Sony HCD-EC68P, HCD-EC78P User Manual

HCD-EC68P/EC78P

SERVICE MANUAL

Ver. 1.0 2008.03

• HCD-EC68P is the amplifi er, CD player and
tuner section in MHC-EC68Pi.

• HCD-EC78P is the amplifi er, CD player and
tuner section in MHC-EC78Pi.

Model Name Using Similar Mechanism

Mechanism Type

Base Unit Name

Optical Pick-up Block Name

Photo : HCD-EC78P

US Model

HCD-EC68P/EC78P

Canadian Model

UK Model

HCD-EC78P

Australian Model

HCD-EC68P

CDM77B-K6BD90-WOD NEW

CDM88A-K6BD90-WOD HCD-EC68

Except EC78P (UK) CDM77B-K6BD90-WOD

EC78P (UK) CDM88A-K6BD90-WOD

BU-K6BD90-WOD

KSM-213DCP

Main unit

AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTALHARMONIC DISTORTION:
(HCD-EC78P e United States model only)
Low channel
With 8 ohm loads, both channels driven, from 120 – 10,000 Hz;
60 watts per channel minimum RMS power, with no more than

0.7% total harmonic distortion from 250 milliwatts to rated output.
High chann el
With 8 ohm loads, both channels driven, from 2,000 – 13,000 Hz;
60 watts per channel minimum RMS power, with no more than

0.7% total harmonic distortion from 250 milliwatts to rated output.

AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTALHARMONIC DISTORTION:
(HCD-EC68P e United States model only)
With 6 ohm loads, both channels driven, from 120 – 10,000 Hz;
40 watts per channel minimum RMS power, with no more than

0.7% total harmonic distortion from 250 milliwatts to rated output.

section

HCD-EC78P: US and Canadian models

RMS output power (reference):

Low channel
95 W + 95 W (per channel at 8 Ω, 1 kHz, 10% THD)
High chann el
95 W + 95 W (per channel at 8 Ω, 8 kHz, 10% THD)

HCD-EC78P: UK model

Power output (rated):

Low channel
50 W + 50 W (at 8 Ω, 1 kHz, 1% THD)
High chann el
50 W + 50 W (at 8 Ω, 8 kHz, 1% THD)

RMS output power (reference):

Low channel
70 W + 70 W (per channel at 8 Ω, 1 kHz, 10% THD)
High chann el
70 W + 70 W (per channel at 8 Ω, 8 kHz, 10% THD)

HCD-EC68P

RMS output power (reference):

70 W + 70 W (per channel at 6 Ω, 1 kHz, 10% THD)

SPECIFICATIONS

Inputs

AUDIO IN (stereo mini jack):
Sensitivity 800 mV, impedance 22 kilohms

Outputs

PHONES (stereo mini jack):
Accepts headphones with an impedance of 8 Ω or more
SPEAKER: impedance
HCD-EC78P: 8 Ω
HCD-EC68P: 6 Ω

CD player section

System: Compact disc and digital audio system

Laser: Semiconductor laser (λ=770 – 810 nm)
Emission duration: continuous
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 88 dB

Tuner section

FM stereo, FM/AM superheterodyne tuner
Antenna:

FM lead antenna
AM loop antenna

FM tuner section:

Tuning range
North American model: 87.5 – 108.0 MHz (100 kHz step)
UK and Aust ralia n mod els: 87.5 – 108.0 MHz (50 kHz step)
Intermediate frequency: 10.7 MHz

AM tuner section:

Tuning range
North American model:
530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
Australian model:
531 – 1,710 kHz (with 9 kHz tuning interval)
530 – 1,710 kHz (with 10 kHz tuning interval)
Intermediate frequency: 450 kHz
UK model:
531 – 1,602 kHz (with 9 kHz tuning interval)
Intermediate frequency: 450 kHz

General

Power requirements:

North American model: AC 120 V, 60 Hz
Australian model: AC 230 – 240 V, 50/60 Hz
UK model: AC 230 V, 50/60 Hz

Power consumption:

HCD-EC78P

USA model: 210 W
Canadian model: 270 VA

UK model: 160 W

0.5 W (in Power Saving Mode)

HCD-EC68P

110 W

Dimensions (w/h/d) (excl. speakers):

Approx. 200 × 306 × 415 mm

Mass (excl. speakers):

HCD-EC78P: US and Canadian models

Approx. 5.8 kg

HCD-EC78P: UK model

Approx. 6.1 kg

HCD-EC68P

Approx. 4.7 kg

COMPACT DISC RECEIVER

9-889-053-01

2008C05-1

2008.03

©

Sony Corporation

Audio Business Group
Published by Sony Techno Create Corporation

HCD-EC68P/EC78P

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam­aged by heat.

Flexible Circuit Board Repairing

• Keep the temperature of soldering iron around 270 °C during
repairing.

• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering
or unsoldering.

CAUTION

Use of controls or adjustments or performance of procedures other than
those specifi ed herein may result in hazardous radiation exposure.

This appliance is
classified as a CLASS 1
LASER product. This
marking is located on the
rear exterior.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow­ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.

2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)

To Exposed Metal
Parts on Set

SAFETY-RELATED COMPONET WARNING!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

AC

1.5 kΩ0.15 μF

Earth Ground

voltmeter
(0.75 V)

Fig. A. Using an AC voltmeter to check AC leakage.

ATTENTION AU COMPOSANT AYANT RAPPORT

LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC­TIONNEMENT. NE REMPLACER CES COM- POSANTS QUE
PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON­NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.

À LA SÉCURITÉ!

2

HCD-EC68P/EC78P

SECTION 1

SERVICING NOTES

TABLE OF CONTENTS

1. SERVICING NOTES ............................................. 3

2. GENERAL .................................................................. 6

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 10

3-2. Side Panel (L)/(R) ........................................................... 11

3-3. Panel (Top) ...................................................................... 11

3-4. MAIN Board ................................................................... 12

3-5. Front Panel Block (EC78P: UK) .................................... 12

3-6. Front Panel Block (EC68P/EC78P: US, Canadian) ........ 13

3-7. Back Panel Block ............................................................ 13

3-8. 3 CD Mechanism Block (EC78P: UK) ........................... 14

3-9. Base Unit (EC78P: UK) .................................................. 14

3-10. 1 CD Mechanism Block

(EC68P/EC78P: US, Canadian) ...................................... 15

3-11. Base Unit (EC68P/EC78P: US, Canadian) ..................... 15

3-12. Belt (EC68P/EC78P: US, Canadian) .............................. 16

3-13. Belt (EC78P: UK) ........................................................... 16

3-14. OP Base Assy (KSM-213D) ........................................... 17

4. TEST MODE ............................................................ 18

5. ELECTRICAL ADJUSTMENTS ........................ 22

6. DIAGRAMS

6-1. Block Diagram - CD SERVO, TUNER Section - ........... 25

6-2. Block Diagram - MAIN Section - ................................... 26

6-3. Printed Wiring Board - CD Board - ................................ 28

6-4. Schematic Diagram - CD Board - ................................... 29

6-5. Printed Wiring Boards - MAIN Section - ....................... 30

6-6. Schematic Diagram - MAIN Section (1/3) - ................... 31

6-7. Schematic Diagram - MAIN Section (2/3) - ................... 32

6-8. Schematic Diagram - MAIN Section (3/3) - ................... 33

6-9. Printed Wiring Board - HI AMP Board (EC78P) - ......... 34

6-10. Schematic Diagram - HI AMP Board (EC78P) - ............ 34

6-11. Printed Wiring Board - LOW AMP Board - ................... 35

6-12. Schematic Diagram - LOW AMP Board - ...................... 35

6-13. Printed Wiring Board - PANEL Board - ......................... 36

6-14. Schematic Diagram - PANEL Board - ............................ 37

6-15. Printed Wiring Boards - KEY Section - .......................... 38

6-16. Schematic Diagram - KEY Section - .............................. 38

6-17. Printed Wiring Board - MOTOR Board

(EC68P/EC78P: US, Canadian models) - ....................... 39

6-18. Schematic Diagram - MOTOR Board

(EC68P/EC78P: US, Canadian models) - ....................... 39

6-19. Printed Wiring Board - PT Board - ................................. 40

6-20. Schematic Diagram - PT Board - .................................... 41

7. EXPLODED VIEWS

7-1. Panel Section ................................................................... 47

7-2. Front Panel Section ......................................................... 48

7-3. Chassis Section ............................................................... 49

7-4. Main Section ................................................................... 50

7-5. 3 CD Mechanism Section (EC78P: UK)

(CDM88A-K6BD90-WOD) ........................................... 51

7-6. 1 CD Mechanism Section (Except EC78P: UK)

(CDM77B-K6BD90-WOD) ........................................... 52

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostat­ic break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The fl exible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused
on the disc refl ective surface by the objective lens in the optical
pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.

Ordinary soldering irons can be used but the iron tip has to be

applied to the solder joint for a slightly longer time.

Soldering irons using a temperature regulator should be set to

about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the

heated tip is applied for too long, so be careful!

• Strong viscosity

Unleaded solder is more viscou-s (sticky, less prone to fl ow)

than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.

• Usable with ordinary solder

It is best to use only unleaded solder but unleaded solder may

also be added to ordinary solder.

RELEASING THE DISC TRAY LOCK

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

Releasing Procedure:

1. Press [I/

2. Press the [FUNCTION] button to select CD function.

3. While pressing the [
seconds).

4. The message “UNLOCKED” is displayed and the disc tray is
unlocked.

Note: When “LOCKED” is displayed, the slot lock is not released by

] button to turn the power on.

1

] button, press the [Z] button for more 5

x

turning power on/off with the [I/1] button.

8. ELECTRICAL PARTS LIST .............................. 53

3

HCD-EC68P/EC78P

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

Pull the tray by the hand.



(EXCEPT EC78P: UK)

boss

Slide the boss by a driver.



HOW TO REMOVE THE KNOB (VOL)

knob (VOL)



(EC78P: UK)

gear

front panel block
(back view)

lever

Turn a gear by a driver



till a lever falls down
to the position of the figure.

hole

Push the knob (VOL) by the flat head driver.



4

CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION

N

In checking the MAIN board, make a capacitor discharge
of C622 and C626 for electric shock prevention.

800 Ω/2W

HCD-EC68P/EC78P

MAIN board

800 Ω/2W

C626

C622

MAIN board

MODEL IDENTIFICATION
– Back Panel –

POWER
VOLTAGE
INDICATIO

Model Power Voltage Indication

EC68P: US/EC78P:
US and Canadian models

EC68P: Australian model

EC78P: UK model AC 230 V, 50/60 Hz

AC 120 V, 60 Hz

AC 230 - 240 V, 50/60 Hz

5

HCD-EC68P/EC78P

HCD-EC68P/EC78P: US and Canadian models:

Basic Operations
















remote,butthesameoperationscanalsobeperformed
usingthebuttonsonthe unithavingthesameor similar
names.

Before using the system

To use the remote

Slide and remove the battery compartment lid ,and
insert the two R6 (size AA) batteries (supplied),  side

Notes on using the remote

• Withnormal use, the batteries should last for about six months.

•

batteries.

• Ifyou do not use the remote for a long period of time, remove the
batteries to avoid damage frombattery le akage and corrosion.

• Batteries installed devicesshall not be exposed to excessive heat such

To set the clock

1 Turn on the system.

Press  (on/standby)

2 Select the clock set mode.

Press TIMER MENU

select “CLOCK,” and then press

3 Set the time.

Press /

(enter)

Use the same procedure to set the minutes.

Note

power failure occurs.







repeatedlytosetthehour,thenpress




















to turn on the system.

/repeatedly to

(enter).

Adjusting the sound

To adjust the volume

Press VOLUME +/− (orturn the VOLUME control on



.

the unit)

To Press

Generate a more dynamic
sound (Dynamic Sound
Generator X-tra)

Playing a CD/MP3 disc

1 Select the CD function.

Press FUNCTION +/− (or FUNCTION on the unit)



repeatedly.

2 Place a disc.

Press  (open/close)
with the label side up on the disc tray.
Toclosethe disctray,press (open/close)
unit.

this may damage the unit.

3 Start playback.

Press  (play)

To Press

Pause play back

Stop playback

Select a folder on an
MP3 disc

Find a point in a

Select RepeatPlay

To change the play mode

Press PLAY MODErepeatedly while the player is
stopped. You can select normal play (no display or “

(“SHUF” or “
play (“PGM”).

* When playing a CD-DA disc, (SHUF)Play performs the same

operation as normal (SHUF) Play.

Notes on Repeat Play

•

•

it.

Notes on playing MP3 discs

•

•

•

the disc.

•

“.MP3”.

•

malfunction.

•

− folders is 150 (including the root folder).

−

−

−

•

device, and recording media cannot be guaranteed.Incompatible
MP3 discs may produce noise or interrupted audioor may not play
at all.

Notes on playing multisession discs

• Ifthe disc begins with a CD-DA (or MP3) session, it is recognized
as a CD-DA (or MP3) disc, and playback continues untilanother
session is encountered.

• A discwith a mixed CD format is recognized as a CD-DA (audio)
disc.



on the unit, and place a disc



.

 (pause)
press the button again.

 (stop)

+/− (select folder).

/

(or/on the unit)

Hold down/ (rewind/fast
forward)
release the button at the desired
point.

REPEAT
“REP” or “REP1” appears.

SECTION 2

GENERAL



on the unit.

DSGX

EQ.



on the



.Toresumeplay,



.

(go back/go forward)







during playback, and

repeatedly until

.

Listening to the radio

1 Select “TUNER FM” or“TUNER AM.”

Press FUNCTION +/− (or FUNCTION ont he unit)



repeatedly.

2 Select the tuning mode.

Press TUNING MODE
appears.

3 Tune in the desired station.

Press +/− (or TUNING +/− on the unit)
Scanning stops automatically when a stationis tuned
in, and then “TUNED” and “ST” (for stereo programs)
appear.

To stop automatic scanning

Press  (stop).

To tune in a station with a weak signal

If “TUNED” does not appear and the scanning does
not stop, press TUNING MODE
“MANUAL” appears, and then press +/− (or TUNING
+/− on the unit)
station.

To reduce static noise on a weakFM stereo
station

Press FM MODErepeatedly until “MONO” appears



repeatedly until “AUTO”

.



repeatedly until

 repeatedly to tune in the desired

Changing the display

To Press

Change
information on
the display*
Change Display
mode (See below.)

* For example,you can view CD/MP3 disc information, such as;

−

− ”) duringnormal play.

− artist name (“

− album or folder name (“

− total pl aying time while the player is stopped.

Display mode

Power Saving

1)

Mode

2)

Clock

1)

Youcannot set the clock in Power Saving Mode.

2)

eight seconds.

Notes on the display information

• Charactersthat cannot be displayed appear as “_”.

•

− total playing time for an MP3 disc.

−

•

−

bit rate).

−

Level 2 or Joliet in the expansion format.

•

− total playing time for a CD-DA disc during normal play.

− remaining playing time for a track.

−

version 2 tags are used (ID3 version 2 tag information displayhas
priority when both ID3 version 1 and version 2 tagsare used for a

− up to 15 characters of ID3 tag information using uppercase letters
(A to Z), numbers (0 to 9), and symbols (‘< > * + , – / @ [ \ ] _).

 repeatedly when the

DISPLAY
system is turned on.

 repeatedly when the

DISPLAY

”) during normal play.

”) duringnormal play.

to operate.

This section is extracted
from instruction manual.

Using optional audio components

To connect an optional headphones

ConnectheadphonestothePHONESjackon the
unit.

To connect an optional component

Connect additional audio source componentsto the
AUDIO IN jack
cord (not supplied). Turn down the volume on the
system, and then select the AUDIO IN function.

To connect a DIGITAL MEDIA PORT adaptor

Connect the DIGITAL MEDIA PORT adaptor to the
DMPORT
DIGITAL MEDIA PORT adaptor to an optionalaudio
device (portable audio player, etc.).

Notes on DIGITAL MEDIA PORT adaptor

• Available DIGITAL MEDIA PORT adaptors vary in each area.

• Donot connect an adaptor other than the DIGITAL MEDIA PORT

adaptor.

• Donot connect or disconnect the DIGITAL MEDIA PORT adaptor
to/from the DMPORT

• Whenusing a DIGITAL MEDIA PORT adaptorthat has video
output function, connect the adaptor directlyto the TV.

• For detailsabout the DIGITAL MEDIA PORT adaptor, refer to the
operating instructions supplied with yourDIGITAL MEDIA PORT
adaptor.

1,



on the unit using an analog audio



on the unit. You need to connect the



while the system is on.

6

HCD-EC68P/EC78P

Other Operations

Creating your own CD program
(Program Play)

Usebuttonsontheremoteto createyourownprogram.

1 Press FUNCTION +/− repeatedly to select the CD

function.

2 Press PLAY MODE

while the player is stopped.

3 Press /

track number appears.

repeatedly to select the desired folder,and then select

4 Press

5 Repeat steps 3 through 5 to program additional

6 

tray. To play the same program again, select the CD
function, and then press 

Tocancel Program Play

Press PLAY MODErepeated ly until “PGM”
disappears whilethe player is stopped.

Press CLEAR

To view program information, such as total
track number of the program

Press DISPLAYrepeatedly.

Presetting radio stations

Youcan preset your favorite radio stations and tune
them in instantly by selecting the corresponding preset
number.

1 Tune in the desired station (See“Listening to the

radio”).

2 Press TUNER MEMORY

3 Press +/− (or TUNING +/− on the unit) 

repeatedly to select your desired preset number.

Ifanotherstationisalreadyassignedtotheselected
preset number, the stationis replaced by the new
stations.

4 Press

5 Repeat steps 1 through 4 to store other stations.

preset stations are retained forabout half a day even
if you disconnect the power cord or if a power failure
occurs.

6 To call up a preset radio station, pressTUNING

MODE
then press +/− (or TUNING +/− on the unit)
repeatedly to select the desired preset number.



repeatedly until“PGM” appears



repeatedly until the desired

Total playing time of the
selected track





.



while the player is stopped.



.

Preset number



.



repeatedly until“PRESE T” appears, and

+/−





Using the timers

timers, the Sleep Timer has priority.

Use buttonson the remote to use the timer functions.

Sleep Timer:

the clock is not set.

 repeatedly. If you select “AUTO,” the

Press SLEEP

or in 100 minutes.

Play Timer:

Youcan wake up to CD or tuner at a preset time.

Make sure you have set the clock.

1 Prepare the sound source.

Press VOLUME +/−

your own CD program.

2 Press TIMER MENU
3 Press /  repeatedly to select“PLAY SET,” then

press

4 Set the time to start playback.

Press /



above to set the minutes.



5 Use the same procedure as in step 4 to set the time

.

to stop playback.

6 Select the sound source.

Press /
want appears, and then press
shows the timer settings.

7 Press 

If the system is on at the preset time, the Play Timer
will not play.

To activate or check the timer again

1 Press TIMER MENU

2 Press

3 Press

/

press

To cancel the timer

Repeatthesameprocedureasabove until“OFF”appears
in step 3, and then press

To change the setting

Start over from step 1.

Tip

manually.

 to adjust the volume.



.



.

 repeatedly to set the hour, then press

.

 repeatedly until the sound source you





.



.



repeatedly to select “PLAY SEL,” then



.



.

Troubleshooting

1 Make sure the power cord and speaker cords are

2 Find your problem in the checklist below, and take

the indicated corrective action.

If the issue persists, contact your nearest Sony dealer.

If “PROTECT” appears on the display

Immediately unplug the power cord,and check the

• Are the + and − speaker cords short-circuited?

• Is anything blocking the ventilation holes on the top

or back of the system?

tobeallright,reconnectthepower cord,andturnon
the system. If the issue persists, contact your nearest
Sony dealer.

General

The system does not turn on.

• Is the power cord plugged in?

There is no sound.

• Are the + and − speaker cords short-circuited?

• Are you using only the supplied speakers?

• Is anything blocking the ventilationholes on the top or

back of the system?

Sound comes from one channel, or the left and
right volumes are unbalanced.

• Place the speakers as symmetrically as possible.



• Connect only the supplied speakers.

Severe hum or noise.

• Move the system away fromsources of noise.

•

•

cord.

The remote does not function.

• Remove any obstacles betwee n the remote and the

• Point the remote atthe system’s sensor.

• Move the remote closer to the system.

remote sensor



on the unit, and po sition the unit

CD/MP3 player

The sound skips, or the disc will not play.

• Wipe the disc clean, and replace it.

• Move the system to a location awayfrom vibration (for

example, on top of a stable stand).

• Move the speakers away fromt he system, orplace them
on separate stands. At high volume, speaker vibration
may cause the sound to skip.

• Return to Normal Play by pressingPL AY MODE
repeatedly until both “PGM” and“SHUF” disappear.

Starting playback takes more time than usual.

− a disc recorded with a complicated tree structure.

− a disc recorded in multisession mode.

−

can be added).

− a disc that has many folders.

The disc tray does not open and“LOCKED”
appears.

• Contact your Sony dealer or local authorizedSony
service facility.

To change the AM tuning interval

10 kHz.
Use buttons onthe unit to change the AM tuning
interval.

1

system.

2 Press DISPLAY

3 While holding down TUNING +

All the AM preset stations are erased. Toreset the
interval to the factory preset, repeat the procedure.



to display the clock.

To improve tuner reception

management function. By default, CD power is turned
on.

1 Press FUNCTION +/− (or FUNCTION on the unit) 

repeatedly to select the CD function.



2 Press 

3

to display the clock, and then press  while
holding down 

“CD POWER OFF” appears. With CD player power

CD player power,repeat the procedure until “CD
POWER ON” appears.

To reset the system to factory settings

If the system still does not operate properly, reset the
system to factory settings.
Use buttons on the unitto reset t he unitto its factor y
default settings.

1 Disconnect and reconnect the power cord, and then

turn on the system.

2 Press 

time.

stations, timer, and the clock, are deleted.



.



, FUNCTION, and at the same

Messages

CANNOT LOCK :

you have done the procedure of “Whencarr ying this
system.”

COMPLETE :
FULL :

(steps).

LOCKED :

nearest Sony dealer.

NO DISC :

loaded a disc that cannot be played.

NO STEP : All of the programmed tracks have been

erased.

OVER : Youhave reached the end of the disc while

PUSH STOP : Youpressed PLAY MODE



PROTECT :

READING :

TIME NG :



pressing 

playback.

− Speaker cords may be short-circuited.

−

See “If “PROTECT” appears on the display” to check
what to do if this message appears.

disc. Some buttons are not available.

thesametime.

during playback or pause.



, press .





during

Tuner

Severe hum or noise, or stations cannot be

display.)

• Connecttheantennaproperly.

• Find a location and an orientation that provide good

reception, and then set up the antenna again.

• Keep the antennas away fromt he speaker cordsand the
power cord to avoid picking up noise.

•

7

HCD-EC68P/EC78P

HCD-EC78P: UK model:

Basic Operations

remote,butthesameoperationscanalsobeperformed
usingthebuttonsonthe unithavingthesameor similar
names.

Before using the system

To use the remote

Slide and remove the battery compartment lid ,and
insert the two R6 (size AA) batteries (supplied),  side

Notes on using the remote

• Withnormal use, the batteries should last for about six months.

•

batteries.

• Ifyou do not use the remote for a long period of time, remove the
batteries to avoid damage frombattery le akage and corrosion.

• Batteries installed devicesshall not be exposed to excessive heat such

To set the clock

1 Turn on the system.

Press  (on/standby)

2 Select the clock set mode.

Press TIMER MENU

select “CLOCK,” and then press

3 Set the time.

Press /

(enter)

Use the same procedure to set the minutes.

Note

power failure occurs.



to turn on the system.



/repeatedly to

(enter).



repeatedlytosetthehour,thenpress



Adjusting the sound

To adjust the volume

Press VOLUME +/− (orturn the VOLUME control on



.

the unit)

To Press

Generate a more dynamic
sound (Dynamic Sound
Generator X-tra)

DSGX

EQ.



on the unit.

Playing a CD/MP3 disc

1 Select the CD function.

Press FUNCTION +/− (or FUNCTION on the unit)



repeatedly.

2 Place a disc.

Press  (open/close)
disc with the label side up on the disc tray.To place

shown below.
Toclos e the disc tray, press  (open/close)
unit.

this may damage the unit.

3 Select a disc.

If the discs are currently stopped, press DISC SKIP
Tochange discs while in other func tions,press
DISC 1 − 3

4 Start playback.

Press  (play)
To exchange other discs during playback, press
EX-CHANGE

To Press

Pause playback

Stop playback

Select a folder on an
MP3 disc

Find a point in a

Select RepeatPlay

To change the play mode

Press PLAY MODErepeatedly while the player is
stopped. You can select normal play (no display for all
discs or “1 DISC” for a disc or “

or “
(“PGM”).

* When playing a CD-DA disc, (SHUF)Play performs the same

operation as 1 DISC (SHUF) Play.

Notes on Repeat Play

•

•

time.

•

it.

Notes on playing MP3 discs

•

•

•

the disc.

•

“.MP3”.

•

malfunction.

•

− folders is 150 (including the root folder).

−

−

−

•

device, and recording media cannotbe guaranteed. Incompatible
MP3 discs may produce noise or interrupted audioor may not play
at all.

Notes on playing multisession discs

• Ifthe disc begins with a CD-DA (or MP3) session, it is recognized
as a CD-DA (or MP3) disc, and playback continues untilanother
session is encountered.

• A discwith a mixed CD format is recognized as a CD-DA (audio)
disc.



on the unit, and place a

 on the unit.



.



on the unit.



 (pause)

.Toresumeplay,

press the button again.



.

 (stop)

+/− (select folder).

(go back/go forward)

/

(or/on the unit)

Hold down/ (rewind/fast



during playback, and

forward)
release the button at the desired
point.



repeatedly until

REPEAT
“REP” or “REP1” appears.



on the



Listening to the radio

1 Select “TUNER FM” or“TUNER AM.”

Press FUNCTION +/− (or FUNCTION on the unit)



repeatedly.

2 Select the tuning mode.

Press TUNING MODE
appears.

3 Tune in the desired station.

Press +/− (or TUNING +/ on the unit)
Scanning stops automatically when a stationis tuned
in, and then “TUNED” and “ST” (for stereo programs)
appear.

To stop automatic scanning

Press  (stop).

To tune in a station with a weak signal

If “TUNED” does not appear and the scanning does
not stop, press TUNING MODE
“MANUAL” appears, and then press +/− (or TUNING
+/− on the unit)
station.

To reduce static noise on a weakFM stereo
station

Press FM MODErepeatedly until“MONO” appears



 repeatedly to tune in the desired

Changing the display

To Press

Change
information on
the display*
Change Display



.

mode (See below.)

* For example,you can view CD/MP3 disc information, such as;

−

− ”) duringnormal play.

− artist name (“

− album or folder name (“

− total playing t ime while the player is stopped.

Display mode

Power Saving

1)

Mode

2)

Clock

1)

Youcannot set the clock in Power Saving Mode.

2)

eight seconds.

.

Notes on the display information

• Charactersthat cannot be displayed appear as “_”.

•

− total playing time for an MP3 disc.

−

•

−

bit rate).

−

Level 2 or Joliet in the expansion format.

•

− total playing time for a CD-DA disc when the play mode is
“1 DISC”.

− remaining playing time for a track.

−

version 2 tags are used (ID3 version 2 tag information displayhas
priority when both ID3 version 1 and version 2 tagsare used for a

− up to 15 characters of ID3 tag information using uppercase letters
(A to Z), numbers (0 to 9), and symbols (‘< > * + , – / @ [ \ ] _).

 repeatedly when the

DISPLAY
system is turned on.

 repeatedly when the

DISPLAY

”) during normal play.

”) duringnormal play.

to operate.

repeatedly until “AUTO”

.



repeatedly until

Using optional audio components

To connect an optional headphones

Connect headphones to the PHONES jackon the
unit.

To connect an optional component

Connect additional audio source componentsto the
AUDIO IN jack
cord (not supplied). Turn down the volume on the
system, and then select the AUDIO IN function.

To connect a DIGITAL MEDIA PORT adaptor

Connect the DIGITAL MEDIA PORT adaptor to the
DMPORT
DIGITAL MEDIA PORT adaptor to an optionalaudio
device (portable audio player, etc.).

Notes on DIGITAL MEDIA PORT adaptor

• Available DIGITAL MEDIA PORT adaptors vary in each area.

• Donot connect an adaptor other than the DIGITAL MEDIA PORT

adaptor.

• Donot connect or disconnect the DIGITAL MEDIA PORT adaptor
to/from the DMPORT

• Whenusing a DIGITAL MEDIA PORT adaptorthat has video
output function, connect t he adaptor directly to the TV.

• For detailsabout the DIGITAL MEDIA PORT adaptor, refer to the
operating instructions supplied with yourDIGITAL MEDIA PORT
adaptor.

1,



on the unit using an analog audio



on the unit. You need to connect t he



while the system is on.

8

HCD-EC68P/EC78P

Other Operations

Creating your own CD program
(Program Play)

Use buttons on the remoteto create your own program.

1 Press FUNCTION +/− (or FUNCTION on the unit) 

repeatedly to select the CD function.

2 Press PLAY MODE

while the player is stopped.

3 Press DISC SKIP
4 Press / (or

repeatedly until the desired track number appears.

repeatedly to select the desired folder,and then selec t

5 Press

6 Repeat steps 3 through 5 to program additional

7 

tray. To play the same program again, select the CD
function, and then press 

Tocancel Program Play

Press PLAY MODErepeated ly until “PGM”
disappears whilethe player is stopped.

Press CLEAR

To view program information, such as total
track number of the program

Press DISPLAYrepeatedly.

Presetting radio stations

Youcan preset your favorite radio stations and tune
them in instantly by selecting the corresponding preset
number.

1 Tune in the desired station (See“Listening to the

radio”).

2 Press TUNER MEMORY

3 Press +/− (or TUNING +/− on the unit) 

repeatedly to select your desired preset number.

Ifanotherstationisalreadyassignedtotheselected
preset number, the stationis replaced by the new
stations.

4 Press

5 Repeat steps 1 through 4 to store other stations.

preset stations are retainedfor about half a day even
if you disconnect the power cord or if a power failure
occurs.

6 To call up a preset radio station, pressTUNING

MODE
then press +/− (or TUNING +/− on the unit)
repeatedly to select the desired preset number.



repeatedly until“PGM” appears



to select a disc.

on the unit)

/

Total playing time of the
selected track





.



while the player is stopped.



.

Preset number



.



repeatedly until“PRESE T” appears, and

+/−







Using the timers

timers, the Sleep Timer has priority.

Usebuttonsontheremotetousethetimerfunctions.

Sleep Timer:

the clock is not set.

XK

Press SLEEP

or in 100 minutes.

Play Timer:

Youcan wake up to CD or tuner at a preset time.

Make sure you have set the clock.

1 Prepare the sound source.

2 Press TIMER MENU
3 Press /

4 Set the time to start playback.

5 Use the same procedure as in step 4 to set the time



.

6 Select the sound source.

7 Press 

To activate or check the timer again

1 Press TIMER MENU

2 Press
3 Press /

To cancel the timer

Repeat the same pro cedure as above until “OFF” appears
in step 3, and then press

To change the setting

Start over from step 1.

Tip

manually.

repeatedly.If you select “AUTO,” the

Press VOLUME +/− (or turn VOLUME onthe unit)



to adjust the volume.

your own CD program.

press

Press /



above to set the minutes.

to stop playback.

Press /
want appears, and then press
shows the timer settings.

If the system is on at the preset time, the Play Timer
will not play.

then press



.



repeatedly to select“PLAY SET,” then



.



repeatedly to set the hour, then press

.



repeatedly untilthe sound source you





.



.



repeatedly to select“PLAY SEL,” and



.



.

Troubleshooting

1 Make sure the power cord and speaker cords are

2 Find your problem in the checklist below, and take

the indicated corrective action.

If the issue persists, contact your nearest Sony dealer.

If “PROTECT” appears on the display

Immediately unplug the power cord,and check the

• Are the + and − sp eaker cordsshort-circuited?

• Is anything blocking the ventilation holes on the top

or back of the system?

tobeallright,reconnectthepower cord,andturnon
the system. If the issue persists, contact your nearest
Sony dealer.

General

The system does not turn on.

• Is the power cord plugged in?

There is no sound.

• Are the + and − sp eaker cordsshort-circuited?

• Are you using only the suppliedsp eakers?

• Is anything blockingt he ventilation holes on the top or

back of the system?

Sound comes from one channel, or the left and
right volumes are unbalanced.

• Place the speakers as symmetrically as possible.

• Connect only the supplied speakers.



Severe hum or noise.

• Move the system awayf romsources of noise.

•

•

cord.

The remote does not function.

• Remove any obstacles between the remote and the

• Point the remote atthe system’s sensor.

• Move the remote closer to the system.

remote sensor



on the unit, and po sition the unit

CD/MP3 player

The sound skips, or the disc will not play.

• Wipe the disc clean, and replace it.

• Move the system to a locationaway from vibration (for

example, on top of a stable stand).

• Move the speakers awayf romthe system, or place them
on separate stands. At high volume,spea kervibration
may cause the sound to skip.

• Return to Normal Play by pressing PLAY MODE
repeatedly until both “PGM” and“SHUF” disappear.

Starting playback takes more time than usual.

•

− a disc recorded with a complicated tree structure.

− a disc recorded in multisession mode.

−

can be added).

− a disc that has many folders.

The disc tray does not open and“LOCKED”
appears.

• Contact your Sony dealer or local authorized Sony
service facility.

To change the AM tuning interval

10 kHz.
Use buttons onthe unit to change the AM tuning
interval.

1

system.

2 Press DISPLAY

3 While holding down TUNING +

All the AM preset stations are erased. Toreset the
interval to the factory preset, repeat the procedure.



to display the clock.

To improve tuner reception

management function. By default, CD power is turned
on.

1 Press FUNCTION +/− (or FUNCTION on the unit)

repeatedly to select the CD function.



2 Press 

3

to display the clock, and then press  while
holding down 

“CD POWER OFF” appears. With CD player power

CD player power,repeat the procedure until “CD
POWER ON” appears.

To reset the system to factory settings

If the system still does not operate properly, reset the
system to factory settings.
Use buttons on the unitto reset t he unitto its factor y
default settings.

1 Disconnect and reconnect the power cord, and then

turn on the system.

2 Press 

time.

stations, timer, and the clock, are deleted.



.



, FUNCTION, and at the same

Messages

CANNOT LOCK :

you have done the procedure of“When carr ying this
system.”

COMPLETE :
FULL :

(steps).

LOCKED :

nearest Sony dealer.

NO DISC :

loaded a disc that cannot be played.

NO STEP : All of the programmed tracks have been

erased.

OVER : Youhavereachedthe endofthe discwhile

PUSH STOP : Youpressed PLAY MODE



PROTECT :

READING :

TIME NG :



pressing 

playback.

− Speaker cords may be short-circuited.

−

disc. Some buttons are not available.

the same time.

during playback or pause.

See “If “PROTECT” appears on the display” to check
what to do if this message appears.



, press .







during

Tuner

Severe hum or noise, or stations cannot be

display.)

• Connecttheantennaproperly.

• Find a location and an orientation that provide good

reception, and then set up the antenna again.

• Keep the antennas away fromt he speaker cordsand the
power cord to avoid picking up noise.

•

9

HCD-EC68P/EC78P

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. SIDE PANEL (L)/(R)
(Page 11)

3-3. PANEL (TOP)
(Page 11)

SECTION 3

DISASSEMBLY

3-5. FRONT PANEL
BLOCK (EC78P: UK)
(Page 12)

3-8. 3 CD MECHANISM BLOCK
(EC78P: UK)
(Page 14)

3-9. BASE UNIT (EC78P: UK)
(Page 14)

3-14. OP BASE ASSY
(KSM-213D)
(Page 17)

(EC78P: UK)

3-4. MAIN BOARD
(Page 12)

3-13. BELT
(EC78P: UK)
(Page 16)

3-6. FRONT PANEL BLOCK
(EC68P/EC78P: US, Canadian)
(Page 13)

3-10. 1 CD MECHANISM BLOCK
(EC68P/EC78P: US, Canadian)
(Page 15)

3-11. BASE UNIT
(EC68P/EC78P: US, Canadian)
(Page 15)

3-12. BELT
(EC68P/EC78P: US, Canadian)
(Page 16)

3-14. OP BASE ASSY
(KSM-213D)
(Page 17)

(EC68P/EC78P: US, Canadian)

3-7. BACK PANEL
BLOCK
(Page 13)

10

Note: Follow the disassembly procedure in the numerical order given.

3-2. SIDE PANEL (L)/(R)

four screws



(case3 TP)

side panel (L)



two screws



(BVTP3 × 10)

HCD-EC68P/EC78P

two screws



(BVTP3 × 10)

3-3. PANEL (TOP)



(KTP3 × 10)

screw

panel (top)



two claws



two screws



(BVTP3 × 10)



side panel (R)



four screws



(case3 TP)

two screws



(BVTP3 × 10)

screw



(KTP3 × 10)

11

HCD-EC68P/EC78P

3-4. MAIN BOARD

two screws

RG

(BVTP3 × 6)

screw

RB

(BVTP3 × 10)

flexible flat cable (31 core)



(CN803)

flexible flat cable (9 core)



(CN605)

flexible flat cable (11 core)



(CN609)

connector (CN604)



MAIN board

RH

connector (CN151) (EC78P)



flexible flat cable (5 core)



(CN603)

flexible flat cable (5 core)



(CN602) (EC78P)

connector (CN633)



connector (CN601)



two screws

RE

(BVTP3 × 10) (EC78P)

two screws

RT

(BVTP3 × 10)

flexible flat cable (21 core)



(CN608)

3-5. FRONT PANEL BLOCK (EC78P: UK)

flexible flat cable



(11 core) (CN609)

flexible flat cable (31 core)



(CN803)

front panel block



flexible flat cable (13 core)



(CN302)

lever

12

door (CD)



flexible flat cable



(9 core) (CN605)

pull the tray by hand.



two screws



(BVTP3 × 10)

gear

Turn a gear by a driver



till a lever falls down
to the position of the figure.

3-6. FRONT PANEL BLOCK (EC68P/EC78P: US, Canadian)

flexible flat cable



(11 core) (CN609)

flexible flat cable (31 core)



(CN803)

front panel block



HCD-EC68P/EC78P

door (1 CD)



flexible flat cable



(5 core) (CN001)

3-7. BACK PANEL BLOCK

connector (power cord)



(CN053)

screw



(BVTP3 × 10)

flexible flat cable



(9 core) (CN605)

pull the tray by hand.



two screws



(BVTP3 × 10)

connector (CN601)



Slide the boss by a driver.



two screws



(BVTP3 × 10) (EC78)

two screws



(BVTP3 × 10)

four screws



(BVTP3 × 10)

boss

two screws



(BVTP3 × 10)

back panel block



Cut the clamp.



Note: Please do not forget fixation by clamping
when you install the power cord.

13

HCD-EC68P/EC78P

3-8. 3 CD MECHANISM BLOCK (EC78P: UK)

flexible flat cable



(21 core)
(MAIN board: CN608/
CD board: CN201)

3 CD mechanism block





flexible flat cable



(13 core)

two screws (BVWH)



3-9. BASE UNIT (EC78P: UK)

 two screws (PTPWHM2.6)

 two springs (insulator)

 insulator

cover (DLM3)



 insulator

 insulator

four screws



(BVTP3 × 10)

two tapes



Note: When installing the CD mechanism section,
install two tapes for prevention of noise.

 two screws (PTPWHM2.6)

 two springs

(insulator)

 insulator



 base unit

14

3 CD mechanism block

– Bottom view –

3-10. 1 CD MECHANISM BLOCK (EC68P/EC78P: US, Canadian)

PT block



two screws



(BVTP4 × 12)

three screws



(BVTP3 × 10)

1 CD mechanism block



flexible flat cable



(21 core) (CN201)

HCD-EC68P/EC78P

connector



(CN053)

two screws



(BVTP4 × 12)

flexible flat cable (5 core)



(CN001)

3-11. BASE UNIT (EC68P/EC78P: US, Canadian)

 floating screw

 two floating screws

 two springs (insulator)

 insulator

 two floating screws

 two springs

(insulator)

 insulator

 insulator

 insulator

– Bottom view –



 base unit

loading (BK) assy

15

HCD-EC68P/EC78P

3-12. BELT (EC68P/EC78P: US, Canadian)

position of belt

belt



claw





belt

tray (AU)



3-13. BELT (EC78P: UK)

position of belt

belt



claw

16

belt

two belts (DLM3A)





cover

four screws



3-14. OP BASE ASSY (KSM-213D)

op base assy



(KSM-213D)

flexible flat cable (16 core)



(CN301)

CD board



HCD-EC68P/EC78P

Remove four solders.



17

HCD-EC68P/EC78P

SECTION 4

TEST MODE

COLD RESET

The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.

Procedure:

1. In the standby status, press the [
on.

2. Press three buttons of [x], [FUNCTION] and at last [
multaneously.

3. When “RESET” appears, the set enters standby status.

] button to turn the power

I/1

I/1

] si-

PANEL TEST MODE

Enter The Panel Test Mode

Procedure:

1. In the standby status, press the [
on.

2. Press three buttons of [DISPLAY], [x], and [FUNCTION] si­multaneously.

3. When the panel test mode is activated, LEDs and segments of
the liquid crystal display are all turned on.

Version Check

Procedure:

1. In the panel test mode (all LEDs and segments of the liquid
crystal display are turned on), press the [FUNCTION] button.

2. On the liquid crystal display, date and version are displayed
“xxxxxxxx”. For example, “1114V102”.

3. From this status, press the [X] button, and the destination and
model name are displayed. For example, “CE2” and “ESLO–”.

4. To release from this mode, press three buttons of [DISPLAY],
[x], and [FUNCTION] simultaneously.

Key Test Mode

Procedure:

1. In the panel test mode (all LEDs and segments of the liquid
crystal display are turned on), press the [DISPLAY] button.

2. The message “KEY0 0 0”displayed. Whenever any buttons
are pressed and the [VOLUME] dial is turned, the value is
changed.

3. To release from this mode, press three buttons of [DISPLAY],
[

], and [FUNCTION] simultaneously.

x

] button to turn the power

I/1

CD REPEAT 5 LIMIT CANCEL MODE

Number of repeats for CD playback is 5 times when the repeat
mode is “REPEAT”. This mode enables CD to repeat playback for
limitless times.

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select CD function.

3. Press three buttons of [DISPLAY], [
ING] simultaneously.

4. It enters the CD repeat 5 limit cancel mode and displays “NO
LIMIT”

5. To release this mode, press the [

] button to turn the power on.

I/1

I/1

], and [

x

] button to turn the power off.

l m

– TUN-

CD SHIP MODE

This mode can run the CD sled motor optionally. Use this mode,
for instance, when cleaning the optical pick-up.

Procedure:

1. Press the [

2. Confi rm there is no disc in all trays.

3. Press the [FUNCTION] button to select CD function.

4. Press two buttons of [CD N] and [

5. Set to the CD ship mode. (chucking on)

6. After blink “STANDBY”, “LOCK” is displayed, disconnect
the AC plug.

] button to turn the power on.

I/1

] simultaneously.

I/1

CD TRAY LOCK

This mode is for the antitheft of CD disc in shop. (not for trans­port)

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select CD function.

3. Insert a disc.

4. While pressing the [
seconds.

5. The message “LOCKED” is displayed and the disc tray is
locked. (Even if exiting from this mode, the disc tray is still
locked)

6. If press the [Z] button to eject the disc, the message “LOCKED”
is displayed and can not eject the disc.

7. To release this lock, while pressing the [

] button for 5 seconds again.

[

Z

8. The message “UNLOCKED” is displayed and the disc tray is
unlocked.

] button to turn the power on.

I/1

] button, press the [Z] button for more 5

x

] button, press the

x

CD POWER MANAGE

This mode is for switch the CD power supply on/off. Even if this
state pulls out AC plug, it is held.

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select CD function.

3. Press the [

4. After pressing the [DISPLAY] button, while pressing the [
button, press the [

5. It turns power on and display “CD POWER”, then display
“ON” or “OFF”.

] button to turn the power on.

I/1

] button again to turn the power off (standby).

I/1

] button.

I/1

]

x

CHANGE-OVER THE AM TUNING INTERVAL

(Except EC78P: UK model)

The AM tuning interval can be changed over 9 kHz or 10 kHz.

Procedure:

1. Press the [

2. Press the [TUNER/BAND] button to select TUNER (AM)
function.

3. Press the [

4. After pressing the [DISPLAY] button, while pressing the
[TUNING +

5. It turns power on and display “9k STEP” or “10k STEP”, and
thus the tuning interval is changed over.

] button to turn the power on.

I/1

] button again to turn the power off (standby).

I/1

M L

] button, press the [

I/1

] button.

CD SHIP AND COLD RESET

Procedure:

1. Press the [

2. Confi rm there is no disc in all trays.

3. Press the [FUNCTION] button to select CD function.

4. Press three buttons of [PLAY MODE/TUNING MODE],
[

l m

5. After blink “STANDBY”, “RESET” is displayed, disconnect
the AC plug.

] button to turn the power on.

I/1

– TUNING] and [

] simultaneously.

I/1

COMMON TEST MODE

Procedure:

1. Press the [

2. Press three buttons of [PLAY MODE/TUNING MODE],
[TUNING +

3. It enters the common test mode and displays “COMMON”.

4. Each time the [VOLUME] dial is turned, “VOL MIN”, “VOL
16”, and “VOL MAX” are displayed.

5. To release from this mode, press three buttons of [PLAY
MODE/TUNING MODE], [TUNING +
PLAY] simultaneously.

] button to turn the power on.

I/1

M L

], and [DISPLAY] simultaneously.

M L

], and [DIS-

18

HCD-EC68P/EC78P

[CD SERVO TEST MODE]

This mode can check the servo system operations of the optical
pick-up system (= optical unit + CD board).

Note1: Do not enter the [CD SERVO TEST MODE] while any other test

mode is in progress.

Note2: Do not enter any other test mode while the [CD SERVO TEST

MODE] is in progress.

How to Enter the CD Servo Test Mode

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select CD function.

3. Press three buttons of [CD N], [

[DISPLAY] simultaneously.

4. It enters the CD servo test mode and displays “BDT S CU”.

How to Exit from the CD Servo Test Mode

Procedure:

1. Press three buttons of [CD N], [

[DISPLAY] simultaneously.

2. It releases from the CD Servo Test Mode and returns to the
ordinary CD function.

Key Operation:

[

+], [ –]:

Use these keys to move between the fi ve modes

[DSGX] , [EQ]:
Use these keys to move between the different layers

[TUNING +
Use these keys to move the cursor to the right digit

Press [TUNING +

] button to turn the power on.

I/1

l m

l m

– TUNING] and

– TUNING] and

contained in the CD Servo Test Mode, that are the
S-Curve Mode, the RAM Read Mode, the RAM
Write Mode, the Command Out Mode and the Error
Rate Mode as described below. Also, use these keys
to move between the menus within the respective
fi ve modes. When [

+] is pressed, the screen ad­vances to the next menu or to the next mode. When
[ –] is pressed, the screen returns back to the
previous menu or to the previous mode. Use these
keys also to increase or decrease the numeric value
when changing the numeric value. Pressing [ +]
increases the value and pressing [ –] decreases
the value.

of the hierarchy of the CD Servo Test Mode shown
below. Press [DSGX] to move down to the lower
layer, and press [EQ] to move up to the higher lay­er.

M L

], [

l m

– TUNING]:

or to the left digit in the six-digit number, when
changing the numeric value.

M L

to the right, and press [

] to move the cursor

l m

– TUNING] to

return the cursor to the left.

CD Servo Test Mode Tree:

S Curve Mode LD ON
(BDT S CU) (LD ON)

RAM Read Mode
(BDTRAM R) (DISCTYPE) (AL: 0000, RW: 0001)
Gain Index value indication
(GAININDX) (0001)
RFO GAIN value indication
(RFO_GAIN) (0009)
FEO GAIN value indication
(FEO_GAIN) (0005)
SBAD GAIN value indication
(SBAD_GAI) (0007)
TEO GAIN value indication
(TEO_GAIN) (000A)
Disc Size value indication
(DISCSIZE) (0000: Non disc, 0001: 8cm,
0002: 12cm)

(OPABRKER) (0000)
SBBT Data value indication
(SBBT DAT) (006C)
FEOOCD value indication
(FEOOCD) (0440)

RAM Write Mode
(BDTRAM W) (00 SPG) (Non mask:00, Mask:01)
Fix RF Gain value edit
(00 FIX) (Non Fix:00, AL Fix:01, RW Fix:02)
TMAX ON value edit
(00 TMA)
Driver Mute OFF value edit
(00 D_M) (Normal:00, Forced OFF:01)

Command Out Mode
(BDT COMO) (COMOUT6X) (000000) (OK)
READ2X value edit command out
(READ2X) (60) (50)
REG READ value edit command out
(REG_READ) (00) (0000)
FEBC? command out
(FEBC?) (00)
FGADD? command out
(FGADD?) (10)
TEBC? command out
(TEBC?) (00)
TGADD? command out
(TGADD?) (00)
RFGC? command out
(RFGC?) (00)
FEOF? command out
(FEOF?) (FFC0)
TEOF? command out
(TEOF?) (FFC0)
TEIOCD1? command out
(TEIOCD1?) (FE80)
TEIOCD2? command out
(TEIOCD2?) (FF40)
TEIOCD3? command out
(TEIOCD3?) (FFC0)
TEOOCD? command out
(TEOOCD?) (FD00)
FEOOCD? command out
(FEOOCD?) (F780)
MONITOR value edit command out
(MONITOR) (570A00) (OK)
Error Rate Mode Error rate indication
(BDT ERR) (00000000)

Higher layer Lower layer of menu hierarchy

Disc Type value indication

Op ABRAKE Error

SPG Mask value edit

COMOUT6X value edit command out

value indication

[FUNCTION]:
Use this key to execute Command Out in the Com-

mand Out Mode.

19

HCD-EC68P/EC78P

CD SERVICE MODE

This mode can move the SLED of the optical pick-up, and also can
turn the optical pick-up laser power on and off.

Procedure:

1. Press the [

2. Press three buttons of [CD N], [TUNING +

DISPLAY simultaneously.

3. Press the [FUNCTION] button to select CD function.

4. It enters the CD service mode and displays “SERVICE”.

5. To exit from this mode, press three buttons of [CD N], [TUN-

ING +

Key Operation:

[TUNING +
Use these keys to move the SLED. When [TUN-

When [

[DISPLAY]:
Use this key to turn the optical pick-up laser power

] button to turn the power on.

I/1

M L

M L

] and DISPLAY simultaneously.

M L

], [

l m

ING +

M L

moves to outer circumference and the message
“SLED OUT” is displayed.

l m

mode, the SLED moves to inner circumference and
the message “SLED IN” is displayed.

on and off. When the laser power is turned on, the
message “LD ON” is displayed. When the laser
power is turned off, the message “LD OFF” is dis­played.

– TUNING]:

] is pressed in this mode, the SLED

– TUNING] is pressed in this

], and

CD ERROR CODE

The past errors of the CD mechanism (CDM) are displayed as the
CDM Errors, and those of the optical pick-up system (= optical
unit + CD board) are displayed as the BD Errors as shown below.

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select CD function.

3. Press three buttons of [TUNING +
PLAY] simultaneously.

4. Then, the CDM error code is displayed as “M0xxxxxx” (x
means hexadecimal number) on the liquid crystal display as
shown below.

5. Every pressing of the [TUNING +
mode increments the number after “M” starting from “M0” up
to “M9”, and then returns to “M0”. Every pressing of the [

m

– TUNING] button in this mode decrements the number
after “M”. The smaller the error code number is, the newer the
error content is.

6. When the [PLAY MODE/TUNING MODE] button is pressed
then, the BD error code is displayed as “D0xxxxxx” (x means
hexadecimal number) on the liquid crystal display as shown
below. In the same way as the CDM error code, use of the
[TUNING +
tons in this mode enables tracing of the error history.

7. To release from this mode, press the [
power off.

] button to turn the power on.

I/1

M L

] and the [

M L

M L

l m

I/1

], [x] and [DIS-

] button in this

l

– TUNING] but-

] button to turn the

Contents of “CDM Errors”

Error display example

M 0 FF 11 42
1 2 3 4

1 It indicates the error history number
0 to 9: The error code number 0 indicates the newest error.

2 It indicates whether the CDM error occurs in the normal opera-

tions or during the initialization operation.
FF : The error has occurred in the normal opera-

tions.

Other than FF : The error has occurred during the initialization

operation.

3 It indicates the processing during which the trouble has oc-

curred.
01: The disc EJECT processing is in progress.
02: The disc INSERTION-WAITING processing is in prog-

ress.

03: Processing of the disc INSERTION-REQUEST for the up-

per CD tray is in progress.

04: Processing of the disc EJECTION-REQUEST for the up-

per CD tray is in progress.
05: The disc pulling-in operation is in progress.
06: The disc chucking processing is in progress.
07: The disc re-chucking processing is in progress.
08: The disc chucking-release completion operation is in prog-

ress.

4 It indicates the operation during which the trouble has oc-

curred.
00 : Waiting for the operation.
10 to 13 : The disc EJECT operation is in progress.
20 : The disc pulling-in operation is in progress.
30 : The disc chucking-release operation is in progress.
40 to 43 : The disc EJECT operation due to error is in prog-

ress.

Contents of “BD Errors”

Error display example

0 02 09

D
1 2 3 4

1 It indicates the error history number
0 to 9: The error code number 0 indicates the newest error.

2 It indicates the error content

01: The focus servo cannot lock-in.
02: GFS is no good (NG).
03: The startup time exceeds the specifi ed period of time (time

over)
04: The focus servo is unlocked continuously.
05: Q code cannot be obtained within the specifi ed period of

time.
06: The tracking servo cannot lock-in.
07: Blank disc

01

20

HCD-EC68P/EC78P

3 It indicates the on-going processing of optical pick-up system

(= optical unit + BD board) when the trouble has occurred.
01: The CD SHIP mode processing is in progress.
02: The POWER OFF processing is in progress.
03: The INITIALIZE processing is in progress.
04: The optical pick-up system (= optical unit + BD board) is

in the stop state.
05: The STOP operation is in progress.
06: The startup processing is in progress.
07: The TOC read-in processing is in progress.
08: The SEARCH operation is in progress.
09: The PLAY operation is in progress.
0A: The PAUSE operation is in progress.
0B: The PLAY – MANUAL SEARCH operation is in prog-

ress.
0C: The PAUSE – MANUAL SEARCH operation is in prog-

ress.

4 It indicates the operation that is being processed when the trou-

ble has occurred.

It indicates the step number of each processing specifi ed by 3.

Because the numbers of steps are different in each processing,
this number is different in each processing.

CD FACTORY MODE

Note1: Do not enter the [CD FACTORY MODE] while any other test-

mode is in progress.

Note2: Do not enter any other test mode while the [CD FACTORY

MODE] is in progress.

Key Operation:

[DISPLAY]:
The display changes in the following order when-

ever the button is pressed.

[DSGX]:
RF gain setting changes whenever the button is

“–”: No gain fi xation.
“AL”: Fix to the gain for AL disc.
“RW”: Fix to the gain for RW disc.

[EQ]:
Tracking servo setting changes whenever the but-

“ON”: Tracking servo ON.
“OFF”: Tracking servo OFF.

[FUNCTION]:
S character mode setting changes whenever the but-

“ ”: S character mode OFF.
“S”: S character mode ON.

(Initial display)

fcsAG ** (**: Focus AGC value)

trkAG ** (**: Track AGC value)

RF-AG ** (**: RF AGC value)

pressed.

ton is pressed.

ton is pressed.

Procedure:

1. Press the [

2. Press the [FUNCTION] button to select CD function

3. Press three buttons of [CD N], [FUNCTION], and [DIS-

PLAY] simultaneously.

4. It enters the CD factory mode and displays the following mes­sage.

] button to turn the power on.

I/1

–X1ON

S character mode setting
Tracking servo setting
RF gain setting

5. To release from this mode, press the [
power off.

] button to turn the

I/1

21

HCD-EC68P/EC78P

SECTION 5

ELECTRICAL ADJUSTMENTS

CD SECTION

Note:

1. CD Block is basically constructed to operate without adjustment.

2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10 MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specifi ed value with the following checks.

5. Check the focus bias check when optical pick-up block is replaced.

FOCUS BIAS CHECK

oscilloscope

(DC range)

CD board

TP121 (RFI)

TP124 (VC)

+
–

Procedure :

1. Connect the oscilloscope to TP121 (RFI) and TP124 (VC) on
the CD board.

2. Press the [I/1] button to turn the power ON, and press the [Z]
button to open the CD disc tray.

3. Set disc (YEDS-18) on the trey and press the [CD N] button
to playback.

4. Confi rm that oscilloscope waveform is as shown in the fi gure
below. (eye pattern)

A good eye pattern means that the diamond shape (◊) in the

center of the waveform can be clearly distinguished.

VOLT/DIV: 200 mV
TIME/DIV: 500 ns

TUNER SECTION

0 dB = 1 μV

[AM]

Setting:

FUNCTION: AM

loop antenna A

AM RF signal
generator

30% amplitude
modulation by
400 Hz signal

Output level: 54 dBuV

MAIN board
ANTENNA
CN801 pin 

[FM]

Setting:

FUNCTION: FM

FM RF signal

generator

0.01 F

75kHz frequency
deviation by 1K Hz
signal
Output level: as low as possible
(8dBuV)

MAIN board
ANTENNA
CN801 pin 

60 cm

loop antenna B

set

MAIN board
ANTENNA
CN801 pin 

set

level meter

32 Ω

JACK board
PHONES jack (J492)

32 Ω

JACK board
PHONES jack (J492)

+
–

level meter

+
–

Checking Location:

– CD Board (Conductor Side) –

TP124

(VC)

TP121

(RFI)

IC101

level:

1.2 ± 0.3 Vp-p

digital voltmeter

MAIN board

IC801 pin XL (TUNER VT)

100 kΩ

• Repeat the procedures in each adjustment several times.

22

HCD-EC68P/EC78P

AM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display

L801 530 kHz 1.5 ± 0.1 V

Confi rmation 1,710 kHz 8 ± 0.5 V

AM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display

L801 531 kHz 1.5 ± 0.1 V

Confi rmation 1,602 kHz 7.2 ± 0.5 V

FM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display

L803 87.5 kHz 1.75 ± 0.1 V

Confi rmation 108 kHz 6.2 ± 0.5 V

(Except EC78P: UK model)

Reading on Digital

Voltmeter

(EC78P: UK model)

Reading on Digital

Voltmeter

AM TRACKING ADJUSTMENT

(Except EC78P: UK model)

Adjust for a maximum reading on level meter

L805 530 kHz

AM TRACKING ADJUSTMENT

(EC78P: UK model)

Adjust for a maximum reading on level meter

L805 531 kHz

Reading on Digital

Voltmeter

FM TRACKING ADJUSTMENT

Adjust for a minimum reading on level meter

L804 98 MHz

FM AUTO STOP CHECK

generator

SET

+

75 Ω

Procedure :

1. Turn the power on.

2. Input the following signal from Signal Generator to FM an­tenna input directly.

* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)

Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You

cannot use video cable for checking.

Please use SG whose output impedance is 75 ohm.

3. Set to FM tuner function and scan the input FM signal with
automatic scanning.

4. Confi rm that input Frequency of A, B and C detected and auto-
matic scanning stops.

The stop of automatic scanning means “The station signal is re­ceived in good condition”.

Adjustment Location: MAIN board (See page 24)

FM DETECTOR ADJUSTMENT

Setting:

FUNCTION: FM

FM RF signal

generator

Carrier frequency: 98MHz
Modulation:
deviation by FM 75 kHz
Output level: 60 dBuV

MAIN board
ANTENNA
CN801 pin 

set

MAIN board
ANTENNA
CN801 pin 

MAIN board
IC801 pin RT
(TUNER OUT L-ch)

level meter

+
–

MAIN board
JW801 (TUNER-GND)

1. Turn the set to 98 MHz.

2. Adjust L802 so that modulation distortion may become the
best in the vicinity of the maximum value where the tuner out
level becomes –15dBuV or more.

23

HCD-EC68P/EC78P

Adjustment Location and Connecting Points:

– MAIN Board (Component Side) –

L801

L804
AM Tracking

Adjustment

FM Frequency
Coverage Adjustment

L802

FM Detector
Adjustment

L803

FM Frequency
Coverage Adjustment

L805

AM Tracking
Adjustment

– MAIN Board (Conductor Side) –

3

CN801
ANTENNA

1

36

IC801

1

IC801 pin RT
(TUNER OUT L-ch)

IC801 pin XL
(TUNER VT)

19

18

JW801
(TUNER-GND)

24

HCD-EC68P/EC78P

HCD-EC68P/EC78P

2525

6-1. BLOCK DIAGRAM - CD SERVO, TUNER Section -

SECTION 6

DIAGRAMS

OPTICAL PICK-UP BLOCK

(KSM-213DCP)

B

C
D
E

A

F

SP+

SP-

LD

PD

VC

AUTOMATIC

POWER

CONTROL

Q301

FOCUS/TRACKING COIL DRIVE,

SLED/SPINDLE MOTOR DRIVE

IC401

CD-MP3 PROCESSOR

IC101

VO1+2
VO1-

1

IN1

3

SL+

SL-

VO2-

12

VO2+

11

IN2’

9

T+

T-

VO3+

18

VO3-

17

IN3’

20

F+

F-

CD MECHANISM

DECK

M1-

M2+
M2-

M1+

VO4+

26

VO4-

27

IN4’

24

MUTE

7

97 FPi1 (B)
94 FNi2 (C)
96 FPi2 (D)

100

TNi (E)

95 FNi1 (A)

98 TPi (F)

91 LDo

MDi

84 VRo

13 DMo

92

12 FMo

10 TRo

9FOo

XO

XI

X102

16.9344MHz

S201

(LIMIT)

24

23

IO0 (/HSO)

20

LO CD-L30

RO R-CH

27

BUS0

38

BUS1

39

I/O-CD-BUS0

17

I/O-CD-BUS1

18

BUS2 (SO) 40

BUS3 (SI)

41

BUCK (CLK)

42

XCCE

43

PIO0

48

I/O-CD-BUS2

19

I/O-CD-BUS3

20

O-CD-BUCK

25

O-CD-CCE

26

XRST 37 O-CD-RST27

O-DR-MUTE

23

I-REQ

24

SBSY

54

O-3CD-M1+/O-CDM-M1+

8

O-3CD-M1-/O-CDM-M1- 10

O-3CD-M2+/NC

11

O-3CD-M2-/NC

12

O-CD-SBSY

43

B

A

MM

MOTOR
DRIVER

IC303

S001

DISC TRAY

OPEN/CLOSE DETECT

CLOSE

OPEN

M001

(LOADING)

(EC68P/EC78P: US, Canadian)

(EC78P: UK)

MOTOR

DRIVE

Q311 - 318

SW3

SW2
I-CHACK

SW1

I-3CD-SW1/O-CDM-OPEN

7

I-3CD-SW3/O-CDM-CLOSE

5

I-3CD-SW2/NC 6

I-3CD-CHACK

21

I-STOCK

I-OPEN
I-CLOSE

I-3CD-STOCK

22

I-1CD-CLOSE_OPEN/NC

48

AM/FM-DET, OSC, MIX, PLL, IF AMP

IC801

36

FM RF-IN

8

FM IF-IN

22

MPX-IN

1

AM RF-IN

31

AM-OSC

33

I-TU-DO

56

O-TU-CLK

55

O-TU-CE

57

O-TU-DI

39

I-TU-ANSD

X801

75kHz

2019

XIN

XOUT

16DI17CL15

CE

18DO25

AGC

3

CN801

ANTENNA

FM/AM

1

BAND-PASS

FILTER

FL803

AM

TRACKING

L805

AM FREQUENCY

COVERAGE

L801

D801

7

AM IF-IN

T801

AM IF

34

FM RF-OUT

FM

TRACKING

L804

32

FM-OSC

FM FREQUENCY

COVERAGE

L803

+9V

11

FM-DET

FM

DETECTOR

L802

3FM-MIX 23FM DET-OUT 12L-OUT

13

R-OUT R-CH

TUNER-L

5

AM-MIX

24

AM DET-OUT

CF801

• SIGNAL PATH

: AM

: CD PLAY

• R-ch is omitted due to same as L-ch.

: FM

SYSTEM CONTROLLER

IC301 (1/2)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

2626

6-2. BLOCK DIAGRAM - MAIN Section -

SYSTEM CONTROLLER

IC301 (2/2)

INPUT SELECTOR,

ELECTRICAL VOLUME

IC602

4 19TUNER-L OUT-L

9SEL-L

12VOL-L

TUNER-L

31 O-USB-RXD/O-DMP-RXD

45 I-DMP-DET/O-USB-RST

29 I-USB-TXD/I-DMP-TXD

2 TC/DMP-L

A

6 CD-L

8 AUDIO-L

CD-L

B

M601
(FAN)

I-RST

54

I-USB-DO/I-DMP-5V-DET

30

I-HOLD

42

49

I/O-I2C-DATA

50

I/O-I2C-CLK

26

SDATA25SCLK

3O-POWER

• SIGNAL PATH

: CD PLAY

• R-ch is omitted due to same as L-ch.

: FM

: DMPORT

: AUDIO IN

FAN MOTOR

DRIVE

Q601, 602

PROTECT

DETECT

Q603

34O-USB-DI/5V-ON/O-TP-REC-MUTE

4O-CD-ON

RELAY
DRIVE

Q619

PROTECT

DETECT

Q611, 612

PROTECT

DETECT

Q605, 606

OVER LOAD

DETECT

Q101, 102

D103

OVER LOAD

DETECT

Q151, 152

POWER AMP

IC101

(EC68P/EC78P: UK)

IC102

(EC78P: US, CND)

POWER AMP

IC151

(EC78P: UK)

IC152

(EC78P: US, CND)

+1.5V

REGULATOR

IC201

CD +1.5V

+9V

REGULATOR

IC601

+9V

+5V

REGULATOR

IC701

DMPORT +5V

RELAY B+

+3.3V

REGULATOR

Q622, 624

VOLTAGE

DETECT

Q305, 306

VOLTAGE

DETECT

Q761, 762

+4V

REGULATOR

Q302 - 304

D631

+9V

CD +3.3V

+3V

REGULATOR

Q801

TUNER +3V

+5V

REGULATOR

Q802

TUNER +5V

SYSTEM +3.3V

D152

D601

R-CH

D303

D055

D617

D628

D602, 606

MM

DC DETECT

Q618

STANDBY

SWITCH

Q608

J492

RY602

R-CH

PHONES

J491

AUDIO IN

CN901

DMPORT

SPEAKER

IMPEDANCE

USE 6Ω

SPEAKER

LOW FREQ.

IMPEDANCE

USE 8Ω

SPEAKER
HIGH FREQ.
IMPEDANCE

USE 8Ω

+
–

–

+

R

L

TB602

R-CH

+
–

–

+

R

L

TB601

R-CH

R-CH

2

O-AMP-ON

RY601

(EC68P)

(EC78P: UK)

(EC78P)

RY001

(EC68P: US/EC78P)

RY002

(EC68P: AUS)

PT001 (EC68P: US/EC78P)

PT002 (EC68P: AUS)

SUB POWER TRANSFORMER

PT003 (EC68P)
PT004 (EC78P)

MAIN POWER

TRANSFORMER

VSTBY

+VH

-VH

(AC IN)

RECT

D051, 052

RECT

D607 - 610

RECT

D611, 612

(EC78P)

D629, 630

(EC68P)

I-P-MONI

36

RELAY
DRIVE

Q604

5

7

6

11

13

L+

L-

12

14

R+

R-

R-CH

R-CH

TXD

RXD

DET

LINE
AMP

IC770

• Abbreviation
AUS : Australian
CND : Canadian

X302

6MHz

X1

X0

92 93

X301

32.768kHz

X1A

X0A

14 13

I-RMC

9

REMOTE CONTROL

RECEIVER

IC302

LED DRIVE

Q301

LED301

O-LED-STBY

28

LCD301

LIQUID

CRYSTAL

DISPLAY

ROTARY

ENCODER

S301

VOLUME

SW301, 303 - 308,

SW309, 310

SW311 - 319

(FRONT PANEL KEYS)

I-KEY1, I-KEY2, I-KEY-WAKEUP/VOL

37, 38, 41

COM0 - COM1

59 - 62

SEG0 - SEG32

63, 64, 67 - 89, 94 - 100, 1

I/

STANDBY

HCD-EC68P/EC78P

HCD-EC68P/EC78P

2727

For Schematic Diagrams.

Note:

• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.

• f : internal component.

• 2 : nonfl ammable resistor.

• C : panel designation.

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)

• A : B+ Line.

• B : B– Line.

• C : adjustment for repair.

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.

– CD Board –

no mark

: CD PLAY

– Other Boards –

no mark

: TUNER (FM/AM)

• Voltages are taken with a VOM (Input impedance 10
MΩ).

Voltage variations may be noted due to normal production

tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal production

tolerances.

• Circled numbers refer to waveforms.

• Signal path.

F : FM
f : AM
J : CD PLAY
i : AUDIO IN
g : DMPORT

• Abbreviation

AUS : Australian model
CND : Canadian model

For Printed Wiring Boards.

Note:

• X : Parts extracted from the component side.

• Y : Parts extracted from the conductor side.

• W : indicated side identifi ed with part number.

• f : Internal component.

• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)

• Indication of transistor.

• Circuit Boards Location

The components identifi ed by mark 0 or dotted line with
mark 0 are critical for safety.
Replace only with part number specifi ed.

Caution:

Parts face side:
(Conductor Side)
Pattern face side:
(Component Side)

Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.

C

Q

B

E

Q

B

CE

These are omitted.

These are omitted.

PANEL board

KEY POWER board

KEY CD board

JACK board

MAIN board

HI AMP board (EC78P)

LOW AMP board

PT board

CD board

REG board

DMP board

MOTOR board (EXCEPT EC78P: UK)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

2828

R150

R149

R148

R108

R154

R153

C148

C110

C109

C301

C303

C302

C104

R110

C116

C404

R203

R204

R205

R206

R207

R208

R209

R210

R219

R223

R222

R147

R221

R218

R146

R145

C150

R113

C403

R202

C151

C108

C105

C147

C146

C145

C152

C118

C117

C144

C101

C125

CN201

C143

C120

R144

R157

C142

C141

C140

C100

C107

R408

R156

C124

C127

C126

CN301

R101

C119

C102

R415

R414

C103

R405

C113

R102

R402

R105

R106

C132

C138

C137

R135

R134

R136

R130

R128

R129

R143

R139

C136

R120

R114

C153

C112

R125

R126

C149

C139

R127

R118

R140

R151

C122

C123

R220

R104

S201

R155

C128

C106

C201

R304

R302

C309

C205

C207

C307

R303

C133

R111

R112

C115

R211

Q301

R301

C204

C202

C206

C306

R212

C401

C130

X102

C405

IC201

IC401

IC101

R201

R142

CD BOARD (COMPONENT SIDE)

CD BOARD (CONDUCTOR SIDE)

314

5

17 814

28 22 21 15

TP124

(VC)

TP121

(RFI)

1

25

26

50

5175

76

100

1

21

M

MAIN

BOARD

CN608

161

1-872-135-

11

(11)

1-872-135-

11

(11)

OPTICAL PICK-UP BLOCK

(KSM-213DCP)

A

B

C

D

E

F

123456789

E

(LIMIT)

M401

(SPINDLE)

M402

(SLED)

M

M

6-3. PRINTED WIRING BOARD - CD Board -

• See page 27 for Circuit Boards Location.

(Page 30)

• : Uses unleaded solder.

HCD-EC68P/EC78P

HCD-EC68P/EC78P

2929

R108

R154

R153

C201

R304

R201

R110

R303

R203

R204

R205

R206

R207

R208

R209

R210

R219

R223

R222

R221

R218

R112

R202

R211

Q301

R301

C202

R157

TP121 (RFI)

TP124 (VC)

R156

CN301

R101

C401

R415

R102

R128

R129

R143

R142 R139

R114

R140

R151

R220

R150

R212

IC101

R105

R106

R125

R126

R127

IC201

X102

C301

C307

C309

C100

C138

C153

C151

C204

C130

C128

C113

C127

C126

C103

C102

C120

C118

C117

C101

C124

C125

R145

R146

R147

R148

R149

C149

C105

C143

C146

C145

C148

C104

C405

C404

C403

C205

C116

C133

CN201

C110

R113

R111

C115

R155

C109

C132

R104

C123

C122

C139

C150

R136 R135

R134

C112 C108

R120

R118

C136

C107

R130

R144

C144

C147

C140

C137

C141

C142

C106

R302

C306

C303C302

R405

R402

R408

R414

C207

C152

C206

IC401

0

1M

1M

100
10V

2.2

0

10k

2.2

100

100

100

100

100

100

100

100

100k

100k

100k

100k

100k

100

0

100

2SA2119K

100k

100
10V

100

100

16P

220

220
10V

47k

10k

470k

1k

47k

22k 47k

10k

0

0

100k

0

TK63115SCL-G@GT

0.1

1

0.001

0.1

470p

0.1

470p

0.1

0.1

0.0022

0.1

0.1

0.1

0.01

0.01

0.022
C119

0.022

0.1

0.0047

0.0047

0

0

0

0

0

22p

0.1

0.01

470p

0.01

47p

0.1

0.1

0.1

0.1

0.1

0.1

0.1

0.1

10k

100

22

6.3V

47

0.1

0.1

0

470p

470p

0.01

0.001

22k 470k

1M

0.1 0.1

47p

0.1

4.7k

22k

0.1

0.1

0.01

0.01

0.0022

0.1

100

10V

0

100
10V

1010

10k

2.2k

2.2k

4.7k

1

470p

1

BA5826SFP-E2

SP-

SP+

SL+

SL-

100

1M

1k

0

0

0

16.9344MHz

TC94A70FG-006 (D, HZ

5p

5p

21P

0

100k

IC101

CD-MP3 PROCESSOR

IC401

FOCUS/TRACKING COIL DRIVE,

SLED/SPINDLE MOTOR DRIVE

IC201

+1.5V REGULATOR

SP-

SP+

SL+

SL-

M401

(SPINDLE)

M402

(SLED)

AUTOMATIC POWER

CONTROL

S201

(LIMIT)

(BX5BT/CBX1)

IC B/D

M

MAIN

BOARD

(2/3)

CN608

2

1

IC B/D

OPTICAL
PICK-UP

BLOCK

(KSM-213DCP)

M

M

6-4. SCHEMATIC DIAGRAM - CD Board -

• See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description.

(Page 32)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3030

36

18

1

19

BE

BE

B

E

BE

BE

BE

BE

BE

BE

BE

BE

BE

BE

1

14

15

28

14

8

E

E

5

R601

R603

R604

R605

R606

R607

R608

R609

R801

R802

R803

R804

R610

R805

R611

R806

R612

R807

R613

R808

R614

R809

R615

R616

R617

R618

R619

R810

R811

R812

R813

R814

R620

R815

R621

R816

R622

R817

R623

R818

R624

R819

R625

R626

R627

R628

R629

R820

R821

R822

R823

R824

R630

R825

R631

R826

R632

R827

R633

R829

R637

D791

R639

R830

R831

R832

C603

R640

C604

C605

R836

C606

R837

R643

C607

R838

R644

C608

R839

R645

C609

R646

R647

R648

R649

C803

R840

C804

C610

C805

R841

C611

R842

C806

C612

C807

R843

R844

C808

R650

R845

C809

R651

C615

R846

R652

C616

R847

C617

C618

C619

C810

C811

C814

C815

C816

C817

R660

C819

R663

C629

R666

R667

C820

C821

R669

C824

C826

C827

C633

C828

R670

C634

C829

R672

R673

C637
C638

C639

R676

R677

C830

R678

C831

C832

C834

C640

C835

C836

C642

C837

C838

R681

C645

C647

R684

C648

R685

C649

R686

R687

C840

C841

R689

C843

C844

C650

C845

C846

C652

C847

C848

R690

C654

R691

C655

R692

C656

R693

C657

C658

C659

R696

R697

C850

C660

D601

C662

D602

D603

D604

D605

C666

D606

JR601

JR602

JR603

JR604

JR605

D801

JR606

D802

JR607

D803

JR608

D804

JR609

D805

D806

C674

D614

D617

JR610

D618

JR611

C679

JR612

R759

JR613

JR614

JR615

JR616

JR617

JR618

C680

C681

D621

C682

D622

C683

C684

C685

C686

C687

D628

C689

C690

D631

C691

C692

C693

C694

C695

C696

C699

R700

R704

R706

R707

R708

R709

R715

R716

R720

R722

R727

R728

R729

R731

R732

C700

C703

C704

R749

C713

R750

R751

R742

R702

R701

R741

R752

R753

R754

TP619

R787

R788

R791

R792

Q602

Q603

Q604

Q605

Q606

Q608

Q801

Q802

TP657

Q611

Q612

Q618

Q619

Q622

C788

C789

TP690

Q761

Q762

R761

R762

R763

R768

R769

R770

R771

R772

R773

R774

R775

R776

R777

R778

R779

R780

R781

R782

C791

R783

R784

R785

R786

C786

C787

1

3

5

1

4

2

4

5

1

2

1

8

1

2

8

9

2

1

1

24

5

30

31

20

21

1

2

B

E

15

1

5

1

13

1

3

B

E

TB601

TB602

JW760

JW761

JW762

JW763

JW764

JW765

JW766

JW767

JW768

JW769

JW770

JW771

JW773

JW774

JW775

JW777

JW779

JW780

JW781

CN601

JW782

CN602

JW783

CN603

JW784

CN604

JW785

CN605

1

2

10

11

CN609

JW786

JW787

CN803

CN608

CN801

R634

R635

R636

R638

C602

C601

R641

R642

C802

CN632

CN633

C613

C614

R658

X801

C620

C762

C776

C774

C771

C775

C772

C773

C760

C761

C621

C622

C623

R662

R767

C626

C627

C628

C822

C823

C630

C631

C632

C636

R674

R675

C833

C641

RY601

RY602

RY601,RY602

C644

C646

JW601

JW602

JW603

JW604

JW605

JW606

JW607

JW608

JW609

JW801

C661

JW802

JW803

C663

JW610

JW804

C664

JW611

C665

JW612

JW613

C667

D607

D608

D701

JW615

C669

D609

JW616

JW617

JW618

JW619

D610

C671

D611

D612

C673

JW620

JW621

ET601

C675

D615

ET602

JW622

C676

JW623

JW624

JW625

D619

JW626

JW627

JW628

JW629

D620

JW630

JW631

JW632

JW633

JW634

D629

JW635

JW636

JW637

JW638

JW639

D630

T801

JW640

JW641

JW647

JW649

JW650

JW651

JW652

JW653

JW654

JW655

JW656

JW657

JW658

JW659

JW660

JW661

JW662

JW663

JW664

JW665

JW666

JW667

JW668

JW669

JW670

JW672

JW673

JW674

JW675

JW676

JW677

JW678

JW679

JW680

JW681

JW682

JW683

JW684

JW685

JW686

R717

R718

JW689

R719

JW690

R724

R725

R726

JW697

JW699

C714

JW700

JW701

JW702

JW703

JW704

JW705

Q601

JW706

JW708

JW709

JW710

JW71

1

JW712

JW713

JW715

JW716

JW691

JW687

JW788

JW717

JW718

JW719

L601

L602

L603

L604

L701

JW720

JW721

JW722

JW723

JW724

L801

JW725

CF801

L802

JW726

L803

L804

JW728

Q624

L805

JW729

JW730

JW731

JW732

JW733

JW734

JW735

JW736

JW737

JW738

FL801

JW739

FL803

JW740

JW741

JW742

JW743

JW744

JW750

JW751

JW752

MAIN BOARD

IC602

IC770

IC701

IC801

118

11

1

TP902

TP903

TP904

TP905

TP906

TP907

TP908

TP909

TP910

TP911

TP912

TP913

R904

R905

R906

R907

R908

CN901

DMPORT

CN902

A901

D

J

REG

BOARD

W610

PT
BOARD
CN051

LOW AMP

BOARD

CN104

(CHASSIS)

G

(CHASSIS)

ANTENNA

FM/AM

M601
(FAN)

M

E

HI AMP

BOARD

CN151

L

R

(EC68P)

SPEAKER

IMPEDANCE

USE 6Ω

(EC78P)

SPEAKER

LOW FREQ.

IMPEDANCE

USE 8Ω

SPEAKER
HIGH FREQ.
IMPEDANCE

USE 8Ω

L

R

1-875-488-

14

(14)

C

JACK

BOARD

H

LOW AMP

BOARD

CN102

F

HI AMP

BOARD

CN152

L

PANE L
BOARD
CN301

M

CD BOARD

CN201

(EC78P)

(EC78P)

(EC78P)

1

3

A

B

C

D

E

F

G

H

I

1234567891011

(EC68P)

(EC78P)

1-875-502-

11, 1 2

(11, 12)

11, 1 2

(11, 12)

DMP BOARD

(COMPONENT SIDE)

1-875-502-

DMP BOARD

(CONDUCTOR SIDE)

6-5. PRINTED WIRING BOARDS - MAIN Section -

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

(Page 34)

Ref. No. Location

• Semiconductor
Location

D601 E-2
D602 E-6
D603 E-3
D604 G-3
D605 D-5
D606 E-6
D607 G-5
D608 F-5
D609 G-5
D610 F-5
D611 H-6
D612 H-6
D614 B-6
D615 D-7
D617 D-6
D618 E-6
D619 E-6
D620 E-7
D621 D-5
D622 D-5
D628 D-7
D629 H-6
D630 H-6
D631 E-7
D701 F-7
D791 E-5
D801 B-3
D802 A-4
D803 B-4
D804 B-3
D805 B-2
D806 A-2

IC602 B-7
IC701 F-7
IC770 G-8
IC801 C-4

Q601 D-4
Q602 D-5
Q603 D-5
Q604 G-3
Q605 D-6
Q606 D-5
Q608 B-6
Q611 D-5
Q612 D-6
Q618 D-7
Q619 G-6
Q622 E-6
Q624 E-7
Q761 G-7
Q762 G-7
Q801 B-5
Q802 B-5

(Page 35)

(Page 34)

(Page 28)

(Page 35)

(Page 36)

(Page 38)

(Page 38)

(Page 40)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3131

CN152

BOARD

HI AMP

F

CN151

HI AMP

E

BOARD

BOARD

CN102

LOW

H

AMP

AMP

G

LOW

CN104

BOARD

BOARD

PT

J

CN051

MAIN

(2/3)

BOARD

1

BOARD

REG

W610

D

C

JACK

BOARD

MAIN

(3/3)

BOARD

3

0

8.8

0.4 16.6

16.7

16.7

0

0.8

0.7

8.9

8.8

0

0

8.8

10.8

2.9

2.3

0

8.88.8

0

0

4.2

4.7

0

0.4

0.7

1

2

3

4

5

6

7

8

8P

CN604

RELAY ON/OFF

V STBY

AC DETECT

VH(AC)

VL(AC)

GND

VL(AC)

VH(AC)

100V

C621 0.1

100V

C623 0.1

1N5402-F46D607

1N5402-F46D608

1N5402-F46D610

1N5402-F46

D609

25V

2200

C627

25V

1000

C628

MC2838-T112-1

D602

2SC3052F-T1-LF

Q606

2SC3052F-T1-LF

Q605

2SC3052F-T1-LF

Q604

R646

100

R652

100

R614

10k

R613

10k

R648 47k

R649 2.2k

L602

L601

L603

L604

R606

10

10

R615

10

R612

10R611

10

R647

R608

10

0.1

C607

0.1

C617

0.1

C608

0.1

C618

R631

10

C605

0.1

C616

0.1

R607

10

C615

0.1

C604

0.1

R634

56

R636

56

R635

56

MC2838-T112-1

D601

4.7k

R610

4.7k

R609

1

2

3

3P

CN601

VDD+

GND

VDD+

2SC3052F-T1-LF

Q602

2SC3052F-T1-LF

Q603

1N4002B

D615

2SC3052F-T1-LF

Q619

0.022

C642

56k

R686

10k

R677

10k

R676

16V

100

C631

2SC3052F-T1-LF

Q608

R667

47k

10V

47

C630

1k

R666

25V

47

C601

10V

100

C620

10k

R691

TP601

TP602

TP609

TP612

TP613

TP614

TP615

TP617

TP618

TP619

TP621

TP622

TP623

TP624

TP625

TP626

TP627

TP628

TP629

TP630

TP631

TP632

TP633

TP634

TP635

R622 33k

R617

10k

R623 10k

R624 10k

R618 10k

R625

33k

R616 ∗

R619

R616, 619

3.9k (EC68P)
10k (EC78P: UK)
15k (EC78P: US, CND)

∗

∗

15

R724R725

15

KTA1266GR-AT

Q601

50V

4.7

C632

2.2k

R690

27k

R689

R630 47k

50V

4.7

C614

50V

10

C613

R626

10k

4.7k

R627

15

R726

JW750

1k

R644

R620 4.7k

R621 4.7k

C611 0.22

C612 0.22

100k

R639

100k

R640

R633

100k

R632

100k

MC2838-T112-1

D617

R629

4.7k

R601

470

R650

4.7k

R651

4.7k

R727

4.7k

R728

4.7k

47k

R678

1

C695

1

C696

47

R674

47

R675

100k

R729

C699

1000p

C700

1000p

MAZ8082GMLS0

D622

MAZ8043GMLS0

D621

2SC3052F-T1-LF

Q611

100k

R669

10k

R670

10k

R628

4.7k

R637

0.01

C619

4700p

C629

10k

R672

50V

3.3

C641

ISA1235AC1TP-1EF

Q612

ISA1235AC1TP-1EF

Q618

1

2

3

4

5

5P

CN633

PA-GN D

OUT-R

+VH

-VH

OUT-L

1

2

3

4

5

6

7

8

9

CN605

9P

AUDIO-L

A-GND

AUDIO-R

HP-GND

HP-L

HP-R

AMP-ON

SP-RELAY

GND

1

2

3

4

5

5P

CN602

IN-R

A-GND

IN-L

AMP-ON

PROTECT

1

2

3

4

5

5P

CN603

R603

4.7

1k

R693

4.7k

R692

R673

0

10k

R643

2.2k

R645

C622 ∗

∗C626

2W

470

R658

2W

470

R662

D604

MA2J1110GLS0

D603

MA2J1110GLS0

MA2J1110GLS0

D614

MA2J1110GLS0

D605

MA2J1110GLS0

D628

E

ET601

1

2

3

4

5

5P

CN632

PA-GN D

OUT-R

+VH

-VH

OUT-L

JW751 JW752

MC2836

D606

100k

R604

25V

22

C602

E

ET602

RY602

RY601

2A02MD611

2A02MD612

1k

R663

10V

47

C714

1N4002B

D629

1N4002B

D630

C609

4700p

C610

4700p

C603
4700p

C606
4700p

R638

R641

R642

R605

∗

22k

R687

4.7k

R685

MA2J1110GLS0

D631

100k

R791

220kR792

MA2J1110GLS0

D791

O-POWER

HP-L

HP-R

AMP-R

AMP-L

SP-RELAY

AMP-ON

AUDIO-L

HP-R

HP-L

AMP-L

AMP-R

O-POWER

PROTECT

PROTECT

AMP-ON

SP-RELAY

I-P-MONI

PROTECT

CD-AVR

AUDIO-R

VSTBY

1

3

6

7

2

MAIN BOARD (1/3)

(CHASSIS)

(CHASSIS)

1

OUT

GND

3

IN

+

-

-

+

R

L

TB602

+

-

TB601

L

+

R

-

(FAN)

M

M601

PROTECT

DETECT

56 (EC68P/EC78P: UK)

15 (EC78P: US, CND)

∗R605

Q601, 602

FAN MOTOR DRIVE

STANDBY

SWITCH

PROTECT

DETECT

Q611, 612

RELAY DRIVE

SPEAKER
HIGH FREQ.
IMPEDANCE

USE 8Ω

(EC78P)

(EC78P)

(EC68P)

2200 50V (EC68P)

∗C622, 626

3300 63V (EC78P: US, CND)

3300 50V (EC78P: UK)

Q605, 606

PROTECT DETECT

RELAY DRIVE

DC DETECT

68 68 68

LOW FREQ.

SPEAKER

IMPEDANCE

USE 8Ω

USE 6Ω

IMPEDANCE

SPEAKER

(EC78P)

(EC68P)

711

D

B

1669 1710

F

5 153

G

1 1812

C

E

H

8

J

4 13

A

142

I

IN-R

A-GND

IN-L

AMP-ON

PROTECT

(Page 35)

(Page 35)

(Page 34)

6-6. SCHEMATIC DIAGRAM - MAIN Section (1/3) -

(Page

41)

(Page 34)

(Page

38)

(Page 38)

(Page 32)

(Page 33)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3232

PANE L

BOARD

CN301

L

CD

BOARD

CN201

M

MAIN

1

BOARD

(1/3)

21

IC B/D

IC B/D

MAIN

2

BOARD

(3/3)

2.9 1.2

1.40

2.90

2.20

1.7

02.3

1.62.3

1.80

1.83.6

33.7

2.2

4.22.2

4.84.8

4.74.8

4.7

4.72.4

2.2

0.92.2

AM FREQUENCY

FM TRACKING

COVERAGE

COVERAGE

FM FREQUENCY

AM TRACKING

FM DETECTOR

3.6 3.6

3.63.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

7.4

3.3

3.3

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

3.6

8.8 2.9

4.86.9

3.4

5.5

3.8

3.8

0

3.2

7.2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

21P

CN608

AVDD (3.3V)

R-OUT

DACGND

L-OUT

AGND

RST

BUS0

BUS1

BUS2

BUS3

BUCK

CCE

REQ

SBSY

DGND

D-OUT

DVDD (3.3V)

VM (7V)

MGND

CD DRIVE MUTE

ZDET/LRCKIN

1N4002B

D619

1N4002B

D620

10V

220

C669

100

R722

1kR716

2SC3052F-T1-LF

Q622

22k

R720

10V

470

C673

16V

100

C667

100

R715

50V

1

C663

50V

1

C664

220

R707

220

R706

50V

10

C661

50V

1

C676

50V

1

C675

1C658

1C656

C654

1

C652 1

1C650

1C648

2200pC647

1k

R697

2200pC657

1k

R709

50V1

C644

50V1

C636

50V1C646

50V1C665

TP637

TP639

TP641

TP642

TP643

TP644

TP645

TP646

TP647

TP648

TP649

TP651

TP652

TP654

TP656

TP657

TP658

TP659

TP660

TP661

TP662

TP663

TP664

TP665

TP666

TP667

TP668

TP669

TP670

4.7k

R700

4.7k

R704

10kR696

10kR708

C649

220p

0.1

C679

0.1

C691

0.1

C693

0.1

C694

2200p

C683

2200p

C690

470p

C689

0.01

C692

2200p

C680

2200p

C682

2200p

C681

100

R732

100

R731

MAZ8039GHLS0

D618

0.047

C638

0.047

C637

0.047

C634

0.047

C633

22k

R684

22k

R681

0.022

C674

5.6k

R751

5.6k

R753

R741

1k

R742

1k

4.7k

R749

4.7k

R750

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

31P

CN803

16V

C671

100

C838

1000p

C827

0.047

C820

5p

C816

0.01

22

R804

TP688

R841

10k

10V

220

C833

R809

100

R824

470

R831

2.2k

R810 4.7k

C822 22 50V

TP684

R811

100k

R823 10k

JW802

R844

2.2k

R845

0

R838

22k

22

R808

R830

3.3k

C815 ∗

R802

22

C837

10p

C824

1

C845

0.22

R819

33k

C817 0.01

R837
100k

C803

1

C847

0.1

R816 1k

C835

0.047

R829

4.7k

6

2

1

34

AM IF

T801

R820

4.7k

31 32 33 34 35 36

123456

3029282726

8791011

21 22 23 24 25

12131415

2019

161718

LV23003VA

IC801

AM RF-IN

REG

FM-MIX

GND1

AM-MIX

VCC1

AM IF-IN

FM IF-IN

P-DET

P-COMP

FM-DET

L-OUT

R-OUT

VSS

CE

DI

CL

DO

XIN

XOUT

VDD

MPX-IN

FM DET-OUT

AM DET-OUT

AGC

PD

LP-IN

LP-OUT

BO1

BO2

AM-OSC

FM-OSC

VCC2

FM RF-OUT

GND

FM RF-IN

R827

100k

R840

0

C819
470p

R812

47k

R821

4.7k

C841

1000p

C823
220
10V

R805
470k

16V

100

C802

C830

2p

TP687

16

2

34

5

L805

C831

0.47

R813

470k

CF

G

I

O

FL801

TP690

1

2

34

6

L801

C814

C814, 815

4700p (EC68P: AUS/EC78P: UK)

0.01 (EC68P: US/EC78P: US, CND)

∗

∗

L803

C832 0.47

R842

0

TP686

L804

C848

0.1

R817 47k

R826

1k

R836

6.8k

C844

0.1

SV230-TB-E

D804

C808

18p

C828 100p

2SC3052F-T1-LF

Q801

R814

22k

R807

22k

R815

10k

R806

47k

R825

4.7k

R832

1M

C840

0.1

JW801

C826

1000p

BPF

G

IO

FL803

C829

0.47

R839

10

C804

18p

CF801

C806
470p

R846

10

1

34

6

2

L802

TP689

TP683

TP685

C836

0.022

R818

10k

R843
100k

JW804

C805

0.47

SV230-TB-E

D803

2SC3052F-T1-LF

Q802

C846

0.01

C843

0.1

R801

100

C807

1

R803

2.2k

JW803

C821 2200p

C834

10p

R822

100

R847

0

1

2

3

3P

CN801

AM

GND

FM

X801

75MHz

SVC347A-TL-E

D801

R660 0

68R717

68R718

68R719

KTC3203Y-AT

Q624

C645 1000p

C655

220p

C666 1000p

10pC659

10pC660

1000pC662

0.1

C850

470pC713

C809 1000p

C810 1000p

C811 1000p

2827262524

2322

76

54321

212016 17 18 19

13 12 11 10 89

15

14

BD3499FV-E2

IC602

TC/DMP-R

TC/DMP-L

TUNER-R

TUNER-L

CD-R

CD-L

AUDIO-R

AUDIO-L

SEL-L

SEL-R

VOL-R

VOL-L

TRE-L

TRE-R

BASSB-L

BASSA-L

BASSA-R

BASSB-R

OUT-L

SB-L

SURR

SB-R

OUT-R

VCC

SCLK

SDATA

GND

FIL

2200p

C640

2200p

C639

R788

15k

R787

15k

470pC704

0.068

C684

0.068

C686

0.068

C685

0.068

C687

5.6k

R752

5.6k

R754

2200p

C703

0.015

C789

0.015

C788

1PS226-115

D802

1PS226-115

D805

1PS226-115

D806

CD-R

CD-L

AUDIO-L

AUDIO-R

CD-R

CD-L

TU-DO

TUNER-R

TUNER-L

I/O-BUS2

I/O-BUS0

TUNER-R

O-CD-M-MUTE

O-CD-BUCK

TU-CE

TU-CLK

TU-ANSD

TU-DO

I2C-DATA

I2C-CLK

5V-ON/TP-REC-MUTE

O-POWER

O-CD-M-MUTE

AMP-ON

O-CD-SBSY

O-CD-REQ

O-CD-CCE

O-CD-BUCK

I/O-BUS2

I/O-BUS0

I-P-MONI

O-CD-ON

TU-ANSD

DMP-L

DMP-DET/USB-RST

DMP-DET/USB-RST

TU-DI

O-CD-SBSY

O-CD-CCE

I/O-BUS3

I/O-BUS1

O-CD-RST

O-CD-RST

I/O-BUS1

I/O-BUS3

O-CD-REQ

DMP-DET/USB-RST

TU-CE

TU-DI

TU-CLK

O-CD-ON

I2C-DATA

I2C-CLK

AMP-R

AMP-L

TUNER-L

DMP-R

CD-AVR

10kR701

10kR702

VSTBY

1

3

2

5

4

MAIN BOARD (2/3)

I/O-I2C-DATA

I-TU-DO

I-TU-ANSD

O-TU-CLK

O-TU-DI

O-TU-CE

V-STBY

D-GND

O-CD-ON

I-P-MONI

O-CD-RST

I/O-BUS3

O-CD-BUCK

I/O-BUS0

O-CD-CCE

I/O-BUS1

O-CD-REQ

O-CD-SBSY

I/O-BUS2

O-AMP-ON

M-GND

O-DMP-RXD

I-DMP-5V-DET

I-DMP-TXD

DMP-RXD

DMP-5V-DET

DMP-TXD

NC

O-CD-M-MUTE

I-DMP-DET/O-USB-RST

O-POWER

5V-ON/TP-REC-MUTE

I/O-I2C-CLK

O-SW-ON/I-TP-STATE

INPUT SELECTOR,

IC602

ELECTRICAL VOLUME

AM/FM DET, OSC,

IC801

MIX, PLL, IF AMP

Q622, 624

+3.3V

REGULATOR

ANTENNA

FM/AM

+3V REGULATOR

+5V REGULATOR

711

D

B

6910

F

5 15

L

K

3

G

1 12

C

E

H

8

J

4 13

A

142

I

(Page

31)

6-7. SCHEMATIC DIAGRAM - MAIN Section (2/3) -

• See page 39 for waveforms. • See page 42 for IC Block Diagrams.

(Page 29)

(Page 33)

(Page 37)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3333

IC B/D

(2/3)

BOARD

2

MAIN

3

BOARD

(1/3)

MAIN

18

5.1

1

3.2

5.1

5

0

0

3.2

8.64.3

4.3

4.3

4.3

4.3

4.3

100uH

L701

16V

470

C761

25V

100

C760

4.7kR761

33kR762

1k

R763

50V

1

C771

50V

1

C772

50V

1

C773

50V

1

C774

0.01

C791

10V

47

C775

25V22C776

4.7kR779

4.7k

R780

TP706

TP712

TP713

TP714

TP715

1C786

1C787

33kR781

56kR782

1

2

3

4

5

6

7

8

9

10

11

11P

CN609

PGND

VBUS(5V)

VBUS(5V)

DMP-RXD

DMP-TXD

DMP-DET

DGND

L+

L-

R+

R-

8765

4321

NJM4558V-TE2

IC770

V-

V+

100kR783

100k

R784

100k

R785

100k

R786

22k

R771

22kR772

22k

R773

22k

R774

22kR776

22kR775

22kR777

22k

R778

ISA1235AC1TP-1EF

Q761

10V100C762

DTC114EKA

Q762

R767

2W

0.47

47

R769

47

R759

RK36LF-A4D701

10k

R768

12345

IC BD9701CP-V5

IC701

VCC

OUT

GND

INV

STBY

R770 0

JW788

4

5

7

6

DMP-DET/USB-RST

DMP-TXD

DMP-RXD

DMP-L

5V-ON/TP-REC-MUTE

DMP-R

DMP-5V-DET

-

+

+

-

LINE AMP

IC770

IC701

+5V REGULATOR

VOLTAGE DETECT

Q761, 762

MAIN BOARD (3/3)

711

D

B

6910531 12

C

E

84

A

2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

18P

CN901

PGND

VBUS(5V)

NC

VBUS(5V)

RXD

TXD

DET

DGND

WM DET

NC

L-

R-

L+

R+

WM AX

WM TX

VIDEO

VGND

TP902

TP903

TP904

TP905

TP906

TP907

TP908

TP909

TP910

TP911

TP912

TP913

0R906

0R905

0R904

1

2

3

4

5

6

7

8

9

10

11

11P

CN902

PGND

VBUS(5V)

VBUS(5V)

DMP-RXD

DMP-TXD

DMP-DET

DGND

L+

L-

R+

R-

0R908

0R907

DMP BOARD

DMPORT

6-8. SCHEMATIC DIAGRAM - MAIN Section (3/3) -

(Page 31)

• See page 42 for IC Block Diagrams.

(Page 32)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3434

B

E

BE

Q151

Q152

R151

R152

R153

R154

R155

R156

R159

R160

R161

R162

R163

R164

R171

R172

R173

R175

R176

R177

R178

R181

R182

R183

R184

R185

R186

C153

C154

C155 C156

R195

C159

R196

C160

C161

C162

C166

C173

C174

C175

C176

C178

D151

D152

JR151

1

15

1

6

4

5

1

2

CN151

CN152

R179

R180

C151

C152

C157

C158

C169

C170

JW151

JW152

JW153

JW154

JW155

JW156

JW157

IC151 IC152

(EC78P: US, CND)(EC78P: UK)

E

MAIN

BOARD

CN632

F

MAIN

BOARD

CN602

1-875-496-

14

(14)

HI AMP BOARD

A

B

1234

(1/3)

MAIN

E

CN632

BOARD

MAIN

BOARD

F

CN602

(1/3)

0

0

2

0

0

35.2

0

0

0

0

36.7

-36.8

-35.2

00

0

00

0

C166

4700p

50V

C151

1

50V

C152

1

R175

220

R177

220

R178

220

R176

220

2W

R179

0.22

2W

R180

0.22

R185

2.2k

R186

2.2k

2SA2026

Q151

2SA2026

Q152

MC2838-T112-1

D151

198765432151413121110

STK433-070
(EC78P:UK)

STK433-090-F

(EC78P:US,CND)

IC151

-PRE

-VCC

+VCC

LO+

LO-

RO+

RO-

+PRE

SUB

GND

LI+

LI-

ST-BY

RI-

RI+

C156

100p

C155
100p

C159 3p

C160

3p

C170

C169

100 6.3V

100 6.3V

R173

1k

R164

47k

R163

47k

R155

47k

R156

47k

R151

R151. 152

220 (EC78P: US, CND)

1.8k (EC78P: UK)

∗

∗

R152

∗

C153

470p

C154
470p

C178

0.1

R159

1k

R160

1k

C161

0.01

C162

0.01

0.1

C174

0.1

C173

R172

100

R181

1.2k

R182 1.2k

R183

22k

R184

22k

TP151

TP152

TP153

TP154

TP155

TP156

TP157

TP158

TP159

TP160

R162

470

R161

470

1

2

3

4

5

5P

CN152

PROTECT

AMP-ON

IN-L

A-GND

IN-R

MA2J1110GLS0

D152

1

2

3

4

5

6

6P

CN151

PA-GND

OUT-R

+VH

NC

-VH

OUT-L

50V

C158

1

50V

C157

1

0

R171

470

R196

470

R195

C175

0.1

C176

0.1

R153

22k

R154

22k

OVER LOAD DETECT

Q151,152

HI AMP BOARD

IC151

POWER AMP

IC152

IC152

POWER AMP

7

D

B

69531

C

84

A

2

(EC78P:UK) (EC78P:US,CND)

6-9. PRINTED WIRING BOARD - HI AMP Board (EC78P) -

(Page 30)

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

6-10. SCHEMATIC DIAGRAM - HI AMP Board (EC78P) -

(Page 31)

(Page 30)

(Page 31)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3535

B

E

B

E

Q101

Q102

R101

R102

R103

R104

R105

R106

R107

R108

R109

R110

R111

R112

R113

R114

R122

R123

R125

R126

R127

R128

R131

R132

R133

R134

R135

R136

C103

C104

C105

R142

C106

R145

C109

R146

C110

C116

C123

C124

C125

C126

C128

D101

D103

JR132

1

15

4

5

1

2

15

CN102

CN104

R129

R130

C101

C102

C107

C108

C119

C120

JW131

JW132

JW133

JW134

JW135

JW136

JW137

LOW AMP BOARD

IC101 IC102

(EC68P/EC78P: UK) (EC78P: US,CND)

G

H

MAIN

BOARD

CN603

MAIN

BOARD

CN633

1-875-495-

14

(14)

A

B

1234

G

CN633

BOARD

(1/3)

MAIN MAIN

(1/3)

CN603

BOARD

H

0

-36.8

0

0

-35.2

0

0

0

36.7

0

0

35.2

2

0

0

0

0

00

C116

4700p

50V

1

C101

50V

1

C102

220

R125

220

R127

220

R128

220

R126

2W

0.22

R129

2W

0.22

R130

2.2k

R135

2.2k

R136

2SA2026

Q101

2SA2026

Q102

MC2838-T112-1

D101

C106

100p

C105

100p

3p

C109

3p

C110

∗

C120

C119

∗

1k

R123

47k

R114

47k

R113

47k

R107

47k

R108

25V47

C108

25V47

C107

∗

R103

∗

R104

R105

∗

R106

∗

470p

C103

470p

C104

0.1

C128

1k

R109

1k

R110

0.1

C124

0.1

C123

0

R101

0

R102

22k

R133

22k

R134

1.2kR132

1.2k

R131

R122

100

1

2

3

4

5

5P

CN104

PA- GND

OUT-R

+VH

-VH

OUT-L

TP101

TP102

TP103

TP104

TP105

TP107

TP108

TP109

TP110

TP 111

470

R112

470

R111

1

2

3

4

5

5P

CN102

PROTECT

AMP-ON

IN-L

A-GND

IN-R

MA2J1110GLS0

D103

0

R142

198765432151413121110

STK433-070 (EC78P: UK)

IC101

STK433-060 (EC68P)

IC102

STK433-090-E
(EC78P: US, CND)

(EC78P: US, CND)(EC68P/EC78P: UK)

470

R145

470

R146

C126

0.1

C125

0.1

LOW AMP BOARD

IC101

POWER AMP

IC102

POWER AMP

-PRE

-VCC

+VCC

LO+

LO-

RO+

RO-

+PRE

SUB

GND

LI-

LI+

ST-BY

RI-

RI+

Q101,102

OVER LOAD DETECT

100 63V

100 50V

∗C119, 120

(EC68P)

(EC78P)

∗R103, 104
220 (EC78P: US, CND)

1.8k (EC78P: UK)

3.3k (EC68P)

∗R105, 106

4.7k (EC68P)
22k (EC78P)

B

A

D

C

769531 842

(Page 31)

6-11. PRINTED WIRING BOARD - LOW AMP Board -

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

6-12. SCHEMATIC DIAGRAM - LOW AMP Board -

(Page 30)

(Page 30)

(Page 31)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3636

1

100

30

31

81

80

50

51

B

E

B

E

BE

B

E

BE

B

E

B

E

B

E

BE

B

E

BE

BEBE

BE

BE

B

E

R400

R401

R402

R405

R406

R412

R413

R448

R414

R415

R416

R417

R418

R419

R420

R421

R422

R426

R428

R446

R433

R447

Q301

Q303

Q304

Q305

Q306

Q307

Q308

Q310

Q311

Q312

Q313

Q314

Q315

Q316

Q317

Q318

FB301

R301

R302
R303

R304

R305

R306

R307

R308

R311

R309

R310

R312

R313

R314

R315

R316

R317

R318

R319
R320
R321
R322

R323

R324

R325

R326

R327

R328

R329

R330

R331

R332

R333

R334

R335

R336

R337

R338

R339

C301

R340

C304

C351

R341

R342

R343

R344

C308

R345

R346

R347

R348

R349

C310

C311

C312

C313

R350

C314

R351

C315

R352

C316

R353

C317

R354

R355

C319

R356

R357

R358
R359

C320

C321

C348

C347

R360

R361

R362

R363

R364

C328

R365

R366

R367

R368

R369

C330

C332

R370

R371

R372

R373

R374

C338

R375

R376

R445

R441

R443

D306

R442

R377

R378

R444

R379

C340

C341

C342

R380

SW303 - 305,
SW311 - 319

C344

R381

C345

C353

CN311

R382

C346

R383

R384

R385

R386

R387

R389

C354

R390

C355

R391

C356

R392

R396

D301

D302

D303

D304

D305

D307

JR301

JR302

JR303

JR304

JR305

JR307

R434

R429

R435

JR308

JR309

JR310

JR311

JR313

JR315

SCR1

B

E

E

B

1

37

11

2

31

30

1

212

13

24

15

1

9

32

1

112

12

JW370

JW371

JW372

JW373

JW374

JW375

JW376

JW377

JW378

JW379

JW380

JW381

JW382

JW383

JW384

JW385

JW386

JW387

JW388

JW389

JW390

JW391

JW392

JW393

JW394

JW395

JW396

JW398

JW397

JW399

JW400

JW401

JW402

JW403

JW404

JW405

JW406

Q302

Q309

LED301

SW303

SW303

SW304

SW305

TUNING +

W301

3 1

SW311

SW312

SW313

SW314

SW315

SW316

SW317

SW318

SW319

CN301

CN302

CN303

CN306

C302

C303C305

C306

C309

C357

C352

X301

X302

S301

C343

JW301

JW302

JW303

JW304

JW305

JW306

JW307

JW308

JW309

JW310

JW311

JW312

JW313

JW314

JW315

JW316

JW317

JW318

JW319

JW320

JW321

JW322

JW323

JW324

JW325

JW326

JW328

JW329

JW330

JW331

JW332

JW333

JW334

JW335

JW336

JW337

JW338

JW339

JW340

JW341

JW342

JW343

JW344

JW345

JW346

JW347

JW348

JW349

JW350

JW351

JW352

JW353

JW354

JW355

JW356

JW357

JW358

JW359

JW360

JW361

JW362

JW363

JW364

JW365

JW366

JW367

JW368

JW369

PANEL BOARD

IC301

IC303

IC302

+

–

DSGX

.-

PLAY MODE/

TUNING MODE

FUNCTION

VOLUME

ROTARY
ENCODER

DISPLAY

EQ

-TUNING

/

CD

SW311

(EC68P/EC78P:US,CND)

(EC78P:UK)

(EC68P/EC78P:US,CND)

LCD301

LIQDID CRYSTAL DISPLAY

9

(EC78P)

(EC68P:AUS/EC78P:UK)

Y

.-

L

MAIN

BOARD

CN803

B

KEY

POWER

BOARD

W401

STANDBY

1-875-490-

14

(14)

A

KEY CD
BOARD

Q

MOTOR
BOARD

CN001

CD MECHANISM

DECK

A

B

C

D

E

F

G

123456

(CHASSIS)

(EC68P/EC78P:US,CND)

(Page 39)

(Page 30)

(Page 38)

Ref. No. Location

• Semiconductor
Location

D301 D-4
D302 D-2
D303 D-3
D304 C-4
D305 E-5
D306 E-2
D307 E-3

IC301 B-3
IC302 A-5
IC303 E-2

LED301 A-1

Q301 B-1
Q302 D-4
Q303 D-4
Q304 D-3
Q305 D-2
Q306 D-2
Q307 E-5
Q308 E-5
Q309 E-5
Q310 E-5
Q311 F-5
Q312 F-5
Q313 F-4
Q314 F-4
Q315 F-5
Q316 F-4
Q317 F-4
Q318 F-4

6-13. PRINTED WIRING BOARD - PANEL Board -

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

(Page 38)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3737

B

A

L

(2/3)

CN803

BOARD

MAIN

BOARD

W401

KEY

POWER

CD

KEY

BOARD

31

32

IC B/D

MOTOR
BOARD

Q

CN001

1.3

3.1

1.3

3.1

3.3

2.9

3

1.5

3.3

3.3

0.9

3.3

3.3

0

0

3

2.813.3

3.3

3.3

1.3

3.1

3.1

0

3.3

0

0

3.1

0

0

0

0

1

1.4

3.1

0

0

0

0

0

3.3

0

0

3.1

3.1

3.1

3.1

3.3

3.3

3.1

1.3

1.3

1.3

1.3

1.3

1.3

2.6

0

0

0

3.1

3.1

3.1

0

3.9

0.7

8.1

4.5

0

0

0.7

0.1

5.7

0

3.1

3.3

3.9

7.5

4.94.9

4.8 4.8 4.8

4.94.9

0000

0

5.1

7.1

7.1

8.1 4.9

5.1

7.7

4.9

0

4.8

4.8 4.8 4.84.8

4.8 4.84.8 4.8

3.1

3.1

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.3

1.1

1.3

1.3

1.3

1.3

1.3

1.3

1.3

0

0

7.5

7.5

4.5

4.5

3

2SC3052F-T1-LF

Q304

2SC3052F-T1-LF

Q303

R332

10k

C301

0.1

2SC3052F-T1-LF

Q305

Q306

RT1N441C-TP-1

R337

220

R338

2.2

R339 2.2

R340

4.7k
R342

220k

C308

0.1

R343

470k

Q308

RT1N441C

Q310

2SC3052

C309

50V

22

R346

47k

R347

470

R354

47k

R348

47k

R349

470

R350

47k

R351

470

R352

47k

R353

470

R358

47k

R361

47k

R357 47k

R362

22k

R364

22k

R363

22k

R367

22k

R365

22k

C320 22p

C321

0.1

R327

100

R326

100

R325

10

Q301

2SC3052F-T1-LF

R328

10k

R381

10k

C313

0.22

R380

470

R384

10k

R383

10k

R402

100k

C338 1000p

100R301

R302 100

R303 100

R304 100

R305 100

R306 100

R307

100

R308

100

R309 100

R310 100

R312 100

R313 100

R314 100

R315 100

R316 100

R317 100

R318 100

R319 100

R320 100

R321 100

R322 100

R323

100

C310 0.1

C311

0.1

C312

0.1

C330 0.1

1L0341Y23E0CA602

LED301

Q309

KTA1273

R341

33k

Q317

2SC3440

Q315

2SC3440

Q318

2SC3440

Q316

2SC3440

Q313

2SA1365

Q311

2SA1365

Q314

2SA1365

Q312

2SA1365

KTA1271Y-AT

Q302

R334

10k

R331
100k

C302

10

50V

C341

0.1

R345

4.7k

R344

2.7k

R324 100

R333

100k

R336

10k

C305

10

50V

C303

10

50V

C317

1000p

R369

1k

R370

1k

R371

1k

R372

1k

R374

1k

R385

1k

R386

1k

R387

1k

27k

R419

100kR420

R390

10k

R392

10k

R389

∗

R391

∗

TP301

TP302

TP303

TP304

TP305

TP306

TP307

TP308

TP309

TP310

TP312

TP313

TP314

TP315

TP316

TP317

TP318

TP319

TP320

TP321

TP322

TP323

TP324

TP325

TP326

TP327

TP328

TP329

TP330

TP331

TP333

TP334

TP335

TP336

TP337

TP38

TP339

TP340

TP341

TP343

R329

2.2k

1

2

3

4

5

6

7

8

9

10

11

12

13

13P

CN302

M2-

M2+

M1-

M1+

SW-COM

SW3

SW1

I-CHACK

SW2

I-CLOSE

I-STOCK

I-OPEN

NC

R330

680

R421

10k

50V

C343

22

C314

0.047

C315

0.047

C316

0.047

C328

0.047

MAZ8043GMLS0

D301

R414

2.2k

R376

10k

R377

10k

R379

68k

R382

10k

4.7k

R422

C344

0.047

R335

22k

TP348

R368

10k

R426

100k

R366

10k

R428

47k

1.2k

R405

1.5k

R406

C345

0.047

R375

0

R373

0

1.2k

R412

1.5k

R413R415

2.7k

R416

3.9k

R417

6.8k

R418

15k

0.047C346

Q307

ISA1235

C304

0.1

R360

1k

R359

1k

R356

1k

R355

1k

C306

6.3V

470

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

31P

CN301

R400 1k

R401 1k

C332 0.01

R378

33k

MC2836

D303

178910111256 14 19181713 16 2015 23

24 2721282625

22

31 33 3530 32 363429

234

37

LCD301

4.7k

R446

4.7k

R447

VCC

OUT

GND

NJL24H400B

IC302

1

3

2

MA2J1110GLS0

D305

MA2J1110GLS0

D302

MA2J1110GLS0

D304

FB301

C342

1000p

4700p

C354

4700p

C355

C356

0.1

32.768kHz

X301

C319

18p

R396

330k

S301

2

31

6MHz

X302

12345678

9101112131415161718192021222324252627282930

31

32 33

34 35 363738 39

40

41

42

434445 464748

49 50

51 52 53 54 55 56 57

58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

81

8283

84

85868788

89

90

91

9293

94

9596

97

98

99

100

IC301

SEG32

O-AMP-ON

O-POWER

O-CD-ON

I-3CD-SW3/O-CDM-CLOSE

I-3CD-SW2/NC

I-3CD-SW1/O-CDM-OPEN

O-3CD-M1+/O-CDM-M1+

I-RMC

O-3CD-M1-/O-CDM-M1-

O-3CD-M2+/NC

O-3CD-M2-/NC

X0A

X1A

VCC

VSS

I/O-CD-BUS0

I/O-CD-BUS1

I/O-CD-BUS2

I/O-CD-BUS3

I-3CD-CHACK

I-3CD-STOCK

O-DR-MUTE

I-REQ

O-CD-BUCK

O-CD-CCE

O-CD-RST

O-LED-STBY
I-USB-TXD/
I-DMP-TXD
I-USB-DO/
I-DMP-5V-DET

O-USB-RXD/
O-DMP-RXD

AVCC

I-TU-DO

O-USB-DI/5V-ON/O-TP-REC-MUTE

AVSS

I-P-MONI

I-KEY1

I-KEY2

I-TU-ANSD

O-USB-SEL1_2/O-SW-ON/I-TP-STATE

I-KEY-WAKE-UP/VOL

I-HOLD

O-CD-SBSY

GND

I-DMP-DET/O-USB-RST

I-MODEL

I-SUFFIX

I-1CD-CLOSE_OPEN/NC

I/O-I2C-DATA

I/O-I2C-CLK

MD2

MD1

MD0

I-RST

O-TU-CE

O-TU-CLK

O-TU-DI

VLCD

COM0

COM1

CMO2

CMO3

SEG0

SEG1

VCC

VSS

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

VCC

VSS

X1

X0

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG31

C340 0.1

1

2

CN303

2P

KEY-1

GND

R429

10k

1

2

2P

CN306

1

KEY-0

GND

I/O-BUS0

I/O-BUS1

I/O-BUS2

I/O-BUS3

O-CD-BUCK

O-CD-CCE

I-REQ

O-CD-SBSY

O-AMP-ON

O-DR-MUTE

O-POWER

I/O-I2C-CLK

I/O-I2C-DATA

I-TU-DO

I-TU-ANSD

O-TU-CLK

O-TU-DI

O-TU-CE

I-P-MONI

O-CD-RST

I-SW2

I-CHACK

I-SW1/CDM-OPEN

COM1

COM2

COM3

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

SEG25

SEG26

SEG27

SEG28

SEG29

SEG30

SEG31

O-M2-

O-M2+

O-M1-/CDM-M-

I-HOLD

O-AMP-ON

O-CD-ON

O-M2-

LED-STBY

O-CD-BUCK

O-CD-CCE

M2+

M1-

I-REQ

O-DR-MUTE

R311 100

I-DMP-DET/O-USB-RST

SEG32

5V-ON/O-TP-REC-MUTE

SEG32

I-CLOSE/OPEN

I-CLOSE/OPEN

I-STOCK

O-CD-RST

I-DMP-5V-DET

I-DMP-TXD

I-RST

SEG15

SEG14

SEG13

SEG12

SEG11

SEG10

SEG9

SEG8

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

COM3

COM2

COM1

COM0

O-TU-CLK

O-TU-CE

SEG31

SEG30

SEG29

SEG28

SEG27

SEG26

SEG25

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG23

SEG24

5V-ON/O-TP-REC-MUTE

O-CD-SBSY

O-CD-ON

O-POWER

COM0

I-STOCK

I-CHACK

I/O-BUS0

I/O-BUS1

I/O-BUS2

I/O-BUS3

I-SW1/CDM-OPEN

O-M2+

O-M1+/CDM-M+

O-M1-/CDM-M-

I-RMC

I-SW2

LED-STBY

O-M1+/CDM-M+

O-SW-ON/I-TP-STATE

R433 470

R434

470

R435 470

TP344

TP345

TP346

I-DMP-5V-DET

I-DMP-TXD

O-DMP-TXD

M1+

M1-

I-SW3/CDM-CLOSE

I-KEY-WAKE-UP/VOL

M2-

M1+

I-MODEL

I-SUFIX

I-RMC

I-TU-DO

I-KEY1

I-KEY2

I-TU-ANSD

I-KEY-WAKE-UP/VOL

I-HOLD

I-SUFIX

I-MODEL

I/O-I2C-DATA

I-DMP-DET/O-USB-RST

I/O-I2C-CLK

I-SW3/CDM-CLOSE

M2+

O-TU-DI

I-RST

10k

R448

I-P-MONI

O-DMP-RXD

O-SW-ON/I-TP-STATE

M2-

I-KEY2

I-KEY1

470pC347

C348 470p

REMOTE CONTROL

IC302

SW311SW312SW313SW314SW315SW316SW317SW318

SW319

DISPLAY

PANEL BOARD

SYSTEM CONTROLLER

MB90F831PF-G-SPE1

IC301

LIQUID CRYSTAL DISPLAY

W301

O-TU-CE

O-TU-DI

O-TU-CLK

I-TU-ANSD

I-TU-DO

I/O-I2C-DATA

O-SW-ON/I-TP-STATE

I/O-I2C-CLK

5V-ON/TP-REC-MUTE

O-POWER

I-DMP-DET/O-USB-RST

O-CD-M-MUTE

O-AMP-ON

O-CD-SBSY

O-CD-REQ

O-CD-CCE

O-CD-BUCK

I/O-BUS3

O-CD-RST

I-P-MONI

O-CD-ON

D-GND

V-STBY

M-GND

28

29

30

31

I-DMP-TXD

I-DMP-5V-DET

O-DMP-RXD

NC

I/O-BUS2

I/O-BUS1

I/O-BUS0

STANDBY

/

LED DRIVE

Q302-304

+4V REGULATOR

Q305,306

VOLTAGE DETECT

Q311-318

MOTOR DRIVE

∗R389
1k (EC68P/EC78P: US, CND)

5.6k (EC78P: UK)

∗R391
1k (EC78P: UK)

2.2k (EC68P: AUS)

(EC68P/EC78P: US, CND)

(EC68P: AUS/EC78P: UK)

(EC78P)

(CHASSIS)

REGULATOR

Q307-310

CD

DECK

MECHANISM

RECEIVER

ROTARY ENCODER

VOLUME

-

TUNING +

SW305

FUNCTION

SW304

SW303

- TUNING

DSGX EQ

PLAY MODE

TUNING MODE

+

CD

711

D

B

1669 1710

F

5 15

L

K

3

G

1 12

C

E

H

8

J

4 13

A

142

I

M

12 9876543

BA6956AN

IC303

VREF

OUT2

RNF

OUT1VMVCC

FIN

GND

RIN

C351

0.1

C352

50V

10

C353

0.1

1N4002B

D306

R444

4.7k

R445

4.7k

R441 39k

R442 22k

R443

10k

50V

C357

22

MA2J1110GLS0

D307

1

2

3

4

5

5P

CN311

M+

M-

DGND

CLOSE SW

OPEN SW

O-M1-/CDM-M-

O-M1+/CDM-M+

IC303

MOTOR DRIVER

(EC68P/EC78P: US, CND)

(EC78P: UK)

(Page 32)

6-14. SCHEMATIC DIAGRAM - PANEL Board -

• See page 39 for waveforms. • See page 42 for IC Block Diagrams. • See page 43 for IC Pin Function Description.

(Page 39)

(Page 38)

(Page 38)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3838

PAN EL

CN303

BOARD

A

(1/3)

BOARD

C

MAIN

CN605

MAIN

D

BOARD

(1/3)

PAN EL

CN306

BOARD

B

17.1 8.9

R407

2.2k

TP415

TP416

R408

2.7k

R409

3.9k

R410

6.8k

R411

15k

KEY CD BOARD

DISC 1

SW306SW307

DISC 2

SW308

DISC 3

CDDMPORT

SW309SW310

DISC SKIP/

EX-CHANGE

KEY-1

GND12

J491

AUDIO IN

C491

0.1

C495

1000p

C496

1000p

TP491

TP492

TP493

TP494

TP495

TP496

TP497

TP498

J492

PHONES

R491

22k

R492

22k

JACK BOARD

1

A-GND

AUDIO-L

HP-GND

AUDIO-R

HP-R

HP-L

SP-RELAY

AMP-ON

9GND

0.1

C698

IO

G

TA7809S

IC601

1

3

2

REG BOARD

+9V REGULATOR

IC601

TP409

TP410

1

2

3

3P

W401

KEY-0

GND

KEY-SW-ON

(NC)

KEY POWER BOARD

STANDBY

SW301

/

B

531

C

D

E

F

G

4

A

2

3

2

1

3P

W610

OUT

GND

IN

(EC68P/EC78P: US, CND)

(EC78P: UK)

(Page 37)

(Page 31)

6-16. SCHEMATIC DIAGRAM - KEY Section -

(Page 37)

(Page 31)

6-15. PRINTED WIRING BOARDS - KEY Section -

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

(Page 36)

(Page 36)

(Page 30)

(Page 30)

1234 5

A

KEY CD BOARD

B

(EC68P/EC78P:US,CND)

(EC78P:UK)

SW309

;

SW308

R410

DISC 3

;

SW309

R409

PANE L

BOARD

A

CN303

12

SW307

C

JACK BOARD

C

D

19

R491

R492

J491

AUDIO IN

C491

JW491

E

MAIN

BOARD

CN605

C496

J492

PHONES

14

(14)

1-875-493-

C495

B

PANE L

BOARD

CN306

(NC)

SW310

DISC SKIP/

EX-CHANGE

R411

SW306

R408

SW301

STANDBY

SW301,

SW306 - 310

14

(14)

SW307

DISC 2

DMPORT CD

(EC68P/EC78P:US,CND)

KEY POWER BOARD

3

W401

1

REG BOARD

2

1

3

IC601

C698

JW614

W610

13

1-875-489-

MAIN

D

BOARD

SW306

R407

DISC 1

(EC68P/EC78P:US,CND)

1-875-491-

14

(14)

1-875-492-

14

(14)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

3939

CN001

S001

A

B

1234567

1-866-548-

21

(21)

MOTOR BOARD

Q

PANEL BOARD

CN311

DISC TRAY

OPEN/CLOSE

DETECT

OPEN 5CLOSE

M

M001

(LOADING)

(Page 37)

6-17. PRINTED WIRING BOARD - MOTOR Board (EC68P/EC78P: US, Canadian models) -

6-18. SCHEMATIC DIAGRAM - MOTOR Board (EC68P/EC78P: US, Canadian models) -

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

• Waveforms
– CD Board –

– MAIN Board –

– PANEL Board –

(Page 36)

IC101 JB (RFi)



(CD play mode)

IC801 RM (XIN)

XB

IC301 RG (X1A)

FB

200 mV/DIV, 500 ns/DIV

IC101 XG (XO)



(CD play mode)

0.5 to 1.3 Vp-p

59.1 ns

1 V/DIV, 20 ns/DIV

3.3 Vp-p

13.3 μs

500 mV/DIV, 5 μs/DIV

1 Vp-p

IC301 PT (X1)

FT

3 Vp-p

30.5 μs

1 V/DIV, 10 μs/DIV

3 Vp-p

166 ns

1 V/DIV, 50 ns/DIV

M001

(LOADING)

S001

CD TRAY

OPEN/CLOSE

DETECT

CLOSE

OPEN

CLOSE

DGND

CLOSE SW

OPEN SW

OPEN

CN001

Q

PAN EL

BOARD

5P

CN311

HCD-EC68P/EC78P

HCD-EC68P/EC78P

4040

C051

C052

D051

D052D055

1

8

13

CN051

CN053

RY001

RY001

RY002

RY002

JW004

JW007

JW008

JW009

JW010

JW011

JW012

JW013

JW014

JW015

JW016

JW017

JW018

JW019

JW020

W001

PT BOARD

∗

NOT REPLACEABLE:
BUILD IN TRANSFORMER

∗

PT001 (EC68P:US/EC78P)

(EC68P:US/EC78P)

(EC68P:US/EC78P)

(EC68P:US/EC78P)

PT002 (EC68P:AUS)

SUB POWER TRANSFORMER

(EC68P:AUS)

(EC68P:AUS)

(EC68P:AUS)

(EC68P:AUS)

(EC68P:AUS)

(AC IN)

PT003(EC68P)
PT004(EC78P)

MAIN POWER

TRANSFORMER

J

MAIN

BOARD

CN604

1-875-494-

14

(14)

B

C

D

E

F

12345

A

(CHASSIS)

(Page 30)

6-19. PRINTED WIRING BOARD - PT Board -

• : Uses unleaded solder.

• See page 27 for Circuit Boards Location.

HCD-EC68P/EC78P

HCD-EC68P/EC78P

4141

(1/3)

J

MAIN

BOARD

CN604

C051

0.1

MC2836

D051

MC2838-T112-1

D052

RY001

1

2

3

4

5

6

7

8

8P

CN051

RELAY ON/OFF

V STBY

AC DETECT

VH(AC)

VL(AC)

GND

VL(AC)

VH(AC)

RY002

MC2838-T112-1

D055

JW004

JW009

JW007

JW008

1

3

3P

CN053

LIVE

NEUTRAL

PT002

PT003

3

11

12

13

14

5

10

2

4

6

PT004

3

11

12

13

14

1

5

10

2

4

6

1

3

4

5

6

7

8

9

2

PT001

0.1

C052

PT BOARD

(EC68P: AUS)

(EC68P:AUS)

(EC68P:AUS)

(EC68P: US/EC78P)

(EC68P: US/EC78P)

(AC IN)

SUB POWER TRANSFORMER

SUB POWER TRANSFORMER

MAIN POWER TRANSFORMER

MAIN POWER TRANSFORMER

(EC68P)

(EC78P)

∗

∗

∗NOT REPLACEABLE:

BUILD IN TRANSFORMER

W001

(CHASSIS)

711

D

B

6910

F

53

G

1 12

C

E

84 13

A

2

1

3

4

5

6

7

8

9

2

1

(EC68P: AUS)

6-20. SCHEMATIC DIAGRAM - PT Board -

(Page 31)

HCD-EC68P/EC78P

HCD-EC68P/EC78P

4242

• IC Block Diagrams
– CD Board –

IC201 TK63115SCL-G@GT

IC401 BA5826SFP-E2

– MAIN Board –

IC602 BD3499FV-E2

IC701 BD9701CP-V5

IC801 LV23003VA

1

AM RF-IN

3

FM-MIX

2

REG

6

VCC1

4

GND1

AM

RF

AM
MIX

AM

DET

AM

IF

FM

DET

FM

IF

SD

FF

VCO

FF

FF

ST

TRIG

STSW

FM

MIX

FM

OSC

AM

OSC

OSC

BUFFER

FM

S-METER

DECODER

PHASE

COMPARATOR

MUTE

PROGRAMMABLE

DIVIDER

REFERENCE

DIVIDER

UNLOCK

DETECTOR

SWALLOW
COUNTER

POWER ON

RESET

DATA SHIFT

REGISTER

LATCH

PHASE

DETECTOR

CHARGE

PUMP

UNIVERSAL

COUNTER

5

AM-MIX

7

AMIF-IN

8

FMIF-IN

9

P-DET

10

P-COMP

11

FM-DET

12

L-OUT

13

R-OUT

14

VSS

FM
RF

36

FM RF-IN

35

GND2

34

FMRF-OUT

33

VCC2

30

BO2

29

BO1

32

FM-OSC

31

AM-OSC

28

LP-OUT

27

LP-IN

23

FMDET-OUT

15

CE

16

DI

17

CL

18

DO

22

MPX-IN

19

XIN

20

XOUT

21

VDD

26

PD

25

AGC

24

AMDET-OUT

LOW-PASS

FILTER

AGC

IF

BUFFER

PIROT

DET

CCB

I/F

1 2 3 4 5 6 7 8 9

CONTROL LOGIC

TSD

VREF

OUT2

OUT1

RNF

VM

VCC

FIN

GND

RIN

– PANEL Board –

IC303 BA6956AN

1

VIN

THERMAL &

OVER CURRENT

PROTECTION

VOLTAGE

REFERENCE

ON/OFF

CONTROL

2

GND

3NC4

VCONT

28

27

26

25

24

23

22

21

20

19

18

17

16

15

GND

VO4(–)

VO4(+)

IN4

IN4'

BIAS

VCC

VCC

IN3'

IN3

VO3(+)

VO3(–)

RESETt

OPIN

1

VO1(–)

VO1(+)

–
+

VOUT

5

RESET

REGB

REGOUT

MUTE

VO2(+)

VO2(–)

OPOUT

GND

IN2'

GND

D.BUFF

2

D.BUFF

3

IN1

4

THERMAL
SHUT-DOWN
REGULATOR

BIAS TRAP

5

6

MUTE

7

8

9

IN2

10

D.BUFF

11

D.BUFF

12
13

14

LEVEL
SHIFT

REGULATOR

LEVEL
SHIFT

LEVEL

SHIFT

LEVEL
SHIFT

D.BUFF

D.BUFF

VCC

VCC

D.BUFF

D.BUFF

1A1

VOL1
VOL2

2A2
3B1
4

B2

5C1
6C2
7D1
8D2

9SEL2

10SEL1

11
12

13TC2
14TC1

SELECTOR

INVERTER

VOLUME

INPUT

INPUT

GAIN

TREBLE/

BASS

PC BUS

SURROUND

LOGIC

28 FIL
27 GND

26

SDA

25

SCL

24 VCC

23 OUT1

22 SB1
21 SR
20 SB2

19 OUT2

18 BCB1
17 BCA1
16 BCA2
15 BCB2

REGULATOR

VOLTAGE

REFERENCE

1

VCC

STANDBY

2

3

4

5

INV

OUT

GND

STBY

HCD-EC68P/EC78P

• IC Pin Function Description
CD BOARD IC101 TC94A70FG-006 (D, HZ (CD-MP3 PROCESSOR)

Pin No. Pin Name I/O Description

1 AVSS3 - Ground terminal

2 RFZi I RF ripple zero crossing signal input terminal

3 RFRP O RF ripple signal output terminal

4 SBAD/RFDC O Sub beam addition signal or RF peak detection signal output terminal Not used

5 FEi O Focus error signal output terminal Not used

6 TEi O Tracking error signal output terminal

7 TEZi I Tracking error zero crossing signal input terminal

8 AVDD3 - Power supply terminal (+3.3 V)

9 FOo O Focus coil drive signal output terminal

10 TRo O Tracking coil drive signal output terminal

11 VREF I Reference voltage (+1.65V) input terminal

12 FMo O Sled motor drive signal output terminal

13 DMo O Spindle motor drive signal output terminal

14 VSSP3 - Ground terminal

15 VCOi I VCO control voltage input terminal

16 VDDP3 - Power supply terminal (+3.3 V)

17 VDD1 - Power supply terminal (+1.5 V)

18 VSS - Ground terminal

19 FGiN I FG signal input terminal Not used

20 IO0 (/HSO) I Disc inner position detection signal input terminal

21 IO1 (/UHSO) O Not used

22 XVSS3 - Ground terminal

23 XI I System clock input terminal (16.9344 MHz)

24 XO O System clock output terminal (16.9344 MHz)

25 XVDD3 - Power supply terminal (+3.3 V)

26 DVSS3 - Ground terminal

27 RO O Audio data (R-ch) output to the input selector

28 DVDD3 - Power supply terminal (+3.3 V)

29 DVR O Reference voltage (+1.65V) output terminal

30 LO O Audio data (L-ch) output to the input selector

31 DVSS3 - Ground terminal

32 VDDT3 - Power supply terminal (+3.3 V)

33 VSS1 - Ground terminal

34 VDD1 - Power supply terminal (+1.5 V)

35 VDDM1 - Power supply terminal (+1.5 V)

36 SRAMSTB I S-RAM standby mode control signal input terminal Fixed at "L" in this set

37 XRST I Reset signal input from the system controller "L": reset

38, 39 BUS0, BUS1 I Serial data input from the system controller

40 BUS2 (SO) I Serial data input from the system controller

41 BUS3 (SI) I Serial data input from the system controller

42 BUCK (CLK) I Serial data transfer clock signal input from the system controller

43 XCCE I Chip enable signal input from the system controller

44 TEST I Setting terminal for test mode Normally fi xed at "L"

45 IRQ I Interrupt request signal input terminal Not used

46 AoUT3 (PO4) O Request signal output terminal Not used

47 AoUT2 (PO5) O Audio data output terminal Not used

48 PIO0 O Request signal output to the system controller

49, 50 PIO1, PIO2 O Not used

51 PIO3 I Gate signal input terminal Not used

52 VSS1 - Ground terminal

53 VDDT3 - Power supply terminal (+3.3 V)

54 SBSY O Subcode block sync signal output to the system controller

55 SBOK/FOK O Not used

56 IPF O Not used

57 SFSY/LOCK O Not used

58 ZDET O Zero detection signal output terminal Not used

59 GPIN I Not used

60 MS I Microcomputer interface mode selection signal input terminal Fixed at "H" in this set

43

HCD-EC68P/EC78P

Pin No. Pin Name I/O Description

61 DOUT (PO6) O Digital audio data output terminal Not used

62 AOUT (PO7) O Audio data output terminal Not used

63 BCK (PO8) O Bit clock signal output terminal Not used

64 LRCK (PO9) O L/R sampling clock signal output terminal Not used

65 AIN (PI4) I Digital audio data input terminal Not used

66 BCKi (PI5) I Bit clock signal input terminal Not used

67 LRCKi (PI6) I L/R sampling clock signal input terminal Not used

68 VDD1 - Power supply terminal (+1.5 V)

69 VSS - Ground terminal

70 AWRC - Not used

71 PVDD3 - Power supply terminal (+3.3 V)

72 PDO O Phase error margin signal between EFM signal and PLCK signal output terminal

73 TMAXS O TMAX detection signal output terminal Not used

74 TMAX O TMAX detection signal output terminal

75 LPFN I Inverted signal input from the operation amplifi er for PLL loop fi lter

76 LPFo O Signal output from the operation amplifi er for PLL loop fi lter

77 PVREF I Reference voltage (+1.65V) input terminal

78 VCOF O VCO fi lter output terminal

79 PVSS3 - Ground terminal

80 SLCo O EFM slice level output terminal

81 RFi I RF signal input terminal

82 RFRPi I RF ripple signal input terminal

83 RFEQo O EFM slice level output terminal

84 VRo O Reference voltage (+1.65V) output terminal

85 RESiN O External resistor connection terminal

86 VMDiR O Reference voltage (+1.65V) output terminal for automatic power control circuit

87 TESTR O Low-pass fi lter terminal for RFEQO offset correction

88 AGCi I RF signal amplitude adjustment amplifi cation input terminal

89 RFo O RF signal generation amplifi cation output terminal

90 RVDD3 - Power supply terminal (+3.3 V)

91 LDo O

92 MDi I Light amount monitor input from the laser diode of optical pick-up block

93 RVSS3 - Ground terminal

94 FNi2 (C) I Main beam (C) input from the optical pick-up block

95 FNi1 (A) I Main beam (A) input from the optical pick-up block

96 FPi2 (D) I Main beam (D) input from the optical pick-up block

97 FPi1 (B) I Main beam (B) input from the optical pick-up block

98 TPi (F) I Sub beam (F) input from the optical pick-up block

99 TNPC O External capacitor connection terminal

100 TNi (E) I Sub beam (E) input from the optical pick-up block

Laser diode on/off control signal output to the automatic power control circuit
"H": laser diode on

44

HCD-EC68P/EC78P

PANEL BOARD IC301 MB90F831PF-G-SPE1 (SYSTEM CONTROLLER)

Pin No. Pin Name I/O Description

1 SEG32 O Segment drive signal output to the liquid crystal display

2 O-AMP-ON O Relay drive signal output terminal (for speaker)

3 O-POWER O Main power on/off control signal output terminal "H": on

4 O-CD-ON O CD power on/off control signal output terminal "H": on

I-3CD-SW3/O-CDM-

5 to 7

8

9 I-RMC I Remote control signal input from the remote control receiver

10

11, 12

13 X0A I Sub system clock input terminal (32.768 kHz)

14 X1A O Sub system clock output terminal (32.768 kHz)

15 VCC - Power supply terminal (+3.1V)

16 VSS - Ground terminal

17 to 20

21 I-3CD-CHACK I Disc chucking detection switch input from the CD mechanism deck (EC78P: UK model)

22 I-3CD-STOCK I Disc stocking detection switch input from the CD mechanism deck (EC78P: UK model)

23 O-DR-MUTE O Muting signal output to the motor/coil driver

24 I-REQ I Request signal input from the CD-MP3 processor

25 O-CD-BUCK O Serial data transfer clock signal output to the CD-MP3 processor

26 O-CD-CCE O Chip enable signal output to the CD-MP3 processor

27 O-CD-RST O System reset signal output to the CD-MP3 processor "L": reset

28 O-LED-STBY O LED drive signal output terminal for STANDBY indicater

29 I-USB-TXD/I-DMP-TXD I Serial data input from the DMPORT connector

30

31

32 AVCC - Power supply terminal (+3.1V)

33 I-TU-DO I Serial data input from the AM/FM DET

34

35 AVSS - Ground terminal

36 I-P-MONI I Power monitor signal input terminal

37, 38 I-KEY1, I-KEY2 I Front panel key input terminal (A/D input)

39 I-TU-ANSD I Power monitor signal input terminal

40

41 I-KEY-WAKE-UP/VOL I System wake up signal input terminal

42 I-HOLD I Hold signal input terminal

43 O-CD-SBSY I Subcode block sync signal input from the CD-MP3 processor

44 GND - Ground terminal

45

46 I-MODEL I Model setting terminal

47 I-SUFFIX I Suffi x setting terminal

48

49 I/O-I2C-DATA I/O Two-way serial data bus with the electrical volume

50 I/O-I2C-CLK O Serial data transfer clock signal output to the electrical volume

51 to 53 MD2 to MD0 - Not used

54 I-RST I

55 O-TU-CE O Chip enable signal output to the FM/AM DET

56 O-TU-CLK O Serial data transfer clock signal output to the FM/AM DET

CLOSE, I-3CD-SW2/

NC, I-3CD-SW1/

O-CDM-OPEN

O-3CD-M1+/
O-CDM-M1+

O-3CD-M1-/
O-CDM-M1-

O-3CD-M2+/NC,

O-3CD-M2-/NC

I/O-CD-BUS0 to

I/O-CD-BUS3

I-USB-DO/

I-DMP-5V-DET

O-USB-RXD/

O-DMP-RXD

O-USB-DI/5V-ON/

O-TP-REC-MUTE

O-USB-SEL1_2/O-SW-

ON/I-TP-STATE

I-DMP-DET/
O-USB-RST

I-1CD-CLOSE_OPEN/

NC

I Detection switch input terminal

O Motor drive signal output terminal

O Motor drive signal output terminal

O Motor drive signal output terminal

O Serial data output to the CD-MP3 processor

I Power voltage detection signal input terminal

O Serial data output to the DMPORT connector

O Power on/off control signal output terminal

I Tape syate detection signal input terminal Not used

I DMPORT connector detection signal input terminal

I CD table open/close detection signal input terminal (EC78P: UK model)

Reset signal input from the voltage detect "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"

45

HCD-EC68P/EC78P

Pin No. Pin Name I/O Description

57 O-TU-DI O Serial data output to the FM/AM DET

58 VLCD -

59 to 62

63, 64 SEG0, SEG1 O Segment drive signal output to the liquid crystal display

65 VCC - Power supply terminal (+3.1V)

66 VSS - Ground terminal

67 to 89 SEG2 to SEG24 O Segment drive signal output to the liquid crystal display

90 VCC - Power supply terminal (+3.1V)

91 VSS - Ground terminal

92 X1 I Main system clock output terminal (6 MHz)

93 X0 O Main system clock input terminal (6 MHz)

94 to 100 SEG25 to SEG31 O Segment drive signal output to the liquid crystal display

COM0, COM1, CMO2,

CMO3

Terminal for doubler circuit capacitor connection to develop liquid crystal display drive volt­age

O Common drive signal output to the liquid crystal display

46

Note:

• -XX and -X mean standardized parts, so
they may have some difference from the
original one.

• Items marked “*” are not stocked since
they are seldom required for routine ser­vice.

Some delay should be anticipated when

ordering these items.

• The mechanical parts with no reference
number in the exploded views are not sup­plied.

7-1. PANEL SECTION

SECTION 7

EXPLODED VIEWS

• Color Indication of Appearance Parts Ex­ample:

KNOB, BALANCE (WHITE) . . . (RED)
R R

• Accessories are given in the last of the
electrical parts list.

• Abbreviation

AUS : Australian model
CND : Canadian model

Parts of Color Cabinet’s Color

HCD-EC68P/EC78P

The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.

Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifi é.

3

5

6

6

#1

2

#5

6

#5

chassis section

front panel section

1

#1

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

1 3-276-203-01 DOOR (CD) (EC78P: UK)
1 3-283-114-01 DOOR (1CD) (EC68P/EC78P: US, CND)
2 3-363-099-32 SCREW (CASE 3 TP2)
3 2-890-831-01 PANEL (L), SIDE (EC68P: US/EC78P: US, CND)
3 2-890-831-11 PANEL (L), SIDE (EC68P: AUS/EC78P: UK)

4 2-890-830-01 PANEL (R), SIDE (EC68P: US)
4 2-890-830-11 PANEL (R), SIDE (EC68P: AUS/EC78P: UK)

4 2-890-830-21 PANEL (R), SIDE (EC78P: US, CND)
5 2-890-829-01 PANEL (TOP) (EC68P: US/EC78P: US, CND)
5 2-890-829-11 PANEL (TOP) (EC68P: AUS/EC78P: UK)

6 3-254-143-11 SCREW (B3), (+) BV TAPPING
#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#5 7-685-247-14 SCREW +KTP 3X10 TYPE2 NON-SLIT

4

2

47

HCD-EC68P/EC78P

7-2. FRONT PANEL SECTION

52

55

53

not supplied

54

not supplied
(KEY POWER board)

not supplied

not
supplied

56

57

58

not supplied
(KEY CD board)

not supplied
(JACK HOLD board)

not supplied
(JACK board)

56

56

56

59

56

60

56

61

62

64

51

DMP board

63

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

51 3-276-202-01 KNOB (VOL)
52 3-276-204-01 RING (VOL) (EC78P: UK)
52 3-276-204-11 RING (VOL) (EC68P/EC78P: US, CND)
53 3-276-201-01 PLATE, ORNAMENTAL (EC78P: UK)
53 3-285-284-01 PLATE, ORNAMENTAL (1CD)

(EC68P/EC78P: US, CND)

54 3-276-198-01 WINDOW (EC68P: AUS)
54 3-276-198-31 WINDOW (EC68P: US)
54 3-276-198-11 WINDOW (EC78P: US, CND)
54 3-276-198-71 WINDOW (EC78P: UK)
55 A-1452-956-A FRONT PANEL ASSY (EC68P: US)

55 A-1452-957-A FRONT PANEL ASSY (EC68P: AUS)
55 A-1418-862-A PANEL ASSY, FRONT (EC78P: UK)

55 A-1418-863-A PANEL ASSY, FRONT (EC78P: US, CND)
56 4-951-620-01 SCREW (2.6X8), +BVTP
57 1-835-338-21 CABLE, FLEXIBLE FLAT (31 CORE)

58 3-297-298-01 SHEET (RM)
59 A-1379-659-A PANEL BOARD, COMPLETE (EC78P: US, CND)
59 A-1379-717-A PANEL BOARD, COMPLETE (EC68P: US)
59 A-1426-107-A PANEL BOARD, COMPLETE (EC78P: UK)
59 A-1426-165-A PANEL BOARD, COMPLETE (EC68P: AUS)

60 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE)
61 4-225-252-01 CUSHION (FOOT)
62 1-835-336-21 CABLE, FLEXIBLE FLAT (11 CORE)
63 A-1379-815-A DMP BOARD, COMPLETE
64 3-276-209-01 BRACKET (DMPORT)

48

7-3. CHASSIS SECTION

main section

#1

#2

#2

HCD-EC68P/EC78P

(EC78P)

105

105

105

not supplied

M601

105

105

not supplied
(AC HOLD board)

102

"

not supplied

#1

#1

"

1 CD mechanism section

(EXCEPT EC78P: UK) (EC78P: UK)

108

107

#1

102

104

106

107

3 CD mechanism section

101

not supplied

101

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

101 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE) (EC78P: UK)
102 4-225-252-01 CUSHION (FOOT)
104 3-701-748-00 CLAMP
105 3-254-143-1

0 106 1-769-744-81 CORD, POWER (EC78P: UK)

0 106 1-834-967-21 CORD, POWER (EC68P: AUS)
0 106 1-834-978-11 CORD, POWER (EC68P: US/EC78P: US, CND)

107 1-834-181-21 CABLE, FLEXIBLE FLAT (21 CORE) (EC78P: UK)
107 1-835-334-21 CABLE, FLEXIBLE FLAT (21 CORE)

1 SCREW (B3), (+) BV TAPPING

108 1-832-666-21 CABLE, FLEXIBLE FLAT (5 CORE)

109 3-229-336-11 SCREW, +BVWH TAPPING (EC78P: UK)
M601 1-787-400-11 D.C. FAN (EC68P/EC78P: UK)
M601 1-787-631-11 FAN, DC (EC78P: US, CND)
#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2 7-685-661-14 SCREW +BVTP 4X12 TYPE2 N-S

(EC68P/EC78P: US, CND)

(EC68P/EC78P: US, CND)

49

HCD-EC68P/EC78P

7-4. MAIN SECTION

153

not supplied
(HI AMP board)

(EC78P)

not supplied

not supplied

not supplied
(REG board)

#4

not supplied

not supplied
(HOLD board)

151

#4

#1

not supplied
(HOLD (PT) board)

#1

#1

#4

152

not supplied

not supplied

154

#1

154

#1

#1

#1

#1

not supplied
(LOW AMP board)

#3

#1

#1

not supplied

PT003: EC68P/
PT004: EC78P

not supplied
(PT board)

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

151 A-1379-655-A MAIN BOARD, COMPLETE (EC78P: US, CND)
151 A-1379-713-A MAIN BOARD, COMPLETE (EC68P: US)
151 A-1426-105-A MAIN BOARD, COMPLETE (EC78P: UK)
151 A-1426-163-A MAIN BOARD, COMPLETE (EC68P: AUS)
152 1-831-744-21 CABLE, FLEXIBLE FLAT (5 CORE)

153 1-835-276-21 CABLE, FLEXIBLE FLAT (5 CORE) (EC78P)
154 3-905-609-31 SCREW (TRANSISTOR)

0 PT003 1-445-346-11 TRANSFORMER, POWER (EC68P: AUS)
0 PT003 1-445-476-11 TRANSFORMER, POWER (EC68P: US)
0 PT004 1-445-343-11 TRANSFORMER, POWER (EC78P: UK)

0 PT004 1-445-345-11 TRANSFORMER, POWER (EC78P: US, CND)

#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#3 7-685-880-09 SCREW +BVTT 4X6 (S)
#4 7-685-645-79 SCREW +BVTP 3X6 TYPE2 IT-3

50

7-5. 3 CD MECHANISM SECTION (EC78P: UK) (CDM88A-K6BD90-WOD)

HCD-EC68P/EC78P

not supplied

201

not supplied

202

202

204

203

205

spindle motor (M401)

S201

206

(including sled motor (M402),
spindle motor (M401))

204

204

sled motor (M402)

208

204

203

205

207

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

201 1-797-193-12 MECHANICAL, CD (DLM3A)
202 2-632-062-11 BELT (DLM3A)
203 4-227-045-31 SPRING (INSULATOR), COIL
204 4-227-549-31 INSULATOR
205 4-985-672-01 SCREW (+PTPWHM2.6), FLOATING

0 206 A-4735-357-A BASE ASSY, OP (KSM-213D)
207 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE)
208 A-1217-914-A CD BOARD, COMPLETE
S201 1-771-853-11 SWITCH, DETECTION (LIMIT)

51

HCD-EC68P/EC78P

7-6. 1 CD MECHANISM SECTION (EXCEPT EC78P: UK) (CDM77B-K6BD90-WOD)

252

not supplied

not supplied

251

spindle motor (M401)

255

254

253

S201

not supplied
(MOTOR board)

255

256

(including sled motor (M402),
spindle motor (M401))

255

sled motor (M402)

258

255

254

253

257

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

251 A-1242-967-A LOADING (BK) ASSY
252 3-080-478-01 BELT
253 4-985-672-01 SCREW (+PTPWHM2.6), FLOATING
254 4-227-045-41 SPRING (INSULATOR)
255 4-229-005-41 INSULATOR

0 256 A-4735-357-A BASE ASSY, OP (KSM-213D)
257 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE)
258 A-1217-914-A CD BOARD, COMPLETE
S201 1-771-853-11 SWITCH, DETECTION (LIMIT)

52

SECTION 8

ELECTRICAL PARTS LIST

HCD-EC68P/EC78P

CD

Note:

• Due to standardization, replacements in
the parts list may be different from the
parts specifi ed in the diagrams or the com-
ponents used on the set.

• -XX and -X mean standardized parts, so
they may have some difference from the
original one.

• Items marked “*” are not stocked since
they are seldom required for routine ser­vice.

Some delay should be anticipated when

ordering these items.

• CAPACITORS

uF: μF

• COILS

uH: μH

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

A-1217-914-A CD BOARD, COMPLETE

*******************

< CAPACITOR >

C100 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C101 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C102 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C103 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C104 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C105 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C106 1-128-995-21 ELECT CHIP 100uF 20% 10V
C107 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C108 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C109 1-164-360-11 CERAMIC CHIP 0.1uF 16V

• RESISTORS
All resistors are in ohms.
METAL: Metal-fi lm resistor.
METAL OXIDE: Metal oxide-fi lm resistor.
F: nonfl ammable

• SEMICONDUCTORS
In each case, u: μ, for example:
uA. . : μA. . , uPA. . , μPA. . ,
uPB. . : μPB. . , uPC. . , μPC. . ,
uPD. . : μPD. .

• Abbreviation
AUS : Australian model
CND : Canadian model

C148 1-162-923-11 CERAMIC CHIP 47PF 5% 50V
C149 1-162-919-11 CERAMIC CHIP 22PF 5% 50V
C150 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C151 1-164-315-11 CERAMIC CHIP 470PF 5% 50V

C152 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C153 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C201 1-128-995-21 ELECT CHIP 100uF 20% 10V
C202 1-128-995-21 ELECT CHIP 100uF 20% 10V
C204 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C205 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C206 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
C207 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
C301 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C302 1-137-710-91 CERAMIC CHIP 10uF 20% 6.3V

When indicating parts by reference num­ber, please include the board name.

The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.

Les composants identifi és par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifi é.

C110 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C112 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C113 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C115 1-124-778-00 ELECT CHIP 22uF 20% 6.3V
C116 1-164-360-11 CERAMIC CHIP 0.1uF 16V

C117 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C118 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C119 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C120 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C122 1-164-315-11 CERAMIC CHIP 470PF 5% 50V

C123 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C124 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C125 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C126 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C127 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C128 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V
C130 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V
C132 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C133 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C136 1-162-923-11 CERAMIC CHIP 47PF 5% 50V

C137 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C138 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C139 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C140 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C141 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C142 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C143 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C144 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C145 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C146 1-164-315-11 CERAMIC CHIP 470PF 5% 50V

C147 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C303 1-137-710-91 CERAMIC CHIP 10uF 20% 6.3V
C306 1-128-995-21 ELECT CHIP 100uF 20% 10V
C307 1-165-908-11 CERAMIC CHIP 1uF 10% 10V
C309 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C401 1-128-394-11 ELECT CHIP 220uF 20% 10V

C403 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C404 1-164-360-11 CERAMIC CHIP 0.1uF 16V
C405 1-164-360-11 CERAMIC CHIP 0.1uF 16V

< CONNECTOR >

CN201 1-784-833-51 CONNECTOR, FFC (LIF (NON-ZIF)) 21P
CN301 1-770-425-51 CONNECTOR, FFC/FPC 16P

< IC >

IC101 6-712-622-01 IC TC94A70FG-006 (D, HZ
IC201 6-710-808-01 IC TK63115SCL-G@GT
IC401 6-710-637-01 IC BA5826SFP-E2

< TRANSISTOR >

Q301 6-551-120-01 TRANSISTOR 2SA2119K

< RESISTOR >

R101 1-216-813-11 METAL CHIP 220 5% 1/10W
R102 1-216-833-11 METAL CHIP 10K 5% 1/10W
R104 1-216-295-91 SHORT CHIP 0
R105 1-216-857-11 METAL CHIP 1M 5% 1/10W
R106 1-216-821-11 METAL CHIP 1K 5% 1/10W

R108 1-216-864-11 SHORT CHIP 0
R110 1-216-833-11 METAL CHIP 10K 5% 1/10W
R111 1-216-809-11 METAL CHIP 100 5% 1/10W
R112 1-216-809-11 METAL CHIP 100 5% 1/10W

53

HCD-EC68P/EC78P

CD DMP HI AMP

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

R113 1-216-833-11 METAL CHIP 10K 5% 1/10W

< VIBRATOR >

R114 1-216-833-11 METAL CHIP 10K 5% 1/10W
R118 1-216-845-11 METAL CHIP 100K 5% 1/10W
R120 1-216-864-11 SHORT CHIP 0
R125 1-216-864-11 SHORT CHIP 0
R126 1-216-864-11 SHORT CHIP 0

R127 1-216-864-11 SHORT CHIP 0
R128 1-216-853-11 METAL CHIP 470K 5% 1/10W
R129 1-216-821-11 METAL CHIP 1K 5% 1/10W
R130 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R134 1-216-857-11 METAL CHIP 1M 5% 1/10W

R135 1-216-853-11 METAL CHIP 470K 5% 1/10W
R136 1-216-837-11 METAL CHIP 22K 5% 1/10W
R139 1-216-841-11 METAL CHIP 47K 5% 1/10W
R140 1-216-864-11 SHORT CHIP 0
R142 1-216-837-11 METAL CHIP 22K 5% 1/10W

R143 1-216-841-11 METAL CHIP 47K 5% 1/10W
R144 1-216-837-11 METAL CHIP 22K 5% 1/10W
R145 1-216-864-11 SHORT CHIP 0
R146 1-216-864-11 SHORT CHIP 0
R147 1-216-864-11 SHORT CHIP 0

R148 1-216-864-11 SHORT CHIP 0
R149 1-216-864-11 SHORT CHIP 0
R150 1-216-864-11 SHORT CHIP 0
R151 1-216-864-11 SHORT CHIP 0
R153 1-216-857-11 METAL CHIP 1M 5% 1/10W

R154 1-216-857-11 METAL CHIP 1M 5% 1/10W
R155 1-216-805-11 METAL CHIP 47 5% 1/10W
R156 1-216-809-11 METAL CHIP 100 5% 1/10W
R157 1-216-809-11 METAL CHIP 100 5% 1/10W
R201 1-216-295-91 SHORT CHIP 0

R202 1-216-295-91 SHORT CHIP 0
R203 1-216-809-11 METAL CHIP 100 5% 1/10W
R204 1-216-809-11 METAL CHIP 100 5% 1/10W
R205 1-216-809-11 METAL CHIP 100 5% 1/10W
R206 1-216-809-11 METAL CHIP 100 5% 1/10W

R207 1-216-809-11 METAL CHIP 100 5% 1/10W
R208 1-216-809-11 METAL CHIP 100 5% 1/10W
R209 1-216-809-11 METAL CHIP 100 5% 1/10W
R210 1-216-809-11 METAL CHIP 100 5% 1/10W
R211 1-216-809-11 METAL CHIP 100 5% 1/10W

R212 1-216-809-11 METAL CHIP 100 5% 1/10W
R218 1-216-845-11 METAL CHIP 100K 5% 1/10W
R219 1-216-845-11 METAL CHIP 100K 5% 1/10W
R220 1-216-845-11 METAL CHIP 100K 5% 1/10W
R221 1-216-845-11 METAL CHIP 100K 5% 1/10W

R222 1-216-845-11 METAL CHIP 100K 5% 1/10W
R223 1-216-845-11 METAL CHIP 100K 5% 1/10W
R301 1-216-845-11 METAL CHIP 100K 5% 1/10W
R302 1-216-864-11 SHORT CHIP 0
R303 1-216-789-11 METAL CHIP 2.2 5% 1/10W

R304 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R402 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R405 1-216-833-11 METAL CHIP 10K 5% 1/10W
R408 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R414 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

X102 1-795-101-21 VIBRATOR, CERAMIC (16.9344MHz)

************************************************************

A-1379-815-A DMP BOARD, COMPLETE

********************

3-276-209-01 BRACKET (DMPORT)

< CONNECTOR >

CN901 1-817-615-21 CONNECTOR, SQUARE TYPE (RECE) (DMPORT)
CN902 1-784-863-51 CONNECTOR, FFC (LIF (NON-ZIF)) 11P

< JUMPER RESISTOR >

R904 1-216-864-11 SHORT CHIP 0
R905 1-216-864-11 SHORT CHIP 0
R906 1-216-864-11 SHORT CHIP 0
R907 1-216-864-11 SHORT CHIP 0
R908 1-216-864-11 SHORT CHIP 0

************************************************************

HI AMP BOARD (EC78P)

************

< CAPACITOR >

C151 1-126-960-11 ELECT 1uF 20% 50V
C152 1-126-960-11 ELECT 1uF 20% 50V
C153 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C154 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C155 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

C156 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C157 1-126-960-11 ELECT 1uF 20% 50V
C158 1-126-960-11 ELECT 1uF 20% 50V
C159 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V
C160 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V

C161 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C162 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C166 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C169 1-128-576-11 ELECT 100uF 20% 63V
C170 1-128-576-11 ELECT 100uF 20% 63V

C173 1-165-621-91 CERAMIC CHIP 0.1uF 50V
C174 1-165-621-91 CERAMIC CHIP 0.1uF 50V
C175 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C176 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C178 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

< CONNECTOR >

CN151 1-819-134-11 PIN, CONNECTOR 6P
CN152 1-784-766-11 CONNECTOR, FFC 5P

< DIODE >

D151 6-500-335-01 DIODE MC2838-T112-1
D152 6-501-817-01 DIODE MA2J1110GLS0

< IC >

IC151 6-705-621-01 IC STK433-070 (EC78P: UK)
IC152 6-600-580-01 IC STK433-090-E (EC78P: US, CND)

R415 1-216-841-11 METAL CHIP 47K 5% 1/10W

54

JR151 1-216-864-11 SHORT

< JUMPER RESISTOR >

CHIP 0

HCD-EC68P/EC78P

LOW AMPKEY POWERKEY CDJACKHI AMP

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

< TRANSISTOR >

Q151 6-551-270-01 TRANSISTOR 2SA2026
Q152 6-551-270-01 TRANSISTOR 2SA2026

KEY CD BOARD

*************

< RESISTOR >

< RESISTOR >

R151 1-216-813-11 METAL CHIP 220 5% 1/10W

(EC78P: US, CND)

R151 1-216-824-11 METAL CHIP 1.8K 5% 1/10W

(EC78P: UK)

R152 1-216-813-11 METAL CHIP 220 5% 1/10W

(EC78P: US, CND)

R152 1-216-824-11 METAL CHIP 1.8K 5% 1/10W

(EC78P: UK)

R153 1-216-837-11 METAL CHIP 22K 5% 1/10W

R154 1-216-837-11 METAL CHIP 22K 5% 1/10W
R155 1-216-841-11 METAL CHIP 47K 5% 1/10W
R156 1-216-841-11 METAL CHIP 47K 5% 1/10W
R159 1-216-821-11 METAL CHIP 1K 5% 1/10W
R160 1-216-821-11 METAL CHIP 1K 5% 1/10W

R161 1-216-817-11 METAL CHIP 470 5% 1/10W
R162 1-216-817-11 METAL CHIP 470 5% 1/10W
R163 1-216-841-11 METAL CHIP 47K 5% 1/10W
R164 1-216-841-11 METAL CHIP 47K 5% 1/10W
R171 1-216-864-11 SHORT CHIP 0

R172 1-216-809-11 METAL CHIP 100 5% 1/10W
R173 1-216-821-11 METAL CHIP 1K 5% 1/10W
R175 1-216-813-11 METAL CHIP 220 5% 1/10W
R176 1-216-813-11 METAL CHIP 220 5% 1/10W
R177 1-216-813-11 METAL CHIP 220 5% 1/10W

R178 1-216-813-11 METAL CHIP 220 5% 1/10W

0 R179 1-216-361-31 METAL OXIDE 0.22 5% 2W F
0 R180 1-216-361-31 METAL OXIDE 0.22 5% 2W F

R181 1-216-822-11 METAL CHIP 1.2K 5% 1/10W
R182 1-216-822-11 METAL CHIP 1.2K 5% 1/10W

R183 1-216-837-11 METAL CHIP 22K 5% 1/10W
R184 1-216-837-11 METAL CHIP 22K 5% 1/10W
R185 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R186 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R195 1-216-817-11 METAL CHIP 470 5% 1/10W

R196 1-216-817-11 METAL CHIP 470 5% 1/10W

************************************************************

JACK BOARD

***********

< CAPACITOR >

C491 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C495 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C496 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

< JACK >

J491 1-566-822-51 JACK (AUDIO IN)
J492 1-815-629-21 JACK (PHONES)

< RESISTOR >

R491 1-216-837-11 METAL CHIP 22K 5% 1/10W
R492 1-216-837-11 METAL CHIP 22K 5% 1/10W

************************************************************

R407 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R408 1-216-826-11 METAL CHIP 2.7K 5% 1/10W
R409 1-216-828-11 METAL CHIP 3.9K 5% 1/10W
R410 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W

(EC78P: UK)

R411 1-216-835-11 METAL CHIP 15K 5% 1/10W

(EC78P: UK)

< SWITCH >

SW306 1-771-410-21 SWITCH, TACTILE (CD) (EC68P/EC78P: US, CND)
SW306 1-771-410-21 SWITCH, TACTILE (DISC 1) (EC78P: UK)
SW307 1-771-410-21 SWITCH, TACTILE (DMPORT)

(EC68P/EC78P: US, CND)

SW307 1-771-410-21 SWITCH, TACTILE (DISC 2) (EC78P: UK)
SW308 1-771-410-21 SWITCH, TACTILE (Z) (EC68P/EC78P: US, CND)

SW308 1-771-410-21 SWITCH, TACTILE (DISC 3) (EC78P: UK)
SW309 1-771-410-21 SWITCH, TACTILE (Z) (EC78P: UK)
SW310 1-771-410-21 SWITCH, TACTILE (DISC SKIP/EX-CHANGE)

(EC78P: UK)

************************************************************

KEY POWER BOARD

****************

< SWITCH >

SW301 1-771-410-21 SWITCH, TACTILE (I/1, STANDBY)

< CABLE HOLDER >

W401 1-824-027-21 HOLDER, CABLE 3P

************************************************************

LOW AMP BOARD

**************

< CAPACITOR >

C101 1-126-960-11 ELECT 1uF 20% 50V
C102 1-126-960-11 ELECT 1uF 20% 50V
C103 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C104 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C105 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

C106 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C107 1-126-947-11 ELECT 47uF 20% 35V
C108 1-126-947-11 ELECT 47uF 20% 35V
C109 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V
C110 1-162-908-11 CERAMIC CHIP 3PF 0.25PF 50V

C116 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C119 1-126-968-11 ELECT 100uF 20% 50V

(EC68P)

C119 1-128-576-11 ELECT 100uF 20% 63V

(EC78P)

C120 1-126-968-11 ELECT 100uF 20% 50V

(EC68P)

C120 1-128-576-11 ELECT 100uF 20% 63V

(EC78P)

C123 1-165-621-91 CERAMIC CHIP 0.1uF 50V
C124 1-165-621-91 CERAMIC CHIP 0.1uF 50V
C125 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C126 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C128 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

5555

HCD-EC68P/EC78P

MAINLOW AMP

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

< CONNECTOR >

CN102 1-784-766-11 CONNECTOR, FFC 5P
CN104 1-824-030-21 HOLDER, CABLE 5P

< DIODE >

R132 1-216-822-11 METAL CHIP 1.2K 5% 1/10W

R133 1-216-837-11 METAL CHIP 22K 5% 1/10W
R134 1-216-837-11 METAL CHIP 22K 5% 1/10W
R135 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R136 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R142 1-216-864-11 SHORT CHIP 0

D101 6-500-335-01 DIODE MC2838-T112-1
D103 6-501-817-01 DIODE MA2J1110GLS0

< IC >

IC101 6-705-620-01 IC STK433-060 (EC68P)
IC101 6-705-621-01 IC STK433-070 (EC78P: UK)
IC102 6-600-580-01 IC STK433-090-E (EC78P: US, CND)

< JUMPER RESISTOR >

JR132 1-216-864-11 SHORT CHIP 0

< TRANSISTOR >

Q101 6-551-270-01 TRANSISTOR 2SA2026
Q102 6-551-270-01 TRANSISTOR 2SA2026

< RESISTOR >

R101 1-216-864-11 SHORT CHIP 0
R102 1-216-864-11 SHORT CHIP 0
R103 1-216-813-11 METAL CHIP 220 5% 1/10W

(EC78P: US, CND)

R103 1-216-824-11 METAL CHIP 1.8K 5% 1/10W

(EC78P: UK)

R103 1-216-827-11 METAL CHIP 3.3K 5% 1/10W

(EC68P)

R104 1-216-813-11 METAL CHIP 220 5% 1/10W

(EC78P: US, CND)

R104 1-216-824-11 METAL CHIP 1.8K 5% 1/10W

(EC78P: UK)

R104 1-216-827-11 METAL CHIP 3.3K 5% 1/10W

(EC68P)

R105 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EC68P)

R105 1-216-837-11 METAL CHIP 22K 5% 1/10W

(EC78P)

R106 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EC68P)

R106 1-216-837-11 METAL CHIP 22K 5% 1/10W

(EC78P)
R107 1-216-841-11 METAL CHIP 47K 5% 1/10W
R108 1-216-841-11 METAL CHIP 47K 5% 1/10W
R109 1-216-821-11 METAL CHIP 1K 5% 1/10W

R110 1-216-821-11 METAL CHIP 1K 5% 1/10W
R111 1-216-817-11 METAL CHIP 470 5% 1/10W
R112 1-216-817-11 METAL CHIP 470 5% 1/10W
R113 1-216-841-11 METAL CHIP 47K 5% 1/10W
R114 1-216-841-11 METAL CHIP 47K 5% 1/10W

R122 1-216-809-11 METAL CHIP 100 5% 1/10W
R123 1-216-821-11 METAL CHIP 1K 5% 1/10W
R125 1-216-813-11 METAL CHIP 220 5% 1/10W
R126 1-216-813-11 METAL CHIP 220 5% 1/10W
R127 1-216-813-11 METAL CHIP 220 5% 1/10W

R128 1-216-813-11 METAL CHIP 220 5% 1/10W

0 R129 1-216-361-31 METAL OXIDE 0.22 5% 2W F
0 R130 1-216-361-31 METAL OXIDE 0.22 5% 2W F

R131 1-216-822-11 METAL CHIP 1.2K 5% 1/10W

R145 1-216-817-11 METAL CHIP 470 5% 1/10W
R146 1-216-817-11 METAL CHIP 470 5% 1/10W

************************************************************

A-1379-655-A MAIN BOARD, COMPLETE (EC78P: US, CND)
A-1379-713-A MAIN BOARD, COMPLETE (EC68P: US)
A-1426-105-A MAIN BOARD, COMPLETE (EC78P: UK)
A-1426-163-A MAIN BOARD, COMPLETE (EC68P: AUS)

*********************

7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S

< CAPACITOR >

C601 1-126-947-11 ELECT 47uF 20% 35V
C602 1-104-662-91 ELECT 22uF 20% 25V
C603 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

(EC78P)

C604 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78P)

C605 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78P)

C606 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

(EC78P)
C607 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C608 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C609 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C610 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

C611 1-127-715-11 CERAMIC CHIP 0.22uF 10% 16V
C612 1-127-715-11 CERAMIC CHIP 0.22uF 10% 16V
C613 1-126-964-11 ELECT 10uF 20% 50V
C614 1-126-963-11 ELECT 4.7uF 20% 50V
C615 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78P)

C616 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78P)
C617 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C618 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C619 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C620 1-104-658-91 ELECT 100uF 20% 10V

C621 1-137-749-11 MYLAR 0.1uF 100V
C622 1-114-471-51 ELECT 3300uF 20% 63V

(EC78P: US, CND)

C622 1-126-974-11 ELECT 3300uF 20% 50V

(EC78P: UK)

C622 1-128-550-11 ELECT 2200uF 20% 50V

(EC68P)
C623 1-137-749-11 MYLAR 0.1uF 100V

C626 1-114-471-51 ELECT 3300uF 20% 63V

(EC78P: US, CND)

C626 1-126-974-11 ELECT 3300uF 20% 50V

(EC78P: UK)

C626 1-128-550-11 ELECT 2200uF 20% 50V

(EC68P)
C627 1-126-943-11 ELECT 2200uF 20% 25V
C628 1-126-942-61 ELECT 1000uF 20% 25V

C629 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C630 1-126-947-11 ELECT 47uF 20% 35V

56

HCD-EC68P/EC78P

MAIN

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

C631 1-126-933-11 ELECT 100uF 20% 16V
C632 1-126-963-11 ELECT 4.7uF 20% 50V
C633 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C713 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C714 1-126-947-11 ELECT 47uF 20% 35V
C760 1-104-665-11 ELECT 100uF 20% 25V

C634 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C636 1-126-960-11 ELECT 1uF 20% 50V
C637 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C638 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C639 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C640 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C641 1-126-962-11 ELECT 3.3uF 20% 50V
C642 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C644 1-126-960-11 ELECT 1uF 20% 50V
C645 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

C646 1-126-960-11 ELECT 1uF 20% 50V
C647 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C648 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C649 1-162-960-11 CERAMIC CHIP 220PF 10% 50V
C650 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

C652 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C654 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C655 1-162-960-11 CERAMIC CHIP 220PF 10% 50V
C656 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C657 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C658 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C659 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V
C660 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V
C661 1-126-964-11 ELECT 10uF 20% 50V
C662 1-115-416-11 CERAMIC CHIP 0.001uF 5% 25V

C663 1-126-960-11 ELECT 1uF 20% 50V
C664 1-126-960-11 ELECT 1uF 20% 50V
C665 1-126-960-11 ELECT 1uF 20% 50V
C666 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C667 1-126-933-11 ELECT 100uF 20% 16V

C669 1-126-923-91 ELECT 220uF 20% 10V
C671 1-126-933-11 ELECT 100uF 20% 16V
C673 1-126-925-91 ELECT 470uF 20% 10V
C674 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C675 1-126-960-11 ELECT 1uF 20% 50V

C676 1-126-960-11 ELECT 1uF 20% 50V
C679 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C680 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C681 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C682 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V

C683 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C684 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V
C685 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V
C686 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V
C687 1-110-563-11 CERAMIC CHIP 0.068uF 10% 16V

C689 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C690 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C691 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C692 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C693 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

C694 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C695 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C696 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C699 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C700 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

C703 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C704 1-162-962-11 CERAMIC CHIP 470PF 10% 50V

C761 1-126-935-11 ELECT 470uF 20% 16V
C762 1-104-658-91 ELECT 100uF 20% 10V
C771 1-126-960-11 ELECT 1uF 20% 50V
C772 1-126-960-11 ELECT 1uF 20% 50V
C773 1-126-960-11 ELECT 1uF 20% 50V

C774 1-126-960-11 ELECT 1uF 20% 50V
C775 1-126-947-11 ELECT 47uF 20% 35V
C776 1-104-662-91 ELECT 22uF 20% 25V
C786 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C787 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

C788 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C789 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C791 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C802 1-126-933-11 ELECT 100uF 20% 16V
C803 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V

C804 1-162-918-11 CERAMIC CHIP 18PF 5% 50V
C805 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V
C806 1-162-962-11 CERAMIC CHIP 470PF 10% 50V
C807 1-125-837-91 CERAMIC CHIP 1uF 10% 6.3V
C808 1-162-918-11 CERAMIC CHIP 18PF 5% 50V

C809 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C810 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C811 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C814 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

(EC68P: AUS/EC78P: UK)

C814 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

(EC68P: US/EC78P: US, CND)

C815 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

(EC68P: AUS/EC78P: UK)

C815 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

(EC68P: US/EC78P: US, CND)
C816 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C817 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C819 1-162-962-11 CERAMIC CHIP 470PF 10% 50V

C820 1-162-910-11 CERAMIC CHIP 5PF 0.25PF 50V
C821 1-162-966-11 CERAMIC CHIP 0.0022uF 10% 50V
C822 1-126-965-91 ELECT 22uF 20% 50V
C823 1-126-923-91 ELECT 220uF 20% 10V
C824 1-165-908-11 CERAMIC CHIP 1uF 10% 10V

C826 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C827 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C828 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C829 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V
C830 1-162-907-11 CERAMIC CHIP 2PF 0.25PF 50V

C831 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V
C832 1-117-863-11 CERAMIC CHIP 0.47uF 10% 6.3V
C833 1-126-923-91 ELECT 220uF 20% 10V
C834 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V
C835 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C836 1-164-227-11 CERAMIC CHIP 0.022uF 10% 25V
C837 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V
C838 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C840 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C841 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V

C843 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C844 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V
C845 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C846 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V

5757

HCD-EC68P/EC78P

MAIN

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

C847 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

< FILTER >

C848 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C850 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< FILTER >

CF801 1-781-962-21 FILTER, CERAMIC

< CONNECTOR >

CN601 1-819-131-11 PIN, CONNECTOR 3P
CN602 1-784-766-11 CONNECTOR, FFC 5P (EC78P)
CN603 1-784-766-11 CONNECTOR, FFC 5P
CN604 1-819-136-11 PIN, CONNECTOR 8P
CN605 1-784-770-11 CONNECTOR, FFC 9P

CN608 1-779-289-11 CONNECTOR, FFC (LIF (NON-ZIF)) 21P
CN609 1-779-279-11 CONNECTOR, FFC (LIF (NON-ZIF)) 11P
CN632 1-824-030-21 HOLDER, CABLE 5P (EC78P)
CN633 1-819-133-11 PIN, CONNECTOR
* CN801 1-506-680-11 PLUG, CONNECTOR (2.5mm) 3P

(ANTENNA FM/AM)

CN803 1-784-792-11 CONNECTOR, FFC 31P

< DIODE >

D601 6-500-335-01 DIODE MC2838-T112-1
D602 6-500-335-01 DIODE MC2838-T112-1
D603 6-501-817-01 DIODE MA2J1110GLS0 (EC78P)
D604 6-501-817-01 DIODE MA2J1110GLS0
D605 6-501-817-01 DIODE MA2J1110GLS0

D606 6-500-334-01 DIODE MC2836-T112-1
D607 6-501-046-01 DIODE 1N5402-F46
D608 6-501-046-01 DIODE 1N5402-F46
D609 6-501-046-01 DIODE 1N5402-F46
D610 6-501-046-01 DIODE 1N5402-F46

D611 8-719-046-07 DIODE 2A02M (EC78P)
D612 8-719-046-07 DIODE 2A02M (EC78P)
D614 6-501-817-01 DIODE MA2J1110GLS0
D615 8-719-063-79 DIODE 1N4002B
D617 6-500-335-01 DIODE MC2838-T112-1

D618 6-501-719-01 DIODE MAZ8039GHLS0
D619 8-719-063-79 DIODE 1N4002B
D620 8-719-063-79 DIODE 1N4002B
D621 6-501-722-01 DIODE MAZ8043GMLS0
D622 6-501-752-01 DIODE MAZ8082GMLS0

FL801 1-760-393-11 FILTER, CERAMIC
FL803 1-236-711-21 FILTER, BAND PASS

< IC >

IC602 6-712-055-01 IC BD3499FV-E2
IC701 6-712-088-01 IC BD9701CP-V5
IC770 8-759-278-58 IC NJM4558V-TE2

IC801 6-708-840-01 IC LV23003VA

< JUMPER RESISTOR >

JR601 1-216-864-11 SHORT CHIP 0
JR602 1-216-864-11 SHORT CHIP 0
JR603 1-216-864-11 SHORT CHIP 0
JR604 1-216-864-11 SHORT CHIP 0
JR605 1-216-864-11 SHORT CHIP 0

JR606 1-216-864-11 SHORT CHIP 0
JR607 1-216-864-11 SHORT CHIP 0
JR608 1-216-864-11 SHORT CHIP 0
JR609 1-216-864-11 SHORT CHIP 0
JR610 1-216-864-11 SHORT CHIP 0

JR611 1-216-864-11 SHORT CHIP 0
JR612 1-216-864-11 SHORT CHIP 0
JR613 1-216-864-11 SHORT CHIP 0
JR614 1-216-864-11 SHORT CHIP 0
JR615 1-216-864-11 SHORT CHIP 0

JR616 1-216-864-11 SHORT CHIP 0
JR617 1-216-864-11 SHORT CHIP 0
JR618 1-216-864-11 SHORT CHIP 0

< COIL >

L601 1-456-107-11 COIL, AIR-CORE (EC78P)
L602 1-456-107-11 COIL, AIR-CORE (EC78P)
L603 1-456-107-11 COIL, AIR-CORE
L604 1-456-107-11 COIL, AIR-CORE
L701 1-456-467-11 INDUCTOR 100uH

L801 1-456-596-11 COIL, MW OSC
L802 1-457-168-11 COIL, DET
L803 1-457-162-11 COIL, AIR-CORE
L804 1-457-163-11 COIL, AIR-CORE
L805 1-457-161-11 COIL, AM ANTENNA

< TRANSISTOR >

D628 6-501-817-01 DIODE MA2J1110GLS0
D629 8-719-063-79 DIODE 1N4002B (EC68P)
D630 8-719-063-79 DIODE 1N4002B (EC68P)
D631 6-501-817-01 DIODE MA2J1110GLS0
D701 8-719-079-47 DIODE RK36LF-A4

D791 6-501-817-01 DIODE MA2J1110GLS0
D801 6-501-142-01 DIODE SVC347A-TL-E
D802 8-719-062-51 DIODE 1PS226-115
D803 6-501-369-01 DIODE SVC230-TB-E
D804 6-501-369-01 DIODE SVC230-TB-E

D805 8-719-062-51 DIODE 1PS226-115
D806 8-719-062-51 DIODE 1PS226-115

< GROUND TERMINAL >

ET601 1-537-771-21 TERMINAL BOARD, GROUND
ET602 1-537-771-21 TERMINAL BOARD, GROUND

58

Q601 8-729-037-03 TRANSISTOR KTA1266GR-AT
Q602 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q603 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q604 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q605 8-729-120-28 TRANSISTOR 2SC1623-L5L6

Q606 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q608 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q611 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q612 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF
Q618 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF

Q619 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q622 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q624 8-729-036-86 TRANSISTOR KTC3203Y-AT
Q761 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF
Q762 8-729-027-43 TRANSISTOR DTC114EKA-T146

Q801 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q802 8-729-120-28 TRANSISTOR 2SC1623-L5L6

HCD-EC68P/EC78P

MAIN

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

< RESISTOR >

R601 1-216-817-11 METAL CHIP 470 5% 1/10W
R603 1-216-793-11 METAL CHIP 4.7 5% 1/10W
R604 1-216-845-11 METAL CHIP 100K 5% 1/10W
R605 1-216-799-11 METAL CHIP 15 5% 1/10W

(EC78P: US, CND)

R605 1-216-806-11 METAL CHIP 56 5% 1/10W

(EC68P/EC78P: UK)

R606 1-216-797-11 METAL CHIP 10 5% 1/10W

(EC78P)

R607 1-216-797-11 METAL CHIP 10 5% 1/10W

(EC78P)

R608 1-216-797-11 METAL CHIP 10 5% 1/10W

(EC78P)
R609 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R610 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R641 1-249-403-11 CARBON 68 5% 1/4W

R642 1-249-403-11 CARBON 68 5% 1/4W
R643 1-216-833-11 METAL CHIP 10K 5% 1/10W
R644 1-216-821-11 METAL CHIP 1K 5% 1/10W
R645 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R646 1-216-809-11 METAL CHIP 100 5% 1/10W

R647 1-216-797-11 METAL CHIP 10 5% 1/10W
R648 1-216-841-11 METAL CHIP 47K 5% 1/10W
R649 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R650 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R651 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R652 1-216-809-11 METAL CHIP 100 5% 1/10W
0 R658 1-215-890-51 METAL OXIDE 470 5% 2W F
R660 1-216-864-11 SHORT CHIP 0
0 R662 1-215-890-51 METAL OXIDE 470 5% 2W F
R663 1-216-821-11 METAL CHIP 1K 5% 1/10W

R611 1-216-797-11 METAL CHIP 10 5% 1/10W
R612 1-216-797-11 METAL CHIP 10 5% 1/10W
R613 1-216-833-11 METAL CHIP 10K 5% 1/10W
R614 1-216-833-11 METAL CHIP 10K 5% 1/10W
R615 1-216-797-11 METAL CHIP 10 5% 1/10W

R616 1-216-828-11 METAL CHIP 3.9K 5% 1/10W

(EC68P)
R616 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC78P: UK)

R616 1-216-835-11 METAL CHIP 15K 5% 1/10W

(EC78P: US, CND)
R617 1-216-833-11 METAL CHIP 10K 5% 1/10W
R618 1-216-833-11 METAL CHIP 10K 5% 1/10W

R619 1-216-828-11 METAL CHIP 3.9K 5% 1/10W

(EC68P)

R619 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC78P: UK)

R619 1-216-835-11 METAL CHIP 15K 5% 1/10W

(EC78P: US, CND)
R620 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R621 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R622 1-216-839-11 METAL CHIP 33K 5% 1/10W
R623 1-216-833-11 METAL CHIP 10K 5% 1/10W
R624 1-216-833-11 METAL CHIP 10K 5% 1/10W
R625 1-216-839-11 METAL CHIP 33K 5% 1/10W
R626 1-216-833-11 METAL CHIP 10K 5% 1/10W

R627 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R628 1-216-833-11 METAL CHIP 10K 5% 1/10W
R629 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R630 1-216-841-11 METAL CHIP 47K 5% 1/10W
R631 1-216-797-11 METAL CHIP 10 5% 1/10W

(EC78P)

R632 1-216-845-11 METAL CHIP 100K 5% 1/10W

(EC78P)

R633 1-216-845-11 METAL CHIP 100K 5% 1/10W

(EC78P)

R634 1-249-402-11 CARBON 56 5% 1/4W

(EC78P)

R635 1-249-402-11 CARBON 56 5% 1/4W

(EC78P)

R636 1-249-402-11 CARBON 56 5% 1/4W

(EC78P)

R666 1-216-821-11 METAL CHIP 1K 5% 1/10W
R667 1-216-841-11 METAL CHIP 47K 5% 1/10W
R669 1-216-845-11 METAL CHIP 100K 5% 1/10W
R670 1-216-833-11 METAL CHIP 10K 5% 1/10W
R672 1-216-833-11 METAL CHIP 10K 5% 1/10W

R673 1-216-864-11 SHORT CHIP 0
R674 1-249-401-11 CARBON 47 5% 1/4W
R675 1-249-401-11 CARBON 47 5% 1/4W
R676 1-216-833-11 METAL CHIP 10K 5% 1/10W
R677 1-216-833-11 METAL CHIP 10K 5% 1/10W

R678 1-216-841-11 METAL CHIP 47K 5% 1/10W
R681 1-216-837-11 METAL CHIP 22K 5% 1/10W
R684 1-216-837-11 METAL CHIP 22K 5% 1/10W
R685 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R686 1-216-842-11 METAL CHIP 56K 5% 1/10W

R687 1-216-837-11 METAL CHIP 22K 5% 1/10W
R689 1-216-838-11 METAL CHIP 27K 5% 1/10W
R690 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R691 1-216-833-11 METAL CHIP 10K 5% 1/10W
R692 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R693 1-216-821-11 METAL CHIP 1K 5% 1/10W
R696 1-216-833-11 METAL CHIP 10K 5% 1/10W
R697 1-216-821-11 METAL CHIP 1K 5% 1/10W
R700 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R701 1-216-833-11 METAL CHIP 10K 5% 1/10W

R702 1-216-833-11 METAL CHIP 10K 5% 1/10W
R704 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R706 1-216-813-11 METAL CHIP 220 5% 1/10W
R707 1-216-813-11 METAL CHIP 220 5% 1/10W
R708 1-216-833-11 METAL CHIP 10K 5% 1/10W

R709 1-216-821-11 METAL CHIP 1K 5% 1/10W
R715 1-216-809-11 METAL CHIP 100 5% 1/10W
R716 1-216-821-11 METAL CHIP 1K 5% 1/10W
R717 1-249-403-11 CARBON 68 5% 1/4W
R718 1-249-403-11 CARBON 68 5% 1/4W

R719 1-249-403-11 CARBON 68 5% 1/4W
R720 1-216-837-11 METAL CHIP 22K 5% 1/10W
R722 1-216-809-11 METAL CHIP 100 5% 1/10W
R724 1-249-395-11 CARBON 15 5% 1/4W
R725 1-249-395-11 CARBON 15 5% 1/4W

R637 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R638 1-249-403-11 CARBON 68 5% 1/4W
R639 1-216-845-11 METAL CHIP 100K 5% 1/10W
R640 1-216-845-11 METAL CHIP 100K 5% 1/10W

R726 1-249-395-11 CARBON 15 5% 1/4W
R727 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R728 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R729 1-216-845-11 METAL CHIP 100K 5% 1/10W

5959

HCD-EC68P/EC78P

MOTOR

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

R731 1-216-809-11 METAL CHIP 100 5% 1/10W

R732 1-216-809-11 METAL CHIP 100 5% 1/10W
R741 1-216-821-11 METAL CHIP 1K 5% 1/10W
R742 1-216-821-11 METAL CHIP 1K 5% 1/10W
R749 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R750 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R751 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R752 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R753 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R754 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R759 1-216-805-11 METAL CHIP 47 5% 1/10W

R761 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R762 1-216-839-11 METAL CHIP 33K 5% 1/10W
R763 1-216-821-11 METAL CHIP 1K 5% 1/10W
0 R767 1-216-365-61 METAL OXIDE 0.47 5% 2W F
R768 1-216-833-11 METAL CHIP 10K 5% 1/10W

R769 1-216-805-11 METAL CHIP 47 5% 1/10W
R770 1-216-864-11 SHORT CHIP 0
R771 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R772 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R773 1-218-879-11 METAL CHIP 22K 0.5% 1/10W

PANELMAIN

R823 1-216-833-11 METAL CHIP 10K 5% 1/10W

R824 1-216-817-11 METAL CHIP 470 5% 1/10W
R825 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R826 1-216-821-11 METAL CHIP 1K 5% 1/10W
R827 1-216-845-11 METAL CHIP 100K 5% 1/10W
R829 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R830 1-216-827-11 METAL CHIP 3.3K 5% 1/10W
R831 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R832 1-216-857-11 METAL CHIP 1M 5% 1/10W
R836 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W
R837 1-216-845-11 METAL CHIP 100K 5% 1/10W

R838 1-216-837-11 METAL CHIP 22K 5% 1/10W
R839 1-216-797-11 METAL CHIP 10 5% 1/10W
R840 1-216-864-11 SHORT CHIP 0
R841 1-216-833-11 METAL CHIP 10K 5% 1/10W
R842 1-216-864-11 SHORT CHIP 0

R843 1-216-845-11 METAL CHIP 100K 5% 1/10W
R844 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R845 1-216-864-11 SHORT CHIP 0
R846 1-216-797-11 METAL CHIP 10 5% 1/10W
R847 1-216-864-11 SHORT CHIP 0

R774 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R775 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R776 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R777 1-218-879-11 METAL CHIP 22K 0.5% 1/10W
R778 1-218-879-11 METAL CHIP 22K 0.5% 1/10W

R779 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R780 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R781 1-216-839-11 METAL CHIP 33K 5% 1/10W
R782 1-216-842-11 METAL CHIP 56K 5% 1/10W
R783 1-216-845-11 METAL CHIP 100K 5% 1/10W

R784 1-216-845-11 METAL CHIP 100K 5% 1/10W
R785 1-216-845-11 METAL CHIP 100K 5% 1/10W
R786 1-216-845-11 METAL CHIP 100K 5% 1/10W
R787 1-216-835-11 METAL CHIP 15K 5% 1/10W
R788 1-216-835-11 METAL CHIP 15K 5% 1/10W

R791 1-216-845-11 METAL CHIP 100K 5% 1/10W
R792 1-216-849-11 METAL CHIP 220K 5% 1/10W
R801 1-216-809-11 METAL CHIP 100 5% 1/10W
R802 1-216-801-11 METAL CHIP 22 5% 1/10W
R803 1-216-825-11 METAL CHIP 2.2K 5% 1/10W

R804 1-216-801-11 METAL CHIP 22 5% 1/10W
R805 1-216-853-11 METAL CHIP 470K 5% 1/10W
R806 1-216-841-11 METAL CHIP 47K 5% 1/10W
R807 1-216-837-11 METAL CHIP 22K 5% 1/10W
R808 1-216-801-11 METAL CHIP 22 5% 1/10W

R809 1-216-809-11 METAL CHIP 100 5% 1/10W
R810 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R811 1-216-845-11 METAL CHIP 100K 5% 1/10W
R812 1-216-841-11 METAL CHIP 47K 5% 1/10W
R813 1-216-853-11 METAL CHIP 470K 5% 1/10W

< RELAY >

RY601 1-755-307-21 RELAY (EC78P)
RY602 1-755-307-21 RELAY

< TRANSFORMER >

T801 1-433-741-11 TRANSFORMER, IF

< TERMINAL >

TB601 1-780-381-11 TERMINAL BOARD, PUSH (ANTENNA) 4P

(SPEAKER HIGH FREQ. IMPEDANCE USE 8Ω)

(EC78P)

TB602 1-536-708-81 TERMINAL BOARD, PUSH (4P)

(SPEAKER IMPEDANCE USE 6Ω) (EC68P)

TB602 1-536-708-81 TERMINAL BOARD, PUSH (4P) (SPEAKER LOW

FREQ. IMPEDANCE USE 8Ω) (EC78P)

< VIBRATOR >

X801 1-813-917-11 VIBRATOR, CRYSTAL (75MHz)

************************************************************

MOTOR BOARD (EC68P/EC78P: US, CND)

*************

< CONNECTOR >

CN001 1-779-542-21 CONNECTOR, FFC (LIF (NON-ZIF)) 5P

< SWITCH >

S001 1-786-514-21 SWITCH, LEVER (SLIDE)

************************************************************

R814 1-216-837-11 METAL CHIP 22K 5% 1/10W
R815 1-216-833-11 METAL CHIP 10K 5% 1/10W
R816 1-216-821-11 METAL CHIP 1K 5% 1/10W
R817 1-216-841-11 METAL CHIP 47K 5% 1/10W
R818 1-216-833-11 METAL CHIP 10K 5% 1/10W

R819 1-216-839-11 METAL CHIP 33K 5% 1/10W
R820 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R821 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R822 1-216-809-11 METAL CHIP 100 5% 1/10W

60

A-1379-659-A PANEL BOARD, COMPLETE (EC78P: US, CND)
A-1379-717-A PANEL BOARD, COMPLETE (EC68P: US)
A-1426-107-A PANEL BOARD, COMPLETE (EC78P: UK)
A-1426-165-A PANEL BOARD, COMPLETE (EC68P: AUS)

**********************

2-649-178-01 PLATE, LIGHT GUIDE
2-649-179-01 SHEET (LCD)
2-665-175-01 SHEET (REFLECTOR)

HCD-EC68P/EC78P

PANEL

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

< CAPACITOR >

< DIODE >

C301 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C302 1-126-964-11 ELECT 10uF 20% 50V
C303 1-126-964-11 ELECT 10uF 20% 50V
C304 1-100-597-91 CERAMIC CHIP 0.1uF 10% 25V
C305 1-126-964-11 ELECT 10uF 20% 50V

C306 1-104-655-91 ELECT 470uF 20% 6.3V
C308 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

(EC78P: UK)

C309 1-126-965-91 ELECT 22uF 20% 50V

(EC78P: UK)

C310 1-164-156-11 CERAMIC CHIP 0.1uF 25V

(EC78P: UK)

C311 1-164-156-11 CERAMIC CHIP 0.1uF 25V

(EC78P: UK)

C312 1-164-156-11 CERAMIC CHIP 0.1uF 25V

(EC78P: UK)
C313 1-115-467-11 CERAMIC CHIP 0.22uF 10% 10V
C314 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C315 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C316 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C317 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C319 1-162-918-11 CERAMIC CHIP 18PF 5% 50V
C320 1-162-919-11 CERAMIC CHIP 22PF 5% 50V
C321 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C328 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C330 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C332 1-162-970-11 CERAMIC CHIP 0.01uF 10% 25V
C338 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C340 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C341 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C342 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C343 1-126-965-91 ELECT 22uF 20% 50V

(EC78P: UK)
C344 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

(EC78P: UK)
C345 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

(EC78P: UK)
C346 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

D301 6-501-722-01 DIODE MAZ8043GMLS0
D302 6-501-817-01 DIODE MA2J1110GLS0
D303 6-500-334-01 DIODE MC2836-T112-1
D304 6-501-817-01 DIODE MA2J1110GLS0
D305 6-501-817-01 DIODE MA2J1110GLS0 (EC78P: UK)

D306 8-719-063-79 DIODE 1N4002B (EC68P/EC78P: US, CND)
D307 6-501-817-01 DIODE MA2J1110GLS0

< FERRITE BEAD >

FB301 1-500-329-21 INDUCTOR, FERRITE BEAD

< IC >

IC301 A-1551-183-A IC MB90F831PF-G-SPE1 (for service)

IC301 A-1551-185-A IC MB90F831PF-G-SPE1 (for service)

IC302 6-711-556-01 IC NJL24H400B-SA
IC303 8-759-598-69 IC BA6956AN (EC68P/EC78P: US, CND)

< JUMPER RESISTOR >

JR301 1-216-864-11 SHORT
JR302 1-216-864-11 SHORT CHIP 0
JR303 1-216-864-11 SHORT CHIP 0
JR304 1-216-864-11 SHORT CHIP 0
JR305 1-216-864-11 SHORT CHIP 0

JR307 1-216-864-11 SHORT CHIP 0
JR308 1-216-864-11 SHORT CHIP 0
JR309 1-216-864-11 SHORT CHIP 0
JR310 1-216-864-11 SHORT CHIP 0
JR311 1-216-864-11 SHORT CHIP 0

JR313 1-216-864-11 SHORT CHIP 0
JR315 1-216-864-11 SHORT CHIP 0

< LIQUID CRYSTAL DISPLAY >

LCD301 1-802-584-11 DISPLAY PANEL, LIQUID

CHIP 0

(EC68P/EC78P: US, CND)

(EC78P: UK)

(EC68P/EC78P: US, CND)

C347 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C348 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C351 1-164-156-11 CERAMIC CHIP 0.1uF 25V

(EC68P/EC78P: US, CND)

C352 1-126-964-11 ELECT 10uF 20% 50V

(EC68P/EC78P: US, CND)

C353 1-164-156-11 CERAMIC CHIP 0.1uF 25V

(EC68P/EC78P: US, CND)

C354 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C355 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C356 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C357 1-126-965-91 ELECT 22uF 20% 50V

(EC68P/EC78P: US, CND)

< CONNECTOR >

CN301 1-784-753-11 CONNECTOR, FFC 31P
CN302 1-784-735-11 CONNECTOR, FFC 13P (EC78P: UK)
CN303 1-815-550-11 PIN, CONNECTOR (PWB) 2P
CN306 1-815-443-11 PIN, CONNECTOR (PWB) 2P
CN311 1-779-273-11 CONNECTOR, FFC (LIF (NON-ZIF)) 5P

(EC68P/EC78P: US, CND)

< LED >

LED301 6-501-479-01 LED 1L0341Y23E0CA602 (I/1, STANDBY)

< TRANSISTOR >

Q301 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q302 8-729-037-13 TRANSISTOR KTA1271Y
Q303 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q304 8-729-120-28 TRANSISTOR 2SC1623-L5L6
Q305 8-729-120-28 TRANSISTOR 2SC1623-L5L6

Q306 8-729-038-28 TRANSISTOR RT1N441C-TP-1
Q307 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF

(EC78P: UK)
Q308 8-729-038-28 TRANSISTOR RT1N441C-TP-1 (EC78P: UK)
Q309 8-729-040-76 TRANSISTOR KTA1273-Y-AT (EC78P: UK)
Q310 8-729-120-28 TRANSISTOR 2SC1623-L5L6 (EC78P: UK)

Q311 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF

(EC78P: UK)
Q312 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF

(EC78P: UK)
Q313 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF

(EC78P: UK)

6161

HCD-EC68P/EC78P

PANEL

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

Q314 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF

(EC78P: UK)

Q315 8-729-047-62 TRANSISTOR 2SC3440-T12-1F (EC78P: UK)

Q316 8-729-047-62 TRANSISTOR 2SC3440-T12-1F (EC78P: UK)
Q317 8-729-047-62 TRANSISTOR 2SC3440-T12-1F (EC78P: UK)
Q318 8-729-047-62 TRANSISTOR 2SC3440-T12-1F (EC78P: UK)

< RESISTOR >

R301 1-216-809-11 METAL CHIP 100 5% 1/10W
R302 1-216-809-11 METAL CHIP 100 5% 1/10W
R303 1-216-809-11 METAL CHIP 100 5% 1/10W
R304 1-216-809-11 METAL CHIP 100 5% 1/10W
R305 1-216-809-11 METAL CHIP 100 5% 1/10W

R306 1-216-809-11 METAL CHIP 100 5% 1/10W
R307 1-216-809-11 METAL CHIP 100 5% 1/10W
R308 1-216-809-11 METAL CHIP 100 5% 1/10W
R309 1-216-809-11 METAL CHIP 100 5% 1/10W
R310 1-216-809-11 METAL CHIP 100 5% 1/10W

R346 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R347 1-216-817-11 METAL CHIP 470 5% 1/10W

(EC78P: UK)

R348 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R349 1-216-817-11 METAL CHIP 470 5% 1/10W

(EC78P: UK)

R350 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R351 1-216-817-11 METAL CHIP 470 5% 1/10W

(EC78P: UK)

R352 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R353 1-216-817-11 METAL CHIP 470 5% 1/10W

(EC78P: UK)

R354 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R355 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)

R311 1-216-817-11 METAL CHIP 470 5% 1/10W
R312 1-216-809-11 METAL CHIP 100 5% 1/10W
R313 1-216-809-11 METAL CHIP 100 5% 1/10W
R314 1-216-809-11 METAL CHIP 100 5% 1/10W
R315 1-216-809-11 METAL CHIP 100 5% 1/10W

R316 1-216-809-11 METAL CHIP 100 5% 1/10W
R317 1-216-809-11 METAL CHIP 100 5% 1/10W
R318 1-216-809-11 METAL CHIP 100 5% 1/10W
R319 1-216-809-11 METAL CHIP 100 5% 1/10W
R320 1-216-809-11 METAL CHIP 100 5% 1/10W

R321 1-216-809-11 METAL CHIP 100 5% 1/10W
R322 1-216-809-11 METAL CHIP 100 5% 1/10W
R323 1-216-809-11 METAL CHIP 100 5% 1/10W
R324 1-216-809-11 METAL CHIP 100 5% 1/10W
R325 1-216-797-11 METAL CHIP 10 5% 1/10W

R326 1-216-809-11 METAL CHIP 100 5% 1/10W
R327 1-216-809-11 METAL CHIP 100 5% 1/10W
R328 1-216-833-11 METAL CHIP 10K 5% 1/10W
R329 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R330 1-216-819-11 METAL CHIP 680 5% 1/10W

R331 1-216-845-11 METAL CHIP 100K 5% 1/10W
R332 1-216-833-11 METAL CHIP 10K 5% 1/10W
R333 1-216-845-11 METAL CHIP 100K 5% 1/10W
R334 1-216-833-11 METAL CHIP 10K 5% 1/10W
R335 1-216-837-11 METAL CHIP 22K 5% 1/10W

R336 1-216-833-11 METAL CHIP 10K 5% 1/10W
R337 1-216-813-11 METAL CHIP 220 5% 1/10W
R338 1-216-789-11 METAL CHIP 2.2 5% 1/10W

(EC78P: UK)

R339 1-216-789-11 METAL CHIP 2.2 5% 1/10W

(EC78P: UK)

R340 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EC78P: UK)

R341 1-216-839-11 METAL CHIP 33K 5% 1/10W

(EC78P: UK)

R342 1-216-849-11 METAL CHIP 220K 5% 1/10W

(EC78P: UK)

R343 1-216-853-11 METAL CHIP 470K 5% 1/10W

(EC78P: UK)

R344 1-216-826-11 METAL CHIP 2.7K 5% 1/10W

(EC78P: UK)

R345 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EC78P: UK)

R356 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)

R357 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R358 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)

R359 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)

R360 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)

R361 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)
R362 1-216-837-11 METAL CHIP 22K 5% 1/10W
R363 1-216-837-11 METAL CHIP 22K 5% 1/10W
R364 1-216-837-11 METAL CHIP 22K 5% 1/10W

(EC78P: UK)
R365 1-216-837-11 METAL CHIP 22K 5% 1/10W

(EC78P: UK)

R366 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC78P: UK)
R367 1-216-837-11 METAL CHIP 22K 5% 1/10W

(EC78P: UK)
R368 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC78P: UK)
R369 1-216-821-11 METAL CHIP 1K 5% 1/10W
R370 1-216-821-11 METAL CHIP 1K 5% 1/10W

R371 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)
R372 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)
R373 1-216-864-11 SHORT CHIP 0 (EC78P: UK)
R374 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)
R375 1-216-864-11 SHORT CHIP 0 (EC78P: UK)

R376 1-216-833-11 METAL CHIP 10K 5% 1/10W
R377 1-216-833-11 METAL CHIP 10K 5% 1/10W
R378 1-216-839-11 METAL CHIP 33K 5% 1/10W
R379 1-216-843-11 METAL CHIP 68K 5% 1/10W
R380 1-216-817-11 METAL CHIP 470 5% 1/10W

R381 1-216-833-11 METAL CHIP 10K 5% 1/10W
R382 1-216-833-11 METAL CHIP 10K 5% 1/10W
R383 1-216-833-11 METAL CHIP 10K 5% 1/10W
R384 1-216-833-11 METAL CHIP 10K 5% 1/10W
R385 1-216-821-11 METAL CHIP 1K 5% 1/10W

62

HCD-EC68P/EC78P

PANEL PT REG

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

R386 1-216-821-11 METAL CHIP 1K 5% 1/10W
R387 1-216-821-11 METAL CHIP 1K 5% 1/10W
R389 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC68P/EC78P: US, CND)

R389 1-216-830-11 METAL CHIP 5.6K 5% 1/10W

(EC78P: UK)

R390 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC78P)

R391 1-216-821-11 METAL CHIP 1K 5% 1/10W

(EC78P: UK)

R391 1-216-825-11 METAL CHIP 2.2K 5% 1/10W

(EC68P: AUS)

R392 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC68P/EC78P: US, CND)
R396 1-216-851-11 METAL CHIP 330K 5% 1/10W
R400 1-216-821-11 METAL CHIP 1K 5% 1/10W

R401 1-216-821-11 METAL CHIP 1K 5% 1/10W
R402 1-216-845-11 METAL CHIP 100K 5% 1/10W
R405 1-216-822-11 METAL CHIP 1.2K 5% 1/10W
R406 1-216-823-11 METAL CHIP 1.5K 5% 1/10W
R412 1-216-822-11 METAL CHIP 1.2K 5% 1/10W

SW313 1-771-410-21 SWITCH, TACTILE (x)
SW314 1-771-410-21 SWITCH, TACTILE (FOLDER +)
SW315 1-771-410-21 SWITCH, TACTILE (FOLDER −)
SW316 1-771-410-21 SWITCH, TACTILE (EQ)
SW317 1-771-410-21 SWITCH, TACTILE (DSGX)

SW318 1-771-410-21 SWITCH, TACTILE (PLAY MODE/TUNING MODE)
SW319 1-771-410-21 SWITCH, TACTILE (DISPLAY)

< VIBRATOR >

X301 1-814-067-11 OSCILLATOR, CRYSTAL (32.768kHz)
X302 1-813-548-21 VIBRATOR, CERAMIC (6MHz)

************************************************************

PT BOARD

*********

< CAPACITOR >

C051 1-165-621-91 CERAMIC CHIP 0.1uF 50V
C052 1-164-156-11 CERAMIC CHIP 0.1uF 25V

R413 1-216-823-11 METAL CHIP 1.5K 5% 1/10W
R414 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R415 1-216-826-11 METAL CHIP 2.7K 5% 1/10W
R416 1-216-828-11 METAL CHIP 3.9K 5% 1/10W
R417 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W

R418 1-216-835-11 METAL CHIP 15K 5% 1/10W
R419 1-216-838-11 METAL CHIP 27K 5% 1/10W
R420 1-216-845-11 METAL CHIP 100K 5% 1/10W
R421 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC78P: UK)

R422 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R426 1-216-845-11 METAL CHIP 100K 5% 1/10W

(EC78P: UK)

R428 1-216-841-11 METAL CHIP 47K 5% 1/10W

(EC78P: UK)
R429 1-216-833-11 METAL CHIP 10K 5% 1/10W
R433 1-216-817-11 METAL CHIP 470 5% 1/10W
R434 1-216-817-11 METAL CHIP 470 5% 1/10W

R435 1-216-817-11 METAL CHIP 470 5% 1/10W
R441 1-216-840-11 METAL CHIP 39K 5% 1/10W

(EC68P/EC78P: US, CND)

R442 1-216-837-11 METAL CHIP 22K 5% 1/10W

(EC68P/EC78P: US, CND)

R443 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EC68P/EC78P: US, CND)

R444 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EC68P/EC78P: US, CND)

< CONNECTOR >

CN051 1-819-972-11 HOLDER, CABLE 8P
0 CN053 1-793-660-11 PIN, CONNECTOR (PC BOARD) 3P

< DIODE >

D051 6-500-334-01 DIODE MC2836-T112-1
D052 6-500-335-01 DIODE MC2838-T112-1
D055 6-500-335-01 DIODE MC2838-T112-1

< TRANSFORMER >

0 PT001 1-443-846-11 TRANSFORMER, POWER

(EC68P: US/EC78P: US, CND)

0 PT001 1-443-912-11 TRANSFORMER, POWER (EC78P: UK)
0 PT002 1-445-105-11 TRANSFORMER, POWER (EC68P: AUS)

< RELAY >

0 RY001 1-755-334-11 RELAY, AC POWER (EC68P: US/EC78P)
0 RY002 1-755-496-11 RELAY (EC68P: AUS)

************************************************************

REG BOARD

**********

< CAPACITOR >

C698 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

R445 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

(EC68P/EC78P: US, CND)
R446 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R447 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R448 1-216-833-11 METAL CHIP 10K 5% 1/10W

< ROTARY ENCODER >

S301 1-786-417-11 ENCODER, ROTARY (VOLUME)

< SWITCH >

SW303 1-771-410-21 SWITCH, TACTILE (l m − TUNING)
SW304 1-771-410-21 SWITCH, TACTILE (FUNCTION)
SW305 1-771-410-21 SWITCH, TACTILE (TUNING + M L)
SW311 1-771-410-21 SWITCH, TACTILE (CD N)
SW312 1-771-410-21 SWITCH, TACTILE (X)

< IC >

IC601 8-759-231-56 IC TA7809S

< CABLE HOLDER >

W610 1-824-027-21 HOLDER, CABLE 3P

************************************************************

6363

HCD-EC68P/EC78P

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

MISCELLANEOUS

**************

57 1-835-338-21 CABLE, FLEXIBLE FLAT (31 CORE)
60 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE)
62 1-835-336-21 CABLE, FLEXIBLE FLAT (11 CORE)
101 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE) (EC78P: UK)

0 106 1-769-744-81 CORD, POWER (EC78P: UK)

0 106 1-834-967-21 CORD, POWER (EC68P: AUS)
0 106 1-834-978-11 CORD, POWER (EC68P: US/EC78P: US, CND)

107 1-834-181-21 CABLE, FLEXIBLE FLAT (21 CORE) (EC78P: UK)
107 1-835-334-21 CABLE, FLEXIBLE FLAT (21 CORE)

108 1-832-666-21 CABLE, FLEXIBLE FLAT (5 CORE)

152 1-831-744-21 CABLE, FLEXIBLE FLAT (5 CORE)
153 1-835-276-21 CABLE, FLEXIBLE FLAT (5 CORE) (EC78P)
201 1-797-193-12 MECHANICAL, CD (DLM3A) (EC78P: UK)
0 206 A-4735-357-A BASE ASSY, OP (KSM-213D) (EC78P: UK)
207 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE) (EC78P: UK)

251 A-1242-967-A LOADING (BK) ASSY (EC68P/EC78P: US, CND)
0 256 A-4735-357-A BASE ASSY, OP (KSM-213D)

257 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE)

M601 1-787-400-11 D.C. FAN (EC68P/EC78P: UK)
M601 1-787-631-11 FAN, DC (EC78P: US, CND)

(EC68P/EC78P: US, CND)

(EC68P/EC78P: US, CND)

(EC68P/EC78P: US, CND)

(EC68P/EC78P: US, CND)

0 PT003 1-445-346-11 TRANSFORMER, POWER (EC68P: AUS)
0 PT003 1-445-476-11 TRANSFORMER, POWER (EC68P: US)
0 PT004 1-445-343-11 TRANSFORMER, POWER (EC78P: UK)
0 PT004 1-445-345-11 TRANSFORMER, POWER (EC78P: US, CND)

S201 1-771-853-11 SWITCH, DETECTION (LIMIT)

*************************************************************

ACCESSORY

***********

0 1-770-019-61 ADAPTOR, CONVERSION PLUG (EC78P: UK)

64

MEMO

HCD-EC68P/EC78P

65

HCD-EC68P/EC78P

REVISION HISTORY

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Also, clicking the version at the top of the revised page allows you to jump to the next revised page.

Ver. Date Description of Revision

1.0 2008.03 New