Sony HCD-EC68USB Service Manual

HCD-EC68USB

SERVICE MANUAL

Ver. 1.1 2008.06

• HCD-EC68USB is the amplifi er, USB, CD player
and tuner section in MHC-EC68USB.

SPECIFICATIONS

Model Name Using Similar Mechanism

Mechanism Type

Base Unit Name

Optical Pick-up Block Name

AEP Model

E Model

NEW

CDM88A-K6BD91UR-WOD

BU-K6BD91UR-WOD

KSM-213DCP

European model:
Power output (rated):

70 W + 70 W (at 6 Ω, 1 kHz,
1% THD)

RMS output power (reference):

90 W + 90 W (per channel at 6 Ω,
1 kHz, 10% THD)

Other models:

220, 240 V, 50/60 Hz
Power output (rated):

50 W + 50 W (at 6 Ω, 1 kHz,
1% THD)

RMS output power (reference):

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

Inputs

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

(USB) port: Type A

Outputs

PHONES (stereo mini jack): accepts
headphones with an impedance of 8 Ω or
more
SPEAKER: impedance
6 Ω

USB section

Supported bit rate

MP3 (MPEG 1 Audio Layer-3):
32 − 320 kbps, VBR

Sampling frequencies

MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz

Transfer speed

Full-Speed

Supported USB device

Mass Storage Class

Maximum current

500 mA

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:

87.5 − 108.0 MHz (50 kHz step)

Intermediate frequency: 10.7 MHz

AM tuner section:

Tuning range
European mo del:

531 − 1,602 kHz
(with 9 kHz tuning interval)

Other models:

530 − 1,710 kHz
(with 10 kHz tuning interval)
531 − 1,710 kHz
(with 9 kHz tuning interval)

Intermediate frequency: 450 kHz

General

Power requirements
European model:
AC 230 V, 50/60 Hz
Mexican model: AC 127 V, 60 Hz
Argentine model: AC 220 V, 50/60 Hz
Other models: AC 120, 220 or 230 – 240 V,
50/60 Hz, adjustable with voltage selector

Power consumption
European model:

130 W

0.5 W (in Power Saving Mode)
Other models: 110 W
Dimensions (w/h/d) (excl. speakers)

Approx. 200 × 306 × 415 mm

Mass (excl. speakers)

European model:

6.0 kg

Other models:

5.6 kg

change without notice.

COMPACT DISC RECEIVER

9-889-055-02

2008F05-1

2008.06

©

Sony Corporation

Audio Business Group
Published by Sony Techno Create Corporation

HCD-EC68USB

Ver. 1.1

• 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.

TABLE OF CONTENTSNotes on chip component replacement

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

2. GENERAL .................................................................. 7

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 8

3-2. Side Panel (L)/(R) ........................................................... 9

3-3. Panel (Top) ...................................................................... 9

3-4. MAIN Board ................................................................... 10

3-5. Front Panel Block ........................................................... 10

3-6. Back Panel Block ............................................................ 11

3-7. 3 CD Mechanism Block .................................................. 11

3-8. Base Unit ......................................................................... 12

3-9. OP Base Assy (KSM-213D) ........................................... 12

3-10. Belt (DLM3A) ................................................................ 13

4. TEST MODE ............................................................ 14

5. ELECTRICAL ADJUSTMENTS ........................ 18

6. DIAGRAMS

6-1. Block Diagram - CD SERVO, TUNER Section - ........... 20

6-2. Block Diagram - USB Section - ..................................... 21

6-3. Block Diagram - MAIN Section - ................................... 22

6-4. Printed Wiring Board - CD Board - ................................ 24

6-5. Schematic Diagram - CD Board - ................................... 25

6-6. Printed Wiring Boards - USB Section - .......................... 26

6-7. Schematic Diagram - USB Section - .............................. 27

6-8. Printed Wiring Board

- MAIN Board (Suffi x-12/-13) - ..................................... 28

6-9. Printed Wiring Board - MAIN Board (Suffi x-14) - ........ 29

6-10. Schematic Diagram - MAIN Board (1/2) - ..................... 30

6-11. Schematic Diagram - MAIN Board (2/2) - ..................... 31

6-12. Printed Wiring Board - LOW AMP Board - ................... 32

6-13. Schematic Diagram - LOW AMP Board - ...................... 32

6-14. Printed Wiring Boards - KEY Section - .......................... 33

6-15. Schematic Diagram - KEY Section - .............................. 33

6-16. Printed Wiring Board - PANEL Board (Suffi x-12) - ...... 34

6-17. Printed Wiring Board - PANEL Board (Suffi x-13) - ...... 35

6-18. Printed Wiring Board - PANEL Board (Suffi x-14) - ...... 36

6-19. Schematic Diagram - PANEL Board - ............................ 37

6-20. Printed Wiring Board - PT Board - ................................. 38

6-21. Schematic Diagram - PT Board - .................................... 39

7. EXPLODED VIEWS

7-1. Panel Section ................................................................... 48

7-2. Front Panel Section ......................................................... 49

7-3. Chassis Section ............................................................... 50

7-4. Main Section ................................................................... 51

7-5. 3 CD Mechanism Section

(CDM88A-K6BD91UR-WOD) ...................................... 52

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.

2

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

Note: Refer to “Suffi x-14” for DIAGRAMS of 120V AC area in E

model.

SECTION 1

SERVICING NOTES

HCD-EC68USB

Ver. 1.1

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.

MODEL IDENTIFICATION
– Back Panel –

Model Part No.

AEP model

120V AC area in E, Chilean and Peruvian
models

Mexican model

Argentina model

MODEL
NUMBER
LABEL

3-398-095-0[]

3-398-096-0[]

3-398-097-0[]

3-398-098-0[]

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 [

] button to turn the power on.

?/1

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

3. While pressing the [

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

x

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

turning power on/off with the [

?/1

] button.

3

HCD-EC68USB

SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING BOARDS

– MAIN Board (Component Side) –

Suffix-12 : 1-875-488-12
Suffix-13 : 1-875-488-13
Suffix-14 : 1-875-488-14

– PANEL Board (Component Side) –

Suffix-12 : 1-875-490-12
Suffix-13 : 1-875-490-13
Suffix-14 : 1-875-490-14

– USB CONN Board (Component Side) –

Suffix-12 : 1-875-497-12
Suffix-13 : 1-875-497-13
Suffix-14 : 1-875-497-14

– JACK Board (Component Side) –

Suffix-12 : 1-875-493-12
Suffix-13 : 1-875-493-13
Suffix-14 : 1-875-493-14

4

HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF

HCD-EC68USB

pull the tray by the hand.



HOW TO REMOVE THE KNOB (VOL)

knob (VOL)



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.



5

HCD-EC68USB

CAPACITOR DISCHARGE FOR ELECTRIC SHOCK PREVENTION

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

800 Ω/2W

MAIN board

800 Ω/2W

C626

C622

MAIN board

6

Guide to parts and controls

SECTION 2

GENERAL

also be performed using the buttons on the unit having the same or similar names.

HCD-EC68USB

This section is extracted
from instruction manual.

Unit



/ (on/standby)

Press to turn on the system.



Remote sensor



Unit:  (play/pause)
Remote:  (play)

 (pause)

Presstostartorpauseplayback.

 (stop)

Presstostopplayback.



FUNCTION

Presstoselectthefunction.

CD

Press to select the CD function.

TUNER/BAND

Press to select the TUNER function.
Press to select FM or AM reception
mode.

USB

Press to select the USB function.



/ (go back/go forward)

Unit: TUNING +/−
Remote: +/− (tuning)

Press to tune in the desired station.

/ (rewind/fast forward)



Unit: USB

Press to select the USB function.



DISPLAY

Presstochangethe informationonthe
display.



Unit: DSGX, EQ
Remote: EQ



 (open/close)

Press to insert and eject a disc.

R

Unit: DISC 1 − 3

Press to select a disc. Press to switch to
the CD function from other function.

RB

(USB) port

Connect an optional USB device (Digital
music player or USB storage media).

RT

AUDIO INPUT jack

Connect to an audio component
(Portable audio player, etc.).



PHONES jack

Connect the headphones.

Remote

RG

Unit: DISC SKIP/EX-CHANGE

Press to select a disc. Press to exchange a
disc while playing.

Remote: DISC SKIP

Press to select a disc.

RH

Unit: ERASE

from the connected optional USB device
(Digital music player or USB storage
media).

ENTER

Press to enter the settings.

Remote: CLEAR

Press to delete a pre-programmed track

RI

USB SYNC REC/REC1

Press to record from a disc onto the
connected optional USB device (Digital
music player or USB storage media).

RK

Unit: MASTER VOLUME

Turn to adjust the volume.

Remote: VOLUME +/−

Pressto adjustthevolume.

RL

CLOCK/TIMER SET

Presstosettheclockandthetimers.

RM

REPEAT/FM MODE

Press to listen to a disc, an USB device, a

Press to select the FM reception mode
(monaural or stereo).

TUNER MEMORY

Press to preset the radio station.

PLAY MODE/TUNING MODE

Press to select the play mode of a CD,
MP3 disc or an optional USB device
(Digital music player or USB storage
media).
Press to select the tuning mode.

X

+/− (select folder)

Press to select a folder.

XB

SLEEP

Press to set the Sleep Timer.



Battery compartment lid

7

HCD-EC68USB

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

3-1. DISASSEMBLY FLOW

SET

3-2. SIDE PANEL (L)/(R)
(Page 9)

3-3. PANEL (TOP)
(Page 9)

SECTION 3

DISASSEMBLY

3-5. FRONT PANEL BLOCK
(Page 10)

3-7. 3 CD MECHANISM BLOCK
(Page 11)

3-8. BASE UNIT
(Page 12)

3-9. OP BASE ASSY
(KSM-213D)
(Page 12)

3-4. MAIN BOARD
(Page 10)

3-10. BELT (DLM3A)
(Page 13)

3-6. BACK PANEL BLOCK
(Page 11)

8

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



(B3)

HCD-EC68USB

two screws



(B3)

3-3. PANEL (TOP)



(KTP3 × 10)

screw

panel (top)



two claws



two screws



(BVTP3 × 10)





four screws



(case3 TP)

two screws



(B3)

side panel (R)

screw



(KTP3 × 10)

9

HCD-EC68USB

3-4. MAIN BOARD

MAIN board

RT

two screws

RB

(BVTP3 × 6)

screw



(BVTP3 × 10)

flexible flat cable (27 core)



(CN607)

flexible flat cable (9 core)



(CN605)

connector (CN613)



flexible flat cable (21 core)



(CN608)

connector (CN604)



flexible flat cable (5 core)



(CN603)

connector (CN633)



connector (CN601)



two screws

R

(B3)

3-5. FRONT PANEL BLOCK

screw (BVTP3 × 10)



flexible flat cable (27 core)



(CN607)

flexible flat cable (21 core)



(CN608)

front panel

RE

block

door (CD)



connector (CN613)



harness

RB



(9 core) (CN605)

flexible flat cable

pull the tray by hand.



two screws

RT

(BVTP3 × 10)

gear

flexible flat cable (13 core)



(CN302)

flexible flat cable (27 core)



(CN906)

lever

Turn a gear by a driver



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

10

3-6. BACK PANEL BLOCK

connector (power cord)



(CN053)

screw



(BVTP3 × 10)

connector (CN601)



two screws



(B3)

four screws



(B3)

two screws



(B3)

back panel block



HCD-EC68USB

3-7. 3 CD MECHANISM BLOCK

flexible flat cable (27 core)



(CN202)

3 CD mechanism block



Cut the clamp.



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



flexible flat cable (13 core)



four screws



(BVTP3 × 10)

two tapes



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

11

HCD-EC68USB

3-8. BASE UNIT

 two screws (PTPWHM2.6)

 two screws (PTPWHM2.6)

 insulator

 two springs

(insulator)

 insulator

 two springs (insulator)

 insulator

– Bottom view –

3-9. OP BASE ASSY (KSM-213D)

 insulator



CD mechanism block

 base unit

 Remove four solders.

 OP base assy

(KSM-213D)

 flexible flat cable (16 core)
(CD board: CN301/optical pick-up block)

 CD board

12

3-10. BELT (DLM3A)

position of belt

belt



HCD-EC68USB

cover

belt

two belts (DLM3A)



four screws



13

HCD-EC68USB

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], [USB] and at last [
ously.

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

] button to turn the power

?/1

] simultane-

?/1

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 [USB] 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 [USB] 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 [USB] 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

?/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 [
off.

] button to turn the power on.

?/1

?/1

], and [

x

l m

] button to turn the power

– 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 [u] 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.

?/1

?/1

] simultaneously.

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.

?/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.

?/1

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

?/1

] button.

?/1

x

CHANGE-OVER THE AM TUNING INTERVAL

(Except AEP 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.

?/1

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

?/1

M L

] button, press the [

?/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 [USB SYNC REC/REC 1], [
– TUNING] and [

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

] button to turn the power on.

?/1

] simultaneously.

?/1

l m

COMMON TEST MODE

Procedure:

1. Press the [

2. Press three buttons of [USB SYNC REC/REC 1], [TUNING +

M L

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 [USB SYNC
REC/REC 1], [TUNING +
taneously.

] button to turn the power on.

?/1

], and [DISPLAY] simultaneously.

M L

], and [DISPLAY] simul-

]

14

HCD-EC68USB

[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 [u], [

[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 [u], [

[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.

?/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.

15

HCD-EC68USB

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 [u], [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 [u], [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 [USB SYNC REC/REC 1] 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
+

M L

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

] and the [

l m

– TUNING] buttons in this

M L

M L

], [x] and [DIS-

] button in this

] button to turn the

I/1

l

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

16

HCD-EC68USB

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 [u], [USB], and [DISPLAY] simulta-

neously.

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

] button to turn the power on.

?/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

?/1

17

HCD-EC68USB

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 [

] button to turn the power ON, and press the [Z]

?/1

button to open the CD disc tray.

3. Set disc (YEDS-18) on the trey and press the [u] 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.

18

HCD-EC68USB

HCD-EC68USB

1919

AM FREQUENCY COVERAGE ADJUSTMENT

(Except AEP model)

Adjustment Part Frequency Display

Reading on Digital

Voltmeter

L801 530 kHz 1.5 ± 0.1 V

Confi rmation 1,710 kHz 8 ± 0.5 V

AM FREQUENCY COVERAGE ADJUSTMENT (AEP model)

Adjustment Part Frequency Display

Reading on Digital

Voltmeter

L801 531 kHz 1.5 ± 0.1 V

Confi rmation 1,602 kHz 7.2 ± 0.5 V

AM TRACKING ADJUSTMENT (Except AEP model)

Adjust for a maximum reading on level meter

L805 530 kHz

AM TRACKING ADJUSTMENT (AEP model)

Adjust for a maximum reading on level meter

L805 531 kHz

FM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display

Reading on Digital

Voltmeter

L803 87.5 kHz 1.75 ± 0.1 V

Confi rmation 108 kHz 6.2 ± 0.5 V

FM TRACKING ADJUSTMENT

Adjust for a minimum reading on level meter

L804 98 MHz

Adjustment Location: MAIN board

FM DETECTOR ADJUSTMENT

Setting:

FUNCTION: FM

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.

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 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)

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)

HCD-EC68USB

HCD-EC68USB

2020

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

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

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 (1/3)

Q301

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

BUS1

BUS0

BUS2
BUS3

BUCK

BUS0 – BUS3,
BUCK, CCE, REQ

DATA SELECTOR

IC303

SELECT

42BUCK (CLK) 4

2

3

CCE

43XCCE

48PIO0

7

5

REQ

6

12

14

13

9

10

11

1

BUS

SWITCH

IC301

BUS

SWITCH

IC302

D

65AIN (PI4)
66BCKi (PI5)

BCK

A-IN

67LRCKi (PI6)

LRCK

51PIO3

GATE

49PIO1

ST-REQ

C

DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ

47AOUT2 (PO5)
63BCK (PO8)

CLOCK

DATA

(Page

22)

(Page 21)

(Page 21)

(Page 22)

HCD-EC68USB

HCD-EC68USB

2121

6-2. BLOCK DIAGRAM - USB Section -

BUS1

BUS0

BUS2
BUS3

BUCK

CCE

REQ

LB

I/O0 – I/O15

D0 – D15

S-RAM

IC921

39

UB

40

OE

41

WE

17

CE

6

79 D+

80 D–

77 USBOC

USB CONTROLLER

IC901

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

SYSTEM CONTROLLER

IC301 (2/3)

CN902
(USB)

3

2

1

D+

D–

78 USBPON

70 CS2
64

RD
65 WR
66 SRLLB
67 SRLUB

VBUS

DATA, CLOCK,
A-IN, BCK, LRCK,
GATE, ST-REQ

BUS0 – BUS3,
BUCK, CCE, REQ

VBUS POWER

ON/OFF SWITCH

IC915

5

1

4OUT

EN

3

FLG

IN

VBUS

+5V

93DATA
92BCK

BCK

A-IN

LRCK
GATE

ST-REQ

71LRCK
94GATE
97ST-REQ

55BUS0
56BUS1

88RXD1

29 I-USB-TXD/I-DMP-TXD87TXD1

34 O-USB-DI/5V-ON/O-TP-REC-MUTE2DI
30 I-USB-DO/I-DMP-5V-DET84DO
45 I-DMP-DET/O-USB-RST1/RESET

57BUS2
58BUS3
59/BUCK
60/CCE
96REQ

7 – 10, 13 – 16,

29 – 32, 35 – 38

18 – 25, 28 – 35

A0 – A15

A1 – A16

44 – 42, 27 – 24,

21 – 18, 5 – 1

37 – 43, 46 – 54

73

X2

75

X1

X901

9MHz

: USB

CLOCK

DATA

85DATA
86CLOCK

: CD PLAY

SIGNAL PATH

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

C

D

(Page 20)

(Page 20)

HCD-EC68USB

HCD-EC68USB

2222

SYSTEM CONTROLLER

IC301 (3/3)

INPUT SELECTOR,

ELECTRICAL VOLUME

IC602

4 19TUNER-L OUT-L

9SEL-L

12VOL-L

TUNER-L

A

6 CD-L

8 AUDIO-L

CD-L

B

M601
(FAN)

I-RST

54

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

: AUDIO IN

FAN M OTOR

DRIVE

Q601, 602

PROTECT

DETECT

Q603

4O-CD-ON

RELAY
DRIVE

Q619

PROTECT

DETECT

Q611, 612

PROTECT

DETECT

Q605, 606

OVER LOAD

DETECT

Q101, 102

D103

POWER AMP

IC101

+1.5V

REGULATOR

IC201

CD +1.5V

+9V

REGULATOR

IC601

+9V

+5V

REGULATOR

IC701

VBUS +5V

RELAY B+

+3.3V

REGULATOR

Q624

REGULATOR

CONTROL

Q622

VO LTAGE

DETECT

Q305, 306

+4V

REGULATOR

Q302 - 304

D631

+9V

CD +3.3V

+3V

REGULATOR

Q801

TUNER +3V

+5V

REGULATOR

Q802

TUNER +5V

SYSTEM +3.3V

D601

R-CH

D303

D055

D617

D628

D602, 606

MM

DC DETECT

Q618

STANDBY

SWITCH

Q608

J492

RY602

R-CH

PHONES

J491

AUDIO IN

SPEAKER

IMPEDANCE

USE 6Ω

+
–

–

+

R

L

TB602

R-CH

R-CH

2

O-AMP-ON

RY001 (AEP)

RY002 (EXCEPT AEP)

PT001 (AEP)

PT002 (EXCEPT AEP)

SUB POWER TRANSFORMER

PT003 (EXCEPT AEP)

PT004 (AEP)

MAIN POWER

TRANSFORMER

VSTBY

+VH

-VH

(AC IN)

RECT

D051, 052

RECT

D607 - 610

RECT

D629, 630

I-P-MONI

36

RELAY
DRIVE

Q604

• Abbreviation
AR : Argentina model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian model
MX : Mexican model

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

VOLTAGE

SELECTOR

S001

(E2, E51)

(AEP, MX, AR)

(Page 20)

(Page 20)

6-3. BLOCK DIAGRAM - MAIN Section -

Ver. 1.1

HCD-EC68USB

HCD-EC68USB

2323

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
d : USB

• Abbreviation

AR : Argentina model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican 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:

Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)

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

Caution:

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

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

Ver. 1.1

C

Q

B

E

Q

B

CE

These are omitted.

These are omitted.

KEY POWER board

USB board

KEY CD board

MAIN board

PANEL board

LOW AMP board

PT board

CD board

JACK board

REG board

USB CONN board

HCD-EC68USB

6-4. PRINTED WIRING BOARD - CD Board -

12345678910

A

CD BOARD (COMPONENT SIDE)

C401

B

C405

C

R213

C202

C201

R216

R121

R211

C206

R201

C212

C207

135

4

C205

C204

D

IC201

E

R212

R214

R112

R111

C115

X102

F

• See page 23 for Circuit Boards Location.

R415

R118

C153

R114

C108

R119

C133

R155

C130

C128

C112

X102

C309

Q301

R303

R302

E

R304

R301

C307

1-872-620-

• : Uses unleaded solder.

CD BOARD (CONDUCTOR SIDE)

M401

(SLED)

C125

C124

TP124(VC)

C122

R140

C123

R142
R143

(RFI)

C143

C141

C144

C148

C137

C138

C139

C140

C142

R144

C146

C147

C149

R148

C150

R151

TP121

C106

C306

11

(11)

R135

R146

R136

C145

R134

C118

R139

R145

R147

R149

R150

R130

C105

C104

CN301

R129

R128

C100

C117

C136

C135

C120

C107

C119

M

IC101

C102

C101

C103
R101

C126

C127

C113

R109

C303

R108

R102

R106

C301

R402

R105

C302

R414

C109

C110

R104

C132

S201

(LIMIT)

R154

R405

C404

C403

IC401

M

R408

R224

R210

R209

R110

R218

R219

R220

R221

R153

R222

C116

R223

R157

R156

C217

R208

R207

R206

R205

R204

R203

CN202

C151

C152

R202

M402

(SPINDLE)

S

USB BOARD

CN906

(Page 26)

HCD-EC68USB

OPTICAL PICK-UP

BLOCK

(KSM-213DCP)

1-872-620-

11

(11)

G

2424

HCD-EC68USB

HCD-EC68USB

2525

IC B/D

S

USB

BOARD

CN906

2

1

IC B/D

OPTICAL
PICK-UP

BLOCK

(KSM-213DCP)

M

M

CLOCK
GATE

ST_REQ
GPIN/AIN
SF SY/BCKIN
ZDET/LRCKIN
M-MUTE
MGND
VM (7V)
DVDD (3.3V)
D-OUT
DGND
SBSY
REQ

BUCK
BUS3
BUS2
BUS1
BUS0

AGND

DACGND

AVDD (3.3V)

L-OUT

R-OUT

CCE

DATA

R224 100

R121
100

R108

R109 100

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

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

CN202

C110

R111

C115

R155

C109

C132

R104

C123

C122

C139

C150

R136 R135

R134

C112 C108

R119

R118

C136

C107

R130

R144

C144

C147

C140

C137

C141

C142

C106

R302

C306

C303C302

R405

R402

R408

R414

C207

C152

C206

IC401

1M

1M

100
10V

2.2

0

10k

C212

100k

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

0.0022

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

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

0.0022

1

BA5826SFP-E2

SP-

SP+

SL+

SL-

100

R213 100

R214 100

R216

100

1M

1k

16.9344MHz

TC94A70FG-008 (S, D)

5p

5p

27P

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)

0.1

C217
100k

RST

(Page 27)

6-5. SCHEMATIC DIAGRAM - CD Board -

• See page 40 for waveforms. • See page 40 for IC Block Diagrams. • See page 42 for IC Pin Function Description.

HCD-EC68USB

• Semiconductor
Location

Ref. No. Location

D903 C-1
D904 C-1
D951 A-4
D952 A-4

IC301 D-3
IC302 D-2
IC303 D-2
IC901 C-2
IC915 C-1
IC921 C-3

Q301 D-3

6-6. PRINTED WIRING BOARDS - USB Section -

123456 7

USB CONN BOARD

A

C951

ET951

CN951

1

2

6

7

C950

CN950

(USB)

JR951

14

1-875-497-

B

(CHASSIS)

USB BOARD (COMPONENT SIDE)

• See page 23 for Circuit Boards Location.

(SUFFIX-12/-13)

USB CONN BOARD

CN951

1

2

6

7

C951

ET951

12, 13

(12, 13)

(CHASSIS)

JR951

• : Uses unleaded solder.

D903

C950

D951

D952

14

CN950

(USB)

1-875-497-

USB BOARD (CONDUCTOR SIDE)

(SUFFIX-14)

14

(14)

R1

MAIN

BOARD

CN613

R2

(SUFFIX-14)(SUFFIX-12/-13)

(Page 29)(Page 28)

MAIN

BOARD

CN613

C

D

E

R979

R976

TP942

TP941

TP915

C918

TP900

TP903

TP904

TP906

C936

TP966
TP968
TP967

TP938

TP940

TP935

TP939

R932

TP937

TP907

TP908

TP965
TP964

TP927
R978

TP936

D903

D904

TP926

IC915

TP914

5

1

34

R921

R934

TP928

R310

R361

R362

TP929

TP933

R920

R925

R933

16

C363

R926

R947

R945

9

TP934

R922

R938

C912

C914

R923
R924

R916

C909

C913

R928

100

8

IC303

1

TP925

C910

76

TP924

R919

C908

75

IC901

1

IC302

87

14

C362

TP917

TP921

TP922

TP923

TP919

TP918

R944

R943

TP911

51

25

1

TP916

R942

50

26

TP912

R941

C907

R957

R956

R954

R952

TP909

R958

R953

IC301

1

7

C361

TP963

R955

R951

TP930

23

IC921

44

R959

R960

R961

R963

R991

Q301

14

BE

8

R988

TP950

R962

TP952

22

1

R964

R965

TP953

TP951

TP910

C922

TP913

R966

R977

TP954

TP949

1-875-503-

TP955

11

(11)

C905

2

R913

R903

C903

1

M2

R902

R975

C904

MAIN BOARD

(Page 29)

R904

R905

R972

R974

C906

C902

CN608

(SUFFIX-14)

R907

R973

R906

R971

R970

R950

R305

R917

C915

R304

R306
R307

1

2

X901

R983

C901

R901

R937

R915

C921

20

21

CN907

M1

MAIN BOARD

CN608

(Page 28)

(SUFFIX-12/-13)

R308

R312

R981

S

CN901
12

C916

C920

R985

R986

R984

R309

CN906

R989
C923

W901

R982

CD BOARD

CN202

(Page 24)

CN902

1-875-503-

2

4

C937

2

6

1

5

R990

1

CN903

7

27

26

(CHASSIS)

T1

T2

T3

11

(11)

(SUFFIX-12)

PANEL

BOARD

CN307

(Page 34)

PANEL

BOARD

CN307

(Page 35)

PANEL

BOARD

CN307

(Page 36)

(SUFFIX-14)

(SUFFIX-13)

HCD-EC68USB

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

2626

HCD-EC68USB

HCD-EC68USB

2727

BOARD

S

CD

CN202

BOARD

CN608

M

MAIN

(2/2)

BOARD

T

PANE L

CN307

BOARD

CN613

R

MAIN

(1/2)

IC B/D

IC B/D

11

00

00

00

00

0.2 0.2

3.1

3.1

0.2 0.2

0.2 0.2

0.2 0.2

0.2 0.2

0.2 0.2

0.2 0.2

0.2 0.2

3.1 3.1

3.1 0

3.1 0

00

00

00

3.1

3.1

2.9

2.9

2.9

2.9

3.1

3.1

3.1

3.1

2.9

2.9

2.9

2.9

3.1

0

2.9

2.9

3.1

2.9

3.1

3.1

2.9 3.1

3.1

2.9

2.9

2.9

2.9

0

0

0

0

3.1

3.1

3.1

3.1

3.1

3.1

3.1

3.1

0

0

0

0

0

3.1

0

0

0

0

0

0

0

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

3.1

3.1

0

0

0

0

0

0

0

3.1

3.1

3.1

3.1

1.6

3.1

3.1

3.1

3.1

3.1

3.1

1.43.1

1.6

00002.9

2.9

2.9

2.9

3.1

3.1

3.1

3.1

3.1

3.1

3.1

0.1

3.103.1

3.1

0

3.1

3.1

3.1

0

0

0

0

0.2

0.2

0.2

0.2

0.2

0.2

0.2

0.2

5

5

3.1

3

16

15

14

13

12

11

10

98

7

6

5

4

3

2

1

TC74VHC157FT(EKJ)

IC303

SELECT

1A

1B

1Y

2A

2B

2Y

GND

3Y

3B

3A

4Y

4B

4A

ST

VCC

14

13

12

11

10

9

87

1

2

3

4

5

6

TC74HC4066AFT(EL)

IC302

GND

VCC

10k

R362

14

13

12

11

10

9

87

1

2

3

4

5

6

TC74HC4066AFT(EL)

IC301

GND

VCC

10k

R361

0.1C363

0.1C362

0.1C361

22pC910

0.1

C916

0R916

TP907

16V10C904

TP903

27R924

16V

10

C902

100

R919

27R923

0.1C907

0.1

C906

10kR920

4.7kR903

16V

10

C903

0.1C921

15kR925

10k

R901

0.1

C901

100k

R921

4.7kR907

0R928

0.1C908

4.7kR906

4.7kR902

0.1C905

4.7kR904

15kR926

4.7kR905

0R933

144

43

42

41

40

39

38

2

3

4

5

6

7

37

36

35

34

33

8

9

10

11

12

32

31

30

29

28

27

13

14

15

16

17

18

1926

25

24

23

20

21

22

IS61LV6416-10TLT

IC921

A15

A14

A13

A12

A11

CE

I/O0

I/O1

I/O2

I/O3

VDD

GND

I/O4

I/O5

I/O6

I/O7

WE

A10

A9

A8

A7

NC

NC

A6

A5

A4

A3

NC

I/O8

I/O9

I/O10

I/O11

VDD

GND

I/O12

I/O13

I/O14

I/O15

CB

UB

OE

A2

A1

A0

TP904

0.1C914

0.1C915

TP908

0R917

100R986

100R985

100R983

100R981

100R932

100R979

100R978

100

R977

100R938

100R937

100R976

4.7kR950

10k

R934

4.7k

R947

4.7kR945

22pC909

100kR944

100kR943

100kR942

100kR941

TP914

TP915

100k

R922

0.1

C920

10k

R991

10k

R988

2SC3052EF-T1-LEF

Q301

100R304

100R309

100R306

100R310

100R308

100R305

100R307

100k

R312

100R972

100R974

100R973

100R971

100R975

100R970

100R982

100R984

TP916

TP917

TP919

TP921

TP922

TP923

TP924

TP925

TP927

TP926

TP928

TP929

TP930

TP918

TP933

TP934

TP935

TP936

TP937

TP938

TP939

TP940

TP941

TP942

TP949

TP950

TP951

TP952

TP953

TP954

TP955

TP963

TP966

TP965

TP964

TP967

TP968

TP906

TP912

TP911

TP910

TP909

TP913

54

321

R5523N001B-TR-F

IC915

EN

GND

FLG IN

OUT

R915 10k

100kR913

0

R989

0

R990

C918 0.1

C912 10p

9MHz

X901

0.1C913

0.1C922

1

2

3

4

5

6

7

7P

CN903

GND

GND

GND

D+

D-

VBUS

VBUS

1

2

3

4

5

5P

CN902

USB-SO

USB-SI

USB-DO

USB-DI

SEL1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

21P

CN907

USB-RST

M-MUTE

M-GND

VM+7V

DVDD

D-OUT

D-GND

SBSY

REQ

CCE

BUCK

BUS3

BUS2

BUS1

BUS0

RST

A-GND

L-OUT

DAC-GND

R-OUT

AVDD+3.3V

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

27P

CN906

1

2

2P

CN901

VBUS-5V

VBUS-GND

47R951

47R952

47R953

47R954

47R955

47R956

47R957

47R958

47R959

47R960

47R961

47R962

47R963

47R964

47R965

47R966

TP900

C923

0.047

1 2 3 4 5 6 7 8 9 10111213141516171819202122232425

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51525354555657585960616263646566676869707172737475

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

TMP92CD28AFG-6UJ5

IC901

USB-RST

I-USB-DI

INT1

INT2

INT3

DVCC3B

XT1

XT2

PWE

DVSS1B

DVCC1B

RVOUT1

RVIN

RVIN

RVOUT2

DVCC1A

DVSS1AD0D1D2D3D4D5D6D7

DVSS

DVCC

D8

D9

D10

D11

D12

D13

D14

D15

A0

A1

A2

A3

A4

A5

A6

A7

DVSS

DVCC3A

A8

A9

A10

A11

A12

A13

A14

A15

A16

BUS0-U

BUS1-U

BUS2-U

BUS3-U

BUCK-U

CCE-U

A23

DVSS

DVCC3A

RD

SRWR

SRLLB

SRLUB

TA0IN

BOOT

SRAM-CS

LRCK

AM1

X2

DVSS

X1

DVCC3A

USBOC

USBPON

D+

D-

AM0

X1USB

DVSS

O-USB-DO

DATA

CLK

O-USB-SO

I-USB-SI

SPCLK

SO0

SI0

BCK

A-IN

GATE

DVCC3A

REQ-U

ST-REQ

PG1

PG0

DVSS

100pC936

100pC937

MAZ8051GMLS0

D904

MAZ8051GMLS0

D903

MAZ8051GMLS0

D952

(SUFFIX-14)

MAZ8051GMLS0

D951

10V

220

C950

0.1

C951

4P

CN950

1

2

3

4

1

2

3

4

5

6

7

7P

CN951

VBUS

VBUS

D-

D+

GND

GND

GND

E

ET951

BUS2-Z

BUS1

BUS0

CCE-U

BUS0-U

BUS1-U

BUS2-U

CCE-Z

BUS3-U

REQ

CCE

BUS0-Z

BUCK

BUS1-Z

D7

A7

D6

LB

A8

UB

A1

RD

A9

A4

A5

A5

A8

WR

SRAM-CS

A4

A12

A13

BCK

A3

REQ-U A14

A15

D5

A16

GATE

A2

D4A9D3

A12

A10

A1

D2

A11

A7

D1

A11

D0

A6

A3

A2

DATA

A10

A6

LRCK

CLK

I-USB-DI

I-USB-SI-RXD

A-IN

GATE

REQ

ST-REQ

USB-RST

O-USB-DO

D8

D9

D10

D11

D12

D13

D15

D14

BUS3

BUS2

BUCK-Z

I-USB-DI

I-USB-SI-RXD

LRCK

BUS0-Z

BUS1-Z

BUS2-Z

BUS3-Z

BUCK-Z

CCE-Z

REQ-Z

BUS3-U

BUS0-U

BUS2-U

BUS1-U

BUCK-U

CCE-U

BCK

O-USB-SO-TXD

O-USB-DO

SEL-U

REQ-U

BUS3-Z

BUCK-U

D8

D9

D10

D11

D12

D13

D14

D15

D7

D6

D5

D4

D3

D2

D1

D0

A13

A14

A15

A16

DATA

CLK

ST-REQ

BUS0

BUS1

BUS2

BUS3

BUCK

CCE

USB-RST

A-IN

REQ-Z

SEL-U

RD

WR

LB

UB

SRAM-CS

O-USB-SO-TXD

S-RAM

IC921

USB CONTROLLER

IC901

VBUS POWER

IC915

BUS SWITCH

IC301

BUS SWITCH

IC302

DATA SELECTOR

IC303

W901

(CHASSIS)

USB BOARD

INVERTER

ON/OFF SWITCH

D-

(CHASSIS)

VBUS

USB CONN BOARD

GND

(USB)

D+

B

K

208

E

71221 9

A

F

21156

I

1814

G

10

C

34 16

D

13 17 19

J

H

511

CLOCK

GATE

ST_REQ

GPIN/AIN

SF SY/BCKIN

ZDET/LRCKIN

M-MUTE

MGND

VM (7V)

DVDD (3.3V)

D-OUT

DGND

SBSY

REQ

BUCK

BUS3

BUS2

BUS1

BUS0

AGND

DACGND

AVDD (3.3V)

L-OUT

R-OUT

CCE

DATA

RST

(Page 30)

(Page 25)

(Page 37)

6-7. SCHEMATIC DIAGRAM - USB Section -

(Page 31)

• See page 40 for waveforms. • See page 40 for IC Block Diagrams. • See page 42 for IC Pin Function Description.

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-14.

HCD-EC68USB

• Semiconductor
Location

Ref. No. Location

D601 E-2
D602 E-6
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
D704 G-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
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
Q801 B-5
Q802 B-5

6-8. PRINTED WIRING BOARD - MAIN Board (Suffi x-12/-13) -

12345678910

MAIN BOARD

A

FL803

JW743

D804

L804

C847

R846

C846

JW739

JW729

JW728

JW726

T801

R832

JR602

JW725

D806

CN801

ANTENNA

FM/AM

13

D805

B

JW682

C848

C

CF801

D

JW650

JW652

E

JW651

JW662

D601

F

TB602

L

SPEAKER

IMPEDANCE

G

USE 6Ω

R

R611

C609

C610

R612

H

R609

JW654

L603

JW653

L604

ET601

(CHASSIS)

R610

JW659

JW660

R639

R640

C617

C618

R647

JW672

JW657

JW658

JW661

RY602

C607

C608

R615

C620

RY601,RY602

L805

JW744

R847

JW742

D801

R838

R843

TP690

C836

C819

C841

C835

R842

JW738

C844

R844

R845

C845

JR601

C843

FL801

JW723

C850

JW655

D604

JW665

BE

R643

R645

JW670

JW722

Q604

JW741

L801

36

1

JW779

JW667

R839

JW730
JW724

JW656

C837

C834

C833

R826

R837

C820

JW737

R829

IC801

C830

JW666

R638

R641

R642

R827

JW736

C832
C829

JW803

3

D802

C826

JW801

R830

JW673

CN601

R648

R649

D803

JW735

JW804

R831

R806

JW740

R841

C838
C840

C823

L803

R840

R825

C824

C828

R823

JW802

C806

C827

C821

C805

R819

C822

R818

R817

C804

19

18

C808

C807

X801

JW721

C831

R605

JW669

JW719

C622

R815

C817

C815

C816

L802

R836

Q601

R626

D622

E

1

B

R603

R627

R601

R604

C601

5

1

1

JW708

CN633

R650

R651

R728

C626

LOW AMP

BOARD
CN104

(Page 32)

• See page 23 for Circuit Boards Location.

M601

R801

R822

JW663

R727

3

R824

JW731

C814

BE

G1

Q602

M

(FAN)

1

R804

R803

R810

C803

R812

BE

R814

R816

R820

R821

R726

C602

C628

Q801

R805
JW732

C809

C811

JW760

JW720

C802

R811

R807

R809

BE

Q802

R813

JW733

JW647

JR613

C810

JW734

JW750

R724

JW751

R725

R629

C614

C613

R630

D621

Q603

BE

JW649

D605

R692

JW677

JW781

R662

D791

R658

R792

R791

D609

JW684

R802

R808

JW609

R667

Q608

D614

JW611

JW613

E

B

R666

JW640

C630

R672

JW674

JW752

JW641

JW706

JR614

R670

R637

Q611

BE

C629

C619

R628

JR615

BE

Q606

C696

R614

C695

JW765

D606

JW764

D602

C612

R621

D610

JW766

R616

JW690

D608

R622

JW683

D607

JW689

C623

C627

BOARD

(Page 38)

JW703

BE

BE
Q605

R652

C611
R620

PT

CN051

R669

JW620

Q612

R613

JW780

JW685

R646

R619

R625

(EXCEPT AEP)

J1

JW702

C621

Q619

BE

D630

D611

JW612

JW705

(AEP)

C642

CN603

R718

R691

D629

D612

2

R717

4

TP619

JW701

8

1

1

5

C631

R617

C699

R732

C663

JW678

R693

D618

R719

R623

CN604

JW763

ET602

(CHASSIS)

R731

D619

JW770

3

R618

R624

JW610

C684

D617

R690

JW675

JW775

C700

R752

C664

C704

C636

R689

BE

JW762

JW761

JW686

C639

Q622

H1

R684
C637
C638

R754

C641

R686

D615

C669

D631

1

JW788

D1

(Page 33)

R787

D620

C640

R788

R681

C685

C687

R687

R685

R720

BOARD

W610

LOW AMP

BOARD

CN102

C644

C633

C634

C788

C789

R677

R678

D628

R716

Q624

L701

JW639

REG

C649

B

E

C760

D701

D704

JW687

14

IC602

15

R750

C686

R729

BE

R722

R751
R749
C674

R760

(Page 32)

JW607

JW608

R704

C647

R700

C655

C656

C650

1

28

C662

JW625

C660

R753

R707

R706

JW630

R676

JW629

R673

C632

Q618

JW769

JW718

JW717

JW711

IC701

5

24

1

R763

JW772

C761

• : Uses unleaded solder.

JR603

JR604

JW604

JW602

JW603

JW606

JW605

JR607

R697

JR608

C666

R715

C713

JW627

JW628

C675

C694

JW783

C692

2

1

C790

JW704

JW712

C682

JW716

JR617

JR609

C680

C693

JW784

C690

JW774

JR618

CN608

JW619

JW787

JW621

C676

JR616

JW624

C681

JW626

JW785

C689

C691

R675

JW616

JW786

C683

CN607

C679

JW700

JW615

C703

C671

27

JW713

JW777

26

JW623

JW633

JW634

JW636

2

1

JW697

R661

20

21

C673

JW680

R674

JW681

31

CN613

TP657

JW635

JW638

C646

C665

JW771

C648

JR610

JW631

JW768

JW767

R761

C659

JW632

JW773

R762

C658

C645

C661

C657

JW710

JW691

JW715

C652

JR605

JR606

C654

R696

R709

R708

C667

JR611

JW782

JR612

JW601

JW617

JW618

JW622

C714

JW637

JW709

CN605

2

8

JW679

JW676

JW668

JW699

1-875-488-

(SUFFIX-12)

L1

(Page 34)

PANE L

BOARD

CN304

R660

PANE L

BOARD

CN304

PANE L

BOARD

CN304

(Page 26)

USB BOARD

CN907

(SUFFIX-13)

L2

(Page 35)

(SUFFIX-14)

L3

(Page 36)

M1

(SUFFIX-12/-13)

C1

1

JACK

BOARD

(Page 33)

C2

JACK

(SUFFIX-14)

R663

9

JW664

BOARD

(Page 33)

USB BOARD

CN901

(Page 26)

R1

12, 13

R644

(12, 13)

HCD-EC68USB

I

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

2828

HCD-EC68USB

6-9. PRINTED WIRING BOARD - MAIN Board (Suffi x-14) -

12345678910

MAIN BOARD

A

CF801

FL803

JW743

D804

L804

C847

R846

R842

C846

JW739

JW729

JW728

JW726

T801

R832

JR602

JW725

D806

CN801

ANTENNA

FM/AM

13

D805

B

JW682

C848

C

D

JW650

JW652

E

JW651

JW662

D601

F

TB602

L

SPEAKER

IMPEDANCE

G

USE 6Ω

R

R611

C609

C610

R612

H

R609

JW654

L603

JW653

L604

ET601

(CHASSIS)

R610

JW659

JW660

R639

R640

C617

C618

R647

RY601,RY602

JW672

JW657

JW658

JW661

RY602

C607

C608

R615

C620

JW744

C841

R847

JW742

R843

TP690

JR601

R845

JW655

D604

JW665

L805

D802

R826

R841

C838

D803

R827

JW741

C837

D801

R838

C836

C835

JW738

R844

C845

JW723

C850

R645

JW670

C843

FL801

BE

R643

R837

C834

C819

C820

L801

JW737

JW736

R829

R839

C844

36

IC801

1

JW730
JW724

C830

JW722

JW803

C833

JW779

JW656

JW666

R638

R641

R642

Q604

JW667

C826

JW801

C832
C829

3

JW673

C840

L803

R840

JW735

C828

R823

JW802

C827

C821

R819

R818

R817

19

18

C807

X801

JW721

JW804

C817

C816

R830

R836

C831

CN601

1

R603

R605

C601

JW669

JW719

CN633

R651

R728

R648

R649

C622

• See page 23 for Circuit Boards Location.

M601

M

(FAN)

1

3

R804

R831

R806

JW740

C823

R825

C824

C806

C805

C822

C804

C808

L802

Q601

R626

E

B

R601

R604

5

1

1

R650

C626

LOW AMP

BOARD

CN104

(Page 32)

R801

R803

R810

C803

R822

R811

R807

R812

R809

BE

BE

R824

Q801

R813

JW733

R814

JW647

R805

JW731

JW732

C809

JR613

R816

R815

C811

C810

R820

C815

R821

JW734

C814

D622

R627

JW663

JW708

R727

Q602

BE

JW750

R726

R724

JW751

R725

R629

C614

C613

R630

D621

Q603

BE

JW649

C602

D605

JW677

JW760

JW781

JW720

R662

R658

R792

R791

D609

JW684

C628

G2

R802

C802

R808

JW609

Q802

JW752

JR615

R692

C696

D791

D610

D608

D607

C627

JR614

R672

C695

Q611

JW640

BE

C619

Q606

BE

JW683

R666

JW674

JW641

R637

R628

D606

D602

JW766

R616

JW689

C630

JW706

R670

R614

JW765

C612

R622

Q608

C629

R621

C623

B

JW703

BE

BE

Q605

R652

JW764

C611
R620

JW690

PT
BOARD
CN051

E

R669

JW620

Q612

R613

JW780

R667

D614

JW613

R646

JW685

J2

JW612

JW702

JW705

R619

R625

C621

Q619

BE

(EXCEPT AEP)

D630

D611

(AEP)

C642
R691

CN603

D629

D612

R718

R717

2

TP619

JW701

JW611

4

5

8

1

1

C631

R617

C699

R732

C663

R693

D618

R719

R623

CN604

JW763

(CHASSIS)

JW678

ET602

C636

JW610

C700

R731

C684
R752

C664

D617

R690

JW675

BE

JW775

C704

D619

JW770

3

JW762

JW761

R618

R624

JW686

(Page 38)

H2

C639

R787

R788

R684
C637

C638

C685

R754

C687

C641

R689

R687

R685

R686

D615

Q622

R720

C669

D631

D620

1

JW788

D2

(Page 33)

LOW AMP

C640

R681

C634

Q624

L701

JW639

REG

BOARD

W610

BOARD
CN102

C644

C633

C788

C789

R677

R678

D628

R716

• : Uses unleaded solder.

(Page 32)

JW604

JW603

JW606

JW605

JR607

R697

JR608

C666

JW616

JW619

JW787

JW621

R715

JW624

JR609

C713

JW626

JW627

JW628

C675

C676

JR618

C694

C693

JW783

JW785

JW784

JW786

C681

C690

C692

C683

CN608

2

C790

JW704

JW712

JW716

C682

JR617

C680

JW774

C689

C691

R675

JR616

B

D701

D704

C649

E

JW687

14

15

R750

C686

C632

BE

C760

JW607

JW608

R700

C650

IC602

R751

R749
C674

R706

R676

R673

Q618

R760

R722

C761

R704

C655

C656

1

C662

JW625

R753

JW630

JW711

IC701

JW772

C647

28

R763

C657

C658

C648

C646

C645

C665

JR610

R707

C661

JW629

JW631

JW632

JW773

JW769

JW768

JW771

JW767

JW718

JW717

JW710

JW715

5

R762

24

1

JW691

R761

C652

JR605

JR606

C654

R696

R709

R708

C667

JR611

JW782

1

JR612

CN607

C679

JW700

JW615

C703

C671

JR604

JW602

27

JW713

JW777

JR603

TP657

26

JW623

JW633

JW634

JW635

JW636

2

1

JW638

JW697

R661

20

21

JW680

R674

JW681

31

CN613

JW601

JW617

JW618

JW622

C714

JW637

JW709

CN605

2

8

JW679

JW676

JW668

JW699

1-875-488-

• Semiconductor
Location

Ref. No. Location

D601 E-2
D602 E-6
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

(SUFFIX-12)

L4

PANE L

(Page 34)

BOARD

CN304

R660

PANE L
BOARD

CN304

PANE L

BOARD

CN304

(Page 26)

USB BOARD

CN907

(SUFFIX-13)

L5

(Page 35)

(SUFFIX-14)

L6

(Page 36)

M2

(SUFFIX-12/-13)

C3

1

JACK

BOARD

(Page 33)

C4

JACK

(SUFFIX-14)

R663

9

JW664

BOARD

(Page 33)

USB BOARD

CN901

(Page 26)

R2

14

R644

(14)

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
D704 G-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
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
Q801 B-5
Q802 B-5

I

HCD-EC68USB

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

2929

HCD-EC68USB

HCD-EC68USB

3030

BOARD

CN102

LOW

H

AMP

AMP

G

LOW

CN104

BOARD

BOARD

PT

J

CN051

MAIN

(2/2)

BOARD

1

BOARD

REG

W610

D

C

JACK

BOARD

BOARD

USB

CN901

R

IC B/D

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

18

5.113.2

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

L603

L604

10

R615

10

R612

10R611

10

R647

0.1

C607

0.1

C617

0.1

C608

0.1

C618

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

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 (EXCEPT AEP)
15k (AEP)

∗

∗

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

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-GND

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

CN603

R603

4.7

1k

R693

4.7k

R692

R673

0

10k

R643

2.2k

R645

C622

C626

2200 50V

2200 50V

2W

470

R658

2W

470

R662

D604

MA2J1110GLS0

MA2J1110GLS0

D614

MA2J1110GLS0

D605

MA2J1110GLS0

D628

E

ET601

JW751 JW752

MC2836

D606

100k

R604

25V

22

C602

E

ET602

RY602

2A02MD611

2A02MD612

1k

R663

10V

47

C714

1N4002B

D629

1N4002B

D630

C609
4700p

C610

4700p

R638

R641

R642

R605 56

22k

R687

4.7k

R685

0

R760

MA2J1110GLS0

D631

100k

R791

220kR792

MA2J1110GLS0

D791

O-POWER

USB5V-ON

HP-L

HP-R

AMP-R

AMP-L

SP-RELAY

AMP-ON

AUDIO-L

HP-R

HP-L

O-POWER

PROTECT

PROTECT

AMP-ON

SP-RELAY

I-P-MONI

PROTECT

CD-AVR

AUDIO-R

VSTBY

1

2

3

CN613

3P

VBUS-5V

VBUS-GND

VBUS-5V (NC)

1

3

2

MAIN BOARD (1/2)

(CHASSIS)

(CHASSIS)

1

OUT

GND

3

IN

+

-

-

+

R

L

TB602

(FAN)

M

M601

PROTECT

DETECT

Q601, 602

FAN MOTOR DRIVE

STANDBY

SWITCH

PROTECT

DETECT

Q611, 612

RELAY DRIVE

(AEP)

(SUFFIX-12/-13)

(EXCEPT AEP)

Q605, 606

PROTECT DETECT

RELAY DRIVE

DC DETECT

68 68 68

USE 6Ω

IMPEDANCE

SPEAKER

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

100uH

L701

16V

470

C761

25V

100

C760

4.7kR761
33kR762

1k

R763

RK36LF-A4D701

12345

IC BD9701CP-V5

IC701

VCC

OUT

GND

INV

STBY

JW788

JW772

RK36LF-A4

D704

IC701

+5V REGULATOR

(SUFFIX-12/-13)

(SUFFIX-14)

(Page 39)

(Page 33)

(Page 27)

(Page 32)

(Page 32)

6-10. SCHEMATIC DIAGRAM - MAIN Board (1/2) -

• See page 40 for IC Block Diagrams.

(Page 33)

(Page 31)

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

HCD-EC68USB

HCD-EC68USB

3131

(SUFFIX-12/-13)

(SUFFIX-14)

(SUFFIX-12/-13)

(SUFFIX-14)

PANE L
BOARD

CN304

L

USB

BOARD

CN907

M

MAIN

1

BOARD

(1/2)

21

IC B/D

IC B/D

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

1N4002B

D619

1N4002B

D620

10V

220

C669

100

R722

1kR716

2SC3052F-T1-LF

Q622

22k

R720

10V

470

C673

(SUFFIX-12/-13)

(SUFFIX-12/-13)

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

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

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

27P

CN607

16V

C671

100

C838

1000p

C827

0.047

C820

5p

C816

0.01

4700p

4700p

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

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

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

R661 0

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

USB5V-ON

I2C -DATA

I2C-CLK

AMP-R

AMP-L

TUNER-L

1C654

1C652

CD-AVR

4700p

C790

VSTBY

1

3

2

MAIN BOARD (2/2)

I/O-I2C-DATA

I-TU-DO

I-TU-ANSD

O-TU-CLK

O-TU-DI

O-TU-CE

V-STB Y

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-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

+3.3V

REGULATOR

REGULATOR CONTROL

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

USB-RST

M-MUTE

M-GND

VM+7V

DVDD

D-OUT

D-GND

SBSY

REQ

CCE

BUCK

BUS3

BUS2

BUS1

BUS0

RST

A-GND

L-OUT

DAC-GND

R-OUT

AVDD+3.3V

(Page 27)

(Page 37)

(Page

30)

6-11. SCHEMATIC DIAGRAM - MAIN Board (2/2) -

• See page 40 for waveforms. • See page 40 for IC Block Diagrams.

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

HCD-EC68USB

6-12. PRINTED WIRING BOARD - LOW AMP Board -

1234

LOW AMP BOARD

(SUFFIX

-12/-13)

G1

MAIN

A

BOARD

CN633

(Page 28)

R133

B

R126

R128

B

(SUFFIX-14)

G2

MAIN

BOARD

CN633

(Page 29)

15

CN104

JW136

• See page 23 for Circuit Boards Location.

JW132

JW131

JW133

C120

Q102

Q101

R135

R136

R132

B

E

C119

R134

E

C125

R131

R129

D101

JW135

R130

C126

C123

R125

R127

JW134

C124

1

R142

IC101

R113

R145

C105

C109

R109

R122

C101

R107

C128

• : Uses unleaded solder.

D103

C110

R110

JW137

R105

C102

R104

R108

C108

R112

JR132

R114

R101

R102

C107

R111

R103

C116

R106

C103

C104

C106

15

R146

R123

CN102

1

2

4

5

1-875-495-

(SUFFIX

-12/-13)

(Page 28)

H1

MAIN

BOARD

CN603

(SUFFIX-14)

(Page 29)

H2

MAIN

BOARD

CN603

12, 13, 14

(12, 13, 14)

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

6-13. SCHEMATIC DIAGRAM - LOW AMP Board -

LOW AMP BOARD

A

MC2838-T112-1

B

C

D101

Q101,102

OVER LOAD DETECT

R135

2.2k

Q101

2SA2026

R136

2.2k

0

Q102

2SA2026

769531 842

IC101

POWER AMP

IC101

-PRE

-VCC

+VCC

LO+

198765432151413121110

0.1

-36.8

C120 100 50V

R126

R128

36.7

220

220

C123

R131

R133

22k

1.2k

00

R129

0.22
2W

C125

R130

0.22

C126

0.1

2W

0.1

0

R134

22k

0

0

-35.2

C124

1.2kR132

LO-

0

0

220

R125

220

R127

0.1

100 50V

C119

RO+

0

RO-

0

+PRE

35.2

SUB

R142

LI-

LI+

ST-BY

GND

0

0

C105

0

100p

1k

R109

470

R111

25V47

C107

RI-

2

0

R110

3p

47k

R113

C109

R112

C108

STK433-060 (EXCEPT AEP)

RI+

STK433-070 (AEP)

0

R146

100p

C106

R145

470

1k

47k

470

R114

25V47

470

C103
470p

R107

47k

3p

C101

50V

C110

R105

4.7k 4.7k

R103

∗

C104
470p

R108

47k

C102

1

1

50V

R106

C128

0.1

R104

∗

∗R103, 104

2.7k (AEP)

3.3k (EXCEPT AEP)

HCD-EC68USB

D

CN104

-VH

+VH

5P

5

4

3

2

1

OUT-L

G

MAIN MAIN

BOARD

(1/2)

CN633

(Page 30)

OUT-R

PA- GND

TP105

TP104

TP103

TP102

TP101

D103

MA2J1110GLS0

R122

100

C116

4700p

R101

0

R102

R123

0

1k

TP111

TP110

TP109

TP108

TP107

CN102

5P

5

4

3

2

1

IN-R

A-GND

IN-L

AMP-ON

PROTECT

(Page 30)

3232

H

BOARD

(1/2)

CN603

HCD-EC68USB

6-14. PRINTED WIRING BOARDS - KEY Section -

• See page 23 for Circuit Boards Location.

1234 5

PANE L

BOARD

CN303

(SUFFIX-12)

R409

(SUFFIX-14)

(Page 29)

MAIN

C3

BOARD
CN605

C495

J492

PHONES

(SUFFIX-14)

(Page 29)

MAIN

C4

BOARD
CN605

C495

J492

PHONES

12, 13

(12, 13)

1-875-493-

1-875-493-

(14)

(Page 35) (Page 36)

PANE L

BOARD

A2

CN303

(SUFFIX-13)

(SUFFIX-12)

(SUFFIX-13)

(SUFFIX-14)

14

(Page 34)

A1

A

KEY CD BOARD

SW309

;

R410

SW308

DISC 3

B

(SUFFIX-12/-13)

C

JACK BOARD

D

J491

AUDIO IN

(SUFFIX-14)

E

JACK BOARD

F

G

J491

AUDIO IN

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

(SUFFIX-12/-13)

(Page 28)

MAIN

C1

BOARD

CN605

19

CN496

R491

R492

C491

(Page 28)

BOARD

CN605

19

R491

R492

C491

W491

C492

(CHASSIS)

JW491

(SUFFIX-12/-13)

MAIN

C2

JW491

C496

C496

• : Uses unleaded solder.

PANE L

BOARD

A3

CN303

(SUFFIX-14)

12

SW307

DISC 2

B1

PANE L

BOARD

CN306

(Page 34)

B2

PANE L

BOARD

CN306

(Page 35)

B3

PANE L

BOARD

CN306

(Page 36)

KEY POWER BOARD

3

(NC)

W401

1

REG BOARD

2

1

3

IC601

C698

JW614

W610

13

1-875-489-

MAIN

D1

BOARD

(Page 28)

EX-CHANGE

SW310

DISC SKIP/

R411

R408

STANDBY

12, 13, 14

(12, 13, 14)

D2

(Page 29)

SW301

BOARD

(SUFFIX-14)(SUFFIX-12/-13)

MAIN

R407

SW306

DISC 1

SW301,

SW306 - 310

1-875-491-

1-875-492-

12, 13, 14

(12, 13, 14)

12, 13, 14

(12, 13, 14)

6-15. SCHEMATIC DIAGRAM - KEY Section -

2

KEY CD BOARD

A

DISC SKIP/

EX-CHANGE

R411

R410

15k

6.8k

SW309SW310

SW308

DISC 3

R409

3.9k

B

KEY POWER BOARD

SW301

/

STANDBY

C

JACK BOARD

D

1

AUDIO-L

A-GND

AUDIO-R

C

MAIN

BOARD

(1/2)

CN605

(Page 30)

E

HP-GND

HP-L

HP-R

AMP-ON

SP-RELAY

9GND

TP491

TP492

TP493

TP494

TP495

TP496

TP497

TP498

R492

22k

REG BOARD

F

G

IC601

+9V REGULATOR

IC601

KIA7809API-U/PF

17.1 8.9

C698

0.1

IO

1

3

G

2

C496

1000p

W610

DISC 2

TP409

TP410

3P

4

W401

3P

SW306SW307

DISC 1

1

2

3

R407

2.2k

KEY-0

GND

KEY-SW-ON

C491

0.1

C492

0.1

TP415

TP416

BOARD

W491

D

MAIN

(1/2)

(CHASSIS)(SUFFIX-14)

KEY-1

GND12

(Page 37)

PAN EL
BOARD
CN306

B

(NC)

J491

AUDIO IN

J492

PHONES

PAN EL
BOARD
CN303

(Page 37)

R408

2.7k

R491

22k

C495

1000p

OUT

3

GND

2

IN

1

531

A

(Page 30)

HCD-EC68USB

3333

HCD-EC68USB

• Semiconductor
Location

Ref. No. Location

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

IC301 B-3
IC302 A-5

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

6-16. PRINTED WIRING BOARD - PANEL Board (Suffi x-12) -

123456

PANEL BOARD

LCD301

LIQDID CRYSTAL DISPLAY

A

B

Q305

JW313

E

JW395

R375

12

C347

JW328

C346

C304

R374

13

81

JW343

JW326

BE

Q304

R373

JW382

80

IC301

30

C348

C328

C306

R334

JW307

JR311

R372

R371

CN302

C330

R370

31

JR309

JW310

R369

C312

JW318

R383

JW331

R426

2

C341

51

50

R412

JW306

3 1

ROTARY
ENCODER

1

SW312

D303

R333

S301

VOLUME

C311

37

X302

JW347

FB301

C342

100

1

R326

JW320

R327

LED301

STANDBY

JW342

C355

C317

JW330

JW364

B

JW336

Q301

C354

BE

JW329

JW385

SW313

FUNCTION

JW325

JW332

R328

C

JW317

JW311

R414

R422

C314

R325

C315

SCR1

D

E

SW314

DSGX

F

JW393

R415

SW315

EQ

JW404

JW337

R416

C316

JW365

JW358

JW405

SW319

DISPLAY

JW403

R377

R376

R379

R378

JW397

JW398

JW361

JW392

JW352

JW344

R406

JW377

JW387

JW324

JW356

JR308

JW372

R413

R368

JW339

JW333

C344

C319

C320

TUNING +

.-

JW402

R366

JW362

R362

X301

JW357

SW305

B

Q306

R367

R363

R396

C321

JW353

JW303

JW383

JW315

JW340

R336

E

D302

JW401

JW394

C345

R365

R364

• See page 23 for Circuit Boards Location.

R381

1

R301

R319
R320
R321
R322

R324

JW380

JW374

JW378

R335

JW335

JW373

C310

C309

R350

R337

JR302

R318

JR304

R358

R359

Q313

JW354

R446

JW379

JW355

R323

JW316

C343

R347

JW308

R317
R316

SW303

Q316

R346

R302
R303

JW301

JW312

JW321

JW305

R338

R305

SW311

R339

E

R357

BE

R348

R312

JW389

Q309

B

Q312

JW367

R433
JW363

JW319

JW309

JW390

R342

B

Q310

JW346

R356

R354

R349

R304

E

R355

Y

R428

JW314

JR313

SW304

C303C305

R401

JW388

USB

R360

JR305

JW366

C338

JW360

R405

R384

C356

CN303

C340

JR310

JW375

R332

Q302

B

R361

12

R400

R391

JW338

R386

JW386

Q303

E

R331

E

C301

W301

Q318

JW351

24

15
CN307

(EXCEPT AEP)

JR301

JR303

R392

R389

JW348

R419

JR315

R387

JW370

B

C302

D301

R330

JW406

JW399

JW396

Q314

BE

R420

JW376

D304

R329

JW381

JW350

JW400

JW304

R353
JW368

R352

R447

R390

JR307

C332

Q317

BEBE

BE

R351

R437

B

R343

E

R402

R344

D305

JW384

JW322

R434R435

JW345

R340

R421

Q315

Q311

B

26

JW369

B

Q308

BE

E

• : Uses unleaded solder.

SW303 - 305,
SW311 - 319

IC302

1

32

C313

R380

R382

JW341

JW391

JW371

E

R385

11

2

CN304

27

Q307

B

R345

JW359

R306

R307

R310

SW318

USB SYNC
REC/REC 1

E

R417

CN306

JW349

R308

C308

JW302

JW323

JW334

SW316
ERASE

R341

ENTER

SW317

R311

R314

R313

R315

1-875-490-

112

R418

B1

KEY
POWER
BOARD

W401

(Page 33)

SW311

V

SW303

-TUNING

L1

MAIN

BOARD

CN607

(Page 28)

L4

MAIN

BOARD

CN607

(Page 29)

12

(12)

.-

(SUFFIX-12/-13)

(SUFFIX-14)

HCD-EC68USB

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

G

CD MECHANISM

DECK

(CHASSIS)

KEY CD
BOARD

(Page 33)

A1

T1

USB BOARD

CN902

(Page 26)

3434

HCD-EC68USB

6-17. PRINTED WIRING BOARD - PANEL Board (Suffi x-13) -

123456

PANEL BOARD

LCD301

LIQDID CRYSTAL DISPLAY

A

B

Q305

JW313

E

JW395

R375

12

C347

JW328

C346

C304

R374

13

81

JW343

JW326

BE

Q304

R373

JW382

80

IC301

30

C348

C328

C306

R334

JW307

JR311

R372

R371

CN302

C330

R370

31

JR309

JW310

R369

C312

JW318

R383

JW331

R426

2

1

C341

51

50

SW312

R412

JW306

D303

R333

3 1

ROTARY
ENCODER

VOLUME

C311

S301

37

X302

JW347

FB301

C342

100

1

R326

JW320

R327

LED301

STANDBY

JW342

C355

C317

JW330

JW364

B

JW336

Q301

C354

BE

JW329

JW385

SW313

FUNCTION

JW325

JW332

R328

C

JW317

JW311

R414

R422

C314

R325

SCR1

D

E

SW314

DSGX

F

JW393

R415

SW315

EQ

JW403

JW337

JW404

JW398

R416

C315

C316

JW365

JW358

JW405

SW319

DISPLAY

JW397

JW361

JW392

JW352

JW344

R406

JW377

JW387

JW324

JW372

R376

JW356

JR308

R413

R377

R368

JW339

JW333

C344

C319

C320

TUNING +

.-

R379

JW402

R366

JW362

R362

X301

JW357

SW305

B

Q306

R378

R367

R363

R396

C321

JW353

JW303

JW383

JW315

JW340

R336

E

D302

JW401

JW394

C345

R365

R364

• See page 23 for Circuit Boards Location.

R381

1

R301

R319
R320
R321
R322

R324

JW380

JW374

JW378

R335

JW335

JW373

C310

C309

R350

R337

JW354

JR302

R318

JR304

R358
R359

Q313

R446

JW355

R323

JW316

C343

JW379

R317

R316

SW303

R347

R346

R302
R303

JW301

JW308

JW321

JW305

JW389

R338

Q316

JW312

R305

SW311

R339

E

B

Q310

BE

R348

Q309

R357

R312

E

B

R433

JW363

JW319

JW309

JW390

R342

JW346

R356

R354

R349

Q312

JW367

D305

R355

Y

R428

JW314

JR313

SW304

C303C305

R401

JW388

R384

USB

R360

JR305

JW366

C338

JW360

R405

C356

CN303

C340

JR310

JW375

R332

Q302

B

R361

12

R400

R391

JW338

R386

JW370

JW386

Q303

E

R331

E

C301

W301

Q318

JW351

24

15

CN307

(EXCEPT AEP)

JR301

JR303

R392

R389

JW348

R420

R419

JR315

R387

D304

B

C302

D301

R330

JW406

JW400

JW399

JW396

Q314
BE

R352

JR307

JW376

R329

JW381

JW350

JW304

R353
JW368

R437

R447

R390

C332

Q317

BEBE

BE

R351

R304

B

R343

E

R402

JW384

JW322

R434R435

JW345

JW391

R340

R345

Q315

Q311

B

26

JW369

R344

R421

BE

E

• : Uses unleaded solder.

SW303 - 305,
SW311 - 319

IC302

1

32

C313

R380

CN306

JW359

R306

JW349

R307

R308

R310

CN304

SW318

USB SYNC
REC/REC 1

C308

E

B

E

JW302

JW323

JW334

SW316

ERASE

R417

R341

R311

R314

R313

R315

ENTER

SW317

R382

112

R418

1-875-490-

B2

KEY
POWER
BOARD

W401

(Page 33)

SW311

V

SW303

-TUNING

L2

MAIN

BOARD

CN607

(Page 28)

L5

MAIN

BOARD

CN607

(Page 29)

13

(13)

R385

JW341

11

2

27

JW371

Q307

B

Q308

.-

(SUFFIX-12/-13)

(SUFFIX-14)

• Semiconductor
Location

Ref. No. Location

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

IC301 B-3
IC302 A-5

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

G

HCD-EC68USB

CD MECHANISM

DECK

(CHASSIS)

KEY CD

BOARD

(Page 33)

A2

T2

USB BOARD

CN902

(Page 26)

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

3535

HCD-EC68USB

• Semiconductor
Location

Ref. No. Location

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

IC301 B-3
IC302 A-5

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

6-18. PRINTED WIRING BOARD - PANEL Board (Suffi x-14) -

123456

PANEL BOARD

LCD301

LIQDID CRYSTAL DISPLAY

A

B

Q305

JW313

E

JW395

R375

12

C347

JW328

C346

C304

R374

13

81

JW343

JW326

BE

Q304

R373

JW382

80

IC301

30

C348

C328

C306

R334

JW307

JR311

R372

R371

CN302

C330

R370

31

JR309

JW310

R369

C312

JW318

R383

JW331

R426

2

C341

51

50

R412

JW306

3 1

ROTARY
ENCODER

1

SW312

D303

R333

S301

VOLUME

C311

37

X302

JW347

FB301

C342

100

1

R326

JW320

R327

LED301

STANDBY

JW342

C355

C317

JW330

JW364

B

JW336

Q301

C354

BE

JW329

JW385

SW313

FUNCTION

JW325

JW332

R328

C

JW317

JW311

R414

R422

C314

R325

C315

SCR1

D

E

SW314

DSGX

F

JW393

R415

SW315

EQ

JW337

JW404

R416

C316

JW365

JW358

JW405

SW319

DISPLAY

JW403

JW398

JW397

JW361

JW392

JW352

JW344

R406

JW377

JW387

JW324

JW372

R413

R376

JW356

R377

R368

JW339

JW333

C344

C319

C320

TUNING +

.-

R379

JW402

R366

JW362

R362

X301

JW357

SW305

B

Q306

R378

R367

R363

R396

C321

JW353

JW303

JW383

JW315

JW340

R336

E

D302

JW401

JW394

C345

R365

R364

• See page 23 for Circuit Boards Location.

R381

1

R301

R319
R320
R321
R322

R324

JW380

JW374

JW378

R335

JW335

JW373

C310

C309

R350

R337

JR302

R318

JR304

R358

R359

Q313

JW354

R446

JW379

JW355

R323

JW316

C343

R347

JW308

R317
R316

SW303

Q316

R346

R302
R303

JW301

JW312

JW321

JW305

JW389
R338

R305

SW311

R339

E

B

Q310

R357

BE

R348

Q309

E

B

R433
JW363

R312

Q312

JW367

JW319

JW309

JW390

R342

D305

JW346

R355

R356

R354

R349

Y

R428

JW314

JR313

SW304

C303C305

R401

JW388

USB

R360

JR305

JW366

C338

JW360

R405

R384

CN303

C340

JR310

JW375

R332

Q302

B

R361

12

R400

R391

JW338

R386

JW386

Q303

E

R331

E

C301

W301

Q318

JW351

24

15
CN307

(EXCEPT AEP)

JR301

JR303

R392

R389

JW348

R419

JR315

R387

JW370

B

C302

D301

R330

JW406

JW400

JW399

JW396

Q314

BE

R420

JW376

D304

R329

JW350

R353
JW368

R352

R447

R390

JR307

C332

JW381

Q317

BEBE

JW304

BE

R351

R437

R304

B

E

R402

R343

JW384

JW322

R434R435

JW345

JW391

R340

R345

Q315

Q311

B

26

JW369

R344

R421

BE

E

• : Uses unleaded solder.

SW303 - 305,
SW311 - 319

IC302

1

32

C313

R380

R382

JW341

JW371

Q307

11

2

27

B

Q308

R385

R307

CN304

E

JW359

R306

R310

SW318

USB SYNC

REC/REC 1

B

E

R417

CN306

JW349

R308

C308

JW302

JW323

JW334

SW316

ERASE

R341

ENTER

SW317

R311

R314

R313

R315

1-875-490-

112

R418

B3

KEY
POWER
BOARD

W401

(Page 33)

SW311

V

SW303

-TUNING

L3

MAIN

BOARD

CN607

(Page 28)

L6

MAIN

BOARD

CN607

(Page 29)

14

(14)

.-

(SUFFIX-12/-13)

(SUFFIX-14)

HCD-EC68USB

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

G

CD MECHANISM

DECK

(CHASSIS)

KEY CD
BOARD

(Page 33)

A3

T3

USB BOARD

CN902

(Page 26)

3636

HCD-EC68USB

HCD-EC68USB

3737

(SUFFIX-12)
(SUFFIX-13)
(SUFFIX-14)

(SUFFIX-12)
(SUFFIX-13)
(SUFFIX-14)

B

A

L

(2/2)

CN607

BOARD

MAIN

BOARD

W401

KEY

POWER

CD

KEY

BOARD

31

32

T

CN902

BOARD

USB

1.3

3.1

1.3

3.1

3.3

2.9

3.3

1.5

3.3

3.3

0.9

3.3

3.3

0

3.3

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

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

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

R419

100kR420

R390

10k

R392

10k

R389

1k

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

27P

CN304

5P

CN307

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

(SUFFIX-12/-13)

(SUFFIX-12/-13)

FB301 0

(SUFFIX-14)

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

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

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

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

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

R437 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

I-P-MONI

O-DMP-RXD

O-SW-ON/I-TP-STATE

M2-

I-KEY2

I-KEY1

470pC347

C348 470p

REMOTE CONTROL

IC302

SW311

V

SW312SW313SW314SW315SW316

SW317

SW318

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

4

3

2

1

USB-SI

USB-DO

5

USB-SO

USB-DI

SEL1

I/O-BUS2

I/O-BUS1

I/O-BUS0

STANDBY

/

LED DRIVE

Q302-304

+4V REGULATOR

Q305,306

VOLTAGE DETECT

Q311-318

MOTOR DRIVE

∗R391
1k (AEP)
47k (E2)
100k (E51,MX,AR)

∗R419
27k (EXCEPT MX (SUFFIX-14))
33k (MX (SUFFIX-14))

(EXCEPT AEP)

(CHASSIS)

REGULATOR

Q307-310

CD

DECK

MECHANISM

RECEIVER

ROTARY ENCODER

VOLUME

TUNING +

SW305

USB

FUNCTION

SW304

SW303

- TUNING

ENTER

DSGXERASE EQ

USB SYNC REC/

REC 1

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

(Page 31)

6-19. SCHEMATIC DIAGRAM - PANEL Board -

• See page 40 for waveforms. • See page 40 for IC Block Diagrams. • See page 42 for IC Pin Function Description.

(Page 27)

(Page 33)

(Page 33)

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

Ver. 1.1

HCD-EC68USB

HCD-EC68USB

3838

C051

C052

D051

D052D055

1

8

13

S001

CN051

CN053

RY001

RY001

RY002

RY002

JW003

JW004

JW005

JW006

JW007

JW008

JW010

JW011

JW012

JW013

JW014

JW015

JW016

JW017

JW018

JW019

JW020

W001

PT BOARD

230-240V

220V 120V

–2

–1

∗

NOT REPLACEABLE:
BUILD IN TRANSFORMER

∗

5

5

PT001 (AEP)
PT002 (EXCEPT AEP)

SUB POWER TRANSFORMER

(E51, AR)

(E2, E51, AR)

(AEP)

(AEP)

(AEP)

(AR)

(MX)

(MX)

(EXCEPT AEP)

(EXCEPT AEP)

(EXCEPT AEP)

(E2, E51)

VOLTAGE SELECTOR

(AC IN)

PT003(EXCEPT AEP)

PT004(AEP)

MAIN POWER

TRANSFORMER

J2

MAIN

BOARD

CN604

J1

MAIN

BOARD

CN604

1-875-494-

12, 13, 14

(12, 13, 14)

B

C

D

E

F

1234 5

A

(CHASSIS)

(SUFFIX-14)

(SUFFIX-12/-13)

6-20. PRINTED WIRING BOARD - PT Board -

• : Uses unleaded solder.

• See page 23 for Circuit Boards Location.

(Page 28)

(Page 29)

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

Ver. 1.1

HCD-EC68USB

HCD-EC68USB

3939

6-21. SCHEMATIC DIAGRAM - PT Board -

(1/2)

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

JW006

JW004

JW005

JW003

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

VOLTA GE

SELECTOR

S001

120V

220V

230-240V

-1

-2

(AC IN)

SUB POWER TRANSFORMER

SUB POWER TRANSFORMER

MAIN POWER TRANSFORMER

MAIN POWER TRANSFORMER

(EXCEPT AEP)

(EXCEPT AEP)

(EXCEPT AEP)

(AEP)

(MX)

(MX)

(AR)

(AEP)

(AEP)

∗

∗

∗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

(E51, AR)

(E2,E51, AR)

(E2,E51)

(Page 30)

Ver. 1.1

HCD-EC68USB

HCD-EC68USB

4040

• IC Block Diagrams
– CD Board –

IC201 TK63115SCL-G@GT

IC401 BA5826SFP-E2

1

2

3

4

5

6

7

8

9

10

11

12
13

14

28

27

26

24

23

22

21

20

19

18

17

16

15

25

LEVEL
SHIFT

LEVEL
SHIFT

THERMAL
SHUT-DOWN
REGULATOR

BIAS TRAP

LEVEL
SHIFT

MUTE

LEVEL
SHIFT

D.BUFF

D.BUFF

D.BUFF

GND

IN4

IN4'

BIAS

VCC

VCC

IN3'

IN3

VO3(+)

VO3(–)

VO4(–)

VO4(+)

RESETt

OPIN

VO1(–)

REGB

VO1(+)

IN1

RESET

REGOUT

MUTE

GND

IN2'

IN2

VO2(+)

VO2(–)

GND

OPOUT

D.BUFF

D.BUFF

D.BUFF

D.BUFF

D.BUFF

REGULATOR

VCC

VCC

– USB Board –

IC303 TC74VHC157FT (EKJ)

IC915 R5523N001B-TR-F

• Waveforms
– CD Board –

– USB Board – – PANEL Board –

– MAIN Board –

– MAIN Board –

IC602 BD3499FV-E2

1A1

18 BCB1
17 BCA1
16 BCA2

20 SB2

19 OUT2

22 SB1
21 SR

24 VCC

23 OUT1

26

SDA

25

SCL

28 FIL
27 GND

15 BCB2

2A2
3B1

5C1
6C2

4

B2

11

VOL1

12

VOL2

13TC2
14TC1

7D1
8D2

9SEL2

10SEL1

INPUT

SELECTOR

TREBLE/

BASS

INVERTER

VOLUME

INPUT

GAIN

SURROUND

PC BUS

LOGIC

IC701 BD9701CP-V5

IC101 JB (RFi)



(CD play mode)

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

IC901 VE (X2)

RB

111 n s

1 V/DIV, 50 ns/DIV

IC801 RM (XIN)

XB

3.7 Vp-p

IC301 RG (X1A)

FB

IC301 PT (X1)

FT

30.5 μs

1 V/DIV, 10 μs/DIV

166 ns

1 V/DIV, 50 ns/DIV

3 Vp-p

3 Vp-p

SELECT

INPUT

OUTPUT

INPUT

OUTPUT

GND

111

S

2

1A

1A

3

1B

1B

4

1Y

1Y

5

2A

2A

6

2B

2B

7

2Y

2Y

8

16

VCC

15

STROBE

G

4A

14

4A

4B

4Y

3A

3B

3Y

INPUT

4B

13

11

12

4Y

OUTPUT

3A

11

INPUT

3B

10

3Y

OUTPUT

9

1EN

GATE

CONTROL

CURRENT

LIMIT

5OUT

4IN

1

VIN

2

GND

3NC4

VCONT

THERMAL &

OVER CURRENT

PROTECTION

VOLTAGE

REFERENCE

ON/OFF

CONTROL

VCC

UVLO

THERMAL

SHUTDOWN

REGULATOR

VOLTAGE

REFERENCE

FLAG

DELAY

STANDBY

2

3

4

5

INV

OUT

GND

STBY

1 Vp-p

13.3 μs

2GND

500 mV/DIV, 5 μs/DIV

3FLG

–
+

VOUT

5

1

IC801 LV23003VA

HCD-EC68P/EC78P

AM RF-IN

REG

FM-MIX

GND1

AM-MIX

VCC1

AMIF-IN

FMIF-IN

P-DET

P-COMP

FM-DET

L-OUT

R-OUT

VSS

MIX

AM

RF

FM

AM

MIX

AGC

AM

DET

FM

DET

FM

S-METER

PIROT

DET

FF

FF

PHASE

COMPARATOR

MUTE

1

2

3

4

5

6

7

8

9

10
11

12
13

14

IF

BUFFER

AM

IF

FM

IF

DECODER

FM
RF

FM

OSC

OSC

BUFFER

SD

ST

TRIG

STSW

FF

VCO

AM

OSC

LOW-PASS

FILTER

36

35

34

33

32

31
30
29
28
27
26
25

24

23

22

FM RF-IN

GND2

FMRF-OUT

VCC2

FM-OSC

AM-OSC
BO2
BO1
LP-OUT
LP-IN
PD
AGC

AMDET-OUT

FMDET-OUT

MPX-IN

UNIVERSAL

COUNTER

DATA SHIFT

15

CE

16

DI

17

CL

18

DO

CCB

I/F

REGISTER

LATCH

PROGRAMMABLE

DIVIDER

SWALLOW
COUNTER

UNLOCK

DETECTOR

POWER ON

RESET

REFERENCE

DIVIDER

PHASE

DETECTOR

CHARGE

PUMP

21

VDD

20

XOUT

19

XIN

41

HCD-EC68P/EC78P

• IC Pin Function Description
CD BOARD IC101 TC94A70FG-008 (S, D) (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 VSS1 - 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 Analog audio (R-ch) signal output terminal

28 DVDD3 - Power supply terminal (+3.3 V)

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

30 LO O Analog audio (L-ch) signal output terminal

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 or USB controller

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

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

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

43 XCCE I Chip enable signal input from the system controller or USB controller

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

45 IRQ I Interrupt request signal input terminal

46 AoUT3 (PO4) O Not used

47 AoUT2 (PO5) O Audio data output to the USB controller

48 PIO0 O Request signal output to the system controller or USB controller

49 PIO1 O Request signal output to the USB controller

50 PIO2 O Not used

51 PIO3 I Gate signal input from the USB controller

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

42

HCD-EC68P/EC78P

Pin No. Pin Name I/O Description

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

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 to the USB controller

64 LRCK (PO9) O L/R sampling clock signal output terminal

65 AIN (PI4) I Digital audio data input from USB controller

66 BCKi (PI5) I Bit clock signal input from the USB controller

67 LRCKi (PI6) I L/R sampling clock signal input from the USB controller

68 VDD1 - Power supply terminal (+1.5 V)

69 VSS1 - 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

43

HCD-EC68P/EC78P

USB BOARD IC901 TMP92CD28AFG-6UJ5 (USB CONTROLLER)

Pin No. Pin Name I/O Description

1 USB-RST I Reset signal input from the system controller "L": reset

2 I-USB-DI I Ready to send signal input from the system controller

3, 4 INT1, INT2 O Not used

5 INT3 I Function selection signal input terminal Fixed at "L" in this set

6 DVCC3B - Power supply terminal (+3.1 V)

7 to 9 XT1, XT2, PWE - Not used

10 DVSS1B - Ground terminal

11 DVCC1B - Power supply terminal Not used

12 RVOUT1 O Reference voltage (+3.1 V) output terminal Not used

13, 14 RVIN I Reference voltage (+3.1 V) input terminal

15 RVOUT2 O Reference voltage (+3.1 V) output terminal Not used

16 DVCC1A - Power supply terminal Not used

17 DVSS1A - Ground terminal

18 to 25 D0 to D7 I/O Two-way data bus with the S-RAM

26 DVSS - Ground terminal

27 DVCC - Power supply terminal (+3.1 V)

28 to 35 D8 to D15 I/O Two-way data bus with the S-RAM

36 A0 O Address signal output terminal Not used

37 to 43 A1 to A7 O Address signal output to the S-RAM

44 DVSS - Ground terminal

45 DVCC3A - Power supply terminal (+3.1 V)

46 to 54 A8 to A16 O Address signal output to the S-RAM

55 to 58 BUS0-U to BUS3-U O Serial data output to the CD-MP3 processor

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

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

61 A23 O Not used

62 DVSS - Ground terminal

63 DVCC3A - Power supply terminal (+3.1 V)

64 RD O Output enable signal output to the S-RAM

65 SRWR O Write enable signal output to the S-RAM

66 SRLLB O Lower-byte control signal output to the S-RAM

67 SRLUB O Upper-byte control signal output to the S-RAM

68 TA0IN O Not used

69 BOOT I Boot mode selection signal input terminal "L": boot mode

70 SRAM-CS O Chip select signal output to the S-RAM

71 LRCK O L/R sampling clock signal output to the CD-MP3 processor

72 AM1 I Function mode selection signal input terminal Fixed at "H" in this set

73 X2 O System clock output terminal (9 MHz)

74 DVSS - Ground terminal

75 X1 I System clock input terminal (9 MHz)

76 DVCC3A - Power supply terminal (+3.1 V)

77 USBOC I Over current detection signal input terminal

78 USBPON O USB VBUS power on/off control signal output terminal "H": power on

79 D+ I/O Two-way data (positive) bus with the USB connector

80 D- I/O Two-way data (negative) bus with the USB connector

81 AM0 I Function mode selection signal input terminal Fixed at "H" in this set

82 X1USB O Not used

83 DVSS - Ground terminal

84 O-USB-DO O Clear to send signal output to the system controller

85 DATA I Audio data input from the CD-MP3 processor

86 CLK I Audio data transfer clock signal input from CD-MP3 processor

87 O-USB-SO O Serial data output to the system controller

88 I-USB-SI I Serial data input from the system controller

89 SPCLK - Not used

90 SO0 - Not used

91 SI0 - Not used

92 BCK O Bit clock signal output to the CD-MP3 processor

93 A-IN O Audio data output to the CD-MP3 processor

94 GATE O Gate signal output to the CD-MP3 processor

44

Pin No. Pin Name I/O Description

95 DVCC3A - Power supply terminal (+3.1 V)

96 REQ-U I Request signal input from the CD-MP3 processor

97 ST-REQ I Request signal input from the CD-MP3 processor

98, 99 PG1, PG0 I Function selection signal input terminal Fixed at "L" in this set

100 DVSS - Ground terminal

HCD-EC68P/EC78P

45

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

22 I-3CD-STOCK I Disc stocking detection switch input from the CD mechanism deck

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 USB controller

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 Clear to send signal input from the USB controller

O Serial data output to the USB controller

O Ready to send signal output to the USB controller

I Data selection signal output terminal

O Reset signal output to USB controller

I CD table open/close detection signal input terminal

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"

46

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

HCD-EC68P/EC78P

47

HCD-EC68USB

Ver. 1.1

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

AR : Argentina model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model

Parts of Color Cabinet’s Color

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

3

5

6

6

#1

2

#5

6

#1

#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)
2 3-363-099-32 SCREW (CASE 3 TP2)
3 2-890-831-11 PANEL (L), SIDE
4 2-890-830-11 PANEL (R), SIDE
5 2-890-829-11 PANEL (TOP)

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

48

7-2. FRONT PANEL SECTION

HCD-EC68USB

Ver. 1.1

55

52

53

not supplied

54

not supplied

not supplied
(KEY POWER board)

not
supplied

56

64

not supplied
(HOLD board)

62

57

59

58

56

(SUFFIX-12/-13)

63

56

not supplied
(USB board)

56

56

65

not supplied
(KEY CD board)

not supplied
(JACK HOLD board)

56

not supplied
(JACK board)

not
supplied

56

60

not supplied

51

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)
53 3-276-201-01 PLATE, ORNAMENTAL
54 3-276-198-51 WINDOW
55 A-1418-859-A PANEL ASSY, FRONT (AEP)

55 A-1525-905-A PANEL ASSY, FRONT (E2, E51, MX, AR)
56 3-087-053-01 +BVTP2.6 (3CR)
57 1-832-906-21 CABLE, FLEXIBLE FLAT (27 CORE)
58 3-297-298-01 SHEET (RM)
59 A-1379-734-A PANEL BOARD, COMPLETE (AEP)

59 A-1518-860-A PANEL BOARD, COMPLETE (E2)

61

56

not supplied

not supplied

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

59 A-1518-867-A PANEL BOARD, COMPLETE (E51, AR)
59 A-1555-189-A PANEL BOARD, COMPLETE (MX)
60 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE)
61 4-225-252-01 CUSHION (FOOT)

62 1-832-678-21 CABLE, FLEXIBLE FLAT (7 CORE)

62 1-832-680-21 CABLE, FLEXIBLE FLAT (7 CORE)

63 1-835-333-21 CABLE, FLEXIBLE FLAT (21 CORE)
64 1-457-413-11 CORE, FERRITE (for SUFFIX-12/-13)
65 1-832-664-21 CABLE, FLEXIBLE FLAT (5 CORE)

(USB CONN board)

(for SUFFIX-14)

(for SUFFIX-12/-13)

49

HCD-EC68USB

Ver. 1.1

7-3. CHASSIS SECTION

main section

#1

not supplied

not supplied
(AC HOLD board)

not supplied

#1

#1

109

M601

104

105

105

not supplied

105

105

106

#1

#1

CD mechanism section

#1

#1

not supplied

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

101 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE)
102 4-225-252-01 CUSHION (FOOT)
104 3-701-748-00 CLAMP
105 3-254-143-11 SCREW (B3), (+) BV TAPPING

0 106 1-829-387-11 CORD, POWER (AR)

0 106 1-834-966-21 CORD, POWER (AEP, E2, E51)

#1

102

not
supplied

101

0 106 1-834-978-11 CORD, POWER (MX)
107 1-835-332-21 CABLE, FLEXIBLE FLAT (27 CORE)
109 1-500-868-11 CORE, FERRITE
0 M601 1-787-400-11 D.C. FAN

#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3

107

50

7-4. MAIN SECTION

HCD-EC68USB

Ver. 1.1

not supplied

not supplied

#4

not supplied
(HOLD board)

151

#1

#1

not supplied
(HOLD (PT) board)

#1

152

not supplied
(REG board)

not supplied

154

#1

#1

not supplied

#1

not supplied
(LOW AMP board)

#3

#1

PT003: E2, E51, MX, AR/
PT004: AEP

not supplied
(PT board)

#1

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

151 A-1379-732-A MAIN BOARD, COMPLETE (AEP)
151 A-1518-858-A MAIN BOARD, COMPLETE (E2, E51, MX, AR)
152 1-831-744-21 CABLE, FLEXIBLE FLAT (5 CORE)
154 3-905-609-31 SCREW (TRANSISTOR)

0 PT003 1-445-338-11 TRANSFORMER, POWER (MX)

0 PT003 1-445-346-11 TRANSFORMER, POWER (E2, E51, AR)
0 PT004 1-445-340-11 TRANSFORMER, POWER (AEP)

#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

51

HCD-EC68USB

7-5. 3 CD MECHANISM SECTION (CDM88A-K6BD91UR-WOD)

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-1236-250-A CD BOARD, COMPLETE
S201 1-771-853-11 SWITCH, DETECTION (LIMIT)

52

SECTION 8

ELECTRICAL PARTS LIST

HCD-EC68USB

Ver. 1.1

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.

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

A-1236-250-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

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
C148 1-162-923-11 CERAMIC CHIP 47PF 5% 50V
C149 1-162-919-11 CERAMIC CHIP 22PF 5% 50V

• CAPACITORS
uF: μF

• COILS
uH: μH

• 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. .

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

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 >

CN202 1-784-835-51 CONNECTOR, FFC (LIF (NON-ZIF)) 27P
CN301 1-770-425-51 CONNECTOR, FFC/FPC 16P

< IC >

IC101 6-710-827-01 IC TC94A70FG-008 (S, D)
IC201 6-710-808-01 IC TK63115SCL-G@GT
IC401 6-710-637-01 IC BA5826SFP-E2

< TRANSISTOR >

Q301 6-551-120-01 TRANSISTOR

< RESISTOR/FERRITE BEAD >

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 1-500-445-21 FERRITE, EMI (SMD) (2012)
R109 1-216-809-11 METAL CHIP 100 5% 1/10W
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

R114 1-216-833-11 METAL CHIP 10K 5% 1/10W
R118 1-216-845-11 METAL CHIP 100K 5% 1/10W

• Abbreviation
AR : Argentina model
E2 : 120V AC area in E model
E51 : Chilean and Peruvian models
MX : Mexican model

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.

2SA2119K

53

HCD-EC68USB

CD JACK LOW AMPKEY POWERKEY CD

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

R119 1-216-864-11 SHORT CHIP 0
R121 1-216-809-11 METAL CHIP 100 5% 1/10W
R128 1-216-853-11 METAL CHIP 470K 5% 1/10W

JACK BOARD

***********

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
R213 1-216-809-11 METAL CHIP 100 5% 1/10W

< CAPACITOR >

C491 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C492 1-164-156-11 CERAMIC CHIP 0.1uF 25V

(SUFFIX-14)
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

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

KEY CD BOARD

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

< RESISTOR >

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

< SWITCH >

SW306 1-771-410-21 SWITCH, TACTILE (DISC 1)
SW307 1-771-410-21 SWITCH, TACTILE (DISC 2)
SW308 1-771-410-21 SWITCH, TACTILE (DISC 3)
SW309 1-771-410-21 SWITCH, TACTILE (Z)
SW310 1-771-410-21 SWITCH, TACTILE (DISC SKIP/EX-CHANGE)

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

KEY POWER BOARD

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

R214 1-216-809-11 METAL CHIP 100 5% 1/10W
R216 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
R224 1-216-809-11 METAL CHIP 100 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
R415 1-216-841-11 METAL CHIP 47K 5% 1/10W

< VIBRATOR >

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

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

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

< 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

BOARDS” (page 4) of the servicing notes for suffi x-14.

54

HCD-EC68USB

MAINLOW AMP

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

C116 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V
C119 1-126-968-11 ELECT 100uF 20% 50V
C120 1-126-968-11 ELECT 100uF 20% 50V
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

< CONNECTOR >

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

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

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

A-1379-732-A MAIN BOARD, COMPLETE (AEP)
A-1518-858-A MAIN BOARD, COMPLETE (EXCEPT AEP)

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

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

< DIODE >

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 (EXCEPT AEP)
IC101 6-705-621-01 IC STK433-070 (AEP)

< JUMPER RESISTOR >

JR132 1-216-864-11 SHOR

< 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 1-216-826-11 METAL CHIP 2.7K 5% 1/10W

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

R104 1-216-826-11 METAL CHIP 2.7K 5% 1/10W

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

R105 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R106 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
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

R132 1-216-822-11 METAL CHIP 1.2K 5% 1/10W
R133 1-216-837-11 METAL CHIP 22K 5% 1/10W

T CHIP 0

(AEP)

(EXCEPT AEP)

(AEP)

(EXCEPT AEP)

< CAPACITOR >

C601 1-126-947-11 ELECT 47uF 20% 35V
C602 1-104-662-91 ELECT 22uF 20% 25V
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

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 1-128-550-11 ELECT 2200uF 20% 50V
C623 1-137-749-11 MYLAR 0.1uF 100V
C626 1-128-550-11 ELECT 2200uF 20% 50V
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
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

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

5555

HCD-EC68USB

MAIN

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

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

(for SUFFIX-12/-13)

(for SUFFIX-12/-13)

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

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

(for SUFFIX-12/-13)
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

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

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

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
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
C761 1-126-935-11 ELECT 470uF 20% 16V
C788 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C789 1-164-245-11 CERAMIC CHIP 0.015uF 10% 25V
C790 1-162-968-11 CERAMIC CHIP 0.0047uF 10% 50V

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

< CONNECTOR >

CN601 1-819-131-11 PIN, CONNECTOR 3P
CN603 1-784-766-11 CONNECTOR, FFC 5P
CN604 1-819-136-11 PIN, CONNECTOR 8P
CN605 1-784-770-11 CONNECTOR, FFC 9P
CN607 1-784-788-11 CONNECTOR, FFC 27P

CN608 1-779-289-11 CONNECTOR, FFC (LIF (NON-ZIF)) 21P
CN633 1-819-133-11 PIN, CONNECTOR
* CN801 1-506-680-11 PLUG, CONNECTOR (2.5mm) 3P

(ANTENNA FM/AM)

< DIODE >

D601 6-500-335-01 DIODE MC2838-T112-1
D602 6-500-335-01 DIODE MC2838-T112-1
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 (AEP)

D612 8-719-046-07 DIODE 2A02M (AEP)
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

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-14.

56

HCD-EC68USB

MAIN

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

D620 8-719-063-79 DIODE 1N4002B
D621 6-501-722-01 DIODE MAZ8043GMLS0
D622 6-501-752-01 DIODE MAZ8082GMLS0
D628 6-501-817-01 DIODE MA2J1110GLS0

D629 8-719-063-79 DIODE 1N4002B (EXCEPT AEP)
D630 8-719-063-79 DIODE 1N4002B (EXCEPT AEP)
D631 6-501-817-01 DIODE MA2J1110GLS0
D701 8-719-079-47 DIODE RK36LF-A4
D704 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

< TRANSISTOR >

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

< GROUND TERMINAL >

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

< FILTER >

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

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

< 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 1-216-806-11 METAL CHIP 56 5% 1/10W
R609 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R610 1-216-829-11 METAL CHIP 4.7K 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

(EXCEPT AEP)

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

(AEP)
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

(EXCEPT AEP)

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

(AEP)
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

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 >

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 1-457-162-22 COIL, AIR-CORE
L804 1-457-163-22 COIL, AIR-CORE
L805 1-457-161-11 COIL, AM ANTENNA

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
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
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

5757

HCD-EC68USB

MAIN

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

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
R661 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
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
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
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

(for SUFFIX-12/-13)
R731 1-216-809-11 METAL CHIP 100 5% 1/10W
R732 1-216-809-11 METAL CHIP 100 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

R754 1-216-830-11 METAL CHIP 5.6K 5% 1/10W
R760 1-216-864-11 SHORT CHIP 0

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
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

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
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

< RELAY >

RY602 1-755-307-21 RELAY

< TRANSFORMER >

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

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

58

T801 1-433-741-11 TRANSFORMER, IF

BOARDS” (page 4) of the servicing notes for suffi x-14.

HCD-EC68USB

Ver. 1.1

PANELMAIN

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

< TERMINAL >

TB602 1-536-708-81 TERMINAL BOARD, PUSH (4P)

(SPEAKER IMPEDANCE USE 6Ω)

< VIBRATOR >

X801 1-813-917-11 VIBRATOR, CRYSTAL (75MHz)

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

A-1379-734-A PANEL BOARD, COMPLETE (AEP)
A-1518-860-A PANEL BOARD, COMPLETE (E2)
A-1518-867-A PANEL BOARD, COMPLETE (E51, AR)
A-1555-189-A PANEL BOARD, COMPLETE (MX)

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

< DIODE >

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

< FERRITE BEAD/JUMPER RESISTOR >

FB301 1-216-864-11 SHORT CHIP 0 (for SUFFIX-14)
FB301 1-500-329-21 INDUCTOR, FERRITE BEAD (for SUFFIX-12/-13)

< IC >

2-649-178-01 PLATE, LIGHT GUIDE
2-649-179-01 SHEET (LCD)
2-665-175-01 SHEET (REFLECTOR)

< CAPACITOR >

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
C309 1-126-965-91 ELECT 22uF 20% 50V
C310 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C311 1-164-156-11 CERAMIC CHIP 0.1uF 25V

C312 1-164-156-11 CERAMIC CHIP 0.1uF 25V
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

IC301 A-1551-184-A IC MB90F831PF-G-SPE1 (for SERVICE)
IC302 6-711-556-01

< JUMPER RESISTOR >

JR301 1-216-864-11 SHOR
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 (for SUFFIX-12/-13)
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

< 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

IC NJL24H400B-SA

T CHIP 0

C342 1-162-964-11 CERAMIC CHIP 0.001uF 10% 50V
C343 1-126-965-91 ELECT 22uF 20% 50V
C344 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C345 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V
C346 1-165-176-11 CERAMIC CHIP 0.047uF 10% 16V

C347 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C348 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
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

(for SUFFIX-12/-13)

< CONNECTOR >

CN302 1-784-735-11 CONNECTOR, FFC 13P
CN303 1-815-550-11 PIN, CONNECTOR (PWB) 2P
CN304 1-784-749-11 CONNECTOR, FFC 27P
CN306 1-815-443-11 PIN, CONNECTOR (PWB) 2P
CN307 1-779-273-11 CONNECTOR, FFC (LIF (NON-ZIF)) 5P

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-14.

Q306 8-729-038-28 TRANSISTOR RT1N441C-TP-1
Q307 6-551-696-01 TRANSISTOR ISA1235AC1TP-1EF
Q308 8-729-038-28 TRANSISTOR RT1N441C-TP-1
Q309 8-729-040-76 TRANSISTOR KTA1273-Y-AT
Q310 8-729-120-28 TRANSISTOR 2SC1623-L5L6

Q311 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF
Q312 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF
Q313 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF
Q314 8-729-024-43 TRANSISTOR 2SA1365-T112-1EF
Q315 8-729-047-62 TRANSISTOR 2SC3440-T12-1F

Q316 8-729-047-62 TRANSISTOR 2SC3440-T12-1F
Q317 8-729-047-62 TRANSISTOR 2SC3440-T12-1F
Q318 8-729-047-62 TRANSISTOR 2SC3440-T12-1F

< RESISTOR >

R301 1-216-809-11 METAL CHIP 100 5% 1/10W
R302 1-216-809-11 METAL CHIP 100 5% 1/10W

5959

HCD-EC68USB

Ver. 1.1

PANEL

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

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

R364 1-216-837-11 METAL CHIP 22K 5% 1/10W
R365 1-216-837-11 METAL CHIP 22K 5% 1/10W
R366 1-216-833-11 METAL CHIP 10K 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
R310 1-216-809-11 METAL CHIP 100 5% 1/10W
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
R339 1-216-789-11 METAL CHIP 2.2 5% 1/10W
R340 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R341 1-216-839-11 METAL CHIP 33K 5% 1/10W

R342 1-216-849-11 METAL CHIP 220K 5% 1/10W
R343 1-216-853-11 METAL CHIP 470K 5% 1/10W
R344 1-216-826-11 METAL CHIP 2.7K 5% 1/10W
R345 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R346 1-216-841-11 METAL CHIP 47K 5% 1/10W

R347 1-216-817-11 METAL CHIP 470 5% 1/10W
R348 1-216-841-11 METAL CHIP 47K 5% 1/10W
R349 1-216-817-11 METAL CHIP 470 5% 1/10W
R350 1-216-841-11 METAL CHIP 47K 5% 1/10W
R351 1-216-817-11 METAL CHIP 470 5% 1/10W

R352 1-216-841-11 METAL CHIP 47K 5% 1/10W
R353 1-216-817-11 METAL CHIP 470 5% 1/10W
R354 1-216-841-11 METAL CHIP 47K 5% 1/10W
R355 1-216-821-11 METAL CHIP 1K 5% 1/10W
R356 1-216-821-11 METAL CHIP 1K 5% 1/10W

R357 1-216-841-11 METAL CHIP 47K 5% 1/10W
R358 1-216-841-11 METAL CHIP 47K 5% 1/10W
R359 1-216-821-11 METAL CHIP 1K 5% 1/10W
R360 1-216-821-11 METAL CHIP 1K 5% 1/10W
R361 1-216-841-11 METAL CHIP 47K 5% 1/10W

R362 1-216-837-11 METAL CHIP 22K 5% 1/10W
R363 1-216-837-11 METAL CHIP 22K 5% 1/10W

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

R367 1-216-837-11 METAL CHIP 22K 5% 1/10W
R368 1-216-833-11 METAL CHIP 10K 5% 1/10W
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

R372 1-216-821-11 METAL CHIP 1K 5% 1/10W
R373 1-216-864-11 SHORT CHIP 0
R374 1-216-821-11 METAL CHIP 1K 5% 1/10W
R375 1-216-864-11 SHORT CHIP 0
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
R386 1-216-821-11 METAL CHIP 1K 5% 1/10W

R387 1-216-821-11 METAL CHIP 1K 5% 1/10W
R389 1-216-834-11 METAL CHIP 12K 5% 1/10W
R390 1-216-833-11 METAL CHIP 10K 5% 1/10W
R391 1-216-821-11 METAL CHIP 1K 5% 1/10W

(AEP)

R391 1-216-841-11 METAL CHIP 47K 5% 1/10W

(E2)

R391 1-216-845-11 METAL CHIP 100K 5% 1/10W

(E51, MX, AR)

R392 1-216-833-11 METAL CHIP 10K 5% 1/10W

(EXCEPT AEP)
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
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

(EXCEPT MX (for SUFFIX-14))

R419 1-216-839-11 METAL CHIP 33K 5% 1/10W

(MX (for SUFFIX-14))

R420 1-216-845-11 METAL CHIP 100K 5% 1/10W
R421 1-216-833-11 METAL CHIP 10K 5% 1/10W
R422 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R426 1-216-845-11 METAL CHIP 100K 5% 1/10W
R428 1-216-841-11 METAL CHIP 47K 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
R437 1-216-817-11 METAL CHIP 470 5% 1/10W
R446 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

BOARDS” (page 4) of the servicing notes for suffi x-14.

60

HCD-EC68USB

Ver. 1.1

USBPANEL PT REG

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

R447 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

< IC >

< 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 (USB)
SW305 1-771-410-21 SWITCH, TACTILE (TUNING + M L)
SW311 1-771-410-21 SWITCH, TACTILE (u)
SW312 1-771-410-21 SWITCH, TACTILE (x)

SW313 1-771-410-21 SWITCH, TACTILE (FUNCTION)
SW314 1-771-410-21 SWITCH, TACTILE (DSGX)
SW315 1-771-410-21 SWITCH, TACTILE (EQ)
SW316 1-771-410-21 SWITCH, TACTILE (ERASE)
SW317 1-771-410-21 SWITCH, TACTILE (ENTER)

SW318 1-771-410-21 SWITCH, TACTILE (USB SYNC REC/REC 1)
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

< CONNECTOR >

CN051 1-819-972-11 HOLDER, CABLE 8P
0 CN053 1-793-660-11 PIN, CONNECTOR (PC BOARD) 3P

< DIODE >

IC601 6-713-032-01 IC KIA7809API-U/PF

< CABLE HOLDER >

W610 1-824-027-21 HOLDER, CABLE 3P

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

**********

< CAPACITOR >

C361 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C362 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C363 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C901 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C902 1-124-779-00 ELECT CHIP 10uF 20% 16V

C903 1-124-779-00 ELECT CHIP 10uF 20% 16V
C904 1-124-779-00 ELECT CHIP 10uF 20% 16V
C905 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C906 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C907 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C908 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C909 1-162-919-11 CERAMIC CHIP 22PF 5% 50V
C910 1-162-919-11 CERAMIC CHIP 22PF 5% 50V
C912 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 50V
C913 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C914 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C915 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C916 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C918 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C920 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V

C921 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C922 1-107-826-11 CERAMIC CHIP 0.1uF 10% 16V
C923 1-100-756-91 CERAMIC CHIP 0.047uF 50V
C936 1-162-927-11 CERAMIC CHIP 100PF 5% 50V
C937 1-162-927-11 CERAMIC CHIP 100PF 5% 50V

USB BOARD

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 1-443-912-11 TRANSFORMER, POWER (AEP)
0 PT002 1-445-105-11 TRANSFORMER, POWER (EXCEPT AEP)

< RELAY >

0 RY001 1-755-334-11 RELAY, AC POWER (AEP)
0 RY002 1-755-496-11 RELAY (EXCEPT AEP)

< SWITCH >

0 S001 1-786-408-11 SELECTOR, VOLTAGE (SWS-2301)

(VOLTAGE SELECTOR) (E2, E51)

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

REG BOARD

**********

< CAPACITOR >

C698 1-100-566-91 CERAMIC CHIP 0.1uF 10% 25V

< CONNECTOR >

CN901 1-770-469-21 PIN, CONNECTOR (PC BOARD) 2P
CN902 1-784-365-51 CONNECTOR, FFC/FPC 5P
CN903 1-784-366-51 CONNECTOR, FFC/FPC 7P
CN906 1-784-384-51 CONNECTOR, FFC/FPC 27P
CN907 1-778-692-51 CONNECTOR, FFC/FPC 21P

< DIODE >

D903 6-501-730-01 DIODE MAZ8051GMLS0
D904 6-501-730-01 DIODE MAZ8051GMLS0

< IC >

IC301 8-759-523-03 IC TC74HC4066AFT (EL)
IC302 8-759-523-03 IC
IC303 6-707-870-01 IC TC74VHC157FT (EKJ)
IC901 6-807-884-01 IC TMP92CD28AFG-6UJ5
IC915 6-710-887-01 IC R5523N001B-TR-F

IC921 6-704-832-01 IC IS61LV6416-10TLT

< TRANSISTOR >

Q301 8-729-620-07 TRANSISTOR

TC74HC4066AFT (EL)

2SC3052EF-T1-LEF

6161

HCD-EC68USB

USB

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

< RESISTOR >

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
R312 1-216-845-11 METAL CHIP 100K 5% 1/10W
R361 1-216-833-11 METAL CHIP 10K 5% 1/10W
R362 1-216-833-11 METAL CHIP 10K 5% 1/10W

R901 1-216-833-11 METAL CHIP 10K 5% 1/10W
R902 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R903 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R904 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R905 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R906 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R907 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R913 1-216-845-11 METAL CHIP 100K 5% 1/10W
R915 1-216-833-11 METAL CHIP 10K 5% 1/10W
R916 1-216-864-11 SHORT CHIP 0

USB CONN

R971 1-216-809-11 METAL CHIP 100 5% 1/10W

R972 1-216-809-11 METAL CHIP 100 5% 1/10W
R973 1-216-809-11 METAL CHIP 100 5% 1/10W
R974 1-216-809-11 METAL CHIP 100 5% 1/10W
R975 1-216-809-11 METAL CHIP 100 5% 1/10W
R976 1-216-809-11 METAL CHIP 100 5% 1/10W

R977 1-216-809-11 METAL CHIP 100 5% 1/10W
R978 1-216-809-11 METAL CHIP 100 5% 1/10W
R979 1-216-809-11 METAL CHIP 100 5% 1/10W
R981 1-216-809-11 METAL CHIP 100 5% 1/10W
R982 1-216-809-11 METAL CHIP 100 5% 1/10W

R983 1-216-809-11 METAL CHIP 100 5% 1/10W
R984 1-216-809-11 METAL CHIP 100 5% 1/10W
R985 1-216-809-11 METAL CHIP 100 5% 1/10W
R986 1-216-809-11 METAL CHIP 100 5% 1/10W
R988 1-216-833-11 METAL CHIP 10K 5% 1/10W

R989 1-216-295-91 SHORT CHIP 0
R990 1-216-295-91 SHORT CHIP 0
R991 1-216-833-11 METAL CHIP 10K 5% 1/10W

< VIBRATOR >

R917 1-216-864-11 SHORT CHIP 0
R919 1-216-809-11 METAL CHIP 100 5% 1/10W
R920 1-216-833-11 METAL CHIP 10K 5% 1/10W
R921 1-216-845-11 METAL CHIP 100K 5% 1/10W
R922 1-216-845-11 METAL CHIP 100K 5% 1/10W

R923 1-216-802-11 METAL CHIP 27 5% 1/10W
R924 1-216-802-11 METAL CHIP 27 5% 1/10W
R925 1-216-835-11 METAL CHIP 15K 5% 1/10W
R926 1-216-835-11 METAL CHIP 15K 5% 1/10W
R928 1-216-864-11 SHORT CHIP 0

R932 1-216-809-11 METAL CHIP 100 5% 1/10W
R933 1-216-864-11 SHORT CHIP 0
R934 1-216-833-11 METAL CHIP 10K 5% 1/10W
R937 1-216-809-11 METAL CHIP 100 5% 1/10W
R938 1-216-809-11 METAL CHIP 100 5% 1/10W

R941 1-216-845-11 METAL CHIP 100K 5% 1/10W
R942 1-216-845-11 METAL CHIP 100K 5% 1/10W
R943 1-216-845-11 METAL CHIP 100K 5% 1/10W
R944 1-216-845-11 METAL CHIP 100K 5% 1/10W
R945 1-216-829-11 METAL CHIP 4.7K 5% 1/10W

R947 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R950 1-216-829-11 METAL CHIP 4.7K 5% 1/10W
R951 1-216-805-11 METAL CHIP 47 5% 1/10W
R952 1-216-805-11 METAL CHIP 47 5% 1/10W
R953 1-216-805-11 METAL CHIP 47 5% 1/10W

R954 1-216-805-11 METAL CHIP 47 5% 1/10W
R955 1-216-805-11 METAL CHIP 47 5% 1/10W
R956 1-216-805-11 METAL CHIP 47 5% 1/10W
R957 1-216-805-11 METAL CHIP 47 5% 1/10W
R958 1-216-805-11 METAL CHIP 47 5% 1/10W

X901 1-813-931-21 VIBRATOR, CRYSTAL (9MHz)

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

USB CONN BOARD

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

< CAPACITOR >

C950 1-126-923-91 ELECT 220uF 20% 10V
C951 1-164-156-11 CERAMIC CHIP 0.1uF 25V

< CONNECTOR >

CN950 1-819-866-11 CONNECTOR, USB (A) (USB)
CN951 1-779-275-11 CONNECTOR, FFC (LIF (NON-ZIF)) 7P

< DIODE >

D951 6-501-730-01 DIODE MAZ8051GMLS0 (for SUFFIX-14)
D952 6-501-730-01 DIODE MAZ8051GMLS0 (for SUFFIX-14)

< GROUND TERMINAL >

ET951 1-537-771-21 TERMINAL BOARD, GROUND

< JUMPER RESISTOR >

JR951 1-216-864-11 SHORT CHIP 0

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

R959 1-216-805-11 METAL CHIP 47 5% 1/10W
R960 1-216-805-11 METAL CHIP 47 5% 1/10W
R961 1-216-805-11 METAL CHIP 47 5% 1/10W
R962 1-216-805-11 METAL CHIP 47 5% 1/10W
R963 1-216-805-11 METAL CHIP 47 5% 1/10W

R964 1-216-805-11 METAL CHIP 47 5% 1/10W
R965 1-216-805-11 METAL CHIP 47 5% 1/10W
R966 1-216-805-11 METAL CHIP 47 5% 1/10W
R970 1-216-809-11 METAL CHIP 100 5% 1/10W

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

62

BOARDS” (page 4) of the servicing notes for suffi x-12/-13/-14.

Ref. No. Part No. Description Remark

MISCELLANEOUS

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

57 1-832-906-21 CABLE, FLEXIBLE FLAT (27 CORE)
60 1-831-774-21 CABLE, FLEXIBLE FLAT (9 CORE)
62 1-832-678-21 CABLE, FLEXIBLE FLAT (7 CORE)

(for SUFFIX-14)

62 1-832-680-21 CABLE, FLEXIBLE FLAT (7 CORE)

(for SUFFIX-12/-13)

63 1-835-333-21 CABLE, FLEXIBLE FLAT (21 CORE)

64 1-457-413-11 CORE, FERRITE
65 1-832-664-21 CABLE, FLEXIBLE FLAT (5 CORE)
101 1-832-838-21 CABLE, FLEXIBLE FLAT (13 CORE)

0 106 1-829-387-11 CORD, POWER (AR)
0 106 1-834-966-21 CORD, POWER (AEP, E2, E51)

0 106 1-834-978-11 CORD, POWER (MX)

107 1-835-332-21 CABLE, FLEXIBLE FLAT (27 CORE)
109 1-500-868-11 CORE, FERRITE
152 1-831-744-21 CABLE, FLEXIBLE FLAT (5 CORE)
201 1-797-193-12 MECHANICAL, CD (DLM3A)

0 206 A-4735-357-A BASE ASSY, OP (KSM-213D)
207 1-832-404-21 CABLE, FLEXIBLE FLAT (16 CORE)

0 M601 1-787-400-11 D.C. FAN
0 PT003 1-445-338-11 TRANSFORMER, POWER (MX)
0 PT003 1-445-346-11 TRANSFORMER, POWER (E2, E51, AR)

HCD-EC68USB

Ver. 1.1

0 PT004 1-445-340-11 TRANSFORMER, POWER (AEP)
S201 1-771-853-11 SWITCH, DETECTION (LIMIT)

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

ACCESSORY

***********

0 1-569-008-22 ADAPTOR, CONVERSION 2P (E2, E51)

Note: Refor to “SUFFIX-12/-13/-14 DISCRIMINATION OF PRINTED WIRING

BOARDS” (page 4) of the servicing notes for suffi x-14.

6363

HCD-EC68USB

REVISION HISTORY

Checking the version allows you to jump to the revised page.
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

1.1 2008.06 Addition of 120V AC area in E model