Recording system4-track 2-channel stereo
Frequency response40 – 13,000 Hz (±3 dB),
(DOLBY NR OFF)using Sony TYPE I cassette
40 – 14,000 Hz (±3 dB),
using Sony TYPE II cassette
Wow and flutter±0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
±0.2% W.Peak (DIN)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
US, Canadian models:87.5 – 108.0 MHz (100 kHz step)
Other models:87.5 – 108.0 MHz (50 kHz step)
AntennaFM lead antenna
Antenna terminals75 Ω unbalanced
Intermediate frequency10.7 MHz
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength660 nm
Output Level–18 dBm
SERVICE MANUAL
HCD-ZX10 is the tuner, deck, CD and amplifier
section in MHC-ZX10.
Model Name Using Similar MechanismNEW
CD
SECTION
TAPE DECK
SECTION
CD Mechanism TypeCDM53F-K2BD38
Base Unit TypeBU-K2BD38
Optical Pick-up TypeKSM-213DAP/Z-NP
Model Name Using Similar MechanismNEW
Tape Transport Mechanism TypeTCM-230AWR12
US Model
Canadian Model
AEP Model
UK Model
Amplifier section
AUDIO POWER SPECIFICATIONS:
(US model only)
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
with 8 Ω loads both channels driven, from 120–
10,000 Hz; rates 110 W per channel minimum
RMS power, with no more than 10 % total
harmonic distortion from 250 mW to rated output.
Outputs
MD OUT:voltage 250 mV
(phono jacks)impedance 1 kΩ
PHONES:accepts headphones of
(stereo mini jack)8 Ω or more
FRONT SPEAKER:accepts impedance of 8 to 16 Ω
SURROUND SPEAKER: accepts impedance of 16 Ω
SUPER WOOFER:Voltage 1 V, impedance 1 kΩ
CD player section
SystemCompact disc and digital audio
LaserSemiconductor laser
Laser outputMax. 44.6
Wavelength780 – 790 nm
Frequency response2 Hz – 20 kHz (±0.5 dB)
Signal-to-noise ratioMore than 90 dB
Dynamic rangeMore than 90 dB
system
(λ=780nm)
Emission duration: continuous
µ
*This output is the value measured
at a distance of 200 mm from the
objective lens surface on the
Optical Pick-up Block with 7 mm
aperture.
Power requirements
US, Canadian models:120 V AC, 60 Hz
Except US, Canadian models:
Power consumption
US model:190 W
Canadian model:195 W
European model:200 W
Dimensions (w/h/d)Approx. 250 x 375 x 395 mm
Mass
US, Canadian models:Approx. 11.5 kg
Except US, Canadian models:
Supplied accessories:AM loop antenna (1)
230 V AC, 50/60 Hz
Approx. 11.0 kg
FM lead antenna (1)
Remote Commander (1)
Batteries (2)
Speaker cords (2)
Front speaker pads (8)
SAFETY CHECK-OUT
(US model only)
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers).
Leakage current can be measured by any one of three methods.
1.A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2.A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3.Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
Design and specifications are subject to change
without notice.
To Exposed Metal
Parts on Set
0.15µF
1.5kΩ
AC
voltmeter
(0.75V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
2
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 flexible 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 reflective 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.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
MODEL IDENTIFICATION
— BACK PANEL —
Parts No.
TABLE OF CONTENTS
1. GENERAL ·········································································· 4
2. DISASSEMBLY
2-1. Case ···················································································· 7
2-2. Front Panel Section ···························································· 7
2-3. Tape Mechanism Deck Section (TCM-230AWR12) ·········· 8
2-4. Back Panel Section ····························································· 8
2-5. Main Board, Front AMP Board ·········································· 9
2-6. CD Base Unit (BU-K2BD38)············································· 9
2-7. CD Mechanism Deck Section (CDM53F-K2BD38)········ 10
2-8. Fitting Base (Guide) Assy, Bracket (Chassis) and
Fitting Base (Magnet) Assy ·············································· 10
2-9. Tray (Sub) ········································································· 11
2-10. Chassis (Mold B) Section, Stocker Section and
6-23. IC Block Diagrams ··························································· 47
6-24. IC Pin Descriptions ·························································· 50
7. EXPLODED VIEWS
7-1. Back Panel Section ··························································· 54
7-2. Front Panel Section ·························································· 55
7-3. Chassis Section ································································· 56
7-4. CD Mechanism Deck Section-1 (CDM53F-K2BD38) ···· 57
7-5. CD Mechanism Deck Section-2 (CDM53F-K2BD38) ···· 58
7-6. Base Unit Section (BU-K2BD38A) ································· 59
7-7. Tape Mechanism Deck Section (TCM-230AWR12) ········ 60
8. ELECTRICAL PARTS LIST ······································· 61
MODEL
US model
CND model
AEP, G, AED, UK, CIS models
• Abbreviation
CND : Canadian model
AED : North European model
G: German model
PARTS No.
4-226-747-0s
4-226-747-1s
4-226-747-2s
3
SECTION 1
GENERAL
ws
wa
w;
ql
12
qk
qj
0
qa
qs
qd
qf
qg
qh
ef
ed
es
ea
wd wf wg wh3 45 6 789
wj
wk
wl
e;
1?/1 button and indicator
2TAPE A h button and indicator
3TAPE A H button and indicator
4TAPE B h button and indicator
5TAPE B H button and indicator
6x button
7CD indicator
8SOUND MODE indicator
9SET UP MODE indicator
q;CINEMA SPACE button and indicator
qaV-GROOVE button and indicator
qsMODE SELECT button
qdPUSH ENTER button/Multi stick
qfTUNER/BAND button
qgu button
qhVOLUME knob
qjZ 1 to Z 5 buttons
qkDISC 1 to DISC 5 buttons
qlPHONES jack
w;FUNCTION button
waDISPLAY button
wsTIMER SELECT indicator
wd. button
wf> button
wgm button
whM button
wjGROOVE EX button
wkGROOVE button
wlTAPE B Z button
e;DISC 1 to DISC 5 indicator
eaTAPE A Z button
esREC PAUSE/START button
edHI-DUB button
efCD SYNC button
4
1
2,3,4,5,6
?/1
Step 2: Setting the time
You must set the time before using the timer
functions.
The clock is on a 24-hour system for the European
model, and on a 12-hour system for other models.
For illustration purposes, the 24-hour system
(Power)
model is used.
This section is extracted from
instruction manual.
Press MODE SELECT when the system
is turned off.
“Clock Set ?” appears.
When the system is in the Power Saving
Mode, “Clock Set ?” will not appear. Either
set Power Saving Mode off, or follow the
steps on the following page (“To change the
time”) after turning the power on.
Press PUSH ENTER.
The hour indication flashes.
1
E
e
e
E
2
(continued)
To attach the front speaker pads
Attach the supplied front speaker pads to the
bottom of the speakers to stabilize the speakers
Step 1: Hooking up the system
and prevent them from slipping.
Getting Started
ENTER.
ENTER.
To change the time
The previous explanation shows you how to set
Up Mode”, then press PUSH ENTER.
the time while the power is off. To change the
time while the power is on, do the following:
1 Press MODE SELECT repeatedly to select “Set
2 Move the multi stick toward b or B repeatedly
to select “Clock Set ?”, then press PUSH
to select “Timer Set Up ?”, then press PUSH
3 Move the multi stick toward b or B repeatedly
4 Perform steps 3 through 6 on the left.
Inserting two size AA (R6)
batteries into the remote
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
Tip
With normal use, the batteries should last for about
six months. When the remote no longer operates the
system, replace both batteries with new ones.
Note
If you do not use the remote for a long period of time,
remove the batteries to avoid possible damage from
battery leakage.
When carrying this system
Do the following to protect the CD mechanism.
Make sure that all discs are removed from the
unit.
appears in the display.
“LOCK” appears in the display.
1 Press FUNCTION repeatedly until “CD”
2 Hold down V-GROOVE and press ?/1 so that
6
7
repeatedly to set the hour.
Move the multi stick toward v or V
3
Move the multi stick toward B.
The minute indication flashes.
4
repeatedly to set the minute.
Move the multi stick toward v or V
5
Press PUSH ENTER.
6
To cancel the menu operation
Press MODE SELECT.
Right (B)Left (b)
PUSH
ENTER
Up (v)
your finger on the center of the multi stick and
move in the direction you want (up/down or left/
Tips
right shown v/V or b/B in this manual).
• Refer to the illustration to use the multi stick. Place
Down (V)
• If you’ve made a mistake, start over from step 1.
5
*
1)
2)
*
*
*
*
*
Repeat Set Up ? (22)
*
CD Set Up ?
Set Up Mode
Effect OnpOff/OffpOn (33)
Items in “Sound Mode” and “Set Up Mode”
The numbers in parenthesis denotes the page number for the item.
Sound Mode
CD Edit Start ? (30)
Play Mode Set Up ? (12)
File Select (33)
P File Memory (37)
PGM Check Clear (25, 29)
Program Set ? (24, 27)
Equalizer Control (36)
Mode End
Stereo Mono ? (15)
*
TUNER Set Up ?
*
Cinema Space (35)
Mode End
TUNER Memory ? (8)
PTY Select ? (38)
TUNER Erase ? (9)
Mode End
Direction Set Up ? (13, 16, 18, 20)
TAPE Set Up ?
operation, press MODE
SELECT.
• To cancel the menu
Mode End
Clock Set ? (6)
DOLBY NR Set Up ? (14, 17, 19)
cannot be selected depending on
the situation.
• The items with asterisk (*)
in the menu. In order to select the
• The items in double box are not
Timer Set ? (41, 43)
Timer Set Up ?
doublebox items, press the
corresponding buttons on the
front panel or on the remote.
• Select “Mode End” to finish the
Spectrum Set Up ? (34)
Mode End
Timer Select ? (42, 44)
Display Set Up ?
Cannot be selected during CD
playback.2)Cannot be selected during CD
1)
program playback.
menu operation.
Mode End
Dimmer Set Up ? (34)
Mode End
Sony Corporation Printed in Malaysia
6
SECTION 2
r
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
2-1. CASE
1 three screws
(BVTT 3 × 8)
5 Remove the case
in the arrow direction.
4 three screws
(case 3 TP2)
2 two screws
(BVTT 3 × 8)
3 three screws
(case 3 TP2)
2-2. FRONT PANEL SECTION
1 flat type wire (15core)
(CN601)
7 front panel section
4 connector
(CN1691)
5 connecto
(CN914)
3 flat type wire (11core)
(CN503)
2 flat type wire (17core)
(CN001)
6 three screws
(BVTT 3 × 6)
7
2-3. TAPE MECHANISM DECK SECTION
n
(TCM-230AWR12)
2 two screws
(BVTP 3 × 8)
1 two screws
(BVTP 3 × 8)
3 tape mechanism deck section
(TCM-230AWR12)
2-4. BACK PANEL SECTION
4 flat type wire (13core) (US)
flat type wire (15core) (AEP)
(CN502)
2 connector
(CN902)
qa three screws
(BVTP 3 × 8)
3 connector
(CN903)
1 connector
(CN901)
claws
qd connector
(CN941)
qs Remove the back panel sectio
in the arrow direction.
0 two screws
(BVTP 3 × 8)
9 three screws
(BVTP 3 × 8)
8 screw
(BVTP 3 × 8)
7 four screws
(BVTP 3 × 8)
6 five screws
(BVTP 3 × 8)
5 screw
(BVTP 3 × 8)
8
2-5. MAIN BOARD, FRONT AMP BOARD
1 three screws
(BVTP 3 × 6)
3 two screws
(PTPWH M 2.6)
5 two screws
(PTPWH M 2.6)
4 spring (insulator),
compression
6 spring (insulator),
compression
7 CD base unit
(BU-K2BD38)
2 chassis
)
qs two screws
(BVTP 3 × 8)
0 two screws
(BVTP 3 × 8)
8 connector
(CN801)
qa heat sink
9 two screws
(BVTP 3 × 16)
5 two connectors
(CN803, CN804)
qd Remove the FRONT AMP board
in the arrow direction.
2-6. CD BASE UNIT
(BU-K2BD38)
7 connector
(CN913)
1 connector
(CN713)
6 MAIN board
3 flat type wire (19core
(CN523)
4 two screws
(BVTP 3 × 8)
2 flat type wire (17core)
(CN522)
9
2-7. CD MECHANISM DECK SECTION
(CDM53F-K2BD38)
4 four screws
(sumitite (B3), +BV)
2 two screws
(BVTT 3 × 6)
3 chassis, sub
5 CD mechanism deck section
(CDM53F-K2BD38)
2-8. FITTING BASE (GUIDE) ASSY, BRACKET (CHASSIS) AND
FITTING BASE (MAGNET) ASSY
2 four screws
(BVTP M2.6)
4 two screws
3 base
(guide) assy, fitting
1 two connectors
(CN709, 715)
5 bracket
(chassis)
(BVTP M2.6)
7 four screws
(BVTP M2.6)
1 three screws
(BVTT 3 × 6)
6 connector
(CN710)
8 base (magnet) assy, fitting
4 three screws
(BVTP M2.6)
10
2-9. TRAY (SUB)
)
1 Rotating the pulley (LD), shift the slider (selection) in the arrow A direction.
2 Rotating the pulley (mode) in the arrow direction, adjust the tray (sub) to be removed.
3 Rotating the pulley (LD), shift the slider (selection) in the arrow B direction.
4 Rotating the pulley (mode) in the arrow direction, remove the tray (sub) to be removed.
pulley (LD)
stocker
section
tray (sub)
A
B
slider (selection)
pulley (mode)
2-10. CHASSIS (MOLD B) SECTION, STOCKER SECTION AND
SLIDER (SELECTION)
Note : In mounting the parts, refer to page 12 and 13.
6 two screws
(PTPWH M2.6)
5 stocker
section
pulley (LD)
4 two step
screws
7 slider (selection)
8 washer
9 compression
spring
1 three screws
(BVTP M2.6)
4 two step screws
2 chassis (mold B) section
Note: Rotating the pulley (LD),
shift the slider (selection
to the left.
3 gear (eject)
11
2-11. GEARS INSTALLATION
3 gear (gear B)
portion A
Adjust the gear (gear B) with the
portion A as shown.
1 Slide the slider (U/D)
fully in the arrow
direction.
2 gear (U/D slider)
slider (U/D) gear
Adjust the gear so that it meshes with
the bottom tooth of slider (U/D)gear,
as shown.
2-12. SLIDER (SELECTION) INSTALLATION
2 gear (chuking)
rotary encoder
Align with the slot of
rotary encoder.
6 two screws
(PTPWH M2.6)
4 gear (gear A)
gear
(gear B)
Adjust so as to be aligned with
gear (B) linearly,as shown.
5 washer
4 compression spring
7 Insert the slider (selection)
into the portion A.
linearly
portion A
12
3 convex portion of
slider (selection)
gear (chuking)
1 rotary encoder
Insert a convex portion into
a groove of gear (chuking).
align marking
2-13. STOCKER SECTION INSTALLATION
n
1 stocker section
2 portion A of tray (sub)
Hook the portion A of tray (sub)
to the slider (selection).
3 two step screws
2-14. CHASSIS (MOLD B) SECTION INSTALLATION
potion A
of tray (sub)
3 two step screws
sticking of
slider (selection)
2 Insert the gear (eject)
under the gear (LD
deceleration).
gear (LD deceleration)
3 three screws
(BVTP M2.6)
portion A
portion B of
slider (selection)
1 Insert the portion A of
chassis (mold B) sectio
into the portion B of
slider (selection).
13
SECTION 3
TEST MODE
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press three buttons x , DISPLAY , and DISC 5 simultaneously.
2. The fluorescent indicator tube displays “COLD RESET” and
the set is reset.
[CD Ship Mode]
• This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Press V-GROOVE button and ?/1 button simultaneously.
3. After the "STANDBY" display blinks six times, a message
“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.
[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the
memory. The hot reset mode functions same as if the power
cord is plugged in and out.
Procedure:
1. Press three buttons x , DISPLAY , and DISC 1 simultaneously.
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[CD Service Mode]
• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x , DISPLAY , and Z 3 simultaneously.
4. The CD service mode is selected.
5. With the CD in stop status, turn the shuttle knob clockwise to
move the pickup to outside track, or turn the shuttle knob
counter-clockwise to inside track.
6. To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Press three buttons in the same manner as step 2.
Note: • Always move the pickup to most inside track when exiting from
this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be
chipped.
[VACS ON/OFF Mode]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
Press the ENTER and x buttons simultaneously. The message
“VACS OFF” or “VACS ON” appears.
[Change-over of MW Tuner Step between 9 kHz and
10 kHz]
• A step of MW channels can be changed over between 9 kHz
and 10 kHz.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “MW”.
3. Press ?/1 button to turn the set OFF.
4. Press MODE SELECT and ?/1 buttons simultaneously, and
the display of fluorescent indicator tube changes to “MW 9 k
STEP” or “MW 10 k STEP”, and thus the channel step is
changed over.
[GC Test Mode]
• This mode is used to check the software version, FL tube, LED,
keyboard and VACS.
Procedure:
1. Press three buttons x , DISPLAY , and DISC 2 simultaneously.
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,
press DISC 1 . The model number and destination are displayed.
4. Each time DISC 1 is pressed, the display changes starting
from MC version, GC version, VC version, CD version, CDM
version, ST version, TC version, TA version, TM version and
BR version in this order, and returns to the model number and
destination display.
5. When DISC 3 is pressed while the version numbers are being
displayed except model number and destination, year, month
and day of the software creation appear. When DISC 3 is
pressed again, the display returns to the software version display.
When DISC 1 is pressed while year, month and day of the
software creation are being displayed, the year, month and day
of creation of the software versions are displayed in the same
order of version display.
6. Press DISC 2 button, and the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
“K 0 VO 0 STICK N”. Each time a button is pressed, “K 0”
value increases. However, once a button is pressed, it is no longer
taken into account.
“VO 0” value increases like 1, 2, 3 ... if rotating VOLUME
knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.
Moving the stick changes the “STICK N” display.
When moved up: “STICK
When moved down: “STICK r”
When moved to the left : “STICK T”
When moved to the right : “STICK t”
8. Also when DISC 3 is pressed after lighting of all LEDs and FL
tubes, value of VACS appears.
9. To exit from this mode, press three buttons in the same manner
as step 1, or disconnect the power cord.
R”
14
[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, CD and Tape.
Procedure:
1.Press the ?/1 button to turn on the set.
2.Press the three buttons of x , DISPLAY and DISC 3
simultaneously.
3.A message “TEST MODE” appears on the FL display tube.
4 When f (STIC UP) button is pressed, GEQ increases to its
maximum and a message “GEQ MAX” appears.
5.When F (STIC DOWN) button is pressed, GEQ decreases to
its minimum and a message “GEQ MIN” appears.
6.When g (STIC LEFT) or G (STIC RIGHT) button is pressed,
GEQ is set to flat and a message “GEQ FLAT” appears.
7.When the VOLUME control knob is turned clockwise even
slightly, the sound volume increases to its maximum and a
message “VOLUME MAX” appears for two seconds, then the
display returns to the original display.
8.When the VOLUME control knob is turned counter-clockwise
even slightly, the sound volume decreases to its minimum and
a message “VOLUME MIN” appears for two seconds, then
the display returns to the original display.
9.In the test mode, the default-preset channel is called even when
the TUNER is selected and an attempt is made to call the preset
channel that has been stored in memory, by operating the Shuttle
knob. (It means that the memory is cleared.)
10. When CD is selected and press MODE SELECT , and press
ENTER when “Set up Mode” is displayed.
Press ENTER when “CD Set up?” is displayed.
Move the stick left and right to display “CD Edit Start?”, and
press ENTER , the disc that is being chucked at this moment
becomes the default setting. It means that the default disc only
is accessed when any other discs are selected even though the
display indication changes accordingly. At the same time, the
Z1 to Z5 cannot be accepted. (It means that the tray motor
and the turntable motor are disabled of their operation.)
11. When a tape is inserted in Deck B and recording is started, the
input source function selects VIDEO automatically.
12. When x button is pressed to stop recording, the Tape (Deck)
B is selected and tape is rewound using the j button, tape
is rewound, tape is stops at around the record-starting position
and playback of the recorded portion of the tape is started. If
PAUSE is inserted even once during recording, tape is rewound
to the position around the PAUSE position and is played back.
13. When the HI-DUB Button is press during playback of Deck
B, either normal speed or high speed can be selected by this
button.
14. Select the desired loop by pressing MODE SELECT , and
press ENTER when “Set up Mode” is displayed.
Press ENTER when “CD Set up?” is displayed.
Move the stick left and right to display “Tape Set Up?”, and
press ENTER .
Press ENTER when “Direction Set Up?” is displayed.
Move the stick left and right to display “Cycle?”, and press
ENTER .
Insert a test tape AMS-110A or AMS-RO to Deck A.
15. Press the CD SYNC button to enter the AMS test mode.
16. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
17. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
18. When the check is complete, a message of either OK or NG
appears.
19. When you want to exit this mode, press the ?/1 button twice.
The cold reset is enforced at the same time.
15
[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
• If an error occurred:
The aging operation stops and display status.
• If no error occurs:
The aging operation continues repeatedly.
1. Operating method of Aging Mode
Turn on the main power and select “CD” of the function.
1) Set a disc in DISC1 tray. Select ALL DISC CONTINUE, and REPEAT OFF.
2) Load the tapes recording use into the decks A and B respectively.
3) Press three buttons x , DISPLAY , and DISC 4 simultaneously.
4) Aging operations of CD and tape are started at the same time.
• Tape Deck
1.The tape in deck A is rewound. “TAPE A AG-1” is displayed.
2.The FWD side of deck A is played for two minutes.
“TAPE A AG-2” is displayed.
3.The tape in deck A is fast forwarded. “TAPE A AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
4.The RVS side of deck A is played for two minutes.
“TAPE A AG-4” is displayed.
5.The tape in deck A is rewound. “TAPE A AG-5” is displayed.
6.The FWD side of deck B is played for two minutes.
“TAPE B AG-2” is displayed.
7.The tape in deck B is fast forwarded. “TAPE B AG-3” is displayed. Fast forward is carried out for 20 seconds or to the tape end.
8.The RVS side of deck B is played for two minutes.
“TAPE B AG-4” is displayed.
9.The tape in deck A is rewound. “TAPE A AG-5” is displayed.
10. Repeated from step 2.
• CD
1.The tray rotates.
2.DISC 5 is chucked.
3.The TOC is read.
4.The first track is played for 3 seconds.
5.The last track is played for 3 seconds.
6.DISC 1 is open.
7.DISC 1 is close.
8.Repeated from step 2.
16
2. Correction of Errors
[When due to tape deck]
Stopped while tape aging operation with the “ ” displayed state.
[When due to CD]
Press x , DISPLAY , and Z together to display the error code.
• Display of number of mechanism errors
Move the stick to the left and right to display “CDM Err Count *”.
* is the number of mechanism errors.
• Display of mechanism error
Move the stick to the left and right to display “CDM E**D##$$%%!!”.
Move the stick up and down to send the error number.
** : Error number 00 is the latest error.
The larger the number, the older will the error be. (Maximum 9)
## : FF is the mechanism error after mechanism initialization ends.
$$ : Judge from the first digit of the error number. (Don’t care the second digit.)
When the error number is 1 or 2, it indicates mechanism error in tray loading between the stocker position and behind it.
%% : Judge from the first digit of the error number. (Don’t care the second digit.)
When the error number is 2, it indicates mechanism error in the up/down movements of the stocker.
!!: Judge from the first digit of the error number. (Don’t care the second digit.)
When the error number is 2, it indicates mechanism error during switching of the clamper and mode.
• No DISC error display
Move the stick left and right to display “No Disc Count *”.
* means the number of no discs.
• No DISC error display
Move the stick left and right to display “No E**D##$$%%00”.
Move the stick up and down to send the error number.
** : Error number 01 is the latest error.
The larger the number, the older will the error be. (Maximum 3)
## : 01 .... FOCUS ERROR
02 .... GFS ERROR
03 .... SET UP ERROR
$$ : 00 .... Judged as No DISC without attempting chucking retry
02 .... Judged as No DISC after chucking retry
%% : Judged with the first digit of the error number in the state where No DISC has been determined.
(Don’t care the second digit.)
1 ...... STOP
2 ...... SET UP
3 ...... TOC Read
4 ...... Access
5 ...... PLAY
6 ...... PAUSE
7 ...... Manual Search (during PLAY)
8 ...... Manual Search (during PAUSE)
3. Ending the Aging Mode
1) End the Aging Mode with the power off.
2) To reset the CD error history, be sure to perform cold reset.
17
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
2. Demagnetize the record/playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.
Torque Measurement
Mode
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
3.04 – 6.96 N • m
(31 to 71 g • cm)
(0.43 – 0.98 oz • inch)
0.20 – 0.58 N • m
(2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
3.04 – 6.96 N • m
(31 to 71 g • cm)
(0.43 – 0.98 oz • inch)
0.20 – 0.58 N • m
(2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
6.97 – 14.02 N • m
(71 to 143 g • cm)
(0.98 – 1.99 oz • inch)
0.98 N • m or more
(100 g or more)
(3.53 oz or more)
0.98 N • m or more
(100 g or more)
(3.53 oz or more)
DECK SECTION0 dB=0.775V
1. Demagnetize the record/playback head with a head demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjusted.
4. The adjustments should be performed with the rated power supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit adjustment.)
6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwise
specified.
Signal
P-4-A100
WS-48B
P-4-L300
10 kHz, –10 dB
3 kHz, 0 dB
315 Hz, 0 dB
Record/Playback Head Azimuth Adjustment
(Deck A, Deck B)
Note: Perform this adjustments for both decks.
Procedure:
1. Mode : Playback
test tape
P-4-A100
(10kHz, –10dB)
set
main board
CN301
Pin 1 (R-ch)
Pin 3 (L-ch)
Used forTape
Azimuth Adjustment
Tape Speed Adjustment
Level Adjustment
level meter
+
–
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw so
that outputs match within 1 dB of peak.
L-CH
peak
screw
position
R-CH
peak
output
level
within
1 dB
L-CH
peak
R-CH
peak
within 1dB
screw
position
18
3. Mode: PlaybackTape Speed Adjustment (Deck A)
)
test tape
P-4-A100
(10kHz, –10dB)
set
main board
CN301
Pin 3 (L-ch)
Pin 2 (GND)
L
R
oscilloscope
Note: Set the test mode using the following method and begin tape
speed adjustment.
In the test mode, the speed will switch to double speed or
normal speed each time the HI-SPEED DUB button is pressed.
Procedure:
With the power turned ON, press the x button, DISPLAY button,
and DISC 3 button simultaneously.
(The “VOLUME” on the fluorescent display tube will blink while
Pin 1 (R-ch)
in the test mode.)
To exit the test mode, press the "/1 button.
Waveform of oscilloscope
in phase45°
good
90°
135°
180°
wrong
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location: Playback Head (Deck A)
Record/Playback/Erase Head (Deck B)
ReverseFoward
1. Insert the WS-48B into deck B.
2. Press the H button of deck B.
3. Press the HI-DUB button and play the tape at double speed.
4. Adjust RV1001 of the LEAF SW board so that the reading of
the frequency counter becomes 6000 ± 180 Hz.
5. Press the HI-DUB button and play the tape at normal speed.
6. Adjust RV1002 of the LEAF SW board so that the reading of
the frequency counter becomes 3000 ± 90 Hz.
Adjustment Location: LEAF SW board
Sample Value of Wow and flutter
W.RMS (JIS) less than 0.3%
(test tape: WS-48B)
Playback Level Adjustment (Deck A, Deck B)
Procedure:
Mode: Playback
test tape
P-4-L300
(315Hz, 0dB)
set
main board
CN301
Pin 1 (R-ch)
Pin 3 (L-ch)
level meter
Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301
(L-CH) and RV401 (R-CH)
so that adjustment within the following adjustment level.
Adjustment level:
CN301 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB)
level difference between the channels: within ± 0.5 dB
Adjustment Location: AUDIO board
Adjustment Location
[LEAF SW BOARD]
RV1001(High Speed)
RV1002(Normal Speed
RV1002 RV1001
19
Record Bias Adjustment (Deck B)
e
e
Record Level Adjustment (Deck B)
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the “REC memory
mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO.
(After recording, press the m button without stopping will return to the position where recording was started.)
1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Insert a tape into deck B, press the REC PAUSE/START button,
and then press the H button to start recording.
3. Mode: Record
VIDEO (AUDIO) IN
1) 315 Hz
2) 10 kHz
AF OSC
attenuator
600 Ω
} 50 mV (–23.8 dB)
blank tap
CS-123
set
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the “REC memory
mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this
adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO.
(After recording, press the m button without stopping will return to the position where recording was started.)
1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Insert a tape into deck B, press the REC PAUSE/START button,
and then press the H button to start recording.
3. Mode: Record
VIDEO (AUDIO) IN
315Hz 50 mV (–23.8 dB)
AF OSC
600 Ω
attenuator
set
blank tap
CS-123
4. Mode: Playback
recorded
position
set
main board
CN301
Pin 1 (R-ch)
Pin 3 (L-ch)
level meter
5. Confirm playback the signal recorded in step 2 become adjustment level as follows.
If these levels do not adjustment level, adjust the RV341 (L-CH)
and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4.
Adjustment level: The playback output of 10 kHz level difference
against 315 Hz reference should be ± 1.0 dB.
Adjustment Location: AUDIO board
Adjustment Location:
[AUDIO BOARD]
RV341(Lch),RV441(Rch)
Record Bias
RV311(Lch),RV411(Rch)
Playback Level (Deck A)
4. Mode: Playback
recorded
position
set
main board
CN301
Pin 1 (R-ch)
Pin 3 (L-ch)
level meter
5. Confirm playback the signal recorded in step 2 become adjustment level as follows.
If these levels do not adjustment level, adjust the RV301 (L-CH)
and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.
Adjustment level:
CN301 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location: MAIN board
[MAIN BOARD]
RV301
31
CN301
RV351
Record Level (R ch)
Record Level (L ch)
IC301
RV301 RV401
20
RV441 RV341
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
RV411
RV311
CD SECTION
0V
Center of
waveform
B
Symmetry
A (DC voltage)
level=1.3±0.6Vp-p
r
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
Note: Clear RF signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.45 ± 0.3Vp-p
S-Curve Check
Oscilloscope
BD board
TP(FEO)
TP(VC)
Procedure :
1. Connect oscilloscope to TP (FEO).
2. Connect between TP (FEI) and TP (VC) by lead wire.
3. Connect between TP (AGCCON) and TP (GND) by lead wire.
4. Turn Power switch on.
5. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
6. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak level
within 4 ±1 Vp-p.
S-curve waveform
symmetry
A
within 4 ±1Vp-p
B
E-F Balance (1 Track jump) Check
oscilloscope
BD board
TP (TEO)
TP (VC)
+
–
Procedure:
1. Connect oscilloscope to TP (TEO) and TP (VC) board.
2. Turned Power switch on.
3. Load a disc (YEDS-18) and playback the number five track.
4. Press the u button. (Becomes the 1track jump mode.)
5. Confirm that the level B and A (DC voltage) on the oscilloscope
waveform.
1 track jump waveform
7. After check, remove the lead wire connected in step 2 and 3.
Note : • Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
TP(RF)
TP(VC)
Procedure :
1. Connect oscilloscope to TP (RF).
2. Connect between TP (AGCCON) and TP (GND) by lead wire.
3. Turned Power switch on.
4. Load a disc (YEDS-18) and playback.
5. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.
6. After check, remove the lead wire connected in step 2.
Specification level: x 100=less than ±22%
A
B
6. After check, remove the lead wire connected in step 1.
RF PLL Free-run Frequency
Procedure :
1. Connect frequency counter to test point (XPCK) with lead wire.
BD board
TP (XPCK)
frequency counte
+
–
2. Turned Power switch on.
3.Put the disc (YEDS-18) in to play the number five track.
Confirm that reading on frequency counter is 4.3218MHz.
21
Adjustment Location:
[BD BOARD] (Conductor Side)
TP
(TEO)
12
(FEO)
TP
(VC)
TP
(AGCCON)
IC103
TP
(RF)
24
TP
(FEI)
TP
TP
(XPCK)
1
40
41
2021
IC101
61
60
TP
(DGND)
1
80
22
SECTION 6
DIAGRAMS
HCD-ZX10
6-1. CIRCUIT BOARDS LOCATION
PANEL board
SUB PANEL board
HP board
LEAF SW board
CD SW board
CLAMP MOTOR board
TRANS board
SUB TRANS board
AUDIO board
FRONT AMP board
TUNER UNIT
MAIN board
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
f
•
• 2 : nonflammable resistor.
• 1 : fusible resistor.
• C : panel designation.
Note: The components identified by mark 0 or dotted line
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• Voltages are taken with a VOM (Input impedance 10 MΩ).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Abbreviation
: internal component.
with mark 0 are critical for safety.
Replace only with part number specified.
under no-signal (detuned) conditions.
Voltage variations may be noted due to normal production tolerances.
Voltage variations may be noted due to normal production tolerances.
F: FM
g : VIDEO/MD (AUDIO)
E: PB (DECK A)
d: PB (DECK B)
G : REC (DECK B)
m: CHROMA
n : Y
o : VIDEO
J: CD
c : digital out
I : PHONO
CND : Canadian model.
4
W or less unless otherwise
• Indication of transistor
B
CE
B
CE
C
Q
B
E
These are omitted.
These are omitted.
These are omitted.
SENSOR 2 board
SENSOR board
OUT SW board
INT/COUNT SW board
CONNECTOR board
LOAD MOTOR board
BD board
IN SW board
23
For printed wiring boards.
Note:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
a
•
• b : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)parts face are indicated.
: Through hole.
23
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