Sony HCD-EH10 User manual

SERVICE MANUAL
COMPACT DISC DECK RECEIVER
HCD-EH10
Ver. 1.4 2006.03
SPECIFICATIONS
9-879-855-05
2006C05-1
© 2006.03
Sony Corporation
Personal Audio Division
Published by SonyTechno Create Corporation
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
•HCD-EH10 is the amplifier, CD player, tape deck and
tuner section in CMT-EH10.
Model Name Using Similar Mechanism NEW
CD Section Base Unit Name BU-K8BD83S-WOD
Optical Pick-up Name KSM-213CDP
TAPE Section Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type H-21SB
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUTAND TOTAL HARMONIC DISTORTION:
(The United States model only)
With 4 ohm loads, both channels driven, from 100 – 20,000 Hz; rated 4 watts per channel
minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to
rated output.
Amplifier section
North-American model:
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 10% THD)
European model:
DIN power output (rated): 4 + 4 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 10% THD)
Music power output (reference): 7 + 7 W
The following are measured atAC 240 V, 50/60 Hz (Australian model), AC 220 V, 60 Hz (Korean
model), AC 120 V, 50/60 Hz (Taiwanese model), AC 120 or 240 V, 50/60 Hz (other models)
DIN power output (rated): 4 + 4 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 5 + 5 W (4 ohms at 1 kHz, 10% THD)
Inputs
AUDIO IN (stereo mini jack): Sensitivity 800 mV, impedance 47 kilohms
Outputs
PHONES (stereo mini jack): Accepts headphones with an impedance of 8 ohms or more
SPEAKER: Accepts impedance of 4 ohms
CD player section
System: Compact disc and digital audio system
Laser Diode Properties
Emission duration: continuous
Laser Output*: Less than 44.6µW
*This output is the value measurement at a distance of 200mm from the objective lens surface
on the Optical Pick-up Block with 7mm aperture.
Frequency response: 20 Hz – 20 kHz
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 90 dB
Tape deck section
Recording system: 4-track 2-channel, stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
Antenna:
FM lead antenna
AM loop antenna
FM tuner section:
Tuning range
NorthAmerican model: 87.5 – 108.0 MHz (100 kHz step)
Other models: 87.5 – 108.0 MHz (50 kHz step)
Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
NorthAmerican models: 530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
European model: 531 – 1,602 kHz (with 9 kHz tuning interval)
Other models: 530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,602 kHz (with 9 kHz tuning interval)
Intermediate frequency: 450 kHz
General
Power requirements
NorthAmerican model: AC 120 V, 60 Hz
European model: AC 230 V, 50/60 Hz
Australian model: AC 230 – 240 V, 50/60 Hz
Korean model: AC 220 V, 60 Hz
Taiwanese model: AC 120V, 50/60 Hz
Other models: AC 110 – 120 or 220 – 240 V, 50/60 Hz
Adjustable with voltage selector
Power consumption:
NorthAmerican model: 23 W
European model: 22 W
1.0 W (in Power off)
Other models: 22 W
Dimensions (w/h/d) (excl. speakers):Approx. 158 ×241.5 ×233 mm
Mass (excl. speakers):
Approx. 2.1 kg
Supplied accessories: Remote Commander (1)/FM/AM antenna (1)
Design and specifications are subject to change without notice.

2
HCD-EH10
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 the 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.
1. SERVICING NOTES ............................................... 3
2. GENERAL ................................................................... 4
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Rear Cabinet Section ....................................................... 6
3-3. Front Cabinet Section, Top Cabinet Section and
MAIN Board.................................................................... 7
3-4. Mechanical Deck (H-21SB) ............................................ 7
3-5. Base Unit Section (BU-K8BD83S-WOD) ...................... 8
3-6. Optical Pick-up Block (KSM-213CDP).......................... 8
4. TEST MODE.............................................................. 9
5. MECHANICAL ADJUSTMENTS ....................... 10
6. ELECTRICAL ADJUSTMENTS ......................... 10
7. DIAGRAMS
7-1. Block Diagram – CD SERVO Section – ......................... 14
7-2. Block Diagram – TUNER Section – ............................... 15
7-3. Block Diagram – MAIN Section –.................................. 16
7-4. Printed Wiring Board – CD Board – ............................... 18
7-5. Schematic Diagram – CD Board – .................................. 19
7-6. Printed Wiring Boards – MAIN Section – ...................... 20
7-7. Schematic Diagram – MAIN Section (1/3) ..................... 21
7-8. Schematic Diagram – MAIN Section (2/3) ..................... 22
7-9. Schematic Diagram – MAIN Section (3/3) ..................... 23
7-10. Printed Wiring Board – PANEL Board – ........................ 24
7-11. Schematic Diagram – PANEL Board – ........................... 25
8. EXPLODED VIEWS
8-1. Overall Section ................................................................ 34
8-2. Front Cabinet Section ...................................................... 35
8-3. Top Cabinet Section ........................................................ 36
8-4. Base Unit Section (BU-K8BD83S-WOD) ...................... 37
9. ELECTRICAL PARTS LIST................................ 38
CAUTION
Use of controls or adjustments or performance of procedures
otherthan thosespecifiedhereinmay resultin hazardousradiation
exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0ON 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.
The following caution label is located inside the unit.
CLASS 1 LASER PRODUCT
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT
This appliance is classified
as a CLASS 1 LASER
product.
This label is located on the
rear exterior.
TABLE OF CONTENTS
Ver. 1.4
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals,metal trim, “metallized”knobs, screws,
and all other exposed metal parts forAC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operatedAC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOMor battery-operatedAC voltmeter.The “limit” indication
is 0.75V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passiveVOM that is suitable. Nearly all battery operated
digital multimeters that have a 2VAC range are suitable. (See
Fig. A)
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
Refer to SUPPLEMENT-1 for the MAIN section of printed
wiring boards and schematic diagrams of US, Canadian,
Singapore, Taiwan, Korean andAustralian models.
When repairing the set ofAEP, UK, East European and Russian,
refer to either of original service manual/SUPPLEMENT-1
according to the set.
1.5 k Ω 0.15 µ FAC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.

3
HCD-EH10
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free 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 flow)
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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
Fig.1 Method to push the SW750
SW750
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 pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the SW750. (push switch type)
The following checking method for the laser diode is operable.
•Method
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the SW750 as shown in Fig.1.
Note: Donotpushthedetectionleverstrongly, or it may be bent or damaged.
3. Press the CD ubutton.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
Ver. 1.4
•MODEL IDENTIFICATION
Power Voltag
e
Indication
– Rear Cabinet –
MODEL POWER VOLTAGE INDICATION
US, Canadian models AC 120 V, 60 Hz
AEP, UK, East European, AC 230 V, 50/60 Hz
Russian models
Singapore model AC 110 – 120 or 220 – 240 V,
50/60 Hz
Australian model AC 230 – 240 V, 50/60 Hz
Korean model AC 220 V, 60 Hz
Taiwan model AC 120 V, 50/60 Hz

4
HCD-EH10 SECTION 2
GENERAL This section is extracted from
instruction manual.
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TO
ADJUSTTHEVOLUME
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YOUROWN#$PROGRAM
 0RESS#,/#+4)-%23%4
Ȯ

 0RESS¼Ê
Ȩ
REPEATEDLYTOSELECTh0,!9v
ANDTHENPRESS%.4%2
Ȱ

h/.4)-%vAPPEARSANDTHEHOURINDICATIONmASHES
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Ȩ
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Ȱ

4HEMINUTEINDICATIONmASHES5SETHEPROCEDURE
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 5SETHESAMEPROCEDUREASINSTEPTOSETTHE
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Ȩ
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SOUNDSOURCEAPPEARSANDTHENPRESS%.4%2
Ȱ
4HE
DISPLAYSHOWSTHETIMERSETTINGS
 0RESS˽¿
Ȣ
TOTURNOFFTHESYSTEM
)FTHESYSTEMISONATTHEPRESETTIMETHE0LAY4IMER
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4OACTIVATEORCHECKTHETIMERAGAINPRESS#,/#+
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PRESS¼Ê
Ȩ
REPEATEDLY
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
4OCANCELATIMERREPEATTHESAMEPROCEDUREASABOVE
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Ȱ

4OCHANGETHESETTINGSTARTOVERFROMSTEP
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4HE0LAY4IMERSETTINGREMAINSASLONGASTHESETTINGISNOTCANCELED
MANUALLY

HCD-EH10
6
Note: Follow the disassembly procedure in the numerical order given.
3-2. REAR CABINET SECTION
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
3-2. REAR CABINET SECTION
(Page 6)
3-3. FRONT CABINET SECTION,
TOP CABINET SECTION AND
MAIN BOARD
(Page 7)
3-5. BASE UNIT SECTION
(BU-K8BD83S-WOD)
(Page 8)
3-6. OPTICAL PICK-UP BLOCK
(KSM-213CDP)
(Page 8)
3-4. MECHANICAL DECK
(H-21SB)
(Page 7)
SET
2 screw
(KTP3 × 8)
32
screw
(KTP3
× 8)
1 two screws
(BVTP3
× 10)
1 two screws
(BVTP3 × 10)
1 two screws
(BVTP3 × 10)
4 connector
(W002)
5 rear cabinet sectio
n

HCD-EH10
7
3-3. FRONT CABINET SECTION, TOP CABINET SECTION AND MAIN BOARD
3-4. MECHANICAL DECK (H-21SB)
8 two screws
(B2.6)
9 top cabinet section
q; MAIN board
4 claw
slide switch (REC/PB) (SW501)
REC lever Note: Adjust so that the space of slide switch (REC/PB) (SW501)
REC lever becames 2.3
± 0.4mm.
4 claw
claw
claw
5 front cabinet section
6 flexible flat (23 core) cable (FFC151)
(CNS104)
1 flexible flat (25 core) cable (FFC701)
(US, Canadian, Singapore, Taiwan, Korean
and Australian models) (CNS111),
flexible flat (27 core) cable (FFC702)
(AEP, UK, East European and Russian models) (CNS112
)
3 lead wire (PIN101)
7 lead wire (PIN102)
2 connector
(SW750)
2 two connectors
(CNP501, CNP502)
2.3
± 0.4mm
3 two screws
(BVTP2.6 × 8)
5 two screws
(BVTP2.6
× 8)
8 cable holder
6
7 two screws
9 mechanical deck
(H-21SB)
5 screw
(BVTP2.6
× 8)
1 screw
2 REC lever
4 PWB holder

HCD-EH10
8
3-5. BASE UNIT SECTION (BU-K8BD83S-WOD)
3-6. OPTICAL PICK-UP BLOCK (KSM-213CDP)
2 two screws
(PWH B2.6)
4 vibration proof rubber (red)
8 base unit sction
(BU-K8BD83S-WOD)
7 CD cover
6 two claws
6 two claws
4 vibration proof rubber (red)
5 vibration proof rubber
(green)
5 vibration proof rubber
(green)
3
2 two screws
(PWH B2.6)
1 flexible flat (23 core) cable (FFC151)
(CN102)
2 Remove four solders.
1 flexible flat (16 core) cabl
e
(CN301)
3 CD board
4 optical pick-up block
(KSM-213CDP)

9
HCD-EH10
SECTION 4
TEST MODE
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 the I/1button to turn the power on.
2. While pressing the xbutton, press the I/1and [DSGX]
buttons.
3. The message “RESET” is displayed and the set is reset.
PANEL TEST
*All segments of liquidcrystal display are tested, and theversion
and released date of the micro computer are displayed.
Procedure:
1. Press the I/1button to turn the power on.
2. While pressing the [DSGX] button, press the [DISPLAY] and
xbuttons.
Then all segments of liquid crystal display are turned on.
3. Press the [FUNCTION] button, the version and released date of
the micro computer are displayed.
example of display:
4. Press the [TUNER/BAND] button, the model name and
distination are displayed.
example of display:
5. To exit from this mode, perform the step 2.
TUNER STEP CHANGE-OVER
*Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
Procedure:
1. Set the FUNCTION to AM, and press the I/1button to turn
the power off.
2. Press the [DISPLAY] button.
3. While pressing the [TUNING +] button, press the I/1button.
4. The message “9K STEP” or “10K STEP” is displayed on the
liquid crystal display, and thus the channel step is changed
over.
0629 V008
Version of micro computer
(In this case, version 008)
released date of micro computer
(In this case, released of June 29)
JE CE2
distination
(In this case, European model)
model name
(In this case, HCD-LFXX)
CD POWER MANEGE
*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 I/1button to turn the power on.
2. Set the FUNCTION to CD.
3. Press the I/1button again to turn the power off (standby).
4. Press the [DISPLAY] button.
5. While pressing the xbutton, press the I/1button.
6. If turns power on and display “CD POWER”, then display
“ON” or “OFF”.
5 REPEAT OFF MODE
*Number of repeat for CD playback is 5 times when the repeat
modeis “REPEAT”.This mode is used toenablesCD torepeat
playback for limitless times.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [FUNCTION] button to select “CD”.
3. Press three buttons of [DSGX], CD uand [DISPLAY]
simultaneously.
4. When the 5 repeat off mode is activated, “NO LIMIT” is
displayed on the liquid crystal display.

10
HCD-EH10 SECTION 5
MECHANICAL ADJUSTMENTS SECTION 6 ELECTRICAL ADJUSTMENTS
•Precaution
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy 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 Torque Meter Meter Reading
2.0 – 8.0 mN⋅m
FWD CQ-102AS (20 – 80 g⋅cm)
(0.28 – 1.12 oz⋅inch)
FWD 0.15 – 0.6 mN⋅m
Back Tension CQ-102C (1.5 – 6.0 g⋅cm)
(0.021 – 0.083 oz⋅inch)
5.0 – 17.7 mN⋅m
FF CQ-201AS (50 – 177 g⋅cm)
(0.7 – 2.48 oz⋅inch)
5.0 – 17.7 mN⋅m
REW CQ-201B (50 – 177 g⋅cm)
(0.7 – 2.48 oz⋅inch)
•Tape Tension Measurement
Mode Tension Meter Meter Reading
FWD CQ-403A more than 80 g
(more than 2.82 oz)
TUNER SECTION 0 dB=1 µV
[AM (MW/LW)]
Setting:
Function : TUNER
BAND button :AM
[FM]
Setting:
Function : RADIO
RADIO BAND button: FM
•Repeat the procedures in each adjustment several times, and
the tracking adjustmentsshould befinallydone bythe trimmer
capacitors.
•Remove FM antenna in FM adjustment.
AM VT VOLTAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L852 531 kHz 1.5 ±0.1 V
Confirmation 1602 kHz 7.2 ±0.5 V
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L851 531 kHz
FM VT VOLTAGE ADJUSTMENT
Adjustment Part Frequency Display Reading on Digital Voltmeter
L805 87.5 MHz 1.75 ±0.1 V
Confirmation 108 MHz 6.2 ±0.5 V
AM RF signal
generator
30% amplitude
modulation by
400 Hz signal
60 cm
set
loop antenna A loop antenna
B
FM RF signal
generator
1 kHz frequency
deviation by FM 75 kHz
signal
Output level:
as low as possible
+
–
level meter
MAIN board
JW148
(GND)
MAIN board
JW403
(TUNER OUT L-ch)
set
MAIN board
CNP802 pin 2
MAIN board
CNP802 pin 1
digital voltmete
r
JW821 (VT)
JW805 (GND)
10 k
Ω
MAIN board
Ver. 1.1

11
HCD-EH10
Adjustment Location:
FM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter
L804 98 MHz
FM DETECTOR ADJUSTMENT
Setting:
Function: TUNER
BAND button: FM
1. Tune the set to 98 MHz.
2. Adjust L806 so that modulation distortion may become the
best in the vicinity of the maximum value where the tuner out
level becomes -156Bs or more.
set
MAIN board
JW403
(TUNER OUT L-ch
)
MAIN board
JW148 (GND)
Carrier frequency : 98 MHz
Modulation : deviation by
FM 75 kHZ
Output level : 60 dB
FM RF Signal
generator
L851
AM Tracking
Adjustment
L805
FM VT
Voltage
Adjustment
L804
FM Tracking
Adjustment
L806
FM Detector
Adjustment
L852
AM VT
Voltage
Adjustment
– MAIN Board (Component Side) –
JW403
(TUNER OUT L-ch
)
JW402
(TUNER OUT R-ch)
JW148
(GND)
JW821
(VT)
CNP802
JW805
(GND)
– MAIN Board (Conductor Side) –
3
1

12
HCD-EH10
0 dB=0.775 VDECK SECTION
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
•Test Tape
Tape Signal Used for
P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note: Remove the sheet (azimuth) before this adjustment.
After the end of adjustment, try to paste sheet (azimuth) peeled off
to be the same position.
Adjust the tape mechanism deck detaching it from the set when there
is no hole for the azimuth adjustment in the set.
Procedure:
1. Mode: Playback
2. Turn the adjustment screwand checkoutput peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Record/Playback/Erase Head
– When there is a hole for the azimuth adjustment –
– When there is no hole for the azimuth adjustment –
set
test tape
P-4-A063
(6.3 kHz, –10 dB) oscilloscope
VH
waveform of oscilloscope
in phase 45 ° 90 ° 135 ° 180 °
good wrong
MAIN board
PHONES jack
(J102)
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak R-CH
peak
within
1dB
Screw
position
R-CH
peak
set
MAIN board
PHONES jack
(J102)
+
–
level mete
r
test tape
P-4-A063
(6.3 kHz, –10 dB)
mechanical dec
k
(H-21SB)

HCD-EH10
1313
HCD-EH10
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 MW 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.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
Procedure :
1. Connect oscilloscope to TP (RFACI) and TP (VC) on the CD
board.
2. Press the I/1button to turn the power ON.
3. Set disc (YEDS-18) on the tray and press the CDubutton
to playback.
4. Confirm that oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
Checking Location:
+
–
CD board
TP (RFACI)
TP (VC)
oscilloscop
e
(DC range)
VOLT/DIV: 200 m
V
TIME/DIV: 500 ns
level:
0.9
± 0.4 Vp-p
TP
(VC)
TP
(RFACI)
IC201
– CD Board (Conductor Side) –

HCD-EH10
1414
HCD-EH10
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – CD SERVO Section –
OPTICAL
PICK-UP BLOCK
(KSM-213CDP)
CH2OUTF CH2FIN
FOCUS/TRACKING COIL DRIVER,
SLED/SPINDLE MOTOR DRIVER
IC402
12 6
CH2OUTR
11
CH1OUTR
13
CH1OUTF
14
CH3OUTF17
CH3OUTR18
SL–
SL+
TRK–
TRK+
FCS–
FCS+
2-AXIS
DEVICE
PD
LD
B
A
D
C
F
E
M402
(SLED)
M
CH4OUTF16
CH4OUTR15
CH2RIN 7
CH1RIN 5
CH1FIN 4
CH3FIN 23
CH3RIN 22
OPIN+ 2
CH4IN 24
OPOUT 27
FFDR
45
PD
67
F
51
E
50
D
60
C
59
B
58
A
57
LD
66
FRDR
46
TRDR
44
TFDR
43
SFDR
41
SRDR
42
MDP
38
SP–
SP+
M401
(SPINDLE)
M
CD DSP
IC201
SYSTEM CONTROLLER
IC701 (1/3)
XTAI 109
XTAO 108
SSTP 39
X201
16.9344MHz
S201
(LIMIT)
CD D +3.3V
CD
RFACO
AOUT1 112
AOUT2 117
70
RFACI
71
XRST
8
MUTE
20
XTACN 7
ACK-MP3 15 SO2
50
A
AUTOMATIC
POWER CONTROL
Q321
P76
34
P25
2
OCU0
11
IREQ-MP3 10
REQ-MP3 14
XLAT-MP3 13
CLK2 90 SC3
6
IC1
10
OCU112
SC2
49
DATA2 12
SCOR 26 AN743
SO3
5
SI3
7
SENS 20
XLAT 16
CLOK 11
DATA 89 SO0
31
SC0
30
TMCK
8
SI0
29
R-CH
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
AMP-STBY
B
(Page 16)
(Page 16)

HCD-EH10
1515
HCD-EH10
7-2. BLOCK DIAGRAM –TUNER Section –
FM MIX
AMP
Q803
FM/AM TUNER,
FM/AM PLL
IC801
RDS DECODER
IC861
36 FMRF-IN 8FMIF-IN 22 MPX-IN
1AMRF-IN
31 AM-OSC
33
SI1
56
V1
55
V0
57
V2
39
AN3
SYSTEM CONTROLLER
IC701 (2/3)
+4V
REGULATOR
Q862
VM +9V RDS +4V
X801
75kHz
2019
XIN
XOUT
16
DI
17
CL
15
CE
18
DO
25
AGC
1
CNP802
ANTENNA
FM/AM
3
BAND-PASS
FILTER
BPF801
AM
TRACKING
L851
AM-RF
AM VT
VOLTAGE
L852
AM-LO
D851
CF801
7AMIF-IN
L803
AM-IFT
34 FMRF-OUT
FM
TRACKING
L804
FM-RF
32 FM-OSC
FM VT
VOLTAGE
L805
FM-LO
VM +9V
11 FM-DET
FM
DETECTOR
L806
FM-DET
3
FM-MIX
30
BO2
29
BO1
23
FMDET-OUT 12 L-OUT
13
R-OUT R-CH
TUNER
5
AM-MIX 24 AMDET-OUT
CF802
CF803
10 TEST
4
FIN
DET AMP
Q861
27
TIN2
2
D0
45
INT3
16
CL
X861
4.332MHz
1413
XIN
XOUT
C
• SIGNAL PATH
: AM
• R-ch is omitted due to same as L-ch.
: FM
(US, Canadian, Singapore)
(AEP, UK, East European, Russian)
(AEP, UK, East European, Russian)
(Page 16)
Ver. 1.3

HCD-EH10
1616
HCD-EH10
7-3. BLOCK DIAGRAM – MAIN Section –
R-CH
+
INPUT SELECT,
ELECTRICAL VOLUME
IC401
28
REC1O
18
OUT1
13
SD
23 C1
21 B1
2PB1P
19 A1
R-CH
CD
A
TUNER
• SIGNAL PATH
: CD PLAY
: TAPE PLAY
: REC
• R-ch is omitted due to same as L-ch.
: TUNER
J105
AUDIO IN
: AUX IN
J102
PHONES
SPEAKER
+
–
–
+
R
LJ101
BIAS OSC
L501 OSC
Q507
HR501
(REC/PB)
TAPE
MECHANISM
DECK
L-CH
SW501-1
SW501
(REC/PB)
PB
r
REC
R-CH
R-CH
POWER
AMP
IC301
4
P27
IC0
9
SYSTEM CONTROLLER
IC701 (3/3)
+
(AC IN)
F001
F002
POWER
TRANSFORMER
PT005
SYS +3.3V
D702
D191, 192
D112, 114
D372
AMP B+
+4V
REGULATOR
Q701 – 703
RECT
D107 – 110
B+ SWITCH
Q351, 352
AC DETECT
Q371, 372
AC DETECT
Q121, 122
VOLTAGE
DETECT
Q705, 706
+1.8V
REGULATOR
IC202
CD +1.8V
RECT
D111, 113
VSTBY
+9V
REGULATOR
Q101 – 103
VM +9V
+3.3V
REGULATOR
Q192
+3.3V
REGULATOR
Q191
CD D +3.3V
CD A +3.3V
VM +7V
+5V
REGULATOR
Q802
TUNER +5V
+3.1V
REGULATOR
Q801
TUNER +3.1V
AC DETECT
Q193
1P24
42AN6
36AN0
54RSTX
REMOTE CONTROL
RECEIVER
IC703
LED DRIVE
Q707
LED701
(LCD BACK LIGHT)
LED0
17
SC1
46
LED702
X701
32.768kHz
14 13
X1A
X0A
92 93
X702
4.19MHz
X1
X0
LCD702
LIQUID
CRYSTAL
DISPLAY
48 SI2
28 PPG1
ROTARY
ENCODER
SW700
VOLUME
STANDBY
SW701 – 705,
SW711 – 716
(FRONT PANEL KEYS)
SW750
(CD LID OPEN/CLOSE DETECT)
AN1, AN2, AN5
37, 38, 41
COM0 – COM1
59 – 62
SEG0 – SEG31
63, 64, 67 – 89, 94 – 100
RESET
SWITCH
Q704
C
AMP-STBY
B
SW501-2
40
AN4
DC
DETECT
Q123
(Singapore)
(EXCEPT Singapore)
VOLTAGE
SELECTOR
S901
(Singapore)
(EXCEPT Singapore)
(Page 14)
(Page 15) (Page 14)
Ver. 1.3

HCD-EH10
1717
HCD-EH10
•Note for Printed Wiring Boards and Schematic Diagrams
•Indication of transistor
C
BThese are omitted. E
Q
Note on PrintedWiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•f: internal component.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthepattern facesideseenfrom
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
B
These are omitted.
CE
Q
•Waveforms
– CD Board – – MAIN Board – – PANEL Board –
3IC201 u; (RFACO)
(CD PLAY mode)
200 mV/DIV, 500 ns/DIV
0.5 to 1.3 Vp-p
22.8 µ s3.3 Vp-p
1IC201 1(LRCK)
(CD PLAY mode)
1 V/DIV, 10 µ s/DIV
2IC201 5(BCK)
(CD PLAY mode)
1 V/DIV, 200 ns/DIV
472 ns 3.3 Vp-p
4IC201 <z/, (XTAO)
(CD PLAY mode)
1 V/DIV, 20 ns/DIV
59.4 ns 2.3 Vp-p
qa IC801 w; (XOUT)
(tuner mode)
500 mV/DIV, 5 µ s/DIV
13.3 µ s1.6 Vp-p
qs IC861 qf (XOUT)
(FM mode)
1 V/DIV, 100 ns/DIV
230 ns 4 Vp-p
ws IC701 os (X1)
1 V/DIV, 100 ns/DIV
239 ns 3.1Vp-p
wa IC701 qf (X1A)
1 V/DIV, 10 µ s/DIV
30.6 µ s3.2 Vp-p
Ver. 1.4
Note on Schematic Diagram:
•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 Ωand 1/4W or less unless otherwise
specified.
•f: internal component.
•C: panel designation.
•A: B+ Line.
•B: B– Line.
•H: Adjustment for repair.
•Voltages and waveforms are dc with respect to ground
under no-signal conditions.
– CD Board –
no mark : CD PLAY
– Other Section –
no mark : FM
[]:AM
():CD PLAY
〈〈 〉〉 : TAPE PLAY
{ }:REC
•Voltages aretakenwith aVOM(Input impedance 10MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F: FM
f: AM
J: CD PLAY
E: TAPE PLAY
j: REC
i: AUX IN
•Abbreviation
AUS:Australian model
CND : Canadian model
EE :East Europeanmodel
KR : Korean model
RU : Russian model
SP : Singapore model
TW :Taiwan model
Note:
The components identi-
fied by mark 0or dotted
linewith mark0are criti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposants identifiéspar
une marque 0sont critiques
pour la sécurité.
Neles remplacer quepar une
pièce portant le numéro
spécifié.
MAIN board
PT-AC board
AC-SW board
PANEL board
CD boar
d
•Circuit Boards Location

HCD-EH10
1818
HCD-EH10
7-4. PRINTED WIRING BOARD – CD Board –
R256
C257
R260
C206
C205
C322
R323
R322
R321
R324
C223
C321
C268
C267
R271
R203
C226
R201
C227
C110
C108
C102
C203
C204
C101
IC202
C274
C202
R207
C215
R202
C201
R423
R421
C424
C276
C210
Q321
C207
C266
X201 C275
C323
C277
C406
R401
C401
C219
R276
C271
C272
C104
C105
C107
C109
C232
C220
M401
(SPINDLE)
M402
(SLED)
S201
R257
C258
C260
C261
R258
C304
C208
R101
R265
R266
R267
C264
C265
R278
C111
C214
R270
C221
C292
C291
R292
R291
IC201
C217 C218
C224
R451
R102
R103
R104 R105
R107
R108
R109
R110
R111
C451
IC402
C256
C251
C252
C254
C253
R254
R255
R252
R253
CN301
C213
C222
C405
R113
C404
R452
C112
R275
R277
C103
R112
C301
C303
C273
R268
C113
CN102
C230
R250
R280
3
1
2
E
CD BOARD
(COMPONENT SIDE)
1-868-067-
11
(11)
CD BOARD
(CONDUCTOR SIDE)
1-868-067-
11
(11)
M
M
(LIMIT)
17 814
28 22 21 15
130
9061
60
31
91
120
A
MAIN
BOARD
CNS104
C
MAIN
BOARD
PIN101
OPTICAL PICK-UP BLOCK
(KSM-213CDP)
A
B
C
D
E
F
1 2 3 4 5 6 7 8 9 10
TP
(RFACI)
TP
(VC)
(AEP, UK, EE, RU, KR)
(Page 20)
(Page 20)
Ver. 1.4
: Uses unleaded solder.•See page 17 for Circuit Boards Location.

HCD-EH10
1919
HCD-EH10
7-5. SCHEMATIC DIAGRAM – CD Board – •See page 17 for Waveforms. •See page 26 for IC Block Diagrams. •See page 31 for IC Pin Function Description.
C208
C205
R324
R101
R292
C110
R451
R102
R103
R104
R105
R107
R108
R109
R110
R111
R255
R253
C406
C301
R254
R252
R250
R268
R322
R321
C264
CN301
C222
C213
R291
C201
C219
R112
R113
C203
C108
C102
C101
C103
C105
C111
C104
C109
C107
C113
C112
R275
R277
R276 C271
C221
C273
C261
C260
R265
R266
R267
R258
C258
R260
C256
C207
C254
C253
C252
C251
C232
C206
C224
R278
C272
C204
C218
C291
C292
C217
C202
R401
C303
C322
C321
R323
R452
R421
C404
R207 C226
C265
C210
R256
C257
C323
Q321
C424
R423
C405
M402
M401
IC402
S201
TP
C230
TP
C220
C451
TP2
TP1
TP4
TP3
C274
R257
C304
IC201
R280
C401
C227
R202
C268 C215
C276
C277
IC202
R201
CN102
C266C267
R203
C275
C214
X201
R270
R271
C223
0.1
0.1
100k
100
100
220p
22k
100
100
100
100
100
100
100
100
100
1k
1k
0.1
0.1
10k
10k
1M
10k
2.2
2.2
1000p
16P
0.1
0.1
100
100
10V
0.1
100
100
100
10V
220p
22p
22p
22p
22p
220p
220p
220p
220p
22p
22p
100
100
47k 0.1
0.1
470p
0.01
0.47
4.7k
1k
4.7k
220k
220p
0
0.1
100 10V
4700p
470p
4700p
470p
0.1
0.1
0.1
100
0.1
0.1
0.1
470p
470p
0.1
0.1
0
10
1
1000p
0
10k
0
0.1
01
0.1
0.1
22k
0.1
100
10V
2SA2119K
0.1
10k
0.1
BA5947FM
100p
0.1
0.047
0.1
100k
1
CXD3014A-201R
0
220
10V
1
0
10p 0.1
1
1
BD18KA5FP
0
23P
10p5p
5p
0.1
16.9344MHz
1k
1M
0.1
FRDR
FFDR
TRDR
TFDR
FRDR
FFDR
TRDR
TFDR
SP-
SP+
SL-
SL+
SP+
SP-
SL+
SL-
OPIN-
OPIN+
CH1FIN
CH1RIN
CH2FIN
CH2RIN
GND
CNF4
POWVCC
CH2OUTR
CH2OUTF
CH1OUTR
CH1PUTF
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OPOUT
PREVCC
VREF GAIN-SW
MIRR
DFCT
FOK
VSS
LOCK
MDP
SSTP
IOVSS1
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
IOVDD1
AVDD0
AVSS0
E
F
TEI
TEO
FEI
FEO
VC
A
B
C
D
AVDD4
RFDCO
PDSENS
AC_SUM
EG_IN
LD
PD
RFC
AVSS4
RFACO
RFACI
AVDD3
BIAS
ASYI
ASYO
VPCO
VCTL
AVSS3
CLTV
FILO
FILI
PCO
BCKI
LRCKI
LRCK
VSS
PCMD
BCK
VDD
IOVDD2
DOUT
TEST
IOVSS2
XVSS
XTAO
XTAI
XVDD
AVDD1
AOUT1
VREFL
AVSS1
AVSS2
VREFR
AOUT2
AVDD2
IOVDD0
IOVSS0
XTACN
XRST
VSS
VDD
SENS
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
VDD
COUT
PCMDI
CLOK
SVSS
SVDD
SVSS
SVDD
VSS
SVDD
VDD
VSS
TEST1
SVSS
SVSS
SVDD
JTAGTCK
JTAGTDI
JTAGTDO
JTAGTMS
TRST
VDD
TES1
PLLVDD
PLLVSS
ACK-MP3
REQ-MP3
IREQ-MP3
SSTB-MP3
231
XLAT-MP3
XLAT
CLK2
DATA
DATA2
T+
VC
GND
LD
PD
F+
T-
F-
VCC
SCOR
SENS
CLK
XRST
D-OUT
DVDD(3.3V)
AVDD(3.3V)
E
D
A
B
C
F
VR
IREQ-MP3
REQ-MP3
ACK-MP3
XLAT-MP3
XLAT
DATA
DATA-MP3
CLK-MP3
IN
GND
OUT
(LIMIT)
AUTOMATIC
POWER
CONTROL
CD DSP
FOCUS/TRUCKING
COIL DRIVER,
SLED/SPINDLE
MOTOR DRIVER
OPTICAL
PICK-UP
BLOCK
(SPINDLE)
(SLED)
(VC)
(RFACI)
+1.8V REGULATOR
M-MUTE
D-GND
L-CH
A-GND
R-CH
M-GND
M+7V
XTCN
(KSM-213DCP)
(AEP,UK,EE,RU, KR)
(Page
21)
(Page 21)
Ver. 1.4

HCD-EH10
2020
HCD-EH10
7-6. PRINTED WIRING BOARDS – MAIN Section –
JW807
JW808
JW809
JW811
JW812
JW814
JW815
JW816
JW817
JW818
JW822
JW824
JW829
JW823
JW825
JW813
HT101
JW832
JW834
JW835
JW108
JW109
JW110
JW113
JW116
JW118
JW119
JW120
JW124
JW125
JW126
JW127
JW128
JW130
JW135
JW136
JW139
JW147
JW403
JW410
JW412
JW142 JW150
JW151
JW104
JW103
JW101
JW105
JW155
JW102
JW840 JW123
JW112
JW111
JW115
JW114
JW122
JW121
JW836
JW137
JW131
JW408
JW134
JW411
JW415
JW414
JW401
JW407
JW406
JW402
JW129
JW148
JW405
JW404
JW106
JW154
JW153
JW138
JW830
JW143
JW158
JW159
JW160
JW161
JW416
JW417
JW162
JW165
JW810
JW833
JW140
JW163
JW164
JW819
JW144
JW156
JW146
JW157
JW821
JW117
JW409
JW132
JW133
JW418
JW831
JW141
JW145
JW413
JW149
JW167
JW168
PIN101
X801
L851
Q101
SW501
C308
C307
JW805
C304
C303
Q191
CNS112
C191
JW803
C865
C841
X861
C863
C101
C801
C834
L805
L804
L806
C401
C510
L852
BPF801
C813
CNP802
CNS104
CNP501
CNP502
C413
C402
C412
C405
J105
C509
L501
IC301
J102
C567
JW166
JW182
J101
D107
D108
D109 D110
C118
JW181
C112
CF803
L803
Q192
C122
CN102
JW152
JW107
R199
R198
R197
R187
R186
R185
R118
R116
R117
R115
D192
D191
D113
D111
PIN102
JW804 JW802
JW806
C805
R184
JR404
JR403
R843
JR401
JR402
JR861
R188
C382
C381
R384
R383
D371
D372
Q372
Q371
R381
R382
R375
R374
R376
R377
R378
R379
R380
R371
R372
R355
R356
Q351
C543
C115
R824
JR802
R176
R861
Q861
R189
C864
R869
R870
R871
C306
JR801
Q121
C155
R847
R810
R814
C873
C194
R121
R181
C421
R365
C182
C184
C181
C183
R123
C371
R823
C866
C807
C840
R406
Q862
C814
R840
JR803
R541
R536
C403
R144
R140
R137
R147
C544
R182
R135
R191
R196
D193
R195
C192
C193
R139
R149
C409
R522
R425 R424
C142
C141
R120
R119
L103
R873
R430
R531
R429
R440
R442
C433
C437
C434
C438
C565
IC401
L104
R866
R868
C862
R862
R865
R864
C867
C861
R839
R812
R419
R811
R441
R439
R420
R405
Q803
C838
R830
R829
R403
R404
R410
R411
R842
R412
C515
R402
R427
R856
R827
R428
R846
C415
C416
R848
C528
R834
IC801
C527
R857
C523
R533
C526
R835
C816
R433
R192
R813
C817
R863
C822
C821
R816
R833
C305
C868
C869
R859
R434
R828
R860
R836
C804
R528
R532
R804
C508
C111
R523
R805
C806
C803
R817
R530
C505
R152
R803
R502
R175
C809
R527
R808
C506
C507
C819 R807
C529
R806
C855
R529
C504
C503
C856
R518
C854
R831
R853 R851
C851 R151
C853
C852
R517
D851
R867
R872
C522
R516
R515
R514
R513
R534
R524
R521
R525
R526
C836
C810
C811
R821
R512
C827
C826
R820
R819
R837 C835
C828
Q801
R838
R809
R825
R826
Q802
C825
C824
C823
C839
R845
R844
R841
C847
C830
C848
C829
Q193
R822
C833
C832 C831
C812
R802
R818
R801
C802
C815
R815
C301
C315 C302
R339
R304
R308
R301
R303
R305
R340
R306
R511
C524
R510
R509
R508
R507
C432
R506
R505
R423
C525
R426
C410
C501
R543
R565
R535
R544
R112
C431
R504
R503
R501
R193
C561
Q507
C564
R545
R110
C562
R564
C404
C196
R561
C407
C408
C406
C512
C511
C502
C514
C513
R520
R519
JR106
R560
R874
R849
R875
R130
D812
C156
R542
IC861
Q122
Q102
Q103
D106
C109
C110
R101
R102
R103
R104
R105
R106
R107
R109
C114
R108
R124
R125
C121
C818
R128
R129
R126
R127
R111
D131
R145
R148
R134
R138
R136
R146
D803
D802
R150
D813
C800
C105
Q123
C518
C519
R373
Q352
R351
R352
R353
R876
C820
D815
R850
R354
C531
C532
CF801
CF802
F001
W008
T001 T002
W002
JW002
E
E
E
EE
E
E
BC E
E
E
E
E
E
E
E
E
1
8
16
9
1
14
28
15
S
G
D
E
MAIN BOARD
1-868-227-
11, 12
(11, 12)
K
A/K
A
K
A/K
A
ANTENNA
FM/AM
E
K
A
A
K
A
A
A/K
K
A
K
AA
(VT)
(GND)
(TUNER OUT R-ch)
(TUNER OUT L-ch)
(GND)
L
R
SPEAKER
+
–
+
–
K
K
A
K
AA
K
AA
1
3
1
4
(REC/PB)
REC
PB
1
2
S501
A
CD BOARD
CN102
B
PANEL BOARD
CNS701
1
2
23
22
12
2726
1
3
AUDIO IN
CF801 – 803
(L-CH)
(R-CH)
TAPE
MECHANISM
DECK
HRP501
(REC/PB)
1-868-228-
11, 12
(11, 12)
PT-AC BOARD
1
3
(CHASSIS)
(AC IN)
NOT REPLACEABLE:
BUILT IN TRANSFORMER
∗
∗
PT005
POWER
TRANSFORMER
A
B
C
D
E
F
G
H
I
J
1 2 3 4 5 6 7 8 9 10 11
PHONES
13
C311 C309
R307
C534
C312
C310
R302
C535
C533
R519
C
CD
BOARD
D
PANEL
BOARD
•Semiconductor
Location
Ref. No. Location
D106 I-3
D107 H-3
D108 H-3
D109 H-4
D110 H-4
D111 H-3
D113 H-3
D131 G-4
D191 B-8
D192 B-8
D193 C-9
D371 I-5
D372 H-5
D802 C-4
D803 D-4
D812 C-2
D813 C-2
D815 E-5
D851 D-4
IC301 J-5
IC401 F-6
IC801 D-3
IC861 B-5
Q101 J-3
Q102 I-3
Q103 I-3
Q121 H-4
Q122 H-4
Q123 F-3
Q191 B-8
Q192 B-8
Q193 B-9
Q351 J-4
Q352 I-4
Q371 I-5
Q372 I-4
Q507 I-6
Q801 E-2
Q802 E-2
Q803 C-2
Q861 B-6
Q862 B-6
(Page 18) (Page 24)
(Page 18)
(Page 24)
Ver. 1.4
Refer to SUPPLEMENT-1 for the MAIN section of printed
wiring boards and schematic diagrams of US, Canadian,
Singapore, Taiwan, Korean andAustralian models.
When repairing the set ofAEP, UK, East European and Russian,
refer to either of original service manual/SUPPLEMENT-1
according to the set.
: Uses unleaded solder.•See page 17 for Circuit Boards Location.