Sony HCD-RG11 Service Manual

HCD-RG11

SERVICE MANUAL

Ver 1.0 2002.06

• HCD-RG11 is the tuner, deck, CD and
amplifier section in MHC-RG11.

CD
Section

Tape deck Model Name Using Similar Mechanism HCD-RG20
Section T ape Transport Mechanism T ype CWL44FF29

AEP Model

UK Model

Model Name Using Similar Mechanism HCD-RG20
CD Mechanism Type CDM58F-K6
Optical Pick-up Name

KSM-213DCP/Z-NP

SPECIFICATIONS

Amplifier section

DIN power output (rated) 40 + 40 watts
Continuous RMS power output (reference)

Music power output (reference)

Inputs
GAME (AUDIO) IN (phono jack):

Outputs
PHONES (stereo mini jack):

Front speaker: accepts impedance of 6 to

CD player section

System Compact disc and digital
Laser Semiconductor laser

Frequency response 2 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB

Tape deck section

Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),

(6 ohms at 1 kHz, DIN)
50 + 50 watts (6 ohms at 1

kHz, 10% THD)
95 + 95 watts (6 ohms

at 1 kHz, 10% THD)

voltage 450 mV,
impedance 47 kilohms

accepts headphones of
8 ohms or more

16 ohms

audio system
(λ=780 nm)

Emission duration:
continuous

using Sony TYPE I
cassette

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 – 108.0 MHz
Antenna FM lead antenna
Antenna terminals 75 ohm unbalanced
Intermediate frequency 10.7 MHz

AM tuner section

Tuning range 531 – 1,602 kHz (with the
Antenna AM loop antenna

Antenna terminals External antenna terminal
Intermediate frequency 450 kHz

General

Power requirements 230 V AC, 50/60 Hz
Power consumption 85 watts

Dimensions (w/h/d)
Mass Approx. 8.1 kg

Design and specifications are subject to change
without notice.

interval set at 9 kHz)

1.0 watts (at the Power
Saving Mode)
Approx. 280 × 325 × 421 mm

9-874-039-01

2002F1600-1
© 2002.06

MINI Hi-Fi COMPONENT SYSTEM

Sony Corporation

Home Audio Company
Published by Sony Engineering Corporation

HCD-RG11

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.

TABLE OF CONTENTS

1. GENERAL ·········································································· 3

2. DISASSEMBLY ································································ 5

2-1. Case (Top) ·····································································5
2-2. CD Door ········································································ 6
2-3. Front Panel Section and

CD Mechanism Deck (CDM58F-K6) Section ·············· 6
2-4. Tape Mechanism Deck And PANEL Board ·················· 7
2-5. SUB TRANS Board, VIDEO OUT Board and

TRANS Board ······························································· 7
2-6. MAIN Board and POWER Board ································· 8
2-7. Base Unit ·······································································8
2-8. CD Board, DRIVER Board, MOTOR Board and

ADDRESS SENSOR Board··········································9

3. TEST MODE ···································································· 10

4. ELECTRICAL ADJUSTMENTS ······························· 12

5. DIAGRAMS······································································ 14

5-1. Circuit Board Location ················································ 14
5-2. Block Diagrams ··························································· 15
5-3. Printed Wiring Board – CD Section – ························ 17
5-4. Schematic Diagram – CD Section – ··························· 18
5-5. Printed Wiring Board – MAIN Board – ····················· 19
5-6. Schematic Diagram – MAIN Board (1/4) – ··············· 20
5-7. Schematic Diagram – MAIN Board (2/4) – ··············· 21
5-8. Schematic Diagram – MAIN Board (3/4) – ··············· 22
5-9. Schematic Diagram – MAIN Board (4/4) – ··············· 23
5-10.Printed Wiring Board

– Address Sensor, Driver Motor Section – ·················· 24
5-11.Printed Wiring Board – Panel Section – ····················· 25
5-12.Schematic Diagram – Panel Section – ······················· 26
5-13.Printed Wiring Board – POWER Board – ·················· 27
5-14.Printed Wiring Board – Trans Section –····················· 28
5-15.Schematic Diagram – Trans Section – ······················· 29
5-16.IC Block Diagrams ······················································ 30
5-17.IC Pin Function Description········································ 32

6. EXPLODED VIEWS ······················································ 34

6-1. MAIN SECTION ························································ 34
6-2. FRONT PANEL SECTION········································· 35
6-3. MAIN BOARD SECTION·········································· 36
6-4. CD MECHANISM DECK SECTION ························ 37

7. ELECTRICAL PARTS LIST ······································· 38

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.

2

Main unit

SECTION 1

GENERAL

HCD-RG11

This section is extracted
from instruction manual.

12

wk
wj
wh
wg

wf
wd

ws

AUDIO jacks wd (19)
CD wk (10 – 12, 15)
CD SYNC qh (15)
Deck A ws (14)
Deck B qs (14 – 16)
DISC 1 – 3 4 (10, 11)
DISC SKIP EX-CHANGE 3

(10, 11)
Disc tray 5 (10)
DISPLAY w; (12)
EFFECT ON/OFF qd

(17)
GAME wg (18 – 20)

3456 7

qdqfqgqhqjqkqlw;wa

GAME EQ ql (17, 18, 20)
GROOVE 8 (17)
MOVIE EQ 7 (17)
MUSIC EQ 2 (17)
PHONES jack q;
REC PAUSE/START qg (15)
TAPE A/B wh (14, 15)
TUNER/BAND wj (12, 13, 15)
VIDEO jack wf (19, 20)
VOLUME control 9

BUTTON DESCRIPTIONS

?/1 (power) 1
Z OPEN/CLOSE 6
Z (deck B) qa
M (fast forward) qf
. (go back) qj
> (go forward) qj
X (pause) qj
H (play) qj
x (stop) qj
m (rewind) qk
Z (deck A) wa

8

9

q;

qa
qs

3

HCD-RG11

Remote Control

wa
w;

ql
qk
qj
qh

qg

12 3 4

5
6

7
8

9
0
qa
qs

qd

CD ql (10 – 12, 15)
CLEAR w; (11)
CLOCK/TIMER SELECT 2

(16, 19)

CLOCK/TIMER SET 3 (9, 16,

18)
DISPLAY 6 (12)
D.SKIP 7 (10)
ENTER qg (9, 11 – 13, 16, 18,

19)
EQ +/– qf (17)
GAME q; (18 – 20)
GROOVE qd (17)

ON/OFF qh (17)
PLAY MODE wa (10, 11)
PRESET +/– 5 (13)
REPEAT 8 (11)
SLEEP 1 (18)
STEREO/MONO 8 (13)
SURROUND qa (17)
TAPE A/B 9 (14, 15)
TUNER MEMORY qj (12, 13)
TUNER/BAND qk (12, 13)
TUNING +/– 5 (12, 13)
VOL +/– qs

Setting the time

1

Press ?/1 to turn on the system.

2

Press CLOCK/TIMER SET on the
remote.

Proceed to step 5 when “CLOCK” appears
in the display.

3

Press . or > repeatedly to select
“SET CLOCK”.

4

Press ENTER on the remote.

5

Press . or > repeatedly to set the
hour.

qf

BUTTON DESCRIPTIONS

?/1 (power) 4
M (fast forward) 5
. (go back) 5
> (go forward) 5
X (pause) 5
N (play) 5
m (rewind) 5
x (stop) 5

6

Press ENTER on the remote.

The minute indication flashes.

7

Press . or > repeatedly to set the
minute.

8

Press ENTER on the remote.

Tip

If you made a mistake or want to change the time,
start over from step 2.

Note

The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.

4

Note : Disassemble the unit in the order as shown below.

SET

CASE (TOP)

CD DOOR

HCD-RG11

SECTION 2

DISASSEMBLY

FRONT PANEL SECTION AND CD MECHANISM
DECK (CDM58F-K6) SECTION

BASE UNIT

PANEL BOARD

TAPE MECHANISM DECK AND PANEL BOARD

CD BOARD

SUB TRANS BOARD, VIDEO OUT BOARD AND TRANS BOARD

MAIN BOARD AND POWER BOARD

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

2-1. Case (Top)

q;

case (Top)

5

two screws (Case 3 TP2)

qa

CD BOARD, DRIVER BOARD, MOTOR BOARD AND
ADDRESS SENSOR BOARD

9

four screws (+BVTP 3

×

6)

6

screw (Case 3 TP2)

case (Side-L)

7

two screws

(+BVTP 3

8

×

10)

q;

case (Side-R)

4

3

(+BVTP 3

1

two screws (Case 3 TP2)

2

screw (Case 3 TP2)

two

screws

×

10)

5

HCD-RG11

2-2. CD Door

CD mechanism deck (CDM58F-K6)

1

pulley

Turn the pulley to the direction of arrow.

Front panel side

2

Pull-out the disc tray.

CD door

3

2-3. Front Panel Section and CD Mechanism Deck (CDM58F-K6) Section

CD mechanism deck
(CDM58F-K6)

2

flat type wire (19 core)

4

screw (+BVTP 3

qd

×

10)

7

connector (CN202)

9

(+BVTP 3

screw

qs

5

×

6

10)

3

(+BVTP 3

q;

(CN605)

1

connector

(CN704)

connector (CN201)

screw

×

10)

connector

8

connector (CN203)

front panel section

qa

three screws (+BVTP 3

× 10

)

6

2-4. Tape Mechanism Deck And PANEL Board

qa

PANEL board

1

flat type wire (17 core)

2

six screws

(+BVTP 2.6

×

8)

8

six screws

(+BVTP 2.6

4

belt (BF)

×

8)

9

five screws

(+BVTP 2.6

q;

eight screws

(+BVTP 2.6

5

HCD-RG11

×

8)

×

belt (AF)

8)

7

volume knob

3

tape mechanism deck

2-5. SUB TRANS Board, VIDEO OUT Board and TRANS Board

7

qg

four screws

(+BVTT 4

TRANS board

×

cover (duct)

6)

qa

VIDEO OUT board

1

connector (CN901)

2

connector (CN2)

6

6

belt (FR)

q;

screw

(+BVTP 3

5

two screws

(+BVTP 3

qs

five screws

(+BVTP 3

×

10)

×

×

10)

10)

qf

connector (CN915)

qh

power

transformer (T911)

4

connector (CN504)

3

connector

(CN903)

9

SUB TRANS

board

8

two screws

(+BVTP 3

×

10)

qd

back panel

7

HCD-RG11

s

2-6. MAIN Board and POWER Board

6

three screws (+BVTP 3

×

9

8)

heat sink

8

two screws (+BVTP 3

MAIN board

× 8)

7

POWER

5

two screws (+BVTP 3

2-7. Base Unit

4

Turn the pulley to the direction of arrow.

board

×

16)

1

pulley (B), chucking

2

3

4

MAIN board

1

two screws (+BVTP 3

×

10)

pulley

5

flat type wire (16 core)

qf

spring (insulator),

coil

qd

two insulators

2

7

holder (BU) assy

Base unit

two

screws (+PTPWH M2.6)

3

lever (lifter)

qs

6

screw

(+PTPWH M2.6)

qf

two spring (insulator), coil

qd

two insulators

qa

screw (DIA. 12)

9

two stoppers (BU)

spring
(insulator),
coil

8

two screws (+BVTP 2.6

q;

two

screws

(+PTPWH M2.6)

×

8)

8

2-8. CD Board, DRIVER Board, MOTOR Board and ADDRESS SENSOR Board

q;

qa

tray

3

flat type wire

(8 core)

2

DRIVER board

screw (+PTPWH 2.6

qs

screw (+BVTP 2.6

8

×

8)

MOTOR board

×

8)

4

two screws (+BVTP 2.6

6

flat type wire (8 core)

5

Remove two solderings of turn motor (M721).

7

connector

qd

ADDRESS SENSOR board

×

HCD-RG11

8)

1

screw (+BVTP 2.6

9

Pull-out the Table.

×

8)

qf

flat type wire (16 core)

qh

CD board

qg

four

screws

(+BVTP 2.6

×

8)

9

HCD-RG11

SECTION 3

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 three buttons x , DISPLAY , and ?/1 simultaneously.

2. The fluorescent indicator tube displays “COLD RESET” and

the set is reset.

[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 is displayed 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 three discs in tray. Select ALL DISCS, and REPEAT OFF.

2) Load the tapes recording use into both decks.

3) Press three buttons x , DISPLAY , and

DISC SKIP EX-CHANGE simultaneously.

4) Aging operations of CD and tape are started at the same time.

5) To exit the aging mode, perform [Cold Reset].

3. Aging mode in Tape Deck section

1) Operation during aging mode

• In the agining mode, the program is excuted in the following
sequence.

Step

1

Rewind the TAPE A

2

Rewind the TAPE B

3

Play the TAPE A (1 minute)

4

Stop the TAPE A (1 second)

5

Play the TAPE A (3 minutes)

6

Rewind(AMS) the TAPE A

7

F.F.(AMS) the TAPE A

8

Play the TAPE B (1 minute)

9

Stop the TAPE B (1 second)

10

Record the TAPE B (3 minutes)

11

Rewind(AMS) the TAPE B

12

F.F.(AMS) the TAPE B

Operation

Display

TAPE AAG-1
TAPE BAG-2
TAPE AAG-2
TAPE AAG-3
TAPE AAG-4
TAPE AAG-5
TAPE AAG-6
TAPE BAG-2
TAPE BAG-3
TAPE BAG-4
TAPE BAG-5
TAPE BAG-6

2) Error display

• If error occurred, the display remains like “TAPE BAG-2”.

4. Exiting from the aging mode

• Be sure to perform Cold Reset to exit from the aging mode.

2. Aging mode in CD section

1) Operation during aging mode

• In the agining mode ,the program is excuted in the following
sequence.

(1) The disc tray opens and closes.
(2) The disc tray turns to select a disc 3.
(3) The pickup accesses to the first track, and plays 3 seconds.
(4) The pickup accesses to the last track, and plays 3 seconds.
(5) The disc tray opens and closes.
(6) The disc tray turns to select a disc 1.
(7) The same operation starts like step (3).
(8) After a disc 1 aging operation, a disc 2 is selected.
(9) When an aging operation of a disc 3 is completed, the display

“AGING

∗∗∗∗” value increases.

(10) If no error occurs, the aging operation continues repeatedly.

2) Error display

Disc error

Display Error

E00D01022 Focus error (No disc)
E00D02022 Sub Q error (Focus is good)
E00D02023 TOC reading error
E00D02014 Access error (Unable within regular time)

Mechanism error

Display Error

E00M__E_0 Error during opening tray
E00M__C_2 EX-CHANGE disc error
E00M__D_0 Error during closing tray
E00M__F_3 EX-OPEN error
E00M__D_5 EX-CLOSE error
E00M__C_2 Chuck-up error
E00M__C_3 Unchucking error

10

HCD-RG11

[FL T ube Test Mode]

• All fluorecent segments and LEDs are tested.

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.

3. Press DISPLAY and DISC SKIP/EX-CHANGE buttons
simultaneously.

4. All segments and LEDs (without STANDBY LED) are turned
on.

5. To exit from this mode, press ?/1 button to turn the set OFF.

[Version and Destination Display Mode]

•The version or destination is displayed.

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.

3. Press DISPLAY and DISC 1 buttons simultaneously.

4. The version is displayed.

5. Press DISPLAY and DISC 2 buttons simultaneously.

6. The destination is displayed.

7. To exit from this mode, press ?/1 button to turn the set OFF.

[Key Check Mode]

•Keyboard check.

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY
and GROOVE simultaneously.

3. Press DISPLA Y and DISC 3 b uttons simultaneously, and the
key check mode is activated.

4. In the key check mode, the fluorecent indicator displays “KEY
0 VOL 0”. Each time a button is pressed, “KEY 0” value
increases. However, once a button is pressed, it is no longer
taken into account.
“VOL 0” value increases like 1, 2, 3 ... if rotating VOLUME
knob clockwise, or it decreases like 0, 9, 8, ... if rotating counter­clockwise.

5. To exit from this mode, press ?/1 button to turn the set OFF.

[VACS ON/OFF Mode]

•This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY

and GROOVE simultaneously.

3. Press CD SYNC button while pressing DISPLAY button.

The message “VACS OFF” or “VACS ON” appears.

4. To exit from this mode, press ?/1 button to turn the set OFF.

[Equalizer Test Mode]

•This mode is used to test the function of the equalizer.

Procedure:

1. Press ?/1 button to turn the set ON.

2. To enter the test mode, press the three buttons x , DISPLAY

and GROOVE simultaneously.

3. Press m button while pressing DISPLA Y button. The message

–

“BASS + 0” is displayed.

4. The value increases like + 2, + 4 ... if pressing > button

while DISPLA Y b utton is still depressed, or it decreases like ­2, - 4 ... if pressing . button.

5. Press M button while pressing DISPLA Y button. The message

+

“TRE + 0” is displayed.

6. The value increases like + 2, + 4 ... if pressing > button

while DISPLAY button is still depressed, or it decreases like

- 2, - 4 ... if pressing . button.

7. To exit from this mode, press ?/1 button to turn the set OFF.

[CD Ship Mode (No Memory Clear) ]

•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 CD button and ?/1 button simultaneously.

3. The "STANDBY" display blinks instantaneously, and the CD

ship mode is set.

[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. To enter the test mode , press three buttons x , DISPLA Y , and

GROOVE simultaneously.

4. Press DISPLA Y and OPEN/CLOSE b uttons simultaneously.

5. The CD service mode is selected.

M

6. With the CD in stop status, press

to outside track, or press m button to inside track.

7. To exit from this mode, perform as follows:

–

button to move the pickup

+

1) Move the pickup to the most inside track.

2) Press ?/1 button to turn the set OFF.

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.

11

HCD-RG11

l

r

SECTION 4

ELECTRICAL ADJUSTMENTS

TUNER SECTION

FM Tuned Level Adjustment

FM RF Signal generator

75

Ω

coaxial

set

Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 30 dB (at 75

Ω

open)

Procedure:

1. Supply a 98 MHz signal at 28 dB from the ANTENN A terminal.

2. Tune the set to 98 MHz.

3. Adjust RV101 to the point (moment) when the TUNED
indicator will change from going off to going on.

Adjustment Location: MAIN board

Null Adjustment

FM RF Signal generator

75

Ω

coaxial

Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 60 dB (at 75

Ω

open)

FM ANTENNA terminal
(JK101)

set

FM ANTENNA terminal
(JK101)

AM IF Adjustment

AM RF Signal generator

set

30% amplitude
modulation by
400Hz signal
output level : as low as possible

16 Ω

set

headphones jack (JK601)

AM ANTENNA termina
(JK101)

level mete

Procedure:

1. Set the frequency of the AM RF signal generator to 1000 kHz
(at 10 kHz step) or 999 kHz (at 9 kHz step).

2. Tune the set to AM 1000 kHz (at 10 kHz step) or 999 kHz (at 9
kHz step).

3. Adjust IFT101 so that the reading on level meter becomes in
maximum.

Procedure:

1. Supply a 98 MHz signal at 60 dB from the ANTENN A terminal.

2. Tune the set to 98 MHz.

3. Measure voltage between pin 21 and pin 23 of IC 101. Adjust
T101 until the voltage becomes 0 V.

Adjustment Location: MAIN board

[MAIN BOARD] Component side

T101:NULL

T101

RV101

IFT101 : AM IF

RV101:FM TUNED LEVEL

12

CD SECTION

p

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.

RF Level Check

oscilloscope

CD board

IC751 pin q;

GND

Procedure :

1. Connect oscilloscope to pin q; (IC751).

2. Turned Power switch on.

3. Load a disc (YEDS-18) and playback.

4. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.

HCD-RG11

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 : 1.4 to 2.1 Vp-

Adjustment Location: CD board

[CD BOARD] (Component Side)

CN732

CN731

TP connected to pin q; (IC751)
C746A

CN733

13

HCD-RG11

SECTION 5

DIAGRAMS

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

Note on Schematic Diagram:

• 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

•

• C : panel designation.

Note: The components identified by mark 0 or dotted line

• A : B+ Line.

• B : 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.

: 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 produc-

tion tolerances.
no mark : FM
< >: CD
[]: TAPE

Voltage variations may be noted due to normal produc­tion tolerances.

F : FM
E : PB (DECK A)
d : PB (DECK B)
G : REC (DECK B)
J : CD

4

W or less unless otherwise

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• b : Pattern from the side which enables seeing.

• Indication of transistor.

C

These are omitted.

Q

B

CE

These are omitted.

Q

B

E

5-1. Circuit Board Location

DRIVER board

TRANS board

PANEL board

MOTOR board

ADDRESS SENSOR board

VIDEO OUT board

SPDL board

CD board

SUB TRANS board

MAIN board

POWER board

14

5-2. Block Diagrams

: FM

: CD

• Signal Path

• R-CH is omitted due to same as L-CH

FM 75Ω

G

AM

JK101

FND1

ANT IN

1

7IF OUT

8OSC OUT

5VT

+B TU+12V

Q102

FM

10

FM OSC

15

VT1 IN

18

VT1

17

PD1

19

PLL

IC102

12

FM/AM IF

7

FM

14

AM OSC

2VCO STOP

8IF REQ

6DO

4DI

5

CL

3

CE

XIN

1

XOUT

24

CX101

4.5MHz

RF IF
AMP

Q101

CF101 CF102

DI

DO

CLK

CE

1

13

3

4

55

122

14

1511

67

9

RB101

19

AM MIX OUT

IF OUT

9

AM/IF

12

AM OSC

24

VCO STOP

13

IF REQ MUTE

8

AM RF IN

20

AM OSC

22

V REG

23

FM IF

1

AM/FM IF MPX

IC101

11

L OUT

10

R OUT

MUTE

Q106

18AM IF IN

IFT101

T101

R-CH

A

MAIN

SECTION

6

TUNED

7

STEREO

3

FM SD ADJ

5

FMDET

RV101

TUNER MUTE OUT

77

LC72131 CE

93

CLK

97

LC72131 DI

96

LC72131 BU2114 DO

95

TU STEREO

9

TUNED

10

MASTER CONTROL

IC601(1/2)

DO

CLK

CE

DI

L-CH

COIN

98

SQCK

100

CD RWC

2

CD DRF

8

CD SL+

5

CD SL-

4

TBL ADDRESS

SENSOR

68

IC711

69

CD PIC UP/DOWN SW

70CD TRAY OPEN SW

71CD TRAY CLOSE SW

73CD MOTOR +

OPEN/CLOSE

S701

BU UP/

DOWN

S711

74

MOTOR

DRIVE

9

7

4

2

M

IC701

TURN

MOTOR

M721

OPTICAL PICK-UP

BLOCK

(KSM-213-DCP/Z-NP)

LD

DRIVER

Q731

+5V

LD

GND

FOCUS

COIL

F+

F

T+

T

TRACKING

COIL

IC781

FCS/TRK COIL
SL/SP MOTOR

DRIVER

ASP

IC731

1

2

27

26

VR

PD

11

12

18

17

3

CH1 INA

7

MUTE

CH1 OUTA

M

M

MOTOR

SLED

MOTOR

SPINDLE

S01

LIMIT

41RF SM

VR

58

VCC

VC

A

B

C

D

E

F

DETECTOR

FIN 1

FIN 2

E

3

F

4

LDD

62

LDS

63

FD

16

TO

15

SLD

29

SPD

27

52

DATA

50CLK

51CL

53CE

34TGL
54

DRF

39

CV-

40

CV+

30

SL-

Q775

31

SL+

35TOFF

44SLI

49

DEF

36

TES

37

HFL

33

JP+

32

JP-

DSP

IC751

EFMI

10

EFMO

9

DEF

1

TES

16

HFL

15

JP+

19

JP-

20

COIN

56

4.2M

61

CQCK

57

RWC

54

TGL

18

TOFF

17

CLV+

12

CLV-

13

45XI

44

XO

X701

16.9344M

37

L CH

40R CH

R CH

B

MAIN

SECTION

CD-L

2

1

38

SLOF

VP

14

MUTE

Q771,773

CH1 OUTB

CH4 OUTA

CH4 OUTB

CH21 OUTB

CH2 OUTA

CH3 OUTB

CH3 OUTA

4

CH1 INB

25

CH4 INA

9

CH2 INB

20

CH3 INB

SHUTER IN/OUT

28

D MUTE

26

LIMIT SW

27

3

PDO

58RESET

D732

35L MUTE

D733

D735

C

MAIN

SECTION

DO,CLK

53

WRQE

55

SQ0UT

CD A MUTE

6

CD WRQ

7

SQOUT

99

CD RESET OUT

3

CD MOTOR-

CD NUMBER SENSOR

NULL

AM IF

FM TUNED

LEVEL

+6.8V

– Tuner/CD Section –

HCD-RG11

1515