Sony HCDGRX-40-AV Service manual

HCD-GRX40AV/RXD6AV

SERVICE MANUAL

HCD-GRX40AV/RXD6A V is the Amplifier ,
CD player, Tape Deck and Tuner section
in MHC-GRX40A V/RXD6AV.

Photo : HCD-RXD6AV

Manufactured under license from Dolby Laboratories
Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks
of Dolby Laboratories Licensing Corporation.

CD CD Mechanism Type CX3
Section Base Unit Name KSM-213ECM

Tape deck Model Name Using Similar Mechanism HCD-RXD3
Section T ape Transport Mechanism Type CWL-44-RR

AEP Model

UK Model

HCD-RXD6AV

E Model

Australian Model

HCD-GRX40AV

Model Name Using Similar Mechanism HCD-RXD3

Optical Pick-up Name KSS-213ECM/C2NP

Amplifier section

MHC-RXD6AV (Eur opean model):
Front Speaker :

DIN power output (rated)50 + 50 W

(6 Ω at 1 kHz, DIN)

Continuous RMS power output (reference)

60 + 60 W
(6 Ω at 1 kHz, 10% THD)

Music power output (reference)

100 + 100 W
(6 Ω at 1 kHz, 10% THD)

Center Surround Speaker :

DIN power output (rated) 25 W

(12 Ω at 1 kHz, DIN)

Continuous RMS power output (reference)

30 W
(12 Ω at 1 kHz, 10% THD)

Music power output (reference)

50 W
(12 Ω at 1 kHz, 10% THD)

Rear Surround Speaker :

DIN power output (rated) 12.5 + 12.5 W

(6 Ω at 1 kHz, DIN)

Continuous RMS power output (reference)

15 + 15 W
(6 Ω at 1 kHz, 10% THD)

Music power output (reference)

25 + 25 W
(6 Ω at 1 kHz, 10% THD)

SPECIFICA TIONS

MHC-GRX40AV (Other model):

The following measured at AC 120, 240 V, 50/60 Hz

Front Speaker :

DIN power output (rated)60 + 60 W

(6 Ω at 1 kHz, DIN)

Continuous RMS power output (reference)

70 + 70 W
(6 Ω at 1 kHz, 10% THD)

Center Surround Speaker :

DIN power output (rated) 25 W

(12 Ω at 1 kHz, DIN)

Continuous RMS power output (reference)

30 W
(12 Ω at 1 kHz, 10% THD)

Rear Surround Speaker :

DIN power output (rated) 12.5 + 12.5 W

(6 Ω at 1 kHz, DIN)

Continuous RMS power output (reference)

15 + 15 W
(6 Ω at 1 kHz, 10% THD)

Inputs
MD/VIDEO IN : voltage 450 mV/250 mV
(phono jacks) inpedance 47 kΩ

MINI Hi-Fi COMPONENT SYSTEM

Outputs
MD/VIDEO OUT : voltage 250 mV
(phono jacks) impedance 1 kΩ

PHONES : accepts headphones of 8 Ω or

(stereo phone jack) more
FRONT SPEAKER : accepts impedance of 6 to 16 Ω
REAR SPEAKER : accepts impedance of 6 to 16 Ω
CENTER SPEAKER : accepts impedance of 12 to 16 Ω
SUPER WOOFER : Voltage 1 V, impedance 1 kΩ

CD player section

System Compact disc and digital audio

system

Laser Semiconductor laser (λ=780nm)

Emission duration: continuous

Laser output Max. 44.6 µW*

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

Continued on next page

MICROFILM

CD DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 600 nm
Output Level –18 dBm

Tape player section

Recording system 4-track 2-channel stereo
Frequency response 60 - 13,000 Hz (±3 dB),
(DOLBY NR OFF) 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 Ω unbalanced
Intermediate frequency 10.7 MHz

AM tuner section

Tuning range 531 - 1,602 kHz

Antenna AM loop antenna
Antenna terminals External antenna terminal
Intermediate frequency 450 kHz

(with the interval set at 9 kHz)
530 - 1,710 kHz
(with the interval set at 10 kHz)

General

Power requirements

European model: 230 V AC, 50/60 Hz
Australian and South African models:

Mexican model: 120 V AC, 50/60 Hz

Power consumption 190 W
Dimensions (w/h/d) Approx. 280 × 340 × 390 mm

Mass: Approx. 9.2 kg

Design and specifications are subject to change without notice.

240 V AC, 50/60 Hz

(111/8 × 131/2 × 153/8 in.)

(20 lb 5 oz.)

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DO TTED LINE WITH
MARK ! 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

TABLE OF CONTENTS

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

2. GENERAL ······································································ 4

3. DISASSEMBLY

3-1. CD door ·············································································· 6
3-2. CD Mechanism Deck ························································· 6
3-3. Front Panel ········································································· 7
3-4. Main Board········································································· 7
3-5. Key Board··········································································· 8
3-6. Mech Deck ········································································· 8
3-7. Front Panel (B) ··································································· 9
3-8. Front Board, H/P Board······················································ 9
3-9. Front AMP Board, AMP Board, Photo Socket Board, Fuse

Board ················································································ 10
3-10. CD Tray ············································································ 10
3-11. CD Decord Board ····························································· 11
3-12. Base Unit ·········································································· 12
3-13. Cassette Lid (A)/(B) ························································· 12

4. TEST MODE ································································ 13

5. MECHANICAL ADJUSTMENTS··························14

6. ELECTRICAL ADJUSTMENTS ··························· 14

7. DIAGRAMS

7-1. Block Diagrams

Tuner CD Section ························································ 19

Main Section ·······························································20
7-2. Circrit Boards Location ···················································· 21
7-3. Printed Wiring Board Main Section ······························ 22
7-4. Schematic Diagram Tuner Section ································ 23
7-5. Schematic Diagram Dolby Section ······························· 24
7-6. Schematic Diagram Tape Power Section······················· 25
7-7. Printed Wiring Board Front Section ······························ 26
7-8. Schematic Diagram Front Section································· 27
7-9. Printed Wiring Board FLD Section ······························· 28
7-10. Schematic Diagram FLD Section·································· 29
7-11. Printed Wiring Board CD Section································· 30
7-12. Schematic Diagram CD Section···································· 31
7-13. Printed Wiring Board Center/Rear AMP Section ·········· 32
7-14. Schematic Diagram Center/Rear AMP Section············· 33
7-15. Schematic Diagram Front AMP Section ······················· 34
7-16. Printed Wiring Board Front AMP Section ····················35
7-17. IC Block Diagrams ··························································· 36
7-23. IC PIN Function Description············································40

SECTION 1

SERVICING NOTES

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.

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.

CAUTION

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

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

8. EXPLODED VIEWS

8-1. Cabinet Section································································· 42
8-2. Front Panel Section-1 ······················································· 43
8-3. Front Panel Section-2 ······················································· 44
8-4. CD Mechanism Deck Section-1 ······································· 45
8-5. CD Mechanism Deck Section-2 ······································· 46
8-6. Base Unit Section (KSM-213ECM)································· 47

9. ELECTRICAL PARTS LIST ··································· 48

Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.

The following caution label is located inside the unit.

3

@£
@™
@¡

@º
!ª
!•

!¶

!§

!∞

SECTION 2

GENARAL

12 34

5

6
7

8

9
0
!¡

!™

1 1/u (Power) button and indicator
2 DISC 1 to 3 button and indicators
3 DISC SKIP button
4 § (CD) button
5 CD disc tray
6 p button
7 CD, ^ button and indicator
8 TUNER/BAND button
9 FILE SELECT button
0 DBFB button
!¡ DSP button
!™ § (deck B)
!£ Tape deck B
!¢ Tape deck A
!∞ § (deck A)
!§ DOLBY PRO LOGIC button
!¶ PHONES jack
!• REPEAT, STEREO/MONO button
!ª PLAY MODE, TUNER MEMORY button
@º EDIT DIRECTION button
@¡ FUNCTION button
@™ TAPE A, 9 and ( buttons and indications
@£ TAPE B, 9 and ( buttons and indications

#•

#¶
#§

#∞

#¢

#£

#™
#¡

@¢

!£!¢

@¢ Fluorescent indicator tube
@∞ ENTER/NEXT button and indicator
@§ REC button and indicator
@¶ PAUSE button
@• CD SYNC button
@ª VOLUME knob
#º +, ) button and indicator
#¡ JOG dial

@∞

#™ –, 0 button and indicator
#£ TIMER SELECT button and indicator
#¢ CLOCK/TIMER SET button

@§

@¶

#∞ DISPLAY button
#§ DEMO button
#¶ GROOVE button and indicator
#• Remote sensor

@•

@ª
#º

4

This section is extracted
from instruction manual.

5

)

SECTION 3

DISASSEMBLY

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

3-1. CD DOOR

2

CD door

Three claws

1

Pull out the CD tray and remove the CD door

with releasing claws into the direction of arrow.

3-2. CD MECHANISM DECK

2

Screw (PTPWH 3 × 10)

4

Flat type wire (CN705)

7

CD mechanism deck

5

Harness (CN304

6

Connector (CN703)

3

Screws (BVTP 3 × 10)

1

Screw (PTPWH 3 × 10)

6

3-3. FRONT PANEL

)

d

1

(CN302)

6

Screws

(BVTP 3

9

Front panel

Connector (CN301)

×

10)

5

Screw

(PTPWH 3

2

Connector (CN502)

×

10)

8

Screws (BVTP 3 × 10)

7

Screws (BVTP 3 × 14

4

Screw (PTPWH 3 × 10)

3-4. MAIN BOARD

1

Harness (CN303)

3

Screws (BVTT 3 × 10)

6

Screws (BVTP 3 × 10)

7

2

Connector (CN201)

MAIN boar

5

PWB stopper

3

Connector (CN202)

4

Screw (BVTP 3 × 8)

7

)

3-5. KEY BOARD

)

6

KEY BOARD

3

Connector (CN607)

Two claws

5

Button

1

Screws (BVTP 3 × 12

2

CD PC board

bracket

4

Connector (CN606)

3-6. MECH DECK, FLD BOARD

1

Flat type wire (CN603)

3

Mech deck

7

FLD board

4

Screws (BVTP 3 × 10)

5

6

Connector (CN602)

2

Screws (BVTP 3 × 8)

Connector (CN601

8

3-7. FRONT PANEL (B)

)

Three claws

2

Front panel (B)

Three claws

1

Screws (BVTP 3 × 10

Two claws

3-8. FRONT BOARD, H/P BOARD

9

Washer
(VR601)

3

Nut

(VR601)

1

Jog knob

2

Volume knob

H/P board

4

Nut(VR602)

7

Screw (BVTP 3 × 10)

8

Holder

Washer
(VR602)

Five claws

5

Screws (BVTP 3 × 10)

6

Front board

9

3-9. FRONT AMP BOARD, AMP BOARD, PHOTO SOCKET BOARD, FUSE BOARD

)

5

Front amp/Amp board

7

Photo socket board

1

9

Screws (BVTP 3 × 10)

8

Remove the four

solderings

0

Fuse board

Connector (CN501)

3

Screws (BVTP 3 × 10)

6

Screw (BVTP 3 × 10)

2

HOW TO SET THE
POWER CORD

Screws (BVTP 3 × 10

3-10. CD TRAY

2

Bracket

4

1

Screw (+P 2.6 × 4)

Screws (P 4 × 12)

Power cord

5

Flat type wire

(CN06)

3

Screw (+P 2.6 × 4)

10

6

CD tray

4

Bracket

3-11. CD DECORD BOARD

0

CD decord board

7

T wo screw

(+BVTP 3

8

Sheet

Claw

Claw

×

10)

1

Two screws (+BVTP 3 × 10)

6

Flat type wire (CN06)

5

Flat type wire (CN01)

4

Connector (CN05)

9

Connector (CN03)

Two claws

3

Belt

2

Two screws (+BVTP 3 × 10)

11

3-12. BASE UNIT

5

UD-cam

4

Screw (+PTPWH 2.6 × 8)

2

Screw (+PTPWH 3 × 8)

3

UD-gear

7

Spring

3-13. CASSETTE LID (A)/(B)

8

Spring

1

9

Base unit

1

Remove the cassette lids in the direction of arrow.

6

Spring

Two screws (+KTP 3 × 8)

12

Four claws

Four claws

SECTION 4

TEST MODE

Initialization

Press the STOP button and POWER OFF button at the same time.
All preset data is re-set to the initial (default) value.

Model display

Press the STOP button and DISC 1 button at the same time.
Model name is displayed.

Destination display

Press the STOP button and DISC 2 button at the same time.
Destination is displayed.

Version display

Press the STOP button and DISC 3 button at the same time.
Version number of the microprocessor is displayed.

CD aging mode

Press the STOP button and DISC SKIP/EX-CHANGE button at the
same time.
Set discs to DISC 1 and DISC 3. The following operations are
repeated when aging

starts:

1. DISC 1: TOC Read

2. Plays back the last music of the DISC 1

3. DISC 3 : TOC Read

4. Plays back the last music of the DISC 3.

5. STOP

6. Tray is open and closed.

CD service mode

Press the STOP button and OPEN/CLOSE button at the same time.
The message “CD S - -” is displayed on the screen. The sled is
moved to the outer circumference while the FF button is pressed.
Also, the SLED is moved to the inner circumference while the REW
button is pressed. After pressing the PLAY button, FOCUS is turned
ON, CLV-S is set, TRACKING and SLED servos are turned OFF
and ADDRESS 3 = 3F, 37 is set.

Display

Press the STOP button and DBFB button at the same time.
All displays are turned ON.

Balance adjustment value

Press the STOP button and DISPLAY button at the same time.
The balance adjustment value is displayed.

Key check

Press the STOP button and FILE SELECT button at the same time.
Function of the pressed key is displayed.

TAPE aging mode

Press the STOP button and PLAY A button at the same time.
Insert a commercially available cassette tape (10 min) to the decks
A and B. When aging starts, each tape is rewound and the follo wing

operations are repeated:

1. TAPE A: FWD PLAY for one minute

2. TAPE A: FWD STOP for one second

3. TAPE A: FWD PLAY for three minutes

4. TAPE A: FWD FF to tape end

5. TAPE B: FWD PLAY for one minute

6. TAPE B: FWD REC PAUSE for one second

7. TAPE B: FWD REC for three minutes

8. TAPE B: FWD FF to tape end

9. TAPE B: REV PLAY for one minute

10. TAPE B: REV REC PAUSE for one second

11. TAPE B: REV REC for three minutes

12. TAPE B: REV FF to tape end.

13

SECTION 5

MECHANICAL ADJUSTMENTS

SECTION 6

ELECTRICAL ADJUSTMENTS

Precaution

1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback head pinch rollers
erase head rubber belts
capstan idlers

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

Torque

FWD
FWD

back tension

FF/REW

Torque meter

CQ-102C

CQ-102C

CQ-201B

Meter reading

40 to 70 g • cm

(0.56 - 0.97 oz • inch)

1 to 5 g • cm

(0.01 - 0.07 oz • inch)

55 to 140 g • cm

(0.76 - 1.94 oz • inch)

DECK SECTION 0 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 giv en 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 R­CH.

Tape

P-4-A100

WS-48B

Record/Playback Head Azimuth Adjustment
(Deck A, Deck B)

Note: Perform this adjustments for both decks.

Procedure:

1. Mode : Playback

Signal

10 kHz, –10 dB

3 kHz, 0 dB

Used for

Azimuth Adjustment

Tape Speed Adjustment

test tape
P-4-A100
(10kHz, –10dB)

2. Turn the adjustment scr ew 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 2 dB of peak.

L-CH
peak

screw
position

output
level

R-CH
peak

SPEAKER
terminal (JK401)

set

within
2dB

L-CH
peak

R-CH
peak

level meter

within 2dB

screw
position

14

3. Mode: Playback

e

r

Tape Speed Adjustment (Deck A)

test tape
P-4-A100
(10kHz, –10dB)

in phase 45˚ 90˚ 135˚ 180˚

SPEAKER
terminal (JK401)
(L-CH)

L

R

SPEAKER
terminal (JK401)
(R-CH)

Waveform of oscilloscope

good wrong

oscilloscop

4. After the adjustments, apply suitable locking compound to the
parts adjusted.

Adjustment Location:

Remove the cassette lid before adjustment (See page 9)

Procedure:

1. Mode: Playback

test tape
WS-48B
(3kHz, 0dB)

set

SPEAKER
terminal (JK401)

frequency counte

+
–

2. Adjust the SFR601 so that the frequency counter reads 3,000
Hz ± 90Hz.

Adjustment Location: MAIN board

Sample Value of Wow and flutter

W. RMS (JIS) within 0.3%
(test tape: WS-48B)

[FLD BOARD] — Component side —

Adjustment screws
REC/PB head (deck B)
or PB head (deck A)

Tape Speed

SFR601

CN604

15

TUNER SECTION 0 dB=1µV

r

AM T uning Volta ge Adjustment

Main board

TP1

G
VT

DC voltmete

+
–

Procedure:

1. Set the reception frequency of the unit to 530 kHz.

2. Adjust L107 for 1.2 ± 0.05 V reading on the DC voltmeter.

3. Set the reception frequency of the unit to 1,710 kHz.

4. Confirm that the voltage reading on the DC v oltmeter is within

8.0 ± 0.5 V.

Adjustment Location: MAIN board (See page 17)

AM T racking Adjustment

loop antenna

AM RF SSG

loop antenna
(Supplied accessories)

set

30% amplitude
modulation by
400 Hz signal

Field strength dB (

Procedure:

1. Tune the set to 600 kHz.

2. Set the output of AM RF SSG so that the input level of the set
will become 60 dB (µV/m).

3. Adjust L104 so that when the wav eform on the oscilloscope is
maximum, no noise appears.

4. Tune the set to 1,400 kHz.

60 cm

µ

V/m) =SSG output level dB (µV/m) –26 dB.

AM ANTENNA
terminal (TM1)

5. Adjust TC101 so that when the wa v eform on the oscilloscope
is maximum, no noise appears.

• Repeat the procedures in each adjustment several times, and the

tracking adjustment should be finally done by the trimmer
capacitors.

Adjustment Location: MAIN board (See page 17)

16

FM Tuned Level Adjustment

FM RF SSG

Ω

coaxial

75

set

Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 28 dB (at 75 W open)

FM ANTENNA terminal
(JK101)

Procedure:

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

2. Tune the set to 98 MHz.

3. Adjust SFR101 to the point (moment) when the TUNED
indicator will change from going off to going on.

Adjustment Location: MAIN board

Adjustment Location

[MAIN BOARD] Component side

TP1

AM T uning
Voltage

SFR101

FM T uned Level

L107

AM T rac king

L104

TC101

JK101

17

CD SECTION

V

Note:

1. CD Block is basically constructed 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.

5. Adjust the focus bias adjustment when optical block is replaced.

RF Level Check

CD DECODER
board

TP (RF)
TP (VC)

oscilloscope

Procedure :

1. Connect oscilloscope to test point TP (RF) on CD DECODER
board.

2. Turned Power switch on.

3. Put disc (YEDS-18) in and playback.

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

Note: Clear RF signal waveform means that the shape “◊” can be

clearly distinguished at the center of the waveform.

VOLT/DIV: 200 m
TIME/DIV: 500 nS

level: 1.0 Vp-p

+0.3
–0.2

Adjustment Location:

[CD DECODER BOARD] Component side

IC702

J778

TP (VC)

IC701

J789

CN701

TP

(RF)

18

7-1. BLOCK DIAGRAMS

TUNER/CD SECTION

FM

AM

JK101

SECTION 7

HCD-GRX40AV/RXD6AV

DIAGRAMS

FM

IF

FM

DET

AM

DET

AGC

SMET

20

FM/AM MPX

AM

OSCAMMIX

TU LED

ST MONO

12

6

11

IC102

PH DET

AM/FM

IF BUFF

AM

IF

FM DET

ST IND

AM/FM

MUTE

L

CF103

450kHz

13

R

14

R CH

Q109
MUTE

DECODER

CF104

8

10.7MHz

4

T102

AM IFT

2

7

10

TU L

ST IND

TU MUTE

DO

A

MAIN

SECTION
(Page 20)

• RCH is omitted

• SIGNAL PATH

:FM

:AM

:CD

FM FRONT END

FE101

8

RF

L104

AM ANT

MIX

TC101

1

3

OSC

4

VT

D105

Q104

AM RF

AMP

TUB+

Q103

+12V

CF101

10.7MHz

X201

7.2MHz

Q101

RF IF
AMP

CF102

10.7MHz

L107

MW OSC

SFR101

FM

B+

TUNED
LEVEL

PLL

IC103

FM

PD1

FM B+

XO

XI

SD SPEED

SD IN

ST/MONO

AM/FM

IF IN

CLK

AM

DO

DI

CE

16

18

7

22

1

FM IF

1

MPX

16

FM OUT

19

OSC

23

AFC

22

AM RF

21

OSC/FMSD

24

15
10
11
9
8
12

DO

6

DI

4

CLK

5

CE

3

16

OPTICAL PICK-UP

BLOCK

DETECTOR

7
8
4
1
2
5
6

10

LD

PD

FOCUS

COIL

TRACKING

COIL

GND

VR

VC

A
C
B

D

E

F

LD

PD

F+

F

T+

T

M102
SLED

MOTOR

M101

SPINDOL

MOTOR

T/T

MOTOR

TRAY

MOTOR

MUTE

PH701

DIGITAL

OUT

SCOR
SENS1
SQSO

XLAT
SQCK

CLK
DATA

SENS2
LOCK

DI
CLK
CE

DATA IN
STB

CD L

B

MAIN

SECTION
(Page 20)

C

MAIN

SECTION
(Page 20)

GEN.

PWM

PWM

15

SPOA

D OUT

L MUTE

XTA1

XTA0

53

NL

67

Q705,707

NR

74

R-CH

70

X701

16.9344MHz

71

2

CD RF/SERVO

PROSSESOR

+5V

VC

51

PD1

38

PD2

39

E

42

F

Q703

41

LD

36

APC

PD

PD

37

B+

REG

+5V

Q701

APC

F/T COIL

SL/SP MOTOR

T.T/TRAY MOTOR

DRIVER

IC703

2

F+

F IN

REG I

REG B

REG OUT

SL IN

SP IN

T.T F IN

T.T R IN

TR F IN

TR T IN

MUTE IN

6

T IN

5

VCC

8

VCC

7
9

10
11

22

21

13

12
29

28

27

1

F

3

T+

4

T

SL+

18

M

SL

17

SP+

19

M

SP

20

T.T+

14

M

T.T

15

TR+

30

M

TR

31

IC701 (1/2)

RF

AMP

FE

AMP

FOCUS PHASE

COMPENSATION

FEO TAO

6

IC701 (2/2)

16

IC705

67

COMAND

PARALLEL

CONVERTER

DECODER

14

SERIAL/

TRACKING PHASE

COMPENSATION

13

RFO

33

FOK

27

C OUT

IIL

TTL

TTL

IIL

SENS1
SENS2

DATA

XLT

CLK
XRST
LOCK

Q702

SWITCH

24
25
26

22
21
20
23
19

T.T/TRAY
MOTOR DRIVE
REG CONTROL

IC704

XRST

CONTROL

T.T+

T.T

TR+

TR

CONTROL

MUTE

CLOK

DATA

4

3

2

STB

1

6

11

7

14
13

12

5

RF

35

FOK

18

CIN

11

SE

10

DAT

12

XLT

13

CLK

14
79

XRST

MDP

21

CD DIGITAL

SIGNAL PROCESSOR

IC702

DEMO.

CLV

SERVO

DIGITAL

CLV

D/A

I/F

SERIAL

I/F

EFM

SUB CODE

PROSSESOR

S05

STOP

SWITCH

CLOCK

CPU I/F

SQSO

SENS

XLAT

SQCK

CLOK

DATA

7 9 4 5 6 6257

8

SCOR

SYS M

19

19