Sony HCD-GRX5, HCD-RX66 Service Manual

HCD-GRX5/RX66

SERVICE MANUAL

HCD-GRX5/RX66 is the Amplifier, CD
player, Tape Deck and Tuner section in
MHC-GRX5/RX66.

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

Photo: HCD-RX66

CD
Section

T APE
DECK
Section

US Model

Canadian Model

HCD-RX66

E Model

Austr alian Model

HCD-GRX5

Model Name Using Similar Mechanism HCD-H991AV

CD Mechanism Type
Base Unit Type BU-5BD29AL

Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism NEW

Tape Tr ansport Mechanism Type

CDM38L-5BD29AL/
CDM38LH-5BD29AL

TCM-230AWR1/
230PWR1

SPECIFICA TIONS

AUDIO POWER SPECIFICATIONS:
(U.S.A. model only)

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:

with 6 ohm loads both channels driven, from 70 - 20,000 Hz; rates 60
watts per channel minimum RMS power, with no more than 0.9% total
harmonic distortion from 250 milliwatts to rated output.

Amplifier section

Canadian model:
Continuous RMS power output (reference)

60 + 60 watts
(6 ohms at 1 kHz, 10% THD)

Total harmonic distortion less than 0.07%

(6 ohms at 1 kHz, 45 W)

Other models:
The following measured at AC 110, 220 V 50/60 Hz
DIN power output (rated) 50 + 50 watts

(6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

65 + 65 watts

(6 ohms at 1 kHz, 10% THD)
The following measured at AC 120, 240 V 50/60 Hz
DIN power output (rated) 60 + 60 watts

(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)

75 + 75 watts

(6 ohms at 1 kHz, 10% THD)
Peak music power output (reference)

1000 watts

Inputs
MD/VIDEO IN: voltage 450 mV,
(phono jacks) impedance 47 kilohms
MIX MIC: (phone jack) sensitivity 1 mV, impedance 10

kilohms

– Continued on next page –

MINI Hi-Fi COMPONENT SYSTEM

MICROFILM

7-6. SCHEMATIC DIAGRAM – CD Section – • See page 28 for Waveforms. • See page 65 and 66 for IC Block Diagrams. • See page 27 for Note on Schematic Diagram.

HCD-GRX5/RX66

(Page 45)

MAIN BOARD

CN105

– 31 –

Note:

The components identi­fied by mark ! or dotted
line with mark ! are criti­cal for safety.
Replace only with part
number specified.

– 32 –

Note:

Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

7-8. SCHEMATIC DIAGRAM – CD MOTOR Section –

• See page 67 for IC Block Diagrams. • See page 27 for Note on Schematic Diagram.

HCD-GRX5/RX66

(Page 45)

(Page 45)

MAIN BOARD

CN104

MAIN BOARD

CN103

– 35 –

– 36 –

7-10. SCHEMATIC DIAGRAM – TAPE DECK Section –

• See page 67 for IC Block Diagrams. • See page 27 for Note on Schematic Diagram.

HCD-GRX5/RX66

MAIN BOARD

(Page 49)

CN106

– 39 –

– 40 –

HCD-GRX5/RX66

7-11. PRINTED WIRING BOARD – LEAF SW Section – • See page 18 for Circuit Boards Location. • See page 27 for Note on Printed Wiring Boards.

MAIN BOARD

CN107

(Page 43)

7-12. SCHEMATIC DIAGRAM – LEAF SW Section – • See page 27 for Note on Schematic Diagram.

• Semiconductor Location

Ref. No. Location

D141 G-9
D401 G-10
D501 E-5
D502 E-5
D503 E-5
D504 E-5
D505 E-6
D506 E-6
D507 F-3
D508 F-2
D901 I-6
D902 I-5
D903 I-6
D904 I-6
D905 G-6
D906 G-7
D907 H-4
D908 H-4
D909 I-5
D910 I-4
D911 I-4
D912 I-4
D913 G-3
D914 G-5
D915 I-3

IC101 D-9
IC102 F-10
IC191 D-11
IC301 B-2
IC381 A-11
IC501 D-4
IC502 E-6
IC901 G-5
IC902 G-3
IC903 H-3

Q111 F-9
Q112 F-9
Q113 H-8
Q161 E-8

Ref. No. Location

Q162 D-8
Q163 H-8
Q191 D-11
Q331 C-2
Q332 D-2
Q333 C-2
Q334 D-2
Q335 C-1
Q336 E-2
Q337 E-2
Q338 F-2
Q339 F-2
Q340 E-2
Q341 E-2
Q342 E-2
Q343 E-2
Q431 G-9
Q432 H-8
Q433 H-9
Q434 H-8
Q435 H-8
Q436 G-8
Q437 G-8
Q501 E-7
Q571 E-6
Q572 E-6
Q575 F-8
Q901 F-6
Q902 G-6
Q903 H-6
Q905 F-6
Q906 G-6
Q907 G-4
Q908 G-5
Q909 H-4
Q910 I-4
Q913 G-6
Q914 F-7
Q951 G-7
Q952 G-7

– 41 –

MAIN BOARD

CN107

(Page 49)

– 42 –

HCD-GRX5/RX66

7-14. SCHEMATIC DIAGRAM – MAIN Section (1/4) –

• See page 28 for Waveforms. • See page 27 for Note on Schematic Diagram. • See page 43 and 44 for Printed Wiring Board.

(page 47)

(page 32)

(page 36)

(page 36)

(page 51)

– 45 –

(page 49)

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : CD

– 46 –

7-15. SCHEMATIC DIAGRAM – MAIN Section (2/4) –

• See page 28 for Waveforms. • See page 27 for Note on Schematic Diagram. • See page 43 and 44 for Printed Wiring Board.

(page 62)

HCD-GRX5/RX66

(page 46)

(page 59)

– 47 –

(page 51)

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM

– 48 –

Note:

The components identi­fied by mark ! or dotted
line with mark ! are criti­cal for safety.
Replace only with part
number specified.

Note:

Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

HCD-GRX5/RX66

7-16. SCHEMATIC DIAGRAM – MAIN Section (3/4) –

• See page 28 for Waveforms. • See page 27 for Note on Schematic Diagram. • See page 43 and 44 for Printed Wiring Board.

(page 45)

(page 40)

(page 42)

(page 51)

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM { } : PB (DECK A)
( ) : CD [ ] : PB (DECK B)

< > : REC

– 49 –

– 50 –

7-17. SCHEMATIC DIAGRAM – MAIN Section (4/4) –

• See page 28 for Waveforms. • See page 27 for Note on Schematic Diagram. • See page 43 and 44 for Printed Wiring Board.

(page 47)

(page 46)

HCD-GRX5/RX66

(page 50)

– 51 –

– 52 –

(page 64)

(page 56)

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM { } : PB (DECK A)
( ) : CD [ ] : PB (DECK B)

< > : REC

7-19. SCHEMATIC DIAGRAM – PANEL Section –

• See page 28 for Waveforms. • See page 67 for IC Block Diagrams. • See page 27 for Note on Schematic Diagram.

HCD-GRX5/RX66

(page 52)

(page 57)

– 55 –

– 56 –

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM

HCD-GRX5/RX66

7-20. PRINTED WIRING BOARD – CD-SW Section –

• See page 18 for Circuit Boards Location. • See page 27 for Note on Printed Wiring Boards.

(page 54)

7-21. SCHEMATIC DIAGRAM – CD-SW Section –

• See page 27 for Note on Schematic Diagram.

(page 56)

– 57 –

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM

– 58 –

7-22. PRINTED WIRING BOARD – HP Section –

• See page 18 for Circuit Boards Location. • See page 27 for Note on Printed Wiring Boards.

HCD-GRX5/RX66

(page 44)

7-23. SCHEMATIC DIAGRAM – HP Section –

• See page 27 for Note on Schematic Diagram.

(page 48)

– 59 –

7-25. SCHEMATIC DIAGRAM – POWER AMP Section –

• See page 27 for Note on Schematic Diagram.

HCD-GRX5/RX66

(page 64)

(page 47)

• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM

– 61 – – 62 –

Note:

The components identi­fied by mark ! or dotted
line with mark ! are criti­cal for safety.
Replace only with part
number specified.

Note:

Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

HCD-GRX5/RX66

7-26. PRINTED WIRING BOARD – TRANSFORMER Section –

• See page 18 for Circuit Boards Location. • See page 27 for Note on Printed Wiring Board.
7-27. SCHEMATIC DIAGRAM – TRANSFORMER Section –

• See page 27 for Note on Schematic Diagram.

(page 62)

(page 52)

Note:

The components identi­fied by mark ! or dotted
line with mark ! are criti­cal for safety.
Replace only with part
number specified.

Note:

Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

(page 43) (page 60)

– 63 –

– 64 –

• IC Block Diagrams
– BD Board –

IC101 CXA1992AR

+

PD2 IV
AMP

FE_BIAS

40

VEE

BAL1

TOG2

TOG1

–
+

–
+

VCC

FZC COMP.

–
+

F IV AMP

–
+

E IV AMP

BAL2

BAL3

TOG4

TOG3

+
–

ATSC
WINDOW
COMP.

–
+

TZC COMP.

+
–

BAL4

VCC

+
–

VEE

LPFI

ATSC

TDFCT

F

41

E

42

43

EI

44

VEE

TEO

45

46

47

TEI

48

49

TZC

50

51

VC

FZC

52

PD2

–

+
–

+
–

1

FEO

PD1

–

+

PD1 IV
AMP

TGFL

–

+

E-F BALANCE
WINDOW COMP.

DFCT

2 3

FEI

VCC

TM1

VCC

VEE

IFB1

+
–

IFB2

PD

+

APC

FDFCT

VEE

–

IFB3

DFCT

LD

+

–

+

–

VEE

LASER POWER CONTROL

FE AMP

IFB4

IFB5

IFB6

+
–

TRK. GAIN
WINDOW COMP.

+
–

TG1

FOCUS
PHASE COMPENSATION

FS4

4

FGD

VEE

MIRR

CP

–

+

VCC

–

+

–

–

+

RF_O

RF_M

RFTC

–
+

RF SUMMING
AMP

+
–

+
–

–

+

+
–

+

–

+
–

FO. BIAS
WINDOW
COMP.

–

RF_I

+

–

+

VEE
LEVEL S

VCC

–

+

FOK

LDON

LPCL

LPC

FOH
FOL
TGH
TGL

BALH

BALL
ATSC

TZC

FZC

TRACKING
PHASE COMPENSATION

TGFL

DFCTO

IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER

IFB1-6

FS1-4 TG1-2 TM1-7 PS1-4
BAL1-4
TOG1-4

VCC

FS1

+

FS2

–

Charge

up

VEE

5 6 7 8 9 10

FLB

FE_O

FE_M

SRCH

TGU

CC1

CB

CC2

FOK

27282930313233343536373839

–

+

SENS2

26

+

–

IIL

↓

VCC

–

+

–

VEE

+

–

+

TTL

DFCT

+

MIRR

IIL

↓

TTL

DFCT1

CC1

TTL

↓

IIL

VCC

ISET

VCC VCC

SENS1

25

C. OUT

24

XRST

23

DATA

22

XLT

21

CLK

20

LOCK

19

VCC

18

ISET

17

SL_O

16

TM4 TM6

SL_M

15

TM7

TM3

FSET

TG2

TM5

–

SL_P

14

+

VEEVEE

TM2

–

+

131211

TG2

FSET

TA_M

TA_O

– 65 –

IC102 BA5941FP-E2

IN4B

IN4A

IN3B

27

28

26

IN3A

OP OUT

OP IN (–)

OP IN (+)

24

25

22

23

GND

21 20

NC

VCC

OUT3A

18

19

OUT3B

1617

OUT4A

OUT4B

15

NC

+

–

Vcc

–

+

–

+

–

+

–

+

1 2

VCC

BIAS IN

IC103 CXD2519Q

–

+
–
+

+
–

+

–

MUTE

4

3

IN1B

IN1A

SYSM

VDD

VSS

79 78

EXCK

77

76 75 74

80

5

IN2B

SBSO

SCOR

WFCK

6

IN2A

EMPHI

73 72

EMPH

71

DOUT

7

GND

C4M

70

FSTT

69 68

XTSL

MNT0

67

8

GND

MNT1

66 65 64

MNT3

9

XROF

MUTE

C2PO

63 62

RFCK

VccVcc

10

GFS

61

VCC

60

XPCK

XUGF

59 58

LEVEL SHIFT

LEVEL SHIFT

+

–

11

OUT2A

GTOP

VDD

56 55 54

57

+

12 13

VSS

BCKI

BCK

–

OUT2B

PCMDI

PCMD

53 52 51

LRCKI

LEVEL SHIFT

LEVEL SHIFT

+

–

OUT1A

+

–

14

OUT1B

AVSS
AVDD

AOUT1

AIN1

LOUT1

AVSS
XVDD

XTAI
XTAO
XVSS
AVSS

LOUT2

AIN2

AOUT2

AVDD
AVSS

XRST

LRCK

OSC

50

WDCK

49
48

ASYE

47

ASYO

46

ASYI

45

BIAS

44

RF
AVDD

43
42

CLTV
AVSS

41
40

FILI
FILO

39
38

PCO

37

VCTL

36

V16M

35

VCKI
VPCO1

34
33

VPCO2

32

TES1

31

TES0

81

NC

82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98

NC

99

NC

100

–
+

–
+

SERIAL-IN

INTERFACE

1 234

VDD

VSS

LMUT

OVER SAMPLING

TIMING

LOGIC

–
+

–
+

DIGITAL FILTER

RMUT

PWMPWM

INTERFACE

56789 10

TES2

SQCK

CKOUT

3RD-ORDER NOISE SHAPER

SUB CODE

PROCESSOR

CPU

12 13

11

XLAT

SENS

DATA

SQSO

CLOK

EFM

DEMODURATOR

15 16 17

14

SEIN

CNIN

DATO

SERVO

AUTO

SEQUENCER

18 19

XLTO

CLKO

SPOA

ERROR

CORRECTOR

16K RAM

21

20

SPOB

SPOC

SPOD

22 23

XLON

24

FOK

D / A

INTERFACE

DIGITAL OUT

25 26 27

VSS

VDD

DIGITAL CLV

MDP

MON

28 29 30

MDS

LOCK

PWMI

ASYMMETRY
CORRECTOR

DIGITAL

PLL

CLOCK

GENERATOR

– 66 –

– AUDIO Board –
IC602 µPC1330HA

2

1

SW R1 GND SW P1

3

– PANEL Board –
IC603 BA3833FP

f01

RESET

17

18

CONT

f02
16

COMPARATER

4

5

GND

f03
15

INVERTER

6

VCC

7 8 9

SW P2 GND

f04
14

SW R2

f

VCC11NC

13

12

NC
10

DET

RESET

BPF

BPF DET

CURRENT

REFFERENCE

2

PREF

3

LINENFLINE

1

C

RESET

– MOTOR (TURN) Board –
IC701 M54641L

VCC

1
2

OUT2

REG

IN1

GND

INPUT

3

AMP.

CONTROL

INPUT

AMP.

4

BPF DET

4

IN

POWER AMP.

POWER AMP.

5

GND

BPF DET

VCC

8

OUT1

7

IN2

6

REFERENCE

5

6

BIAS

Bias

C

DET

7

8

9

NC

NC

NC

– MOTOR (SLIDE) Board –
IC801 BA6286N

TSD

POWER

SAVE

CONTROL

LOGIC

GND

RIN

VREF

OUT2

RNF

GND

OUT1

VM

VCC

FIN

1
2
3
4
5
6

7
8
9

10

– 67 –