Sony HCD-GRX8 User manual

– 1 –
MICROFILM
HCD-GRX8/R800/
RX88/RX99
AEP Model
UK Model
HCD-RX88/RX99
E Model
HCD-GRX8/R800
Australian Model
HCD-GRX8
SPECIFICATIONS
Photo: HCD-GRX8
SERVICE MANUAL
COMPACT DISC DECK RECEIVER
— Continued on next page —
Model Name Using Similar Mechanism HCD-H991AV
CD Mechanism Type CDM38L-5BD29AL/
CDM38LH-5BD29AL
Base Unit Type BU-5BD29AL
Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism NEW
TapeTransport MechanismType TCM-230AWR1/230PWR1
CD
SECTION
TAPE
DECK
SECTION
HCD-GRX8/R800/RX88/RX99 is the
tuner, deck, CD and amplifier section in
MHC-GRX8/R800/RX88/RX99.

– 39 – – 40 –
HCD-GRX8/R800/RX88/RX99
7-4. SCHEMATIC DIAGRAM — CD SECTION —
• See page 35 forWaveforms.
• See page 85 for IC Block Diagrams.
• See page 88 for IC Pin Functions.
(Page
56)

– 41 – – 42 –
HCD-GRX8/R800/RX88/RX99
7-5. SCHEMATIC DIAGRAM –TUNER SECTION – (AEP, UK, German model)
• See page 36 for Waveforms.
• See page 83 for IC Block Diagrams.
(Page 53)

– 45 – – 46 –
HCD-GRX8/R800/RX88/RX99
7-8. SCHEMATIC DIAGRAM –TUNER SECTION – (East European, CIS model)
• See page 36 forWaveforms.
• See page 83 for IC Block Diagrams.
(Page 53)

– 47 – – 48 –
HCD-GRX8/R800/RX88/RX99
7-9. SCHEMATIC DIAGRAM – DECK SECTION –
• See page 87 for IC Block Diagrams.
(Page 54)

– 53 – – 54 –
HCD-GRX8/R800/RX88/RX99
7-12. SCHEMATIC DIAGRAM – MAIN (1/4) SECTION –
(Page 55)
(Page 55)
(Page 59)
(Page 59)
(Page 55)
(Page 59)
(Page 57)(Page 57)
(Page 41, 45)
(Page 48)
(Page 70)

– 55 – – 56 –
HCD-GRX8/R800/RX88/RX99
7-13. SCHEMATIC DIAGRAM – MAIN (2/4) SECTION –
• See page 36 forWaveforms.
• See page 51 for PrintedWiring Board.
• See page 93 for IC Pin Functions.
(Page 54)
(Page 54)
(Page 54)
(Page 59) (Page 59) (Page 60) (Page 60)
(Page 80)
(Page 80)
(Page 40)

– 57 – – 58 –
HCD-GRX8/R800/RX88/RX99
7-14. SCHEMATIC DIAGRAM – MAIN (3/4) SECTION –
• See page 51 for PrintedWiring Board.
(Pasge 53) (Page 53)
(Page 59)
(Page 59)

– 59 – – 60 –
HCD-GRX8/R800/RX88/RX99
7-15. SCHEMATIC DIAGRAM – MAIN (4/4) SECTION –
• See page 51 for PrintedWiring Board.
(Page 54)
(Page
54)
(Page
54)
(Page
58)
(Page
58)
(Page 73) (Page 65)
(Page 56)(Page 55)(Page 55)
(Page 55)
(Page 65)

– 61 –
7-16. SCHEMATIC DIAGRAM – MIC/HP SECTION –
• See page 87 for IC Block Diagrams.
(Page 65)
(Page 65)

– 65 – – 66 –
HCD-GRX8/R800/RX88/RX99
7-19. SCHEMATIC DIAGRAM – POWER SECTION –
(Page
61)
(Page
61)
(Page
60)
(Page
60)
(Page 67)
(Page 67)
(Page 67)
(Page 67)
(Page 67)

– 67 – – 68 –
HCD-GRX8/R800/RX88/RX99
7-20. SCHEMATIC DIAGRAM –TRANSFORMER SECTION –
• See page 63 for PrintedWiring Board. (POWER BOARD)
(Page
66)
(Page
66)
(Page
66)
(Page
66)
(Page
66)

– 69 – – 70 –
HCD-GRX8/R800/RX88/RX99
7-21. PRINTED WIRING BOARD –TRANSFORMER SECTION –
• See page 20 for Circuit Boards Location.
7-23. SCHEMATIC DIAGRAM – LEAF SW SECTION –
7-22. PRINTEDWIRING BOARD – LEAF SW SECTION –
• See page 20 for Circuit Boards Location.
(Page 64)
(Page 51)
(Page 54)
CThese are omitted EB
• Indication of transistor

– 73 – – 74 –
HCD-GRX8/R800/RX88/RX99
7-25. SCHEMATIC DIAGRAM – DISPLAY SECTION –
• See page 36 forWaveforms.
• See page 87 for IC Block Diagrams.
• See page 96 for IC Pin Functions.
(Page
59)
(Page 76)
(Page 75)
(Page 75)

– 75 – – 76 –
HCD-GRX8/R800/RX88/RX99
7-26. SCHEMATIC DIAGRAM – PANEL SECTION –
(Page
74)
(Page
74)
(Page 73)

– 79 – – 80 –
HCD-GRX8/R800/RX88/RX99
7-28. SCHEMATIC DIAGRAM – CD MOTOR SECTION –
• See page 87 for IC Block Diagrams.
(Page 56)
(Page 56)

– 83 – – 84 –
HCD-GRX8/R800/RX88/RX99
•Tuner section
IC21 LC72130
7-30. IC BLOCK DIAGRAMS
IC41 LA1838
IC1701 IR3R42
IC1702 MC14053BCP IC1751 NJM4558D
IC1752 BU1922
PHASE DETECTOR
CHARGE PUMP
SWALLOW COUNTER
1/16, 1/17 4BITS
12BITS PROGRAMMABLE
DRIVER
UNIVERSAL
COUNTER
REFERENCE
DIVIDER
POWER
ON
RESET
1/2
C2B
I/F
12 3 45 6 7 8 9 10
20 19 18 17 16 15 14 13
1211
21222324
XOUT VSS AOUT2 AIN2 PD2 PD1 AIN1 AOUT1 VDD FMIN AMIN IO2
XIN
D0
CL
D1
CE
BO5 BO1 BO2 BO3 BO4
IO1
IFIN
UNLOCK
DETECTOR
DATA SHIFT REGISTER LATCH
OSC
1/2
1/2
PHASE
WAVEFORM
SEP.
GATE
SAMPLE
& HOLD
BUFFER
REGULATOR
PHASE
COMPARATOR
PHASE
COMPARATOR 2
MUTE
TRIGGER
12 3 45 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
AMP
AMP
AMP
LAMP
VCO STOP
ST
LOUT
ROUT
LHC
RHC
POUT
IN
VCC
GND VCO LPF1A LPF1B DETIN LPF2A LPF2B SUBIN SUBOUT MON
1
2
3
4
5
6
7
8
B1
B0
C.COM
CO
INH
VEE
VSS
VDD
B.COM
A.COM
A1
A0
A
B
C
C1
9
10
11
12
13
14
15
16
OPEN
OPEN
OPEN
+–
6
7
5
8
B
+–
2
1
3
4
A
A OUT
A IN–
A IN+
VEE
VCC
B OUT
B IN–
B IN+
QUALITY BIT
GENERATOR
DEFFERENTIAL
DECODER
BIPHASE
SYMBOL
DECODER
OSCILLATOR
AND
DIVIDER
57kHz
BANDPASS
(8th ORDER)
CONTAS LOOP
VARIABLE AND
FIXED DIVIDER
REFERENCE
VOLTAGE
ANTI-
ALIASING
FILTER
CLOCKED
COMPARATOR
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
RECONSTRUCTION
FILTER
141516 13 12 11 10 9
321 4 5 6 7 8
CLOCK REGENERATION
AND SYNC
VP1
RDCL TS7 OSCO OSCI VDDD VSSD TEST TSTL
D
QUAL
RDDA
Vref
MUX
VDDA
VSSA
CIN
SCOUT
ALC
BUFF
AM
OSC
AM
MIX
AM
RF. AMP
AGC
IF DET
S-CURVE
AM/FM
IF
BUFF
REG
TUNING
DRIVE
GND VCC
PILOT
DET
VCO
FF
STEREO
DRIVE
STEREO
SW
MUTE
FF FF
FM
IF
FM
DET
DECODER
ANTI BIRDIE
12 3 4 5 6 7 98
20 19 18 17 16
15141110
212223242527 262930
OSC.BUFF FM-SD.ADJ AM-OSC REG FM-AFC AM-RF-IN AGC MPX-IN FM-DET OUT AM-DET OUT OUT L OUT R AMP-IN L AMP-IN R AMP OUT R AMP OUT L
VCO-STOP
STEREO
AM/FM
AM. SD
FM. SD
AM. SD ADJ
IF-BUFF
MUTE
VCC
FM DET
FM-IN
AM-MIX
FM-IF
AM-IF
GND
TUNED
S METER
FM S METER
AM
COMP
SD
AM
12 13
PHASE
DET
28

– 85 –
• CD section
IC101 CXA1992AR
–
+
+
–
–
+
12 3 45 6 7 8 9 10
20
19
17
16
15
14
131211
21
22
23
24
25
26
27282930313233343536373839
40
41
42
43
44
45
46
52
51
50
49
48
47
+
–
+
–
+
–
+
–
–
+
–
+
–
+
+
–
+
–
+
–
+
–
–
+
+
–
–
+
–
+
+
–
+
–
+
–
+
–
+
–
+
–
–
+
–
+
–
+
–
+
+
–
+
–
–
+
+
–
–
+
–
+
+
–
18
–
+
–
+
–
+
+
–
+
–
–
+
Charge
up
FEO
FEI
FDFCT
FGD
FLB
FE_O
FE_M
SRCH
TGU
TG2
FSET
TA_M
TA_O
SL_P
SL_M
SL_O
ISET
VCC
VCC
LOCK
CLK
XLT
DATA
XRST
C. OUT
SENS1
SENS2
FOK CC2 CC1 CB CP RF_I RF_O RF_M RFTC LD PD PD1 PD2
FE_BIAS
F
E
EI
VEE
TEO
LPFI
TEI
ATSC
TZC
VC
FZC
TM2
VEEVEE
TM3 TM5
TM4 TM6
VCC VCC
TM7
ISET
TTL
↓
IIL
IIL
↓
TTL
IIL
↓
TTL
IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER
DFCTO IFB1-6
BAL1-4
TOG1-4
FS1-4 TG1-2 TM1-7 PS1-4
FOH
FOL
TGH
TGL
BALH
BALL
ATSC
TZC
FZC
FSET
TG2
VEE
VCC
FS1
FS2
FOCUS
PHASE COMPENSATION
DFCT
FS4
TRACKING
PHASE COMPENSATION
TG1
TM1
DFCT
FZC COMP.
VEE
VCC
VCC
TDFCT
TZC COMP.
ATSC
WINDOW
COMP.
E-F BALANCE
WINDOW COMP.
TRK. GAIN
WINDOW COMP.
FO. BIAS
WINDOW
COMP.
VEE
TGFL
TOG1
TOG2
TOG3
TOG4
BAL1
BAL2
BAL3
BAL4
IFB1
IFB2 IFB3
IFB4 IFB5
IFB6
FE AMP
VEE
E IV AMP
F IV AMP
VCC
APC
VCC
VEE
LASER POWER CONTROL
VEE
PD1 IV
AMP
PD2 IV
AMP
RF SUMMING
AMP
VCC
VEE
VEE
LEVEL S VEE
MIRR
VCC
DFCT
FOK
VCC
LDON LPCL LPC TGFL MIRR DFCT1 CC1

– 86 –
IC102 BA5941FP
IC103 CXD2519Q
+–
LEVEL SHIFT
+– +–
1 2 345678910 11 12 13 14
28 27
LEVEL SHIFT
+–
+
–
MUTE
+
–
+–
LEVEL SHIFT
+– +–
LEVEL SHIFT
+–
+
–
+
–
15
1617
18
19
21 20
22
26 25 24 23
+–
NC
Vcc
VccVcc
VCC
BIAS IN
IN1B IN1A IN2B IN2A
GND GND
MUTE
VCC
OUT2A OUT2B OUT1A OUT1B
IN4B IN4A IN3B IN3A OP OUT OP IN (–) OP IN (+) GND NC VCC OUT3A OUT3B OUT4A OUT4B
3RD-ORDER NOISE SHAPER
+
–
+
–
PWMPWM
+
–
+
–
VDD
VSS
LMUT
RMUT
TES2
CKOUT
SQCK
SQSO
SENS DATA
XLAT
CLOK
SEIN
CNIN
DATO
XLTO
CLKO
SPOA SPOB SPOC
SPOD
XLON
FOK
VDD
VSS
MON
MDP MDS
LOCK
PWMI
1 2 3456789 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
LRCK
WDCK
ASYE
ASYO
ASYI
BIAS
RF
AVDD
CLTV
AVSS
FILI
FILO
PCO
VCTL
V16M
VCKI
VPCO1
VPCO2
TES1
TES0
43
42
41
40
39
38
37
36
35
34
33
32
31
50
49
48
47
46
45
44
NC
AVSS
AVDD
AOUT1
AIN1
LOUT1
AVSS
XVDD
XTAI
XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
NC
NC
XRST
88
89
90
91
92
93
94
95
96
97
98
99
100
81
82
83
84
85
86
87
SYSM VDD VSS EXCK SBSO SCOR WFCK EMPHI EMPH DOUT C4M FSTT XTSL MNT0 MNT1 MNT3 XROF C2PO RFCK GFS XPCK XUGF GTOP VDD VSS BCKI BCK PCMDI PCMD LRCKI
71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
80 79 78 77 76 75 74 73 72
ASYMMETRY
CORRECTOR
DIGITAL
PLL
CLOCK
GENERATOR
D / A
INTERFACE
DIGITAL CLV
SERIAL-IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
SUB CODE
PROCESSOR
TIMING
LOGIC CPU
INTERFACE
SERVO
AUTO
SEQUENCER
ERROR
CORRECTOR
16K RAM DIGITAL OUT
OSC
EFM
DEMODURATOR

– 87 –
• Deck section
IC602 uPC1330HA
• Main section
IC392 MC74HCU04F
IC851 MSM6653A-517GS-K
• Mic section
IC751 M65850FP
IC701 M54641L
• CD motor section
IC801 BA6286N
• Display section
IC603 BA3833FP
1234567 8 9
INVERTER
COMPARATER
SW R1 GND SW P1 CONT GND VCC SW P2 GND SW R2
14 13 12 11 10 9 8
1 2 3 4 5 6 7
VCC
GND
1
5
2
7
3
6
4
POWER
AMP.
POWER
AMP.
CONTROL
INPUT
AMP.
INPUT
AMP.
REG
8
VCC VCC
REFERENCE
OUT2
OUT1
IN1
IN2
GND
1
2
3
4
5
6
7
8
9
10
TSD CONTROL
LOGIC
POWER
SAVE
GND
RIN
VREF
OUT2
RNF
GND
VM
VCC
FIN
OUT1
2
3
14
1
f04
13 f
12 VCC
11 NC
10 NC
15 f03
5
GND
6
BIAS
C
7
NC
8
NC
9
NC
4
16 f02
17 f01
18 RESET
RESET
C
PREF
LINE
NF
LINE
IN
REFFERENCE
CURRENT
BPF DET
BPF DET
BPF DET
BPF DET
DET
RESET
Bias
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
17
19
20
21
22
23
24
µCON
INTER FACE
ROM
OSC
SOUND
MIX
GND
VDD
A-OUT
NAR
NC
BUSY
VPP
RST
CH
SD
SI
I4
NC
XT
XT
NC
CMD
NC
ST
I0
I1
I2
I3
NC
OSCILLATOR
1/2 VCC
AUTO
RESET
LPF1
MAIN
CONTROL
A/D
20KBIT
SRAM
LPF2
D/A
12 3 45 6 7
89
10
14 13 12 11
CLOCK
RESET
MO
MI
D1 DO0
DO1
VCC CLOCK REF OP2IN OP2OUT LPF2IN LPF2OUT
LPF1IN
LPF1OUT
OP1OUT
OP1IN
CC1 CC2
GND