Sony HCD-GRX20 / HCD-RXD3 / MHC-GRX20 / MHC-RXD3 (serv.man2) Service Manual ▷ View online
HCD-GRX20/RXD3
17
17
HP901
PB
HEAD
TAPE B
HRP901
REC/PB
HEAD
TAPE A
R CH
R CH
R CH
PLAY/REC
CONTROL
CONTROL
Q203, 205
PLAY/REC
CONTROL
DRIVE
Q207
PLAY/REC
CONTROL
CONTROL
D201
L291
BIAS OSC
BIAS
OSC
OSC
Q251
HE901
ERASE
ERASE
HEAD
R CH
1
2
9
3
REC OUT
PB OUT
A/B
5
19
11
10
REC/PB
EQ AMP
IC201
TAPE A/B
Q213
MUTE
Q320
AMS
Q551,552
D202
: FM
: CD
• Signal Path
• RCH is omitted
C
CD
SECTION
TU L
ST IND
TU MUTE
DO1
Q401
MUTE
14
7
4
POWER AMP
IC401
SPEAKER
RELAY
DRIVE
Q403
Q405
1
2
6
IC402
RL401
SPEAKER
JK401
SCOR
SENS1
SQSO
XLAT
SQCK
CLK
DI
CLK
CE
STB
11
STB
21
CE
25
SCLK
27
SDA
TA
OUT
24
D
ATA
22
SQCK
20
XLA
T
23
SQSO
42
SENS1
4
SCOR
26
SDA
TA
IN
MUTE
DRIVE
Q411
MUTE
SWITCH
Q603,604
62
TU MUTE
28
FM ST IND
17
CTRL
63
SYSTEM MUTE
64
POWER SW
LED DRIVE
IC602
2
3
4
19
ALA
TCH
11
LED
DRIVE
DI
CLK
Q607,608
LED602-607
LED601
XT
AL
40
XT
AL
39
VR UP
52
X601
10MHz
VR DOWN
53
VR601
VOLUME
PIC UP
46
PIC DOWN
47
TRA
Y OPEN
50
TRA
Y CLOSE
51
TURN T
ABLE
49
DISC COUNT
48
A
B
S02
TRAY
OPEN/CLOSE
DET
S03
DISC
COUNTER
DET
S04
TURNTABLE
OPERATION
OPERATION
DET
S01
CD DECK
UP/DOWN
DET
KEY
MATRIX
S601-629
P2
P24
KI0
KI2
FLD601
FLD DISPLAY
SYSTEM CONTROLLER/
FLD DRIVER
IC601
+5.6V
REG
Q308
SITCHING
Q705
+5V
+12V
+7.5V
REG
Q702
CD +7.5V
+12V
REG
Q701
RECT
D705-708
P MUTE
CONT
Q703
AC OFF
DET
Q704
D713
D704
RECT
D701
-12V
IC401 B-
IC401 B+
-27V
REG
REG
Q705
-27V
T001
AC4.8V
AC4.8V
16
A
TUNER
SECTION
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
Q207
Q201
CE
CLK
DI
12
LOCK
MUTE
Q208,209
BIAS
SWITCH
Q252,253
6
Q351
TAPE (L)
4
TUNER (L)
3
CD (L)
2
B
CD
SECTION
CD L
LINE AMP
IC301
9
VOL OUT
BUS REGISTER
IC501
REC MUTE
13
A/B
11
BIAS
12
PLAY MUTE
14
DI
2
CLK
3
STB
1
DI
CLK
CONT
11
4
PLAY
5
SOL A
6
SOL B
SOL A
DRIVE
Q505,506
M+12V
SWITCH
Q501,502
M+12V
SOL B
DRIVE
Q503,504
SHIFT REGISTER
IC502
CK
2
S/L
1
QH
9
CLK
3
B REC FWD
5
PHOTO A
11
A MODE SW
13
A HALF
6
PHOTO B
12
B MODE SW
14
B HALF
MECHA
BLOCK
SFR501
MOTOR H/L
Q412
MUTE
D406
+5.6V
66 88
29 31
G1
G13
Q'S
10
DATA IN
DATA
SENS2
LOCK
13
CLOK
43
SENS2
37
AMS
12
10
S/L
9
DA
TA
IN
L
R
MD
JK301
R CH
MD (L)
5
: MD
1
REC OUT
AMP
Q306
Q302
4
B REC REV
Q320
Q551
MUTE
L
R
LINE OUT
JK301
R CH
D405
µ
CON B+
VCC
D602
D601
RESET
SWITCH
POWER
DOWN DET
Q601
Q602
2
3
RM601
REMOTE
CONTROL
RECEIVER
RESET
38
POWER DOWN
6
REMOTE
8
VCC
VCC
VCC
2
1 . 100 90
.
61
MD MUTE
32
V
ACS
36
SPEANA 4
SPEANA
35
SPEANA 3
34
SPEANA 2
33
SPEANA 1
13
10
8
5
.
.
(Page 18)
(Page 18)
(Page 18)
AC IN
F702
F703
SW401
AC IN
F702
GRX20 : AUS, RXD3 MODEL
AC VOLTAGE
GRX20:
E,SP,TW
MODELS
E,SP,TW
MODELS
GRX20 : E,SP,TW,MX,AR MODELS
220 – 240 V
110 – 120 V
• Abbreviation
AUS
AUS
: Australian model
SP
: Singapore model
MX
: Mexican model
AR
: Argentina model
TW
: Taiwan model
6-2. BLOCK DIAGRAMS
MAIN SECTION
HCD-GRX20/RXD3
18
18
TUNER/CD SECTION
CE
16
10
6
4
5
3
22
1
PLL
IC103
FM
XO
XI
CLK
DI
DO
CE
CLK
DI
DO
OPTICAL PICK-UP
BLOCK
APC
Q701
41
+5V
VC
LD
GND
A
C
B
E
F
FOCUS
COIL
F+
F
T+
T
TRACKING
COIL
36
37
42
39
38
51
APC
FOCUS PHASE
COMPENSATION
DECODER
SERIAL/
PARALLEL
CONVERTER
FE
AMP
RF
AMP
IIL
TTL
TTL
IIL
COMAND
VC
TRACKING PHASE
COMPENSATION
LD
PD
E
F
PD1
PD2
6
25
24
21
20
23
22
33
27
SENS1
RFO
FOK
C OUT
DATA
XLT
CLK
XRST
13
FEO
TAO
IC703
T.T/TRAY MOTOR
DRIVER
CD RF/SERVO
PROSSESOR
IC701 (1/2)
2
5
T IN
1
3
4
VR
PD
PD
18
17
19
20
6
F IN
22
SL IN
13
T.T F IN
F+
F
T+
T
SL+
SL
SP+
SP
M
M
MOTOR
M102
SLED
SLED
MOTOR
M101
SPINDOL
EFM
DEMO.
XRST
CLV
SERVO
DIGITAL
CLV
D/A
I/F
SUB CODE
PROSSESOR
CPU I/F
7
9
4
5
6
62
57
MDP
SENS
SCOR
SQSO
SQCK
CLOCK
D
ATA
CLK
XLT
DAT
SE
CIN
FOK
RF
SERIAL
I/F
PWM
67
70
71
NL
XTA1
XTA0
X701
MUTE
R-CH
CD DIGITAL
SIGNAL PROCESSOR
IC702
16
:FM
:CD
• SIGNAL PATH
14
7
8
4
2
1
6
10
DETECTOR
16
OSC
FM
75
Ω
AM
ANTENNA
JK101
3
8
RF
MIX
1
4
FM FRONT END
FE101
RF IF
AMP
Q101
CF101
10.7MHz
CF102
10.7MHz
L105
MW OSC
IF
G
L104
AM ANT
AM RF
AMP
Q108
MPX
16
FM IF
1
OSC
23
AFC
22
AM RF
21
FM
IF
FM OUT
19
FM
DET
AM/FM
IF BUFF
AM
OSC
AM
MIX
AM
DET
SMET
20
CF103
450kHz
MUTE
AGC
AM
IF
DECODER
13
L
14
R
4
2
T102
AM IFT
8
FM DET
CF104
10.7MHz
R CH
FM/AM MPX
IC102
FM
TUNED
LEVEL
PD1
18
X201
7.2MHz
FM B+
7
TUB+
+12V
Q114
ST MONO
12
15
AM
OSC/FMSD
24
B+
11
SD IN
9
ST/MONO
TU LED
6
12
IF IN
SD SPEED
7
ST IND
10
AM/FM
MUTE
Q117
TU L
ST IND
TU MUTE
DO1
A
MAIN
SECTION
D
5
LD
PD
F/T COIL
SL/SP MOTOR
14
15
30
31
T.T+
T.T
TR+
TR
M
M
MOTOR
T/T
MOTOR
TRAY
21
SP IN
29
TR F IN
12
T.T R IN
28
TR T IN
27
MUTE IN
IC705
IC701 (2/2)
6
7
REG
Q703
9
REG I
10
REG B
11
REG OUT
7
VCC
8
VCC
+5V
B+
XRST
6
SPEED
11
CONTROL
5
SWITCH
Q702
13
12
TR+
TR
7
14
T.T+
T.T
4
MUTE
3
CLOK
1
STB
IC704
MOTOR DRIVE
REG CONTROL
REG CONTROL
T.T/TRAY
35
18
11
10
12
13
14
79
21
18
SPOA
STOP
SWITCH
S05
8
XLA
T
CLOCK
GEN.
PWM
74
NR
MUTE
Q705,707
CD L
SCOR
SENS1
SQSO
XLAT
SQCK
DATA
CE
STB
CLK
DI
C
MAIN
SECTION
:AM
• RCH is omitted
SFR101
SENS2
LOCK
VT
TP9
2
DATA
26
SENS2
19
LOCK
16.9344MHz
2
L MUTE
53
D OUT
DIGITAL
OUT
PH701
B
MAIN
SECTION
CLK
DATA IN
Q108
D553
8
AM/FM
PH DET
11
(Page 17)
(Page 17)
(Page 17)
HCD-GRX20/RXD3
19
19
1
IC701
#£
(PLAY MODE)
2
IC701
2
(FEI)
(PLAY MODE)
3
IC701
$¶
(TEI)
(PLAY MODE)
4
IC703
@¶
(MDP)
5
IC702
$ª
(B) GFS
7
IC702
&¡
(XTAO)
Approx. 1.0Vp-p
Approx. 0.1Vp-p
Approx. 0.1Vp-p
2.4Vp-p
0.1
µ
sec/div
0.1V/div
7.7
µ
sec
5.7Vp-p
4.2336MHz
16.9344MHz
5.6Vp-p
(PLAY MODE)
8
IC601
$º
(X' TAL)
4.8Vp-p
10MHz
7.2MHz
3.6Vp-p
9
IC103
@™
(X OUT)
90.790kHz
52Vp-p
!º
L251
7
(PLAY MODE)
(REC MODE)
6
IC702
%™
(A) C4M
— BD SECTION —
— PANEL SECTION —
— MAIN SECTION —
•
WAVEFORM
For schematic diagrams.
Note:
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
¢
: internal component.
•
2
: nonflammable resistor.
•
1
: fusible resistor.
•
C
: panel designation.
•
U
: B+ Line.
•
V
: B– Line.
•
H
: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM
f
: AM
E
: PB (DECK A)
d
: PB (DECK B)
G
: REC (DECK B)
J
: CD
• Abbreviation
AUS
: Australian model
SP
: Singapore model
MX
: Mexican model
AR
: Argentina model
TW
: Taiwan model
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
For printed wiring boards.
Note:
Note:
• X
: parts extracted from the component side.
•
®
: Through hole.
•
¢
: internal component.
• b
: Pattern from the side which enables seeing.
B
This is omitted.
C
E
Q
• Indication of transistor.
HCD-GRX20/RXD3
20
20
6-3. PRINTED WIRING BOARD MAIN SECTION
Ref. No.
Location
D101
D-2
D102
D-2
D103
B-2
D104
B-2
D109
D-4
D110
B-8
D111
A-8
D201
E-9
D202
D-8
D203
E-11
D301
H-8
D302
C-10
D303
F-5
D304
G-4
D305
H-10
D306
H-10
D307
D-10
D501
F-10
D502
C-10
D551
D-12
D552
D-12
IC102
B-6
IC103
D-3
IC201
F-8
IC301
D-3
IC302
G-10
IC501
D-11
IC502
F-11
Q101
C-4
Q108
A-3
Q114
D-2
Q116
B-7
Q117
B-7
Q201
G-9
Q202
F-9
Q203
G-9
Q204
E-9
Q205
G-9
Q206
E-9
Q207
E-7
Q208
D-8
Q209
D-7
Q213
G-7
Q214
F-7
Q251
D-9
Q252
D-8
Q301
G-3
Q302
G-3
Q305
G-5
Q306
F-5
Q307
H-3
Q308
B-10
Q309
G-5
Q314
E-5
Q315
E-5
Q320
G-5
Q501
C-11
Q502
C-11
Q503
C-11
Q504
C-11
Q505
C-11
Q506
C-11
Q523
C-10
Q551
G-11
Q552
H-11
• Semiconductor
Location
• Refer to page 16 for Circit Boards Location. • Refer to page 19 for Note on Printed Wiring Board.
CN303
1
1
5
5
MAIN BOARD
H/P
BOARD
BOARD
1-674-559-
11
(11)
1-674-557-
11
(11)
JK101
ANTENNA
JK302
PHONES
TO
FRONT BOARD
CN601
(Page 21)
B
TO
AMPLIFIER BOARD
CN701
(Page 26)
D
TO
CD DECORD BOARD
CN704
(Page 28)
C
TO
DECK A
TO
DECK B
TO
DECK A/B
TO
FRONT BOARD
CN602
(Page 24)
A
FM
AM
(4144270040)
C360 C361
C365
1
1
1
11
1
11
1
1
12
13
24
1
1
1
8
9
16
3
5
2
10
16
15
8
9
16
2
4
8
1
12
13
24
1
4
5
8
G S D
1
11
12
22
1
10
11
20
1
8
1
19
11
2
10
20
TO
DECK B
(4144270010)
R
L
R
L
IN
MD
OUT
16
R368
R366
R365
R371
R373A
R369
R370
R372
R367
R326
R320
R336
R330
D304
R324
R316
R314
R318
Q302
Q301
Q307
C348
C349
C327
C340
C303
C304
C337
C312
C363
C341
C319
C320
C308
C310
C355
C345
C343
C313
C311
C309
D303
C344
C346
C342
C339
C306
C305
C354
Q315
Q309
Q306
Q305
Q320
Q314
C307
R329
R325
R233
R323
R263
R321
R310
R312
R311
R309
R322
R363
Q214
R319
R315
R313
R317
R328
R359
R361
R362
R364
R342
R360
R327
R337
R358
R333
R331
R335
R332
R334
R373
C347
C352
C301
C302
C100
10kHz
E,AUS,SP,
TW MODEL
TW MODEL
SW101
9kHz
C199
C197
C196
C152
C185
C155
R135
R171
R132
R112
R147
C177
R107
R104
R155
R115
C163
C120
C167
C146
C149
C379
R119
R136
R100
R173
R137
C108
C150
C117
C128
C137
R175
R140
L113
R139
R134
C148
C144
C194
C195
X101
C159
C143
C186
C158
L106
C157
C156
R301
R303
R302
R304
R117
R133
R105
R167
R106
C351
IC301
CN301
C331
CN701
Q114
D102
D101
D101
IC103
TP1
D109
FE101
CF101
CF102
CF103
SFR101
R118
R151
R124
R123
R120
R127
R129
R156
R172
R157
R131
R138
R339
R341
R504
R506
R505
R503
R248
R235
R236
R237
D307
D203
D501
C501
R507
R572
R518
R524
R522
R521
R501
R508
R560
R557
R558
R559
R519
R523
R520
R553
R551
R555
R554
R556
R352
R350
R347
D305
D306
R513
R241
R205
R346
R345
R207
R209
R223
R222
R232
R230
R224
R208
R206
R202
C206
C217
C208
C212
C204
R206A
R220
R244
R227
R228
R215
R221
R231
R213
C209
C211
C201
C203
C207
C205
R201
C213
Q213
R211
C227
C231
C202
C230
C234
C232
C228
C233
C215
C218
C219
R229
C229
C261
C322
R205A
R502
R255
R254
R515
R562
R561
R514
R526
R525
R511
R512
R141
L401
R142
R143
R130
R116
R126
R121
R128
IC102
C162
C187
C179
C114
C116
R114
R113
R113
Q101
L108
L105
L114
C113
Q108
TC102
L104
D104
D103
D103
T102
L109
C121
C122
C127
C135
C164
C107
C154
C189
C126
C118
C115
C161
C140
C141
C142
C132
C378
C324
C325
C322
C323
C251
C223
C254
C252
C226
C224
D201
C253
C255
C216
C262
R262
C221
C210
C225
C238
Q251
Q252
Q208
Q207
Q209
D202
R252
R225
R226
R212
R251
R253
R246
R264
R243
R247
R245
R214
R216
CN203
C555
C504
C505
C503
C571
C364
C333
C237
C556
C326
C553
C551
C554
Q551
Q552
C500
D302
D502
D552
D551
C139
C198
C123
C125
C124
C130
C131
C129
C151
C138
C188
TP9
C160
CF104
Q117
D110
D111
Q116
G
C193
Q308
Q505
Q506
Q503
Q504
Q502
Q501
Q523
CN602
CN601
CN303
IC501
R509
R527
R516
R517
R510
R219
R500
R528
C511
GND
C512
CN501
CN202
CN201
SFR501
Q205
Q203
Q201
R204
R203
G
IC502
C502
R349
R563
IC302
C334
C500A
D301
R261
IC201
R234
R239
L251
Q206
Q204
Q202
R242
R240
C214
C222
G
S
D
B
E
B
E
S
G
D
B
B
B
B
B
B
B
B
B
B
B
E
B
E
B
B
B
E
E
E
B
B
B
E
E
E
E
E
E
E
E
E
E
E
E
E
B
E
B
B
E
E
B
E
B
B
E
E
B
B
B
B
E
E
E
E
B
E
B
B
E
E
G
D
S
JK301
A
B
F
RXD3
MODEL
MODEL
RXD3
MODEL
MODEL
1
2
A
B
C
D
E
F
G
H
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