Block Diagrams; Main Section - Sony HCD-GRX20 Service Manual

6-2. BLOCK DIAGRAMS

MAIN SECTION

CD L
B
CD
SECTION
JK301
(Page 18)
L
MD
R R CH
TAPE B
HP901
PB
HEAD
R CH R CH
TAPE A
HRP901
REC/PB
HEAD
R CH
L291
BIAS OSC
R CH
HE901
ERASE
Q251
HEAD
BIAS
OSC
Q203, 205 Q201
Q252,253
PLAY/REC PLAY/REC
CONTROL CONTROL
BIAS
SWITCH
Q207 Q207
PLAY/REC
CONTROL
DRIVE
Q208,209
D202 D201
MUTE
TU L
A
ST IND
TU MUTE
TUNER
SECTION DO1
(Page 18)
DATA IN
SCOR
SENS1
SQSO
SENS2
XLAT
C
SQCK
CD
CLK
SECTION
DATA
(Page 18)
LOCK
DI
CLK
CE
STB
11 21 25 27 12 24 13 22 20 43 23 42 4
16
39 40 52 53
X601
10MHz A
VR601
VOLUME
REC/PB
EQ AMP
IC201
3
PB OUT
1
5
TAPE A/B
A/B 19
2
REC OUT Q351
11
9
10 Q213
MUTE
6
AMS
Q551,552
LED DRIVE
IC602
LED602-607
13
.
10
8
.
5
DI
2
CLK
3
Q607,608
4 LED601
11
LED
DRIVE
12
26 62 28 37 19 17
SYSTEM CONTROLLER/
FLD DRIVER
IC601
46 47 50 51 48 49
B
S01 S02 S03 S04
CD DECK TRAY DISC TURNTABLE
UP/DOWN OPEN/CLOSE COUNTER OPERATION
DET DET DET DET
LINE AMP
IC301
2 CD (L)
5 MD (L)
VOL OUT 9
4 TAPE (L) Q306
REC OUT AMP
1
3 TUNER (L)
Q320
11 CONT
Q302
MECHA
M+12V
Q501,502 BLOCK
BUS REGISTER
IC501
M+12V
SWITCH
13 REC MUTE
11 A/B PLAY 4
12 BIAS
Q505,506
14 PLAY MUTE
SOL A
SOL A 5
10 Q'S DRIVE
1 Q503,504
STB
DI
SOL B
2 DI SOL B 6
DRIVE
CLK
3 CLK
SHIFT REGISTER
IC502
CLK
2
CK B REC FWD 3
B REC REV 4
1 S/L
PHOTO A 5
PHOTO B 6
9 QH
A MODE SW 11
B MODE SW 12
A HALF 13
B HALF 14
SFR501
MOTOR H/L
SPEANA
10 9 33 34 35 36 32
KI0 KI2
29 31 38 6 8
RM601
2
Q602 Q601
KEY
REMOTE
RESET POWER
MATRIX CONTROL
SWITCH DOWN DET
RECEIVER
S601-629
3
VCC VCC
VCC
17 17
Q551
Q320
POWER AMP
MUTE
IC401
14 7
Q401
MUTE
Q411 Q412
MUTE
MUTE
DRIVE
Q403
Q405
Q603,604 Q704
MUTE AC OFF
SWITCH DET
D713 D405
Q703
P MUTE
CONT
D704
IC401 B+
IC401 B-
-12V
Q705
-27V
-27V
REG
Q701
+12V
+12V
REG
Q702
+7.5V
CD +7.5V
REG
Q308
+5.6V
+5.6V
REG
D602
µCON B+
D601
VCC
Q705
+5V SITCHING
61 64 63
P2 P24 G1 G13
2 1 . 100 90 .
66 88
FLD601
FLD DISPLAY
HCD-GRX20/RXD3
JK301
L
LINE OUT
R CH
R
RL401
JK401
SPEAKER
IC402
1
SPEAKER
RELAY 6
DRIVE
2
4
D406
GRX20 : AUS, RXD3 MODEL
D701
T001
F702
RECT
AC IN
F702
AC IN
D705-708
RECT
F703
SW401
AC4.8V
AC VOLTAGE
GRX20:
AC4.8V E,SP,TW 220 – 240 V
MODELS
110 – 120 V
GRX20 : E,SP,TW,MX,AR MODELS
• RCH is omitted
• Signal Path
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: FM
: CD
: MD
• Abbreviation
AUS : Australian model
SP : Singapore model
MX : Mexican model
AR : Argentina model
TW : Taiwan model