Read Sony HCD-GRX2 / HCD-RX33 / MHC-GRX2 / MHC-RX33 Service Manual online
HCD-GRX2/RX33
5-2. BLOCK DIAGRAMS
— DECK SECTION —
— 15 —
— 16 —
HP901
PB
HEAD
TAPE B
HRP901
REC/PB
REC/PB
HEAD
TAPE A
R CH
R CH
R CH
PLAY/REC
CONTROL
CONTROL
Q203, 205
PLAY/REC
CONTROL
CONTROL
DRIVE
Q207
MUTE
SWITCH
Q216
TAPE A/B
SWITCH
Q213
PLAY/REC
CONTROL
CONTROL
D209
L201
BIAS OSC
BIAS
OSC
OSC
Q218
HE901
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
Q209
MUTE
TAPE A
SWITCH
Q214
Q211
Q220
REC SWITCH
MUTE
CONTROL
Q
Q217
D205
D203
D202
D212
D210
D211
D210
S201
A DECK
S202
B DECK
S203
PLAY
M
D207
D206
M901
REC/CAPSTAN
MOTOR
TAPE SPEED
SFR201
+11.5V
D208
SW201
REC/PLAY
PLAY
REC
: FM
: CD
• Signal Path
• RCH is omitted
B
CD
SECTION
TU L
11
9
Q301
10
ST IND
TU MUTE
DO
CD L
12
CONTROL
3
2
1
CLK
14
DI
15
CE
13
SELECTOR
IC301
CLK
DI
CE
LINE AMP
IC302
7
5
BASS BOOST
SWITCH
Q307
Q303
MUTE
13
2
7
4
POWER AMP
IC501
SPEAKER
RELAY
DRIVE
Q551
Q553
1
2
6
IC502
IC502
RL501
R CH
SPEAKER
PHONES
JK501
JK303
SCOR
SENS
SQSO
XLAT
SQCK
DATA
DI
CLK
CE
STB
26
STB
21
CE
22
CLK
23
DI
18
D
ATA
17
SQCK
20
XLA
T
19
SQSO
51
SENS
38
SCOR
MUTE
DRIVE
Q583,584
Q604
MUTE
MUTE
SWITCH
Q603
CD SYNC
SWITCH
Q208
4
TU MUTE
24
DI1
48
SYS REC
7
DBFB
3
SYSTEM MUTE
2
POWER
LED DRIVE
IC602
2
3
4
36
ALA
TCH
11
13
LED
DRIVE
DI
CLK
Q208
Q605,606
RESET
SWITCH
POWER
DOWN DET
Q601
10
RESET
15
POWER DOWN
Q602
LED602
LED601
Q602
D602
X2
11
X1
12
VR UP
44
X601
4.19MHz
VR DOWN
45
VR601
ENCODER
PIC UP
55
PIC DOWN
56
TRA
Y
OPEN
59
TRA
Y
CLOSE
60
TURN T
ABLE
58
DISC COUNT
57
A
B
S02
TRAY
OPEN/CLOSE
DET
S03
DISC
COUNTER
DET
S04
TURNTABLE
OPERATION
OPERATION
DET
S01
CD DECK
UP/DOWN
DET
3
2
Q601
RM601
REMOTE
CONTROL
RECEIVER
39
REMOTE
64
78
KEY
MATRIX
S601-623
P1
P21
100
86
G1
G15
. 81
85
33
29
KI0
KI4
FLD601
FLD DISPLAY
SYSTEM CONTROLLER/
FLD DRIVER
IC601
+5.6V
REG
Q404
SITCHING
Q406,407
+11.5V
(SWITCHED)
+11.5V
FILTER
Q402
+7.9V
REG
Q403
+7.9V
+12V
REG
REG
Q401
RECT
D405-408
MUTE
Q585,586
P MUTE
CONT
Q409
AC OFF
DET
Q410
D417
D416
D553
RECT
D401
D409
-12V
-30V
+30V
-27V
REG
Q408
-27V
VOLTAGE
DOUBLER
D414,415
AC
IN
PT001
AC3.4V
AC3.4V
12
16
A
TUNER
SECTION
: PB (DECK A)
: PB (DECK B)
: REC (DECK A)
Q207
Q201
CE
CLK
DI
COUNT
FOK
52
FOK
53
COUNT
47
FM ST
IND
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