Deck Section - Sony HCD-GR3 Service Manual

HCD-GR3/RX30
— DECK SECTION —
RV301
PLAYBACK
IC301
LEVEL
DECK A
L
HP901
PB HEAD
R CH
(DECK A) R
RV302
PLAYBACK
IC302
LEVEL
DECK B
L
HRP901
REC/PB HEAD
(DECK B)
R R CH
IC304
3 1
P R
4
REC/PB
RV304
RECORD
BIAS
REC BIAS
ERASE BIAS
HE901
X
ERASE HEAD
RV380
+
TAPE SPEED
H
M901
REEL/ M
L
CAPSTAN Q380
– +MTR
– MTR
S1
(MOTOR)
DECK A
S2
(PLAY)
S4
(MOTOR)
S5
DECK B
(PLAY)
S7
(REC)
09
DECK A DECK B
S3 S6
TYPE2 TYPE 2
15 17
14 4 5
ABO C IN
A/B
120/70
70 PAS
A IN
2
BIN
3
120
DOL
DOLBY NR
HEAD AMP
IC303
RV303
REC LEVEL
10 REC OUT DOLBY
TYPE B
EQ IN
EQ OUT
13 11 BIAS SW
27 28 29
A +7.5V
Q353, 354
A 7.5V —
BIAS OSC
T350,Q351, 352
POWER ON/OFF
SWITCH
Q381, 382
– MTR
— 19 —
A/B
DOLBY ON/OFF
20
NR ON/OFF
PAS/DOL
24 PAS/DOL
PB OUT
8 PB L
Q450
Q301
LM ON/OFF
MUTE
REC/PB
21
PB
REC IN
6 REC L
BIAS ON/OFF
18 BIAS ON/OFF
RM ON/OFF 19 RM ON/OFF
RELAY REC/PB
D452, 453
• SIGNAL PATH
:PB (DECK A)
:PB (DECK B)
:REC (DECK B)
POWER ON/OFF
Q451
A STOP/PLAY
B STOP/PLAY
B REC
B
MAIN
SECTION
(Page 23)
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