Deck Section - Sony HCD-DR8AV Service Manual

DECK SECTION

RV311
PLAYBACK
IC611
LEVEL
DECK A
L
HP101
PB HEAD
R CH
(DECK A)
R
RV301
PLAYBACK
IC601
LEVEL
DECK B
L
REC/PB HEAD
(DECK B)
R R CH
3 1
IC602
R
P
4
HRPE101
REC/PB
RV341
REC
BIAS
REC BIAS
BIAS OSC
ERASE BIAS
T621, Q621, 622
ERASE HEAD
• R CH : Same as L ch
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
16
S1004 S1008
B CrO
A CrO 2 2
16 17 19 28 27
PB-A/B A 120/70 B NORM/CROM/METAL
MS
70
PAS
A IN
48
B IN
46
120
DOL
DOLBY NR
DOLBY NR
IC301
RV301
REC LEVEL
DOLBY
RECOUT
39
TYPE B
EQOUT EQIN
36 38 BIAS SW
32 33
+7.5V
Q623
M1
CAPSTAN
M
MOTOR
• PLUNGER SOLENOID is supplied
as the MECHANICAL BLOCK ASSY.
A DECK/
B DECK
PLUNGER
— 23 —
PB A/B
MS OUT
CN301
1
R CH
26
3
PB OUT
40 TC PB L
LM ON/OFF
LM ON/OFF 25
NORM/HIGH
NORM/HIGH 18
NR ON/OFF
NR ON/OFF 23
REC/PB/PASS
24 REC/PB/PASS
PB
LIN
43 TC REC L
BIAS ON/OFF
20 BIAS ON/OFF
RM ON/OFF 22 RM ON/OFF
ALC ON/OFF
ALC ON/OFF 15
RELAY
CAPM CNT1
CAP MOTOR
CONTROL CAPM CNT2
Q336-343
SPEED
SWITCH
CONTROL
CAP M H / L
Q335
Q1001
RV1002 RV1001
REEL
NORMAL HIGH
DETECT
A SHUT
SPEED SPEED
IC1001
REEL
DETECT B SHUT
IC1002
S1001 (A PLAY)
+5V A PLAY
S1002 (B PLAY)
B PLAY
S1003
A HALF
(A HALF)
+5V
+5V
S1005
(REC A)
S1006 B HALF/REC A/REC B
(B HALF)
S1009
(REC B)
TRIGGER
B TRIG
MOTOR
CONTROL
A TRIG
Q331-334
HCD-DR8AV/W900AV
B
MAIN
SECTION
(Page 25,
26, 27)
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