Deck Section - Sony HCD-V8900 Service Manual

HCD-V8900/V8900AV
Q Q
3 7 6 3 1 5 1 5 0
– 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
P R
4
HRPE101
REC/PB
RV341
REC
BIAS
REC BIAS
T E
ERASE BIAS
L 1 3 9 4 2 2 9 6 5 1 3
ERASE HEAD X
• R CH : Same as L ch
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
09
w w w
S1004 S1008
B CrO
A CrO 2 2
12
13 15
A 120/70
PB-A/B B 120/70
70
PAS
A IN
2
B IN
4
120
DOL
DOLBY NR
DECK PROCESS
IC401
RV301
REC LEVEL
DOLBY
RECOUT
10
TYPE B
EQOUT EQIN
11 10 BIAS SW
24 25
+7.5V
Q623, 901
M1
CAPSTAN
MOTOR
BIAS OSC
T621, Q621, 622
M2
TRIGGER
MOTOR
x a o
. i
– 23 –
http://www.xiaoyu163.com
PB A/B
CN403
3
R CH
1
PB OUT
8 PB L
LM ON/
20 LM ON/OFF
OFF
NORM/
HIGH 14
NR ON/
18 NR ON/OFF
OFF
19 REC/PB/PASS
PB
RIN
6 REC L
BIAS ON/OFF
16 BIAS ON/OFF
RM ON/OFF 17 RM ON/OFF
RELAY REC/PB
CAP M SWITCH
CAP M ON/OFF
Q405, 407
SPEED
SWITCH
CONTROL CAP M H / L
M
Q406
Q651
Q Q
3 7 6
RV652
RV651
REEL
NORMAL HIGH
DETECT
A SHUT
SPEED SPEED
Q1001
REEL
DETECT B SHUT
Q1002
S1001 (A PLAY)
+5V
A PLAY
S1002 (B PLAY)
B PLAY
S1003
A HALF
(A HALF)
+5V
S1005
(REC A)
S1006
(B HALF)
BHALF
S1009
(REC B)
SWITCH
VZ 4 TRIG H / L
Q408, 409
2
OUT1
TRIGGER
MOTOR
M IN2 6
B TRIG
DRIVE
IC402
10 OUT2
u 1 6 3
y
IN1 5 A TRIG
http://www.xiaoyu163.com
2 4
8 9 9
NORM/HIGH
B
3 1 5 1 5 0 8 9
MAIN
SECTION
(Page 25)
m
c o
.
– 24 –
2
8 9 9
2 4 9 8 2 9 9