Read Sony HCD-VM330AV Service Manual online
HCD-VM330AV
23
23
7-3.
BLOCK DIAGRAM – TUNER/TAPE DECK Section –
FM ANT
ANT GND
AM ANT
ANT GND
DO
TU-CLK
TU-CE
TUNED
L-CH
R-CH
DI
TUNER PACK
FM 75
Ω
AM
R-CH
78
TU-DI
80
TU-DO
79
TU-CLK
77
TU-CE
76
TU-TUNED
DI
DO
CLK
CE
TUNED
DO
CLK
CE
TUNED
DI
R-CH
L-CH
R-CH
L-CH
R-CH
R-CH
HP101
(PLAY)
HRPE101
(REC/PLAY/ERASE)
1
3
2
4
R-CH
R-CH
REC/PB SWITCHING
IC402
R-CH
BIAS OSC
T401
T403
BIAS
TRAP
C429, R429
REC BIAS
SWITCH
Q402, 403
AU +9V
BIAS OSC
Q401
TRIGGER
PLUNGER DRIVE
(DECK B)
Q385, 386
TRIGGER PLUNGER
(DECK B)
59
A-TRIG
TRIGGER
PLUNGER DRIVE
(DECK A)
Q383, 384
TRIGGER PLUNGER
(DECK A)
60
B-TRIG
89
B-SHUT
97
A-SHUT
TAPE MECHANISM
DECK BLOCK
(2/2)
23
24
B IN-L
A IN-L
19
A/B SW
R-CH
PB
AMP
20
PB-L
6
MIX
OUT
+
R-CH
PB AMP
IC401 (1/2)
70
DVD
69
TAPE
1
2
4
3
5
13
INPUT SELECT
SWITCH
IC306
R-CH
R-CH
68
PB-MUTE
50
REC-MUTE
14
REC
OUT-L
OUT-L
REC
IN-L
REC
AMP
REC AMP
IC401 (2/2)
16
MUTING
Q112
R-CH
67
AMS
53
PB-A/B
54
PB/REC
MUTING
Q102
AMS DET
Q404, 405
R-CH
R-CH
MUTING
Q101
H
(Page 24)
TAPE
L-CH
G
(Page 24)
5.1CH
F
(Page 24)
TUNER
L-CH
J
(Page 24)
REC
L-CH
58 MO-ON
CAPSTAN
MOTOR DRIVE
Q381, 382
MOTOR
+12V
SENSOR B+
M
M
M1
(CAPSTAN)
56
B-PLAY
61
A-PLAY
(DECK B PLAY)
TAPE MECHANISM
DECK BLOCK
(1/2)
(DECK A PLAY)
66
A-HALF
(DECK A HALF)
90
B-HALF
(DECK B HALF)
(DECK B REC)
(DECK A REC)
SYSTEM CONTROLLER
IC801 (2/5)
• SIGNAL PATH
• R-ch is omitted due to same as L-ch.
: TUNER
: TAPE PLAY (DECK A)
: REC
: 5.1CH INPUT
: TAPE PLAY (DECK B)
ROTATION
DETECT SENSOR
(DECK A)
ROTATION
DETECT SENSOR
(DECK B)
ANTENNA
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