Tape Deck Section - Sony HTC-V5550 Service Manual

HTC-V5550
Q Q
3 7 6 3 1 5 1 5 0
— TAPE DECK SECTION —
HP101
(PLAYBACK)
PB EQ AMP
L-CH (DECK A)
IC611
R-CH R-CH
HRPE101 (1/2)
(RECORD/PLAYBACK)
PB EQ AMP
(DECK B)
L-CH
IC601
R-CH R-CH
REC/PB SWITCHING
IC602
3 1
R-CH R-CH
T E
L 1 3 9 4 2 2 9 6 5 1 3
2
C331, L331
BIAS
TRAP
R-CH
RV341
RV441
REC BIAS (R) REC BIAS (L)
(DECK B) (DECK B)
REC BIAS
SWITCH
Q623
BIAS OSC
HRPE101 (2/2)
T621
(ERASE)
BIAS OSC
Q621, 622
w w w
16
DECK PROCESS
DECK A/B SELECT, PB/REC EQ AMP,
DOLBY NR AMP, ALC, AMS
IC301
70
AIN (L)
48
BIN (L)
46
120
RV311
PB LEVEL (L) R-CH
(DECK A)
BIAS (N)
33
BIAS
BIAS (C)
32
CONTROL
BIAS (M)
CIRCUIT
31
RV301
PB LEVEL (L)
(DECK B)
17 19 15 16 18 20 22 23 24 25
S1004
(DECK A 120/70)
S1008
(DECK B 120/70)
4
B+
(A+7V)
97 99 94 93 92 90 89 88 87
95 96
S1003
(A HALF)
S1001 S1002
x (A PLAY) a o (B PLAY)
y
. i
— 21 —
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DOLBY PASS
DOLBY NR
AMP
CIRCUIT
+
L.P.F. ALC
BUFFER
MAOUT
28 43 44 35 34 39
27
MSIN
RV301
AMS
REC LEVEL (L)
CIRCUIT
(DECK B)
MSOUT
26
Q Q
3 7 6
TRIGGER PLUNGER
DECK A
ROTATION ROTATION TRIGGER
DETECT SENSOR DETECT SENSOR PLUNGER DRIVE
(DECK A) (DECK B) (DECK A)
IC1001 IC1002 Q333, 334
31 26 27
SYSTEM CONTROLLER
IC101 (2/3)
98 28
S1006
(B HALF)
S1005
(REC A)
u 1 6 3
S1009
(REC B)
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2 4
8 9 9
PB OUT (L)
PB-L
G
40
(Page 23)
EQ OUT
(L)
REC
36
EQ AMP
38
REC-L
H
(Page 23)
3 1 5 1 5 0 8 9
RV1001
TAPE SPEED
(HIGH)
SL1 SL2
TRIGGER PLUNGER
DECK B
TRIGGER
Q335
PLUNGER DRIVE
(DECK B)
Q331, 332
84 83 82
CAPM-ON/OFF(+)
CAPM-EMG(+)
CAPM-EMG(–)
CAPM-ON/OFF(–)
m
c o
.
— 22 —
2
8 9 9
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC
2 4 9 8 2 9 9
RV1002
TAPE SPEED
(NORMAL)
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
CAPSTAN
100
MOTOR DRIVE
1
Q336 – 339
M1
M
(CAPSTAN)
CAPSTAN
85
MOTOR DRIVE
86
Q340 – 343