Tape Deck Section - Sony HCD-VX550 Service Manual

HCD-VX550
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)
19 15 16 18 20 22 23 24 25
17
S1004
(DECK A 120/70)
S1008
(DECK B 120/70)
4
B+
(A+7V)
100 85 84 83 82 81 80 79 78
87 86
S1003
x a o
(DECK A HALF)
y
. i
D+5V
S1001 S1002
(DECK A PLAY) (DECK B PLAY)
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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
TRIGGER PLUNGER
DECK A
TRIGGER
ROTATION ROTATION
PLUNGER DRIVE
DETECT SENSOR DETECT SENSOR
(DECK A)
(DECK A) (DECK B)
IC1001 IC1002 Q333, 334
77 91
90
SYSTEM CONTROLLER
IC501 (2/4)
88 89
S1006
(DECK B HALF)
u 1 6 3
S1005
(DECK A REC)
S1009
(DECK B REC)
20 20
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2 4
8 9 9
PB OUT (L)
PB-L
40 F
(Page 21)
EQ OUT
(L)
REC
36
EQ AMP
38
REC-L
G
(Page 21)
6 3 1 5 1 5 0 8 9
RV1001
TAPE SPEED
(HIGH)
TRIGGER PLUNGER
DECK B
TRIGGER
PLUNGER DRIVE Q335
(DECK B)
Q331, 332
73 72 76
CAPM-CNT1
CAPM-CNT2
m
c o
.
2
8 9 9
• SIGNAL PATH
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
2 4 9 8 2 9 9
RV1002
TAPE SPEED
(NORMAL)
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
CAPSTAN
75
M1
M
MOTOR DRIVE
(CAPSTAN)
74
Q336 – 343