Block Diagram - Tape Deck Section - Sony HCD-XB66 Service Manual

7-3. BLOCK DIAGRAM – 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
2
C331, L331
BIAS
TRAP
R-CH
RV441 RV341
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
05
DECK PROCESS
DECK A/B SELECT, PB/REC EQ AMP,
DOLBY NR AMP
IC1501
70
AIN (L)
2
BIN (L)
4
120
RV311
+
PB LEVEL (L) R-CH
(DECK A)
L.P.F.
NORM
BUFFER
25
BIAS
CROM
24
CONTROL MAOUT
METAL
CIRCUIT
23 28
27
MSIN
RV301
AMS
PB LEVEL (L)
CIRCUIT
(DECK B)
MSOUT
13 15 12 14 16 17 18 19 20 21
S1004
(DECK A 120/70)
S1008
(DECK B 120/70)
4
B+
(A+7V)
96 87 88 89 90 91 92 93
94 95 97
S1003
(DECK A HALF)
D+5V
S1001 S1002
(DECK A PLAY) (DECK B PLAY)
– 29 –
DOLBY PASS
PB OUT (L)
DOLBY NR
AMP
CIRCUIT
EQ OUT
REC
EQ AMP
6 9 10
RV1501
REC LEVEL (L)
(DECK B)
ROTATION ROTATION
DETECT SENSOR DETECT SENSOR
(DECK A) (DECK B)
Q1001 Q1002
26 27
SYSTEM CONTROLLER
IC301 (2/3)
28
S1006
(DECK B HALF)
S1005
(DECK A REC)
S1009
(DECK B REC)
D+5V
• SIGNAL PATH
PB-L
B
8
(Page 31)
(L)
11
REC-L
C
(Page 32)
RV652 RV651
TAPE SPEED TAPE SPEED
(HIGH) (NORMAL)
Q1533
CAPSTAN MOTOR
CONTROL SWITCH
Q651
CAPSTAN
MOTOR CONTROL
Q1531, 1532
82 86
85 84 83
TRIGGER MOTOR DRIVE
IC1502
IN1 OUT1
5 MOTOR
IN2 OUT2
DRIVE
6
VZ
4
TRIGGER
MOTOR CONTROL
Q1534, 1535
– 30 –
HCD-XB66/XB660
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
+12V (M)
M1
M
(CAPSTAN)
2
M2
M
(TRIGGER)
10