Block Diagram - Tape Deck Section - Sony HCD-CP2 Service Manual

HCD-CP2
7-2. BLOCK DIAGRAM – TAPE DECK Section –
HP101
(PLAYBACK)
L-CH
R-CH R-CH
HRPE101 (1/2)
(RECORD/PLAYBACK)
L-CH
R-CH R-CH
REC/PB SWITCHING
3 1
R-CH R-CH
2
R-CH
RV341
RV441
REC BIAS (R) REC BIAS (L)
(DECK B) (DECK B)
REC BIAS
BIAS OSC
HRPE101 (2/2)
T621
(ERASE)
BIAS OSC
Q621, 622
DECK PROCESS
DECK A/B SELECT, PB/REC EQ AMP,
DOLBY NR AMP
IC401
70
PB EQ AMP
AIN (L)
2
(DECK A)
BIN (L)
IC611
4
120
RV311
PB LEVEL (L) R-CH
(DECK A)
NORM
25
BIAS
CROM
24
CONTROL
METAL
CIRCUIT
23
PB EQ AMP
(DECK B)
IC601
RV301
PB LEVEL (L)
(DECK B)
13 15 12 20 16 17 18 19 14
S1004
IC602
(DECK A 120/70)
S1008
(DECK B 120/70)
4
C331, L331
BIAS
TRAP
B+
SWITCH
(A+8V)
Q623
68 1 75 7 79 78 8 80
15 18
S1003
(DECK A HALF)
05
D+5V
S1001 S1002
(DECK A PLAY) (DECK B PLAY)
DOLBY PASS
DOLBY NR
AMP
CIRCUIT
+
L.P.F.
EQ AMP
BUFFER
MAOUT
28 6 9 10
27
MSIN
RV301
AMS
REC LEVEL (L)
CIRCUIT
(DECK B)
MSOUT
21
D822
LED DEIVE
HI-SPEED
Q816
DUBBING
ROTATION ROTATION
DETECT SENSOR DETECT SENSOR
(DECK A) (DECK B)
Q1001 Q1002
3 16 17
SYSTEM CONTROLLER
IC802 (2/4)
14 39
S1006
(DECK B HALF)
S1005
(DECK A REC)
S1009
(DECK B REC)
D+5V
20 20
PBOUT (L)
PB-L
B
8
(Page 21)
EQOUT
(L)
REC
11
REC-L
C
(Page 21)
REC/PB
D
(Page 22)
RV652
TAPE SPEED
(HIGH)
Q406
CAPSTAN MOTOR
CONTROL SWITCH
Q651
MOTOR CONTROL
10 9
13 12 11
TRIGGER MOTOR DRIVE
IN1
5
IN2
6
TRIGGER
MOTOR CONTROL
Q408, 409
• SIGNAL PATH
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
R-CH : Same as L-CH
RV651
TAPE SPEED
(NORMAL)
M1
M
(CAPSTAN)
CAPSTAN
Q403, 407
+12V (M)
IC402
OUT1
MOTOR 2 M2
M
OUT2
DRIVE (TRIGGER)
10
VZ
4