Block Diagram - Tuner/Tape Deck Section - Sony HCD-GX8000 Service Manual

HCD-GX8000/RG77
Q Q
3 7 6 3 1 5 1 5 0
7-2. BLOCK DIAGRAM – TUNER/TAPE DECK Section –
TUNER UNIT
ANTENNA
FM ANT L-CH
FM 75Ω
ANT GND R-CH
AM ANT
AM ST-DOUT
ANT GND
ST-DIN
ST-CLK
ST-CE
ST-MUTE
TUNED
STEREO
L-CH
HP901
(PB)
R-CH R-CH
L-CH
3 1
R-CH
R-CH
R-CH R-CH
2
T E
L 1 3 9 4 2 2 9 6 5 1 3
HRPE901
(REC/PB/ERASE)
BIAS
R-CH
TRAP
RV354 RV304
REC BIAS (R) REC BIAS (L)
(DECK B) (DECK B)
BIAS OSC
T301
REC BIAS
SWITCH
Q301, 307, 310
BIAS OSC
Q302, 303
CAPSTAN
M901 M M
MOTOR DRIVE
(CAPSTAN)
Q396, 397
Q395
CAPSTAN MOTOR
CONTROL SWITCH
Q1001
RV1002 RV1001
TAPE SPEED TAPE SPEED
(NORMAL) (HIGH)
w w w
R-CH
DI
DO
CLK
CE
MUTING
TUNED
STEREO
DECK A/B SELECT SWITCH,
PB EQ AMP
IC301 (1/2)
AIN1
32
BIN1
34
REC/PB SWITCHING
IC302
4
REC EQ AMP, ALC
REC/PB
IC301 (2/2)
SWITCHING
Q304, 305
REC-
OUT1
21
11
TC +10V
69 25 23 27 22 21 3 2 68
65 BIAS
55 CAPM-CNT1
54 CAPM-H/L
56 57
S1003
(DECK A HALF)
D +3.3V
S1001 S1002 D +3.3V
x a o
(DECK A PLAY) (DECK B PLAY)
y
. i
http://www.xiaoyu163.com
MUTE
EQOUT1 TAI1
28 27
R-CH
15 13 12 14
Q Q
3 7 6
REC-IN1
EQ 24
RV301
ALC1
R-CH ALC 23
REC LEVEL (L)
(DECK B)
R-CH
61 67 66
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (2/4)
70 91 89
D +3.3V
ROTATION
S1006
DETECT SENSOR
(DECK B HALF)
(DECK A)
S1005 IC1001
u 1 6 3
(DECK A REC)
S1009
(DECK B REC)
24 24
http://www.xiaoyu163.com
2 4
8 9 9
PB-OUT1
26
LOW-PASS
BUFFER
FILTER
Q390, 398, 399
IC303
MUTING
Q306
MUTING CONTROL
SWITCH
Q389
3 1 5 1 5 0 8 9
58 53
90 51 52
TRIGGER TRIGGER
ROTATION PLUNGER DRIVE PLUNGER DRIVE
m
DETECT SENSOR (DECK A) (DECK B)
(DECK B) Q393, 394 Q391, 392
IC1002
c o
PM901
TRIGGER PLUNGER
TRIGGER PLUNGER
(DECK A)
.
2
8 9 9
TUNER
L-CH
B (Page 25)
TAPE
L-CH
C (Page 25)
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY (DECK A)
: TAPE PLAY (DECK B)
: REC
2 4 9 8 2 9 9
REC
L-CH
D
(Page 25)
PM902
(DECK B)