Sharp CD-MPS777H Service Manual page 50

CD-MPS777H
SO302
FM FRONT END
FM ANTENNA
TERMINAL
AM LOOP
ANTENNA
CNP301
TRACKING
T303
ICT21
LC72723
RDS DECODER
8
X OUT MPX IN
XT21
4.332 MHz
X IN
9
10 7 13 14
CNP2
FROM CD SECTION
TAPE 1 L-CH
R-CH
P.B. HEAD
P.B.
TAPE 2
L-CH
REC./P.B.
R-CH
HEAD
AC BIAS
ERASE
HEAD
FE301
FM IF
AMP.
Q301
1 CF301
8
5
2
4 6 7 3
VT
AM AM BAND
COVERAGE
+B4
T306
IC302
QT21
LC72131
PLL
2
(TUNER)
VDDA
3
VDDD 11
VCC
15 16
SWITCHING
JK691
VIDEO OUT
CNS601 BI601
1
1
2
3
3
4
L(T1)
1
24
R(T1)
L(T2) 2
REC.
R(T2) 23
SWITCHING
Q101~
Q104
POP REDUCE 6 T1/T2
L REC REC
9
16
R REC
11
12
NOR/
15
HIGH
SWITCHING
Q105
Q106
SWITCHING
+B4
Q112
SWITCHING
Q111
L103
BIAS
OSC
Figure 4-3 BLOCK DIAGRAM (3/4)
CF302
450 kHz
T351
CF352
AM IF
1 2 4 5
FM/AM
OUT
24 23 21 7 18
L354
LOW PASS LOW
IC303
LA1832S
FM IF DET./
FM MPX./AM IF
X352
4.5 MHz
1 3 4 5
20 22 15 16 11
+B4 9
7 10 21
FM
Q360
JK690
GAME INPUT
L AUX
R
TAPE
VIDEO
TUNER
CD
+B4
13
P.B
L
4 PB
21
R
H/N
L REC
7
18
R
IC101
AN7345K
PLAYBACK AND RECORD/
10 ALC
PLAYBACK AMP.
T1/T2
19
Q114
Q113
+B4
Q109 Q110
+B4
SWITCHING BIAS
MOTOR
DRIVER
Q706
+B7 Q711
Q712
Q707
+B7
Q708
Q714~
Q717
SOLENOID
DRIVER
4 – 3
10.7 MHz
ZD351
5.1V
CF351 X351
456 kHz
9 8 13
17
14
L
15 R
PHASE
(FM/AM)
MPX IN
16 12
6
17
+B4
+B4
23
1
L 9 DI
2
CE
R 16
L
24
CLK
10 IC601
15
R
LC75341
L
11
AUDIO PROCESSOR
14
R 21 R
L
12
4 L
13
R
7 18 3
Q107
Q108
MUTING
LED
DRIVER
Q710 58
LED703
MICROCOMPUTER
TAPE
MECHANISM
ASS'Y
MICROCOMPUTER (2/2)
(SERIAL NO.401xxxxx)
(SERIAL NO.402xxxxx~)
+B4
-20dB
ATT
Q601 Q603
Q602 Q604
REC/PLAY
T1/T2
BIAS
JOG701
VOLUME
30 48
IC701
SYSTEM
(2/2)
IC701
SYSTEM
IXA008AW
IXA022AW