Main Block Diagrams - Sharp CD-ES700 Service Manual

CD-ES700/CD-ES77

[2] Main Block diagrams

AM
LOOP
FM FRONT END
ANTENNA
FM
BF301
B.P.F
T303
MOTOR
DRIVER
+B7 Q706
Q714~
+B7
Q717
SOLENOID
DRIVER
CNS601
1
2
FROM CD SECTION
CNP5
3
TAPE 1 L-CH
R-CH
P.B. HEAD
REC.
SWITCHING
P.B.
Q103-
TAPE 2
L-CH
Q104
R-CH
REC./P.B. HEAD
AC BIAS
Q105
Q106
BIAS Q111
ERASE
OSC
HEAD
IC301
TA7358AP
FM IF
6 T302
1
9
VCC
3 4 5 7 8
FM L312
T301
RF
FM
OSC
OSC BUFF
Q302
AM TRACKING
AM BAND
T306
COVERAGE
VT
IC302
LC72131
PLL(TUNER)
+B4
+B
FM
Q360
SWITCHING
TAPE
MECHANISM
ASS'Y
BI601
1
3
4
L(T1)
1
13 +B4
R(T1)
P.B
24
4 L P.B.
L(T2)
2
21 R
R(T2)
23
L NF
3
R NF
22
7
REC.
L
R
18
L REC.
REC
9
R REC. 16
8 L NF
17
R NF
ALC
12 10
T1/T2
PLAYBACK AND RECORD/
19
SWITCHING
SWITCHING
Q114
SWITCHING
Q112 Q113
SWITCHING
Q109
L103
Figure 4-2 BLOCK DIAGRAM (2/3)
IC303
LA1832S
FM IF DET./
FM MPX./AM IF
CF303
450 kHz
T351 CF352
AM IF
1 2 4 5 9
AM MIX
AM IF GND VCC
AM OSC OUT
24
FM/AM
FM/AM IF MPX.
OUT
21 18
23 7
X352
4.5 MHz
20 1 22 15 16 11 3 4
OSC
FM/AM MO/ST
9 10 21
7
FM
JK690
VIDEO GAME
INPUT
VIDEO
L L 9
AUX
R
R 16
IC601
10
L
TAPE
LC75341
R 15
AUDIO
L 11
TUNER
14
R
PROCESSOR
12
L
CD
R 13
7 8 17
IC101
AN7345K
PLAYBACK AMP.
BIAS
Q110
4 – 2
+B4
10.7 MHz
CF351
X351
456 kHz
8
17 13
FM VCO MO/ST
DET
L 14
R 1 5
MPXIN FM/AM
16 12
5 6
VDD 17
+B4
23
1
DI
2
CE
24
CLK
-20dB
ATT
21 R
Q601
4 L Q602
18 3
Q107 REC/PLAY
Q108
MUTING
T1/T2
BIAS