Main Block Diagrams - Sharp CD-MPX870W Service Manual

CD-MPX870W

[2] Main Block diagrams

11
NC
10
NO USE
9
8
+B4
7
6
5
4
3
2
1
CNP303
MOTOR
DRIVER
Q707~
+B3
Q709
Q703~
+B3
Q706
Q710
Q711
SOLENOID
DRIVER
CNS601
CNP2
FROM CD SECTION
TAPE 1 L-CH
R-CH
P.B. HEAD
REC.
P.B.
TAPE 2
L-CH
REC./P.B.
R-CH
HEAD
AC BIAS
ERASE
HEAD
CHASIS_GND
FM_DET
TUN_SM
R_CH
+9V
L_CH
CHASIS_GND
DO
CL
DI
CE
TAPE
MECHANISM
ASS'Y
JK691
VIDEO OUT
VIDEO
BI601
1
1
2
3
3
4
L(T1)
1
P.B.
24
R(T1)
L(T2)
2
23
R(T2)
SWITCHING
Q101~
Q104
6
POP REDUCE T1/T2
L REC. REC
9
16
R REC.
11
12
NOR/
15
HIGH T1/T2
SWITCHING
Q105
Q114
Q106
SWITCHING
+B4
Q112
SWITCHING
Q111
L103
SWITCHING
BIAS
OSC
Figure 4-2: MAIN BLOCK DIAGRAM (1/2)
TUNER
PACK
UNIT
RTUNSA007AWZZ
SPAN SELECTOR
NC
SW601
JK690
GAME INPUT
R AUX
L
TAPE
TUNER TUNER
CD
+B4
13
L
4 P.B.
21
R
H/N
L REC.
7
18
R
IC101
AN7345K
PLAYBACK AND RECORD/
10 ALC
PLAYBACK AMP.
19
Q113
+B4
Q109 Q110
+B4
BIAS
4 – 2
SPAN
+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
ILLUSION
LED
Q702 43
LED701
MICROCOMPUTER
-20dB
ATT
Q665
REC/PLAY
T1/T2
BIAS
JOG701
VOLUME
5
IC701
IXA101AW
SYSTEM
(2/2)