Sharp CD-MPX870 Service Manual page 49

DIAGRAMS
CHAPTER 4.
[1] Main Block diagrams
NC
NO USE
+B4
+B7
+B7
FROM CD SECTION
CNP5
TAPE 1 L-CH
R-CH
P.B. HEAD
TAPE 2
L-CH
R-CH
REC./P.B. HEAD
ERASE
HEAD
CHASIS_GND
11
FM_DET
10
9 TUN_SM
8 R_CH
+9V
7
6 L_CH
5 CHASIS_GND
4 DO
3 CL
2
DI
1
CE
CNP303
MOTOR
DRIVER
Q709~
Q711
TAPE
MECHANISM
ASS'Y
Q703~
Q708
SOLENOID
DRIVER
CNS601 BI601
1
1
2
3
3
4
L(T1)
1
R(T1)
24
L(T2)
2
REC.
R(T2)
23
SWITCHING
P.B.
Q103-
L NF
3
Q104
R NF
22
AC BIAS
L REC.
REC
9
R REC. 16
12
SWITCHING
SWITCHING
Q105
Q114
Q106
SWITCHING
Q112
BIAS Q111
L103
OSC
Figure 4-1: BLOCK DIAGRAM (1/3)
TUNER
PACK
UNIT
RTUNSA007AWZZ
SWITCHING
JK690
VIDEO GAME
INPUT
VIDEO
L
AUX
R
TUNER
13 +B4
P.B
4
L P.B.
21 R
7
REC.
L
R
18
8 L NF
1 7
R NF
IC101
AN7345K
10 ALC
T1/T2
PLAYBACK AND RECORD/
19
PLAYBACK AMP.
Q113
BIAS
SWITCHING
Q110
Q109
4 – 1
+B4
23
DI
9
L
CE
R 16
IC601
CLK
L 10
TAPE
LC75341
15
R
11 AUDIO
L
R 14
PROCESSOR
L 12
CD
13
R
7 8 17 18 3
Q107
Q108
MUTING
CD-MPX870
1
2
24
21 R
4 L
REC/PLAY
T1/T2
BIAS