Sharp CD-MPS777H Service Manual page 60

CD-MPS777H
MAIN PWB-A1 (1/3)
A BI601
R-CH
1 1
A_GND
2
3
L-CH
3 4
CD_GND
4 5
A+5V +B
5 6
D_GND
6
7
+B
+8V
7 8
D+5V
+B
8 9
CNS601
+B
B
LD+7V
10
A_5V
+B
11
D+5V
+B
12
CD_GND
7
L-CH
14
A_GND
6
R-CH
15
C
CD_D_GND
16
CD_A_GND
17
AGC
26
D
E
TAPE1
PLAYBACK HEAD
1 1
2 2
3 3
F
CNP101
M_GND
ERASE HEAD
1
1
ERASE
2
2
T2_R2
3
3
A_GND
4
4
T2_R1
5
5
6 T2_L1
6
7
T2_L2
7
G TAPE2 CNP102
RECORD/
PLAYBACK HEAD
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 5-1.
1
R617
2.2K
R619
R616
330
2.2K
R618
330
C102
560P
T1_R
A_GND
T1_L
SWITCHING
C101
Q102
560P
KTC3200 GR
0V R104
2.2K
0.7V
0V
C104
0.7V
R106
180P(CH)
3.3K
0V
Q104
KTC3200 GR
SWITCHING
SWITCHING
C103
Q103
180P
KTC3200 GR
0V
0.7V
R105
0V 3.3K
0.7V
R103
2.2K
Q101
0V
KTC3200 GR
SWITCHING
2 3
Figure 6-5 SCHEMATIC DIAGRAM (5/10)
FM SIGNAL
PLAYBACK SIGNAL
RECORD SIGNAL
CD SIGNAL
VIDEO SIGNAL
AUDIO SIGNAL
C609
R605
1/50
10K
R613
390 R986
8.2K
Q601
C607
KTC3875 GR
R988
0.082
2.2K
R607
3.9K
R611
C611
2.2K
0.0022
C613
R610
C615
2.2K
R987 4.7/50
2.2K C617
C631
0.01
C621
1/50
R146 R147
10K
10K
9.3V
R148
8.6V
4.7K
SWITCHING
Q112
KTA1504 Y
9.3V
L
R112
15K
R102
1K C112
47/25
C114
0.039
R101
R118
100K
1K
R114
1K
R C108
330P
0V
24 23
0V
0V
1 2
L
C107 330P
R113
1K
IC101
AN7345K
PLAYBACK
0V C113
AND
0.039
0V
RECORD/
PLAYBACK
0V
R111
15K
4
6 – 5
R601 1K
R602
1K
IC601
C653
LC75341
220P
AUDIO PROCESSOR
1 24
DI CLK
CE
2 23
VDD
CCB
VREF
VSS
3 INTERFACE
+ 22
-
LOUT ROUT
4 21
C605
LBASS RBASS
5 20
0.1
LTRE
RTRE
6 19
1/50 RIN
LIN
7 18
LSEL0 RSEL0
8 17
-
1/50
L4 AUX R4
9 16
R3
C619 1/50
L3
DECK
10
15
L2 R2
TUNER
11 14
L1 CD R1
12 13
C623
1/50
R149
150
SWITCHING
Q113
KRC104 S
0V 3.4V
2 3
1
0V
1
3
0V
3.4V
2
R138
10K
Q114
KRC104 S
0.7V
SWITCHING 0V
Q108
KTC3875 GR
MUTING
R
R116
56
C116
560P
R124
6.8K
R120
3.9K
IC101
R128
C110 C126
AN7345K
5.6K
330P 22/50
22 21 20 19 18 17
Ð
Ð
+ +
112K
56K
Hich=T1 Hich=CHROME
56K
112K
+ Ð +
Ð
3 4 5 6 7 8
C125
C109
22/50
330P
R123
6.8K
C115
560P
R115
56
5
C601 C602
0.022
220/16
R603
1K
+B
C603
220/10
C610
C608
1/50 R604
0.082
10K
C606
R606
3.9K
0.1
C612
0.0022
C614
1/50
C616
4.7/50
C618
1/50
C620
1/50
C622
1/50
C624
1/50
REC_R
R139
10K
0.7V
Q107
0V
KTC3875 GR
MUTING
R158
220
16 15 14 13
0V
Q1
9 10 11 12
KTA
SW
0
C1
0.0
6