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Sharp XL-3000 Service Manual Page 27

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– 27 –
XL-3000/3000C
7
8 9 10 11 12
4.8V
4.8V
0V
0V
4.8V
4.8V
4.8V
4.8V
0V
0V
0V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
10.2V
5V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
4.8V
0V
0V
0.14V
0.14V
4.8V
9.6V
4.8V
4.8V
4.8V
4.8V
4.8V
+B
+B
+B
+B
+B
4.9V
5.6V
+B
0.6V
0.6V
0V
0V
0V
0.1V
0.1V
0.1V
0.1V
0V
0V
20.6V
20.2V
20.2V
21.8V
21.8V
–21.7V
–18.9V
0V
–B
+B
+B
+B
+B
+B
0.6V
0.6V
0.6V
–21.7V
0.6V
0.6V
0.6V
1.2V
0V
+B
+B
0V
0V
4.44V
0V
5V
5V
CD SIGNAL
15 14 13 12 11 10
9 8 7 6 5 4 2 1 3
IN2
NF2
GND
–VCC
PRE
–VE2
+VE2
–VCC
+VCC
–VE1
+VE1
BIAS
+VCC
PRE
N.C.
NF1
IN1
16 17 18 19 20 21 22 23 24 25 26 27 28
15 14 13 12 11 10
9 8 7 6 5 4 3 1
29 30
2
CL
VDD
VREF
ROUT
RBS2
RBS1
RTRE
RIN
RSL0
R4
R3
R2
R1 L1
L2
L3
L4
LSL0
LIN
LTRE
LBS1
LBS2
LOUT
TEST
VSS
CE
DI
1 2 3 4 5 6 7 8 9
10 11 12 13
SD
STEREO
DO
CE
DI
CL
CD +B
P_MUTE
P_STB
D_GND
5V
A_24V
SURROUND
1
2
G
D
S
3
AUX L
AUX R
TUN R
CD R
AUX L
CD L
TUN L
L
R
A GND
–B
+B
M_GND
M_12V
A_GND
CD_L
CD_R
CD_6R2V
CD_GND
7
6
4
3
2
1
8
5
CE
DI
CL
HEADPHONES
CHASSIS
GND
L-CH
R-CH
1
2
3
4
5
9
10
8
7
6
5
4 3 2 1
CNS703
P33 12-F,G
FROM
DISPLAY PWB-A3
MAIN PWB-A1(1/2)
TO
MAIN PWB-A1(2/2)
P28 1-F
P29 11-C,D
SPEAKER TERMINAL
FUNCTION/
VOLUME
EQUALIZER
SURROUND
CONTROL
POWER AMP.
FM SIGNAL
+
+
C432
220P
C431
220P
C433
220P
CNP703
R662
330
R661
330
SO601
R120
1K
R121
10K
R122
1K
R124
47K
R104
56K
R108
1K
R106
470
R425 1K
R424 1K
0
4
5
0
C906
100/10
D
902
6
BSB
9
03
99 GR
C905
100/10
IC601
STK40202
C416
10/16
C401
10/16
R114
100
R113
100
C120
220/16
R123
10K
C102
10/50
C104
3P
C106
10/50
R110
1K
C112
10/50
C111
10/50
C603
33/16
R607
6.8K
R604
10K
R603
10K
R609
1K
R608
1K
Q602
KTC3199 GR
Q601
KTC3199 GR
R634
3.3K
R119
33K
R118
47K
Q104
KTC3200 GR
Q102
KTA1268 GR
J601
L603
10µH
R417
1K
R637
4.7
R635
27K
R636
27K
L601
3µH
C213
4.7/50
C403
10/16
C407
10/16
C408
10/16
C404
10/16
C402
10/16
C216
1/50
C204
1/50
C208
100/16
C212
0.0033
C214
4.7/50
IC201
KIA4558P
R207
47K
D201
1N4148
Q201
2SK246 GR
Q203
KRC107 M
R206
10K
R212
2.7K
R214
12K
R204
100K
R202
8.2K
R218
12K
R209
10K
R208
330
R216
12K
C202
0.0056
R210
10K
R215
12K
C215
1/50
R217
12K
R205
10K
R211
2.7K
R213
12K
R203
100K
C201
0.0056
C203
1/50
R201
8.2K
C209
47/16
C211
0.0033
R422
1K
R415
1K
R416
1K
R418
1K
R421
1K
IC401
LC75342M
C415
10/16
C417
2.2/50
C419
0.0027
C421
0.1(ML)
C423
0.1(ML)
C425
10/16
C430
100/16
D403
1N4004
R439
3.9K
R437
6.8K
C429
33/16
R438
6.8K
C418
2.2/50
C420
0.0027
C426
10/16
C422
0.1(ML)
C424
0.1(ML)
R440
3.9K
R423 1K
D402
1N4004
D401
1N4004
C116
0.022
R105
470
R109
22K
L602
3µH
R638
4.7
C613
0.1
C615
0.1
C614
0.1
C113
0.022
C110
0.001
C616
0.1
C105
0.0015
C103
10/50
C108
0.0015
R111
1K
Q101
KTC3200 GR
C107
100/50
Q103
KTC3200 GR
R115
56K
C109
3P
R102
39K
R103 1K
R101
39K
C101
10/50
C114
100/50
C627
0.022
C628
10/16
Figure 27 SCHEMATIC DIAGRAM (2/8)
Page view 26
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