Page 1
C158
PL407
PL408
D1
1N4148
1k
16V
100u
R423
BC858B
Q400
8k2
R424
R425
MUTE
AMPON
1
2
3
4
1k
VCC_8V
MUTE
AMPON
MAIN_L
1k
220R
R426
R427
R429
1k
5
6
1
MAIN_R
-14V-AS
2
3
+14V-AS
4
R428
VCC_8V
30k
Q401
BC548B
MAIN_L
-14V-AS
MAIN_R
C125
330n
63V
C149
100n
25V
C137
330n
63V
-14V-AS
C104
0u47
50V
C121
C133
C127
100n
S103
C139
STBY-MUTE6FEED1
IN1
10
1n
50V
PREAMPLIFIER1
+5V12
100n
GND13
-5V16
-VCC_SYGN1
VREG25
PREAMPLIFIER2
18
IN2
1n
50V
G=2.5
G=2.5
R110
R126
4k7
4k7
50V
470p
C119
7
INTEGRATOR1
IC102
TDA7490L
INTEGRATOR2
FEED4
19
50V
470p
C135
R124
50V
470p
C123
68k
R115
9
FEED2
14
CURREF
+14V-AS
130k
R120
PWM-stage1
PWM-stage2
FEED3
50V
470p
C141
68k
NC
20
17
-14V-AS
C107
2200u
25V
OSC
-VCC1
-VCC2
2
24
-14V-AS
C111
100n
100n
C145
+VCC1
+VCC2
22
+14V-AS
4
BOOT1
OUT1
OUT2
BOOT2
OSC
C115
2200u
25V
T1
T2
5
3
11
8
15
23
21
+14V-AS
33n
C143
C113
33n
-14V-AS
51k
R112
100R
R128
50V
560p
C146
22k
R118
330p
C128
R122
22k
330p
C131
50V
560p
C109
100R
R108
51k
R129
-14V-AS
VESTEL ELECTRONICS
Monitor PIXELWORKS
7.5mm OPTION__47uH
40uH
L102
10k
R114
C117
27p
7.5mm OPTION__47uH
L104
40uH
Lout
40uH
L100
C105
C151
330n
330n
63V
L106
40uH
63V
C156
C157
Rout
220n
220n
63V
63V
TV R&D GROUP
AUDIO AMPLIFIER BOARD
1
2
PL405
1
2
PL406
17AMP06_E1
DATE
27/11/2002
Author
OLGUN UNAL
Sheet 01
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