Philips PET742, Service Manual

Page: 18 / 35

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
E E
2N3906
1
2
B
C
2N3904
B
C
3 1
2
3
3
2
E
2 2
1 B 3 3
2 C C
1
2N3904
1 3
BAV99 2N3906
B E 1
MAIN BOARD AUDIO&VIDEO CIRCUIT DIAGRAM
AC
+Vcc
+Vcc
L_HP_IN
R_HP_IN
CVBS_OUT
AV-OUT-L
CVBS
AV-OUT-R
VCC9
SPR
R_HP_IN
A_R_SPEAKER
L_HP_IN
A_L_SPEAKER
A_R_SPEAKER
A_L_SPEAKER
AOUT_R
AOUT_L
AV-OUT-R
AV-OUT-L
CVBS
DC_IN
DC_IN
SPL
AC
AOUT_L
AOUT_R
AOUT_R 2
AOUT_L 2
CVBS 2
DC_IN 1
VER
VER
DC_IN
C104
820p
C0402
R143
100K
R0402
+
C102
10uF
VJ2
VOLUME 10K
VRS
1
2
3
4
5
1
2
3
4
5
C113
150P
C0402
C107
0.1uF
C0603
C95 100pF
C0402
R133
33K
R0402
C108
150P
C0402
R120
5.1K
R0402
R135
NC
R0402
R134
100K
R0402
+
EC33 100uF/16V
6.3/5
+
EC32
10uF/16V
4/5
R132
100K
R0402
C115
0.1uF
C0603
+
EC25 10uF/16V
4/5
C98
820p
C0402
L36 FB2K2
R0603
R131
NC
R0402
R144 200R
R0603
VJ1
speaker
DIP4-1.25
1
2
3
4
1
2
3
4
C111
0.1uF
C0402
L35 FB600R
L-0805
JACK1 AV/OUT-JACK
AV-JACK1
6
7
1
2
3 45
6
7
+
C96
10uF
+
EC29
22uF/25V
7/5
R145
10K
R0402
C97
1000pF
C0402
R118 33K
R0402
C110
0.1uF
C0603
R142
2R(0805)
R0805
C106
0.1uF
C0603
R149
10K
R0402
L37 FB2K2
L-0603
R121 360R
R0402
R129 360R
R0402
VER1
earphone
EARPHONE
1 2 3
4 5
6 7
8
9
10
11
R128
5.1K
R0402
R122
24K
R0402
+
EC27
22uF/25V
7/5
R150
4.7R
R0402
L30
FB2K2
L-0603
R141
2R(0805)
R0805
C99 100pF
C0402
R148 200R
R0603
R147 56K
R0402
C109
0.1uF
C0603
U9
APA2822
SOP8
1
2
3
4
5
6
7
8
R130
24K
R0402
+
EC34 10uF/16V
4/5
R119 10K
R0402
C103
1000pF
C0402
R146 56K
R0402
+
EC36
100uF/16V
6.3/5
R139 100K
R0603
R137
NC
R0402
C105
0.1uF
C0603
C112
0.1uF
C0402
L38 FB2K2
L-0603
R126
75R 1%
R0402
+
EC35 100uF/16V
6.3/5
R125 33K
R0402
+
-
U8A
NJM4558-SOP-8
SOP8
3
2
1
8
4
C100
100pF
C0402
+
EC30
100uF/16V
6.3/5
C114
0.1uF
C0603
C101
100pF
C0402
R138
39K
R0603
+
-
U8B
NJM4558-SOP-8
SOP8
5
6
7
8
4
L33 FB2K2
R0402
R127 10K
R0402
R123
NC
R0402
D16
IN4148
1N4148/SMD
+
EC28
47uF/16V
7/5
R124 100K
R0402
R136
NC
R0402
R151
4.7R
R0402
R140
43K
R0402
+
EC31
100uF/16V
6.3/5
L34 FB2K2
R0402
+
EC26 10uF/16V
4/5
L32 1.8uH
L-0805
L31 FB2K2
R0402
Q22 2307
SOT23
2
1 3