27
AV1_R_1
R145
47K
1/16W
+
C114
10uF/16V
8V
8V
DVD_L_1
Vi
Bi
+
C117
10uF/16V
+
C120
10uF/16V
CH_SEL1
6
VIDEO_SEL
6,9
C100
0.1uF
+
C124
10uF/16V
0
ASEL_O_L
11
VSEL_R
9
Vo
C121
0.1uF
R146
47K
1/16W
TV2054-2Ea
1
VIDEO & AUDIO SELECT
A4
2
13
Wednesday , April 07, 2004
AOC(TOP VICTORY) Electronics CO., Ltd
Title
Size
Document Number
Rev
Date:
Sheet
of
+
C127
47uF/16V
R368 NC
12/02
LOW:INPUT1
AV1_L_1
L108 150 OHM
VSEL_HS
9
AV1
SCART_V
1
L109 150 OHM
1
SCART_L
SEL2
ASEL_O_R
11
L112
150 OHM
C163 0.22uF
AGND
AV1_L
1
Ro
1
AGND
VSEL_VS
9
Ro
H2
R144
100k
1/16W
+
C122
47uF/16V
SEL1
video
RN318
NC
1
2
3
4
8
7
6
5
VGA_HS
9
Bi
R
115
75
1/
16W
R
114
75
1/
16W
+
C123
47uF/16V
Bo
+
C125
47uF/16V
AV1
CH_SEL3
6
C162 0.22uF
U103
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
19
33
30
20
21
28
29
32
35
31
34
27
26
25
24
22
10
18
23
36
Vcc
Rin1
Vcc
Gin1
Vcc
Bin1
Hin1
Vin1
GND
Rin2
PS
Gin2
SEL
Bin2
Hin2
Vin2
GND
GND
GND
VOUT
HOUT
BOUT
Vcc
Vcc
Vcc
GOUT
ROUT
GND
GBuf
Sy ncSEP_I
Sy ncSEP_O
Vcc
GND
NC
Vcc
NC
R
113
75
1/
16W
SCART
VSEL_B
9
SCART_AL
1
AV_1
1
U102
NJM2244
1
3
5
6
7
8
2
4
VIN1
VIN2
VIN3
V+
VOUT
GN
D
SW1
SW2
TUNER
Hi
AGND
AV1_L_1
Ri
C161 0.22uF
RN100
47K
1/16W
1
2
3
4
8
7
6
5
RN101
100K
1/16W
1
2
3
4
8
7
6
5
1
DVD_R_1
VGA_VS
9
SCART_AR
1
VGA_B
9
AGND
CH_SEL2
6
Go
+
C116
10uF/16V
Gi
SEL3
+
C119
10uF/16V
DVD_AR
1
5V
+
C115
10uF/16V
Ri
5VP
Vo
L110
150 OHM
TUNER_OUT
3
Go
1
VGA_R
9
H2
+
C118
10uF/16V
SCART_L
C
148
470pF
R370
0
1/
16W
+
C128
47uF/16V
+
C168
10uF/16V
C
149
470pF
R136
NC
RP1
NC
1
2
3
4
8
7
6
5
R
111
75
1/
16W
0
SCART_R
SCART_VR
1
V2
C
146
470pF
HIGH:INPUT2
SCART_H
1
Gi
+
C129
47uF/16V
0
SCART_VB
1
DVD_AL
1
AV1_R_1
AV1_R
1
VGA_G
9
Vi
R
116
75
1/
16W
0
VSEL_G
9
V2
SCART
5V
R143
100k
1/16W
R369
0
1/
16W
CH_SEL2
6
C
147
470pF
C164 0.01uF
Ho
1
AGND
DVD_R_1
Bo
Hi
U100 74HC4052D
12
14
15
11
1
5
2
4
6
10
9
13
3
16
8
7
X0
X1
X2
X3
Y 0
Y 1
Y 2
Y 3
EN
A
B
X
Y
VDD
GN
D
VEE
C165 0.01uF
SCART_CVBS
1,9
R
112
75
1/
16W
+
C126
47uF/16V
1
1
+
C167
10uF/16V
DVD
audio
SCART_R
R137
NC
DVD_L_1
SCART_VG
1
Ho
C166 0.01uF
0
5V
CVBS_SEL_O 4
Summary of Contents for PB20C
Page 15: ...14 5 2 Main Board Power Circuit 5 3 Remote Control Block ...
Page 16: ...15 5 4 Key Board Control Block 5 5 PC Control Block ...
Page 17: ...16 ...
Page 18: ...17 5 6 Audio Control Block ...
Page 22: ...21 7 SOFTWARE FLOW CHART ...
Page 23: ...22 ...
Page 24: ...23 ...
Page 26: ...25 8 2 POWER BOARD BLOCK DIAGRAM ...
Page 44: ...43 9 3 KEY BOARD SCHEMATIC DIAGRAM ...
Page 45: ...44 9 4 HEADPHONE JACK BOARD SCHEMATIC DIAGRAM ...
Page 46: ...45 9 5 IR BOARD SCHEMATIC DIAGRAM ...
Page 47: ...46 10 MECHANICAL OF CABINET FRONT DIS ASSEMBLY ...
Page 79: ...78 12 PCB LAYOUT 12 1 MAIN BOARD PCB LAYOUT ...
Page 80: ...79 12 2 PWPC BOARD PCB LAYOUT ...
