33
T11
T45
T32
T6
X400
12MHz
C430
0.47uF
SDA
3,4,5,6,9,11
T
38
T21
T48
T29
T19
C428
22pF
T35
R
447
150
1/
16W
R
443
150
1/
16W
T34
T10
T43
R
418
4.
7K
1/
16W
T25
T
13
R438
100K
1/16W
R
416
4.
7K
1/
16W
T
31
T9
VD_HS
4,6
T52
R
430
33K
1/
16W
T
38
C421
0.1uF
NC
T14
T24
C431
0.47uF
T2
T35
R454
100K
1/16W
TV2054-2Ea
1.0
TELETEXT
AOC (Top Victory) Electronics Co., Ltd.
B
8
13
Wednesday , April 07, 2004
Title
Size
Document Number
Rev
Date:
Sheet
of
VD_VOUT1
1
C432
0.47uF
T20
T9
R
442
150
1/
16W
T36
T15
T46
T41
R
417
4.
7K
1/
16W
R439
100K
1/16W
U402
SAA5264PS
13
14
15
22
23
24
25
26
27
28
29
30
31
34
33
32
35
36
37
38
39
40
41
42
43
44
9
10
11
12
52
51
50
49
48
47
46
45
16
17
18
19
20
21
8
7
6
5
4
3
2
1
VSSC
SCL(NVRAM)
SDA(NVRAM)
VSSA
CVBS0
CVBS1
SYNC_FILTER
IREF
FRAME
T
EST
COR
P3.4/PWM7
VD
D
A
R
G
B
VDS
HSYNC
VSYNC
VSSP
VD
D
C
OSCGND
XTALIN
XTALOUT
RESET
VD
D
P
P3.0/ADC0
P3.1/ADC1
P3.2/ADC2
P3.3/ADC3
P1.5
P1.4
SDA
SCL
P1.3
P1.2
P1.1
P1.0
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.7/PWM6
P2.6/PWM5
P2.5/PWM4
P2.4/PWM3
P2.3/PWM2
P2.2/PWM1
P2.1/PWM0
P2.0/PWM
T30
R451
100K
1/16W
C412
0.1uF
T23
L402
600 OHM
C415
0.1uF
5V
T26
T25
TEXT_B
4
T33
NC
T15
T19
T37
T52
T
28
L400
600 OHM
T
39
T1
R
420
22
1/
16W
+
C424
10uF/16V
T
13
T12
R
429
75
1/
16W
VD_VS
4,6
T
28
T3
R460
75
1/16W
C411
0.1uF
C433
0.1uF
T30
SCL
3,4,5,6,9,11
T22
T
31
T46
T50
5V
T40
T36
T49
U400
M24C02WMN6
8
1
2
3
4
7
6
5
VCC
A0
A1
A2
VSS
WP
SCL
SDA
NC
TEXT_G
4
+
C414
10uF/16V
R
428
75
1/
16W
R453
2.2K
1/16W
T29
TEXT_FB
4
T17
T34
T16
T
44
R450
100K
1/16W
R
448
150
1/
16W
T
44
AGND
T32
T2
T20
T41
C430 431 432 Bom use 0 OHM
T50
T51
C422
0.1uF
3.3VS
R452
220
1/16W
3.3VS
T11
NC
T26
T7
R435 75
1/16W
Q402
PM
BS3904
3
2
1
T12
D400
1N4148W
5264_RST
5
T3
R432
24K
1/16W
NC
RESET_OUT
T1
R
449
150
1/
16W
T17
T16
RESET_OUT
T37
R433
75
1/16W
T14
T4
NC
T24
T18
T10
T27
AGND
Q406
PMBS3906
3
2
1
R
427
75
1/
16W
T42
T4
+
C410
10uF/16V
T6
T27
T33
High active
T49
NC
T43
T5
T47
R458 0
1/16W
T40
U403
SAA5264PS
13
14
15
22
23
24
25
26
27
28
29
30
31
34
33
32
35
36
37
38
39
40
41
42
43
44
9
10
11
12
52
51
50
49
48
47
46
45
16
17
18
19
20
21
8
7
6
5
4
3
2
1
VSSC
SCL(NVRAM)
SDA(NVRAM)
VSSA
CVBS0
CVBS1
SYNC_FILTER
IREF
FRAME
T
EST
COR
P3.4/PWM7
VD
D
A
R
G
B
VDS
HSYNC
VSYNC
VSSP
VD
D
C
OSCGND
XTALIN
XTALOUT
RESET
VD
D
P
P3.0/ADC0
P3.1/ADC1
P3.2/ADC2
P3.3/ADC3
P1.5
P1.4
SDA
SCL
P1.3
P1.2
P1.1
P1.0
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.7/PWM6
P2.6/PWM5
P2.5/PWM4
P2.4/PWM3
P2.3/PWM2
P2.2/PWM1
P2.1/PWM0
P2.0/PWM
T21
T7
TEXT_R
4
T23
T42
R444 0
1/16W
T18
T45
R
441
150
1/
16W
R
440
150
1/
16W
NC
T8
R
419
33K
1/
16W
T5
T51
R
431
220
1/
16W
T8
VD_VOUT
4
T
39
T47
C427
22pF
+
C434
10uF/16V
R457 0
1/16W
T22
T48
C426
0.1uF
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 ...