Schematic; Main Board - Dynex DX-40L260A12 Service Manual

40"LCD TV

9. Schematic

9.1 Main Board

715G4522M0H000004K
3) Tuner/VGA Inputs
ENV56U04D8F
ET-29DHR
1
2
RF Input 3
5
(Back) 6
9
10
11
12
13
14
5V: +B = 150mA(MAX)
I2C Bus Address
#C2H (Write Mode)
#C3H (Read Mode)
VGA Input
(Back)
R120
4.7K 1/10W
VGA_SDA
7 VGA_SDA
RGB_HSY NC
RGB_VSY NC
VGA_SCL
7 VGA_SCL
RGB_HSY NC
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5VT
TU101
ENV56U04D8F
C101 C102 C103
100N16V 1UF16V
0402 2N2 50V
1
NC
2
+B
3
C147 2.2uF 10V
RF-AGC
5
C104 2N2 50V
NC
6
BT Monitor
9
R101 100 OHM 1/10W I2C1_SCL
SCL
10 I2C1_SDA
R102 100 OHM 1/10W
SDA
11
IF Monitor
12 IF_AGC
IF AGC
13 IF_AN
IFD-out1
14
IF_AP
IFD_out2
C110 C111 C112
10pF 50V 10pF 50V 100N16V
0402 0402 0402
TU_GND
TU_GND
+5VSB
ZD110
BAT54 ZD101 MLVG0402
2 1
2 1
R121 ZD102 MLVG0402
4.7K 1/10W
11
12
R107 100 OHM 1/10W
13
R109 1K 1/10W
14
R111 1K 1/10W
15
R115 100 OHM 1/10W
R116 R117 ZD106 ZD107 ZD108 ZD109
2.2K 1/10W 2.2K 1/10W
VPORT0603100KV05
VPORT0603100KV05 VPORT0603100KV05
VPORT0603100KV05
3V3_STB
C120
VGA_HSY NC_DET
R119 220R +-5% 1/16W
100N16V 0402
0402
2 4
R118 33R 1/16W 5% VGA_HSY NC
0402
U103 C123
SN74LVC1G17DBVR
NC/22pF
0402
space/trace/space/trace/space(mil)
25 / 8 / 6 / 8
Place close to TU101
L101
C105 1N 50V
0402 0.22uH 5% 0805
I2C1_SCL 6
I2C1_SDA 6
L103
C109 1N 50V
0402
0.22uH 5% 0805
UART0_TX
R104 470OHM1/10W
UART0_TX 7
UART0_RX
R105 470OHM1/10W
UART0_RX 7
CN101
6
1
7
2
8
3
9
4
10 ZD103 ZD104 ZD105
5
C114 C115 C116
VPORT0603100KV05 VPORT0603100KV05 NC/18pF 50V NC/18pF 50V
0402
VPORT0603100KV05 NC/18pF 50V
0402 0402
D-SUB 15P
088G 35315FHDS
3V3_STB
C124
VGA_HSY NC_DET 7
100N16V
0402
2
RGB_VSY NC
VGA_HSY NC 4
T P V ( Top
絬 隔 瓜 絪 腹
Key Component
Date
34
Best Buy DX-40L260A12
/ 25
Place parts very close to U401
L102 C106 IF_AINN
IF_AINP
33P 50V
0.15uH 0402 C107 C108
15PF50V 15PF50V
0402 0402
C146
10N 50V
0402
IF_AGC
R103 2K 1/16W
0402
C113
100N16V
0402
Place parts very
close to U401
1 2
FB101 30 OHM R106 0.05R
1 2
FB102 30 OHM R108 0.05R
1 2
FB103 30 OHM R110 0.05R
R112 R113 R114
75R 1/10W 1%
75R 1/10W 1%
75R 1/10W 1%
VGA_VSY NC_DET
R126 220R +-5% 1/16W
VGA_VSY NC_DET
0402
4
R125 33R 1/16W 5% VGA_VSY NC
VGA_VSY NC
0402
U105 C126
SN74LVC1G17DBVR
NC/22pF
0402
Victory Electronics Co . , Ltd. ) OEM MODEL
G4522-M0H-000-0040-1-110215 TPV MODEL
03-Tuner/VGA Inputs PCB NAME 715G4522
Tuesday , February 15, 2011 Sheet 3 of 13
U401F
Dmodulator I/F
B12
AFE_IFN
A12
AFE_IFP
A13
AFE_SIF/AFE_PR2
A4
IF_AGC
ZR39748BGCG
VGA_R
VGA_R 4
VGA_G
VGA_G 4
VGA_B
VGA_B 4
7
7
Custom
Size
Rev F
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