Service Manuals, User Guides, Schematic Diagrams or docs for : AOC LCD L42HA91 AOC+L42HA91
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8. Block Diagram
55
9. Schematic Diagram
9.1 Main Board 715G3431-1
EU MT5362 - 4 LAYERS
STB_PWR5V FB100 220R/2000mA +5V_STB
+24V
1 2 +5V_STB +5V_SW 13 +24V +12V
2,9,13 +12V +5V_STB
DC POWER INPUT
FB101 220R/2000mA
2,5,10,13 +5V_STB +5V_SW
BRIGHT_ADJ: 1 2 + C107 C106 2,5,8,9,10,11,12,13,14 +5V_SW +5V1_TUN
Normal:Max:+3V3, Min:0V 470uF 10V 100N 16V Q104 SI5441DC 2 +5V1_TUN DV18_DDR
8 1 2,6 DV18_DDR DV11
Stand_By:0V 7 D D 2 4 DV11 OPWRSB
R119 6 D D 3
Modify by Victor - 1210 5 OPWRSB
INVERTER_ON_OFF: STANDBY: 33K 1/10W 5% 5 D D 4 STAND_BY
S G 13 STAND_BY BRIGHT_ADJ
OPWRSB(+5V_SW ON/OFF): 14 BRIGHT_ADJ
Normal: High Normal: High C105 + C101 INVERTER_ON_OFF
Norm al: High 100N 16V 330UF 16V 14 INVERTER_ON_OFF
Stand_By: Low Stand_by: Low
TP100
TP101
TP102
TP103
TP104
TP105
TP106
Stand_By: Low DV33
2,4,5,7,8,11,12,13,14 DV33
C130 1uF 16V
DV33SB
DV33 2,4,5,7,10,12,13,14 DV33SB
1
1
1
1
1
1
1
OPCTRL3
CN100 R130 4,5 OPCTRL3
3
R107 22K 1/10W MEM_VREF
13 AC_Detect R144 OPWRSB 2 Q101 6 MEM_VREF
12 INVERTER_ON_OFF 1K 1/16W 5% BC847C
11 BRIGHT_ADJ SMD/0402 GND
10K 1/10W 5% 2,3,4,5,6,7,8,9,10,11,12,13,14 GND
1
10 C121 C114
+12V
9 R154 100N 16V NC/4.7UF 10V
8 STANDBY
NC/1K 1/10W 5%
7 GPIO_16
6 R126 5,7 GPIO_16
5 Q106 1K 1/16W 5% STAND_BY
+24V
4 SMD/0402 BC847C SMD/0402
3 R113 100R 1/16W 5% STANDBY
2 STB_PWR5V C124
+5V_STB(+5V1) TO +5V_SW BY OPWRSB
1 100N 16V STAND_BY:
SMD/0402
Normal: Low
CONN Stand_by: High
For ACD function -1204
+5V_STB DV33
+5V_STB CN101
OPCTRL3
R791
1 10KOHM +-5% 1/10W
R147 100 OHM +-5% 1/10W 2
3 R789 R782 100R 1/16W 5% GPIO_16
68KOHM +-5% 1/10W NC/0R05 1/10W 5%
R146 Q752
R148 1K 1/10W 5% Q107 2SK1828 C806
CONN NC/100N 16V
MMBT3906 PNP AC_Detect R790
R155 R145 10KOHM +-5% 1/10W
10KOHM +-5% 1/10W AC Detect Function - 1211 DV18_DDR
10K 1/10W 5% R131 1K 1/10W 1%
MEM_VREF
DV33
3
R149 R132
1 Q108 1K 1/10W 1% C119 C120
MMBT3904 1UF 6V3 100N 16V
NC/10K 1/10W 5% SMD/0402
2
R150
NC/10K 1/10W 5%
+5V_SW
Toshiba Logo Use + C110
100uF 10V
DV18_DDR stabilizer
Add C100 - 1210
+5V_SW +5V1_TUN
R120 0R05 1/8W
C108 C132
0.6 x (1+2.44K/1.2K) = 1.82V 10U 16V 10U 16V 0.6 x (1+1.1K/1.2K) = 1.15V +5V_STB +5V1_TUN
15uH L101 U104 U103 L102 15uH
DV18_DDR L5945 L5947 DV11
1 8 8 1
Vout Vcc Vcc Vout
2
2
2 7 7 2
SY NC GND GND SY NC
240 OHM +-1% 1/10W
3.9KOHM +-5% 1/10W
3.9KOHM +-5% 1/10W
D101 3 6 6 3 D100 6 1
INH FSW FSW INH 5 D D
TH1
TH1
C112 + SS2P4 4 5 5 4 SS3P4 0R05 1/16W + C111 2
330UF 16V R124 COMP FB FB COMP 330UF 16V 4 D D 3
SMD/0402
R125 NC/SI3441BDVS G
1
9
9
1
Q103
2.2KOHM +-1% 1/10W
1.1KOHM +-1% 1/10W
C131
R104 C129 C128 NC/1uF 16V R102
R106 NC/22K 1/10W
330P 50V
330P 50V
USE 330uF 16V GF USE 330uF 16V GF R103 NC/33K 1/10W 5%
C102 C104 R123
R115 33N 16V 33N 16V
1% 1%
3
R101 C127
STANDBY 2 Q100
R117 NC/BC847C NC/10U 10V Y5V
1.2KOHM +-1% 1/10W R122 NC/22K 1/10W
1
1% 1.2KOHM +-1% 1/10W
1% R100 C126
NC/22K 1/10W NC/100N 16V
From +5V_SW to +1V8/+1V1
STANDBY:
Normal: High
Stand_by: Low
+5V_STB TO +5V1_TUN
FOR IF 5V HAS DIP
The item of this page start from "100"
TPV ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom
G3431-A-X-X-081016 TPV MODEL Rev 1
Key Component 01. POWER-1 PCB NAME 715G3431
Date Monday , December 29, 2008 Sheet 1 of 14
56
Panel VCC=5V 1,13 +24V
+24V
+12V
+12V
L150 NEARLY U155 PANEL5V 1,9,13 +12V +5V_STB
1,5,10,13 +5V_STB
DV18_DDR
1,6 DV18_DDR
R176 C165 L150 NC/15uH +5V_SW
1,5,8,9,10,11,12,13,14 +5V_SW
NC/1K2 1/10W 1%
R160
NC/0R05 1/8W U155 NC/220N 25V C171 C154
+
NC/SC4525BSETRT NC/220uF 16V +5V_TUNER
D150 NC/BAS32L NC/10U 10V Y 5V 3 +5V_TUNER +5V1_TUN
1 8 2 1 1 +5V1_TUN
2 SW BST 7 K A DV33
IN FB 1,4,5,7,8,11,12,13,14 DV33 AV33
NC/68KOHM +-5% 1/10W
3 6
ROSC COMP 3,5,10,11,12,13,14 AV33
TH1
DV33SB
C174 NC/2N2 50V
C172 4 5
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