AOC LE32D1442/20, Service Manual

Page: 48 / 107

48
9. Schematic Diagram
9.1 Main Board
715G6325M01000004K
+ C757
100UF 16V
R731
100K 1/16W 5%
C736
100NF 25V
R778
4.7K R787
4.7K
C426
22UF 20% 6.3V
DVDD3V3
+12VSB_PRE
+5V_SW
L703
15UH
C776
1uF 10V
10/21
C775
1uF 10V
R719 4.7K 1/16W
R777
NC 1K
+12V_AL_PRE
BL_ON/OFF
+12VSB_PRE
STANDBY
FB703 120R 6A
1 2 +12VSB_PRE
SOT223 0.6A/3.3V
25mil
OEM MODEL Size
Rev
Date Sheet of
TPV MODEL
PCB NAME
称 爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
M0D
A3
5 16 Monday , October 21, 2013
< 称爹 >
05_Sy stem Power
20mil
056G 563149
BL_DIMMING
M ax:3.3V
M in: 0V
BRIGHT ADJUST
R732
18Kohm 1/16W +/-1%
C733
100N 16V
FB710
120R 6A
1 2
C737
10UF 25V
C732
22UF 16V
R735
3.3K 1%
C739
NC 22PF 50V
TP712
Low active
C738
1.5nF 50V
TP488
R775
NC/0R051/8W
TP94
+12V
+5VSB
AC_DET
R788 4.7K
Q706
MMBT3904
C717
22UF 20% 6.3V
+12V_Amp
R776
NC 0R051/8W
For 2K14 PSU
U411
G5695T11U
VIN
1
GND
2
EN
3
VFB
4
LX
5
TP29
FB706
NC 120R/6000mA
1
2
TP30
+5VSB
C722
22uF 6.3V
R773
0R05 4A 1/4W
90mil
+5V Switch
90mil
TP1067
BRIGHT_ADJ
R723
NC 100R 1/16W 5%
3V3SB
BL_DIMMING
R728
0R05 1/16W
OPWRSB
R714
10 OHM 1/10W
DVDD3V3
U702
VIN
3
VOUT
2
GN
D
1
AC_DET
U703
uP1734PSW8
NC
1
LX
2
POK
3
EN
4
FB
5 VDD
6
VIN
7
GND
8
GND
9
H = > AC_ON
L = > AC_OFF_DET
AC Detect
DVDD3V3
TP32
BL_ON/OFF
FB702
220R/2000mA
1 2
C712
10UF 10V
INVERTER_ON_OFF
C704
NC/100N 16V
C731
100N 16V
BL_ON/OFF 9
C713
100N 16V
BL_DIMMING
R722
NC 0R05 1/16W
BL_DIMMING
+12V_Amp
R772
51K 1/16W 5%
BL_ON/OFF
PS_ON
DVDD3V3
+5VSB
R709
22K 1/16W 5%
+5V_SW
NC/4.7UF 10V
C726
+5V_SW
R779
1K
R729
82K 1%
R730
18Kohm 1/16W +/-1%
R771
1K 1/16W
AVDD3V3
C718
10UF 6.3V 20%
TP33
VCCK
C721
2.2UF
TP34
C711
100N 16V
TP35
TP36
R724
NC 10K 1/16W 5%
R786
1K
TP37
C716
100N 16V
C725
NC 10N 50V
TP38
U705
G5695T11U
VIN
1
GND
2
EN
3
VFB
4
LX
5
Q703
PMBT3904
+5VSB
C427
100N 16V
TP39
+5VSB
AVDD1V2
Q702
AO4449 -7A/-30V
S
1
S
2
S
3
G
4
D
8
D
7
D
6
D
5
40mil
L702
2.2uH
45mil
R1
R2
OPWRSB 9
INVERTER_ON_OFF
VCCK
C751
100N 50V
D712
NC/BAS316
Vout = 0.6x(1+R1/R2)=3.3V
45mil
IO POWER_3.3V
L701
2.2UH
Q704
MMBT3904
C715
22UF 20% 6.3V
BL_DIMMING 9
3V3SB
TP1065
SOT23 1.0A/3.3V
TP1064
TP40
TP1069
TP41
TP42
TP1068
R766
NC 100K 1/16W 5%
TP43 TP44
TP45
CN110
CONN
1
2
3
4
5
6
7
8
9
10
C709
1uF 10V
TP25
TP26
TP27
TP28
C754
100N 16V
AC_DET Q707
PMBT3904
INVERTER ON/OFF
H: ON
L: OFF
INVERTER ON/OFF
INVERTER_ON_OFF
Low active
TP46
TP121
R780 4.7K
Q705
PMBT3904
+12V_AL_PRE
R713
NC/22K 1/16W 5%
FB704
120R 6A
1 2
GPIO
For 2K13 PSU
FB705
NC 120R/6000mA
1 2
C750
22UF 16V
C758
1uF 10V
TP89
+12V
AC
_
D
ET
TP92
C756
NC/4.7UF 10% 10V
ORESET# 9
R710
150K 1/16W 5%
R717
12K 1/10W 1%
+12V_AL_PRE
+12VSB_PRE
+12V_Amp
2D/3D_EN
BRIGHT_ADJ
Close U706
INVERTER_ON_OFF
GPIO
STANDBY
DRAM POWER DDRV 1.5V
Vout = 0.6x(1+R1/R2)=1.5V
45mil
R1
R2
R736
4.7K 1/16W
Close to U401
C735
100N 16V
5/20 BOM
Change
R734
24.9K 1%
C710
10uF 10V
R711
10K 1/16W 5%
25mil 80mil
PS_ON control
R712
22K 1/16W 5%
L = > DC_OFF
80mil
R2
Vout = 0.6x(R1+R2)/R2
SOP-8 5.0A/1.2V
Close to DC-DC
CORE POWER DV1.2
H = > POWER_ON
BRIGHT_ADJ
R1
TP710
+12V
C428
2.2UF
+12VSB_PRE
R456
33K 1/16W 1%
R704
NC 100R 1/16W 5%
R460
22K 1/16W 1%
L401
2.2UH
U706
G5759F11U
EN
1
BS
2
IN
3
LX
4
VCC
5
GND
6
FB
7
COMP
8
E-PAD
9
DVDD3V3
For AOC_DLED 4
LO = > POWER_ON
HI = > POWER_OFF
10mil
Main power On/Off control
PS_ON /STANDBY
100mil
V_out = 0.8 x (1+R1/R2)
12V TO 5VSB
L = > DC_OFF
R2
H = > POWER_ON
R1
C705
100N 16V
DDRV
R453
0R05 4A 1/4W
90mil
+5V_SW
CN701
CONN
2
4
6
8
10
12
14
16
1
3
5
7
9
11
13
15
AC_DET 10
R454
0R05 1/16W
R733
47K 1/16W 5%
R785
100R 1/10W 5%
(Standby)
Close CN701
R703
0 OHM +-5% 1/8W
PS_ON
OPWRSB
R765
NC/1M 1/16W
Control Interface
2D/3D_EN
R739
4.7K 1/16W
3V3SB
R705
1K 1/16W 5%
Q708
PMBT3904
R738
4.7K 1/16W
BRIGHT_ADJ
C714
NC/22pF 50V
R718
11.8K 1%
+12V_Amp