5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
7.0 ELECTRICAL DIAGRAM
CIRCUIT DIAGRAM-TFT BACKLIGHT
VGL
VGH
DC_FBK1
DCPWM1
AVDD
+9VIN
AVDD
VGH
VGL
+5V
DCPWM1
3
DCPWM1
2
DC_FBK1
2
DC_FBK1
3
+9VIN
3
AVDD
1
VGL
1
VGH
1
+5V
3
VGH
+9VIN
+5V
VSW
SW_DC
VGL
VSW
AVDD
SW_DC
+
CL28
10U/16V/1206
RL42
1.8K
DL1
7.5V
1
2
C3L1
10U/10V/0805
CL24
1uF/0603
1
2
LL3
100uH/COIL
CL30
0.1uF
CL23
0.1uF
1
2
RL34
4.7k
1
2
RL40
13K
DN2 SS214U
1
2
3
+
CL25
10U/25V/1206
RL38
1k
1
2
RL35
1k
DL3
11V
1
2
CL19
1uF/0603
1
2
DNL1
SS214U
1
2
3
+
CL20
10U/10V/0805
CL29
10U/10V/0805
QL1
3906
1
2
3
RL41
1K
CL27
1uF/0603
1
2
CL32
0.01uF
CL22
1uF/0603
1
2
QL3
3904
1
2
3
CL21
0.1uF
1
2
RL36
1k
1
2
CL18
0.1uF
1
2
DNL3
SS214U
1
2
3
RL39
0R/0805
DL4
BAT54C
1
2
3
QL4
SSN00206M
1
2
3
DL2
16V
1
2
QL2
3904
1
2
3
Summary of Contents for PET944
Page 7: ...3 0 INSTRUCTION FOR USE ...
Page 8: ...3 0 INSTRUCTION FOR USE ...
Page 10: ...Remove the 2pcs screws and cabinet on the TFT and IR board ...
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