5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
CON 14P*1.25
CIRCUIT DIAGRAM-TFT BACKLIGHT
7.0 ELECTRICAL DIAGRAM
+9VIN
+3.3V
DCPWM1
DC_FBK1
PCK1
+5V
+9VIN
+3.3V
+3.3VTFT
+9VIN_TFT
IR
BL_EN
PWM
LP
DC_FBK1
PCK1
DCPWM1
LP
+5V_TFT
+5V
IR
PWM
+5V
FB
BL_EN
+5V
+3.3V
1
+9VIN
2
DC_FBK1
2
DCPWM1
2
PCK1
1
LP
1
+5V
2
RL43
10K
CL2
100PF
RL27 10K
CL35
0.1uF
RL47
3R
IR1
SENSOR
1
2
3
CL33
0.1uF
RL48
1R
RL23 90K
LL23
FB 600R
CL34
0.1uF
LL22
FB 600R
RL18
0
QL5
3904
2
1
3
RL44
10K
LED +1
C54
0.1uF
LED —1
UL2
SS6610
1
5
3
4
2
6
SW
OV
FB
EN
GND
VIN
JL1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DL5
SSD03
1
2
+
ECL4
2.2UF/16V/0805
LL21
FB 600R
+
ECL5
100uF10V
RL45
4.7k
CL2
0.1uF
LL5
22uH/CD54
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 ...
Page 26: ......
Page 27: ......
Page 28: ......
Page 29: ......
Page 30: ......
Page 31: ......
Page 32: ......
Page 33: ......