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Backlight
„
SMPS Front
•
Example of Models with Series Strings of LEDs(size related).
If one LED string goes out all are out, no Backlight.
CNL802
15
IF2
13
N.C
11
1-
9
N.C
2-
7
5
N.C
3-
3
1
N.C
OD_UD
BLU_PWM
PWR_On/Off
GND
GND
3 Sets of LED Strings in series
Wired SMPS CNL802 to determine
16
IF1
14
N.C
12
N.C
1+
10
8
N.C
2+
6
4
N.C
2
3+
CNM803
2
A13V
4
A13V
6
A13V
8
A13V
10
GND
3
2
Series
Drive To Panel LEDs
CNL802
CNM803
1
3
5
7
9
1
or Parallel.
4. Troubleshooting
Fuse
CNL802 (to BLU)
1
N.C
9
2
N.C
10
3
3+
11
4
N.C
12
5
N.C
13
2+
6
14
3-
7
15
8
N.C
16
N.C
1+
1-
N.C
N.C
2+
IF2
IF1
4-9
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