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
16
IF1
13
N.C
14
N.C
11
1-
12
N.C
9
N.C
10
1+
7
2-
8
N.C
5
N.C
6
2+
3
3-
4
N.C
1
N.C
2
3+
CNM803
OD_UD
2
A13V
1
BLU_PWM
4
A13V
3
PWR_On/Off
6
A13V
5
GND
8
A13V
7
GND
10
GND
9
Drive To Panel LEDs
To Main Board
CNM803
CNL802
Fuse
CNL802 (to BLU)
1
N.C
9
N.C
2
N.C
10
1+
3
3+
11
1-
4
N.C
12
N.C
5
N.C
13
N.C
6
2+
14
2+
7
3-
15
IF2
8
N.C
16
IF1
3 Sets of LED Strings in series
3 2 1
Wired SMPS
CNL802
to determine
Series
or
Parallel
.
4-9
4. Troubleshooting
