SMPS : Backlight
A
B
Detail
A
To Main Board CNM803
B
Drive To Panel LEDS (CNL802)
Example of Models with
Series Strings
of LEDs (size related) If one LED string goes out all are out, no
backlight.
CNL802 (to BLU)
3 Sets of LED Strings in series
BL Control Voltage in
Fixed
Supply
Wired at SMPS CNL802 to determine Series or Parallel
1
NC
9
NC
2
3+
10
1+
3
3-
11
1-
4
NC
12
NC
5
NC
13
NC
6
2+
14
NC
7
2-
15
IF2
8
NC
16
IF1
4-6
4. Troubleshooting
