Samsung HG24EE690AB - Page 129

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