Samsung UE49K5502AK - Smps Power

SMPS POWER 
SMPS_Front
1 CNM803
2 CNL802
Detail
1
To Main Board
2
To Panel LEDS CNL802
Testing
A13V1. Standby to Main Board : Approx 9Vdc.
Power_On/Off2. : 3.3Vdc Power ON/OFF.
A13V3. : to steady 12.7 Vdc.
OD/UD : 3.3Vdc4. Over & Under Drive.
BLU_PWM : .9V~3.3Vdc5. also labeled “BLU On/Off” Backlight On/Off & Backlight (PWM signal) Level Control.
4-4
4. Troubleshooting