Daewoo DPN-4274NHS Service Manual - page 50

-49-

TROUBLE DIAGNOSIS

(2) When weak Discharge exists on screen but “OSD screen” can not be seen

Definition of this symptom

- When the set is turned on, screen is BLACK but Weak Discharge (luminescence) exists.

- OSD does not show on screen and the set does not respond to remote controller or KEY panel

buttons.

PCB CHECK PRIORITY

- MAIN PCB, SUS PCB

Repairing Procedure

- Check LVDS cable (MAIN PCB to DIGITAL PCB) first and then other connectors connecting

MAIN PCB.  If this does not fix the problem replace MAIN PCB.