Samsung UE9Z Training Manual page 64

Troubleshooting
No power AND No Video
Check 'Power of main IC(B1.2V/B3.3V)'
Check 'Power of DDR IC(B1.5V)' appear at
BD223,BD224,BD220(1.2V),
BD212,BD215,BD228(3.3V)
BD226(1.5V),L204(1.1V)
Check 'Power of LVDS (13V)'
appear at PANEL_VCC?
0V to 13V (BD216)
Change the LVDS cable
YES
YES
YES
NO
Cause : There is problem at
DCDC(IC206,IC202,IC202,IC205)/LDO
measure : Change the Main Assy
NO
Cause : there is probem panel or T-con board or Main assy
measure : Change the Main Assy
NO
Change the Panel