Main - Samsung UN40K6250AF Service Manual

4-1-2. MAIN

No power & no picture
„
Check the LED of function
Open the BACK-COVER and check the
10P power cable
Check the A13V of BD211/208/214/209
Check the Q203 base, voltage must be
no larger than 0.5V
Check the A5V of L310, B13V of Q201,
B5V of L203.
Check the A3.3V/B3.3V of Main IC
Check B1.8V of DDR IC
IC201#1, IC204, IC208#1
Check the 13V of LVDS
Q204#1/2/5/6
Change the LVDS
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No Check link of AC voltage
No Connect the 10p power cable
No Change the SMPS
No Change the Main Assy
No Change the Main Assy
No
Change the Main Assy
No
No Change the PANLE
4. Troubleshooting
4-5