Troubleshooting Guide; Power Does Not Turn On - Sharp LC-26SB14U - 26" LCD TV Service Manual

(LCD SECTION)

POWER DOES NOT TURN ON

Is F401 broken?
No
Is there voltage at pin
1 of IC402 6V?
Yes
Is R412 broken?
No
Is there voltage at pin
10 of IC401 19V?
Yes
Change DIGITAL PCB.

TROUBLESHOOTING GUIDE

Yes
No
Yes
No
E-1
Change F401.
Check IC402 and peripheral
circuit.
Change R412.
Check IC401 and peripheral
circuit.