Sharp LC-26AD5E-BK

TROUBLESHOOTING GUIDE
POWER DOES NOT TUNER ON
Is F401 broken?
Is there voltage at pin
10 of IC401 at 18.9V?
Is there voltage at pin
4 of IC402 at 15.1V?
Change F401.
Check IC401 and peripheral
circuit.
Change MAIN PCB.
No
Yes
Check IC402 and peripheral
circuit. Or change IC402.
No
No
Yes
Yes
E-1