Electrical Troubleshooting Guide; Smps Part (Power On) - LG SH2 Service Manual

ELECTRICAL TROUBLESHOOTING GUIDE

1. SMPS PART (POWER ON)

Start (AC In)
NO
Voltage between pin1 & 2 of the CN21
Check the F1, U1, R24, R25, R26.
is whether 21 V?
Clear NO
NO
Check the RS1, R9, C8. Repair the components described above.
YES (Clear)
Please check the Main board.
3-9