TROUBLESHOOTING GUIDE
1. NO POWER
NO POWER
(POWER INDICATOR OFF)
TROUBLE IN
D901
TROUBLE IN
FUSE (F901)
TROUBLE IN
IC901 or Q902
TROUBLE IN
D923, D922, D931,
D924, D925, D927
TROUBLE IN
IC903
CHECK
FUSE OK?
CHECK
C912 (+) VOLTAGE?
(310VDC AT INPUT
VOLTAGE 110VAC)
NO
YES
YES
YES
NO
NO
NO
CHECK
Q902 DRAIN
WAVEFORM (SQUARE
WAVE COMES OUT?)
CHECK
D923, D922, D931,
D924, D925, D927
VOLTAGE?
YES
Summary of Contents for FLATRON 915 FT PLUS
Page 1: ...SERVICE MANUAL LG FLATRON 915FTPLUS MODEL ...
Page 20: ...BLOCK DIAGRAM ...
Page 23: ......