LG LP-10091CL/XL Service Manual page 52

5) No heater operation works
Is the Heat S/W of Main
PCB "ON"?
YES
Is the DC 5V at 15 pin of
MICOM
YES
Is the
DC 12V at eack terminal?
(RY-Heater COIL)
YES
Is the
AC220V (AC 240 V) between
connector(HEATER) and CN-outunit Pin 1
of Main P.C.B
YES
Check the heater wiring
NO
NO
NO
NO
– 52 –
Heat S/W "ON"
Replacement MICOM
Replacement ICO2M
Replacement RY-Heater