Electronic Parts Troubleshooting Guide - LG LM-4462C2T Service Manual

Electronic Parts Troubleshooting Guide

Possible Trouble 1
Is the input voltage
AC230V?
YES
Is the input voltage
of IC03D about DC12V?
YES
Is the output voltage
of IC03D DC5V?
YES
Is the PIN 49,58 of
MICOM. DC5V?
YES
Exchange MICOM.
: The unit does not operate.
NO
NO
NO
NO
–35–
Check the FUSE
and the wiring diagram.
Check the main P.C.B
pattern.
Exchange IC03D.
Check the
5V P.C.B pattern.