Troubleshooting Guide - LG Flatron L1811B Service Manual

TROUBLESHOOTING GUIDE

NO POWER
(POWER INDICATOR OFF)
CHECK J801
INPUT VOLTAGE
(12V) ?
YES
CHECK J801
5VST VOLTAGE
(5V) ?
YES
CHECK
U501's PIN 6.
IS THIS PIN
OSCILLATED?
YES
TROUBLE
SOMEWHERE ELSE
1. NO POWER
NO
NO
NO
- 13 -
TROUBLE IN
BULT-IN POWER
TROUBLE IN
BULT-IN POWER
TROUBLE IN
U501 or X501