LG Flatron W1946S User Manual

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Copyright 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
TROUBLESHOOTING GUIDE
1. NO POWER
NO POWER
(POWER INDICATOR OFF)
CHECK U201
NO
NO
CHECK POWER BOARD,
AND FIND OUT A SHORT
POINT AS OPENING
EACH POWER LINE
CHECK IC1(3.3V)
IC1(1.8V) LINE
NO
CHECK CRYSTAL(X501)
YES
YES
YES
CHECK P605 VOLTAGE
PIN5, PIN6 (5V)?
IS IC1 PIN1(3.3V)
IC1 PIN4(1.8V)
CHECK U201 PIN1
PULSE
1
2
13
14
Waveforms
1
P605-#5,6
2
IC1-#2
3
IC-#2
4
U201-#1

LG Flatron W1946S Specifications

General

Brand	LG
Model	Flatron W1946S
Category	Monitor
Language	English