LG W2363D - Page 19

- 19 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. NO RASTER (OSD IS NOT DISPLAYED) – Mstar
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK VCC( 12V) OF
THE LCD MODULE
NO
NO
NO
CHECK ADAPTER AND FIND OUT A SHORT
POINT AS
OPENING EACH POWER LINE
CHECK REGULATOR AND
FIND OUT A SHORT POINT AS OPENING
EACH POWER LINE
CHECK THE LINES BETWEEN
IC100 AND IC100
CHECK POWER
INPUT VOLTAGE 5,6PIN
OF P600( 5V) AND
1,2PIN OF P600(18V)
CHECK IC602,702
PIN2( 1.8V)
IC600,700 PIN6 (3.3V)
IC601,701 PIN6 (1.27V)
CHECK PIN5, 6
(M_SCL, M_SDA)
OF IC100
YES
YES
YES
NO
CHECK IC 102 AND Q604 OPERATION
CHECK FET( Q604)
SWITCHING OPERATION
YES