IBM T541

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2. NO RASTER (OSD IS NOT DISPLAYED) – INVERTER
CHECK MICOM INV
ON/OFF PORT.
J704 PIN 8
5V?
NO
NO RASTER
(OSD IS NOT DISPLAYED)
CHECK POWER BOARD
J704 PIN 1
12V?
NO
1. CONFIRM BRIGHTNESS
OSD CONTRL STATE.
2. CHECK MICOM DIM-ADJ
PORT
J704 PIN 7
5V?
NO
REPLACE
INVERTER ASS’Y
CHECK
PULSE AS
CONTACTING SCOPE
PROBE TO CAUTION LABEL.
(CONTACT PROBE TO
CAUTION LABEL.
CAN YOU SEE PULSE
AT YOUR
SCOPE?
NO
REPLACE CCFL LAMP
IN THE LCD MODULE
YES
YES
YES
YES