LG Flatron L1510M Service Manual page 12

2. NO RASTER (OSD IS NOT DISPLAYED) – INVERTER
NO RASTER
(OSD IS NOT DISPLAYED)
J705 PIN1
12V?
YES
J705 PIN8
5V?
YES
J705 PIN7
5V?
YES
CHECK
PULSE AS
CONTACTING SCOPE
PROBE TO CAUTION LABEL.
(CONTACT PROBE TO
CAUTION LABEL.
CAN YOU SEE PULSE
AT YOUR
SCOPE?
YES
REPLACE CCFL LAMP
IN THE LCD MODULE
NO
NO
1. CONFIRM BRIGHTNESS
NO
2. CHECK MICOM DIM-ADJ
NO
CHECK POWER BOARD
CHECK MICOM INV
ON/OFF PORT.
OSD CONTRL STATE.
PORT
REPLACE
INVERTER ASS'Y