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LG FLATRON L4200A Service Manual page 23

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2. NO RASTER(OSD IS NOT DISPLAYED)
NO RASTER
(OSD IS NOT DISPLAYED)
YES
CHECK U402?
YES
CHECK
LVDS OUTPUT
(J401)?
YES
CHECK
INVERTER POWER
(J605, J605) ?
YES
CHECK INVERTER
NO
NO
NO
- 22 -
CHECK THE PERIPHERAL
IC U402
CHECK THE PERIPHERAL
IC U402
CHECK U604 AND THE
PERIPHERAL IC U604

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