Gateway FPD1520 - Page 16

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1. CHECK PIN141, 142
SOLDERING CONDITION
2. CHECK X201
3. TROUBLE IN U201
U201
POWER PINS
3.3V?
NO
CHECK U802, U806
U201 PIN141, 142
OSCILLATE AS 14.3M?
NO
CHECK CONNECTION LINE
FROM U201 TO J701
NO
TROUBLE IN CABLE
OR LCD MODULE
TROUBLE IN CABLE
OR LCD MODULE
CHECK U805
CHECK U805
J701 PIN41
3.3V?
NO
NO
YES
YES
YES
(LG Philips Module)
YES
YES
3. NO RASTER (OSD IS NOT DISPLAYED) – gmZAN2
NO RASTER
(OSD IS NOT DISPLAYED)
J701
PIN2 IS 65MHz CLOCK?
PIN4 IS 48KHz H-SYNC?
PIN5 IS 60Hz V-SYNC?
PIN37 IS 48KHz DEN?
IS PULSE APPEARED
AT SIGNAL PINS?
J702 PIN1
3.3V?
YES (Hydis Module)