AVX-505
7.2.2 TROUBLESHOOTING FOR LCD 5.5 MONITOR
Power does not turn ON.
NO : Abnormal
YES : Normal
Check the
Check the system NOvoltage of CN1-
power and correct.2,3,8,9,PWRFL and PWRVI. Is
the voltage 9.5?1.0 V?
YES
NO
Correct the
Check CN1-1 DIMM voltage.
dimmer voltage.
YES
NO
Check if the power is
Replace F1.
supplied to F1.
YES
Put probe of NOCheck the waveform
A1oscilloscope near the yellow
(waveform 1).
tape of T1.
YES
NOHigh voltage ! Be careful for high voltage!
Insert CN4 completely.Is CN4 completely inserted?Be sure to turn the power OFF,
then check.
YES
Replace back light.
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