mosfet
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Jan 17, 2013, 5:54 AM
Post #1 of 1
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CCFL test
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The design is such that any problem with one CCFL will shut down
all CCFLs. An open transformer secondary will certainly cause
this problem. One technique is to disconnect all but one CCFL,
then turn the monitor on. If you get a flash of light,
disconnect the first CCFL, reconnect another, and turn it on
again. Repeat until you have verified all CCFLs light.
If one of the CCFLs does not light, connect it to the
adjacent transformer and retest. If it now lights,
the CCFL is good, the transformer driving it is bad,
and vice versa.
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