Thank you, and a follow-up question*

Next look at the leads from the inverter to the CCFLs (backlights).
Usually the wires are in pairs. *If the wires in the pairs are of
different diameters the smaller diameter wire is the return line.
Measure the AC voltage on each return line as the backlights are
operating. *(Yes, you only have a few seconds). *Normally each wire
will have the same voltage; you are looking for the one that is
noticably different than the others.


Measure across the return line to what? Is there a well marked
grounding point on the board? Or should I just measure across the two
wires to see what voltage the lamp is getting, and look for one with a
significant difference among the others?

Thanks you all for your pointers...

If the CCFL's are bad, where is a good place to buy replacements at a
reasonable cost?

TIA,
John