Cool fault searching trick (excuse the pun).
Must remember that.

Bart Bervoets
"JM" wrote in message
...
Just wanted to follow up on my post about the LG 566LM lcd screen I asked
about a few weeks ago. Long story short, it suddenly started working on
me
one day after a few hour long visits to the freezer, but would gradually
degrade as it was left powered up.

I bought some freeze spray and was able to narrow the location of the
temperature sensitive part to one region of the board. By freezing the
end
of a Q-tip and probing in that area, found a single SMD cap that, when
frozen, brought back a nice clean picture. The cap was between pin 5 on
an
AIC1341 chip and ground, so I removed it and installed a regular old cap
of
the same value directly between that pin and a nearby ground. Works great
now!