Thanks for thr input, but I checked all that. Did the L14104
coil, unit runs perfect, just shut off,& on so quick, when you
turn your head, it's back on. replaced the Gemstar module
with two ribbons, as micro is in there, & could be getting
corrupt. Anything I missed? Unit hasn't been worked on
before. Did the arcing IHVT damage something, & make
it weak? Sky.

Flyback was arcing badly, replaced, works, & looks perfect,
but momentarily shuts off, & right back on, even before you
can look back at the set. may work for hours, or happen twice
in a half hour. Unplugged the customer controls on top of the set,
to make sure the "tact" switches aren't "leaky". Anything common
here? Nothing on the Thomson B2B website. Sky.

Sounds like it is time to hook up a 4 channel DSO to key points in the
set in order to find the problem.

It is the Thomson intermittents like this that pretty much require any
servicer invest in a 4 channel 100MHz DSO if they want to actually
diagnose the problem and fix it. So many times I found problem with
surface mount capacitors and conductive glue in this manner.

On 22 Oct 2005 07:39:01 -0700, "
wrote:

Sounds like it is time to hook up a 4 channel DSO to key points in the
set in order to find the problem.

It is the Thomson intermittents like this that pretty much require any
servicer invest in a 4 channel 100MHz DSO if they want to actually
diagnose the problem and fix it. So many times I found problem with
surface mount capacitors and conductive glue in this manner.


Does this TV have PIP feature? Pull the A/V module and resolder 2
SMD resistors one small and big for trimming voltage for 3.3V on LM317
regulator on small heatsink. This will do the 3 strike and out thing
if PIP/AV switch IC lose 3.3V.

Cheers, Wizard

Also look for glue around the 2 crystals near the LA7612 IC. Causes bad
connections on the crystals. Nobody else seems to ever see this. I see
it often.