Hey guys, left a post about this Sanyo 31" DS31650 TV a while back, that had
a bad flyback and HOT. After replacing the set would turn on, but only for
about 3 seconds and then turnoff. Repeating pressing of the on switch will
get the tube to light up enough to show there is a raster, but no video.
Sound is fine. The customer decided to buy a new set right after this one
was brought in to me, and said he was in no hurry to fix it, so I set it
back while I had more pressing things to work on. Now I would like to get it
out of the shop. Before I order a schematic on this thing, I was wondering
if anybody had at least enough info on this chassis for me to take a crack
at fixing it without the schematic. The problem is the set won't stay on
long enough to do much. I'm sure the micro is tripping the set and shutting
it off, but I don't know if it might be the micro itself, which some have
claimed to replace and solve this problem, or whether the lack of a video
signal, is tripping the micro. If anybody has any info, schematic, or at
least the correct voltage points/waveforms to check that would cause the
micro to shut down, it would be appreciated. If not, I'll probably just
order the schematic and a new micro. I just hate rapping much money up in
this thing, since I doubt it will have all that much more life left in it.
Thanks!