First make sure the closed captioning ALL modes are turned off.
Very common on a Sanyo if set to text mode closed captioning with no signal
to get a dim picture right after channel change.

David

wrote in message
...
Hi. Got a Sanyo DS27590 that goes dim after 1 second. Change channel,
perfect for 1 second. I don't have a print. Chassis is 27590-01. I ran
into
this before on a 35" Sanyo. 5 volt reg was a little high, IC681. Well,
this
one doesn't use same reg. All transistors check good, apparently, with
meter. Same with diodes and zener diodes. 130 volt B+ is dead on so switch
mode PS seems to be fine.Any input on the 5 volt reg for this DS27590
would
be highly welcomed.

Danny