I've a 27" JVC AV-27820 TV that has a band of lines running across the
bottom. The lines vary in width but are generally thin and dance up and
a bit withinthe band. The band started at the very bottom, but has
expanded to fill up the bottom quarter or third of the screen over the
last few weeks. The only other relevant fact is that jiggling the power
cord can reduce or eliminate the band temporarily, for a few second to
a minute. If I had to guess, I'd say that It looks like vertical height
adjustment is too great, but of course there is no vertical height
adjustment on the TV.

I'd appreciate any idea on how to fix it. Needless to say, going to a
repair shop is out of the question. It would cost more than the TV is
worth.

Looks like the frame IC is either faulty or has dry joints. Its common for
them to run hot and fracture the leg soldering. The chips not too expensive,
but requiressomeone good at soldering to change it

Cliff

"Hex" wrote in message
oups.com...
I've a 27" JVC AV-27820 TV that has a band of lines running across the
bottom. The lines vary in width but are generally thin and dance up and
a bit withinthe band. The band started at the very bottom, but has
expanded to fill up the bottom quarter or third of the screen over the
last few weeks. The only other relevant fact is that jiggling the power
cord can reduce or eliminate the band temporarily, for a few second to
a minute. If I had to guess, I'd say that It looks like vertical height
adjustment is too great, but of course there is no vertical height
adjustment on the TV.

I'd appreciate any idea on how to fix it. Needless to say, going to a
repair shop is out of the question. It would cost more than the TV is
worth.

Hex wrote:
I've a 27" JVC AV-27820 TV that has a band of lines running across the
bottom. The lines vary in width but are generally thin and dance up and
a bit withinthe band. The band started at the very bottom, but has
expanded to fill up the bottom quarter or third of the screen over the
last few weeks. The only other relevant fact is that jiggling the power
cord can reduce or eliminate the band temporarily, for a few second to
a minute. If I had to guess, I'd say that It looks like vertical height
adjustment is too great, but of course there is no vertical height
adjustment on the TV.

I'd appreciate any idea on how to fix it. Needless to say, going to a
repair shop is out of the question. It would cost more than the TV is
worth.


I have a JVC AV-27770 that was having similar vertical deflection
problems. Tapping on the cabinet or gently lifting up one corner of the
set and setting it back down would sometimes correct it temporarily. It
turned out to be bad solder joints on the back of the small PC board
that connects to the CRT.