Check the filtering capacitor in the g2 circuit on the neckboard.Common
fault.
Cheers
Joe
"James Sweet" wrote in message
news:bnPwb.231045$ao4.831152@attbi_s51...

"ND" wrote in message
om...
Hi,
I have a 27 inch Panasonic, PIP tv(around 9 years old). Here is the
problem
This was some time back, When I turn on the TV, picture comes up but
in 5-10 seconds slowly fades away till there is blank screen, the sound
is
fine.
Now if I turn off the TV and turn it back on the picture doesn't come.
If
I
keep the TV
plugged out for a long time and try it again the above behaviour is
repeated(picture comes up and fades out).
This has gotten worse and worse, and now when I turn on the TV even
after
keeping it plugged out for a long time, the picture does not come up.
I dont know much about TVs but I after reading some of the posts on this
newsgroup, I opened up the TV to check two things, to see if there are
bad
solders at the board that hooks up with CRT and to see if I turn on the
TV,
at the end of CRT if I see orange glows. The solders look ok to me but
when the
TV is on, I dont see any glows in the glass tube at the end of CRT.
What could be the problem ? Is there anything I can do to repair this
TV.
Thanks in advance for your help.

-ND

Sounds like the CRT heater is definitly losing power. The problem is
probably solder joints, but if those on the neck board are fine they're
likely on the main board, look in the vicinity of the flyback transformer,
or better yet, trace the wiring down to the main board. On a 13" TV/VCR
combo I fixed that had been dropped, I had no heater power, but the main
board was very difficult to remove to further inspect so I simply wrapped
2
turns of wire around the flyback core and soldered those to the heater
pins
on the CRT board, this added secondary was just right to power the heater.
Careful not to go overboard if you try this, 2 turns is usually plenty, at
most 3, you can best judge the voltage by inspecting the glow in the tube.