Hi Folks. I'm posting here as a last resort, i've spent more time on
this tv it ever worths, but money isn't the point more that i wouldn't
give up. I hate spending time on something and give up on it at the
end argh.

Ok here's my issue, i have a 1996 Sony KV-35V45 CRT, some friend gave
it to me. At first, tv was Greenish and flashing on and off. Also,
when set on tuner, image was kinda pinkish instead of white and black.
So i read a bit online, and it seems i've got a green Cathode (KG) to
Heater short.

After checking the voltages, i've found the KG signal on the crt neck
jumped from 109 to 209V. The other ones were stable. Some guy on
another forum tells me, that it's KG to K shorted.

First thing ive tried, after reading, was to tap on the crt neck. It
worked a few times.. for max an hour. Sometime i tapped on it a few
times, had a nice spark, image got clean and nice... But it never
lasted.

So i went and found a CRT rejuvenator, made myself an unversal adapter
for it with the proper signals. It's a B&K model 467 rejuvenator. It
was unable to clear the short on it. But after giving it a shot, the
TV was much better, having a black background instead of the greenish
one i've used to have. For a few minutes.. a spark occured in the CRT
neck again, and back to square one.

So then i read that if i put the tv on it's front and tap on the neck
with CRT board removed, i can clear the particles out and that might
do it. Did that, and now the TV wont get outta standby, and i don't
see the heater glowing up (?) anymore, even with CRT rejuvenator
hooked up. It's like knocking on the CRT neck pushed the short even
worst..

Even the 'restore' more of the rejuvenator wont show any activity when
i push on any of the 3 color guns button. It used to do before i did
the tap on the neck thing.

If anyone could clearly tell me what happened, and if i can do
something, i'd really appreciate it. Else, i'm giving that tv a trip
to the dumpster, but i'd seriously hate to. I have no tv repair
experience, i'm learning with that one (ok i'm a little late, but i
guess it'd serve me for something else someday).

Thanks in advance, Vincent.

It sounds like the filaments burned out in the tube or one of the
filament pins sticking out of the tube pulled loose and came unconnected
..

Well, i can still see a 4 OHM resistance on the heater pins, would
that change if one of the filament pins had came loose ? Thanks.

On 26 août, 09:57, (Ken G.) wrote:
It sounds like the filaments burned out in the tube or one of the
filament pins sticking out of the tube pulled loose and came unconnected
.

Oh well, you was right. I didn't check well it seems the first time. I
can SEE one of the 2 filament pins at the very end of the tube where
the pins are, the metal there is broken and disconnected. No
continuity there anymore. I've broken the heater connection. Time for
junk i guess ! That's a sealed part, is it ? Thanks.

"cheebster" wrote in message
oups.com...
Oh well, you was right. I didn't check well it seems the first time. I
can SEE one of the 2 filament pins at the very end of the tube where
the pins are, the metal there is broken and disconnected. No
continuity there anymore. I've broken the heater connection. Time for
junk i guess ! That's a sealed part, is it ? Thanks.



Yep, the entire CRT is one piece of glass with a hard vacuum in it. Those
35" Trinitron tubes are notorious for failing, the 27s are much more
dependable.

On 26 août, 18:49, "James Sweet" wrote:
"cheebster" wrote in message

oups.com...

Oh well, you was right. I didn't check well it seems the first time. I
can SEE one of the 2 filament pins at the very end of the tube where
the pins are, the metal there is broken and disconnected. No
continuity there anymore. I've broken the heater connection. Time for
junk i guess ! That's a sealed part, is it ? Thanks.

Yep, the entire CRT is one piece of glass with a hard vacuum in it. Those
35" Trinitron tubes are notorious for failing, the 27s are much more
dependable.

James, i'm looking in the ads here for used tv's, and some folk sells
a 27 incher XBR sony, dating 1997 (mine was 1996). He's asking 100$
canadian bucks for it. Is it a good buy, less chances that one would
fail like the 35 inch one ? I could do a clean/balance on it using my
rejuvenator even to give it a cleaner picture, was wondering if it was
a good idea also. Would appreciate any input, thanks again !

Your set needs a new picture tube. There is "no other solution". After all
the fooling around with it, it is possible that some of the drive components
on the CRT board are also damaged. When I have had shorts in the CRT,
sometimes there has been damage on the CRT board.

It's time to retire the set, and get a new one!

--

JANA
_____


"cheebster" wrote in message
ups.com...
Hi Folks. I'm posting here as a last resort, i've spent more time on
this tv it ever worths, but money isn't the point more that i wouldn't
give up. I hate spending time on something and give up on it at the
end argh.

Ok here's my issue, i have a 1996 Sony KV-35V45 CRT, some friend gave
it to me. At first, tv was Greenish and flashing on and off. Also,
when set on tuner, image was kinda pinkish instead of white and black.
So i read a bit online, and it seems i've got a green Cathode (KG) to
Heater short.

After checking the voltages, i've found the KG signal on the crt neck
jumped from 109 to 209V. The other ones were stable. Some guy on
another forum tells me, that it's KG to K shorted.

First thing ive tried, after reading, was to tap on the crt neck. It
worked a few times.. for max an hour. Sometime i tapped on it a few
times, had a nice spark, image got clean and nice... But it never
lasted.

So i went and found a CRT rejuvenator, made myself an unversal adapter
for it with the proper signals. It's a B&K model 467 rejuvenator. It
was unable to clear the short on it. But after giving it a shot, the
TV was much better, having a black background instead of the greenish
one i've used to have. For a few minutes.. a spark occured in the CRT
neck again, and back to square one.

So then i read that if i put the tv on it's front and tap on the neck
with CRT board removed, i can clear the particles out and that might
do it. Did that, and now the TV wont get outta standby, and i don't
see the heater glowing up (?) anymore, even with CRT rejuvenator
hooked up. It's like knocking on the CRT neck pushed the short even
worst..

Even the 'restore' more of the rejuvenator wont show any activity when
i push on any of the 3 color guns button. It used to do before i did
the tap on the neck thing.

If anyone could clearly tell me what happened, and if i can do
something, i'd really appreciate it. Else, i'm giving that tv a trip
to the dumpster, but i'd seriously hate to. I have no tv repair
experience, i'm learning with that one (ok i'm a little late, but i
guess it'd serve me for something else someday).

Thanks in advance, Vincent.