Zenith SL2773W - No More Green

[Leo J. Hart IV]

Hello,

I am hoping one of you electronics gurus could help me out...

The other night I was watching my Zenith 27" TV (SL2773W), when it
started flashing green. The picture disapeared for a moment and then
reappeared, but now everything looks darker, mor of a purple-red tint.
Images that used to come in yellow now come in magenta. Overall,
everything seems to have a reddish tint now.

I looked out on usenet for a thread related to this problem. Here's
what I found:

http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=ps%25e7.109646%24EP6.29001100%40news1.rdc2.pa.home.com&rnum=1&prev=/groups%3Fq%3DSL2773W%26ie%3DUTF-8%26oe%3DUTF-8%26hl%3Den%26btnG%3DGoogle%2BSearch

I tried going into the menu like someone suggested. What I saw was
that the blue letters look perfect, the green letters look perfect,
but that the red letters, though visibly red, were somewhat blurred.

So what could this mean potentially? Is the TV dead or is this
something I can get repaired relatively inexpensively?

Thanks for your help,
Leo Hart

 

[Sofie]

Leo J. Hart IV:
Most likely a bad CRT.... or could be something much simpler like a bad
driver transistor at the neck board or a pre-driver transistor on the main
pcb by the jungle chip.
Some basic test equipment like an oscilloscope and DMM and the proper test
and safety procedures performed a knowledgeable and experienced television
repair tech can give you the answer after some brief troubleshooting at a
repair shop. Only then can you make an intelligent repair decision after
you get the facts.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -


"Leo J. Hart IV" <leo.hart@fmr.com> wrote in message
news:b6bda431.0403021038.195f04d7@posting.google.com...

Hello,

I am hoping one of you electronics gurus could help me out...

The other night I was watching my Zenith 27" TV (SL2773W), when it
started flashing green. The picture disapeared for a moment and then
reappeared, but now everything looks darker, mor of a purple-red tint.
Images that used to come in yellow now come in magenta. Overall,
everything seems to have a reddish tint now.

I looked out on usenet for a thread related to this problem. Here's
what I found:


http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=ps%25e7.109646%24EP6.29001100%40news1.rdc2.pa.home.com&rnum=1&prev=/groups%3Fq%3DSL2773W%26ie%3DUTF-8%26oe%3DUTF-8%26hl%3Den%26btnG%3DGoogle%2BSearch

I tried going into the menu like someone suggested. What I saw was
that the blue letters look perfect, the green letters look perfect,
but that the red letters, though visibly red, were somewhat blurred.

So what could this mean potentially? Is the TV dead or is this
something I can get repaired relatively inexpensively?

Thanks for your help,
Leo Hart

 

[RonKZ650]

Yes, it could be a drive problem or the picture tube. I'd say chances are about
99% bad tube 1% drive problem on that model. It's not been one of Zeniths
better sets.
Ron

Most likely a bad CRT.... or could be something much simpler like a bad
driver transistor at the neck board or a pre-driver transistor on the main
pcb by the jungle chip.
Some basic test equipment like an oscilloscope and DMM and the proper test
and safety procedures performed a knowledgeable and experienced television
repair tech can give you the answer after some brief troubleshooting at a
repair shop. Only then can you make an intelligent repair decision after
you get the facts.
--
Best Regards,
Daniel Sofie
Electronics Supply & Repair
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -