Zenith P42W34P 42 service manual

In my Professional opinion of which I repair these all day long, NO Plasma 3-4 years old is worth that amount of money. The first time it goes down you "will" put it to rest....Guaranteed!
Please don't do it!

Turn off the TV then unplug it. Disconnect the cable connection and clean the terminals. If the stripes still exist, you have a bad TCP (tape carrier package). It is responsible in transmitting color information to the display panel from the X-Drive (A-Bus) Board. This is not an easy repair. Service of an experienced or a qualified technician is recommended.

your upper and lower buffer boards are bad. and possibly your controller board. do you know a qualified tv service technician in your area ?

Hello, I can help you fix your plasma TV. If you have Black vertical 1.5 inch line/s that come and go. Please feel to call or message me at 1-503-432-9904 or [email protected] Ask for Dave! Later guys!

go here, it will work.  follow closely and read entirely!  it worked for me on a gateway plasma!
http://www.avforums.com/forums/plasma-televisions/462873-black-line-fault-hyundai-hpt4240-fixed.html

enjoy!
stephen

Before Opening, double check something for me and post a follow up. I have this tv and I believe it has dual power buttons. One main and one secondary. A remote can't turn it on unless the main power button on the bottom left is on. 
Please post follow up.

I would really like this tech servic manual also, please [email protected]

Check to make sure your cabling is correct if you are using component input.

I have a pdf file of the service manual- if you want it, let me know where to send it.

could be a loose ribbon cable on a buffer board, or one of the buffer could be going bad