20 Most Recent Zenith P42W34P 42 in. EDTV-Ready Plasma Television Questions & Answers


Black stripe down TV plasma screen

I'm sorry you have not been given a clear ansewer on how to repair your TV. I know how to fix the problem you are having (1.5 inch Black vertical lines that come and go) If you still need help fixing your Plasma TV please feel free to message me @ [email protected] or just give me a call @ 1-503-432-9904 and I'll help you fix your TV buddy! Ask for Dave!

Talk to you later buddy!

[email protected]
11/27/2021 7:21:25 PM • Zenith P42W34P... • Answered on Nov 27, 2021

When i turn tv on it adamaticly turns off and red light turns on

Try a power drain first: 
1. Unplug the product's power cable so that the device is not grounded to the house.  Do not simply turn off the power-bar if one is in use.
2. Press and hold in the products power button for 1 minute to release the retained electricity from the capacitors and circuit board.3. Plug the product back into the wall outlet rather than a power-bar to rule it out of contributing to the problem and turn the device back on.
If this still doesn't help, you probably have a power supply or mainboard issue preventing the TV from fully powering on.
5/31/2014 10:14:51 PM • Zenith P42W34P... • Answered on May 31, 2014

I have 2 thin vertical lines, center and right

You can certainly try a lower x buffer board but the panel could also be at fault!!!
10/30/2013 5:41:59 AM • Zenith P42W34P... • Answered on Oct 30, 2013

My screeen is dark and want brightness up.

There are so many reasons for lack of brightness to Plasma displays. If you wish to get more, check this site. It has screen shots to defective plasma displays, to which you can compare them to that of your TVs. In most cases, faults occur to all plasma displays will be similar, regrdless of its Brand. http://electronicshelponline.blogspot.com/ Pull up previous posts by its left sidebar, or type in the brand name and model number to of your set, to its search box, and press 'Enter' or view it in Mosaic / Timeslide option.
9/22/2013 1:01:32 PM • Zenith P42W34P... • Answered on Sep 22, 2013


Be the first to answer 1/27/2013 12:21:12 AM • Zenith P42W34P... • Posted on Jan 27, 2013Be the first to answer

Zenith flat screen stand cant mount it on back

What exactly are you trying to mount it to? if you are trying to wall mount it make sure the mounting kit lists your television as cooperating. Some universal kits only use certain configurations as there is no standard between televisions as to where the screw mounts are on the box, this may cause you to need a specific kit.
1/21/2013 8:36:27 PM • Zenith P42W34P... • Answered on Jan 21, 2013

Vertical Black line 3 inch width on Plasma Samsung 42C96HD after 2 months of use

I also have the same problem I phoned Samsung today to explain the tv was only 14 months old, they didn't wanna no because it was out of warrenty by 2 months. I am getting a black solid line down the left hand side of the screen. I ended up phoning Dixons were we bought it from, they have told me to get an independent engineers report done & send the report to them within 14 days. Dixon told me it was a known problem with Samsungs. They said they will fix it free of charge if they can if not they will send vouchers to the same value of the television. So beware stay clear of Samsungs.
12/29/2010 10:38:19 AM • Zenith P42W34P... • Answered on Dec 29, 2010

The SONY LCD TV is 2 1/2 Years old about 6 months

The line or dots on an LCD screen are because of dead pixels and tolerable upto a certain limit as per policy of the manufacturer. But line is not permissible and should be changed in the warranty support. The isssue you are reporting is the vertical line and the the film is to be changed. So if the set is not in warranty it might be a big expense as there is no way to fix it at home.
10/13/2010 12:44:10 AM • Zenith P42W34P... • Answered on Oct 13, 2010

Zenith P42W34 EDTV Plasma Black Line

Just reheat and add soder to fuse connected behing the driver boards.
8/7/2010 7:25:17 PM • Zenith P42W34P... • Answered on Aug 07, 2010

Black vertical line 2 in wide on zenith p42w34p

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!
5/11/2010 4:28:30 AM • Zenith P42W34P... • Answered on May 11, 2010

P42W34 Green Screen with Black Vertical lines across display

You have a bad YSUS board. This does all the data display to the upper and lower driver boards. This is a common problem and not a hard fix, especially if you have already replaced the main board and control board. The place you obtained the two boards should have this but my favorite for cost and availability is http://www.encompass.com . They also have the best research department.Let me know if you need more help. Thanks for using FixYa and for the generous rating.

4/3/2010 5:07:50 PM • Zenith P42W34P... • Answered on Apr 03, 2010

Removed all inputs to main

You did not indicate what the "Problem" is?
Hi, well I applaud you for starting in the right place, The power supply, as, if, that isn't right nothing else can be. But you simply cannot do anything without a Service Manual. In this it has everything one needs to repair the set. OK if it is shutting down, after that amount of time, of working and then faulting, then it is most definitely a "Thermal" problem, the way we "Find" problems such as this is "Freeze Spray" you use this on each component that is suspected of being the "Culprit" and you will soon,find that errant component. Now also not every fault is a Capacitor, I see many, many people that think, that Capacitors are always the "Culprit" now while that may be true in a few cases, a faulty Electrolytic Cap, or ordinary, Cap goes faulty, this is only a SYMPTOM, something has damaged those caps causing them to "Fail". One MUST always find the root "Cause", otherwise if you just treat, the SYMPTOM, the "Cause" will just make the "Symptom" come back, in short order, as the prime cause still, hasn't been fixed., Now Capacitors hate AC ripple, or Over Voltage. Thats it. Oh.. and Heat, if these Capacitors, are too close to a Heat Source, then thats a prime cause of failure. Resistors, hardly ever go faulty,and if they do, it is generally obvious. However it doesn't hurt to check values with our Multimeter. Remember though resistors are made, with up to 20% tolerance from stated value, as such, are not too critical, unless in Timing circuits etc. Always check, the Values, of resistors, as with any other component, with the power OFF. Now Diodes especially "Zener Diode", are another thing to check, those and ordinary "Signal Diode" should always be suspect. next we have Transistors and IC's. The Transistors MUST ALL be checked to see if they have a good, "Junction" this is done, with our meter set to "Diode Test" and usually are about 0.6 to 0.7. With IC's you must check, voltage levels, or Logic Levels, going in and out, have a look at the circuit diagram, and it will tell you what they should be. It is a good idea to always measure the Power Supply voltages, see if a "Rail" is Low, that will be because some component has gone somewhat or all short circuit, to Earth, now, if the "Rail" is Higher, suspect an "Open Circuit" component, like a Diode, or Transistor. The voltages expressed in the manual are spot on, ANY variation MUST be investigated. I have been doing all this for over 30 years now, and I do indeed wish, we could have a set of "Symptoms" and be ables to say.. "Oh that;s the so-in-so and replace this" however unfortunately this although does happen, most "Symptoms" can have literally tens, of "Causes" all often "Interlinked" One simply has to do a methodical troubleshooting procedure, and always think, "are my Voltages Correct" as this is how, you Fix the problem, by making them so. Keep up the good work. If that link above doesn't furnish a Service manual, it is imperative you get one, even if you must pay for it. It will pay for itself in about 2 mins.
4/2/2010 2:29:16 AM • Zenith P42W34P... • Answered on Apr 02, 2010


The TV should be still under warranty. Most of the flat panel TVs come with a one year warranty from the manufacture. I wouldn't mess with the to void the warranty.
The problem most likely is the buffer/scan boards on the bottom connected to the screen. It controls the vertical image on the screen. The other possibility is the plasma display panel is bad.
Go the warranty route first. This may get expensive to fix.
4/1/2010 7:01:03 PM • Zenith P42W34P... • Answered on Apr 01, 2010
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