Question about Vizio P2 42 in. HD-Ready Plasma Television

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My Vizio P42 plasma has no picture but has sound. I removed the back panel and removed fuse FS1 on the Y sys board as well as fuses FS1 & FS2 on the Z sys board and they passed the continuity test. I also did continuity on surface mount fuse FS3 on the Y sys board without removing it from the board and continuity was ok and the same with FS3 on the Z sus board. I know that testing a fuse on the board is not the best way but it seems that it is the only way to do it on the surface mount fuses.

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Posted on Jan 02, 2017

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SOURCE: RE: Vizio P42ED Plasma TV

Just took the unit apart recently haven't tested the heat sinks and I don't see any error codes. None of the video inputs work but I do get sound from the RF input audio. I have not connected anything to the RF video input for actual video but will try. Right now I'm guessing it is the main input video board but the part nunber on the board does not match that of the parts distributor.

Posted on Dec 08, 2007

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SOURCE: vizio p42

my 42 also went black, and the "vizio" logo in front indicates as if it is turned on, it clicks on and off, but just has no output on the screen, meaning not a black screen, just a dead, no image, even when the system has clicked on

I tried turning off, on, unplugging, letting it sit (kind of like a reboot wishful thinking), removed all connections in back, (nothing still, not even the blue screen) just nothing.

What a shame, I had the unit less than 6 months, and now this? I have work to do, and I can't get it done.

Posted on Mar 23, 2008

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SOURCE: SMPS power supply for Vizio p42

Sure:
http://www.vizio.com/support.aspx
Call the support phone number early in the morning!
solutiondoct

Posted on Nov 11, 2008

  • 1 Answer

SOURCE: Vizio P42 Plasma HDTV10A

THE CABLE INPUT IS SERVED ON 22" VIZIO HOW AND WERE CAN I GO TO FIX THIS PROBLEM IN ATLANTA

Posted on Nov 13, 2008

phongnv
  • 56 Answers

SOURCE: vizio p42 very dark screen backlight off

There is no back light in plasma TV, Base on the description, the Z Sustainer board is bad. Replace the board will fix the problem.

Posted on Feb 17, 2009

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Vizio P42 HDTV poor picture


Check the Vs & VA voltages to the panel. If found abnormal, try to adjust it to specified value. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Adjustment procedure to this voltage is similar to all plasma displays, and guidance to one brand can be taken as reference. Adjustments to this voltage is given by one among the posts. Details too are given with illustrations. The given details are for panasonic plama TV. Refer it. You's get an idea about this voltage adjustment. If you can't adjust it to proper value as suggested, the main power supply board need replacement. Even after replaced it with a new board, this adjustment should be done again. This is a crucial adjustment to all plasma TVs.

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Model? what if any lights on front of set come on? If total dead unplug and look for fuse connected where power cord enters set, as much as I can suggest without more info.

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The screen just turned black and I could still hear sound but now I can't. I did change the input to check if it was the cable box so that covers the sound but I still cannot even get the sound back now...


Hello, My names Dave and I can tell you that you all most likely have a bad Z sustain or Y sustain board! The good news is that most of the time if either of these boards are bad you will find a blown fuss one them! I have worked on this same model of TV many times! You can lay the TV face down very gently and remove the back cover from the TV and test the fuses on the Z & Y sustain boards to confirm which one of the two are bad!

Z sustain board! P/N's: 6871QZH956A or 6871QZH056B Here is a link to the Z sustain with a picture of the board so you'll know what you're looking for http://www.shopjimmy.com/lg-6871qzh056b-zsus.htm

If you look at the Z sustain board you'll see that there are two white fuses on the board FS1 & FS2 are the location #'s. There is also a third fuse (FS3) it is a surface mount type fuse and can be easily over looked. Just locate the 8 pin main plug right next to the other two fuses and you can't miss it. It's smaller and it will have gold2_bing.gif colored ends on it and it to is white with the location # FS3 next to it!! If any of these fuses are blown you will need to replace the board to complete the repair! You will need to test the fuses for continuity with a DMM (Digital Multimeter) Do to the fact that you will not be able to just look at the fuses and be able to tell if they are good or bad!

You'll also want to test the three fuses (FS1, FS2, FS3) on the Y sustain board P/N's: 6871QYH953A 6870QYH005B ! Here's a link to a picture of this board also. http://www.shopjimmy.com/catalog/product/view/id/179043/s/ysus-6871qyh953a/

Two of the fuses (FS2 & FS3) on the Y sustain are easy to find because they are normal white fast acting type fuses! The third fuse is also a surface mount type fuse and can be easily over looked. Just locate the 9 pin main plug right next to the other two fuses and you can't miss it. It's smaller and it will have gold colored ends on it and it to is white with the location # FS1 next to it!

If any of these fuses are blown you'll need to replace the board to complete the repair! You will need to test the fuses for continuity with a DMM (Digital Multimeter) Do to the fact that you will not be able to just look at the fuses and be able to tell if they are good or bad!

If you have any questions please feel free to contact me via www.pleasefixitdave.com there you will find all my contact info!

Dave~

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2 Answers

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First you have to check if voltage and data are ok at the Y sustain board and the Y driver boards are not running hot. Even if you know how to replace these panels you must have a scope to adjust the v-set up and v- down. Not just a simple PNP. Trouble shooting a plasma is not a short time process to do it correctly. Please let a service center look at it for you.

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yes you need to check the power supply board going to the pitcure tube board common problem bad transister

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7 Answers

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Just had the same problem and determined it was the primary power supply board. The TV has a primary and secondary power supply. The secondary controls the on/off and audio. The primary controls the picture. If this is shot, you will not get a picture but will hear audio. I had to call Vizio and have them send me a new power supply board ($150 + SH). Not too hard to install yourself. Hpe this helps!

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1 Answer

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IT is the Y Sustainer board blowing fuses. IT has 2 fuses. I have worked on severl of this model and the Y Sustainer board goes bad and blows the fuses.

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