Question about Proview PA-32JK1A 32 in. LCD Television

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Proview rx 326 model 3200 tv sound but no picture

My proview rx 326 has sound but no picture just a black screen. I tried unplugging everything and plugging it back in and a few other things, how do i fix it please???

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  • lalas3816 May 27, 2008

    Is That Expensive? There Was No Warning At All. I Came Home, Turned On The Tv & Could Hear It But The Screen Was Just Black. Is That What Happens?

  • ferm12 Aug 13, 2008

    I have the same problem. I have a RX-326 32" Wide HD LCD TV with sound but no picture, that is to say a black screen only.
    Please tell me what to do.


  • mikmar Aug 20, 2008

    I have the same problem. No picture but have sound. I can shine a flashlight into the panel and see the menu displayed. Their are two connectors on the inverter that carry 24V dc power. The 24v signal is their their is also a white and yellow wires in one of the connectors that I believe carry the sync signal the inverter needs to start. I measure nothing on these two wires. Does anybody know what chip drives this sync signal? I checked the power supply and the inverter board and cannot find anything wrong. So now I am moving onto this sync signal. I think I should get around 5v. But, I am not sure. Any help will be much appreciated. Thanks. If anybody has any schematics for this proview TV it would help tremendously.

  • Anonymous Dec 22, 2008

    I bought a 32" LCD T.V. Proview RX326 -3200 two years ago. When I got home to watch football turned on the T.V. the
    picture suddenly went blank. There is no picture or any light or blue screen. What is weird about it is the sound is working. The sound is working on any channel but no picture. So, I turned on my DVD player and played a dvd movie . Still, no picture but has sound of the movie.



    What can I do to fix it. Is it normal for it to lose picture
    after only two years? Is there a part that I can buy to
    replace. Please, help ..I really appreciate it.....

    Thank You,

  • Anonymous Feb 18, 2009

    I came home a few nights ago and my screen was black. No sound nothing...what can I do its only a couple of year old and I purchased it new

  • rmzgrefsrud Mar 03, 2009

    Proview RX-326 3200 - TV has sound, but no picture. Worked fine this morning, but not this evening. I hear a slight ticking sound with the power on and silent with the power off.

  • Cedric Hamilton May 11, 2010

    What capacitors? All of them or just some of them? I have the rX-326 model 3200. It has a small power board on it which takes an act of congress to get to. Then a board with a bunch of chips on it right beside of it which produces a green LED when power is sent to the power board. Then the HDTuner next to it. I am only getting 12 VDC on the right hand side of the power board.it is a 9-pin connector. On the other side it is a 10 pin connector and I am getting only .03 volts. Is the .03 volts regulated until everything is working properly? Not sure of the issue.

    Thanks,
    Ced

  • sil2222 May 11, 2010

    mikmar solution posted above is bogus f1 on power supply is not a smt fuse this is not right info i have looked and used 3 different power supplies and all fail the same no picture next i will be testing main board i am starting to think the main ic pin connectors might be loose from heat but not sure yet i will post fix when i finish this tv repair.

  • Anonymous Apr 01, 2014

    Hi how are u my name is jav I have a proview 3200 white lines pop up and I here a loud sound then I have to unplug it for a few and then plug it back it will work for a while with no issues then it happens please help

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I just fixed my proview 3200 that doesn't have picture but with sound.
First, thanks for the tips I got from this forum. I checked the 24v from the power supply board and that's perfectly working fine. I then check the fuses in the Inverter board. There are 4 white fuses (2amp I guess, i cant remember) and 1 black fuse (1amp/76v just behind the wire connector going to the power supply board). The black fuse is the one that blown out on my tv. This fuse supplies power to the LM358A IC. I know its not right but I just solder a thin piece of wire to short circuit this fuse. I'm lazy to drive to RadioShack to find this fuse. :)
....and that worked beautifully. Check the picture attached for what I did.
proview rx 326 model 3200 tv sound but no picture - 66c42e5.jpg

Posted on Jun 22, 2009

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  • Proview Master
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You can check this article which addresses several different problems encountered with Proview RX-326 / 3200:

http://blog.coppelltvrepair.com/2011/06/proview-3200-rx-326-does-not-power-on.html

Hope it helps...if it does please do not forget to rate it :-)

Posted on Jun 08, 2011

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If the sound is working, I doubt the power supply is at fault. You can check with a simple voltmeter - red is positive, black negative - there should be 24VDC. There is an on-board regulator to drop the voltage for the CPU, etc, . THere is a green LED on the main board, so even if you don't have a Voltmeter, there is a visual indication that the power supply is somewhat functional.

I found a poor connection from the 24V power supply over to the inverter boards. I re-crimped the IDC connectors to the 24V supply and all was happy-town.

Posted on Jun 05, 2008

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My board looks different. my tv is manufactured in 2005. thanks

Posted on Nov 30, 2009

  • Zcrazy Nov 30, 2009

    TreF68 my board looks different then the picture. The manufactures date on my tv is 2005. Can you help please

  • bock1 Mar 18, 2011

    I think i have the samwe board did you find any help?

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To clarify where the inverter board is exactly:

When you open the TV there are two basic parts inside. the back part has the power source, inputs etc. The front LCD part is where the inverter board is.

There are four screws that hold the LCD portion in (this is after you have taken the front plastic shell off). after unscrewing the four screws, there are 3 or so plugs that join the two halves electronically. Undo them and make sure to place some marker so you know exactly where they go, (i used electrical tape to indicate the top plug). CAREFULLY lay the LCD screen side down. On one side there is a board with a black plastic sheath covering it. That is your inverter board. There are six or so screws and a bunch of plugs. after unscrewing/unplugging the board pull the black plastic off from the back. There is no need to cut it as it un-sticks, which makes putting it back on easy. when you have isolated the inverter board check out sdsupnet's pic located on this page. By looking at his pic you can easily identify the open fuse on your inverter board. Feel free to bypass it just to see if you can get the TV working, but i would recommend putting a fuse in there perminently.

Generally, it is a bad idea to bypass fuses for extended periods of time, as they are there to protect more expensive components. I have found a 1 amp 125 volt fuse that should at least help protect the board. here is the link.

http://www.mouser.com/ProductDetail/Littelfuse/R452001L/?qs=sGAEpiMZZMseCiJT91fwIjhuN2GIXrFZOd5B2WGSkTg%3d

The fuse here has a time-delay feature. The unique time delay feature of this fuse design helps solve the problem of nuisance “opening” by accommodating inrush currents that normally cause a fast-acting fuse to open. IMO this is a good thing, if you don't think so, find your own fuse :P.

hope this helps


Posted on Sep 30, 2009

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I had the exact same problem. I found a black tiny surface mount fuse that had the marking 20 on top was bad. The rating is 1amp at 76V. It is right next to the bottom connector and is marked as F1. Luckily I had one rated at 1amp and 125V. Works great now.

Posted on Aug 25, 2008

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Where do you get the power supply board

Posted on Nov 05, 2008

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I had a similar problem of sound but no picture. After 45 minute wait for tech support found out it would cost $495 for parts and $300 for labor to fix. No support for this brand x. 3 year total loss.

Posted on Sep 04, 2008

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  • Master
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Capacitors on the power supply board have gone bad there is no easy fix for this except replacement of the capacitors (soldering iron) or replacement of the power board.

Posted on May 27, 2008

  • Scott Hill
    Scott Hill May 27, 2008

    yes I am afraid that is what happens without an uninteruptable power supply to smooth out the electricity we get from the power company the capacitors have a very hard life, in addition some of them are really just cheap junk, electronics techs are not inexpensive but sometimes you can just have them buy a new power board on ebay from shop jimmy and if one is there it usually does the trick. good luck

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