Question about ViewSonic N3235w 32" LCD TV

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My viewsonic keeps changing channels which makes it impossible to use. We've unplugged it and everything. once you power it on, thats all it does. it continueusly changes channels. please help

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The first thing to try is to see if a button is stuck on the remote or on the TV.
Remove the batteries on the remote and see if that helps. If it fixes the problem, you'll need to replace the remote.
If that doesn't help, look close at the buttons on the TV to see if one is jammed on. If changing channels continually up, then check the channel up button on the TV, if down then check the down button.
Worst case, you might have to take the back off the TV and unplug the cable feeding the external button panel on the TV and only use the Remote (for safety, rememeber to unplug the TV while doing any work on it).

Posted on Nov 28, 2013

  • Anonymous Oct 29, 2017

    Have the same problem. It is now 2017(LOL). Rubber buttons I see eventually will get stuck.It's a pain.

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SOURCE: How do I change the power supply for my Viewsonic N3760W TV?

YOU HAVE A VOLTAGE/CURRENT LIMITER PROBLEM THAT IS PROBABLY CAUSED BY A LEAKY CAPACITOR IN THE FEEDBACK CIRCUIT IN THE POWER SUPPLY. THIS CAN BE FIXED. I CAN GUIDE YOU IF YOU CAN SOLDER AND FIND THE PARTS- RADIO SHACK OR MABYE AN OLD TV AROUND?

Posted on Dec 27, 2009

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HnstTrstMe
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SOURCE: How do I change the power supply for my Viewsonic

Very carefully. I only would do it after you have verified the warranty is expired per Viewsonic. If it is OOW, then you can call them for a service manual that contains schematics, troubleshooting flowcharts, etc.

Posted on Aug 20, 2010

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