20 Most Recent ViewSonic N3250W Television - Page 7 Questions & Answers

Check whether the 'panel lock' function has been set to 'On'. Refer its user manual for details. If it is set to "On' make it "Off'.
Gopakumar Gopalan Google

ViewSonic... | Answered on Mar 16, 2014

Schematic diagrams are in PDF, and cannot include here by this window. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

ViewSonic... | Answered on Jan 09, 2014

check all your input/output connections & cables, then may be the Main PCB

ViewSonic... | Answered on Nov 30, 2013

If the fuse should blow up, surely there will be a reason for that. Any short circuit, overload etc: Check it. It is best to replace the back-light inverter board, rather than making "surgery" to it. For more information go to http://electronicshelponline.blogspot.com/

ViewSonic... | Answered on Nov 27, 2013

Unplug the TV from AC mains wall socket, and let it be in that state, for at least 30 minutes. This will make the TV to a hard reset. If it do not help you, make sure that there is some firmware corruption have been occurred, and need a firmware update.

ViewSonic... | Answered on Nov 27, 2013

Based on your description, it is possible that the power supply is starting to go. Before doing anything, first check to see if it is the TV or the source. Use a few different sources to narrow down the problem. You didn't mention what type of hookup you used from the receiver to the TV. Assuming you are using HDMI, it is possible that the cable is intermittent. Try using a different one. Also try as below.
1. Once the TV is working with sound, what happens if you turn the TV off and then back on, is the sound still there?
2. Use the TV antenna input to see if you can replicate the problem using an antenna. If the problem is indeed the TV, it should do the same with the antenna.

ViewSonic... | Answered on Nov 18, 2013

When you say no picture, I can only assume you mean that the set will not turn on. The most common problem with Viewsonic LCD TV's is in the power supply. Depending on your level of repair knowledge, you can either replace or repair the power supply. For more info, post the model number and include a better description of what the TV does or does not do.

ViewSonic... | Answered on Nov 18, 2013

The most likely problem is the power supply.

ViewSonic... | Answered on Nov 13, 2013

I see so many here with no sound/nopicture issues:


1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have to buyand try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.If set is opened at least look for puffed up and bad caps like in thisphoto.6_17_2012_2_14_45_pm.jpg6_17_2012_2_15_03_pm.jpg

ViewSonic... | Answered on Oct 25, 2013

These are the codes to check with Viewsonic Brand TVs. 2860.2869.2849,2893. If you wish to get more details, check these sites. Setup code list, and setup procedure to many popular remote controls are given. http://remotesearch.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.

ViewSonic... | Answered on Sep 28, 2013

Okay here's the fix.
Remove batteries. Re-install them wrong side in! Don't panic.
Reverse the direction of both the battery cells and install. Press "Power" button a couple of times and a few other buttons a few times. Then remove batteries and re-install the right side in.

ViewSonic... | Answered on Sep 28, 2013

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