20 Most Recent ViewSonic N4785p 47 in. LCD TV Questions & Answers

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Screen has been washed with window cleaning solution & now has a shadow

You probably used too much liquid and it has now seeped inbetween the display screen and the backlight panel. You would have to fully dismantle the TV and Screen to do this (not recommended unless you know a lot about TV repair).Some of the liquid might evaporate over time but it is not likely to return to it's original state.
11/18/2013 3:21:53 PM • ViewSonic N4785p... • Answered on Nov 18, 2013
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Any button on the remote brings up the menu screen

there might be a problem on your remote control open the casing of your remote control and clean the butoons contact point wipe it with a cloth or spray it with a contact cleaner..be carefull of cleaning the contact they are just carbon contact dont wipe too hard carbon might include....use cleaner that instantly dries up.
10/5/2013 2:37:42 AM • ViewSonic N4785p... • Answered on Oct 05, 2013
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My Viewsonic 4785P is out of warranty. Problem is

A problem like this can be caused by RF interference. Shut it all down again and move the converter, any cordless or cell phones, wireless PC's, routers, etc. so nothing is within 3 feet of your set. A poor ground on your converter can also cause RF interference. Make sure you have a grounded plug going to it, and it is connected to a grounded wall outlet....likewise for your set....and by no means have it near a microwave oven!
4/10/2011 2:42:37 AM • ViewSonic N4785p... • Answered on Apr 10, 2011
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Input window is continuouosly on

usually this is cleared and restored with a display button on the remote or within the display menu on the set
12/30/2010 5:12:00 PM • ViewSonic N4785p... • Answered on Dec 30, 2010
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Replacement mainboard for viewsonic n4785p lcd tv

Go to store.viewsonic.com then find the link to the parts store at the bottom of that page. 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.
8/20/2010 7:56:06 AM • ViewSonic N4785p... • Answered on Aug 20, 2010
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Dark shadow in middle of TV when turned on . Last...

the cold cathode lamp of your tv is nearly to be busted and needs replacement..tnx
6/5/2010 5:26:41 AM • ViewSonic N4785p... • Answered on Jun 05, 2010
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No picture or indication its on

did you check if the bulb was burnt out
4/19/2010 6:56:09 PM • ViewSonic N4785p... • Answered on Apr 19, 2010
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My TV is just over a year old and out of warranty.

Sound like ur Tuner board have problems or dead.Tries unplug,replug the tv an hour later let it reset itself.The tv might work again,somtimes u have to turn the off/on the power button again couples times to make the tv work.Not replaced the Tuner signal board should solved ur problems.
4/19/2010 6:45:13 PM • ViewSonic N4785p... • Answered on Apr 19, 2010
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Why is my vizio tv's picture black and white?

HelloCheck it color system settings. Get into the menu option, and surf thorugh, set the colour system to "Auto"
8/3/2021 12:21:48 AM • ViewSonic... • Answered on Aug 03, 2021
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I have a 2008 ViewSonic N4785p. It will turn itself off and on with no patterns or reason. Any suggestions?

check power settings see if program set
9/19/2020 4:55:18 AM • ViewSonic... • Answered on Sep 19, 2020
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Remote will not turn on but will turn off ViewSonic

The 'ON' button is not working. Pls go for a new remote.
5/21/2019 8:01:05 AM • ViewSonic... • Answered on May 21, 2019
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Tune dtv on viewsonic n3246w-e tv without remote

Have a viewsonic n3246w but can't get it to tune in on dtv
4/25/2019 7:29:36 PM • ViewSonic... • Answered on Apr 25, 2019
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Tune my viewsonic n3246w tv

First make sure that the current input Source is set to TV to see the option for scanning for channels. There is a Source button on the front of the TV. (It's on the right side as you look at the front of the TV.) The Source button on the original remote is on the left side below the number keys.There are two RF (coaxial) cable inputs near the VGA port on the back of the TV. The digital RF signal needs to go to the port above the VGA port. To scan for analog channels, press the Menu button. Then navigate to the TV setup option with the Up/Down arrows. Press OK to enter the menu. You can use either the Auto search or the Manual search. However, the Auto will be faster. You can set your country or leave it to Auto. Navigate to Start and press OK for the Auto-scan. There is a DTV menu button above the Volume + button on the remote. Use this menu and look for the Installation section to scan for channels. Again there is an Auto or Manual option. ManualsLib has the manual for the Viewsonic N3246W here: https://www.manualslib.com/manual/306714/Viewsonic-N3246w.html. See page 23 for the start of the analog TV channel scan information. See page 30 for the digital TV scan. I hope this helps. Cindy Wells (For any channel provided by a set-top box, you will not be able to use the TV to store the channel lists.)
4/25/2019 6:17:35 PM • ViewSonic... • Answered on Apr 25, 2019
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I have a Viewsonic TV N2201W LCD TV Model # VS12247-1M Serial # R2**********, when I turn it off a box comes up Power Lock and my TV won't shut off. Does anyone has such problem. Please help

Some Viewsonic monitors have a Power Lock feature. However, these tend to be on the monitors (like the Viewsonic VA2265Smh) with only 5 control buttons. To toggle off the power lock, press and hold the button labeled 1 (Menu/Save/Exit) and the down arrow button for 10 seconds. The N2201W TV has more buttons than that. There is no Power Lock identified in my Viewsonic TV manuals. However, you might try the press and hold Menu/Down arrow combination. I hope this helps. Cindy Wells
2/18/2019 12:57:22 AM • ViewSonic... • Answered on Feb 18, 2019
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