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Anonymous Posted on Apr 21, 2012

Have a proscan ps50700 that wont show the picture, will turn on but turns itself right back off. what could it be

1 Answer

Sudeep Chatterjee

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  • Master 3,267 Answers
  • Posted on Apr 22, 2012
Sudeep Chatterjee
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TV Doesn't Turn On

  • Your RCA rear projection TV may not turn on from time to time for several reasons. First, check that the power cord is plugged into a working power outlet. Check that the outlet is receiving electricity by plugging a different device into the outlet. If the other device doesn't work, you may need to replace a fuse or reset a circuit breaker in your home.

    If you tried using the remote control to turn on the TV, press the "Power" button on the front of the TV. You may have a problem with the remote control if the TV turns on.

    If you tried using the front control panels and haven't tried the remote, press the "Power" button on the remote control. The television controls are blocked if the TV turns on with the remote. To unlock the controls, open the "Parental Control" menu and remove the check mark next to "Front Panel Block."

    Finally, your TV may be performing a diagnostic check. These checks are used to find any errors in your TV. Wait a few minutes before trying to turn on the TV again.

TV Turns Off By Itself
  • You may find that your RCA TV turns off by itself on occasion. This is often because the "Sleep Timer" feature was enabled. This feature allows you to place a timer on the television that will turn it off after a specific amount of time has passed. The feature allows you to save on your energy bill and extend the life of your television.

    If the "Sleep Timer" wasn't set, the television may have detected a power surge in your home and shut off automatically to protect the components of the television. Wait at least 30 seconds before turning the TV on again.

    Finally, if you suspect the television is turning off for a reason other than a power surge, unplug the television and let it sit for at least 10 minutes. This will clear any errors in the television. After 10 minutes, plug the television back into the outlet and resume normal use.

  • Blank Screen
  • A blank screen on an RCA rear projection television is usually caused by a loose connection or an incorrect setting. Check that the coaxial connection on the back of the television is secure or, if you're using an external device such as a DVD player, the video cables are secure. Press the "Ant/Cable" button to switch between tuners if you are watching television, or the "Input" button to switch between input channels if you're watching something from an external device.

5 Related Answers

Anonymous

  • 398 Answers
  • Posted on Aug 18, 2007

SOURCE: my tv. proscan mod. ps50700 won`t turn on

The PS50700 uses the 195 series chassis. The most common cause of the set not starting up is a shorted flyback (high voltage) transformer. Sometimes a shorted flyback will also cause the horizontal output transistor to short too. These parts need to be tested and/or replaced by a tech familiar with the RCA 195 chassis.

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Anonymous

  • 375 Answers
  • Posted on Aug 18, 2007

SOURCE: tv problem

what chassis is in your set,look at the rear panel for model and chasis type to help to diagnose fault

Kuwagata

donny ardalando

  • 208 Answers
  • Posted on Dec 10, 2009

SOURCE: My Proscan PS50700 turned on by itself in the

Well, that's the front panel button.Try pushing each button until you know which one is the cause.Actually,you need to find someone to replace this button, because to replace this button,you need to open the TV case, that's why you need an expert to do this.

Hope it works!!!!

Anonymous

  • 1 Answer
  • Posted on Dec 22, 2009

SOURCE: Proscan Projection screen warped

Just had mine do this same thing today. Looks like its time for a flat screen. Sucks to spend the money though :(


Anonymous

  • 3459 Answers
  • Posted on Jul 11, 2010

SOURCE: Proscan PS50700 Convergence Problem

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....

  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

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Related Questions:

0helpful
1answer

I have a 50 inch proscan and it just beeps but will not come on how can i fix it

I suspect wrong model number is listed here as this set makes no beep at turn on; older set made around 2000 but if it is your model here is some information to look at.

http://en.allexperts.com/q/TV-VCR-Stereo-1749/Proscan-PS50700-projection-TV.htm


If not this model let me know.
0helpful
1answer

My tv. proscan mod. ps50700 won`t turn on

The PS50700 uses the 195 series chassis. The most common cause of the set not starting up is a shorted flyback (high voltage) transformer. Sometimes a shorted flyback will also cause the horizontal output transistor to short too. These parts need to be tested and/or replaced by a tech familiar with the RCA 195 chassis.
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TV POWERS ON, THEN BACK OFF

I could be anything but mostly it will be its age, and if its never been cleaned out it could be the bulb failed, power board. dust build up can cause over heating of the parts. even damage them if the dust becomes damp. is there any lights flashing or any leds lite up ?
0helpful
1answer

My Proscan PS50700 turned on by itself in the middle of the night and began cycling through the channels. Luckily, I happened to see the light from the TV and got up and turned it off. When I've tried...

Well, that's the front panel button.Try pushing each button until you know which one is the cause.Actually,you need to find someone to replace this button, because to replace this button,you need to open the TV case, that's why you need an expert to do this.

Hope it works!!!!
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There is no sound; the mute buttons are off; how do I get a sound on my 40" proscan

Hi there.
Try to unplug the tv for about 10 minutes. It might reset itself.
Iceman.
0helpful
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No Sound on ProScan 50" Rear Projection

Check that sound is not "Muted";
Check that speakers are not turned off;
If using a S-VHS component, remember to connect the components L & R AUDIO OUT jacks to the TV's L & R INPUT jacks.
0helpful
1answer

Proscan Projection screen warped

Just had mine do this same thing today. Looks like its time for a flat screen. Sucks to spend the money though :(


0helpful
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Tv problem

what chassis is in your set,look at the rear panel for model and chasis type to help to diagnose fault
0helpful
1answer

Tv wont stay on

These are common problems with these sets.Mostly main power supplys or the sweep power supply. the set detects a short circuit, and tryes to reset but after three tries, it goes to stanby. Good Luck
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