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Flat screen has gone black but sound is fine

Taken all connections off and checked them put them back screen still black and sounds is still ok

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Suggest that you borrow a monitor from someone and try it on your system. If it works , you may have a defective backlight on your monitor , which means that you may want to replace the monitor. If the replacement monitor also is black , you probably have a video output problem , which would require repair of your computer.

Posted on Dec 01, 2014

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: goodmans flat screen TV.Blank screen

If it is a LCD TV, and there is a faint picture, it is probably the backlight or inverter board (probably the latter). This is a common problem (especially with PC monitors).
Do an internet search for your model and inverter, you may be able to replace it.
Make SURE you REMOVE the power lead before opening the set !!!!

Posted on Mar 03, 2008

milkburp
  • 416 Answers

SOURCE: no sound on some channels, other channels fine

Your SAP/MTS function is most likely turned on. This feature has 3 modes: Stereo, Mono and SAP. Stereo and Mono are easy to understand, it's the SAP that can get you. SAP stands for Second Audio Production. It is used to provide weather, information or an additional language translation of a program. Some broadcasters simply transmit the mono audio over the SAP audio channel when the are not using it for other purposes. Other broadcasters simply do not use it, which does not give you any audio. Look on your remote for a SAP or MTS button. If you do not see one, look in your TV user menu for this feature. If you are using a cable box, look in the audio menu of the cable box. You are looking for something set to SAP... just change it to STEREO. I hope this was helpful.

Posted on Mar 26, 2010

  • 8457 Answers

SOURCE: No sound on my Polaroid flat screen

Unplug,replug the tv about an hour later.Go in ur tv menu.Go to AUDIO,go down to reset it,well go back to factory setting.Ur sound should return.Not,than ur Tuner board is dead.Trires websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacenent.

Posted on May 04, 2010

  • 1 Answer

SOURCE: Hi, Maxent P420142x3. Screen picture has gone....

my maxent p420142x3 i have sound but no picture any answers

Posted on Jun 29, 2010

joeymille916
  • 143 Answers

SOURCE: I have a Vizio P50HDTV20A. I came back from a

My guess from this little information is the buffer boards are bad. The Y Buffers... (3 boards, main, lower, and upper should be checked). The main buffer could just be out, but usually when we replace one, we replace all three. If you are tech savvy and are going to try to fix this yourself, I would start there. Here is a pic of the Y main.. Part # LJ92-01399A . 086lj9201399a.jpgthe Y lower and Y upper are connected to this.. Usually on the left side of the TV (from the back).

There is a fuse on this board, so it could have blown, but more likely, it's time to be replaced.

The Upper and Lower Y Buffers are part #'s LJ41-05121A and LJ41-05122A. I recently replaced mine on my Philips Plasma and it's been working fine since!
Good Luck!

Posted on Oct 12, 2010

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The backlight inverter board may have gone out, or the power supply for the inverter may have gone out. If it is two years old, you should look at the power supply first for bad capacitors.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find. What is themodel number anyway?

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