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My Gateway GTW-L13M103 13" monitor/TV tuner has momentary good picture upon powering on, then only brief flash of picture as I change channels, but essentially a black screeen while operating. Audio is fine. Is there a fix I can do without much problem? This is a 2003 model that I got for free with a computer so I don't want to spend much $$$ on it.

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Posted on Jan 02, 2017

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SOURCE: lcd tv

blown capacitors on the inverter/ vga board

Posted on Apr 27, 2008

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SOURCE: Gateway plasma tv

I had the same problem outline by other posters here:

- no image on screen
- no control by remote
- ocassional flashing of screen back-light (while still no image)
- amber led when rear "master switch" engaged, then green led when powered "on" with remote power button or front panel power button, but still no image
- could not power off with remote power button or front panel power button (had to use rear "master switch")

And, as noted by at least two others below, found the same cause/culprit: a pin and connector on the power board pictured by Mike (posted Oct 11) was discolored and apparently over-heated. Whether this was the cause or effect, I don't know, but the end result was separation of solder on the rear of the pin and poor contact between the pin, connector and ultimately applied power.

As Mike posted Oct. 11 and bitzzy posted Nov. 22, the solution is to fix the bad connection. After removing the power board I re-soldered the weak pin connection and also removed the corresponding connector on the cable connector to clean and check the connection. After reassembling, I am happy to say everything is back to working perfectly!

Thanks to the internet and kind posters on this forum for helping me find the problem and fix it without dropping $hundreds$ for a repair or a $thousand$ for a new set!

Posted on Jan 10, 2009

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Posted on Jun 11, 2009

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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

  • 47 Answers

SOURCE: 1. momentary sound, then no sound no picture; 2.

Hi, if the power indicator flashes 4x blue more then likely its a SDR buffer logic board. When you take the back cover off they are the long boards on the left side of the tv. There are 2 boards. If you look closely at the black chips on the boards which there should be 8 on each. If you see a burn mark or a deep scratch mark then the chip is fried. If you take the lower one of and turn the tv on it might come on and if not try the top one. Please rate me and let me know how you do.

Posted on Jul 29, 2010

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I was able to resolder the pin shown in the picture and it fixed my problem as well.  I also used a razor and cut off the last socket for that pin on the connector and put a dedicated connector on so that it will take the heat a little better.  Also when I re-soldered that pin on the bottom side of the board I scraped away some of the protective coating around the solder puddle so that I could make a bigger solder puddle to add a little more strength and heat resistance.

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