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Rca rtb10223 i heard a screeching noise coming from the speakers i turned the system off i turned it back on the next day there is no picture or anything all i see is the media sign on the box but no picture on the screen. i disconnected all wiring waited a while then pluged them back but to no avail it's still not working. i just brought this thing in the summer i nevver really used it HELP cause i dont have money to waist.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Arpi
  • 326 Answers

SOURCE: my speakers have almost constant crackling noises

Hello, there is no chance that you can fix this problem by replacing speaker wires. Resoldering the output stages as well as area around the microprocesor could be the efficient solution. If you need more info please advice.

Posted on Apr 12, 2007

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mjap
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SOURCE: RCA F27227EM 27''

maybe an IC is mulfunctioning around the power suply. a four leg IC, sometimes its white or gray, try to change it.

Posted on Jan 19, 2008

  • 407 Answers

SOURCE: Sony dav s400 protect sign?- HELP!

Hi, you have to unplug your unit and open it up you will see two printed circuit boards one slightly over the other at the back of the unit. You have to loosen the top one off so that you can get to the bottom one, turn the bottom over and take the protective copper board off wth care so that you can see the soldered joints. Check all large pole joints and re-solder as i had to do 14 joints also the brown capacitor was loose on my board and re-soldered that also. I found that the cable inside the unit that comes from the headphone socket,follow it to where it is connected to the bottom board, three of the soldered joint were loose and i re-soldered them also. Rebuild circuit boards into place dont forget to put the copper cover board back in place on the bottom circuit board. The above info i found on an internet site and followed the instructions my unit now works just as new. P.S. USE SMALL TIPPED SOLDERING IRON.

Posted on Apr 24, 2008

  • 1 Answer

SOURCE: F35750ST watching one day, turned off, will not come on the next day.

my tv turns off andon

Posted on Jun 23, 2008

  • 6 Answers

SOURCE: Constant loud muffled noise coming from the sub and speakers.

Try playing with the connection, sounds to me maybe the jack is going bad or has a shorted connection. Plug it in and out slowly to see if that's the issue.

Posted on Sep 25, 2008

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I heard a screeching noise coming from the speakers i turned the system off i turned it back on the next day there is no picture or anything all i see is the media sign on the box but no picture on the...


Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
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