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Technika tv faults

Picture quality poor

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 173 Answers

SOURCE: Poor Picture Quality on Philips 42PFL7962D

Get the professional, although this won't be an expensive fix... You likely have one or more caps in the vertical circuit that are going bad... A cap acts like a battery in a circuit taking on voltage and releasing it at an even rate. When they go bad their ESR (equivilent series resistance) rises and the cap takes longer to reach it's op temp and work properly...
A tech with an ESR meter will easily find and repair this one...
no other issues only a minor problem..

Posted on Dec 05, 2007

circuitworld
  • 335 Answers

SOURCE: Poor picture quality & audio reception

If the input to a HD tv is not in HD format the tv won't display an image very well. Be sure your input to the tv is compatible with the tv's technology for optimum performance quality Also re-check the input source (such as converter box, dvd player, etc..) and be sure you have the correct input/output ports connected properly. Try to reset all yout tv settings back to manufacturers defult specs. When an input signal is sent to the tv most modern tv's have software built in to select the proper format to display the input image. There may have been a mismatch communication error when your tv software tried to "handshake" with your converter box input signals from its firmware. So try a reset solution and re-connect the tv without the converter and see if that helps. If not e-mail me and I'll determine if the tv needs technical servicing.


Posted on Jan 03, 2009

jerryg50
  • 1667 Answers

SOURCE: Poor Picture Quality

Try another cable box on the TV. I have seen these fail and cause problems. If the TV is okay with a DVD player, and not good on the cable service, most likely the fault is with the cable box, or the HDMI input circuit in the TV.

With the process if elimination it is possible to functionally work out where the defect is.
It is possible to have any TV fail. Both new and old sets can fail. Naturally, the older the set the greater the chance of failure, and reliability decreases with age and or use.

Jerry G.

Posted on Jan 31, 2009

  • 909 Answers

SOURCE: Poor picture quality on cable input

Try swapping some cables around, like the skart lead from the dvd(if scart) for the cable one, if the picture problem swaps with the lead then thats the problem. If it doesn't try settings on the cable and tv, if the cable is sending nvbs signals and the tv is set to pal then this can also occur.

Posted on Jun 30, 2009

budmrtn
  • 11361 Answers

SOURCE: my tv shows poor picture

Are you using cable box or off the air antenna? More details please.
Same when use DVD?

Posted on Dec 04, 2010

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Try another cable box on the TV. I have seen these fail and cause problems. If the TV is okay with a DVD player, and not good on the cable service, most likely the fault is with the cable box, or the HDMI input circuit in the TV.

With the process if elimination it is possible to functionally work out where the defect is.
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