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Model KV-XF21N90/2 it has a sound but there is no picture?

With sound no picture...but there is a light in tube.

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 84 Answers

SOURCE: KV-36FS10 - No picture or sound Stand By Light blinks

5 Blinks usually means the horozontal circuit has problems and parts need to be replaced. unplug power to reset

Posted on Jun 15, 2008

  • 1 Answer

SOURCE: kv-32s120 standby LED blinking no sound or picture

the led next to my power button flashes nonstop on my sony wega kv27fs320
what do i do thanks

Posted on Sep 11, 2008

welcomejee
  • 10594 Answers

SOURCE: Sony Trinitron 2002 Model #

7 times blinks shows problem in Horizontal Deflection stage of tv and possible defective part can be Horizontal Output Transistor or Fly back Transformer.
If your are qualified tech person then go ahead to check above parts.

Posted on Sep 17, 2008

  • 4234 Answers

SOURCE: Sony Trinitron Picture Tube replacement

I think that you will find the picture tube to be more expensive than a replacement TV, if it is still available (unlikely). That being said, it is also unlikely that the tube itself is the problem, The more common problem is the horizontal output transistor or the flyback transformer. Either part should still be available for a reasonable cost. Check with a local servicer for the part numbers and costs. These are common parts.

Dan

Posted on May 19, 2009

barbu51
  • 566 Answers

SOURCE: kv-32fs16, no picture or sound , red lights flash 4 times

Hi
In sony tv`s the 4 blink code(sony error codes)usually means that there is a vertical deflection problem.
It is often caused by a faulty vertical output i.c and/or related components. If you feel handy with a soldering iron let me know and i`ll help you with it.
Hope this help Merry Christmas

Posted on Dec 17, 2009

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2 Answers

Tv keeps turning itself off and the white in the picture looks alittle off.


To get the right colors, especially a plain white, requires the right mix of red, green and blue from the picture tube. Sony TV sets have a circuit called AKB that automatically keeps the picture tube balanced by adjusting the signals to it. If that balance can't be achieved it shuts off the picture. This may due to tube aging so one of the color guns is too weak to adjust, or failure of parts in the AKB circuit itself. If the sound stays on and the power light starts blinking when the picture goes off, this is likely why.

On the other hand, if the set is turning off completely with no picture, sound or power light, the set may have power supply problems or defective parts in the picture tube high voltage circuits.

Since there are several possible causes, this set needs to be checked by a technician who can diagnose the problem and decide what needs to be done. It's not a simple thing I can point to and say "change this part". If the picture tube is the cause, it's better to replace the set. Otherwise get an estimate, then decide whether to fix or replace.

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Sony kv 32s42 32 tv


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