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I have sony wide tv kv-w28mh11 it goes on and off later the picture does not appear the screen becomes black .ihear only the relay clicks on and off

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: SONY KV-27FV310: UPPER HALF OF SCREEN IS BLACK

You have a vert sweep problem and unless you know how to trouble shoot this cuircit bring it to a pro. I found out mostly in these sets that the vert output IC is bad.. Also sometimes the b+ filter cap off the fly is leaky and made the IC to fail. Another thing is Im surprised to hear you got a pic with the vert failure and a bright line in the pic!! This could be a big problem when the sets fixed so dont run it too long like this. It could burn a line all the way across the screen and you will see a dark faint line in your pic because of this. BE CAREFULL!!

Posted on Mar 25, 2006

MikeNJ1964
  • 398 Answers

SOURCE: Sony Trinitron KV-32S40 32" TV problem

This is a simple and common problem. The solder joints on the vertical output IC have cracked loose. I actually did a housecall on the exact same set with the exact same symptoms this morning! A good tech will resolder the pins of the vertical output IC and all other major solder joints on the main board and the set will play fine.

Posted on Sep 30, 2007

  • 586 Answers

SOURCE: Standby indicator light on TV flashes - Sony TV

Hi,
    Please check fisrst that indicator liight (LED) blinks how many times.it could be from 1 to 8 times and the interval would be of three seconds.So, count the led flashes how many times and then tell me i will try my best to find and fix the solution.

Thanks 

Posted on Nov 19, 2008

cactus bob
  • 267 Answers

SOURCE: Sony KV-32s40 (picture flashes in and out)

YOUR CRT (PICTURE TUBE ) IS GOING BAD . this is the most common way a sony tv crt fails . the tv is to old to make it worth a crt . but if your handy and carefull there is a way to get a little more time out of it . start with the tv cold , remove the back and look on the little board connected to the neck of the crt . there is a control marked "SCREEN " plug in the tv and cable and start it , with it flashing adjust that control , one way will make it flash more and one way less , adjust this no more than you need to , just enough to stop the flashing .NO MORE ! just be carefull the voltages in a tv can KILL . dont touch anything else in there and use a little inslated screwdriver to make the adjustment good luck .... if this answer helped please leave me 4 stars rateing , this high rateing will keep me in the paid answer department , thank you

Posted on Jun 21, 2009

  • 66 Answers

SOURCE: Sharp LCD TV picture goes off few seconds after

it has problem in picture tube

Posted on Nov 16, 2009

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Hi, I have a black sony KV32wf1u that I am hoping to sell but i am not sure whether this would be classed as a widescreen tv or not. Coulkd you help me pleased


SONY TRINITRON 32" KV-32WF1U, widescreen
SONY TRINITRON 32" KV-32WF1U, widescreen television with remote control, teletext, SCART connections.

That ad says wide screen.
Wide screen usually meant 16 X 9 aspect ratio, which I take it is your screen.
Tes, go for it, call it wide screen.

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Sony Wega 27in Randomly Has Block Box Appear On Screen


this means the TV having picture upper part of the screen. problem may be -15 V to vertical deflection ic suddenly gose off and system control gose to stand-by mode resolder vertical out ic , -15 v supply line from the fly back and system control .

Jan 15, 2009 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

Black box covering one-half of TV screen


Try turning off the text box function of the closed captioning.

Aug 02, 2008 | Sony FD Trinitron WEGA KV-27FS120 27" TV

2 Answers

Tv screen goes black


No, if the picture of your tv screen is clear when when you watching. the troble of your tv is looseboard, and you replace your CRT socket too.

Apr 16, 2008 | Sony KV-35V35 TV

1 Answer

Sony KV32HS420


Good day.
I believe there may have been some parts that were burned out due to high voltage. There are cases where insects such as lizards penetrated and got stuck then got stuck then got electrecuted inside. You can open the back cover of your unit or better, refer to the repairman.


chris

Mar 25, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sony Trinitron - Picture Disappears


Hi, IK circuit is engaging which basically means the picture tube is getting tired, the only "fix" is temporary (may get another year out of it). You have to increase the "screen control clockwise".
Remove back of set, follow large black or red wire attatched to picture tube down to the flyback transformer, mounted on flyback are two black controls, one is focus (leave it alone) the other is "screen", adjust it clockwise approx. 1/4 inch, remember that this is a high voltage circuit so use one hand in the set the other hand out of the set at all times,any questions ? e-mail me back, good luck, BMW Rider

Feb 27, 2008 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

Sony Trinitron KV-32S40 32" TV problem


This is a simple and common problem. The solder joints on the vertical output IC have cracked loose. I actually did a housecall on the exact same set with the exact same symptoms this morning! A good tech will resolder the pins of the vertical output IC and all other major solder joints on the main board and the set will play fine.

Sep 30, 2007 | Sony FD Trinitron WEGA KV-32FS100 32" TV

1 Answer

Sony kv 32s42 32 tv


turn up your master screen control on flyback transformer. if when sceen gos black ,the timer light will be blinking. this means your picture tube is week. by turning up the screen control you may give it more time.

Aug 05, 2007 | Sony KV-32S42 32" TV

1 Answer

Sony KV-35S42 35" TV


Check first for bad solder on the vertical IC, Im not sure for your set as I do not have the service manual, but it may be location IC301. If after resoldering it does not fix it you may have to replace it and you should replace the electrolytic capacitors in the vertical section. Hope this helps. Don

Jul 31, 2007 | Sony KV-35S42 35" TV

1 Answer

Picture takes hours to appear


Spounds like the b+ feed filter capacitor off the flyback that supplys voltage to the three drive transistors on the crt board is bad.

Apr 16, 2006 | Sony KV-32V16 TV

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