Question about Sony FD Trinitron WEGA KV-27FS100 27" TV

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Blown Transformer in yard. Now I only get sound on TV.

Blown Transformer in yard. Now I only get sound on TV. NO picture. Tube does not even warm up. Can I HOME repair??

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I wouldn't suggest it, unless you truly feel confident in your own abilities. If you have proper insurance, then it can be repaired/replaced at no cost to you.

You'll probably have to replace the whole picture tube (I'm assuming it's a CRT) which can be costly and quite difficult to track one down; and if performed by the inexperienced, can even be quite dangerous as it's vacuum-sealed glass that'll send shards all over the place if it's abruptly struck with anything. The shards will normally go inwards, but sometimes they'll come flying out from the force of them hitting each other in the center of where the vacuum was.

Posted on Jun 02, 2010

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1 Answer

JUST HAS A DARK SCREEN


Picture tube failure is very rare. It sounds that the horizontal output transformer, that supplies voltages to picture tube to work are not present. A damaged horizontal output transformer might be the fault. Contact any experienced service technician. This is a repairable fault.

Aug 13, 2012 | RCA F32650 32" TV

1 Answer

I have a Toshiba 36"


Resolders the FBT-(flyback tranformer).Resolders the video board connections sockets holes,that the board connected to the CRT-(tv tube).Plug in the tv,to have power to the tv,take out the tv video board,for exposer of the CRT-(tv tube).Take an electrical wire with a good insalation in it,grounded to the tv steel frame some where.Take the other end of the wire go toward the open high voltage CRT-(tv tube).U will hear a pop sound,than ur tv CRT-(tv tube) is a 100% clean out of contaminations or u will hear a deeing sounds only,mean the tv CRT-(tv tube) it is to old to pop anymore,just let tv deeing sounds going on for like about 20 mins to rejuvenated the old CRT-(tv tube).After this repluging the tv video board for a tv signal and readjust the button on the FBT-(flyback tranformer) that said focus to fix the CRT-(tv tube) focus problems.

May 01, 2011 | Toshiba 36A40 36" TV

1 Answer

No picture but i have sound on my RCA F32676SB 32"


You do an adjustment on the screen nob on the flyback transformer?Resolders the CRT-(tv tube) YOKE wires R,G,B connections to the main PCB board?Resolders the video board CRT-(tv tube)video board pins sockets that connect the video board and the CRT-(tv tube) together.

Feb 13, 2011 | RCA F32676SB 32" TV

2 Answers

My tv keeps blanking out. the sounds stays on, but the picture blanks, then comes back on. can you help me?


hello ! a technician should check for any leakage  on the picture tube Transformer or any dry joints   on the board .

EHT transformer if faulty there will no picture but sound yes , 
swap the picture tube transformer with a new one  


good luck 

Oct 02, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

No picture or sound


could be blown flyback transformer

Aug 22, 2009 | Televison & Video

1 Answer

Tv will not turn on, just makes a clicking sound


Brother this is problem usually  when either the fly-back (picture tube transformer )or tube  voltage regulator  Transistor is damaged or the picture tube has a short 


Best of luck 

Aug 12, 2009 | Panasonic Televison & Video

1 Answer

No picture at all,sound ok 3 tube crts off after 4secs when on


might be a crooked flyback transformer, first check for shorted transistors around the transformer and components at the horizontal output stage..

Mar 31, 2009 | Philips Televison & Video

1 Answer

My tv won't come on


the picture tube did not go
this could have been the flyback transformer and or some components, but the tv will need to be tested to determine what has cause the tv not to come on

Oct 15, 2008 | Sony KV-36XBR400 36" TV

1 Answer

Red Flash -- TV Shuts Off


Unfortunately, you are describing the classic symptom of a bad picture tube. When the tube warms up a short developes in the neck of the tube, usually between the heater and cathode and this forces the tube to go full on, giving a bright flash of the color of the defective tube. The computer senses the extra current flowing through the flyback (high voltage) transformer when the tube is shorted and shuts the set down. The only solution is to replace the picture tube, but the Sony tubes are relatively inexpensive (about $175 for the entire tube assembly including sealed coolant) and they are very easy to replace and realign, but of course this must be handled by someone with experience.

Jul 02, 2007 | Sony KP-51WS500 51" Rear Projection...

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