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Sony KV 1975R sound turns to static after about 30 minutes. Switch off/on sound returns briefly.

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A series of caps in the audio circuit are failing and need to be replaced. You'll need an esr meter to determine which of thse are failing and short of that I'd strongly suggest you have a tech repair it. It's not an expensive repair and I'm positive you would be much happier with the outcome.
Bill

Posted on Dec 02, 2008

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I have a Sony Trinitron Model number KV-35V65, 6 years old. The tv has presented with this problem. The screen will go black, the fan continues to run, and the power stand-by light blinks. It was doing...


Poor Solder connections can cause this problem ,first try resoldering board.Solder FBT flyback Transfomer Pinns. Encompass Parts Distribution is listing this Model.They also have Service Manual.1-800-638-3328

Oct 13, 2010 | Sony Projection Televisions

2 Answers

Sony kp-53xbr45 please let me know step by step how to enter convergence service thank you


Hello,

To enter into the convergence service of your sony, follow the steps below;
  1. Press "Menu" on the remote control. Use the up- or down-arrow button to move the cursor to "Setup" and then press "Return."
  2. Use the up or down arrow to move the cursor to "Convergence" and press "Return." This will bring up the convergence-adjustment screen.
  3. Press the up or down arrow to move the cursor to the line you want to adjust (either vertical or horizontal for red and blue) and press "Return."
  4. Press the up or down arrow again to move that line until it converges with the center green line and press "Return."
  5. Repeat to adjust the other lines until all three lines converge and are seen as a white cross.
  6. Press "Menu" to exit the convergence menu and return to the original screen.
You can as well follow these steps;
  1. Press the "Power" button to turn your TV on.
  2. Wait at least 30 minutes before you adjust the convergence in your television. This allows your TV ample time to warm up before you make the adjustment.
  3. Turn your TV to a cable channel or to an antenna channel with a picture that you can see. A music channel with a static shot of music notes isn't the kind of picture you need. Instead, look for a picture like what you would see on a movie, sitcom or drama.
  4. Press the "Flash Focus" button located in the front panel on your TV. You may need to open a hidden compartment on the front of your TV to access this button. The convergence will repair itself automatically after you hit this button. It may take several minutes.
Any of the two processes are detailed steps on how to enter your convergence service.

Take care

Jul 03, 2010 | Sony KP-53XBR45 53" Rear Projection...

1 Answer

Sony Trinitron KV-28LS36U no sound or picture, the standby light flashing green and red but if i switch it on a little bit of sound comes and then switches off. how can i repair?


The unit is shutting itself down because a problem was detected internally. When this happens, the standby light should blink a repeated pattern. Please count the number of blinks and post the number here. That will indicate the circuit in which the problem occurred.

Thanks,
Dan

May 19, 2009 | Sony Projection Televisions

2 Answers

JVC Model no: AV-48WP34 Projection Problems


OK, problem seems in convergence section of TV and can be confirmed by testing voltage supply as mentioned in schematics.

You can download service manual copy from Manual Zone for small fee and it has schematics, exploded views. board location, part numbers info.

Let me know if you need further help.
Thanks.


May 07, 2009 | JVC Projection Televisions

1 Answer

Picture on Sony KDF-60WF655 has a yellow tint after 30 mins on


This TV is known for issues with the optical block(light engine) The discoloration is coming from the LCD panels in the light engine that have been damaged by the intense heat produced by the lamp. There is a class action lawsuit settlement between Sony and the New York state attorney general's office. Sony agreed to cover these problems going back 4 model years. if you had to pay for the repairs on this TV, you could expect to pay more than $1000 to replace the light engine. Call Sony customer relations at 1-800-222-SONY
and tell them you want this covered per the agreement I mentioned.

Feb 14, 2009 | Sony Grand WEGA KDF-60WF655 60" Rear...

2 Answers

Sony


CHECK THE FRONT LED THAT BLINKS. COUNT THE BLINKS.
IN ANY CASE YOUR SET NEEDS TO BE SERVICED BY A SONY AUTHORIZED SERVICER.
30 YR SERVICER AOGONZO

Dec 22, 2008 | Sony KP-57WS500 57" Rear Projection...

1 Answer

We keep losing sound and picture on our TV


If you haven't replaced the lamp, it is almost certainly time to change it. A weak lamp will cause the TV to play for a short time. As the old weak lamp heats up, it draws more current, and the reflector in the lamp, having become cloudy over time, converts the light into more heat rather than reflected it out into the set. Eventually the lamp draws too much current and the set turns it off, going into a restart cycle. Buy an original Sony lamp, as the aftermarket replacement lamps are known trouble makers. Be sure to rate this solution. Thanks!

Nov 13, 2008 | Sony Grand WEGA KF60XBR800 60" Rear...

1 Answer

Whine-no picture-audio only,1 channel


bring up the menu screen the tv and auto program the channels this lock out all un wanted and only allow the rf tuner input channel from the box if your using rf cable hook up,if not un plug the unit for 1 min. and try it again.

Dec 11, 2007 | RCA D52W20 52" Rear Projection HDTV-Ready...

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