Question about Standard (CRT) Televisions

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CTR Television will not power up

Television was working with perfect picture then all of a sudden it just shut down, not even the red standby light on, but it has a high pitched squeal coming from inside, I have opened it up squeal is so high I can't locate noise... the noise was not present before it shut down... any ideas on what is my problem. Before the TV turned off permenantly, the TV picture was distorted on one side - the right frame of the picture kept coming inwards towards the centre of the TV screen. Also, sometimes there was a discolouration at the centre of the TV after the TV was turned off.

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What has happened is that the horizontal output transistor has shorted. The squeal you hear is the power supply running under a heavy load. The picture narrowing or being distorted indicate that the horizontal output was not operating clean. Something in the output section was not as it should be. Possible short in the output transformer/tripler unit or something loading down the secondary voltages generated by the horizontal output. You will need a tech to figure this out....If you are not a tech, then this ones a goner as far as fix it at home goes.....If you are a tech I might be able to talk you through the repair. Have someone remove the horizontal output transistor and I bet the squeal goes away.

Posted on Feb 10, 2008

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You have a short in the TV. Probably a horizintal output transistor. They squeal high pitched when they short out. Unfortunately you must have it repaired by a professional service technician.

C-Dog

Posted on Feb 10, 2008

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My Sony Trinitron TV 1999 (KV-32V42) made a strange popping sound and I lost both the sound & picture. When I turn it back on, the two red lights on the front of the TV(standby/Timer light & Stereo...


Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV. The self-diagnostic function of the TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue.

Few examples are given below; some of the issues may be resolved without the need for service.
1 blink / 2 blinks / 5 blinks: - This indicates that there may be a power-related problem with your set.
3 blinks: - This indicates that there may be a power-related problem with your set. The set will need to be serviced to allow a technician to determine the specific issue that needs to be repaired. If the power light flashes three times in sequence in a Lamp TV, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
4 blinks: - This indicates that there may be a back light or lamp power problem.
6 blinks: - This indicates that there is some kind of audio problem with your set.
7 blinks: - This indicates that there is a temperature problem with your set. Please check to make sure that the air vents on the sides and back of the set are not blocked or clogged and there is adequate ventilation around the television. We recommend that you check and clean the vents periodically to make sure the set receives adequate air flow. If the problem continues, the set will need to be serviced.
8 blinks: - This indicates that there may be a video-related problem with your set. If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.


Thanks for using Fixya.

Feb 04, 2011 | Sony FD Trinitron WEGA KV-32FS100 32" TV

1 Answer

2003 Sony Trinitron 36" television. Just shut off, light blinkin


The STANDBY light will flash if the television detects an issue within the television. Some of these issues can be resolved simply by following the steps below to reset the television.
If the issue is still unresolved after following all of the troubleshooting steps, Service will be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.

Sep 14, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Sony Trinitron TV. No picture; red standby/timer light flashes.


My Sony trinitron has the stero lite on steady and standby lite flashes four times then pauses and repeats. Can you tell me the circuit/condition causing the set to not turn on.

Jul 15, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Toshiba 44NHM84 has no picture just red flashing standby light


during transportation your TV was suddenly shock. then causes your TV lose connection on main circuit board. trust me!

May 21, 2009 | Toshiba 44NHM84 44" TV

1 Answer

When switching off the television with the on/off switch the red


That just lets you know that it is in standby mode..

Feb 01, 2009 | Samsung TXJ3678 36" TV

3 Answers

T.v goes on no screen just blinking stand by light red


The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply following the steps below to reset the television.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.

Apr 09, 2008 | Sony FD Trinitron WEGA KV-34XBR800 34" TV

1 Answer

Sony kv32v15, Red screen with fine horizantal lines then shuts off


I would suggest to measure the 200 volt B+ at the CRT socket. If that voltage is found to be low, disconnect the socket from the CRT and measure again. If the voltage reading returns to normal you may have a defective CTR.
Also check for open or defective diode on flyback transformer for the 200 vdc source.
I would also suggest to take all the necessary precautions since you are working in a very high voltage area.
Good Luck.

Jan 14, 2008 | Sony KV-27XBR45 27" TV

4 Answers

Sony kv32fs16 problem


The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply following the steps below to reset the television.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.

Nov 02, 2007 | Sony FD Trinitron WEGA KV-29LS35 29" TV

2 Answers

No video, no audio, only blinking red light on standby power


The STANDBY light is flashing on the television and there is no picture or sound. Solution
sp.gif sp.gif The STANDBY light will flash if an issue is detected within the television. This can sometimes be resolved by simply following the steps below to reset the television.
  1. Turn off the television. IMPORTANT: For a projection television that uses an internal lamp, wait 5 minutes after turning off the television to allow the lamp to cool before continuing with the following steps.
  2. Unplug the television power cord from the electrical outlet.
  3. Let the television remain without power for 60 seconds.
  4. Plug the power cord back into the electrical outlet. NOTE: If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.
  5. Turn on the television.
If the issue is still unresolved after following all of the troubleshooting steps, service may be required. Please note the number of times the STANDBY light flashes and relay that information to the service center.
OR GO TO SONY.COM, TROUBLSHOOTING, OR THE FANS NOT WORKING.

Aug 16, 2007 | Sony KV-35S42 35" TV

2 Answers

Blinking red light


If your Sony TV is hooked up to a good signal and is set up correctly, but only clicks and has no picture or sound, and even the menu will not show up on the screen, then it means that the main power supply has stopped working. I usually find that a small crack in the solder joint of the horizontal drive transformer or a shorted flyback will cause the large horizontal output transistor to short out, and this shorts out the switching transistors in the main power supply which then causes the Sony 0.1 ohm fuse resistor to open up. I have also seen power surges or power failures (brown-outs) cause the switching transistors to short out. In any case, the set absolutely should be serviced by someone experienced in repairing Sony TV's.

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