Question about Sony FD Trinitron WEGA KV-20FS120 20" TV

1 Answer

Sony Tritron Kv32S22 No Power

My roommate had a fire in the fireplace and forgot to open the fluuk. Smoke was all over th living room.. It seems the tv stopped working about that time today,, Could the "smoke" cause it to short out or something? Before it was working fine. I have other things plugged in the the common outlet and they still funtion. The remote lights up but does not work nor the manual turn on. It was made in 1998.. Thanks for any assistance..


Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 579 Answers
Re: Sony Tritron Kv32S22 No Power

TV's have of course high voltage in them which makes them act much like those electrostatic air cleaners and may well have plenty of dust inside and the smoke ash probably was the "straw that broke the camels' back". Find an outside source of compressed air, take the back off of it, and blow it all out. If you are lucky it will then work. If not, my usual 10 year rule then applies:
My experiance is to not put money into a TV that is over ten years old. TVs stress out their electronic components worse than almost any other electronic product. After 10 years, there are so many parts that are ready to fail that your are probably wasting your money trying to get any more life out of it.
Another option is to wholesale replace the main board from an outfit like Module Exchange at 972-298-1212
Be careful on buying a new one though. Often times, these new technology ones are much worse. Always Google the model number of the set you intend to buy and add the word 'repair' or 'complaint' to see if it is one of the many models that are customer service nightmares being produced by even the most reputable companies today.
Hope ya fix it!

Posted on Jan 09, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Sony tritron orange picture

Check for any loose solder points at its video output section. Absence of blue color is the problem. The video output card can be located at the neck of the picture tube, directly plugged on on to its back.
If you want more details, check this link and see the post, One color predominant screen. Pull up older posts there.

Sep 29, 2012 | Sony FD Trinitron WEGA KV-36HS510 36" TV

3 Answers

Sony KV_#^FV1

try the hard reset first.

Jun 14, 2008 | Sony KV-36FV1 36" TV

1 Answer

Have a sony tritron wega flat screen tv and it wont turn on, its red light blinks three times, what is the problem and how do i fix it?

Your TVs horizontal output stage is not working. That means, the line output side [LOT and related components], are inoperative. It may be due to some secondary missing voltages from the power supply section of your TV. There may be some open resistor, or short inside the Line Output Transformer [LOT] itself. Anyway that side is not working. Your TVs power supply regulator system has no trouble. It supplies the required voltage to the other sections. That is why you see the LED [Light Emitting Diode], fitted in front panel of your tv blinking for some time and shuts off. As soon as the TV is switched on, the power regulator system inside the tv will supply all the necessary secondary voltages to all sides. If at any section misses the required voltage, the system control Ic will detect it, and will try to rectify that. It is so programmed at the factory. If it can't do it, it will automatically shuts all the supplies from the power regulator system. It is a protection added by sony to all models of their Tvs.
You yourself cannot detect and repair this fault. Get the service of an experienced technician.

Oct 17, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

My Sony TV kv32s22 has a problem. It has audio but no video. There isn´t oscilation of the flyback at firts it turning on but now the red led is flashing all time. I look the pin for 9 volts has 8.2V...

Just moved my mitsubishi big screen from one location to another. The tv wont communicate to the remote and the tv will not resond manually. Pls help

Jan 08, 2010 | Sony KV-32S22 32" TV

1 Answer

Screen not coming on

This Chassis line had a lot of issues with hair-line cracks in the Horizontal Circuit along the right side near the High Voltage Transformer and Heat Sink. It has also had issues with cold solder connections in the Horizontal Drive Circuit especially the Horizontal Driver Transformer. These issues have many times caused a massive Power Supply and Horizontal failures if not repaired.
I hope this helps,

Jul 24, 2009 | Sony KV-32S22 32" TV

1 Answer

Sony KV32s22

Hi: Sounds like it might be an overheating part, and the short is shutting of the set. Or it could be an intermittent connection in the pc board. Either case it would have to be repaired by a expert.

Mar 11, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Repair TV Sony KV32S22

The schematic diagram can be found here:
Need to find winrar for the program to unzip the files.
Good Luck.

Feb 11, 2008 | Sony KV-32S22 32" TV

1 Answer

Power problem?

Try th set in another room, if only to see if this phenomenom happens with other light fixtures or appliances. Would suspect the switching type supply in the TV as suspect if the problem "moves" with the set....accordianman

Oct 20, 2007 | Hitachi 43FDX01B TV

1 Answer

No picture, sound works on Sony TV

Hello, maybe there is a contact error in power supply or the deflection stage. If the resoldering does not help- here are some possible solutions: remedy Replace flyback location LP04. Entered for KV32S22 /SONY (Chassis) remedy 2 Replace IC351, Q602, Q601 (2SC4834M), R607 (1R/0.5W), R622 (10R), IC641 (SI3090CA) and Q502 (2SC5148). remedy 3 Replace tuner. remedy 4 Replace R607, Q502 and IC601. Entered for KV32S22 /SONY (Chassis) remedy 5 Replace regulator IC, R607, check C609, C610 (0.68pF) and C613 (0.0022pF/500V). remedy 6 Replace horizontal output transistor (2SC5148), IC601 (MX0841) and R607 (0.1R). remedy 7 Replace IC1701 and IC601. remedy 8 Replace Q501 (2SC5148), R607 and resolder horizontal driver transformer. remedy 9 Check and replace horizontal output transistor Q502 (2SC5148) and IC601 (MXD8411AB-F). remedy 10 Replace shorted R607. Also check T501 and Q501 for dry joints. remedy 11 Replace C608. remedy 12 Replace Q602 and D648. remedy 13 Replace Q502, Q601, Q602 and R602. Entered for KV32S22 /SONY (Chassis) remedy 14 Replace D626 (6.2V). remedy 15 Replace IC801 and R607. remedy 16 Replace horizontal output transistor and the associated damping capacitor. Check flyback transformer and SMD microprocessor as well. remedy 17 Replace R639 (4.7R/0.250W) located on G board in standby power circuit. remedy 18 Replace D600. remedy 19 Replace C502 (0.47uF/50V). remedy 20 Check D655(1N4937), D657 (1S1834) and Q601 (2SC4423). remedy 21 Check D606 for leakage. remedy 22 Check yoke between vertical and horizontal windings for S/C. remedy 23 Replace Q601 (2SC4834MNP), R607 (0.1R) and C517 (2.2uF/250V). remedy 24 Replace R611.

Apr 22, 2007 | Sony KV-27V22 TV

Not finding what you are looking for?
Sony FD Trinitron WEGA KV-20FS120 20" TV Logo

38 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

66623 Answers

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Are you a Sony Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides