Question about Ktv 13TEC 13" TV

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Color I have very little color on the set. It was working fine one day and the next day I turned it on, as I was watching it just faded away. It's grayed scaled, but on color to speak of. I have no schematic nor a service manual. The channel numbers are in green and red when switch to a new channel. All other functions seem to work fine. Any help?

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Re: Color

Other than adjusting the color level, either with on screen controls, or a control on the back of the set, there is not much you can do yourself. Problem points to the color processing circuitry, which is not user servicable. Note that hazardous voltages are present inside, so tampering is not recommended.

Posted on Jul 15, 2007

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I have a Mitsubishi WS-55807 and the colors started to separate - you can reset it by turning if off and on again and it goes away but in time returns, starts getting blury then the colors split up - just...

In your On Screen Display menu (OSD), you should have a place that says "convergence". As a sub heading to this it will say "Auto-Convergence". This is where you want to be! Hit OK under AUTO, and watch the magic happen! If your set happens NOT to have AUTO, you'll have to do it manually. You're going to make the lines all match up doing one color at a time until all three colors are done! It's not hard at all. It may take a little patience at first, but just think of all the money your saving by not having a TV tech come out to your house and you'll be fine!

May 31, 2009 | Mitsubishi WS-55807 TV

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Sony 36xbr800 shuts off on own

sounds like one of your color tubes or a system board is failing and will have to be tested and replaced by repairman

Feb 11, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

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No color when turned on, after a while it color returns.

This is a cold solder joint in the signal section of the set. After it heats up, that problem area conducts better. Have an experienced electronic person reflow some solder on the board.

Feb 02, 2009 | Toshiba 32AF43 32" TV

1 Answer

Seeing red !

I had a television that went to a bright shade of blue.A friends neighbor worked for sony television plant where the new tubes came down the assembly line.His job was to make sure tubes were working fine,if one color was dominant then his job was to smack the front center of the tube with a rubber mallot to fix the problem.He suggested i try that with my tube while the set was on.It worked and solved my blue problem.Apparently he explained,the gun connections in the tube came loose and to fix it was to smack it this caused the connection to reweld itself.For you I would use the palm of an open hand and smack the tube dead center with a good hard smack.Dont be afraid of breaking the glass because its very thick and strong.Give this a try.Hope it helps.Good luck!

Oct 31, 2008 | RCA F25442 25" TV

1 Answer

Color on the screen

Try moving the speakers away from set.

May 11, 2008 | Orion1934 19" TV

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Color switches to b/w, then a click, then color, then b/w, click, etc.

Good day.

I think your problem is with the crt circuit. It is the one on the rear of your picture tube. Some loose connections may occured in there. Also, check if the flyback is arching. Sometimes, the voltage on the flybach itself causes this.


Mar 23, 2008 | Sony KV-27FS13 27" TV

2 Answers

Samsung HLS4266W 43" dlp

Power issues (Tv not turning on) were typically due to faulty ballast. While the TV reports a bad lamp it is the ballast itself causing the issue. Samsung is well aware and will replace both the ballast and the lamp (since the lamp can be prematurely aged but the bad ballast). After replacment most people stop having issues.

Dec 24, 2007 | Samsung DLP HL-P5663W 56" TV

2 Answers

No color / Zenith TV Model SJ2771W

You need to replace the color crystal (frquency is 3.579545 mhz) problem is I do not know which one it is... sorry. If you have the schematics for the TV it should be easy to locate but... you don't. See if the crystals in your TV are marked with a frequency. If not, try replacing one at a time... if the problem goes away your all set, if it does not or gets worse put the old crystal back and try it in the next. Do this at your own risk and watch out for that large red wire going to the picture tube!! Even when the TV is unplugged it can kill you!

Sep 26, 2007 | Standard (CRT) Televisions

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I'm about 90% sure it is the blue picture tube developing an intermittent heater to cathode short. I'm surprised the set isn't shutting down shortly after this happens. A service call will tell you for sure as it could also be a bad solder connection causing a similar symptom. My own procedure to check it out would be to GENTLY tap the neck of the suspected picture tube with a screwdriver handle to see if I could get it to come and go (Or get out my CRT tester and measure it with the power off). Obviously by holding the screwdriver blade you don't want to accidently short anything out as there is about 33,000 volts a few inches away from where I would be tapping. Nuff Said.

Feb 11, 2007 | Sony KP-53HS20 TV

1 Answer

Color fades in and out of picture

The first thing I would check is the antenna or cable connection into the set. When an analog TV signal is weak, the first thing to go is the color, then the picture, then the sound. If you have another TV, connect it to the very same cable or antenna connection and see if it fails the same way, too. Make sure you just disconnect the cable end right where it goes into the failing TV and connect it to the other TV - don't disconnect the antenna cable from the wall for this check. If the second set does not fail, gently pull on the antenna wire - not too hard, you just want to put a little tension on it to see if it makes the color cut out. Reconnect the first one and try again. If it's fine now, the connection was loose. If not, it has a tuner problem that must be repaired. Also, when you look at the end of a TV connector, the center wire should stick out just a little bit, like in the attached photo. If it doesn't stick out as bit, it won't make good contact, and will result in a weak signal. I appreciate your rating if you find this helpful.

Nov 13, 2006 | Philips 27PT643R 27" TV

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