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Arching in Picture tube socket

The picture tube socket has a special pin for high voltage it is arching. No picture, sound is okay. Tv is a Zenith HD TV, model C34W24

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Re: Arching in Picture tube socket

Ok! the arching line is for screen grid, make sure your spark gap is in align! or much better replace a new one CRT socket then clean all CRT board area with laquer thinner...

Posted on Sep 28, 2007

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When my t v has been on about 1 hour it goes crack and the picture becomes distorted it was bought in March

It sounds like a capacitor in the set has failed and is shorting out after some time at high voltage. I doubt that there is anything that you can do short of repairing or replacing the board on which is it mounted.

Jan 05, 2015 | Alba TV Receivers & DVRs

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Troubleshooting tv problems

There are a lot of possibilities, so let's get rid of some:
1) Try to unplug (wait 5~10 seconds.) and then plug back in your TV, and any other equipment you may have hooked up to it. If you have switched video on your Home Entertainment center, a relay or switch might be stuck open. UNplugging everything and plugging it back in may clear that problem. (Turning it "On & Off" is not the same!)
2) Is your TV in the correct mode? If it is in PC or DVI mode when it should be in Cable TV mode, that can be problematic. (Also check game ports, etc. and verify they are not selected.)
3) IS your TV old enough to have a high voltage problem? Typically sound is from the low voltage part of the TV receiver, and on older TV's things like High Voltage rectifiers and flyback transformers get involved. If this is a possibility, replace the set. In the long run you'll be happier, ,even if it is inconvenient as $#@! to pay for a new one.
4) can you post the make and model just to help us figure it out?

Sep 03, 2014 | TV Receivers & DVRs

1 Answer

No picture or sound

Sounds like a broken power relay.

Jul 23, 2014 | DISH Network TV Receivers & DVRs

1 Answer

We can see the picture but no sound

You haven't said what equipment you have, but if you're in Europe/UK then most of the time the fault is due to a scart plug becoming unseated. Remove all scart plugs and then push them carefully back in ensuring that they go into the sockets squarely until the problem is fixed. Check each scart plug before reiserting it to ensure that all of the pins are present and not bent/broken. If they are then replace the lead, but if only slightly bent you may be able to straighten them.

If this does not solve it, then you'll need to post details on what you have.

Jan 30, 2010 | Digi TV Receivers & DVRs

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Do we need to buy an antenna to get this TV ready for Digital TV?

LCD TV refers to the substance that creates the picture quality (it would be either LCD or Plasma or Tube) and HD refers to a crisp clear picture that can be attained. So your TV is an LCD (Liquid Crystal Display) TV that is capable of receiving and displaying HD (High Definition) Picture.

What you need to check for is whether the TV has a built-in Tuner. This will either be SD (standard definition) TV Tuner or an HD TV Tuner. The box it came in will tell you or you may still have stickers on your TV.

If it has a built-in SD tuner you will be able to pick up HD channels but in a lower quality. In this case you will only need to plug the TV into a Wall-socket antenna or rabbit-ear antenna.

If it has a built-in HD Tuner you will be able to pick up HD Channels in full HD quaility picture. Simply by plugging the TV into a Wall-socket antenna or rabbit-ear antenna.

If your TV does NOT have a built-in TV-Tuner then this TV is clasified as "HD Ready". Which means that you have to purchase a Set Top Box (STB). you can get either HD or SD set top boxes. In this instance you will plug the cable from the wall socket into the STB then from the STB into the TV using either an HDMI cable (as long as your TV has an HDMI input) or through RCA cables which will be coloured Green, Blue and Red (i think red)

By the Way - best picture quality is from a wall-socket antenna.
HDMI = High Definition Multimedia Interface
STB = Set Top Box
High Definiton RCA cables will also be refered to as YPbPr/YCbCr (depending on equipment)
LCD = Liquid Crystal Display (the method used to make the picture on your TV screen)

If you have anymore questions, ask away.

May 26, 2009 | Philips TV Receivers & DVRs

1 Answer

Hitachi 43F300 projection TV

if you have some knowledge about electronics u can open the back cover of your t.v and check if there are some parts that is being burned up, replaced it with the same part number. but be careful because t.v is dangerous because of its high voltage

Jul 27, 2008 | TV Receivers & DVRs

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My Sony tv CRT

If it's between 5-10 secs, that's normal. You will turn the tv on and hear a loud (buzz/hum) that is the picture tube firing up, once it's fired up, it has a few more seconds until your picture comes up fully. That is about 5-10 secs from pushing the power button.

If it's taking longer than that, your picture tube may be going out.

I had a 36XBR250 and it took about 10 secs to fire up and show a picture, and it was 5 1/2 years old.

Nov 25, 2007 | TV Receivers & DVRs

1 Answer

Toshiba 42 " TV

This is a sign that there is a problem in your high voltage section of your TV. The anode voltage might be dropping to a lower then normal level. This would cause this problem. I would suggest that you not try to repair this yourself becausee of the dangerous voltages that are present in the high voltage section of the TV set. You may have to take this set to a qualified electronics repair shop near you. I know this is not wha you want to hear, but the voltages involved can kill.

Sep 20, 2007 | TV Receivers & DVRs

1 Answer

I got a big problem with my tv..

Did the technician said what was wrong with the transformer?(leaky)?,It might sound like air but is High voltage leaking from the top ,be very careful when proving around there and just get it change because is not repairable and dont use it or it will damage other components.

Sep 23, 2006 | Sharp DVHR300U 109-Hours Video Recorder

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