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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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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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Sound like you might have a high voltage ribbon going to the picture module arching. Turn the Volume down and put your ear close to the edge of the set and see if you heard a arching or a high frequency pitch coming from the side or top..

Dec 07, 2013 | Samsung LN46C650 TV

1 Answer

Screen strobbing

you have to check for a loose contact at the main board then you can check the flyback transformer which have leak. the the high voltage is arching at the picture tube.

Feb 17, 2013 | RCA F32650 32" TV

1 Answer

I have an RCA 52 inch rear projection tv. Model # HD52W59 The blue CRT is arching inside the tube and I get no picture on the TV at all. Is the blue CRT gone bad

Yes,the blue CRT is dead,arching indicate the high voltage not going through the CRT tube anymore.Try website like,check if u still can buy refurbish crt tubes.

May 23, 2010 | RCA HD52W59 HDTV Projection Television

1 Answer

Zenith r57w46 rear projection tv

the static sound may be due to a defect in the high voltage circuits, IE Fly-back transformer or and voltage multiplier, posibly high voltage leads to the CRTs arching to ground, finally horizontal sweep circuits

Apr 28, 2010 | Zenith R57W46 57" Rear Projection...

3 Answers

The tv was working and made a hiss and pop and quit, I replaced the flyback and now it just ticks

When you replace a flyback on an RCA Model, Always replace the Horizontal Output tranistor with it. These models are notorious for for bad solder connections in and around the HV area. Also check around the High Voltage Area for bad HV Scaning Capacitors. These are usually square shaped , for cracking,arching,and swelling. Replace if found to be defective. One more thing check the neck of the picture tubes for cracks or arching inside a tube when trying to turn the set on. Sometimes a bad scanning cap will go defective and drive the high voltage so high it cracks the Green CRT.

Nov 15, 2009 | RCA P52960 52" Rear Projection Television

1 Answer


check the high voltage with the screen control turned up high where there is no raster. suspect problem within the video circuit where there is no high voltage or defective picture tube.some time when the screen is black and the screen control advanced,you can see if the tv has video or vertical or horizontal problems on the screen.service the high voltage circuit if there is no raster or high voltage is raster can be caused by the no heater or filament in the CRT.---- a defective picture tube can cause many problems, such as, poor brightness ,missing colors,intermittent picture,poor focus,a single-colored raster,arching in the gun assembly,retrace lines in the picture,negative picture,chassis shutdown,noheater or filament lit and no raster to name a open filament or heater can cause no picture or no raster symptom.a defective CRT can have an extremely bright screen.loose particles of the cathode element can lodge between the grids and cause an intermittent black and white picture. simply tap the ends of the CRT gun assembly and notice if the picture begins to flash off and on.---- with a leaky picture tube after turn on the raster dims and get extremely bright.a dim picture with no green in the raster can result from a bad green assembly. a heater-to-cathode short can cause a raster to change colour or a result in no raster at all.replace the picture tube if there is severe arching in the neck of CRT. excessive brightness with retrace lines and a vertical collapse to a thin line can be caused by a bad coil on the neck board of the picture tube.rejuvenate the picture tube when there is very bright green screen. check for the resistance change on the resistors of the CRT neck board for an excessively bright picture with retrace lines.excessive dust inside the CRT spark gaps within the picture tube socket can cause the very bright raster and the chassis shutdown.a defective video amp,luminance buffer,or reference transistor can cause a bright picture with retrace lines. -------- for getting any required parts to replace you can get it from or from or from --------- thanks.please do rate the solution.thank you for using fixya.keep updated.

Sep 06, 2009 | Televison & Video

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I have a 9p5511c the picture is blurry before that the tv would make a snapping sound the picture would fade out for a second then fade back in but never lost the sound

You have a high voltage leak, one of the three crt's are arching to the metal chassis, this will cause momentary high voltage loss so your picture will fade until the voltage builds back up again.

Repairing this is hazardous because the voltage in the crt's are around 30,000 volts even with the tv unplugged. I don't suggest doing this yourself.

A technician will do the following he will attempt to stop the leak with specially formulated silicone compounds, If this fails the only alternative is to replace the picture tube that is defective.

The cost of repair depends on if the tube will have to be replaced, the initial repair using silicone should not run more than the standard service call rate for the company servicing the unit. If it is picture tube the cost could be upwards of $400.00

Sep 05, 2009 | Philips Magnavox 9P6034C 60" Rear...

2 Answers

Electrical Arching in back of tv

Check the connection of the ground. Bad connection of ground usually create this problem.
Especially the ground connection between the crt board and the wire who surround the picture tube. Let me know what you will get after this.

Sep 24, 2008 | Polaroid TTM-2401 TV

1 Answer

Krazy colours

Hi if picture is of it could be convergnce ic and that would require a tv tech cost is 250.00.

But the arching noise is usually your high voltage arching from fly back or spiltter you could take off back be careful it is very high voltage only do if you now this stuff, and you will see it arching when it is on and where ever the arc is coming from is the problem the fly back is a large transformer and is black with red high voltage lead coming out of it the leads could be bad to.
the splitter is where all the leads go into from tubes. i hope this helps cost to fix for tv shop is 350.00. thanks doctor video

May 04, 2008 | Mitsubishi WT-46809 46" Rear Projection...

1 Answer

Beeping tv that doesn't go

The flyback is the High Voltage transformer. The piccture tubes will usually make a sharp snapping noise if its arching. the beping is what leads me to believe its High volyage related usually the picture tube when it shorts will shut the set down but wont make it beep. Is this a RCA or phillips TV? Whats the model number and I will try to be more specific for you.

Apr 09, 2008 | Televison & Video

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