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Tv tube how do you discharge a tv tube

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Re: tv tube

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Posted on Nov 16, 2007

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Discharge a TV tube

If you need to remove the 2nd anode wire that connects to the opening in the top side of the tube do this:

Get a test lead with clips at both ends----connect one end to the spring and or thin strap across the bell of the tube---the gray coating on the tube is earth grounded.

Take a regular blade screwdriver and put other end of test lead to its shaft---lift up the rubber around the anode and you will see a hooked clip that you just push gently in on to pop the lead out----There may be a very brief spark when you contact the clip with the grounded test lead but just hold against the clip for a few seconds and the tube is discharged.

I do not need to remind you HAVE THE SET UNPLUGGED.!!

Look at the plug clip and push in until it engages to put it back.



Mar 21, 2012 | Combination Televisions

1 Answer

Green light blinking

So the green light on the TV blinks, but the screen doesn't come on? The first thing I'd try (because it's free), is leaving the TV unplugged overnight. It may just need a discharge. If this does work, it'll take a couple minutes for the TV to come on afterwards. You may also want to try plugging it into a different outlet just in case the power level is wrong at that outlet. Beyond that, it could be the power supply or the main picture tube. Try what I suggested above, and if it doesn't work we'll look into it further.

Sep 02, 2007 | Quasar VV-2001 20 in. Combo

1 Answer

Loud clicking sound on tv and picture breaking up

U tv is arching the HT plug on the tube needs to be cleaned .this can be a dangerous job if u dont know what u doing ,the voltage on the HT lead can be +- 10 000 volts the tube must be discharged before u do this leave the tv off for a week then take a cloth dipped in metholated spririts and clean around and under the rubber cover.this can be done without removing the plug

Apr 13, 2010 | Combination Televisions

1 Answer

A DVD is stuck inside the TV

Do not touch any components on the circuit board. Remove jewelry, wear safety glasses and gloves. Remove all the screws from the back with an arrow pointing to them and any screws on the bottom holding the PC board in. Discharge the tube if it is a CRT by grounding a screwdriver to the chassis ground with a clip lead. Slide the screwdriver under the "suction cup" on the tube with the large red wire coming out. Disconnect all the connectors from the PC board and write down how to reconnect. Slide out the PC board and retrieve the disc from the DVD mechanism. Reassemble

Aug 22, 2009 | Mintek Combination Televisions

1 Answer

Safely disassembling a tv

The tube is the most dangerous part. It contains a vacuum and also a very large charge. The easiest way to make it safe is to unplug the end by removing the pc board attached to the back. Once removed, you will notice a large round plastic "pin" that is keyed. With a pair of pliers, squeeze the end of that part. This will break the end of the tube and allow air to enter. Do this carefully and only break the very end of this glass part (indide the plastic). You will hear the air enter the tube. This will effectively remove the charge at the same time.


Apr 02, 2009 | Panasonic PV-C2010 20 in. TV/VCR Combo

1 Answer

Problems with the tv coming on

It seems like there's a problem with a component on the Power Supply of your TV or there's a problem with your Picture Tube. I don't recommend you working on TV's unless you know what you're doing since you can get badly shocked if you don't discharge the Ulter Cap on the Picture Tube. If you don't know what you're doing then I suggest you get it repaired by someone who knows what they're doing.

Apr 21, 2008 | Akai CFTD2083 20 in. TV/VCR/DVD Combo

1 Answer

Akai model ws-p28ntf-sf-d-gb (s) tv/dvd combo

I believe you either have a problem with your Power Supply inside your TV from a defective component in the circuit or you have a problem with the Picture Tube on your TV. I don't recommend you working on TV's by yourself unless you know what you're doing since you can get badly shocked. You need to discharge the Picture Tube on the TV before you work down any further. If you don't know what you're doing then you should get someone that knows what they're doing to work on your TV.

Jan 20, 2008 | Akai CFTD2083 20 in. TV/VCR/DVD Combo

1 Answer

Samsung 1080i 52 inch

This sounds like a high voltage discharge is occurring! Ask your repair guy to check the PTC and all the chassis return circuit black leads and the integrity of the connections to the discharge "spring" across the back of the picture tube. It could also be caused by poorly connected or incorrectly seated wires from the EHT transformer to picture tube pcb. These are dangerous voltages ( 20000 + volts)we are talking about, under no circumstances should an unqualified person attempt this kind of repair, also as after checking all connections, the final test must be with the set open in darkness for observation purposes.

Good luck with this one

Oct 18, 2007 | RCA D61W135D 61 in. TV/DVD Combo

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TV is dead

Could be many things, possibly a vertical IC failure, or bad soldered joints, or problems with the power supply. Considering your questions, if theres a problem with the tube, you don't want to change it, it won't be worth the expense, and since you're asking, then you probably shouldn't try anything with it. VERY dangerous, more or less like a microwave. TVs store very high voltages even when unplugged. What you could try is to unplug the TV over night, maybe the TV needs a bit of a discharge. also try another power outlet. other then that, you better take it to repair shop. Good luck

Mar 29, 2006 | RCA T27TF668 27 in. TV/VCR Combo

13 Answers

How to discharge the TV tube?

First off there is no capacitor that holds the High voltage on the tube. Its the tube itself that stores the charge and if you dont discharge a tube properly it will bite you!!You can disconnect the 2nd anode of the tube(thats what the cup is called)that puppy can hold a charge for months as I've picked up used tubes that other service men may have striped out of a junk sets and still got zapped weeks later and it can burn a hole right in you if it bites you the right way. That metal strap is the ground for the crt(the picture tube) The proper way to saftly discharge a crt would be to take a screwdriver perferably a flat tip and connect a cliplead to the screw driver and clip the other end to the ground strap. Carefully slide the screwdriver up UNDER the cup on the crt till you reach the middle of the tube as you will feel it as it wont go any farther. In the meantime you might hear a pop sound and that would be the dischargeing of the tube.. Keep that screwdriver in place a min. of 30 to 40 secs. then remove . Then pinch the cup the oppisite direction on both sides that the wire is running as the cup is held in place by a small hooks on both sides Be carefull not to rip off the cup or bend the small hole suround that the cup is attached. And never ever poke a hole in the cup as I've seen peeps do and when you turn back on a set you will have fireworks as the high voltage will arch out all over the place and if your hand or face is close to it it will get you too!! Now take the clip lead and attach to the grounding strap and clip the other end to where you just took off the cup and your all set.Good Luck with your repair

Mar 16, 2006 | Panasonic PV-C2010 20 in. TV/VCR Combo

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