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MY husband fell into the large screen tv and immediately there was a dent on the screen and colors but no picture. Still sound. Is the tv tube blown?

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If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
Search the site by type in the "BRAND NAME" of your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts

Posted on May 18, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 93 Answers

SOURCE: JVC AV2649S Picture Too Large

you can see the diagnostic menu in jvc as you press both at the same the display and the picture mode buttons

Posted on Oct 18, 2007

  • 1694 Answers

SOURCE: Convergence

Color tubes are OK. Do not adjust. The issue at hand is called
convergence alignment.The repair involves-------
1)Pull chassis
2)Replace convergence IC's
3)Recheck alignment
work should be done by a skilled technician........T.

Posted on Oct 24, 2007

SOURCE: 27" Advent Flat Screen TV: Picture Missing but can hear sound

High Voltage. Check fly back Xformer.

Posted on Jan 01, 2008

SOURCE: tv screen goes black

No, if the picture of your tv screen is clear when when you watching. the troble of your tv is looseboard, and you replace your CRT socket too.

Posted on Apr 16, 2008

bobjrdns
  • 84 Answers

SOURCE: picture tube

no you have no vertical bad chip ic

Posted on Oct 21, 2008

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1 Answer

Poor picture no color


OUCH! LARGE DARK SPOT IN CENTER IS NOT GOOD FOR PROJECTION TV. YOU BURNT THE TUBES. THE LOSS OF COLOR IS THE ROOT CAUSE SOUNDS LIKE A DEFLECTION CIRCUIT PROBLEM. THE TIMING FEEDBACK IS USED TO SYNC THE COLOR CIRCUIT. IF THE TUBES LIGHT WITHOUT DEFLECTION THEY BURN THE CENTER PHOSPHOR COATING INSIDE.

Dec 24, 2009 | Televison & Video

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No picture, sounds fine. Fuse blown


This set, I am sorry to say has no bulb and has no ballast circuit. There are three picture tubes inside this TV set. What exactly was the part you pulled out? Can you post a picture of the Part you pulled out?

Jul 29, 2007 | Toshiba 46H84 46" Rear Projection...

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Dropped tv and now i only get purple and yellow as the tv colors


hi..It sounds like your tube Shadow Mask may have got
magnetised and need to be degaussed.turn off your TV
at the mains and unplug it for at least two three hours,
after that time power up your TV it should degauss the
tube at power up.
try this out..
thank u..
kindly rate my response..

May 06, 2009 | JVC AV-36260 TV

1 Answer

COLOUR PROBLEMS


Greetings!

This sounds like a degaussing (named after 19th century scientist Carl Friedrich Gauss) problem. This usually occurs one of several ways:

1. The TV fell down and went "boom".
2. Junior held a magnet up to the screen when you weren't looking.
3. There is a large, unshielded speaker near the set.
4. The TV was rotated in relation to the North/South magnetic poles of the Earth while it was running (yes, really).

All televisions have a degaussing coil built into them which is activated momentarily every time you turn on your TV. This typically will cure all minor anomolies over the course of a few days. However for a severe one like you have, it will probably require a trip to your friendly repair shop. I, personally, do not charge anyone to perform this service because it takes, literally, 5-10 seconds to degauss a TV. I simply ask them to remember me next time they go to buy a new TV or need service work. I can't say that your technician will do the same.

In the case of the first instance of the TV falling down and going "boom". If it fell with enough force to warp the shadow mask built into the picture tube, then all of the above information means nothing. The set will require a picture tube replacement to cure the problem.

Hope this helps,
Rob

Jan 14, 2009 | Televison & Video

1 Answer

Rca 62" PROJECTION FLATSCREEN - COLOR PROBLEM/FLICKERING SCREEN


Sounds like the red picture tube could be shorting internally which would cause the "all red" condition. In which case you'd have to replace the red tube. Are there horizontal (slightly slanted) lines through the picture as well when this is happening and a very very bright screen? If so it's most likely the tube.

Oct 06, 2008 | RCA F36645 TV

1 Answer

My TV fell to the ground and now the screen has different colors please help


Is it rear-projection TV or singal CRT (Picture-Tube) ?

Aug 03, 2008 | Televison & Video

1 Answer

Sony Trinitron Color Rainbow


Usually when a tv is dropped the phospher screen inside the picture tube will detatch making the rainbow color This cannot be fixed as it requires changing the picture tube. Only other thing is demagnatize it with a demagnitizing coil (used by tv techs) but not likely to fix it since it was dropped. You have a bad picture tube.

Dec 30, 2007 | Sony KV-32FS13 TV

1 Answer

Green blur bot-R and up-L corner and no audio


If a standard TV has color splotches in 1 or 2 corners of the screen, it is possible that a large magnet, such as a large speaker, is or was near the set and has magnetized the picture tube. The set has a built-in degaussing coil but it is small and will only demagnetize small magnetic fields. Make sure there are no magnets near the set and if the colors are still off, have the picture tube demagnetized with a strong portable demagnetizer. As for the audio, when there are audio output jacks on the back of the set then there is usually an option to turn the speakers off. Some sets have a switch somewhere and some sets have a setting in the audio page of the on-screen menu. Look for a switch or go into the menu, navigate to the audio page and look for a speaker setting (ON / OFF) and make sure the speakers are set to ON.

Aug 28, 2007 | Konka K2386U 23" TV

1 Answer

Panasonic Color Rings


It sounds like you have a warped shadow mask in your picture tube if your set uses a picture tube. A shadow mask is like a screen wire that lets the three color guns shoot electrons to their respective phosphor dot on the screen to produce the three primary colors which are mixed properly to produce the scene that is being shown. In other words you have a bad picture tube. Stargazer

Aug 12, 2007 | Panasonic CT-27SF37 27" TV

1 Answer

Red Screen


Sounds like the red color tube is goeing bad you wil hafto call in a tech to conferm it Sony is noted for tubes goeing bad, in the future leave sony alone

Sep 24, 2006 | Sony KP-57HW40 57" Rear Projection...

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