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How to fix telefunken 72cm with tube with rainbow horizontal line

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Fault with vertical scan output section circuit. That's why you see a horizontal line across the screen. {vertical scan absent]. Check and replace damaged component/s at its vertical scan output section circuit. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to CRT screen are given with illustrations. You can get an idea about the fault to an extent.

Posted on Dec 06, 2014

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Sgt Fluffy
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SOURCE: Child Lock is on and remote note working Telefunken 72cm TV

You really can't. Go to any big-box retailer and buy a universal remote. Get one with the least number of buttons on it. Follow the instructions to set it up and then once you access the menu you can find that setting and change it. Any twelve year old can help you with that.

Posted on Jul 08, 2009

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My 74cm Telefunken colour tv dont work


Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/ Type in this key phrase " my service table today " in the search box at the top right of the the home page, to get gathered some pages which has the details of practical experiences of the author of that site.

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Rainbow colors black horizontal lines about 4 inches apart


Hi,
The problem is on your y sus circuit. Please check it out and get it fixed.

Mar 12, 2011 | Televison & Video

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My son was bouncing a small ball against the screen and then it went to looking like a rainbow. Would this be the picture tube?


He may have caused some type of damage to the picture tube, but usually rainbow effects happen when magnets are present. Perhaps the ball became charged with a large amount of static, which then discharged across the tube, damaging the controlling circuits.

Jun 03, 2010 | Toshiba 36A43 36" TV

1 Answer

Child Lock is on and remote note working Telefunken 72cm TV


You really can't. Go to any big-box retailer and buy a universal remote. Get one with the least number of buttons on it. Follow the instructions to set it up and then once you access the menu you can find that setting and change it. Any twelve year old can help you with that.

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1 Answer

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Of Course i will, i hope its not the crystals as thats not covered on the warrinty!!

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1 Answer

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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.

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TV repair


It's probably a power problem--expect $200-$400 to get it fixed. This is not a do it yourself as there are extremely high voltages involved. A technician can come to your house for around $65 and diagnose the problem. Usually they can remove the board(s), fix them in the shop, then reinstall.

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1 Answer

25TS56C22125


The description of the problem points to the picture tube being bad because of the rainbow colors,as far as the white lines you might have an open resistor in the crt board,a qualified technician should take care of the problem if the set is repairable and He will know as soon as he sees it.Good luck.

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