Question about Toshiba 27A33 27" TV

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Toshiba CF2772B New in 1992. Has black band across the bottom

Has black band across the bottom of the screen causing distortion in the viewing area. Truncated bodies and very high foreheads. Any help is welcome to determine if this TV is worth fixing,

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If the pix was good up until this point, I would take the plunge and repair it, even though it may be close to 200 US...accordianman

Posted on Nov 27, 2008

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1 Answer

What can be done to repair picture to my TV


Vertical scan output section circuit should be checked. Contact any service technician.

Aug 30, 2014 | Toshiba CF32H40 32" TV

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Toshiba CF32H40 32"TV shrinking picture with solid black on bottom. What causes this and can it be fixed?


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

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Disney princess tv suddenly narrowed the visible part of the screen. Now everything is squished into a two in wide band with all the rest of the screen is black.


if that 2 band according to you from top to bottom,it has a defective vertical stage.if this two band appears one on top and one at the bottom,it`s on vertical stage.leaky capacitors,resistance changed or resistor devalued ang ic`s, are too weak to amplify a signal to make the screen complete....

Jan 29, 2014 | Disney 13" TV

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Toshiba 32AF45 CRT TV Distortion and Flicker During Moments of High Contrast?


Check its main power regulator section circuit. Replace all the electrolytic capacitors there. This is a power supply fault.

Mar 21, 2013 | Toshiba 32AF45 32" TV

1 Answer

Picture Problem


This is a problem (one of several) caused by poor solder connections on the circuit board. RCA uses the metal shield can surrounding the tuner circuitry (the area where the cable connector is located) to provide several ground connections. Many of these connections go bad (cracks form) and the missing ground connections cause the "picture shrinking" you see. Other problems are loss of tuning, set that intermittently turns off or on by itself, set that won't turn on at all, and even more.

The repair involves removing the circuit board and flipping it over so you can remove a metal cover on the bottom, repairing the several (many) affected connections, and then reassembling. This is a relatively easy repair for someone with soldering experience and the right tools (both a high-heat soldering gun and a low-heat iron are needed). But because of the fragile circuit traces in the repair area it is possible to do more harm than good if you don't know what you're doing.

RCA produced a service bulletin several years back detailing the areas to be repaired (although they still refused to admit they just hadn't soldered the places adequately to begin with). I'm not home now so I can't check my files but I'll see if I can find a link and add a comment later. When I was in the service business we charged around $60 for the repair. You might want to get an estimate from a shop (they should already be familiar with this trouble). Or if you're looking for a reason to buy a new set, try the repair yourself. If you're successful you've saved yourself the money. If not, it wasn't working anyway!

Feb 02, 2009 | RCA F25441 25" TV

2 Answers

Big black box across the screen towards the bottom.


In some TV's closed captioning can cause this problem. turn off CC and see if that helps.

Dec 13, 2008 | Toshiba CF36G40 36" TV

1 Answer

1992 TOSHIBA TV. MODEL NO. CF2772B


could be the audio chip going bad or cold solder inside the tv

Aug 06, 2008 | Toshiba 27A33 27" TV

1 Answer

Durabrand 21" tv picture distorted


To properly diagnose this problem,access to the servicer menu will be important.Also,the service literature for the horizontal and vertical circuits may be needed.Contact a tech who can help you that is familiar with Durabrand.

Sep 25, 2007 | Durabrand DU1901 TV

1 Answer

Black horizontal lines across bottom 1/3 of screen


This is due to vertical section failure. Change the vertical supply rectifier diode and supply filters. Then check zener diode leakage in pumpup circuit section. Also check any electrolytic capacitors leakage in vertical section. If it is old model tv change vertical height, vertical lenearity presets also. I hope given details useful to you.

Aug 23, 2007 | GE 27GT722 27" TV

1 Answer

Wide black bar on bottom of screen


I you know how to repair electronics its not a hard fix. The worst case would be the vertical output IC but im thinking th its nothing more then a capacitor in the verticle sweep circuit The average cost to repair this should be around 75 to 125 bucks. Good Luck

Jun 01, 2006 | Toshiba 32A60 32" TV

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