Question about Toshiba 57H82 57" Rear Projection Television

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Toshiba 57H82 - 57" Lower left of picture screen

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If the TV looks zig zag or scrambled and its moving aroudn the screen the hypermodule has failed.
If however it looks 3D or warped and is not moving around the convergence is the issue. You can get DIY repair kits including all parts, instructions, and support from sites such as www.TvRepairKits.com

Posted on May 01, 2011

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Posted on Jan 02, 2017

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Lines on the screen


Hello
If the lines are thin and spreaded allover the screen from top to bottom, and are equally spaced around one inch of so apart, it will be a screen voltage rise problem. You just decrese both brightness, contrast and colour contols of your TV to zero position, and look into, where there is lines are visible on the screen or not. You should notice this in a drak room, so as to see is well, or close all the doors and windows to make the circumstance to a little bit dark.
If you can see these lines still, it is clear evidence of the above said fault. To rectify this fault you should open your TV. Open the back cover of the TV, and you will see a Line Output Transformer. It is otherwse known as LOT. It can be recoganiized easely as it its size. Normally it will look black in colour and a thick wire from it goes the picture tube's final anode, and look like it is stcked to it with the help of a rubber ******. Other two wires from it goes to the picture tube base board. These two wires are, one for focus and the other for screen.
There will be two controls on the lot, which can be varied, and seem to be integrated with LOT. Among, upper one is for focus adjustment, and lower one is for screen adjustment. Both will be marked as "Screen" and "Focus". You just find out the screen control. With the healp of a screw driver it can be adjusted.
Keep the TV on, Brightness, Contrast and colour to minimum, adjust this control to a little [ a very little movement should be done, otherwise the picture will be get blurred], to just eliminate the lines you see on the screen. Focus control and screen controls are interactable, that is adjusting one may effect the other. After eliminating these lines just up the brightness and contrast control to at about their mid position and press the menu button on the TV or remote control to get the menu screen. Look at the letterings, and if it seem to be out of focus only, just adjust the focus contorl to get well focused captions. The adjustments are hot, that is while the TV is operating. Take care. Ok.

Oct 26, 2010 | Mitsubishi CS-40503 TV

1 Answer

Picture distortion on bottom left of the screen


Probably bad convergence amp ICs on the signal board.NOT something to tackle unless you are experienced tech.because they will sometimes open resistors in the circuit also.

Jan 11, 2009 | Toshiba 50H82 50" Rear Projection...

1 Answer

Brightness on my tv quit workin


open your tv.At the back you see a plyback,it is big parts of tv with a wire attached to the picture tube,that is plyback At the buttom you wiil see a two knob, the lower knob is for the screen and the upper knob is for the focus.Adjust the lower knob or screen .

Nov 16, 2008 | Toshiba 36A42 36" TV

1 Answer

Toshiba 42H83 Touch Focus Problem


I just got finished repairing the same model . The convergence modules are bad cost of repair is 250.00 for a service center to fix. My advice would be call your local service center tell them what i told you bad convergence ic and ask them how much they charge,


thanks doctor video good luck since 1987

Jun 14, 2008 | Toshiba 42H83 42" Rear Projection...

1 Answer

Blurry picture


adjust the flyback focus of your tv
just look at the flyback and you can see there the focus and the adjusting for the screen.

thats only what i know at least maybe it can help =).

Sep 23, 2007 | Toshiba 57H83 57" Rear Projection HDTV

1 Answer

New PCB SUB - But blurry and color off.


have you tried to also adjust the lenses to fine tune the focus .

Aug 28, 2007 | Samsung HCL4715W 47" Rear Projection...

2 Answers

Dark picture (HELP)


Open up the back of the set but be very carefull. Notice a large black block with a large red wire that runs up to the picture tube. on one side of that large block where the thick red wire is comming out of are two controls, one should be marked focus or F and one should be marked screen or S. With the set operating normally and not touching anything else, slowly turn the control marked screen or S clockwish till the picture gets bright enough. If you go too bright the set will shut down or you see small thin white lines so back down on the control. then touch up the focus and your good to go. good Luck.

Dec 01, 2006 | Toshiba 32A42 32" TV

1 Answer

Manual focus


1) Press and Hold the FOCUS button until to you "MF" appear in the lower left corner of the LCD Display on the back of the camera. Then you can release the Focus button. 2) Press and Hold the DISP/i button to see the Manual Focus Range. 3) While holding the DISP/i button, use the Tele/Wide Zoom Key to set the desired Manual Focus. You can see the focus change as you toggle the zoom key. 4) When you are ready, release the DISP/i button and Press the Shutter Button to take your picture. *Press the Focus Button to return to Auto Focus / Macro options

Sep 15, 2005 | Toshiba PDR-M81 Digital Camera

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