Question about RCA 27V520T 27" TV

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Rca tv model # 27v412t

I need to enter into the service mode on this tv. i need to adjust the horizontal side of it

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  • Anonymous Feb 28, 2009

    the video screen just turn on in the center and need adjust the horizontal display
    i want to see full screen


  • sbstoke May 10, 2009

    i cannot see the whole picture. The sides are cut off. I need to make the picture smaller





    The only time a person needs to realy adjust the pic size but this tv has no controls for that.

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What are your sympoms? keever

Posted on Mar 02, 2008

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RCA Model 27V412T Trying to fix the screen size. The edges are cut off


When the picture gets smaller that means the high voltage being applied to the picture tube is failing. The flyback transformer and the horizontal output transistor are the likely parts that fail. Power supply capacitors that have domed tops are suspect too. Parts and labor for a TV that old may surpass the price of a new TV.

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RCA F27669 TV horizontal gain control


To adjust the data value to these adjustments, you have to enter the service mode option to your set. There is no external preset resistors [as in the old model TVs] for the new version TVs.
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/
Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done.
NB: Please read and understand well, the instructions to enter the service mode, before you begin. Be very careful. Note how to "EXIT" the service mode; after entering and adjusting data. This is very important.
Type in the brand name of your device, in the search box [at the top right] of the display window, and press enter to get all related posts. It will make surf easy.

Feb 11, 2015 | RCA Standard (CRT) Televisions

1 Answer

Rca 27v412t tv picture only in middle of sceen


It is the fault with some components related with its horizontal scan output section circuit. Just check the circuit part; and check the components I've marked in red here by its horizontal scan output circuit. Beware; you're going to touch the most dangerous part of its circuit. Keep it in mind always.

24780559-dmive0z32bcpzrsafcaw1enm-4-0.jpg If you wish to see the circuit diagram in full; visit
http://schematicscom.blogspot.com/

Jul 07, 2014 | Toshiba 36A50 36" TV

1 Answer

Picture cutting off


It sounds that you have to enter its service mode to adjust both vertical and horizontal position of the picture. To Philips brand TVs, entering service mode [SAM] mode, and adjusting data values there must be done cautiously. Really it is a skilled work indeed. It will be best to contact any service technician. For more http://electronicshelponline.blogspot.com/

Jun 03, 2013 | Philips 24PT6341 24" TV

1 Answer

Which service manual setting controls horizontal size?


You're discussing about the factory mode adjustments. The horizontal width adjustments will not be there. You have to adjust it by replacing certain capacitors at the horizontal output stage.

May 18, 2013 | Panasonic CT-20G6 20" TV

1 Answer

Horizontal adjustment


What is the brand name and model number to your TV? Provide more details please. Actually what do you want to adjust? If it is horizontal width, you have to enter its service mode to select this option. If you wish to get more details about how to enter service mode to different models of remote controls, check this link.

Feb 26, 2013 | Standard (CRT) Televisions

1 Answer

Picture has shifted


Get into its service mode adjustments to adjust the horizontal shift.

Visit this link to see details. It has details about how to enter service mode to several brands and models of TV sets.

electronicshelponline(.)blogspot(.com)

in name Electro-Help

Type in the link address [without brackets] into either Google Search Box or address bar to your browser, and press Enter.

Apr 16, 2012 | Standard (CRT) Televisions

1 Answer

Picture uncentered and no on creen display


U have to trouble shoot for leaky capacitors in the video and horizontal circuits/Areas

Jan 07, 2009 | Sharp 25R-S100 25" TV

1 Answer

Horizontal size


did u try adjusting the flyback transformer

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1 Answer

Adjustment to size of picture frame - model ws6680


to get into the service menu using the remote turn the volume down with the button on the front of the tv ( do not release). Whilst holdind tv vol- button press the button on the remote with a circle and three text lines for a few secs. This should let you enter the mode.

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