Question about RCA F27636BC 27" TV

1 Answer

Picture height adjustment

The picture is too high and I can't find anywhere where the height can be adjusted. It's nowhere on the screen menu and the two knobs in the back are brightness and sharpness.

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  • richnedbal Jul 16, 2008

    Oh well. It figures. Thanks for the quick feedback however.

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  • RCA Master
  • 1,667 Answers

The screen parameters were factory set by firmware programing during production.

If over time the picture became out of spec, this is due to some components that have changed in characteristics with use and age.

The fix is to have the set properly serviced. The tech will have to troubleshoot the set to find the defective parts and change them.


Jerry G.

Posted on Jul 13, 2008

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Posted on Jan 02, 2017

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How do you adjust vertical height on sony bravia tv


Check the aspect ratio set. If it is set to wide, there will be black bars at top and bottom of the screen. Go to its picture setting menu, and adjust the settings. If it do not help you, enter its service mode to adjust the picture height. Although this is a semi-skilled work, if you have patience and concentration, you can do this adjustment. There is no need to open the TV. If you wish to get more details about how to enter service mode, and adjust the data values there, check the site linked here. http://electronicshelponline.blogspot.com/

Dec 04, 2013 | Sony BRAVIA KDL-40S2010 40 in. LCD...

Tip

Kitchen table, Screen (G2) voltage adjustment, Course 101


Well, those of you who have no idea why a Screen Voltage (technically known as G2) adjustment may interest you, here is a photo of a bad adjustment (too high).

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You may also experience smeared colors… this is caused by a low adjustment. To correct this, we need to get the back off of the TV. It would be a good time to unplug it if you have not already done so. Next we locate the FBT (Fly-Back Transformer).

be30da0.jpg

This is a 20” model and it has 2 knobs. Your FBT may vary, as some slim designs and some large tube models may have 3 knobs.

You will need to look closely at the knobs; they will be labeled “Focus” or “Screen”. On units with 3 knobs, there will be 2 focus knobs and 1 screen. For now, we will be working with at the Screen knob only.

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With the adjustments identified, we are ready to plug the TV in (including your standard cable connection) and turn it on… BECARFUL!!! For the rest of this adjustment, we will be working inside of an electrically charged TV. We also need to normalize the picture, so go into your TV menu and adjust the Picture and Brightness settings to the middle or center.

If your TV normally displays a black screen when you do not have a signal connected, ex: Video input 1, then this will be the quickest and easiest setup for you to use. However, if you are not so lucky, you may need to bust through your DVD video collection and find a “between scenes” shot that you can pause on to give you as black of a picture as possible. Eliminate as much light in the room as you can (just remember, you still need to see what your doing)… we want a good view of the screen without the interference of ambient lighting.

Once you have your black screen all set, we are now ready to proceed to the adjustment. If you have lines on the screen, see (HIGH)… if you have color smear, see (LOW).

HIGH: If you have some lines in the picture with a washed out appearance, your Screen voltage is too high. You will need to turn the Screen knob on the FBT counter-clockwise. Do this slowly, until the lines are no longer visible. If you still have a small amount of illumination coming from the screen, back it down a touch further until this just disappears.

LOW: If you have smeared colors in the picture that seem to trail of the edges, your Screen voltage is too low. You will need to turn the Screen knob on the FBT clockwise. Do this slowly, until you just see some lines zigzagging top to bottom on the screen. Now, you will need to turn the Screen knob on the FBT counter-clockwise. Do this slowly, until the lines are no longer visible. If you still have a small amount of illumination coming from the screen, back it down a touch further until this just disappears.

The final set, switch the TV input over to your cable input and check out the picture. Take a good look at some bright scenes and dark scenes. Do they look ok? Adjust the Picture and Brightness in your menu… can you set the picture to your liking? If so, you are all set. If not, double check your work (remember to normalize the Picture and Brightness setting).

feab016.jpg

If you are unable to adjust the Screen voltage as described above, you may have a High Voltage problem with your TV. This will require a repair and is not covered by this tutorial.

If you are all set and the adjustment is good, we should have a quick look at the focus adjustment. Return the TV to your Black screen setup. Press the TV menu button to give you nice fixed display to focus. Adjust the focus knob(s) until you have the clearest picture. It’s important to balance the center of the picture with the corners of the picture. If the center is too sharp and the edges and corners are blurry, it is not a good adjustment. Do your best, you are the final judge of your work here.

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Once you have finished the adjustments and verified the picture with your cable picture, you are ready to close it up and return the TV to normal service. Unplug the TV, replace the back cover… enjoy!

I hope this was helpful. If you benefit from this tutorial, please leave some feedback.

on Mar 21, 2010 | Televison & Video

1 Answer

Some channels on my tv are dark and tinted orange, I used the menu button to display the menue and scrolled down to picture but I did not know how to select picture.


Hello
Adjust colour control to zero, and check for a pure black/white picture. Adjust contrast and brightness control to minimum and check whether the picture goes completly off or a slight picture prevails. If the picture goes out when you turn down brightness control to 1/3 position, that is about 20 points, your TVs screen voltage is very low, and it can be adjustable. If the picture does not go out and more brightness prevails, screen voltage is high. If the screen voltage is high, there will be some fine lines across the screen at about an inch apart; on the whole screen from top to bottom.
Screen voltage adjustment is critical for the clarity of the picture. If it is low, no proper colour will be dispayed. If it is high, it is harmful to both picture tube and your eyes.
Never try to adjust it without proper knowledge about it. The screen control can be located alongwith the LOT [Line Output Transformer], of your tv. There will have two adjustable controls there, one is for Focus, and the other is for Screen. Both are interactive, that is adjusting one will effect an other.

Oct 18, 2010 | Emerson TS2587D 25" TV

1 Answer

Picture is out of line


Hi,
One of the following may be misaligned. i) Aspect ratio of your TV may be wrongly selected. i.e. select 4:3 in place of 16:9 or vice versa with your Remote . ii) Picture Width or Height may be wrongly adjusted. With the help of Remote, select MENU go to PICTURE option, reduce height or width which ever is needed.
Have a nice day Rating the solution is highly appreciated.

Mar 07, 2010 | RCA HD52W58 52" TV

1 Answer

How do I adjust the screens vertical height becausee some of the printing is below the frame?


You are in the wrong aspect ratio, either press the ratio button on the remote control (if you have this type), or go into the main menu & select the picture mode, then toggle over to aspect & adjust for a different size of picture. It looks like you are currently in the zoom size

Oct 23, 2009 | LG 37LG30 37 in. LCD HDTV

1 Answer

Model 32 sf36a picture size


most likley they are in the tech menue
you would need the service manul to access the proper proceedure the cause may be caps going bad in the vertical circuit

Aug 29, 2009 | Televison & Video

1 Answer

Picture too big for screen.


go to menu and adjust screen size(picture size)

Jul 29, 2009 | Hitachi FDX Series 43FDX10B 43" Rear...

1 Answer

VIDEO TAPE WHEN PLAYED WAVE AT THE TOP OF THE TV SCREEN


This is a common problem usually seen when playing copy protected tapes. The part of the picture affected is normally off the top of the screen. Sometimes the problem is also due to the VCR itself and differences in tapes. It's also possible for the TV itself to be causing this, although you would probably also notice this flag-waving (that's what it's called) on regular TV viewing if that were true.

Sometimes increasing the height of the picture can push the affected area off the top again. But this can also cause you to lose part of the picture you want. Also, the height adjustment may be difficult to find as it's not something normally used. On some TV's it's a small pot somewhere on the board, but most newer sets have electronic adjustments through a service menu that you need to know how to access.

I'd suggest trying another VCR first and play one of the tapes you know shows the trouble. That might be all it takes. Then consider trying to increase the picture height if it's just a small bit at the top of the screen.

Mar 12, 2009 | Zenith B25A11Z 25" TV

2 Answers

Are there internal picture controls for the WS-55315?


Good Day; OPTION MENU "MENU 0370" SERVICE MENU. CAUTION document settings before any adjustments are made. V = vertical, H = Horizontal. Good Luck, big IRISH.

May 11, 2008 | Mitsubishi WS-55315 55" Rear Projection...

1 Answer

Picture problem


It's not an adjustable problem and not all that easy to guess at either. Power supply is a usual suspect and my best suggestion would be to take it to a reliable shop for an estimate.
Bill

Mar 13, 2008 | Sansui DTV3200 32" TV

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