Question about Curtis-Mathis CM27101S TV

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Horizontal adjustment. tHE PICTURE goes above and below the screen, so the heads are being cut off, there are no visible knobs to adjust the horizontal settings. HELP

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  • Shawdom1 Nov 16, 2008

    tHE PICTURE goes above and below the screen, so the heads are being cut off, there are no visible knobs to adjust the horizontal settings. HELP

  • mikept Dec 12, 2008

    The picture goes above and below the screen. How is it adjusted?

  • sarthur203 Dec 27, 2008

    the bottom of my screen is over lapping on itself.

  • jennifercrow Jan 24, 2009

    Mine is doing th same thing.

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I have the same problem. Just what is the repair?
Garry Meyer gfm001@aol.com

Posted on Jul 27, 2008

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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

I have this television, and all of the sudden the heads are being cut off. What do I adjust to fix this problem?


Hello
The picture has more height than normal I assumes from your problem post. Just try to adjust it by entering into the picture menu of the set. Refer its user manual for details. If this do not help you, you have to check the vertical scan output section of the set. it is on the main baord, usually composed of an IC and some components around. If any of the electrolytic capacitors connected to this section have a loose solder point or a damaged one, the fault you describe here can occur. If you are handy with electronic circuit boards, pull out the main baord, locate the vertical output section and resolder most of the suspected loose solder points there. If this does not help you, replace all the electronlytic capacitors in that section [usually 5 or 6 of them]. this must solve your TVs problem. The IC is alright now, otherwise you can't get picture vertically scanned. If the vertical output IC has damaged. you see only one bright horizontal line across the screen. Here picture is there, by the hight is excess than normal. OK.

Feb 28, 2012 | Sylvania SRT2432P TV

1 Answer

White lines across tv screen


Without seeing the lines I can't be sure what your set has wrong, but here are a some possibilities:

If the lines are lines are confined to the top inch or two of the screen and the picture looks otherwise normal, the trouble is bad capacitors in the vertical output circuit. Fixable by replacing the bad parts.

If diagonal lines are across the entire face of the picture tube and the picture looks washed out, the trouble is often a bad capacitor on the 200-volt line to the picture tube. This may be on the main circuit board near the horizontal output transformer, or on the small circuit board plugged onto the end of the picture tube. Again, replacing the bad capacitor can fix this.

If your TV is actually an RCA, someone may have bumped a rear-panel adjustment. On the back of the TV near the bottom right are two small knobs. RCA left these adjustments exposed inside of putting them inside the set like other manufacturers. These sometimes get bumped if someone was behind the set cleaning, or if a pet got back there and hit them with a tail. The top knob adjusts focus, and the bottom knob adjusts something called G2 or screen voltage. If this gets turned up too high it can cause the faded picture and diagonal white lines. Turn the adjustment down until a black screen looks black instead of gray.

A bad picture tube or horizontal output transformer can also cause lines through the picture. If this is the case with your set, it's time for a new TV. The transformer is relatively inexpensive but labor costs aren't, and the repair bill may exceed $200. If the tube is bad, there's no point even considering repair. The tube cost alone exceeds the cost of new TV.

Hopefully your lines are easy and cheap to fix. Good luck, and thanks for using Fixya!

Jul 22, 2011 | RCA F35673MB 35" TV

1 Answer

Horizontal lines, they can go away for awhile if we move the TV, but they come back. Most annoying. Can't figure out if there is such a thing as a "horizontal hold" button on this thing, but I...


Hello

If your TV has nice thread like horizontal lines on the entire screen, at aboug 1 inch apart or so, it is due to the high screen voltage. In some sets, this voltage may go high due to a defect in screen control adjust preset, integrated to line output transformer [LOT].
You just open your tv and locate the screen adjust control. It can be seen on the above said LOT itself. There will be two adjustable controls, one for adjusting focus voltage, and the other for adjusting the screen voltage.
Dont touch the focus adjuster. The screen adjuster will be at the bottom of the focus control, and both of them have visual markings there stating 'Focus' and 'Screen'.
Just turn the screen adjust control a little, while looking the picture on the screen, and adjust it till the lines on your screen just disappears. Never turn more than this position. The turning must be counterclokwise, not clokwise, as this should shut of your TV.
Take every precautions when we works with an elelctrical equipment. As high as 25,000VDC points are there, while tv is working, you should be very cautious. Do this with confidence. Take care. OK.

Nov 21, 2010 | Zenith Televison & Video

1 Answer

How do you adjust the picture? Mine is zoomed in


Is this set using a cable or satellite box? I looked at the owners manual and did not see any format adjustments. If it is hooked to a box, check the settings there.

Oct 14, 2009 | Sony KP-61S75 TV

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

Sides of the picture are encroaching and making watching bothersome. Can this be adjusted by the consumer in some way?


this is most likely a problem with a capacitor going back in the horizontal stage of the tv's circuit. if the tv has a horizontal knob on the front somwhere you may be able to expand the width of the picture for while but eventually the problem will continue in which case if you know someone who knows how to replace electronic components the bad capacitor(s) will need to be replaced or the tv will have to be replaced.

May 31, 2009 | Panasonic CT-32D11 32" TV

2 Answers

Horizontal adjustment


This unit will need to be opened up to adjust that horizontal problem, There are 3 knob looking things in the unit with a phillips head adjust those until the screen moves up. I would not do it if you do not know how I would take it and pay $15 bucks to have it done. If you find this information useful? please rate Fixya if you still dont findit fixing the problem rate 1 knotch below fixya.

Apr 24, 2009 | RCA 14F512T 14" TV

1 Answer

GE 31


check electrolitc capacitors in horizontal circuit

May 09, 2008 | GE 31GT659 31" TV

1 Answer

Bottom of picture is not all the way visible.


you need to adjust the vertical setting on your tv set. are you a tech person? if you are just follow these instructions. turn the tv off and unplug it. take the back of the tv off. you will find the screen and the crt tube. on the tube, you will find the yoke of the screen follow the four wires coming down to the board. you will find small knobs. you will find writing next to these knobs. look for vertical phase. once you find it. now you have to plug the tv and do this live. be carefull. once you see the picture on the screen. adjust this knob till you see the bottom. good luck

Apr 17, 2007 | Orion STV2763 27" TV

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