Question about RCA 27F530T 27" TV

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Video is "Squeezed" and "Choppy"

This has been happening every once in awhile, but now it is every time I turn the screen on. There is a horizontal line about an inch off the top and it is being pushed down, while the bottom is being squeezed up and I loose almost an inch of picture in the middle. This is a very hard picture problem to explain so I hope it is not against the rules to link some images of my screen.

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Re: Video is "Squeezed" and "Choppy"

You have a problem in your vertical circuit i would recomend taking it to your local shop rca's can be real tricky to fix.

Posted on Jun 15, 2006

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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...


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 Standard (CRT) Televisions

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The left and right sides are black and the picture is squeezed into the middle on the screen. i think it is called pin amp

This problems the Horizontal IC is dead and some of it capacitors too.Might even have the FBT dead too.If still have the same problems,after the "H" IC and those capacitors are replaced.

Sep 09, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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Screen turns green

The reason the screen is green is due to the power failure detector function of the CPU IC801 on the main board detecting abnormal condition derived from the video board's horizontal output transformer. In this case causing a stoppage of the horizontal output oscillator from k23VDA (15) X-radiation protection Hold-Down circuit. What happens during the failure is the CPU remains uncorrected eventhough the power might of been shut down at times, the CPU still detects the abnormal condition and will not correct itself.
The solution could be one of three possibility going on during this condition. What seems to work every time is separation of the main board and the video board. These boards are at 90 degrees with one another, and contaminates may be settling down in the Hold-Down circuit which is also part of the seating, and connection between both causing an error. A good cleaning seems to get the connection and circuitry functioning properly.
One possibility why this works also is it refreshes the Hold-Down circuit causing a refresh of the CPU which then corrects itself. One could debate on rather the diodes holding a voltage across themselves even when the TV is turned Off for a minute then On doesn't allow the CPU to correct itself because the CPU really see's the same condition with no change because the diodes may be energizing to quickly. But when separation occurs trips the Hold-Down circuit and relays and the rest of the circuits have to energize too along with the diodes alerting the CPU of change which then corrects itself.
I really lack the time to see what is really happening and Sanyo might have too. We both came up with the solution it works, so why fix it.

Oct 31, 2009 | Sanyo HT32744 32" TV

2 Answers

Picture on TV ''squeezed'' to center of screen horizontally

Check the horizontal trafo output voltage,the capacitors and the power supply voltage (135-155V dif.the tube diameter).

Aug 14, 2009 | Panasonic Standard (CRT) Televisions

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you need some caps changed in that set in vertical circuit
i usually change about 5 caps to cure the problem
caps go bad over time

Dec 27, 2008 | Panasonic CT-32G11 32" TV

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how extended is that warranty, and what does it cover? Sounds to me like a classic video controller board about to fail.

Mar 24, 2008 | Samsung DLP HL-P5663W 56" TV

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No picture

gets white horizontal streaks for a split second, then back to no picture. i think sound will be alright. while horizontal streaks are called retace lines & is due to video section failure. please call skilled tech to fix it it is not a major problem & can be rectified. at your place without replacing much parts. your tube is ok. good luck

Sep 27, 2007 | Zenith SY2551S TV

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Green screen with almost horizontal zigzag lines

Is good that you hit it and it reacts,very likely you have loose conections in different places but for the distorted picture you need to check the horizontal driver transformer and flyback after that is corrected you need to check the complete chassis for loose conections.Take your time.Good luck.

Sep 07, 2006 | Sony FD Trinitron WEGA KV-27FS100 27" TV

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