Question about Standard (CRT) Televisions

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Philips 25PT2252 Hi there, The picture is curving inwards in the mid section of the screen (like an hour glass shape). Is there a vertical hold that I can adjust? rgds//Mathew

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Posted on Nov 17, 2011

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Vertical hold will adjust the frequency (refresh) which would remedy it if the picture was rolling. I had to open up my TV (not recommended unless you know what you're doing) and adjust a "pot" which will adjust your screen's hourglass problem. I hope this helps.

Posted on Aug 06, 2008

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Picture is squished in from the sides. Sides are curved inward like a fat hourglass. Vertical setting seems okay. Is there a horizontal adjustment somewhere? or is the issue more complex


Unfortunately from your description this a complex issue and cannot be adjusted out. The cause is a shorted winding in the horizontal section of the yoke, or the high voltage capacitor has decreased in value causing the hourglass effect, depending on the problem will dicktate cost to repair, I suggest an estimate before a decision is made, and if the set is more than five to ten years old consideration should be given in a replacement.

Aug 20, 2011 | Philips 30PW8402 30" TV

2 Answers

Philips TV (old) showing a horizontal line in center of screen


Check for the cracked solder joints on the IC or dried capacitors on the vertical side

Mar 28, 2009 | Standard (CRT) Televisions

2 Answers

Vertical hold


If the picture is in an hourglass shape this has nothing to do with vertical hold. Besides, on all these sets, the hold and parameters are all uPC controled through a firmware routine that is burned in to an EPROM.

It is obvious that there is a failed component somewhere because of the hour glass shape. The area of failure is most likely in the pin amp section. If the hourglass is from the sides, it would be horizontal pin. If it is top and bottom, the fault is in the vertical pin section.

A common cause is from a capacitor that has failed in the mentioned area. Sometimes it can be an IC or other type of component in the pin amp area, but not as often as failed capacitors.

You can take the set in to service the fault. I don't think you can fix this yourself unless you are trained in TV service and have the experience and setup to troubleshoot for the bad parts, and do this type of service.

Jerry G.

Apr 19, 2008 | Panasonic CT-32HX40 32" TV

1 Answer

Picture size is shrinking within screen


hi there, you have vertical section prob., repalce imeditely the electrolytic capacitor at the vertical section. do some test and check up. ty

Feb 18, 2008 | Philips 27MT3305 27" TV

1 Answer

Background lighting is bright screen scrolls vertically


hi there, you have a capacitor prob. at the vertical section., see the vertical section and repalce the electrolytic capacitor with in. do some check up, test and cleaning. ty

Feb 18, 2008 | Philips 27RF50S 27" TV

1 Answer

Tv screen has slight hourglass shape


A common fault are some of the electrolytic capacitors failing in the pin cushoning amp section, and probably in part of the scan amplifiers.

To service this will require the proper training and set-up to troubleshoot the set.

Take the set to a service center for an estimate. The cost can be at least an hour or two for the labour, and then the cost of the parts on top.

Jerry G.

Nov 06, 2007 | Sony KV-32S26 32" TV

2 Answers

Curved picture


ur problems is on the pincushion check for a capacitor that its bad on the pincusion section  good luck.

Nov 01, 2007 | Standard (CRT) Televisions

1 Answer

My phillips ts2746c221 model


If it is a horizontal line is straite or zig zag, if it is straite then problem in your vertical section,please check the supply of vertical section or output ic of vertical, if it is zig zag line then it could be dry solder in the yoke connector or vertical yoke open, please let me know the vertical ic no.

Oct 22, 2007 | Philips 27PT71B 27" TV

2 Answers

Shrinking picture


picture is starting to curve in from the sides like the shape of an hour glass. Is the tube shot? NO. is it something less costly? YES YOUR PROBLEM is in pincushion correction circuit.call skilled tech to fix it. it will not take much time. good luck.

Sep 22, 2007 | Standard (CRT) Televisions

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