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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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Explain how the monitor buttons work


Monitor Icon Description of icon function moncont.gif Power - Turns the monitor on or off.
Brightness - Using this button or wheel the user can increase and decrease the brightness on the screen.
Contrast - Using this button or wheel can increase and decrease the amount of contrast on the screen.
Horizontal Size - Allows for the picture on the screen to be stretched to the horizontal edge of the monitor.
Vertical Size - Allows the picture on the screen to be stretched to the vertical edges of the monitor.
Horizontal Position - Allows the picture to move moved horizontally, once in the center the user can then use the Horizontal size to stretch it to have an equal amount of black border on each side.
Vertical Position - Like the Horizontal Position, using this button or wheel the user can move the picture up or down to center the picture more appropriately.
Full Screen - Sets monitor to full screen.
Degauss - This button will degauss the CRT, restoring possible color impurities. After this button has been pressed the degaussing circuit will be activated and then deactivated after a few seconds. Pressing and holding this button for a few seconds may cause your computer monitor to reset all data.
Corner and Trapezoid Correction - Using this button or wheel the user can either round the edges of the picture or move the picture inward like an hour glass or outwards.
Vertical Linearity - Sets the width of the vertical lines.
Moire - Removes or reduces the Moire effect, if any.
OSD Controls - If the monitor contains OSD controls, allows for the OSD menus to be adjusted.
Power Management - Allows the user to define the power management settings through the monitor itself and not the software.
Monitor Status - Displays the current monitor settings such as refresh rate and other settings.
Language - Sets the language on the monitor.

Aug 16, 2014 | Computers & Internet

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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

1 Answer

The picture on my rear projection tv has an hour glass appearence. Both side of the picture are curved inward towards the center of the screen.


Hi , i will suspect your convergence board is defective you have 2 ic call stk for convergence correction and pin cushion
and some low value resistor and different bad soldering ,all this needs to be replaced and then reajust ,you must have a digital
array button on the front panel button some an automatic set up call majic focus wheres you must be able to realing this but if you dont have this button is probably locate on the convergence board anyway the circuit needs to fix befor any attempt to make any adjustement ,you may need a tech to do it, ic cost about 20 box each theres two on the board and s its an hour jobs about , depend on the tech experience...
hope that will help
regards Alan

Nov 01, 2010 | Toshiba 57H81 57" Rear Projection...

1 Answer

Fujifilm s1730 when i take a picture the buildings on the outside of the picture curve inwards and are not vertical as it should be


When shooting wide angle pictures (as you would be doing when shooting buildings) the sides of the pictures will curve inwards...the wider the angle, the more pronounced the curve will be. This is perfectly normal.

Oct 01, 2010 | Cameras

1 Answer

Poor picture quality. Picture also tends to curve


The curving is caused by bad digital convergencr chips (2) located on large signal board. They need replaced along with blown pico fuses and the convergence resistors. Chips are huge compared to a regular IC. 2" x 1.5" and they will be bolted on fairly large heatsinks. Cloudy picture is most likely the coolant needs replaced in the picture tubes. This needs to be done approximately every 5 years.

May 01, 2010 | Philips Magnavox 9P6034C 60" Rear...

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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

Screen is curved inward on all 4 sides and there is a red, and a blue line that is curved at the top of the screen


This is a convergence problem.. possible deflection problem... you might need a tech to look at it...

Nov 19, 2007 | RCA HD56W66 56" HDTV

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 | Televison & Video

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 | Televison & Video

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