Question about Sanyo DS32224 TV

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32" TV Screen Problem

I think my TV is a DS32224 model. The screen suddenly narrow in the middle much like an hour glass. The picture is till clear, it just doesn't fill the screen anymore. I can find no setting in the menu that helps. A also reset the tv to factiry settings to no avail.

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Re: 32" TV Screen Problem

This is a pin cushoning fault. The failure is in the pin amp, and also most likely in the scan amplifier sections. The scan amps and pin amp in part of their functions work together to control the paralax of the picture scanning. They also control the dynamic focus.

To service this, you will need the training, service information, the testing tools, parts availability, and the necessary tools to follow up.

These types of faults can be complex to service, and can be a chalenge to even an experienced tech.

Jerry G.

Posted on Apr 27, 2008

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If hour glass on conventional set it is either pincussion circuit or power supply---by split screen if you mean folded over top to bottom in the middle that is in the same areas.

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Thin bar in the middle of the screen showing the picture

You should get the vertical IC checked starting with checking the supply voltage on it. This is a small flat IC attached to a heat sink with about 9-11 pins. This tv model should carry an LA7837 or an equivalent IC. If supply is present, check with means of a magnifying glass for dry solder joints on it. Resolder the pins on this IC if necessary and should work out fine. Model tends to suffer from this problem.

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picture 330 lines
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Jan 28, 2009 | Sanyo DS32224 TV

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Hour Glass picture on a RCA TV F32632SB

I looked up this model and found the following electolytic capacitors to be the most likely culprits within the pincushion circuit. Check these first. The starred one is the one I have replaced in the past to resolve this.

C4851 10ufd 50V
C4853 10ufd 63V
C4854 2.2ufd 100V
C4855 2.2ufd 50V
* C4862 100ufd 25V

Good luck,

Jan 13, 2009 | RCA F32632SB 32" 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

1 Answer


Yes you have a problem I'm afraid in the pincussion or horizontal width circuit. These circuits usually have alot of high voltage in them and is not a safe place to be experiementing around with. Most of the time, with a problem like this, there are bad capacitors or a correction transistor has failed. If the set is over a few years buy a new one. Good Luck

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this symptom, sometimes called the tube light effect, it is characterised by a bright thin horizontal line across the middle of the screen. this symptom is caused by a breakdown in the vertical deflection circuit. hence maybe the trouble maybe in the vertical oscillator, amplifier or output circuits. but if all i have said is not clear to you, better bring it to a qualified tv technician. good luck!

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1 Answer

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Sounds like problem in B+ voltage line to horizontal output transistor. Possible bad filter capacitor or leaky diode in power supply.

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