Question about Sony KE-P42M1 42 in. Plasma Television

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Sony ke-p42m1 l have this product,and it has developed a problem that amuses me,when used for long time,the screen starts to have glittering flicks on the screen,picture distorted,and eventually picture turns to fed off as more and more of the flicking become excessive. when this happens l switch it off for some 5-10mins.when l turn it on the flicking stops,or at times may reappear again. the tv though its not wall mounted so its well ventilated from all sides buy even more than 30cm. pliz help

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  • betyouaint Mar 15, 2008

    I have a similar problem...



    My SONY KE-P42M1 plasma has developed a fault that usually occurs several hours after switch-on. It usually manifests itself as flickering multi-coloured horizontal lines mixed with some static although sometimes this is accompanied by a pulsing strobe effect. It's almost like some kind of interference but it happens on all inputs from different sources.

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I have a similar problem...

My SONY KE-P42M1 plasma has developed a fault that usually occurs several hours after switch-on. It usually manifests itself as flickering multi-coloured horizontal lines mixed with some static although sometimes this is accompanied by a pulsing strobe effect. It's almost like some kind of interference but it happens on all inputs from different sources.

Posted on Mar 15, 2008

  • betyouaint Mar 21, 2008

    Well... I think I may have a remedy for this problem. The symptoms seemed to suggest a problem with the video processing and as the fault usually appeared after several hours of the TV being on I suspected that a build up of heat might have been the issue.

    To test the theory I pulled off the back to allow better ventilation to the electronics. This made little difference but when I directed a clip-on fan towards the video processing board the fault did not reoccur even after 12 hours of continuous use. I ran it like this for several days before deciding to fit a permanent fan to cool the video processing chips. I did have a 230V 120mm fan fed directly from the TV power supply (post switch on) but this proved too noisy and so I wired in a spare mains adapter to power a quieter PC fan. So far, so good.

    It seems that on later models SONY actually included a fan for cooling... Did they know that board temperatures on earlier models were close to critical...?

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Dunguard, How long have you had this for, zazwpx

Posted on Jun 05, 2007

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1 Answer

WHY IS MY TELE FLICKERING?


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.

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press power button, press menu button. do you get a menu? if so, might be loose connections or faulty ground lead connections. with power off, reseat (unplug one, plug back in, repeat on all connectors) connectors on all the boards (including speaker cables).

Then carefully, with the unit on, check all the ground cables to ensure they are all screwed in tightly.

If the television has a menu, there could be a problem with the input board itself. Might not be grounded, might be bad altogether. If it looks fried and smells fried, its probably fried.

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Hi I have an itermittant problem with my KE-P42M1 sometimes it switches it's self on and off a number of times in a 10min period and sometimes it will run all day with no problems. It has been in the same...


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Good luck

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1 Answer

Same problem with sony ke-p42m1


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REFLECTION COATING


the ammonia in the glass cleaner ate protective coating. The only way to fix it is to replace the glass. $$$$$

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1 Answer

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