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I have a hyundai hpt 4250 plasma television,and i have no picture anymore,just lots of colors flicking across the screen and i cannot find anyone who can repair it.any advice please.

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Probably the x-main or y-main boards

Posted on Jul 19, 2008

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Picture on Hyundai plasma TV but no sound


Check the speaker/s first. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

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Trere are lines running up and down half way across the screne they are colorful.


Try to adjust the vertical hold trimer.In adjusting the trimer you look the screen while adjusting the trimer until the screen or picture back to normal.

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dear sir good day you can find it on the link below
New York - Tel : +1-201-816-4006 - Fax: +1-201-816-4036 - M/P: +1-201-370-7549 - E-mail : jmhong@hyundaicorp.com Los Angeles - Tel : +1-310-515-1101 - Fax: +1-310-532-2017 - M/P: +1-310-721-1161 - E-mail : shpack@hyundaicorp.com Toronto - Tel : +1-416-229-6668 - Fax: +1-416-229-1224 - M/P: +1-416-779-6812 - E-mail : hbjoo@hyundaicorp.com thanks

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You usually have this type of lines when there in a problem with the frequency or voltage.
Can you be more specific as to whether this problem is there always or when u use something specifically with the tv(like vcr, cable, etc..)

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Try the Hyundai web site, or call their service rep.

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I think what has happened is that your power supply malfunctioned and what has happened is that a capacitor has blown up. I would suggest that you do a complete search of the power supply to determine the location of the blown capacitor, I would advise getting a schematic to aid you in this. If you don't have experience in electronics I would also advise taking the set to the shop or calling a repairman to take care of this issue.

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