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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Samsung PS-42V4S plasma TV vertical lines
Hi all, what can the problem with a Samsung plasma TV model PS-42V4S
with vertical lines all over the screen. The owner says the vertical lines has become worse over time, which make me think of problems associated with electrolytic capacitor aging. Could this problem be caused by bad electrolytes in the powersupply? Check out this pictu http://i48.tinypic.com/2gw9b14.jpg Greatful for any advice, Best regards PAF |
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#2
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Samsung PS-42V4S plasma TV vertical lines
powerampfreak wrote in message
... Hi all, what can the problem with a Samsung plasma TV model PS-42V4S with vertical lines all over the screen. The owner says the vertical lines has become worse over time, which make me think of problems associated with electrolytic capacitor aging. Could this problem be caused by bad electrolytes in the powersupply? Check out this pictu http://i48.tinypic.com/2gw9b14.jpg Greatful for any advice, Best regards PAF Is the ps f set by the line rate or is it stand alone ? and maybe f marginally adjustable with a bit of pF C paralleled somewhere and so change the fringe pattern in sympathy, if a ps problem |
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#3
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Samsung PS-42V4S plasma TV vertical lines
On 14 Feb, 16:54, "N_Cook" wrote:
powerampfreak wrote in message ... Hi all, what can the problem with a Samsung plasma TV model PS-42V4S with vertical lines all over the screen. The owner says the vertical lines has become worse over time, which make me think of problems associated with electrolytic capacitor aging. Could this problem be caused by bad electrolytes in the powersupply? Check out this pictuhttp://i48.tinypic.com/2gw9b14.jpg Greatful for any advice, Best regards PAF Is the ps f set by the line rate or is it stand alone ? and maybe f marginally adjustable with a bit of pF C paralleled somewhere and so change the fringe pattern in sympathy, if a ps problem I don't know if the psu F is synced to the line F, but it is probably since it's inside the TV. I repair lots of CRT tv's but not much plasma or lcd. I suspect there is some kind of B+ to feed the line stages? Regards, PAF |
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