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samsung plasma 43d450a2

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malik4electronics:
 i have samsung plasma model ps43d450A2

this problem upper half screen horizontal black lines show

replace scan  bored

same problem

please help me  i need service manual

thanks for all

jordan:
http://elektrotanya.com/samsung_ps43d450a2wxzg_chassis_f82a_sm.pdf/download.html

downunder:

Possibly the upper buffer board. Try cleaning and reseating the flexi cables and connectors that go to the display panel.

malik4electronics:
thakns downunder

but. already checking  upper buffer board. Try cleaning and reseating the flexi cables and connectors

the display panel.

this same problem solution

please for help

thanks for all and jordan

downunder:

Not sure if this is applicable, but this model was infamous for X-Main failure, so much so that Samsung put out a software upgrade for the Logic board, which did very little to halt the failure rate. They subsequently released a different X-Main which was supplied with a new Logic board.

Yours sounds like a Y scan fault, but it won't be the first time I was wrong. Check the X-Main for any burn marks.

Bruce

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