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Series 5+ 550 60 Plasma Pn60 E550E1FXZAL v TS02My Plasma…

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Series 5+ 550 60 Plasma...
Series 5+ 550 60 Plasma Pn60 E550E1FXZAL v TS02
My Plasma TV is 4 years old. Worked fine the first year, started acted funny the second year ("blank" dark for a second or two when it was warmed up, wouldn't stop unless I powered off and back on). Third year the screen wouldn't get bright unless I turned it on, then off, then on again.
Last week the screen wouldn't turn on at all.
What do you suggest I do?
Submitted: 3 years ago.Category: TV
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Answered in 3 hours by:
5/24/2015
TV Technician: Shahid, Technician replied 3 years ago
Shahid
Shahid, Technician
Category: TV
Satisfied Customers: 13,489
Experience: I have been repairing electronic gear since 1993 as a qualified Sony tech
Verified
Hello, my name is***** be happy to assist you.
Please allow me to ask you a few questions to diagnose the problem.
- Do you have multimeter and can check volts on circuit board inside TV to troubleshoot the problem?
Thanks.
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Customer reply replied 3 years ago
Yes, and I'm a EE with familiarity with electronics
TV Technician: Shahid, Technician replied 3 years ago
Nice, please check the Vs and Va volts at Vs-TP and VA-TP on power board while pressing power button of TV, expected volts should be approx 200V DC and 60V DC.
Do you get such readings on meter?
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Customer reply replied 3 years ago
Yes, but only for a second or so . . The voltage falls off (bleeds off) quickly to lower valuesvalues
TV Technician: Shahid, Technician replied 3 years ago
Thanks for the info.
Please again check requested volts after disconnecting left side (y-main) and right side (x-main) boards, does TV stay On for longer time now?
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Customer reply replied 3 years ago
When I disconnect the Y-Main there is no change. When I disconnect the X-Main there is zero volts and the tv logic board will not light up.
Customer reply replied 3 years ago
I disconnected the cables from the SMPS, not the cables from the logic board. Should I have disconnect those, too?
TV Technician: Shahid, Technician replied 3 years ago
Thanks for the info.
Please replug all the connectors that are unplugged for testing and check Va and Vs volts.
If volts appear even for a second then power board seems working and problem would be either in main processor board where all video input/HDMI jacks are located OR logic control board could be defective.
Please reinstall all the cables of logic control board to refresh the connections and check if TV works or acts the same.
If problem still persist then I would go for main board swapping, please check with following board supplier to get replacement board or search/google it with the part number off of main board in TV to get better price..
http://www.shopjimmy.com/catalogsearch/result/?q=Pn60E550D1FX
I trust my input will help you out. Please feel free to respond if you have any additional questions.
A positive rating to answer would be greatly appreciated, please click on smiley face/star on this page then click submit/finish button so I can get credit on website for my work.
Regards,
Shahid.
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