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Fuses are all good ...a few caps are swollen a

Customer Question
little...sound but no picture...powers up...
fuses are all good ...a few caps are swollen a little...sound but no picture...powers up with familiar ring tone stays on and powers done with familiar ring tone in reverse.
Submitted: 2 years ago.Category: TV
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Answered in 3 minutes by:
1/24/2016
TV Technician: Anthony_Infotech, Technician replied 2 years ago
Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 15,935
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS
Verified

Hello

Welcome

Sound no pic is a common failure with plasma sets , usually its failure of one of the scan boards and maybe buffers that supply the scan boards to verify that would mean using a meter (volt/ohms) to verify my suspicions/the board(s) ordered and fitted in the set, let me know your thoughts on that and if you would be comfortable with the work.

Let me know please

Anthony

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Customer reply replied 2 years ago
I am ready and able
TV Technician: Anthony_Infotech, Technician replied 2 years ago

OK just to confirm you press the menu button of the sets own remote control and the menu DOES NOT come up correct?

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Customer reply replied 2 years ago
correct
TV Technician: Anthony_Infotech, Technician replied 2 years ago

You need to get the back off the set

Locate the power-board by tracing the power-cord to it

On this board you need to locate the Vs and Va voltage test points let me know when you spot those

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Customer reply replied 2 years ago
been there done that 66 and 208 on both boards
TV Technician: Anthony_Infotech, Technician replied 2 years ago

If you have done anything else please let me know now thanks............

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Customer reply replied 2 years ago
did you read the opening staement
TV Technician: Anthony_Infotech, Technician replied 2 years ago

It says nothing about you checking the Vs or VA just fuses ring tone

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TV Technician: Anthony_Infotech, Technician replied 2 years ago

So let me know everything yoj have done checks you have made boards you may have replaced

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Customer reply replied 2 years ago
I got 208 on both sides of the fuse...I pulled the logic feed and problem did not change
Customer reply replied 2 years ago
no boards have been changed
Customer reply replied 2 years ago
the Vs Va voltages are present with all boards plugged in when the logic board is unplugged 208 goes away.
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Anthony_Infotech
Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 15,935
15,935 Satisfied Customers
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS

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