Yamaha DX7 Buy Damaged

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Yamaha DX7 Buy Damaged

Postby Michios » Wed Jan 03, 2018 3:29 pm

Hi forum !

I want to buy damaged yamaha.

Image
ImageImage

This said in auction :
"In the middle the last operating system Ser-7 .."
"The screen displays what I put in the last photo"

This error is change battery or something else ?
I am an electronics technician and for me the replacement of batteries will be trivial
Michios
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Re: Yamaha DX7 Buy Damaged

Postby commodorejohn » Wed Jan 03, 2018 5:58 pm

Hard to say without seeing inside. Could be loose connections on the cable connecting the front panel. Could be chip creep. Could be leaky-battery damage. Unless you can get him to open it up, ya pays the man, ya takes yer chances.
Computers: Amiga 1200, DEC VAXStation 4000/60, DEC MicroPDP-11/73
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Re: Yamaha DX7 Buy Damaged

Postby Michios » Mon Jan 08, 2018 7:15 pm

capacitors and resistors are ok
i changed battery


Now yamaha her self change number red
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