Clone B&O Chips with device software for older devices?

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TWG Posted: Sun, Jun 28 2020 9:01 AM

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Hi,


does anybody know if it's possible to "simply" copy B&O Chips or did anybody actually try it?

Example: Beolab 3500 SW 3.3 chip as a source to make a few more SW 3.3. chips for older Beolab 3500 with older Software.

That would be good solution to keep parts even if supply from B&O isn't available anymore for old(er) devices.

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Dillen replied on Sun, Jun 28 2020 10:27 AM

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Depends on the storage chip type;
EPROMs (Beomaster 5500 etc.) can be copied,
Mask-programmed CPUs (Beomaster 6000 etc.) can't.

Martin 

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TWG replied on Mon, Jun 29 2020 8:30 AM

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Thank you.

so key is to identify the chip types.