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Forum: µC & Digital Electronics Heraeus Kulzer Unixs PIC16C71-04/P


Author: Ciprian Gliguta (cipi65)
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Hi,

I now from start, it's very small chance to find a solution, but I will 
try.
I have a problem with a dental curing Heraeus Kulzer Unixs device. Same 
years ago I repair this device. The device had blow up same components ( 
BUZ357, BYT12, ICL7667CPA ). I replace this components and the device 
was ok.
Now I have a really big problem. All components I've changed are now 
blow up but now also the PIC16C71-04/P it's blow up.
The PIC16C71-04/P have a label on it 168XS3-0437.
The chance for me, is someone try to read the code from a good one, and 
he have luck to be with no code protection.

Regards,

Ciprian

Author: Thosch (Guest)
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> Now I have a really big problem.
BIG problem, indeed!

> The chance for me, is someone try to read the code from a good one, and
> he have luck to be with no code protection.
Probability for this chance will be literally zero.
Manufacturers (have to) put lots of effort in protecting their desings 
against copying ...
And if getting (some level of) protection is so simple like just setting 
the copy protection fuse, guess what manufacurers will do ...

I guess, your only chance will be to get the µC as an original spare 
part from the manufacturer.

good luck!

Author: Chris (Guest)
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I have a problem with a dental curing Heraeus Kulzer Unixs device.
The device had blow up same components ,but unfortunately the numbers
of ICs are deleted can anybody tell me the numbers of ICs.
the 3 optocoupler CNY75GA ,CD4098, I need the number for other 16 pin 
ic
14 pin and the two with 8 pin ic (the one of 8pin is ICL7667CPA I know 
it for
this forum)

Please if anybody know the above ICs number email me or write here in 
this forum

Thank you in advance

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