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Disassembly of HP41C ROMs - Printable Version

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Disassembly of HP41C ROMs - Prabhu Bhooplapur - 06-08-2011

Hi,
I am looking for information on how to disassemble the plug in ROM modules of HP41C. Thanks,
Prabhu


Re: Disassembly of HP41C ROMs - Eric Smith - 06-09-2011

If you mean physically opening them, you'll generally need to use a sharp knife to cut them open, as they are ultrasonically welded. They are not intended to be opened. As they say, "no user serviceable parts inside." Of course, some of us aren't normal users.


Re: Disassembly of HP41C ROMs - exschr - 06-09-2011

There is some information about opening the module in PPC Journal V6N7 (October 1979)

I will email you a picture of the extract.

Good luck
Roger


Re: Disassembly of HP41C ROMs - Prabhu Bhooplapur - 06-09-2011

Thanks Roger and Eric.