The Museum of HP Calculators
HP Forum Archive 18
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|OT: Elektronika MK-52 / dead EEPROM?|
Message #1 Posted by Thomas Radtke on 17 May 2008, 4:09 a.m.
Sorry for OT:
I just bought one of the amazing MK-52 calculators. Unfortunately, I was not able to store programs to the EEPROM. I tried the wiki example and got some unpredictable results when defining the address or doing R/W operations. Sometimes, the machine doesn't (seemingly) respond at all, and other times the display blanks and never returns until switching the calculator off.
The MK-52 operates as expected otherwise, entering and executing programs is also no problem.
Is the EEPROM dead? Can it be replaced?
|Re: OT: Elektronika MK-52 / dead EEPROM?|
Message #2 Posted by Thomas Radtke on 19 May 2008, 8:42 a.m.,
in response to message #1 by Thomas Radtke
It appears there's a replacement chip (ER2401). Any good source in europe?
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