HP Forum Archive 01

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Strange behaviour of my HP67 Message #1 Posted by marco saraniti on 20 July 1999, 10:42 a.m. Hi guys, I have an early 67 (SN 7611) that behaves strangely. The number of digits after the decimal point is correctly set by the DSP key, but it is changed to *zero* after the first operation, let me write an example: 11.5 DSP 4 11.5000 ENTER 11.5000 3 X 35. DSP 4 34.5000 it seems that the information about the number of displayed digits is lost when an operation is performed. This is my first 67 and I may be missing something trivial. Any idea ? Thanks a lot marco

Re: Strange behaviour of my HP67 Message #2 Posted by DaveC on 22 July 1999, 4:17 a.m., in response to message #1 by marco saraniti Could you try the same example with 11.54321 ?

Re: Strange behaviour of my HP67 Message #3 Posted by Tom Peddle on 21 Oct 1999, 7:07 a.m., in response to message #1 by marco saraniti My 67 (s/n 3875) does not change the DSP length after any calculations. You appear to have either a fault with the circuitry or a different ROM to mine. My 67 has the sin-1 bug. Tom. A Casio pervert to an HP convert.

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