Re: HP41C issue: beeps, but the display does not work Message #3 Posted by Nenad (Croatia) on 7 Oct 2009, 2:39 p.m., in response to message #2 by Vieira, Luiz C. (Brazil)
Your procedure did something very bad to my new/old HP41C. After disassembling the machine, cleaning the zebra strips, retightening the PCB nuts, putting the screws, as well as the battery pack back, the display showed something as:
MEMORY LOST
My machine lost its memory! I thought the memory was somewhere on the PCB. Nevertheless, I looked under the desk and there was no visible HP41C memory. Then the most interesting part comes: after I pressed <alpha> and a few keys afterwards, the LCD display says:
THANKS LUIZ
Finally, I decided not to exchange the HP41C PCB with the one of the HP41CV. Knowing that the HP41CV PCB is OK, this was a new information to me that this is also the case with the HP41C PCB.
Oh, that HP41CV. When I summarize what I have already done to it, it will certainly deserve my post under the topic "condemned to HP hell".
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