HP 41 Repair for inexperienced owner

[dbhp67]

    Hi,

Here is a picture of the nuts. Do you mean unscrewing these and maybe spraying some contact cleaner in there?

From the responses I assume it is very unlikely that a chip will be damaged.

Answer to the earlier question : Yes, there is no response whatever from the calculator at the moment. I have a basic ability to check circuits and do a visual inspection and a clean.

Thanks

DB