HP41CV Repair - Keyboard PCB Reassembly

[AndiGer]

(05-24-2021 01:50 PM)BillBee Wrote:  I have read (on this site) use of an ultrasonic cleaner and/or a keyboard bath (vinegar soln IIRC). Though I recommend some reading for confirmation.

I think - didn't check further - the bath should take place the calculator standing upright. Don't put the display under liquids. I once bathed an HP-11C upright and was careful with the LCD.
Let dry sorrowly.