fighting with a HP41c

[aurelio]

(01-03-2017 10:46 PM)aurelio Wrote:  

(01-03-2017 10:02 PM)Den Belillo (Martinez Ca.) Wrote:  One more addition to Raymond's suggestions:
I have had one of the contact/prongs disconnect at the solder joint but look fine.
Depending on how you were holding the probes to them, you might have been improving the contact.
Gently using a pin, you could pull or push one side away to see if they separate.

Good luck on your beautiful Tall Key unit.

Thank-you Den, I'll try again tomorrow gently, like the flight of a bee

edit: tested again it seems there is no interruption I assume or bad contact
How may I test the display without removing it?