Martin, With key trace problems, what you want to do is check continuity with the ohm meter function of your VOM... Visually follow the trace to see where it goes.
-----Original Message----- From: M100 [mailto:[email protected]] On Behalf Of Martin Harding Sent: Friday, December 31, 2021 4:32 PM To: [email protected] Subject: [M100] Checking Traces on TRS -80 Model 100 + = keyswitch Hi, Before I ask a friend to de-solder and re-solder the + = keyswitch on my Model 100 I thought I would check if the traces were in good order. Does anyone know where on the back of the keyboard I should place the red and black pointers of my Voltmeter to check that the traces to the + = keyswitch are okay ? Also, what numbers should I expect to see on my Voltmeter screen when I do this ? Thanks Martin Harding Sent from my iPhone=
