HP-29C now has dots across the display...

[AnnoyedOne]

(09-02-2024 05:00 PM)Geoff Quickfall Wrote:  ..I only have 29C Panamatik versions...

For those that don't know the Panamatik board uses a Microchip PIC microcontroller to emulate the original HP microcode in Woodstock model HP calculators. It is used to replace a burnt out (destroyed) ACT CPU (from a power supply issue). It also adds additional functionality.

However as a modern design it doesn't behave exactly like an original ACT CPU hardwarewise. Performing my "low voltage" test on such a unit thus won't tell you much.

A1