HP 41C Video interface test. Howto?

[tribidouille]

(07-17-2020 08:53 PM)Dave Frederickson Wrote:  ...
BTW, what's the difference between the ASCII code for a space and a triangle?
...

Hi,
Here is a closer view:


Space's ASCII code is 32 IIRC but I don't see triangles into the ASCII table actually.

Ok for the RAM and the 1LF4 (and thank you for proposing to sell it) but would they also be responsible of the fact that the Video Interface is not detected by the HP-41?

Regards,