New member with a question

[Didier Lachieze]

(04-08-2020 12:30 AM)rprosperi Wrote:  s/n that start with 0000A... or 9999A.... were used for NFS prototypes and test units (internal, key volume customers and vendors (e.g. manuals and 3rd part books)).

Also, the self test result picture has "PP1" at the right of the display. I don't have this on my 17B, just "OK-17B-I".
PP1 could mean "Production Prototype 1"