Hi folks, just a small informative PM discovery to share. The Dispay Board assembly for several industrial photo copiers I've had an opportunity to part out contain a suprising amount of gold within it, both upon the connector pins on the imaging board, the hard wired P77 - 3 circuit board, and a white enclosed box glued to the circuit board that, after lifting off the thin plastic sheet cover will expose a white circuit board containing gold contacts and circuitry under a layer of silica gelatin.
The glass LED display shows faint dark lines within it that may indicate trace PM used there aswell. Here are images of the three pm bearing componants:
Image Board:
Image Board pins:
P77 - 3 Hard Wired attachment:
Front and Back:
Note: the P77 - 3 card has gold circuitry front and back, with 3 gold bearing flat packs embeded on back.
White Circuit Board:
All told, a decent find imho.
The glass LED display shows faint dark lines within it that may indicate trace PM used there aswell. Here are images of the three pm bearing componants:
Image Board:
Image Board pins:
P77 - 3 Hard Wired attachment:
Front and Back:
Note: the P77 - 3 card has gold circuitry front and back, with 3 gold bearing flat packs embeded on back.
White Circuit Board:
All told, a decent find imho.
