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+--- Thread: Signed Logic PCB (/thread-148524.html)
Signed Logic PCB - Ignazio Cara (Italy) - 03-16-2009
Have you never seen a classic series logic PCB signed with 'PCM' near the 1820-1189 ROM? Look at the picture linked at:
Regards from Italy
Ignazio
Re: Signed Logic PCB - Randy - 03-16-2009
I've seen initials and other notations on most classics, especially those with ceramic packages.
Most pre-1990'ish Voyagers have initials of the final assembler under one of the foot pads.
Re: Signed Logic PCB - Ignazio Cara (Italy) - 03-17-2009
Thanks Randy.
Regards
Ignazio
"signing" - Frank Boehm (Germany) - 03-17-2009
this is a manufacturer mark, added to the finalized layout by the PCB manufacturer (so you could track down faulty parts); it's nothing personal :)
Re: "signing" - DaveJ - 03-18-2009
Quote:
this is a manufacturer mark, added to the finalized layout by the PCB manufacturer (so you could track down faulty parts); it's nothing personal :)
It's either a PCB manufacturers mark, or a "signature" of the board designer. If it's not on all boards, then most likely a manufacturer mark.
But I've had cases where my own "signature" on my boards have been eye-balled by management and removed in subsequent runs. At my current company we aren't allowed to add signatures to our
works of art :-(
Dave.
Edited: 18 Mar 2009, 5:58 a.m.