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+--- Thread: Card reader PCB wires by color, why flopped? (/thread-21127.html)
Card reader PCB wires by color, why flopped? - jftman - 01-07-2024 03:12 AM
I am looking at two HO67 calculators doing a gummy and clutch check.
I can see at each PCB that the BLUE and ORANGE wires are flopped. When I look closely at the order going into the read/write head they are also not the same from end to end.
I can imagine that inside the head they would be prolly the same connections and they just exit in a slightly different config.
But, the PCB HAS THE ORANGE AND BLUE REVERSED.
Is this a non issue? What makes this OK? Or would it be correct to switch one of them?
RE: Card reader PCB wires by color, why flopped? - teenix - 01-07-2024 10:40 AM
This is the sketch from Tony Duell's HP-67 circuit.
cheers
Tony
RE: Card reader PCB wires by color, why flopped? - jftman - 01-07-2024 04:15 PM
Thankyou Tony.
I will unflop them.