Re: HP-41 Card Reader always runs Message #2 Posted by Vieira, Luiz C. (Brazil) on 17 Jan 2003, 9:08 a.m., in response to message #1 by Chris Murphy
Hi;
just a hint: remember those golden plated contacts along the card path? They are "activated" by the card itself. If, by any means, one of them os missaligned and permanetly ON, the circuit will "sense" a card and try to pull it in, switching the motor to ON, too. In this case, the power supply will be almost directly connected to the motor. This may cause the calculator not to turn ON . Verify if those small plastic actuators are assembled correctly OR the metal lids are inverted or bent.
Success.
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