I had trouble finding u14(LM 2931Z-5.0). I thought I might be able to use the 78LO5A that was suggested as a replacement on the mini board. When I try to test the voltage on pin 28 of U2 as described in part 2 of the assembly manual I get 6.3 volts. (...) (27 years ago, 28-Mar-97, to lugnet.robotics.handyboard)
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