 | | Help debugging.
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| Well, I didn't get far without running into a bug. In the interface/charger serial circuit, I get 17 volts at pin 2 and I get 0 volts on pin 6. The MAX232 chip is oriented to the right, and all the capacitors have their negative stripes on the left (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
| | | | | Re: Help debugging.
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| (...) which pin were you using as ground reference? Maybe redo your test using pin 15 of the Maxim as ground. First check the Maxim is getting good power and ground (pin 15 is ground, pin 16 is +5). Then re-check the voltages on pin 2 (should be +9 (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
| | | | | Re: Help debugging.
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| Okay - thanks - you were right - I mis-read the ground location and used pin 7 of the MAX232 instead of using pin 7 of J9. The chip is getting 5 volt range, but the negative voltages are in the mid-8 range - is this something to worry about? thanks (...) (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
| | | | | Re: Help debugging.
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| (...) No, mid-8's are fine. -F (28 years ago, 2-Jun-96, to lugnet.robotics.handyboard)
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