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Looking for something I'm sure I've seen (25c)
06-07-2019, 04:31 PM (This post was last modified: 06-07-2019 04:34 PM by BobVA.)
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RE: Looking for something I'm sure I've seen (25c)
I'd be suspicious of the ACT chip, which can malfunction in a surprising number of ways.

If you have some basic troubleshooting experience and the equipment, you might want to check the outputs of the power supply to rule that out. The HP-25 schematic
here has the necessary information.
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RE: Looking for something I'm sure I've seen (25c) - BobVA - 06-07-2019 04:31 PM



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