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HP-82183A... Problem with ASTEC 0950-0408 :(
06-29-2017, 09:35 PM (This post was last modified: 06-29-2017 10:01 PM by Titi.)
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RE: HP-82183A... Problem with ASTEC 0950-0408 :(
(06-29-2017 08:18 PM)Paul Berger (Canada) Wrote:  One thing I would check would be the reference voltage at pin 7 of U3, if it is wrong the output from the +5V logic supply will be wrong. The theory section starting on page 2-4 explains in some detail how this 5V regulator works.

I find +5.04v here ! U3-pin 3 : 13.92v (with jumper W1)
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RE: HP-82183A... Problem with ASTEC 0950-0408 :( - Titi - 06-29-2017 09:35 PM



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