HP-82183A... Problem with ASTEC 0950-0408 :(

[Paul Berger (Canada)]

(06-29-2017 05:25 PM)Titi Wrote:  Thank you Paul. May be I'm interest ?!

Send me an email with your address and I can tell you how much it will cost to send it to you.

(06-29-2017 05:25 PM)Titi Wrote:  My first control from the Service Manual (I make a PDF).


So, about the 2nd step, there is no CR8 element on my motherboard (and no CR7 too) ?!

The one I am looking at does not have those components either it does not even have pads for CR7. 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.

(06-29-2017 05:25 PM)Titi Wrote:  Thierry

Paul.