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In Reply to: RE: Linear PSU again: help needed posted by Bibo01 on December 12, 2010 at 12:04:55
OK. But I think it would be acceptable to unite cables no.3 and no.2.
Delay circuit for pwr_ok works from system board's PS_ON input signal and so it's useful to place it near P24 socket.
http://cmp2-mihaylov.narod.ru/
Follow Ups:
Mihaylov,
You suggested "separate low-power psu for 5VSB and pwr_ok".
Do you mean, "separate from your main +5V linear supply?
Did you mention this in your PDF design plan?
Could you please tell why and what kind of low-power psu?
I would need your info to implement it.
Thanks
-Do you mean, "separate from your main +5V linear supply?- Yes.
-Did you mention this in your PDF design plan?- No. It's a new option offered Greg and improving a sound.
I use such linear psu for 5VSB and pwr_ok in my alternative cMP2's linear PSU (see Photos from my site).
http://cmp2-mihaylov.narod.ru/
Using your delay circuit does Pin 16 PS_ON (Green) get connected on P24?
Thanks
Yes, certainly. Pin 1 DD1 is connected to pin 16 socket P24 of the system board. The system board is started by pressing the button on Zalman's front panel.
http://cmp2-mihaylov.narod.ru/
Thanks.
I wanted to be sure becaus in your PDF design plan, on the last page, Pin 16 is set to No Connection.
"...in your PDF design plan, on the last page, Pin 16 is set to No Connection." - It's correct because delay circuit isn't use in initial variant of linear PSU for GA-G31M-ES2L system board.
http://cmp2-mihaylov.narod.ru/
Thanks a lot.
I will upgrade "my" plan :)
When you say ""separate low-power psu for 5VSB and pwr_ok", was this in your PDF design plan?
What kind of low-power psu?
Thanks
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