Ah ok. So that first transistor on Q6 serves as a chopper to double the
DC voltage up to 360v when using 120. When you reconfigure the jumpers
for 240 you basically bypass that thing.
I have 240 in my shed so I'll start by seeing if there is 360v on the
input rail. If not then I'll re-jumper t
On Saturday, September 11, 2021 at 21:31, Chris Zach via cctech wrote:
> Ok, thanks!
You're welcome.
> I just tried mine again, it's a dud so I am going to have to figure it
> out. First step was to see if the rectifier had any voltage so I
> disconnected the + side and checked it with a voltme
Those are correct. I just pulled the cover off my (working) 1000 M-Series
that has a later model supply (5061-6630 date code 2601) but has the same
motherboard as yours (5061-1371). J1, J2, and J5 are as above --
Preregulator (5061-3457), Inverter (5061-3454), and Control (5061-6627). I
have th
On Thursday, September 9, 2021 at 21:30, Chris Zach via cctech wrote:
> Quick question: I've been cleaning out and repairing an HP5061 supply
> for a 1000 computer. However I didn't take a picture of the 4 boards
> when I pulled them and I want to make sure they go in the right places.
>
> Fro
At 11:41 PM 10/09/2021 -0400, you wrote:
>Hi Guy!
>
>Thanks for the post and interesting. No it's not quite the exact power
>supply but close. However
>
>Are you *sure* those cards are in the right slots?
Hmm... I was starting on that system back in Nov 2013.
I'm pretty careful about taking p
Further review: Looking at photo IMG_6081.jpg it shows the layouts of
the boards. Specifically A1 is the pre-regulator board pn 5061-3457
which is the one with the caps and A2 is Inverter board PN 5061-3454.
I think if your PS doesn't work one problem is these boards are
backwards. Don't know
Hi Guy!
Thanks for the post and interesting. No it's not quite the exact power
supply but close. However
Are you *sure* those cards are in the right slots?
Reason I am asking: When I look at the HP docs they label the
Pre-regulator board as A3A1. A3A1 also has the red LED. The inverter
Here are some disassembly pics of a HP 5061-6615 power supply.
http://everist.org/pics/hp1000_ps/5061-6615.zip 2.9M
Details:
HP 1000 Model 2113E SN 2340A03701 OPT 004 014
power supply Model 5061-6615SN 2340
Not the exact same PS as yours, but it might help?
My problem is I
Quick question: I've been cleaning out and repairing an HP5061 supply
for a 1000 computer. However I didn't take a picture of the 4 boards
when I pulled them and I want to make sure they go in the right places.
From the manual (page 99 of 92851-90001_Sections-IXB_Mar-1981.pdf) the
slots are la
