Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Power Supplies and Power Supply Design
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 01-20-2022, 09:15 AM   #1
fpsousa
Member
 
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
Default Dell DPS 1200MB A pinout

Hello
I have this power source to repair, but dont know the pinout to get it ON.
Somebody can help?
Thank you.

Dell DPS 1200MB.jpg

DELL DPS1200MB.jpg
fpsousa is offline   Reply With Quote
Old 01-21-2022, 01:28 AM   #2
momaka
master hoarder
 
momaka's Avatar
 
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,862
Default Re: Dell DPS 1200MB A pinout

Check the voltage on the pins on the left side relative to ground.
One of them should have about 12V with the PSU plugged in. This is likely the 12V Standby (+12Vsb) rail.
And if this PSU uses active-low line for the PS-ON signal, then another of those small pins should show about 3-5V on it. If so, connect this pin to ground (via 100-1000 Ohm resistor, just to be safe) and the PSU should turn On.

But since I don't have this PSU and I am not 100% familiar with it, I suggest making a diagram to show which pin shows what voltage when the PSU is plugged into the wall. Then post the diagram here.

On that note, please use the forum's built-in image attachment function, so images don't get lost over time.
momaka is offline   Reply With Quote
Old 01-21-2022, 04:50 AM   #3
fpsousa
Member
 
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
Default Re: Dell DPS 1200MB A pinout

Thank you
I send 2 fotos position down and the voltages on the two sides.
Attached Images
File Type: jpg Dell DPS 1200MB.jpg (487.1 KB, 3 views)
File Type: jpg Dell DPS1200MB Voltages.jpg (366.0 KB, 6 views)

Last edited by fpsousa; 01-21-2022 at 04:52 AM..
fpsousa is offline   Reply With Quote
Old 01-21-2022, 04:54 AM   #4
fpsousa
Member
 
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
Default Re: Dell DPS 1200MB A pinout

another photo side down.
Dell DPS1200MB parte baixo down.jpg
fpsousa is offline   Reply With Quote
Old 01-21-2022, 05:37 AM   #5
lotas
Badcaps Veteran
 
Join Date: Jan 2016
City & State: Sochi
My Country: russia
I'm a: Knowledge Seeker
Posts: 728
Default Re: Dell DPS 1200MB A pinout

Photo from the Internet.

Last edited by lotas; 01-21-2022 at 06:10 AM..
lotas is online now   Reply With Quote
Old 01-21-2022, 01:56 PM   #6
PeteS in CA
Badcaps Veteran
 
PeteS in CA's Avatar
 
Join Date: Aug 2005
City & State: San Jose, CA
My Country: USA, Unsure of Planet
Line Voltage: 120VAC, 60Hz & 115VAC, 400Hz
I'm a: Professional Tech
Posts: 3,367
Default Re: Dell DPS 1200MB A pinout

That's a Delta Products CRPS type power supply (CRPS = Common Redundant Power Supply). Here is a pin-out chart:





Pins B24 and B25 are "NC" on a Delta webpage print-out I have. Pins B19 and B20 are SMB address pins that use 3.3V logic levels. Grounding pin A21 should enable the power supply.
__________________
PeteS in CA

Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
****************************
All that is gold does not glitter,
Not all those who wander are lost;
- J.R.R. Tolkien, The Fellowship of the Ring
****************************
To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
****************************
Laughable prediction, https://principia-scientific.com/doc...l-most-people/ ; Fully Vaxxed May 2021; Viva CallSJ "5K" (actually 3.26 miles), 9/19/21, 51:19; ZombieRunner Halloween 10K, 10/31/21, 1:49:30; ZombieRunner Quarry Lakes half marathon, 4:19:07, 12/12/21
PeteS in CA is offline   Reply With Quote
Old 01-23-2022, 06:46 AM   #7
fpsousa
Member
 
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
Default Re: Dell DPS 1200MB A pinout

Dell dps 1200mb ON.jpg
Quote:
Originally Posted by lotas View Post
Photo from the Internet.
Thank you for the help.
Ive put a resistor of 220 Ohms betwin these 3 pins and the psu goes ON.

Last edited by fpsousa; 01-23-2022 at 06:49 AM..
fpsousa is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 04:46 AM.
Did you find this forum helpful?