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Thread Tools | Display Modes |
01-20-2022, 09:15 AM
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#1 |
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Member
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
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Dell DPS 1200MB A pinout
Hello
I have this power source to repair, but don´t know the pinout to get it ON. Somebody can help? Thank you. Dell DPS 1200MB.jpg DELL DPS1200MB.jpg |
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01-21-2022, 01:28 AM
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#2 |
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master hoarder
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
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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. |
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01-21-2022, 04:50 AM
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#3 |
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Member
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
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Re: Dell DPS 1200MB A pinout
Thank you
I send 2 fotos position down and the voltages on the two sides. Last edited by fpsousa; 01-21-2022 at 04:52 AM.. |
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01-21-2022, 04:54 AM
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#4 |
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Member
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
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Re: Dell DPS 1200MB A pinout
another photo side down.
Dell DPS1200MB parte baixo down.jpg |
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01-21-2022, 05:37 AM
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#5 |
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Badcaps Veteran
Join Date: Jan 2016
City & State: Sochi
My Country: russia
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Posts: 743
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Re: Dell DPS 1200MB A pinout
Photo from the Internet.
Last edited by lotas; 01-21-2022 at 06:10 AM.. |
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01-21-2022, 01:56 PM
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#6 |
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Badcaps Veteran
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: 3,370
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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.
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01-23-2022, 06:46 AM
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#7 | |
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Member
Join Date: Dec 2015
City & State: Lisbon
My Country: Portugal
Line Voltage: 230VAC 50Hz
I'm a: Knowledge Seeker
Posts: 26
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Re: Dell DPS 1200MB A pinout
Dell dps 1200mb ON.jpg
Quote:
I´ve 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.. |
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