Cannot get 12v DC output from Delta DPS-700EB - RC Groups
Thread Tools
Mar 31, 2012, 12:28 AM
Registered User

Cannot get 12v DC output from Delta DPS-700EB

Just got a retired Delta DPS-700EB.

After some search in the forum, I've gotten the full pinout from this post:

I connected (actually soldered) pson, pskill and ground, which brought up the power supply (apparently it made some noise). However, I measured the +12V pin with ground and got a 0 read. I am sure my digital multimeter works fine since I can get a 5v read between 5VSB and ground.

BTW, there is a led right aside the power cord socket and it's orange (should be green?).

Is there any modification I missed?

Thanks you very much
Sign up now
to remove ads between posts
Mar 31, 2012, 12:44 AM
Reduce the drama...
rick.benjamin's Avatar
lots of info
Mar 31, 2012, 11:40 AM
Registered User
Thanks Rick. I actually found the page in my post from the link you mentioned. It does have lots of info but it doesn't solve my problem. Thanks for replying.

My problem is: after I powered up the DPS-700EB (by connecting pson, pskill and ground), I don't get a voltage between +12V pin and ground. I don't think OVP or OCP has anything to do with this since there is no load in the circuit yet. And I need to mention the only led on the back of the power supply is orange.

Any comment will be helpful.

Mar 31, 2012, 11:45 AM
Registered User
If you're absolutely certain that you've properly connected the appropriate pins, then you've likely received a bum supply. Buzz out all connections and make sure that there are no inadvertent solder splashes and such that may have pulled down a wrong pin.

Uncertain whether +5VSB is live when A/C is present regardless of PS enable but will do some checking. No doubt Xandrios knows this straightaway.

Apr 01, 2012, 12:08 AM
xandrios's Avatar
Hello brightfan.

In a few instances you may get an OVP fault .

If so, then also connect the 12VS (pin 63) to the +12V

and connect the 12VS return(pin 8) to Ground.

This may be needed if the internal voltage is set to high.
Last edited by xandrios; Apr 01, 2012 at 12:15 AM.
Apr 01, 2012, 01:06 AM
Registered User
Thanks for pointing me to xandrios, Mark. The problem is solved now.

As xandrios said, a potentiometer inside the power supply was setting a high voltage which caused an OVP fault. After I turned it clockwise a little bit, the led turned from orange to green and I finally got the output voltage.

Thanks a lot for the advice, xandrios

Originally Posted by xandrios
You could also turn the voltage down internally for your DPS-700EB .

Potentiometer #5 adjusts voltage. Clockwise to decrease output voltage.

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question how to step up 11.1V 3 cell lipo DC to 12V DC for my FPV monitor? TheSelf FPV Talk 17 Sep 09, 2015 11:28 AM
Discussion DIY RC LEDs Vector Kite lanternfly RC Paragliders and Kites 15 May 08, 2012 05:31 PM
Sold Great Planes PolyCharge4 DC 4 Output LiPo Charger 3D4ever Aircraft - Electric - Batteries & Chargers (FS/W) 1 Mar 13, 2012 06:58 PM
Discussion Delta DPS-460CB C Power Supply db_sonic Batteries and Chargers 0 Oct 21, 2011 04:11 PM
Where to get a good 12V AC to DC Power Supply TopGun Power Systems 13 Apr 10, 2002 12:43 PM