Electronics Forum | Wed Feb 07 08:41:10 EST 2001 | dliechti
I have to design a power supply which converts 220V AC into 5V smothed DC. It has to be very small, so it shouldn't have a big transformer. Has somebody a scheme of a circuit? Thanks
Electronics Forum | Thu Jul 17 08:36:21 EDT 2008 | steveliu
How did you convert the touch screen to the monitor and mouse combination? We had the same problem two years ago and tried to do the conversion, but ended up with a new DC/DC power supply card.
Electronics Forum | Thu Jul 17 09:21:29 EDT 2008 | proy
What did the DC to DC power supply card have to do with it, and where was it in the system? Pete
Electronics Forum | Thu Jul 17 17:20:39 EDT 2008 | steveliu
The screen we had is a Planar EL7768MS. There is a small DC/DC power supply board attahced to the back of the touch screen. That PS board was toasted and caused the failure of the screen. Steve
Electronics Forum | Wed May 12 11:02:00 EDT 2010 | eugene123
Hope every one are in good condition. I am Eugene, QA Engineer from Singapore, I been assigned to perform a electromigration test for the test coupon that consist 96 test point. Test condition: 85 deg C, 88% RH and 50V DC Measure Condition: 100V DC a
Electronics Forum | Fri Jan 03 15:10:49 EST 2014 | jimmyboz
SET-MANUAL-IO Thermal alarm can be an overload relay, vacuum pump for nozzles or scrap vacuum. It may also be overtemp from the cam box "oil" temp. The 2 overload relays have reset buttons, press and try to feel for a "click". If it is directly t
Electronics Forum | Wed Dec 23 12:24:37 EST 2020 | ilavu
1. Palm down the GSM and open the safety cover to check input voltage +12VDC (at KDC2 3PL pins 2 to 3) and output voltage +5VDC (at KDC2 2PL pin 4 to 3) at the DC/DC converter. The DC/DC converter is located inside the control panel assembly ("Nose c
Electronics Forum | Wed Dec 23 19:50:28 EST 2020 | ttheis
Thanks; I have a spare power supply coming as well. I will start by swapping dc-dc converters first and if the problem persists swap the pdp power supply. I'll report back what I find.
Electronics Forum | Thu Nov 11 17:49:11 EST 2004 | pdeuel
We are having a problem with our AP-24x printer. When the vacuum motor spins up we get a 60 hz buzz into the DC drivers for the forcers and the stencle wiper. We also indicate a main power drop from 115 vac to 80 vac. The vacuum motor checks out good
Electronics Forum | Sun Nov 27 16:53:39 EST 2016 | ttheis
Our UP500 has been running great for a few months then the AC/DC 5/12/24V power supply stopped working and the PC could not communicate with the cage. The PC screen also got very noisy. We replaced the power supply with a used replacement and the ma
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