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Thread: Testing an Astec power supply

  1. #1
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    Lightbulb Testing an Astec power supply

    I'd like to test my Astec DC-DC Power Supply in my house before taking the time to mount it only to find out that it's bunk.

    I'm wondering if I could test it by using one of the 12v outputs and a ground from a normal AC-DC supply.
    Is this safe? (I'd realy be ****ed if I blew the Power supply before getting it into my car.)
    Thanks,
    Machs_FueL
    [SIZE=1]'91 Nissan Stanza

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  2. #2
    Raw Wave wizardPC's Avatar
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    if you do that, make sure that your ac-dc power supply give enough juice. for instance, i used a 300mw power supply to try to get a 12v air compressor to work. basically my power supply couldnt handle the power load that my compressor needed, and i thought the compressor was fubar'd. i then used my jumper cables and hooked the air compressor up to my truck's battery and lo and behold it worked.

    what's my point? dont use a really small ac-dc power supply like my dumb *** did. i just used an old cell phone charger. most of the bench units sold specifically for the purpose of having a DC power supply will be able to handle your PSU
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  3. #3
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    Machs_Fuel: If you had the Arise DC-DC (ace-865v) PSU, you could have being able to power your entire box off of the 12v comming out of the PC. Thats how easy it is for me when i take it inside the house or to work to update/program the box. NOTE that i use the 12v from a regualar PC to power up mb,45gighd,dvd,6.8" TFT screen,IR,3 Fans including CPU and etc.

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  4. #4
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    Cool

    Thanks Guys ,
    I guess I'll give it a try then ..

    wizardPC - I already tryed a small adapter rated @ 500mA. Needless to say it was a no go.
    cenwesi - How many amps does it use?
    I know the Asctec manual says at surge it uses 4.1A @ 11v.

    [This message has been edited by Machs_FueL (edited 08-21-2000).]
    [SIZE=1]'91 Nissan Stanza

    [XXXXXXXXXXXXXXXXXXXX] XX% Completed -
    Car Totaled and i bought a 20G mp3 player

    http://machs-fuel.tk
    a DIY video projector page

  5. #5
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    Angry

    ArG!

    So I hooked the whole deal together and turn it on and nothing!
    i took off the jumper that connects 19 and 20 ( the switch) and connected them manualy (with my finger) and it goes on for a sec then off. Taping on the to pins keeps it on for more then a 1/2 a sec but I can't drive like that eh?

    What GiveS?!
    [SIZE=1]'91 Nissan Stanza

    [XXXXXXXXXXXXXXXXXXXX] XX% Completed -
    Car Totaled and i bought a 20G mp3 player

    http://machs-fuel.tk
    a DIY video projector page

  6. #6
    xd
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    last time i checked my astec supply was drawing ~2.2 amps or so powering an advantech board w/ p233mmx cpu, 12 gig toshiba notebook drive, lcd backlight at 150ma and an irman plugged into the serial port

  7. #7
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    Angry

    So I've hooked my Astec Power supply to my car battery and it seems to do nothing. The input power is ~12v and the output from each pin is ~12v. Is this power supply usless or am I doing something wrong?
    [SIZE=1]'91 Nissan Stanza

    [XXXXXXXXXXXXXXXXXXXX] XX% Completed -
    Car Totaled and i bought a 20G mp3 player

    http://machs-fuel.tk
    a DIY video projector page

  8. #8
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    Make sure that your pin #1 (on the output) is not connected to ground. Pin #1 is -5V. I accidentally connected it to ground because I could not read the instructions very well. It did the very same thing that is happening to you. It would go on for a sec and then nothing.



  9. #9
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    Machs_FueL, Try hooking up both pins 19 and 20 together and to ground. Thats what worked for me. I had the same problem with touching them together manually and only working for a second or so. I also was getting a reading of 12 volts from every pin before I figured this out
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  10. #10
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    Cool

    Nutzy well I tried hooking 19 and 20 to a ground and in the process there was a spark and now I'm sure it doesn't work :0)
    But its a good because I phoned MPJA and theuy are sending me a new one tommorow.
    Sweet, Eh?
    So hopefully the new one will work good and simple.
    Thanks for the replys

    Machs_FueL
    [SIZE=1]'91 Nissan Stanza

    [XXXXXXXXXXXXXXXXXXXX] XX% Completed -
    Car Totaled and i bought a 20G mp3 player

    http://machs-fuel.tk
    a DIY video projector page

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