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  1. Replies
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    Thanks guys. I think you have hit the nail on the...

    Thanks guys. I think you have hit the nail on the head! I used my battery charger again to power the circuit, and tried several disks, and the disks spin up every time! One of those combination...
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    I am using a renco on both units, and at the...

    I am using a renco on both units, and at the moment I am still powering them using an AT power supply (which is capable of sourcing 4.2A on the 12V rail) and a car battery charger.

    I have not yet...
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    but the same drive was working on my full...

    but the same drive was working on my full sproggy.... thats the part that frustrates me. The only reason that I built the second one was because my mainboard has onboard everything (LAN, Sound &...
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    Well, now I am totally baffled! I have replaced...

    Well, now I am totally baffled! I have replaced all the caps (except the small value caps 0.68uF, 10nF, and 100nF), and am still getting exactly the same results!

    Unless someone has any...
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    Yip, I do have an ammeter, and have tested on the...

    Yip, I do have an ammeter, and have tested on the input side of the circuit.

    When the drive does not spin up, the current drawn from the supply starts at around 100mA for about a second, then...
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    CDROM works fine, the voltage ony dips very...

    CDROM works fine, the voltage ony dips very slightly starting up or ejecting the CDROM drive.

    One thing I have noticed though, is the LM2587 seems get get much warmer when the circuit is in the...
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    OK, just tested again. When the drive does...

    OK, just tested again. When the drive does actually spin up, the voltage dips to around 10.6V for a split second as the drive kicks in, then while it spins up it rises to around 11.8V. Once the drive...
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    Thanks for the feedback guys. I have since...

    Thanks for the feedback guys.

    I have since established that the drive is not at fault here. Since I sorted out the T6 pinout changes, the drive spins up intermittently. I have tried another...
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    Thanks mp3hombre, but I have managed to solve the...

    Thanks mp3hombre, but I have managed to solve the problem... my mistake (or actually the Renco T6's fault!) It's the pin 7 and 8 switch around thing that caught me out. Strange though, as the...
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    Why won't my "mini-Sproggy" work?

    My setup is using a bit too much power at certain times for a standard Sproggy and I decided to build another scaled down version, just to supply +5v and +12v.

    I did some chopping on the full...
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    Brightness (nit) rating of screen

    Does anyone have a good website that lists the brightness levels of a lcd's? I know about this one:
    http://www.china-tft.com/Data_center/Datasheet.asp
    but it does not list the screen I am looking...
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    Thanks digitallexus, I never thought of trying...

    Thanks digitallexus, I never thought of trying that. For the 3.3V line, I am planning to put a diode on the ground pin of the MAX788 to raise the input voltage with respect to ground. In other words,...
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    After some major thought, research, and...

    After some major thought, research, and headaches, I have found that my problem may be related to Sproggy's outputs not being within the voltage tolerances expected by the main board.

    When I...
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    Thanks digitallexus. I say again.......Compaq...

    Thanks digitallexus.

    I say again.......Compaq had no regard for ATX standards on this machine! This is obviously part of the reason I can't get the motherboard to power on. If I could figure out...
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    Does anyone know if just shorting pin 14 to...

    Does anyone know if just shorting pin 14 to ground on a regular ATX power supply should turn it on? The AC supply that runs my Deskpeo does not turn on by doing this. I have tried attaching a dummy...
  16. Thread: Sproggy is ALIVE

    by LDO
    Replies
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    Mike I am with Mastero on this one, as from your...

    Mike I am with Mastero on this one, as from your pictures it looks like your diode on pin 14 is the wrong way around...hard to tell though.

    Edit: My mistake. I just had a closer look, and it...
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    digitallexus, I agree with you there, but it...

    digitallexus, I agree with you there, but it should be held low until the machine is meant to power off right? This board is staying high (+5v) all the time, and therefore Sproggy takes a while to...
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    Thanks jol. Also, what exact model of Deskpro...

    Thanks jol. Also, what exact model of Deskpro 4000 do you have?

    Mine is a Deskpro 4000MMX.


    Well, here is some more info on what I have tried tonight.

    I managed to get the power LED to turn...
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    Jol, what version of Sproggy do you use on your...

    Jol, what version of Sproggy do you use on your Deskpro? Do you have the Power OK (Pin8), 5V standby (Pin 9), and Pin 14 wires connected to you mainboard?

    I cannot get to the PDF you specified in...
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    OK, here is what I have done so far: I was not...

    OK, here is what I have done so far:

    I was not happy that the Sproggy 2.8+ was able to source enough on the 5V standby line, so I replaced the LM78L05 with a 1A LM7805. I then tried sproggy on a...
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    I have just managed to find out the following...

    I have just managed to find out the following regarding ATX specification changes - Start Quote:

    "In addition, ATX power supplies provide a "+5V Standby" (+5Vsb) rail which is generally purple....
  22. Replies
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    Edit: Sorry for the long post, but I need some...

    Edit: Sorry for the long post, but I need some serious help here!

    Thanks Jol. I tried changing the switch you pointed me to, but this didn't work. This change will probably help me once I get the...
  23. Replies
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    Sproggy and Compaq Deskpro help

    I am trying to power a Compaq Deskpro 4000 with a Sproggy 2.8+ (Mastero version). All my voltages are correct, but when I attach it to the Compaq, the Sproggy turns on (all voltages correct), but the...
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    not sure about a Sage, but a Datalux M1023...

    not sure about a Sage, but a Datalux M1023 controller will work with that screen.
  25. Thread: LCD Brightness

    by LDO
    Replies
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    2,711

    Found something else that may interest you...

    Found something else that may interest you ddt......

    http://landmarktek.com
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