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IDTech monitor IBM

Discussion in 'Electronic Repair' started by GregS, Apr 9, 2008.

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  1. GregS

    GregS Guest

    I got a monitor here i wonder if anybody has worked with. Its a very high resolution 22.5
    inch. I need another power supply I think. Can't find any documentation, Sony bought the
    company out and closed it down, cause the technology was too advanced. So I
    have a 200 dpi $10,000 monitor I need documentation for, namely the power pins.
    Model MD22292-B2 or IBM 9503-DG1/DG3. I don't know if Sony ever sold this model
    and used another #. Its a 6 pin connector.

    greg
     
  2. GregS

    GregS Guest

    I had IBM looking up #s but the docs listed on the website are not available.

    Luck, I found the old broken supply. Things listed at 16 volts 10 amps.
    Probably uses all 6 pins.

    greg
     
  3. James Sweet

    James Sweet Guest

    You probably won't find documentation. Just fix the original power supply,
    any competent tech should be able to.
     
  4. GregS

    GregS Guest

    I don't think i would try to fix it. Its the second one that failed.
    Someone sent me the docs info.

    greg
     
  5. GregS

    GregS Guest

    Maybe I will try to fix it. Such a hard deal trying to find another 16 volt supply. I
    found one for $300. The IBM is on back order @$150.

    Delta supply used in IDtech IBM model, now Lenovo, but monitor not
    available due to Sony.

    greg
     
  6. James Sweet

    James Sweet Guest

  7. GregS

    GregS Guest

    16 volt supplies are hard to find. I did find one by Acopian for $270.
    I can get the orginal with some wait for $150. I looked at the supply
    and its varying voltage constantly resetting. Nothing obvious I
    can find.

    greg
     
  8. James Sweet

    James Sweet Guest


    Did you check the ESR of all the electrolytic capacitors? That's where I
    start when diagnosing switchmode power supplies.

    Probably doesn't have to be 16V exactly, 14-20V or so would probably be just
    fine, but I don't think the original supply should be hard to fix. If you
    don't know how, take it to a tech who does.
     
  9. Tim Phipps

    Tim Phipps Guest


    A lot of IBM laptops use 16V power supplies.
     
  10. GregS

    GregS Guest

    I didn't check the caps. I'll give it a shot. The supply is on order, but
    that might be a problem since its not in stock. The logic seems a bit too complex
    to troubleshoot without a diagram. You would think that the problem is likely a heat
    overload problem.

    greg
     
  11. James Sweet

    James Sweet Guest


    I wouldn't. I would think the problem is likely bad capacitors, I see it all
    the time, probably 80% of SMPS problems.
     
  12. GregS

    GregS Guest

    isn't that the major cause of capacitor failure ?

    greg
     
  13. James Sweet

    James Sweet Guest


    They fail for a variety of reasons, age, heat, electrical conditions, there
    was a large batch with defective electrolyte.

    Usually when they start to go, they work better as they warm up.
     
  14. Did you check the electrolytic capacitors? (Sorry if I missed this
    in a previous reply.)

    There are 15 V power supplies on eBay. Some may have enough adjustment
    range to give you 16 V if that is absolutely needed.

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  15. GregS

    GregS Guest


    I got my ESR meter and will check today.
    The OEM supply has a coaxial looking supply cord. It has a little red
    wire running through the center bundle for a sense line. I don't see
    anything like that often.

    greg
     
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