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Thread: I hate myself aka RIP:Labmaster

  1. #1
    Join Date
    Apr 2006
    Location
    Miami, FL
    Posts
    3,563

    Default I hate myself aka RIP:Labmaster

    Ugh, so I went to test a laser, and grabbed the wrong AC adapter, instead of 9v center pin NEGATIVE (PS: FUCK YOU Coherent!!!) I put a 9v center pin POSITIVE

    poped my coherent labmaster

    had to replace some tantalum caps and got it to turn back on but it failed the self test, after some probing it seems like the 5v reg for the sensor section is borked, so ordered a new one from mouser and crossing fingers that I can bring it back to life

  2. #2
    Join Date
    Jun 2010
    Location
    Australia
    Posts
    3,729

    Default

    I feel for ya brother.

    I am working on a new invention called the "Oh Fuck Button".

    It allows you to go back in time just 10 seconds. Handy for the "Oh Fuck" moments, just reach for the button and wham, your back just before the fatal moment.
    This space for rent.

  3. #3
    Join Date
    Feb 2011
    Location
    Knutsford, UK
    Posts
    286

    Default

    Not just Coherent but Ophir the same... Nearly had issue with this at last LEM.

  4. #4

    Default

    I did the same with a Coherent Fieldmaster a while back. Hopefully you'll be ok when you replace the regulator, for after putting a new SMT device in my unit it worked fine again.

    James
    Laser Safety
    http://www.lvroptical.com
    http://www.facebook.com/LaserSafety

    - Laser Show Safety Training, Assessment, and Realtime MPE Measurement
    - Pangolin PASS System Integrator

  5. #5
    Join Date
    Dec 2008
    Location
    Vezon, Belgium
    Posts
    1,017

    Default

    be sure to put a reverse diode..

  6. #6
    Join Date
    Feb 2005
    Location
    Switzerland
    Posts
    1,347

    Default

    Sorry for your Labmaster... And great to know that I will have to avoid using another AC adapter when I will loose the original one, or at least checking for an inverted one.

    p.s : Wayne, I'll take two "Oh fuck buttons" please, once ready

  7. #7
    Join Date
    Aug 2008
    Location
    UK
    Posts
    5,631

    Default

    I hate mistakes but the expensive ones are always the worst.

    I wonder who it was that invented that sinking feeling?

  8. #8
    Join Date
    Jun 2010
    Location
    Australia
    Posts
    3,729

    Default

    Quote Originally Posted by sbk View Post
    p.s : Wayne, I'll take two "Oh fuck buttons" please, once ready
    I am about to test my time machine, I'll get back to you yesterday.
    This space for rent.

  9. #9
    Join Date
    Apr 2006
    Location
    Miami, FL
    Posts
    3,563

    Default

    Quote Originally Posted by White-Light View Post
    I hate mistakes but the expensive ones are always the worst.

    I wonder who it was that invented that sinking feeling?
    ya hopefully I can fix it because I surely cannot afford to replace it!

    and I don't even think its worth calling Coherent, they would probably just laugh if I asked for a service manual and I would probably just cry if I asked for a repair estimate

  10. #10

    Default

    Have faith, and with a steady hand, you'll be able to replace the regulator, getting it back up and running again. From memory it was an 8 pin SOIC so not too bad to deal with.

    James
    Laser Safety
    http://www.lvroptical.com
    http://www.facebook.com/LaserSafety

    - Laser Show Safety Training, Assessment, and Realtime MPE Measurement
    - Pangolin PASS System Integrator

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