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Thread: Boss OD-2. LED issues.

  1. #1
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    Boss OD-2. LED issues.

    Embarrassed to admit this pedal is beating me atm
    Pedal ops ok.
    Led only works on battery. Nothing on boss pwr adapter. If I provide an earth to the led at r53 it glows bright. If I Bypass D1 and r2 (ie pin 5 to ground) led bright. (Replaced both)
    At a loss. I’m sure the issue is staring me in the face!
    Cheers Gav

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    Cheers,
    Gavin
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    Tone, its in your fingers mate!!

  2. #2
    Lifetime Member Enzo's Avatar
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    schematic?

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    Education is what you're left with after you have forgotten what you have learned.

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    Supporting Member The Dude's Avatar
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    Do you have something plugged into the input jack? The ground is completed by the jack shorting ring to sleeve when a plug is inserted.

    Schematic here:
    https://www.hobby-hour.com/electroni...-schematic.gif

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    “Yeah, well, you know, that’s just, like, your opinion, man.”

  4. #4
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    Click image for larger version. 

Name:	od2-turbo-overdrive-schematic.gif 
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Size:	71.1 KB 
ID:	51406

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    Cheers,
    Gavin
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    Tone, its in your fingers mate!!

  5. #5
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    Yep,there's a jack in the input. all its grounds checked ok The pedal works fine. its just the LED. LED works fine on Battery.

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    Cheers,
    Gavin
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    Tone, its in your fingers mate!!

  6. #6
    Supporting Member The Dude's Avatar
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    D1 and R2 are good?

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    “Yeah, well, you know, that’s just, like, your opinion, man.”

  7. #7
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    Removed and Tested good. substituted both no diff.

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    Cheers,
    Gavin
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    Tone, its in your fingers mate!!

  8. #8
    Don't forget the joker g1's Avatar
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    Some boss pedals the led won't work on adapter if it's not the specified boss adapter. Does it call for the PSA or ???

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    Quote Originally Posted by The Dude View Post
    But, I did learn something. There are protons, neutrons, electrons, ............ and morons.

  9. #9
    Don't forget the joker g1's Avatar
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    Quote Originally Posted by The Dude View Post
    But, I did learn something. There are protons, neutrons, electrons, ............ and morons.

  10. #10
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    G1,
    You sir are a legend.
    Thanks
    I thought I was going mad. Certainly done my duds on this job, but have learnt something, so happy!
    Cheers mate
    Gav

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    Cheers,
    Gavin
    ------------------
    Tone, its in your fingers mate!!

  11. #11
    Don't forget the joker g1's Avatar
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    Glad to be of help. Fortunately, it was one we had just discussed recently, so I could still recall it.

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    Quote Originally Posted by The Dude View Post
    But, I did learn something. There are protons, neutrons, electrons, ............ and morons.

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