ibanez AD202 - tweak the delay time mod...

Discussion in 'Effects, Pedals, Strings & Things' started by sf audio, Mar 29, 2008.

  1. sf audio

    sf audio Member

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    Just picked up one of these - very nice unit. Only beef is the max 400ms delay time. . I'd like a little more. I've heard that these can be modded to increase the delay times...any know how to do this?
    thanks
     
  2. duende

    duende Member

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    you can increase the delay time, but only at the compromise in fidelity.

    The Ad202 is such a killer box... I'd leave it stock, and get another delay for longer delay times.
     
  3. sf audio

    sf audio Member

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    thanks - how is this done specifically?
     
  4. ROKY

    ROKY Member

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    There are trimpots inside that control a number of functions, one of them
    being delay time.

    I maxed mine out and seem to be getting around 600ms, now; which is
    pretty good, I think...
     
  5. sf audio

    sf audio Member

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    Do you notice a decrease in fidelity? Still sound OK after tweaking?

    thanks
     
  6. zerocharisma

    zerocharisma Supporting Member

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    Just wanted to bump this old thread up to see if anyone has info on how to increase the delay time on these AD202 units? Someone mentioned above that they were able to milk their unit for up to 600 ms which would probably be the max I'd need. What mod would be involved and is there any compromise as far as the fidelity is concerned? Any info would be much appreciated!
     
  7. jumunius

    jumunius Member

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    As someone else said you can adjust a trimpot -- marked VR114 -- on the circuit board. Check out the Service Manual for more details.

    For what it's worth, when I tried this myself I felt like there was something odd about the sound quality at the longer delay settings, so I reverted to spec. Maybe I was imagining it, I don't know, it's been a while.
     
  8. KagakuNinja

    KagakuNinja Member

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    Some of those trim pots were set by technicians using an oscilloscope. You mess with them, you may never get it working right again. Just use something else for the longer delays.
     
  9. nightraven

    nightraven Senior Member

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    don't mess with it. lots of the AD202's around have been ****ed with by people looking to get more delay time and need to be properly recalibrated. the beauty of this unit is how the repeats all melt together - you don't need long delay time :)
     

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