Members sanyc Posted March 10, 2009 Members Share Posted March 10, 2009 Just got the delay from a forum memeber (thanks, Gomez315 ). Sounds nice, but every time I get a new pedal I always open it to see what's inside )) It happened to have 3 (!) internal trimpots. Anyone knows what do they do? :poke: Link to comment Share on other sites More sharing options...
Members (⌐■_■) Posted March 10, 2009 Members Share Posted March 10, 2009 don't mess with them and you will be fine one decides how much noise is filtered and the others are clock and delay time or something like that (feel free to correct me) but don't fool with them unless it looks/sounds like they have already been messed with the reason they are there is due to the variation in components meaning each circuit must have some 'give' to allow them to all sound the same Link to comment Share on other sites More sharing options...
Members sanyc Posted March 10, 2009 Author Members Share Posted March 10, 2009 Thanks, man!I played a little bit with the DM-2 last night - sounds nice.. but I wonder what knob do I use to control delay time?? none of the 3 knobs seem to have effect on it... Is it the internal trimpot that does it? Link to comment Share on other sites More sharing options...
Members kpd78 Posted March 10, 2009 Members Share Posted March 10, 2009 Thanks, man! I played a little bit with the DM-2 last night - sounds nice.. but I wonder what knob do I use to control delay time?? none of the 3 knobs seem to have effect on it... Is it the internal trimpot that does it? the one labelled 'Repeat Rate' controls the delay time. like with most analogue delays there isn't a wide range of times available (up to around 300ms maybe less) but you should notice some difference. the Rate knob is wired 'backwards' though - longer times to the left. Link to comment Share on other sites More sharing options...
Members sanyc Posted March 10, 2009 Author Members Share Posted March 10, 2009 the one labelled 'Repeat Rate' controls the delay time. like with most analogue delays there isn't a wide range of times available (up to around 300ms maybe less) but you should notice some difference. the Rate knob is wired 'backwards' though - longer times to the left. OK, thanks! Will try Link to comment Share on other sites More sharing options...
Members Small Stone Posted March 10, 2009 Members Share Posted March 10, 2009 Gee, I didn't know about internal trimpots! I love my DM-2... Link to comment Share on other sites More sharing options...
Members tape Posted March 10, 2009 Members Share Posted March 10, 2009 yeah don't touch the internal trimpots unless its broken. analog delays are biased to work and it can be tricky to rebias it if the trimpots are out of place Link to comment Share on other sites More sharing options...
Members Radiofred Posted March 10, 2009 Members Share Posted March 10, 2009 my trimpots are outta place on my old ad-9, anyone know how i would go about fixing this? Link to comment Share on other sites More sharing options...
Members gambit Posted March 10, 2009 Members Share Posted March 10, 2009 i tweaked my DM-2.. squeezed an extra 30ms or so out of it.. which is kind of essential given it was 298ms before i tweaked it. it will change the sound of the repeats if you go too far, but then you can find some sounds you prefer.. i found some really grungey delays in a dod FX-90 that i loved way more than the standard sound. having said that, i find boss pedals less prone to sounding 'better' after tweaking though. Link to comment Share on other sites More sharing options...
Members sanyc Posted March 11, 2009 Author Members Share Posted March 11, 2009 Repeat rate - it's what messed my mind)) it really works backwards!Played a bit with the pedal last night. And I must say that it sounds great. Sure not as versatile as my DMM, but for its size and price it's great. Even Maxon/Ibanez AD9 doesn't get close. Link to comment Share on other sites More sharing options...
Members daelvo Posted May 4, 2009 Members Share Posted May 4, 2009 argh---help!! i messed around with the internal trim pots before reading these cautionary posts and now the pedal doesn't work properly. does anyone have any advice on how to reset the pots so the effect works?? thanks a million in advance! Link to comment Share on other sites More sharing options...
Members tape Posted May 4, 2009 Members Share Posted May 4, 2009 I've never tweaked analog delay trims before but I have a feeling that the positions are "unique" to each pedal and are independantly calibrated via scope or with a really good ear. correct me if I'm wrong. Link to comment Share on other sites More sharing options...
Members shadowflux Posted May 4, 2009 Members Share Posted May 4, 2009 It's a pain to try to fix it by ear, you really need an oscilloscope and signal generator to do it properly. Here's the calibration doc though: There's no secret magic settings hidden in a delay, don't play with the trims... Link to comment Share on other sites More sharing options...
Members Blakemore Effects Posted May 4, 2009 Members Share Posted May 4, 2009 If my DM-2 doesn't self-oscillate does that mean the previous owner messed with the internal trim pots? I always thought it was weird that it wouldn't self-oscillate. If this is the case, how would I go about fixing it? Link to comment Share on other sites More sharing options...
Members gambit Posted May 4, 2009 Members Share Posted May 4, 2009 the one i had only self oscillated when you bring the delay time really low. it didn't oscillate like a DE-7 does at any time setting. Link to comment Share on other sites More sharing options...
Members Blakemore Effects Posted May 4, 2009 Members Share Posted May 4, 2009 That's a shame. I thought they were supposed to be able to self-oscillate any time you cranked the delay (like you said), like my DE7 does. Oh, well. Link to comment Share on other sites More sharing options...
Members claytonjohn18 Posted May 4, 2009 Members Share Posted May 4, 2009 IIRC, they were used for factory tweaking before shipment, not designed to make it sound any better (or more useful) If it sounds good, they're set right, but I guess they need to be set relative to one another to get the right sounds. Link to comment Share on other sites More sharing options...
Members hwaorang Posted May 4, 2009 Members Share Posted May 4, 2009 That's a shame. I thought they were supposed to be able to self-oscillate any time you cranked the delay (like you said), like my DE7 does. Oh, well. My DM-2 oscillates at any delay time, as long as the repeats are at 3 o'clock or further. Just takes a bit longer to go into oscillation at longer delay times. On short delay times it's almost instantaneous. Link to comment Share on other sites More sharing options...
Members Blakemore Effects Posted May 4, 2009 Members Share Posted May 4, 2009 My DM-2 oscillates at any delay time, as long as the repeats are at 3 o'clock or further. Just takes a bit longer to go into oscillation at longer delay times. On short delay times it's almost instantaneous. Yeah, mine does not do that haha. Wish it did, but the longest it will ever oscillate is like 3 seconds then it stops. Very weird. Link to comment Share on other sites More sharing options...
Members Gomez315 Posted May 4, 2009 Members Share Posted May 4, 2009 The DM-2 I sold to sanyc(the OP) has the most beautiful oscillation i've ever heard. The delay I use now only has 200ms of delay and the oscillation sucks really bad and I don't think it even uses trimpots. Its analog BTW(duh 200ms) Link to comment Share on other sites More sharing options...
Members sanyc Posted May 5, 2009 Author Members Share Posted May 5, 2009 The DM-2 I sold to sanyc(the OP) has the most beautiful oscillation i've ever heard. The delay I use now only has 200ms of delay and the oscillation sucks really bad and I don't think it even uses trimpots. Its analog BTW(duh 200ms) Link to comment Share on other sites More sharing options...
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