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Vintage Synth Repair

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RE: [vintagesynthrepair] Boss DR-55 sounding problem

2008-04-10 by Scott Nordlund

I don't have a DR-55 but I downloaded the service manual for my own amusement (I'm cool like that). I would guess that the note button is double-triggering, and the sequencer then correctly plays back the wrongly-entered sequences (where you can turn the tempo down and hear two successive steps rather than a double-triggered flam), yes? If I'm understanding this correctly, the rest button shouldn't double-trigger, and you should replace C45.

To: vintagesynthrepair@yahoogroups.com
From: freckles@...
Date: Thu, 10 Apr 2008 18:10:14 +0000
Subject: [vintagesynthrepair] Boss DR-55 sounding problem

Hi just wondering if anyone has some advice/tips for me.

I have what appears to be a fully working DR-55 except the drum sounds
are double-triggering. most noticeable is the kick which obviously
flams, making it sound very farty.

I don't have a scope but i've recorded it to my laptop and can see the
double peak.

Anyone have any idea what it could be? I can mail relevant service
manual pages if that helps.

Thanks



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