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Hi all,
First post here, and I'm in need of some debugging help for it appears that the drummer in my band has broken his TD-20 machine and doesn't know what to do about it.
A quick disclaimer: I'm not a drummer, I've never used this machine before and don't know much about it at all, so you may have to baby step me through some of the simple things like obtaining the firmware version and the like if it'll help debug this problem. I am however a computer programmer by trade, and full time geek, plus I have access to a full electronics debug lab with o-scopes, logic analyzers, fine pitch soldering stations and eeprom burners, and I'm not afraid of using any of them. I'm ready to tackle this problem down to any level of detail that it takes.
Now onto the problem:
It sounds like I've got corrupt sample data on the cymbals bank.
I pulled the battery out so I'm starting off with a completely reset system. Nothing is attached to it other than a pair of headphones.
After powering it up, the LCD displays Vpro and the LED display says 1, so without pressing any other buttons, I'm on the 1st drum in the 1st drum kit.
If I hit the Preview pad, the drum sounds fine, at any velocity.
If I page through the 1<-->15 buttons and hit the Preview pad, that samples 1-6 sound just fine. Samples 7-13 however, sound like, well, like a rocket blasting off. The volume is 5x higher than the other drum sounds, and they last 10x longer. It sounds like there are a ton of effects applied to the sample, like lots of reverb, and the the decay is long on the reverb setting that it crackles and overloads the outputs. Samples 14,15 again sound just fine.
This same issues happens on ALL the drum kits. Samples 1-6 are fine, 7-13 are corrupt, and then it's ok at 14 and 15.
So, the questions at first are, is there anything special about samples 7-13? Are they located in a particular bank of flash, or controlled differently somehow through the FX processor? To me it seems likely to be a single point of failure to have an effect such as this across the same bank of samples across all the drums, which is why I have a bit of hope that it can be fixed.
Any ideas on what to try next?
Thanks!
---------------
More experiments:
It seems there's nothing magical about sample# 7-13, it's just the instrument group that those are assigned to.
If I go into the instrument select menu, instruments 1-291 sound pretty good (I think there are some corrupt samples in there) but instrument 293 (14" p-hatHH) up through 383 (Mallet2 Rd) all sound corrupt. So is there any chance this these samples happen to be in a single bank of flash? Could it be that easy to just reflash or replace that eeprom?
First post here, and I'm in need of some debugging help for it appears that the drummer in my band has broken his TD-20 machine and doesn't know what to do about it.
A quick disclaimer: I'm not a drummer, I've never used this machine before and don't know much about it at all, so you may have to baby step me through some of the simple things like obtaining the firmware version and the like if it'll help debug this problem. I am however a computer programmer by trade, and full time geek, plus I have access to a full electronics debug lab with o-scopes, logic analyzers, fine pitch soldering stations and eeprom burners, and I'm not afraid of using any of them. I'm ready to tackle this problem down to any level of detail that it takes.
Now onto the problem:
It sounds like I've got corrupt sample data on the cymbals bank.
I pulled the battery out so I'm starting off with a completely reset system. Nothing is attached to it other than a pair of headphones.
After powering it up, the LCD displays Vpro and the LED display says 1, so without pressing any other buttons, I'm on the 1st drum in the 1st drum kit.
If I hit the Preview pad, the drum sounds fine, at any velocity.
If I page through the 1<-->15 buttons and hit the Preview pad, that samples 1-6 sound just fine. Samples 7-13 however, sound like, well, like a rocket blasting off. The volume is 5x higher than the other drum sounds, and they last 10x longer. It sounds like there are a ton of effects applied to the sample, like lots of reverb, and the the decay is long on the reverb setting that it crackles and overloads the outputs. Samples 14,15 again sound just fine.
This same issues happens on ALL the drum kits. Samples 1-6 are fine, 7-13 are corrupt, and then it's ok at 14 and 15.
So, the questions at first are, is there anything special about samples 7-13? Are they located in a particular bank of flash, or controlled differently somehow through the FX processor? To me it seems likely to be a single point of failure to have an effect such as this across the same bank of samples across all the drums, which is why I have a bit of hope that it can be fixed.
Any ideas on what to try next?
Thanks!
---------------
More experiments:
It seems there's nothing magical about sample# 7-13, it's just the instrument group that those are assigned to.
If I go into the instrument select menu, instruments 1-291 sound pretty good (I think there are some corrupt samples in there) but instrument 293 (14" p-hatHH) up through 383 (Mallet2 Rd) all sound corrupt. So is there any chance this these samples happen to be in a single bank of flash? Could it be that easy to just reflash or replace that eeprom?
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