Doboz TSNM (Touch Sensing Note Memory)

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Re: Doboz TSNM (Touch Sensing Note Memory)

Post by terje_t » Mon Dec 30, 2019 2:02 pm

Here are a couple images of my soldering:

On the most closeup there seems to be a short between pin 6 and 7 on the DAC, but I have verified that this is not the case with a multimeter. Only pin 7 and 8 are connected, as they should be.

Does this help for anyone to analyze the issue? :)

If ever someone is up for checking these same points on their own module I'd appreciate it very much too:
This is from a default (uncalibrated) module outputting a C, without any of the transpose lights on:

VOUT on IC3 (DAC): 1.44V
VREF on IC3 (DAC): 2.48V
Pitch output: 4.62V

Sending this voltage to any of my oscillators brings them into dog whistle territory of course.

Does anyone know what might be up here?


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Re: Doboz TSNM (Touch Sensing Note Memory)

Post by cranleigh » Mon Jan 06, 2020 11:26 am

I'm away from mine for the next couple of weeks but can check those voltages then if nobody else steps up :guinness:
FS: Yamaha CS60, Studio Electronics Oscillation, some other Euro bits.

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Re: Doboz TSNM (Touch Sensing Note Memory)

Post by MatrixModulator » Sat Jan 18, 2020 8:32 pm

hi everyone i repair a tsnm for a friend, he connected the pwr into the expander header so it blew up. i replaced the teensy and now it seems to work fine except the toutch plates doesnt work, so i replaced the MPR but it doesnt help.
I checked voltages coming at the power header and they are fine. voltages at the ic pins seems reasonable but i would have to check again..
What else could it be?
Thanks!! :sb:

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Post by ronski » Fri Jan 24, 2020 1:12 pm

Chopper wrote:
Sun Nov 03, 2019 6:36 pm
you gotta build me one of those for sure... (your ex-neighbour here... :wink: )
Hahaha, just saw this now

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Re: Doboz TSNM (Touch Sensing Note Memory)

Post by Pozzetronics » Wed Feb 12, 2020 7:03 pm

So does anyone know anything about this EXP header? Is an expander intended? The latest replies make it seem like Doboz is pretty inactive lately..

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Re: Doboz TSNM (Touch Sensing Note Memory)

Post by gp999 » Thu Feb 20, 2020 6:51 am

Hi everyone, I just finished my build but things not going well.
The modular is on, the led2 is responsive when I touch the panel but the matrix will not display any other thing. Only the broken C.
The roll 6 in both of the matrix is not work. And the encoder doesn’t work...
I have already checked the board is getting +12v -12v 5v.
The IC1 IC2’s vcc and mr is getting +3v3. The IC2’s Q1-Q4 is only have +2.72v, Q5 Q6is +2.91v. Is it normal?
Do anyone have some ideas what’s going on?
Please let me knows!
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