MATRIXSYNTH: Roland System-100M D Set 181 Modular Synthesizer

Monday, March 16, 2020

Roland System-100M D Set 181 Modular Synthesizer

via this auction

Case SN 760229
120 SN 760260

"・ 112 [ SN 760254 ]
Check the output from each oscillator
Confirm that the pitch changes with the RANGE / PITCH knob
Confirm that the waveform switches with the waveform switch
Input a signal to the EXT PW MOD and check that the pitch has changed.
Connect the SYNC terminal and confirm that both oscillators are carriers

・ 121 [ SN 760267 ]
Check signal input from 112 VCO OUT (SIG IN 1,2,3) Both VCF1,2
Check that the signal is filtered with the CUTOFF / RES slider
MOD IN (1,2,3) Confirm that the filter changes with the LFO signal from 140,150 and the signal from 140 ENV for both VCF1,2
Jack of VCA SIG IN 1 is loose

・ 140 [ SN 760455 ]
Connect each OUT of ENV1 / ENV2 to MOD IN1 of 121 and MOD IN1 of 130, and press each MANUAL GATE button.
Confirm that sound changes on the time axis of VCF and VCA

・ 150 [ SN 760494 ]
Connect the CLOCK OUT / S & H OUT to the MOD IN of the 112 VCO and check that the tone changes
Confirm that signals are output from each noise (WHITE & PINK) from NOISE GEN
* Terminal jack of PINK NOISE 2 is quite loose

・ 181 [ SN 770253 ]
There is some gully at the contact point of the keyboard
Vendor top is broken
There are large scratches on the bottom
One key has a burn mark (?)
Portamento On / Off switch knob is broken (moving inside with an elongated object, On / Off confirmed)"

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