Barton Musical Circuits BMC018.Analog Drum Скачать руководство пользователя страница 1 | Manualshive

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BMC018. Analog Drum.

Last updated 12-27-2020

I Features
II Schematics

A.Master Schematic.
B.Input/Decay
C.VCO
D.VCA
E.Power Connections.

III Construction

A.Parts List
B.The Board

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Содержание BMC018.Analog Drum

Страница 1: ...BMC018 Analog Drum Last updated 12 27 2020 I Features II Schematics A Master Schematic B Input Decay C VCO D VCA E Power Connections III Construction A Parts List B The Board ...

Страница 2: ...s the following controls 1 Amplitude Decay 2 Frequency Modulation Decay 3 Depth of Frequency Decay 4 Baseline frequency 5 External Frequency CV Depth It has just two inputs one for a trigger and one for external CV II Schematics On the next page is the master schematic There are highlighted sections of the master schematic that indicate what sub circuit of the module the parts correspond to these ...

Страница 3: ......

Страница 4: ...uting the capacitor s voltage onto the next stage as well as lighting up an LED indicator The output of the Frequency Decay section goes to the VCO and the output of the Amplitude Decay section goes to the VCA VCO On the far left we see the input from the decay circuit This voltage is summed with the voltages from the external frequency control and the baseline frequency control These voltages are...

Страница 5: ...a 22K and 220 ohm resistor voltage divider used to limit the signal on the input The output of the VCA goes through the onboard buffer and then a 10uf capacitor to decouple the DC bias Power Connections Here we see the two power connecters for MOTM and Eurorack style systems The supply is filtered by a 10 ohm resistor and 10uf capacitor and then 01uf decoupling capacitors are placed near the power...

Страница 6: ...acing 220 ohm 4 470 ohm 2 1K ohm 3 4 7K 2 10K 3 22K 1 33K 1 100K 6 500KA Potentiometer 2 16mm pot PCB mounted 100KB Potentiometer 3 Capacitors Value Qty Notes 01uf 5 cheap ceramic 2 54mm 0 022uf 1 Poly 5mm lead spacing 1uf 2 Electrolytic 10uf 3 Other Value Qty Notes Power Connecter 1 Either Eurorack or MOTM 14pin DIP Socket 1 16pin DIP socket 1 ...

Страница 7: ... have a problem where when turning one of the decay pot times down all the way where the decay controlled by the other pot is also shortened you should increase the value of these resistors The blue resistor controls the minimum frequency on the frequency control pot Increase it to increase the minimum frequency The green resistor is the 10K that should be replaced with a 15K for 15V WIRING The PC...

Страница 8: ...o this Leds should be pointing in the same direction as the pots The leads of the LED should be bent at a 90 degree angle the easiest way to install them is in four steps 1 Place the LED on the edge of the board facing out with it s leads going over it s pads on the PCB Make sure the bottom lip of the LED is flush with the board 2 Clip the leads 2 or 3 mm past the pads on the PCB 3 Bend the LED le...

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