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KBD 2e - Keyboard Converter

 

Keyboard converter / interface. 
Features...

     

1 volt per octave control 
voltage

 

     

Key gate

 

     

Modulation LFO

 

     

Modulation VCA

 

     

Scaleable over 8 octaves.

 

     

+/-12 or +/- 15V

 

Requires one or two switch per 
key keyboard with a voltage 
divider of 1 resistor per key 
100ohm 1%.

Like most EFM modules the KBD2e is multi functional. It's primary function is to 
convert a cheap plastic keyboard into a synthesizer controller. It can be built on a panel 
and bolted in the rack or installed in the keyboard case.

Getting the keyboard can be a problem. The easiest to convert I have found so far are the 
four octave Casio's. Once you have one you can ether build it in the case it came in or 
remove the keyboard and build it a more useable new case.

All manuals and user guides at all-guides.com

Содержание KBD2e

Страница 1: ...les the KBD2e is multi functional It s primary function is to convert a cheap plastic keyboard into a synthesizer controller It can be built on a panel and bolted in the rack or installed in the keybo...

Страница 2: ...the keyboard to mount it to another case Remove the screws holding the PC boards to the back of the keyboard Then remove the PC boards Save the screws and mounting hardware we will put the boards back...

Страница 3: ...itch pads to connect Solder the connection wires to the ends of the chain and the common point before you screw it back to the keyboard Attach a digital ohm meter to the common point and one end of th...

Страница 4: ...PARTS LIST Small Kit C1 C2 C9 0 1 3 C3 001 1 C4 6 01 3 C7 33p 1 All manuals and user guides at all guides com...

Страница 5: ...100K 5 R7 100 1 R11 47K 1 R15 R17 390K 2 R18 R27 33K 2 R19 470 1 R20 R23 2 2K 2 R25 22K 1 R26 220 1 D1 D3 1N914 3 Q1 2N3819 1 Q2 2N3904 1 Q3 2N3906 1 U1 U2 U4 TLO72 3 U2 LM13600 1 Full Kit P1 1M 1 P2...

Страница 6: ...P4 50K VCA Init R27 33K R28 10K Q3 2N3906 U2 1 2 3 U2 7 6 5 U3 5 4 3 U4 U4 1 2 3 7 6 5 Joystick P5 50K Mod Range P6 50K P Bend Range B C D E F G K L M N O P H Jump R17 I J VCA In VCA CV VCA Out Gate...

Страница 7: ...ump R17 I J From LFO Tri Out Mod CV Mod Out Lag Out Lag In KBD2E to RXCV Expander Modifications 11 15 99 1 5 2001 Copyright 1999 2001 EFM U3 13 14 16 12 10 9 C1 0 1uF C2 0 1uF 12V 12V 3819 S G D 2N391...

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