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EFM KBD 2e, Руководство пользователя, Страница: 6 / 7

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EFM KBD 2e Скачать руководство пользователя страница 6

B

C3

.001uF

On Keyboard - 100 Ohms X the number of keys minus 1

R1

10K

T1

50K

R2

10K

R3

100K

C4

.01

R4

10K

C5

.01uF

R5

100K

R6

10K

U1

U1

7

6

5

1

2

3

R7

100

P1 1M

Glide

Q1

2N3819

C8

.01uF

C6

.01uF

R8

10K

R9

10K

R10
33K

C7

33pF

D1

D2

D3

R12

100K

R13
22K

R14

100K

Q2

2N3904

C9

0.1uF

R15
10K

R18
33K

Jump

R15

P2

1M

WIDTH

*

1N4148

*

1N4148

P3

100K

Rate

R19

1K

R20
2K2

R25
22K

R26

220

R24
10K

R23
2K2

R21
10K

R22
10K

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

Out

Pitch

Out

P.Bend

Out

Mod

Out

Lag

In

KBD2E Keyboard

Interface/Converter

11/15/99 - 1/5/2001

Copyright 1999-2001 EFM

A

U3

13

14

16

12

10

9

C1

0.1uF

C2

0.1uF

+12V

-12V

S1 Gate

Disable

A

C

Mod P.Bend

3819

S G D

J112

S G

D

Q1 - 2N3918

or J112

E B C

2N3904
2N3906

1

4

5

8

1

8

9

16

TLO72

LM13600

+12V

-12V

Keyboard

Joystick

Connections for
keyboard wiring

harness

Содержание KBD 2e

Страница 1: ...ohm 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 ca...

Страница 2: ...plastic on the sides of 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 on The keyboard is really a bunch of switches connected by a diode matrix We need a resistor chain so the diodes must be removed from the board and the solder pads cleaned The...

Страница 3: ...mon point for all the switch 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 the chain Press a key and measure the resistance It should be 100 ohms X the number of resistors between the pressed key and the end of the chain IE The lowest key should be 0 an...

Страница 4: ...PARTS LIST Small Kit C1 C2 C9 0 1 3 C3 001 1 C4 6 01 3 C7 33p 1 ...

Страница 5: ...10K 11 R3 R5 R12 R13 R14 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 50K 1 P3 100K 1 T1 10K 1 ...

Страница 6: ... R23 2K2 R21 10K R22 10K 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 Out Pitch Out P Bend Out Mod Out Lag In KBD2E Keyboard Interface Converter 11 15 99 1 5 2001 Copyright 1999 2001 EFM A U3 13 14 16 12 10 9 C1 0 1uF C2 0 1uF 12V 12V S1 Gate Dis...

Страница 7: ... B C E F K L M N O P H Jump 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 2N3918 E B C 2N3904 2N3906 1 4 5 8 1 8 9 TLO72 LM13600 5V VCO1 VCO2 VCO3 Range 1 Range2 Range 3 2 4 8 16 32 Sub 100ohm 1 X5 R 22K R 220 R9 10K R 2K2 R 10K R 10K P 50K VCA Init R10 3...

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