EFM Synthesizers EFM Mad Mouse Pro Guía del usuario

EFM Mad Mouse Pro - Midi Synthesizer

Assembly and Setup Manual

The Mad Mouse-Pro is a midi controlled analog synthesizer. It is designed to be built as a small stomp-box sized analog so that it

can be positioned on top of your master midi controller for easy access to it's controls. The Mad Mouse story started in late 1998

when I decided to design a small inexpensive analog synthesizer that could be built for under $50 dollars. I wasn't entirely

successful in a lot of ways. First of all it requires a separate midi to control voltage converter that cost more that the synthesizer did

and I went over budget by about $20 dollars. Still....it was a working analog synthesizer for under $200 dollars and that included

about $100 bucks for the separate midi converter.

The MM-pro contains an on-board midi to cv converter, a +/-12 +5V power supply, two Odyssey type oscillators, one MS20 2-pole

resonate VCF , two LM13600 VCAs and one MS10 type LFO.

The MM-pro's midi converter responds to midi pitch, pitch bend, mod, key-gate and glide-gate. The midi messages are converted

to control voltages. These voltages are used to control the analog sections of the synthesizer.

Mad Mouse Pro - Parts List

Board Location Product Name Source Qty Used Unit Price Total

Price

Capacitors

C3, C4, C5, C6, C27 Capacitor - Ceramic 0.1 uF Mouser 140-50q9-104z 5$0.18 $0.90

C9 Capacitor - Ceramic 10 pF Mouser 140-50N5-100J 1$0.06 $0.06

C7, C8 Capacitor - Ceramic 22 pF Mouser 140-50N5-220J 2$0.06 $0.12

C28, C29 Capacitor - Ceramic .001 uF Mouser 140-50p2-102k 2$0.09 $0.18

C10, C17 Capacitor - Ceramic .01 uF Mouser 140-50p5-103k 2$0.14 $0.28

C22, C23, C25, C26 Capacitor - Electrolytic 10 uF Mouser 140-XRL25V10 4$0.05 $0.20

C24 Capacitor - Electrolytic 100 uF Mouser 140-XRL25V100 1$0.07 $0.07

C1, C2 Capacitor - Electrolytic 470 uF Mouser 140-XRL50V470 2$0.37 $0.74

C16 Capacitor - Monolithic 1 uF Mouser 539-CK06105K 1$3.71 $3.71

C11 ,C12, C13, C14,

C15 Capacitor - Monolithic 0.1 uF Mouser 539-CK05103K 5$0.43 $2.15

C20, C21 Capacitor - Polyester .0022 uF Mouser 140-PF2A222J 2$0.12 $0.24

C18, C19 Capacitor - Polyester .01 uF Mouser 140-PF2A103J 2$0.14 $0.28

Connectors

J4 Connector - 1/4" Panel Jack *

1/4" Jack Mouser 502-11 1$2.00 $2.00

J1 Connector - 2.5mm AC jack Mouser 161-0725 1$0.74 $0.74

J3, J2 Connector - DIN 5-Pin PCB Mouser 161-0503 2$1.69 $3.38

Diodes

LED2 Diode - LED 5.0mm * LED104

Green Mouser 604-L53GD 1$0.19 $0.19

LED1 Diode - LED 5.0mm * LED105

Red Mouser 604-L53HD 1$0.16 $0.16

D1, D2 Diode - Rectifier 1N4001 Mouser 583-1N4001 2$0.03 $0.06

D3- D20 Diode - Signal * 1N4148 Mouser 78-1N4148 17 $0.50 $8.50

ICs

U6 Dual 8-Bit DAC - 20 pin DIP

TLC7528CN Digi-key 1$5.89 $5.89

U4 IC 6N138 - Opto Isolator - 8 Pin

Dip Mouser 1$1.30 $1.30

U3 IC 7805T Voltage Regulator +5 Mouser 511-L7805CV 1$0.40 $0.40

U1 IC 7812T Voltage Regulator +12 Mouser 511-L7812CV 1$0.40 $0.40

U2 IC 7912T Voltage Regulator -12 Mouser 511-L7912CV 1$0.40 $0.40

U9 IC CMOS CD4051 8 chn

Mux/Dmux Mouser 511-4051 1$0.52 $0.52

U13, U14 IC LM13600 - OTA - Dual Mouser 511-NJM13600D 2$0.80 $1.60

U8 IC LM336Z-5.0 Voltage

Reference Radioshack.com 900-4524 1$1.25 $1.25

U15 IC LM556 - Timer - Dual Mouser 511-NE556 1$0.64 $0.64

U5 IC Pic Microcontroller - 18 Pin

DIP 16F84-10/P-ND EFM 1$15.25 $15.25

U12 IC TLO71 Opamp - Jfet Mouser 511-TLO71CN 1$0.40 $0.40

U7, U11 IC TLO72CP Opamp - Dual Jfet Mouser 511-TLO72ACP 2$0.74 $1.48

U10, U16 IC TLO74 - Opamp - Quad Jfet Mouser 511-TLO74CN 2$0.79 $1.58

Potentiometers

P14 Pot 16mm Panel Mount Linear

100K Mouser 13-1000-100K 1$1.15 $1.15

P1, P9, P10, P11,

P12, P13 Pot 16mm Panel Mount Linear

1M Mouser 31JN601 6$1.15 $6.90

P2, P3, P4, P5, P6,

P7, P8 Pot 16mm Panel Mount Linear

50K Mouser 31JN401 7$1.15 $8.05

Resistors

R115 Resistor 100 Mouser 271-100 1$0.09 $0.09

R29, R35, R40, R41,

R44, R46, R48, R58,

R63, R66, R67, R70,

R72, R82, R89, R90

Resistor 100K Mouser 271-100K 17 $0.09 $1.53

R4, R5, R7, R16,

R17, R18, R19, R20,

R21, R22, R23, R24,

R25, R30,

R33,R36,R38, R52,

R55, R76, R79, R87,

R88, R93, R94, R95,

R98, R99, R101,

R103, 104,R105,

R106, R111, R113,

R118, R122, R126,

R128

Resistor 10K Mouser 271-10K 39 $0.09 $3.51

R43 Resistor 150K Mouser 271-150K 1$0.09 $0.09

R3, R45, R47, R50,

R69, R71, R74, R116,

R117, R120 Resistor 1K Mouser 271-1.0K 10 $0.09 $0.90

R45,R69 Resistor 1K Tempco EFM 2 $5.00

R39 Resistor 1M Mouser 271-1.0M 1$0.09 $0.09

R2, R9, R10, R91,

R92, R96, R97, R108,

R109, R123, R124 Resistor 220 Mouser 271-220 9$0.09 $0.99

R64,65 Resistor 220K Mouser 271-220K 2 $0.09 $0.99

R42, R53, R54, R68,

R77, R78, R64, R65 Resistor 22K Mouser 271-22K 8$0.09 $0.72

R1, R27, R28, R32,

R34, R102, R112,

R114, R121, R127 Resistor 2.2K Mouser 271-2.2K 9$0.09 $0.81

R110, R119, R125 Resistor 33K Mouser 271-33K 4$0.09 $0.36

R6, R8 Resistor 3.3K Mouser 271-3.3K 2$0.09 $0.18

R59, R60, R83, R84 Resistor 470K Mouser 271-470K 4$0.09 $0.36

R26, R56, R57, R61,

R62, R80, R81, R85,

R86, R107 Resistor 47K Mouser 271-47K 9$0.09 $0.81

R11, R12, R13, R14,

R15, R31, R37, R49,

R51, R73, R75, R100 Resistor 4.7K Mouser 271-4.7K 12 $0.09 $1.08

R129, R130, R131, Resistor 62K Mouser 271-62K 4$0.09 $0.36

R132

Switches

S1 Switch - Mini Toggle on/off

SPST Mouser 10TC220 1$1.70 $1.70

S3, S4 Switch - Mini Toggle on/on

DPDT Mouser 10TC260 2$2.58 $5.16

S5, S6 Switch - Mini Toggle on/on

SPDT Mouser 10TC230 2$1.88 $3.76

S2 Switch 4X Dip 4X DIP RA Mouser 571-4358023 1$1.79 $1.79

Transistors

Q15, Q19, Q24, Q28,

Q29

Transistor - 2N3819 N Fet (J112)

Mouser 610-2N3819 5$0.55 $2.70

Q1, Q13, Q18, Q21,

Q22, Q27, Q31, Q32,

Q33, Q34 Transistor - 2N3906 GP NPN Mouser 625-2N3906 10 $0.10 $1.00

Q2, Q3, Q4, Q5, Q6,

Q7, Q8, Q9, Q10,

Q11, Q14, Q16, Q17,

Q2O, Q23, Q25, Q26,

Q30

Transistor - 2N3904 GP PNP Mouser 625-2N3904 18 $0.10 $1.80

Q12 Transistor - 2N5460 P Fet Mouser 610-2N5460 1$0.36 $0.36

Trimmers

T1, T2, T3, T4, T5,

T6, T7 Trimmer - Multiturn Cermet

50K Mouser 72-T93YA-50K 7$1.20 $8.40

Initial Assembly

If you want to install a power jack extra holes will need to be drilled in the

large power-pads. Drill a hole on each side of the current hole in the

direction of the jack terminals and use a sharp pointed x-acto knife to cut out

the space between the holes.

Color Value Multiplier Tolerance

Black 0 1 +/- 20

Brown 110 +/- 1

Red 2100 +/- 2

Orange 31,000 +/- 3

Yellow 410,000 +/- 4

Green 5100,000 -

Blue 61,000,000 -

Violet 710,000,000 -

Gray 8100,000,000 -

White 9-

Gold -0.1 +/- 5

Install all of the resistors except R45 and R69. Silver -0.01 +/- 10

No Color -+/- 20

Install all of the diodes. We'll get to the LEDs later. NOTE: that the

pad for the anode (the side without the stripe) of D4 does not go to

ground as it should. Do not use this pad, instead connect it to the lead

coming off the anode of D20 it does go to ground as it should.

Install IC sockets in all spaces marked for ICs. NOTE: DO NOT INSTALL THE ICS YET.

Install all Jumpers (15) except the one that’s next to R62 and the

jumper next to PAD-C2 and R85. These two jumpers will be installed

after the midi converter is working. They supply power to the analog

sections on the board. As long as these are dis-connected the VCOs,

filter, amps and egs will not work.

Install all of the capacitors.

Mono Cap Ceramic Cap Electrolytic Cap Polyester Cap

I have been using strips of 0.1 break-away pcb pin headers for all pads on

recent projects. This gives a convent place to solder to or connect your test

probe. The Mouser # for a 36 contact long tail pin strip header is.517-834-

03-36 $0.83ea. I urge you to use these instead of wiring directly to the

board. The tail is long enough so there is still room to solder even if the pin

is placed through the under side of the board.

Install the trimmers and DIP switch S2. You can use less expensive trimmers for T4,7

T1,2,3,5,6

T4 & T7

Install all transistors except Q29, and the Q13/Q14, Q16/Q17, Q22/Q23, Q25/Q26 pairs. NOTE: the pin-out on the pcboard for the N-Fets

is for 2N3819s. NOTE: If you substitute J112s the leads will have to be twisted to the proper pad.

2N3819 J112 2N5460

Install the 10MHz Crystal in the space marked for X1.

Install the voltage regulators U1, U2, U3 and U8 (+5V DAC reference).

LM7805 / LM7812 LM7912 LM336 5.0

Power Supply Test

Hook up a 12VAC@500mA wall transformer to large PAD-A and the large ground PAD

Before you plug it in be ready to up-plug it in case of smoke or heat.

Get your meter and set it to AC Volts.

Plug the transformer in. Nothing should smoke or be hot to the touch.

Measure the AC voltage on PAD-A and ground. It should be between 12 and 14VAC

Set your meter to DC Volts.

Attach the negative lead to ground and measure the voltage on pin-4 of the socket for U11. It should be about -12VDC .

Measure the voltage on pin-8 of the socket for U11. It should be about +12VDC .

Measure the voltage on pin-7 of the socket for U4. It should be about +5VDC .

Unplug the transformer.

Midi Interface Test and Setup

Install U4, U5, U6, U7, U9, U10, U11 NOTE: U5,U6 and U9 are static sensitive make sure you take the proper precautions and

handle these with care.

Connect a 5-pin DIN Jack (midi-in) to Pads E and F.

Connect a midi keyboard set to midi channel 1 to the midi-in jack.

Make sure all switches on S2 are off.

Plug the transformer in.

If you have a scope. Measure Pins 15 and 16 of U5. You should see the PIC clock running at about 10MHz.. Pin-3 of U9 is

multiplexed data ( looks like a changing staircase) when a midi key is played.

PIC U5 Pins 15 & 16 10MHz 4051 U9 Pin 3 (C3 midi-kbd) 4051 U9 Pin 6

4051 U9 Pin 8 4051 U9 Pin 9 4051 U9 Pin 10

With a digital probe or scope you should see a low going pulse on pin-6 of U4 when a midi key is played. If not power down and

reverse the wires going to the midi jack then try again. Your keyboard may or may not generate midi clock

6N138 U4 Pin 5 Midi Clock 6N138 U4 Pin 5 Midi Data

Set your meter to DC Volts.

Measure the voltage on pin-7 of U7. Adjust T1 until it's -10.56VDC.

Measure the voltage on the GATE and CV outputs when you play the keyboard.

PAD-I is Pitch-CV 1V/Oct .

PAD-L is Pitch-Bend and should be 0-5VDC as the PB lever is applied.

PAD-M is a 0-5VDC gate.

PAD-P is 0-5VDC as the MOD lever is applied.

PIN-8 of U10 is 0-5VDC glide-gate when two keys are played.

Unplug the transformer.

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