Oakley 5U Manual de usuario

Oakley Sound Systems

5U Oakley Modular Series

Analogue Synthesiser Voice

PCB set issue 1

Builder's Guide

V1 14

Tony Allgood

Oakley Sound Systems

CARLISLE

United Kingdom

The suggested panel design for the 5U wide MOTM format module.

The suggested panel design for the 4MU wide MU format module.

Introduction

This is the roject Builder's Guide for the issue 1 Analogue Synthesiser Voice (ASV) module from

Oakley Sound. This document contains a basic introduction to the board set, a full parts list for the

components needed to populate the boards and how to connect the boards together.

For the User Manual, which contains an overview of the operation of the unit and the calibration

procedure, please visit the main project webpage at:

http://www.oakleysound.com/asv.htm

For general information regarding where to get parts and suggested part numbers please see our

useful arts Guide at the project webpage or http://www.oakleysound.com/parts.pdf.

For general information on how to build our modules, including circuit board population, mounting

front panel components and making up board interconnects please see our generic Construction

Guide at the project webpage or http://www.oakleysound.com/construct.pdf.

The prototype ASV built onto a MOTM format panel with issue 1.1 main board issue 1 VCO board issue 1 socket

board and issue 1 pot/switch board. Other issue 1 PCBs will be similar.

The original issue 1 Pot/Switch board. Other issues are built in a similar way.

The ASV was the first Oakley module to use vertically mounted pots and switches. This type of construction allows

for much shallower modules.

arts Lists

For general information regarding where to get parts and suggested manufacturer part numbers

please see my useful arts Guide at the project webpage or http://www.oakleysound.com/parts.pdf.

The components are grouped into values, the order of the component names is of no particular

consequence.

A quick note on European part descriptions. R is shorthand for ohm. K is shorthand for kilo-ohm.

So 22R is 22 ohm, 1K5 is 1,500 ohms or 1.5 kilohms. For capacitors: 1uF = one microfarad =

1000nF = one thousand nanofarad.

To prevent loss of the small ‘.’ as the decimal point, a convention of inserting the unit in its place is

used. eg. 4R7 is a 4.7 ohm, 4K7 is a 4700 ohm resistor, 6n8 is a 6.8 nF capacitor.

ASV Main Board issue 1.1 arts List

Resistors

1% 0.25W metal film types are recommended for most values. R63, R64, R67 and R68 should be

high precision 0.1% or better.

R35 is a positive temperature coefficient resistor with a nominal value of 1K and temp. co. of

anywhere between +3000ppm/K and 3900ppm/K. Alternatively, it can be a standard 1K resistor if

you don't mind a small amount of temperature dependant drift in the centre frequency of the VCF.

lease note that some resistors are different depending on whether you a have an issue 1.1 or issue

1.2 ot Board, and if you are building your ASV in a MU or MOTM based format.

22R R79, R80

47R R109

220R R78, R74, R72, R160, R75

390R R25, R27, R31, R32, R85, R86

1K R149, R131, R139, R128, R141, R152, R130, R143, R142, R140, R159,

R153, R51, R129, R135, R137, R155, R136, R132, R146, R138, R144, R65

1K +3300ppm/K R35

2K2 R5, R16

4K7 R103, R125

6K8 R83, R88

10K R13, R126, R3, R10, R114, R113, R98, R28, R158

11K R161

12K R97, R15, R30, R33, R119, R50, R49

15K R59, R89, R127, R43, R44, R90, R107, R104, R29, R12

20K R105

22K R6, R9, R87, R8, R37, R36, R7

27K R24

30K R154, R157

33K R2, R20, R21, R52, R117

36K R96, R106, R118, R133, R148

39K R163, R147, R156, R134, R162, R164, R150, R145

47K R1, R34, R23, R53, R54, R55, R84

68K R45, R42

75K R94, R58

100K R17, R18, R70, R66, R61, R62, R102, R111, R4, R19, R73, R69, R56, R108,

R121, R76, R60, R165, R81, R57, R95, R11

100K/0.1% R63, R64, R67, R68

120K R112, R115, R116

150K R38, R82

220K R22, R151

240K R110

300K R123

470K R124

680K R26

910K R48, R39

1M R41, R46, R77, R120, R14, R71, R122

For MOTM/Oakley format

This is to be used if you have already have older Oakley VCOs and want your ASV VCOs to

behave identically to the Key CV input. Anyone with a midiDAC issue 4 and older should also

build this version.

150K R40, R47

For MU/Synthesisers com format

This is to be used if you have a predominantly MU system and/or have an issue 5 Oakley midiDAC.

220K R40, R47

For use with an issue 1 1 Pot Board

100K R91, R92, R100, R101

180K R93, R99

For use with an issue 1 2 Pot Board

22K R93, R99

47K R91, R101

Do not fit R92 and R100. Leave these two spaces empty.

Capacitors

100nF axial multi-layer ceramic C43, C23, C42, C19, C9, C66, C24, C27, C18, C28, C22, C40,

C53, C33, C1, C34, C59, C12, C52, C11, C69, C17, C38, C44,

C25, C14, C67, C2, C56, C46, C21, C30, C4, C50, C41, C39,

C49, C26, C54, C45, C48, C68

10pF C0G ceramic 2.5mm C13

33pF C0G ceramic 2.5mm C6, C29, C31

220pF C0G ceramic 2.5mm C36, C37, Cx*

470pF C0G ceramic 2.5mm C5, C8, C47, C55, C57

10nF polyester film C62

22nF polyester film C64, C65

39nF polyester film C61, C63

330nF polyester film C7

220nF polyester film C51

680nF polyester film C15

1uF, 63V electrolytic C60

2u2, 63V electrolytic C3, C10, C16, C20

10uF, 35V electrolytic C58

47uF, 25V electrolytic C32, C35

* Cx is only fitted to the underside of the board between pins 1 and 2 of U16 if you are using the

main board with an issue 1.1 ot Board. It is not needed with issue 1.2 ot Boards. See later for

details.

Trimmers

10K multiturn trimmer SCL1, SCL2

100K multiturn trimmer TUN1, TUN2

200K multiturn trimmer OCT1, OCT2

10K 6mm trimmer F_SCL

50K 6mm trimmer A_LVL

100K 6mm trimmer F_OFF1, F_OFF2, A_OFF, F_FREQ, LFO_RNG

Discrete Semiconductors

1N4148 silicon signal diode D1, D2, D3, D4, D5, D6, D7, D8, D11, D12, D13, D14, D16,

D17

BAT42 Schottky signal diode D15, D18

1N5819 Schottky power diode D9, D10

BC550 N N transistor Q3, Q7, Q8

BC560 N transistor Q1, Q2, Q4, Q9, Q10

J201 FET Q5, Q6

Integrated Circuits

CD4013 dual D-type flip-flop U26

CD4093 quad NAND gate U21

4558 dual op-amp U10

AS3310 envelope generator U24, U25

LM13700 dual OTA U8, U14, U15

LM4040-10 10V reference U2

LT1013 dual op-amp U3, U11, U19

O A2134 dual audio op-amp U12

TL072CN dual op-amp U22, U6, U16, U17, U13, U20

TL072AC dual op-amp U4, U18

78L12 100mA +12V regulator U1, U7

79L05 100mA -5V regulator U23

79L12 100mA -12V regulator U5, U9

Miscellaneous

Ferrite bead L1, L2, L3, L4

MTA100 3 way BUS

MTA100 2 way OUT

MTA100 6 way WR1, WR2

MTA156 4 way SU1, SU2

2 x 8 way 0.1” boxed header * HDR1, HDR2, HDR3

10-way SIL 0.1” socket ** CN1, CN2, CN3, CN4, CN5, CN6, CN7, CN8

10-way SIL 0.1” header OSC1, OSC2, OSC3

* If you have bought polarised headers for HDR1, HDR2 and HDR3, then they must be aligned

correctly. in 1 lines up with the square pad on the CB. in 1 is normally depicted by a small

triangle on the body of the header.

** CN1 to CN8 mounted on the underside of the board, facing down, and soldered from the top.

IC sockets are optional but recommended for DIY projects. There are thirteen 8-pin, two 14-pin and

five 16-pin DIL sockets used on the main board.

The two sets of transistor pairs Q3 and Q4 and Q9 and Q10 can be tied together with a cable tie to help keep

both devices at a similar temperature. This reduces the amount of drift in the filter's and LFO's operating

frequencies.

These boxed IDC headers are polarised as they have a notch taken out of the side to ensure an inserted socket is

fitted the correct way around. They are fitted to the topside on the main board and on the underside of the socket

board.

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