RYO PCB1 1.0 Manual

Roll your own aperture

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Ljunggren Audio

Roll Your Own

Aperture

Version: Aperture PCB1: 1.0, PCB2: 1.0 & 1.1

The only difference between PCB2 1.0 & 1.1 is a short missing trace in 1.0 that is very easy to

fix and is included in the assembly instrucions.

Bills Of Material

Type

Qty Value

Pow er header

Socket strip

Pin strip

Potentiometer

Jack

Toggle sw itch

LED 3mm

Diode

3.5mm resistor

7mm resistor

MLCC X7R

MLCC C0G

Electrolytic

Film cap

Trimmer

Transistor

Voltage reference

IC socket

Sw itch IC

IC socket

OpAmp

IC socket

OpAmp

Vactrol socket

Vactrol

Pow er cable

Mounting screw s

Frontplate

PCB1

PCB2

spacers

nuts

screw s

Knob

Parts

1 2x5pin

POWER

2 1x8pin

CON1-PCB1, CON2-PCB1

2 1x8pin

CON1-PCB2, CON2-PCB2

1 B22K

POT1

2 B100K

POT2, POT3

1 A100K

POT4

4 3.5mm

J1, J2, J3, J4

1 SPDT on-of f-on

SW1

1 SPDT on-on

SW2

1 orange

4 1N4148

D4, D5, D6, D7

2 1N5818

D1, D2

1 680K

R16

4 68K

R4, R5, R22, R34

5 47K

R14, R19, R21, R24, R30

1 4.7M

R28

5 330K

R17, R18, R31, R43, R45

3 12K

R13, R15, R25

1 0R

R20

5 10K

R3, R27, R29, R40, R44

R7, R8, R9, R10, R11, R12, R32, R33,

10 100K

R37, R38

1 100R

R23

2 10R

R1, R2

3 1K

R6, R26, R39

C1, C2, C5, C6, C7, C8, C9, C10, C11,

14 100nF

C12, C13, C14, C15, C16

1 33nF

C21

1 68nF

C19

4 10uF

C3, C4, C17, C18

1 2.2uF

C25

1 220nF

C20

1 470nF

C24

3 50K

VR1, VR2, VR3

3 BC547

Q1, Q2, Q3

1 LM4040 5V

1 DIP16

IC1

1 DG412DJ

IC1

1 DIP14

IC2

1 LM324

IC2

3 DIP8

IC3, IC4, IC5

3 TL072

IC3, IC4, IC5

4 SIP2

LDR1, LDR2

2 NSL-32 SR3

LDR1, LDR2

1 16pin-10pin

2 M3x6 black

1 2mm black

2 11mm

2 f or spacers

3 small cream

1 big red

Description

Euro pow er connector

9mm vertical mount

PJ301M-12 / Thonkiconn / Inline

General purpose.

Schottky rectifier. Pow er polarity protection. Alternatives: 1N5817,

1N5819, SB130.

1% Tolerance

Zero ohm/Jumper

1% Tolerance

1/4W

2.5-2.54mm pin pitch

2.5-2.54mm pin pitch TDK recommended

2mm pin pitch, 5mm dia, max 10mm height. Min 25V.

2mm pin pitch, 4-5mm dia, max 10mm height. Min 16V.

5mm pin pitch WIMA MKS2 recommended

16 pin DIP

16 pin

14 pin DIP

14 pin Alternative: TL064 Alternatives w ith higher current

consumption: TL074, TL084

8 pin DIP

8 pin

2 pin SIP

Advanced Photonix/Silonex

PCB material

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Summary of Contents for RYO PCB1 1.0

Page 1 Ljunggren Audio Roll Your Own Aperture Version: Aperture PCB1: 1.0, PCB2: 1.0 & 1.1 The only difference between PCB2 1.0 & 1.1 is a short missing trace in 1.0 that is very easy to fix and is included in the assembly instrucions. Bills Of Material Type Qty Value...
Page 2 Assembly instructions We start with PCB2. Empty PCB2 top & bottom.
Page 3 Step 1 Solder small (ca 3.5mm) resistors. Resistors are not sensitive to mounting direction. R16 680K R22, R34 68K...
Page 4 R30 47K R28 4.7M...
Page 5 R31 330K R25 12K...
Page 6 R27, R29, R40 10K R10, R32, R33, R37, R38 100K If you have PCB2 version 1.0 you need to save one of the resistor pins. Use it to solder a bridge/jumper across the two pins closest to the PCB edge on R37 and R38. The position is marked by arrows in the pictures.
Page 7 Step 2 Solder regular sized (ca 7mm) resistors. Resistors are not sensitive to mounting direction. R26, R39 1K Step 3 Solder ceramic capacitors. Ceramic capacitors are not sensitive to mounting direction. C7, C8, C11, C12, C13, C14, C15, C16 100nF The last ceramic capacitors will follow in a later step as they are taller.
Page 8 Step 4 Solder IC sockets. Match the IC sockets indent (marking pin 1 side) with the silk screens. IC3, IC4, IC5 8 pin DIP sockets. IC's will be mounted later. IC1 16 pin DIP socket. IC will be mounted later.
Page 9 Step 4 Solder vactrol/optocoupler sockets. Not sensitive to mounting direction. 2x LDR1, 2x LDR2 2 pin SIP socket. Optocouplers will be mounted later. Step 6 Solder ceramic capacitors. Ceramic capacitors are not sensitive to mounting direction. We use TDK brand in the kit and pre-assembled. C21 33nF...
Page 10 C19 68nF Step 7 Solder electrolytic capacitors. Electrolytic capacitors are sensitive to mounting direction. Put the long pin in the hole marked with a + (anode) on the silkscreen. The opposite side is marked with – (cathode) on the electrolytic capacitor. We use Panasonic brand in the kits and pre-assembled.
Page 11 Step 8 Solder polybox capacitors. Polybox capacitors are not sensitive to mounting direction. We use WIMA brand MKS2 model in the kit and pre-assembled. C20 220nF C24 470nF...
Page 12 Step 9 Insert the ICs in the sockets. IC1 DG412 IC3, IC4, IC5 TL072 Step 10 Insert the vactrols/optocouplers in the sockets. This is a fiddly step, be careful not to cut the pins too short, it's easier to cut them a little more if needed than to realise they are too short. Make sure the optocouplers dot match the dot/bevel marking in the silk screen.
Page 13 Step 11 Leave PCB2 on the side with CON1-PCB2 and CON2-PCB2 not soldered. Now it's time for PCB1. Empty PCB1 top & bottom.
Page 14 Step 12 Solder small signal diodes. Diodes are sensitive to mounting direction, make sure the stripe on the diode match the stripe on the silkscreen. D4, D5, D6, D7 1N4148 Step 13 Solder small (ca 3.5mm) resistors. Resistors are not sensitive to mounting direction. R4, R5 68K R14, R19, R21, R24 47K...
Page 15 R17, R18, R43, R45 330K R13, R15 12K The next resistor is zero ohm. Use a cut off pin from another component to form a jumper and it will do the exact same job as a zero ohm resistor. R20 zero ohm...
Page 16 R3, R44 10K R7, R8, R9, R11, R12 100K Step 14 Solder regular sized (ca 7mm) resistors. Resistors are not sensitive to mounting direction. R23 100R...
Page 17 R1, R2 10R R6 1K Step 15 Solder power polarity protection diodes. Diodes are sensitive to mounting direction, make sure the stripe on the diode match the stripe on the silkscreen. D1, D2 1N5818...
Page 18 Step 16 Solder ceramic capacitors. Ceramic capacitors are not sensitive to mounting direction. C1, C2, C5, C6, C9, C10 100nF Step 17 Solder IC sockets. Match the IC sockets indent (marking pin 1 side) with the silk screens. IC2 14 pin DIP socket. IC will be mounted later. Step 18 Solder electrolytic capacitors.
Page 19 C25 2.2µF Klang decay capacitor, increase to make a longer klang tail and vice versa. Step 19 Solder voltage reference diode. It looks like a transistor. Match the curved side with the silk screens. D3 LM4040 5V Step 20 Solder transistors. Match the curved side with the silk screens. Q1, Q2, Q3 BC547...
Page 20 Step 21 Turn PCB1 over and solder trimmers. Only 3 of the 5 holes are used for each trimmer, the extra 2 holes are for fitting trimmers with different appearence. Use low profile trimmers like 3362P to not bump into the vactrols when the boards are sandwiched. VR1, VR2, VR3 50K Step 22 Solder the power header.
Page 21 Step 23 Mount the spacers with the nuts on PCB1.
Page 22 Step 24 Put the pin & socket strips into each other. Place them between PCB1 and PCB2 in their respective places. Take a firm grip with a plier around the spacers and screw the screws into place like in the picture below. It's important that the grip is firm as there is a bit of friction in this step and we don't want the nuts to loosen.
Page 23 Step 25 Insert the IC in it's socket. IC2 LM324 Step 26 Cut off the small metal tab sticking out on the potentiometers. Use a cheap plier/nipper for this step, save your expensive ones for other tasks. Mount 1 washer and 1 nut on each potentiometer.
Page 24 Step 27 Place potentiometers, jacks, switches and LED in their positions but wait with soldering until the front panel is mounted. You will need to bend the ground pins a little bit on some of the jacks. The long pin of the LED goes into the hole with a square pad.
Page 25 Step 28 Place the front panel on top and add 1 washer and 1 nut to each potentiometer, jack and the switch. Use a socket wrench to avoid scratching of the frontplate. The switch have big pad holes to allow more different switches to fit but it also means you need to be extra careful to make sure the switch is aligned straight.
Page 26 Step 30 Mount the knobs. The big red knob will touch the front panel so you need to make sure there is a tiny gap under it. You can accomplish this with a bit of thick paper or envelope and cut out an opening for the potentiometer shaft.
Page 27 Finished module!

This manual is also suitable for:

Pcb2 1.0 Pcb2 1.1