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Ljunggren Audio
Roll Your Own

Aperture

 

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

T

he 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

Parts

Description

Pow er header

1 2x5pin

POWER

Euro pow er connector

Socket strip

2 1x8pin

CON1-PCB1, CON2-PCB1

Pin strip

2 1x8pin

CON1-PCB2, CON2-PCB2

Potentiometer

1 B22K

POT1

9mm vertical mount

Potentiometer

2 B100K

POT2, POT3

9mm vertical mount

Potentiometer

1 A100K

POT4

9mm vertical mount

Jack

4 3.5mm

J1, J2, J3, J4

PJ301M-12 / Thonkiconn / Inline

Toggle sw itch

1 SPDT on-of f-on

SW1

Toggle sw itch

1 SPDT on-on

SW2

LED 3mm

1 orange

D8

Diode

4 1N4148

D4, D5, D6, D7

General purpose.

Diode

2 1N5818

D1, D2

3.5mm resistor

1 680K

R16

1% Tolerance

3.5mm resistor

4 68K

R4, R5, R22, R34

1% Tolerance

3.5mm resistor

5 47K

R14, R19, R21, R24, R30

1% Tolerance

3.5mm resistor

1 4.7M

R28

3.5mm resistor

5 330K

R17, R18, R31, R43, R45

1% Tolerance

3.5mm resistor

3 12K

R13, R15, R25

1% Tolerance

3.5mm resistor

1 0R

R20

Zero ohm/Jumper

3.5mm resistor

5 10K

R3, R27, R29, R40, R44

1% Tolerance

3.5mm resistor

10 100K

1% Tolerance

7mm resistor

1 100R

R23

1/4W

7mm resistor

2 10R

R1, R2

1/4W

7mm resistor

3 1K

R6, R26, R39

1/4W

MLCC X7R

14 100nF

2.5-2.54mm pin pitch

MLCC C0G

1 33nF

C21

2.5-2.54mm pin pitch TDK recommended

MLCC C0G

1 68nF

C19

2.5-2.54mm pin pitch TDK recommended

Electrolytic

4 10uF

C3, C4, C17, C18

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

Electrolytic

1 2.2uF

C25

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

Film cap

1 220nF

C20

5mm pin pitch WIMA MKS2 recommended

Film cap

1 470nF

C24

5mm pin pitch WIMA MKS2 recommended

Trimmer

3 50K

VR1, VR2, VR3

Transistor

3 BC547

Q1, Q2, Q3

Voltage reference

1 LM4040 5V

D3

IC socket

1 DIP16

IC1

16 pin DIP

Sw itch IC

1 DG412DJ

IC1

16 pin

IC socket

1 DIP14

IC2

14 pin DIP

OpAmp

1 LM324

IC2

IC socket

3 DIP8

IC3, IC4, IC5

8 pin DIP

OpAmp

3 TL072

IC3, IC4, IC5

8 pin

Vactrol socket

4 SIP2

LDR1, LDR2

2 pin SIP

Vactrol

2 NSL-32 SR3

LDR1, LDR2

Advanced Photonix/Silonex

Pow er cable

1 16pin-10pin

Mounting screw s

2 M3x6 black

Frontplate

1 2mm black

 PCB material

PCB1

1

PCB2

1

spacers

2 11mm

nuts

2 f or spacers

screw s

2 f or spacers

Knob

3 small cream

Knob

1 big red

Schottky rectifier. Pow er polarity protection. Alternatives: 1N5817, 
1N5819, SB130.

R7, R8, R9, R10, R11, R12, R32, R33, 
R37, R38

C1, C2, C5, C6, C7, C8, C9, C10, C11, 
C12, C13, C14, C15, C16

14 pin Alternative: TL064 Alternatives w ith higher current 
consumption: TL074, TL084

Содержание PCB1 1.0

Страница 1: ...ance 7mm resistor 1 100R R23 1 4W 7mm resistor 2 10R R1 R2 1 4W 7mm resistor 3 1K R6 R26 R39 1 4W MLCC X7R 14 100nF 2 5 2 54mm pin pitch MLCC C0G 1 33nF C21 2 5 2 54mm pin pitch TDK recommended MLCC C...

Страница 2: ...Assembly instructions We start with PCB2 Empty PCB2 top bottom...

Страница 3: ...Step 1 Solder small ca 3 5mm resistors Resistors are not sensitive to mounting direction R16 680K R22 R34 68K...

Страница 4: ...R30 47K R28 4 7M...

Страница 5: ...R31 330K R25 12K...

Страница 6: ...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 If you have PCB2 version 1 1 you can skip this it s unnecessary b...

Страница 7: ...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 cap...

Страница 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...

Страница 9: ...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 T...

Страница 10: ...apacitors 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...

Страница 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...

Страница 12: ...t 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 Be careful to bend them in the correct a...

Страница 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...

Страница 14: ...re 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 mounti...

Страница 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...

Страница 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...

Страница 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...

Страница 18: ...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 Electrolytic capacitors are sensitive to mounting direc...

Страница 19: ...ke 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 cu...

Страница 20: ...t 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 Make sure the key opening is oriented in t...

Страница 21: ...Step 23 Mount the spacers with the nuts on PCB1...

Страница 22: ...cture 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 If the nuts gets loose tighten them again Only one of the screws need t...

Страница 23: ...rs Use a cheap plier nipper for this step save your expensive ones for other tasks Mount 1 washer and 1 nut on each potentiometer Make sure the nuts are tight Sometimes we ship the kits with Alpha pot...

Страница 24: ...acks 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 i...

Страница 25: ...o make sure the switch is aligned straight The switches have their own nuts Make sure to keep them separate from the jacks nuts as they look very similar and the switch nuts will fit on the jacks but...

Страница 26: ...econance Q Turn the F A knob to fully closed counter clock wise Adjust the trimmer until sound no longer passes through 2 Trimmer VR2 Turn the F A knob to fully open clock wise Switch between VCA and...

Страница 27: ...Finished module...

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