Sound Skulptor EQ573 Assembly Manual Download

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Document revision 1.1 – Last modification : 01/05/14

EQ573 Assembly guide – IO board

23. Resistors

Add R1 to R16.
Control the resistor values with a digital multimeter. Bend the leads at 0.4” with a lead forming tool.

24. Ceramic capacitors

Add C1, C2, C7, C8, C10.

25. IC Sockets

Insert and solder the 8 pins sockets of UI and U2. Do not insert U1 at this time.

Warning

: Make sure to respect the socket direction, marked by a notch.

26. Electrolytic capacitors

Add C9, C11, C12, C15 to C18, C13, C14, C3 to C6.
Solder one lead first, adjust verticality then solder the second lead.

Warning

: The +lead must go into the +hole. Do not reverse (they may explode !)

27. Connector
Solder the connector CN4B. Solder one pin first, check verticality, then solder the other pins.

Warning

: the connector pins must be exactly perpendicular to the PCB to allow proper insertion into the

main board.

28. IC's

Insert U1 and U2 in their respective socket.

EQ573 Assembly guide – Final assembly

29. Front pannel assembly

Attach the 15mm female/female spacer to the front panel with
an M3x6 countersunk black screw.
Next, insert the switches into the front panel and attach the
switches board to the 15mm spacer with one M3x6 screw.

Summary of Contents for EQ573

Page 1: ... height from low to high profile in order to ease the soldering process The component you are soldering is always taller than the previously assembled ones and it is pressing nicely against the work area foam EQ573 Assembly guide Main board 1 Diodes Add D1 to D5 Use a lead forming tool to bend the leads at 0 4 Warning Make sure to respect the direction of the diodes which is marked by a ring on th...

Page 2: ...leads pointing down Warning The lead must go into the hole Do not reverse 7 Connector Solder the 2 x 8 pins header CN3A Solder one pin first check verticality then solder the other pins 8 SIL connector Solder the connector socket CN4A Solder one pin first check verticality then solder the other pins 9 Transistors Add Q1 to Q6 Warning Watch out the transistor direction Copyright 2011 to today Sound...

Page 3: ...ing The lead must go into the hole Do not reverse they may explode 12 Inductors It is necessary to leave a small gap between the inductors and the PCB surface in order to avoid any electrical contact between the metal parts and pads Fit a piece of double sided adhesive tape supplied with the kit on the inductor between the pins It is not necessary to remove the second protective layer from the tap...

Page 4: ...sand paper 16 Anti clic resistors Insert and solder 43 4M7 resistors The resistors are placed vertically 17 Rotary switches Add the 12 positions rotary switch SW4 Warning The position of the switches is critical for a good front plate matching and a smooth potentiometer rotation The switch rests on 3 small feet that must sit perfectly flat on the PCB Press the switch on the PCB and solder two oppo...

Page 5: ...he pins flush Warning The position of the header is very important to the final assembly Do not overheat when soldering because if the black plastic base melts the pins are no longer held in position EQ573 Assembly guide Potentiometers board 20 CN2 Connector Solder the 3 pins header in the 3 right holes circled in red on the picture The plastic tab is on the left Solder one pin first check positio...

Page 6: ... one lead first adjust verticality then solder the second lead Warning The lead must go into the hole Do not reverse they may explode 27 Connector Solder the connector CN4B Solder one pin first check verticality then solder the other pins Warning the connector pins must be exactly perpendicular to the PCB to allow proper insertion into the main board 28 IC s Insert U1 and U2 in their respective so...

Page 7: ... 5 pairs of pins near the centre of the header where a spacer will be installed 33 25mm Spacers Remove the front panel by unscrewing three M3x6 black screws Attach three 25mm spacers to the switches PCB on the solder side with three M3x6 screws 34 Potentiometer 6 4mm shaft adapters On the potentiometers PCB set all three pots fully clockwise Insert the three 6mm 4mm adapters all the way down with ...

Page 8: ...cap 38 10mm buttons Attach the 3mm shafts to the 10mm buttons and clip on the button caps Make sure the potentiometers are still set fully clockwise Insert the shafts into the centre holes while lining up the white line to the Max dots on the front panel Tighten the screws on the shaft adapters If the pots feel a little hard to turn blow a drop of contact cleaner inside the potentiometers 39 PCB t...

Page 9: ...d red You can add a drop of instant glue between connector and PCB to improve reliability And solder Repeat for the second PCB 2 Cable striping Split the 2 sections of the wire on a length of 3cm Strip 2cm of each section Merge the shield wires from the 2 sections and twist red in the middle Strip red and yellow wires on 4mm Tin the wire tips to keep them together with very little solder or they w...

Page 10: ...ing Insert the cable 3 wires from beneath the PCB into the 3 unplated holes red in centre yellow on the Y side Insert the red and yellow wire tips into the corresponding PCB holes and solder Cut the shield cable to the good length flatten it on the rectangular pad and solder Repeat for the other side of the cable Copyright 2011 to today SoundSkulptor ...

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