Welcome to Synthrotek PT2399 Dev Assembly Instructions! This step-by-step guide will take you through the whole circuit-building process. Check out the Mods section below to find some different ways to power your circuit.

Component Layout

The first step in any successful DIY electronics project is to make sure that you have all of the parts and know their reference ID for proper board placement. Check the contents of your kit against the BOM before you begin. If you’re missing anything, send us an email and we’ll get it out to you ASAP.

Got all of your components?  It’s time to start building.

Assembly

The first part of our build will be for components that are soldered directly to the circuit board.  This makes the build process easier than having to deal with wires and floating potentiometers getting in our way while we solder sensitive components.

IC Sockets/Resistors

Insert the resistors into their respective PCB positions and solder them to the board. Use the BOM to identify resistor placement. Don’t worry too much about damaging resistors with your soldering iron; resistors are not fragile components.

Insert the IC Socket into the PCB at the points according to the image on the top layer. The Sockets have a half-circle notch that identifies pin placement. See the picture if you are unsure.

Capacitors

There are two different types of capacitors in this circuit. Electrolytic capacitors (C2, C3, C9, C13, and C14) are polar components and their pcb placement matters. The shorter lead and the band on the body identifies the negative lead, which will be inserted into the circle through-hole. The positive lead will be longer and should be inserted into the square through-hole.

Polarity is not an issue with the remaining ceramic capacitors. Just be sure the component values are identified before soldering them; some of them look very similiar and the codes printed on their bodies are the only way to identify them.

Note: (C15, C17) could be either electrolytic or ceramic capacitors.

Transistor

Solder the transistor for U2 as shown in the picture. Align the flat side with markings on the board.

Potentiometers

Insert the pots directly on the board facing away from the circuit. R2=B20k, R10=B50k

Power Supply

Insert the red wire of the 9V Battery jack into the through-hole marked ‘Vcc’ and the black wire into the through-hole marked ‘GND’.  Solder the wires to the PCB.

Use this picture for wiring a center positive power supply. The red and black wires are the battery jack connections.

Use this picture for wiring a center negative power supply. The red and black wires are the battery jack connections.

Input/Output Jacks

We use two 1/8″ jacks for the input and output. GND = Sleeve IN/OUT = Tip

Check the picture if you are unsure.

Insert your IC and your all done! Bend the leads in gently and align the half-circle notch with the notch on the socket.

Congrats!