Installing Pedal Mods Boss SD-01 Mod Kit

Thank you for purchasing the SD-1 Supreme Mod Kit. After these mods you will not believe it’s even the same Pedal. Included are all the components necessary for total tone transformation, it replaces most every component in the signal path and turns the SD-1 into a serious tone machine.

There is a new LED to replace the red one, it will not change the tone of the pedal, just change the color of the light. The longer lead goes to the red wire.

CAUTION: Read all these instructions before beginning, if you pedal is currently under warranty it will not be after these mods. This kit and the instructions do not include any warranty of any kind and you agree to hold harmless the seller of this kit against any and all claims.

Open up the back and take a look inside. There are two circuit boards. The main board in the picture, , and a tiny board that only houses the LED. We will need to get to both boards but there is no need to remove the knobs or the input or output jacks.

See the pic for which components to change.

NEVER heat the solder and try to pull the component out you WILL damage the PCB. Use solder wick to completely remove the solder and the component will come free easily.

For the Diodes the arrow on the board points to the side that the band is closest to. Some of the mods require two diodes in series where there was only one before. See the photo for how to wire this up. If your mod has 1n34 + 4007 it will be soldered like this —-1n34>—4007>.

There is usually a dot next to pin one of any op-amp and there is also a notch indicating direction.

You will need to add the 47pf cap in parallel with the diode as shown below. To put together two diodes such as 1n34+4007 follow the pic.. For mods with an LED in the clip- ping section use the LED that was the indicator for the pedal, the side of the LED that was closet to the red wire is equivalent to the indicator band on the diodes.