Delptronics LDB-1 Analog Drum Machine - Manual (Page 4)

LDB-1 Kit Instructions Page 4 of 8
Power Switch
The power switch can only be inserted one way. The switch actuator faces away from the PCB. Make sure it is
seated flush against the PCB before soldering it. The switch will not stay in place by itself, so you may want to tape it
in place while you solder it. Another tip is to solder only one of the pins, then check to make sure it is flush. If it is not
flush, it is simple to reheat the one solder joint while pressing the switch into place. Once one pin is secure, the
switch will stay in place while you solder the other pins.
Power Jack
The type M power jack can only be inserted one way. The opening of the jack faces away from the PCB. It will stay
in place fairly well once inserted, however care must still be taken to ensure that it is seated flush against the PCB.
1/8 inch Jacks
The four 1/8" jacks can only be inserted one way. The openings of the jacks face away from the PCB. Make sure
they are seated flush against the PCB before soldering it. They snap into place and will stay put once inserted.
MIDI / DINsync Jack
The MIDI jack can only be inserted one way. The opening of the jack faces away from the PCB. Make sure it is
seated flush against the PCB before soldering it. This jack will not stay in place by itself, so you may want to tape it in
place while you solder it. Another tip is to solder only one of the pins, then check to make sure it is flush. If it is not
flush, it is simple to reheat the one solder joint while pressing the jack into place. Once one pin is secure, the jack will
stay in place while you solder the other pins.
Battery Holder (±)
The battery holder wires are first threaded down through the hole next to the battery pads, arched over, then soldered
in place on top of the board. This keeps the battery wires from getting accidentally pulled out of the PCB. The black
wire goes in the hole with the square pad, and the red wire goes in the hole with the round pad.
After you have soldered the leads, gently pull the wires back through the hole so that they lie flat against the bottom
of the PCB. That way, they won’t interfere with the overlay. Refer to the photo of the completed kit for reference.