LRB-303 Build Guide

Files:

You need:

2 x LRB303 TONE KNOBs (3 per file), 6 total
5x Key Button (5pcs per file), 25 Total
1x Tap Button (3pcs per file), 3 Total, Need 2
1x Mode Knob (3pcs per file) 3 Total, Need 2
1x Tempo Knob (3pcs per file) 3 Total, Need 2

Rub-on Instructions:

Step 1:

Trim bottom paper of rub-on so neither side goes to the edge. Prepare your case by washing the surface where it will be applied to, Test whatever you use on the inside of the case for painted ones to make sure it doesn't attack the paint. Dont use harsh solvents.

Step 2:

Add Tape to each end. Use tape that leaves no residue.

Step 3:

Apply to case without taping down, pull out the bottom paper so only the top is exposed and you can pull the paper out the bottom. This is to protect the bottom graphics until you're ready to apply them.

Step 4:

Align the rub-on using two features: TUNE and ACCENT. Just line up the tick marks to the hole in the case for both these features and everything else will line up correctly. I recommend lining one side up first, taping that side down and then the other end. The bottom paper will prevent the graphics touch the panel so you can reposition as you need. When you are happy with alignment, use the provided tool (pointy wood thing) and gently rub each feature until it transfers. Use as little force as possible, its a motion like you are drawing on top of each feature with a pencil. I recommend starting with features nearest the edge. Once the top is done, pull the bottom paper out and finish bottom features.

Step 5:

Once everything is rubbed on, lift the tape on one side only and lift the transfer paper up slowly to make sure everything transferred. If you missed anything, simply tape down the lifted end, it should line up easily since one end is still taped down.

Bill of Materials:

Bag 1
2x B50K (B503)
2x A50K (A503)
1x B50K Dual (B503)
1x 1MA (A105)
2x Brackets
1x A50K
1x C1M
1x 3P4T Switch
1x 1P7T Switch

Bag 2
3x Phone Jacks
2x 3.5mm Jacks
1x Slide Switch
1x Positive Bat Terminal
1x Negative Battery Terminal
1x DC jack
1x Switched DIN Socket
3x Standoffs
3x Tie Wraps
1x Rub-on Tool

Bag 3
25x Tact Switch
25x 4x6mm Standoff
25x3mm LED
2x70mm 4 Pin Ribbon
2x70mm 8 Pin Ribbon
6x Hook up Wires
4x Dust Covers
5x Short Case Screws
6x Long Case Screws
1x Tiny Screw

Bag 4
1x Coil
1x KSD1616 (Q43)
1x KSA916 (Q44)
1x BA662 Clown
1x Headphone Amp (IC14)
1x TIP30 (Q45)
1x OS-303 CPU
1x MIDI board with Cable

Cable Legend:

Connection	Color	Length
GND	Blk	135
RUN	brown	175
TAP	Purple	210
R/S	Orange	135

Battery+	RED	475
Battery -	Blk	240

Assembly Instructions:

General Assembly tips:

Do NOT solder pot tabs until you have had a chance to fit the completed boards into the case. Much easier to make adjustments BEFORE those are soldered down

Switchboard

Step 1:

Trim rails from board. They break off with pliers easily

Step 2:

Trim ribbon leads to around half length. The leads get wider at the bottom so snipping those off eases installation

Step 3:

Solder ribbon to board. This step can be done later if you wish, I prefer to do it before soldering LEDs/Switches

Step 4:

Fit LEDs into standoffs. This can be done either way, standoff holes on top will raise the LEDs a bit. Your choice, just make sure they are all the same way. There is an extra LED and standoff in the kit

Step 5:

Fit all parts on to switch board. LEDs are fit with long leg (Anode) -> triangle on the footprint.

Make sure all switches are pushed all the way down and flush with the board.

Solder everything down. I recommend using the panel as jig so all the LEDs line up with the holes and get soldered in straight. I use a couple of pieces of tape to keep the panel fixed to the switch board

Switchboard Complete!