Chapter 13: Roomba Discovery Motherboard Connections

Chapters Menu

Chapter 1: What Is Roomba Discovery Series Saying To Me? Chapter 2: How to Open/Replace Frame Roomba Discovery Chapter 3: How to Replace Roomba Discover Series Main Brush Casing Chapter 4: How to Replace Roomba Discovery Main Brush Motor Chapter 5: How to Replace Roomba Discovery Motherboard Chapter 6: How to Replace Roomba Discovery Speaker Chapter 7: How to Replace Roomba Discovery Side Brush Motor Chapter 8: How to Replace Roomba Discovery Side Brush Gear Assembly Chapter 9: How to Replace Roomba Discovery Front Caster Wheel Chapter 10: How to Replace Roomba Discovery Caster Wheel Drop Switch Chapter 11: How to Replace Roomba Discovery Drive Wheel Chapter 12: How to Replace Roomba Discovery Cliff Sensors Chapter 13: Roomba Discovery Motherboard Connections   This chapter shows the motherboard and all its connections for the Roomba Discovery 4XXX/4XX series, pictured below. Please refer to this document when carrying out any repair or service of your Roomba. It will be helpful if you have disconnected connections to the motherboard and are uncertain where they all go. Top of Motherboard

1 - Speaker and left wheel drop switch: 4 wires, white, grey, and 2 purple. 2 - Main brush motor: 2 wires, black and red. 3 - Left drive wheel: 6 wires, yellow, red, blue, brown, grey and black. 4 - Dirt detectors: One dirt detector: 4 wires, black, white, yellow and red

• Two dirt detectors: 8 wires: black, white, yellow and red twice.

5 - Cover: 16 wires, 2 red, 14 grey. 6 - Right drive wheel: 6 wires, red, orange, blue, brown, grey and black. 7 - Bin: 2 wires, black and red. 8 -  Side brush motor: 2 wires, black and green. 9 - Right wheel drop switch: 2 wires, black and yellow. 10 - Charging socket: 2 wires, black and red. Right Side of Motherboard

1 - IR Sensor on Bumper : 4 wires, brown, red, white and blue 2a - Caster wheel switches (non-swivel caster wheel): 4 wires, 2 green and 2 purple 2b - Caster wheel switches (swivel caster wheel): 5 wires, 2 green, 1 red, 1 black, and 1 white 3 - Battery : 3 wires, red, white, black 4 - Right Cliff Sensors : 6 wires, orange, red, black, yellow, black and green 5 - Front Charging Contacts : 2 wires, red and black. Left Side of Motherboard

1 - IR Sensor on Bumper : 3 wires, red, blue and black 2 - Left Cliff Sensors : 6 wires, orange, red, black, yellow, black and green