09: Fix Or Replace Roomba; 10: Test Battery; 11: Test Power Supply - iRobot Roomba 570 Service Manual

09: Fix or Replace Roomba

Replace parts using Built-in-test Fix and module disassembly procedure.
Re-test the BiT and MT and continue fixing until 100% pass.

10: Test Battery

Fully charge the returned Battery.
Perform Battery test
o Battery Voltage should be between 15.5 - 18V.
o Battery Voltage drop should be less than 2V.
When battery PASSES, discharge battery with a Roomba run by pressing DOCK
and not having a home base present. The Roomba will run until the battery runs
low. The runtime should be at least 60 minutes. If not, replace the battery. (Note :
Battery can be discharged at a constant 2.2A until the battery is at 12V. Measure
time to discharge.)

11: Test Power Supply

Test returned Power Supply
o Shake the unit and make sure there are no loose parts
o Connect to wall and ensure DC output is between 21.1-24.0 VDC
o Solid green light under load
o Measure idle current with AC RMS ammeter to be <18mA
o Measure standby power is <0.5W
[Note: If the power supply light is off or blinking while charging, replace it and
make sure the Home Base and Roomba pass all charging tests.]
See "Service
Procedure
Chapter"
Appendix D
Appendix A/B
Appendix F
Appendix G
8