iRobot Roomba 570 Service Manual - Page 8

Fix or Replace Roomba, Test Battery, Test Power Supply - parts

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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. See "Service Procedure Chapter" Appendix D Appendix A/B Appendix F 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

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8
09: Fix or Replace Roomba
Replace parts using Built-in-test Fix and module disassembly procedure.
See “Service
Procedure
Chapter”
Appendix D
Re-test the BiT and MT and continue fixing until 100% pass.
Appendix A/B
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.
Appendix F
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
Appendix G
[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.]