Main Brush and Vacuum Current FAIL

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Main Brush and Vacuum Current FAIL

Postby Jefflund » January 22nd, 2019, 7:12 pm

Hey All,

So I know there is damage to the motherboard of this 655, and I am trying to narrow what components I need to check. When I run the DIT I get the following 2 failures

SUMMARY: (main-brush-current-ok?) FAIL mA -5 min -500 max -200 mV 16643 degrees-C 33
SUMMARY: (vacuum-current-ok?) FAIL mA 8 min -350 max -150 mV 16643 degrees-C 33

What should these values be, does anyone have a working Roomba's numbers for these 2 values?

I was working through the tests detailed in this awesome thread:
http://www.robotreviews.com/chat/viewtopic.php?f=1&t=19065&p=135674#p135674
I know for a fact that the 470 resistor @R147 fell off (Have a new one coming to solder back on).

Which parts of the mainboard do I need to test for the vacuum failure?

Thanks everyone for the information, I know this Roomba is probably not worth fixing, but I am on a mission from GOD! lol :geek:

Image

Full Testing text:
SUMMARY: START
SUMMARY: DATE-TAG 2014-03-21-1143-L
SUMMARY: BOOTLOADER-ID 470A 6265 6E63 DFFF
SUMMARY: BOARD-ASSEMBLY 3.5-lite-batt
SUMMARY: BOARD-REVISION 2
SUMMARY: FACTORY-TEST INCOMPLETE
SUMMARY: flash version: 10
SUMMARY: flash info crc passed: 1
SUMMARY: LANGUAGE(S): english (0)
SUMMARY: cliff calibration: L 10 FL 100 FR 120 R 80
SUMMARY: (user-button-day?) FAIL
SUMMARY: (user-button-hour?) untested
SUMMARY: (user-button-minute?) untested
SUMMARY: (user-button-schedule?) untested
SUMMARY: (user-button-clock?) untested
SUMMARY: (and (not (bump-left?)) (not (bump-right?))) PASS
SUMMARY: (and (bump-left?) (not (bump-right?))) PASS
SUMMARY: (and (bump-right?) (not (bump-left?))) PASS
SUMMARY: (cliff-left?) FAIL
SUMMARY: (cliff-right?) untested
SUMMARY: (cliff-front-left?) FAIL
SUMMARY: (cliff-front-right?) untested
SUMMARY: (and (lt-bumper-left?) (not (bump?))) FAIL
SUMMARY: (and (lt-bumper-right?) (not (bump?))) untested
SUMMARY: (and (lt-bumper-front-left?) (not (bump?))) FAIL
SUMMARY: (and (lt-bumper-front-right?) (not (bump?))) untested
SUMMARY: (and (lt-bumper-center-left?) (not (bump?))) FAIL
SUMMARY: (and (lt-bumper-center-right?) (not (bump?))) untested
SUMMARY: (wheel-drop-left?) PASS
SUMMARY: (wheel-drop-right?) PASS
SUMMARY: (rcon?) FAIL
SUMMARY: (valid-code-in-channel? dir-left) FAIL
SUMMARY: (valid-code-in-channel? dir-right) untested
SUMMARY: (battery-voltage-ok?) PASS
SUMMARY: (battery-temperature-ok?) PASS
SUMMARY: (baseline-current-ok?) PASS mA -206 min -270 max -200 mV 16643 de grees-C 33
SUMMARY: (left-wheel-stall?) PASS
SUMMARY: (drive-speed-ok? left forward) PASS
SUMMARY: (drive-speed-ok? right stopped) PASS
SUMMARY: (left-drive-current-ok?) PASS mA -133 min -150 max -75 mV 16643 d egrees-C 33
SUMMARY: (left-drive-stall-current-ok?) untested
SUMMARY: (right-wheel-stall?) PASS
SUMMARY: (drive-speed-ok? right forward) PASS
SUMMARY: (drive-speed-ok? left stopped) PASS
SUMMARY: (right-drive-current-ok?) PASS mA -117 min -150 max -75 mV 16643 degrees-C 33
SUMMARY: (right-drive-stall-current-ok?) untested
SUMMARY: (drive-speed-ok? left reverse) PASS
SUMMARY: (drive-speed-ok? right reverse) PASS
SUMMARY: (stasis-strong-signal?) FAIL
SUMMARY: (main-brush-motor-stall?) PASS
SUMMARY: (main-brush-current-ok?) FAIL mA -5 min -500 max -200 mV 16643 de grees-C 33
SUMMARY: (main-brush-stall-current-ok?) untested
SUMMARY: (debris-right?) FAIL
SUMMARY: (vacuum-current-ok?) FAIL mA 8 min -350 max -150 mV 16643 degrees -C 33
SUMMARY: (side-brush-motor-stall?) PASS
SUMMARY: (side-brush-current-ok?) PASS mA -59 min -120 max -30 mV 16615 de grees-C 33
SUMMARY: (side-brush-stall-current-ok?) untested
SUMMARY: (internal-charger-available?) disabled
SUMMARY: (int-charging-recovery-current-ok?) disabled
SUMMARY: (int-charging-current-ok?) disabled
SUMMARY: (int-charging-trickle-current-ok?) disabled
SUMMARY: (and (ext-charger-available?) (not (robot-has-internal-charging?))) PAS S
SUMMARY: (charging-watchdog-current-ok?) untested
SUMMARY: (ext-charging-recovery-current-ok?) untested
SUMMARY: (ext-charging-current-ok?) untested
SUMMARY: (ext-charging-trickle-current-ok?) untested
SUMMARY: (bootloader-ok?) PASS
SUMMARY: (not (check-board-revision invalid)) PASS
SUMMARY: (not (check-board-assembly invalid)) PASS
SUMMARY: (bbox-test-write-succeeded?) PASS
SUMMARY: (rf-system-functioning?) disabled
SUMMARY: fs-header-crc-passed? PASS
SUMMARY: (/= enabled-languages 0) PASS
SUMMARY: (calibration-data-stored?) PASS
SUMMARY: (factory-test-data-saved?) PASS
SUMMARY: END
Jefflund
 
Posts: 9
Joined: January 19th, 2019, 7:05 pm

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