Post History
I've got a broken roomba, I've tried new batteries and a working charger. The charger is supposed to output 20V-24W when the roomba is plugged in. the picture just shows how I'm measuring the pow...
#11: Post edited
by
dustytrash
·
2020-12-10T20:24:26Z (almost 4 years ago)
- I've got a broken roomba, I've tried new batteries and a working charger.
The charger is supposed to output 20V-24W when the roomba is plugged in. However it's only showing 1.6W.- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24W when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- **There is no issue with the charger or the battery. Both have tested in a working roomba**
- The roomba (model 690) uses a 14.4V Lithium Battery
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24W when the roomba is plugged in.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24W when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- **There is no issue with the charger or the battery. Both have tested in a working roomba**
- The roomba (model 690) uses a 14.4V Lithium Battery
#10: Post edited
by
dustytrash
·
2020-12-10T20:19:52Z (almost 4 years ago)
added additional note about the type of battery
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24W when the roomba is plugged in. However it's only showing 1.6W.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24W when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
**There is no issue with the charger or the battery. Both have tested in a working roomba**
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24W when the roomba is plugged in. However it's only showing 1.6W.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24W when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- **There is no issue with the charger or the battery. Both have tested in a working roomba**
- The roomba (model 690) uses a 14.4V Lithium Battery
#9: Question closed
by
Nick Alexeev
·
2020-12-10T19:21:51Z (almost 4 years ago)
#8: Post edited
by
dustytrash
·
2020-12-10T19:08:00Z (almost 4 years ago)
clarified Watts not Volts, clarified charger is working
- I've got a broken roomba, I've tried new batteries and a working charger.
The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.*the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24 when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
**The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24W when the roomba is plugged in. However it's only showing 1.6W.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24W when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- **There is no issue with the charger or the battery. Both have tested in a working roomba**
#7: Post edited
by
dustytrash
·
2020-12-10T19:05:45Z (almost 4 years ago)
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24 when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
()- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24 when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
#6: Post edited
by
dustytrash
·
2020-12-10T19:05:25Z (almost 4 years ago)
clarified power meter reading and image
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
*the picture just shows how I'm measuring the voltage. It's 0.4 when roomba is disconnected, **1.6V** when connected.*- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture just shows how I'm measuring the power taken from the charger. I bought a Power Meter for this purpose. A functional roomba shows between 20-24 when the battery is charging, but mine shows between 0.8W-1.6W when the problem roomba is supposed to be charging.*
- ()
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
#5: Post edited
by
dustytrash
·
2020-12-10T15:17:40Z (almost 4 years ago)
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture just shows how I'm measuring the voltage. It's 0.4 when roomba is disconnected, **1.6V** when connected.*
- 
My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture just shows how I'm measuring the voltage. It's 0.4 when roomba is disconnected, **1.6V** when connected.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me **I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.** There is detected connection from Negative -> Negative.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- **The Roomba was working at one time. I only know this based on the amount of dirt inside the roomba.**
#4: Post edited
by
dustytrash
·
2020-12-10T15:14:07Z (almost 4 years ago)
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
*the picture shows 0.4 when the roomba is disconnected, but it gives **1.6V** when connected.*- 
I've done some [continuity tests on the PCB -> charger](https://imgur.com/a/0QXx9Ss) which show no connection from positive to positive, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture just shows how I'm measuring the voltage. It's 0.4 when roomba is disconnected, **1.6V** when connected.*
- 
- My multi meter shows no connection from positive to positive pcb -> charger connector, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.
- *Continuity tests on the PCB -> charger*
- 
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
#3: Post edited
by
dustytrash
·
2020-12-10T15:06:02Z (almost 4 years ago)
moved images from imagur to post
- I've got a broken roomba, I've tried new batteries and a working charger.
The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.*the picture shows 0.4 when the roomba is disconnected, but it gives **1.6V** when connected.*- I've done some [continuity tests on the PCB -> charger](https://imgur.com/a/0QXx9Ss) which show no connection from positive to positive, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.
[PCB side 1](https://imgur.com/a/OME5jsD)[PCB side 2](https://imgur.com/a/InAZIdo)- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- *the picture shows 0.4 when the roomba is disconnected, but it gives **1.6V** when connected.*
- 
- I've done some [continuity tests on the PCB -> charger](https://imgur.com/a/0QXx9Ss) which show no connection from positive to positive, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.
- *PCB Side 1*
- 
- *PCB Side 2*
- 
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
#2: Post edited
by
dustytrash
·
2020-12-10T15:03:25Z (almost 4 years ago)
moved image from imagur to attached to the post
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
[Here's an image](https://imgur.com/a/qnT8RyE) of how I got a reading of 1.6V, the picture shows 0.4 when the roomba is disconnected, but it gives 1.6V when connected.- I've done some [continuity tests on the PCB -> charger](https://imgur.com/a/0QXx9Ss) which show no connection from positive to positive, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.
- [PCB side 1](https://imgur.com/a/OME5jsD)
- [PCB side 2](https://imgur.com/a/InAZIdo)
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
- I've got a broken roomba, I've tried new batteries and a working charger.
- The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V.
- 
- *the picture shows 0.4 when the roomba is disconnected, but it gives **1.6V** when connected.*
- I've done some [continuity tests on the PCB -> charger](https://imgur.com/a/0QXx9Ss) which show no connection from positive to positive, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this.
- [PCB side 1](https://imgur.com/a/OME5jsD)
- [PCB side 2](https://imgur.com/a/InAZIdo)
- **Additional info:**
- For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger.
- The charger has 2 metal plates that attach to the roomba's 2 metal plates.
#1: Initial revision
by
dustytrash
·
2020-12-10T14:35:21Z (almost 4 years ago)
How can I debug, (and eventually fix) this Roomba PCB?
I've got a broken roomba, I've tried new batteries and a working charger. The charger is supposed to output 20V-24V when the roomba is plugged in. However it's only showing 1.6V. [Here's an image](https://imgur.com/a/qnT8RyE) of how I got a reading of 1.6V, the picture shows 0.4 when the roomba is disconnected, but it gives 1.6V when connected. I've done some [continuity tests on the PCB -> charger](https://imgur.com/a/0QXx9Ss) which show no connection from positive to positive, but someone told me I could be seeing strange readings due to the Charging Mosfets. So now I'm stumped on how to continue debugging this. [PCB side 1](https://imgur.com/a/OME5jsD) [PCB side 2](https://imgur.com/a/InAZIdo) **Additional info:** For testing I've disconnected everything except the Battery -> PCB and connector for PCB -> Charger. The charger has 2 metal plates that attach to the roomba's 2 metal plates.