Troubleshooting - Tekkeon MP3750 User Manual

Troubleshooting

If myPower ALL Plus does not power the portable device or charge the device battery, take these steps:
1. Verify that the Power Output Cable is connected to the MP3750. Please note that with some laptop
models, the laptop may shut down if the laptop is connected to MP3750 with the Power/Mode switch in
the ON position. Remove and replace the laptop battery to reset the laptop charging circuitry, and connect
MP3750 again, with the power switch in the OFF position. Slide the power switch to ON after the laptop is
connected.
2. Verify that the current consumption of the portable device is not more than 4.5 Amp.
If the device consumes more than the maximum provided by myPower ALL Plus,
the device will shut down when turned on and cannot be powered and/or charged by
myPower ALL Plus.
3. Verify that the device does not require more than 19V or 90W.
4. Verify that the laptop power adapter does not provide more than 5A. The output
voltage can be found on the power adapter label.
5. View the remaining battery capacity. If it is below 25%, recharge myPower ALL Plus.
6. Check that the output cord is connected to both myPower ALL Plus and the portable
device, and that the adapter plug fits snugly into the power jack on your portable device.
If not, try another adapter.
7. Verify that the polarity of the device power jack is Center Positive. If the polarity is Center Negative,
please contact support@tekkeon.com for assistance.
8. Verify that a battery is installed in the portable device as some devices will not function without a
battery installed.
USER GUIDE
Center Positive
Symbol
Center Negative
Symbol
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