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5-20
91390
QUBE
TROUBLESHOOTING
If you cannot access the Boot Menu from Terminal Emulation, the
boot sector of the Flash ROM in the CPU could be corrupted.
Replace the CPU PCBA. If you can access the Boot Menu through
Terminal Emulation, the boot sector of the Flash ROM in the CPU is
functional. To determine the cause of the fault, do the following
steps:
1 To see if any power-on tests fail, watch the startup sequence.
Troubleshoot accordingly.
2 Choose s- Show system info from the Main Diagnostic Menu.
Check that all system voltages are present. Refer to Figure 5-6
on page 5-8.
Figure 5-15 Extended Diagnostics: System Voltages
If these voltages are out of tolerance, replace the CPU PCBA:
Description Notes
Firmware version: v2.0
Battery A installed Status messages
Battery B installed Status messages
Battery B has charging inhibited Status messages Ex
Battery A capacity at 47% Status messages
Battery B capacity at 100% Status messages
Vin Checked on AC only. 18.0 to 22.0 V
Vcom 18.0 to 22.0 V on AC; shutdown @ <16 V or >24 V 9.0 to 12.6 V on battery
V18V Checked on AC only 18.0 to 22.0 V
V12V +/- 5% (11.4 to 12.6 V); Shutdown @ +/- 20% (<9.6V or >14.4 V)
V5V +/- 6% (4.7 to 5.3 V) Firmware shutdown @ +/- 10% (<4.5 V or >5.5 V)
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