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4-15
91390 QUBE
M AINTENANCE
1 After you install the new CPU PCBA into the chassis, reassemble
the monitor as described in Assembly/Disassembly Procedures
on page 4-7.
2 Connect the power supply to the 91390 monitor.
3 To format the USB drive, power-ON the monitor (cold-boot).
4 To enter extended diagnostics, touch the lower corners of the
touchscreen in sequence during the 4-3-2-1 countdown. Touch
the corners of the visible part of the lighted electronic display
(LED), not the corners of the bezel (refer to Figure 4-8 on page 4-
15). If you use a mouse, click both the right and left mouse buttons
simultaneously during the countdown. The Main Diagnostics
Menu is shown in Figure 4-9.
Figure 4-8 Touch Points to Enter Extended Diagnostics on Options A
and B (left) and Option C (right)
5 Touch or click the f - format USB file system key.
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