October 2012
6-31
ColorQube 8570/8870 Service Manual
Electrical Troubleshooting
General Troubleshooting
Xerox Internal Use Only - Revised, 3rd Revision
Figure 8 Fuses Location on the Power Control Board
Fuse F501 Failure
F501 Fuse could be blown from the short of the Ground Plane to a +3.3V on the I/O Board. A
machine with a blown F501 Fuse will appear non-functional. Perform the following procedures
to determine if F501 Fuse is blown.
NOTE: Other components that carry +3.3V are the Ink Loader, Control Panel, Paper Path
Motor Encoder, and the Lower Tray.
Make sure to find the short before replacing the Power Control Board.
1.
Turn On the power switch.
2.
The Electronics Module Fan should come On and stay On.
3.
The Control Panel will be blank and remain blank.
4.
The PE and PS lights on the side of the printer (
Figure 4
) will be blinking together. The
blinking sequence is fluttering blinks: 2 blinks - space - 2 blinks - space - 6 blinks --- blink
code 226.
5.
The power switch when turned Off will not work and the Fan will remain On. The plug will
have to be removed to shut off the power.
Summary of Contents for COLORQUBE 8570
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