October 2012
6-34
ColorQube 8570/8870 Service Manual
Electrical Troubleshooting
Revised, 3rd Revision - Xerox Internal Use Only
General Troubleshooting
Figure 12 Wiring Harness Connectors
7.
If any triac is found damaged, replace the Electronics Module (
REP 5.1
).
Measuring DC Voltages
1.
Check the Power Supply Status LEDs (
Figure 13
); they all should be bright. If the LEDs
are not all brightly light, false readings will result.
Open a door to make sure 50 voltage is activated, if necessary (red LED lit).
Figure 13 Power Control Board LEDs
Table 3 Triac Channels
Connector
Pin
Channel Function
JAC1
1
Ink Melt Yellow
JAC1
2
Ink Melt Cyan
JAC1
3
Ink Melt Magenta
JAC1
4
Ink Melt Black
JAC2
2
Printhead Reservoir #2
JAC2
3
Printhead Reservoir #1
JAC2
4
Printhead Jetstack Right
JAC2
5
Printhead Jetstack Left
JAC3
7
Paper Preheater
JAC3
8
Drum Heater #2
JAC3
9
Drum Heater #1
Summary of Contents for COLORQUBE 8570
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