2.4 System Board Troubleshooting 2 Troubleshooting Procedures
Procedure 2 Printer Port LED Check on Boot Mode
The printer port LED displays the IRT status and test status by turning lights on and off as an
eight-digit binary value for boot mode. Figure 2-2 shows the printer port LED.
NOTE: You need Advanced Port Replicator III Plus in this test.
Figure 2-2 Printer port LED board
Figure 2-3 shows the function of the printer port LED.
Figure 2-3 Function of Printer port LED
TECRA M5 Maintenance Manual (960-542) [CONFIDENTIAL] 2-19
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