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2.4
System Board Troubleshooting
This section describes how to determine if the system board is defective or not functioning
properly. Start with Procedure 1 and continue with the other procedures as instructed. The
procedures described in this section are:
Procedure 1:
Procedure 2:
Procedure 3:
Procedure 4:
Procedure 5:
2-12
Message Check
Printer Port LED Check on Boot mode
Printer Port LED Check on Resume Mode
Diagnostic Test Program Execution Check
Connection and Replacement Check
T4700CS, T4700CT, T4800CT
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