2 Troubleshooting 2.4 System Board
2-10 TECRA S1 Maintenance Manual
2.4 System Board To check if the system board is defective or malfunctioning, follow the troubleshooting
procedures below as instructed.
Procedure 1 Message Check
Procedure 2 Printer Port LED Check (in Boot Mode)
Procedure 3 Printer Port LED Check (in Resume Mode)
Procedure 4 Test Program Check
Procedure 5 Replacement Check