Toshiba TECRA S1 - Manual (Page 49)

2 Troubleshooting 2.4 System Board
2-12 TECRA S1 Maintenance Manual
Procedure 2 Printer Port LED Check (in Boot Mode)
The printer port LED displays the POST status and error status by turning lights on and off as
an eight-digit binary value obtained in the boot mode after the system unit is switched on.
Figure 2-2 shows the printer port LED.
Figure 2-2 Printer port LED
Figure 2-3 illustrates how the printer port LED shows a status value.
Printer port LED status = 35H
Figure 2-3 Printer port LED board