Toshiba T3300SL Maintenance Manual page 31

Procedure 2 Printer Port LED Check
The printer port LED displays the IRT status and test status by turning lights on and off as an eight-
digit binary value. Figure 2-2 shows the printer port LED.
NOTE: When you perform this check, the external FDD/PRT option in the SETUP program
must be set to PRT.
To use the printer port LED, follow these steps:
1. Turn off the T3300SL's power.
Plug the printer port LED into the T3300SL's PRT/FDD connector.
2.
3. Turn on the T3300SL's power.
4. Read the final LED status from left to right as you are facing the back of the computer.
Figure 2-2 Printer port LED
Figure 2-3 Reading the printer port LED
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