Troubleshooting 3-25
The following informational blocks present the LED indicators of the HP 3000 Core I/O card shown in
Figure 3-4.
Internal Modem LEDs Data Activity
Transmit If blinking (or on) data is being transmitted
Receive If blinking (or on) data is being received
DCE Link Speed
Internal Modem LEDs 14400 bps 9600 bps 2400 bps Other speed or no connect
9600 ON ON OFF OFF
2400 ON OFF ON OFF
SE SCSI Selftest Description
ON SE SCSI Selftest failed.
OFF SE SCSI Selftest passed.
SE SCSI Term Power Description
ON Indicates that the SE SCSI circuitry is supplying termination power.
OFF The termination power fuse is blown. NOTE, the termpower fuse on
this part of the Core I/O assembly is not field replaceable. Selftest will
fail if the termpower fuse is bad.
Console/LAN Selftest Description
ON Console/LAN Selftest failed.
OFF Console/LAN Selftest passed.
Blinking LAN network error external to core I/O card.
F/W Diff SCSI Selftest Description
ON F/W SCSI Selftest failed.
OFF F/W SCSI Selftest passed.
F/W Diff SCSI Term Power Description
ON Indicates that the F/W SCSI circuitry is supplying termination power.
OFF The termpower fuse is blown, replace fuse. The termpower fuse on
this part of the Core I/O is field replaceable. Selftest will fail if the ter-
mpower fuse is bad. (fuse part No. 2110-5017 (2A 125V))
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