User manual
5-2 TVC-500 Operation Manual
020-100539-01 Rev. 1 (08-2010)
Section 5: Troubleshooting
5.2 LED Color Definitions
5.3 Diagnostic LED and Audible (beep) codes
This section describes the front panel LED error and operation codes, as well as the audible codes which might
occur before or during the Power-ON Start Test (POST).
Table 5.1 LED Color Definitions
LED State LED Color System Status
Solid Blue System is on
Flashing Blue System is in standby
Solid or Flashing Red System has experienced an error (see Section 5.4 POST Error Messages)
None No light System is in hibernate, or is off
Table 5.2 Diagnostic LED and Audible Codes
Activity Possible Cause Recommended Action
Blue Power LED * ON.
No beeps.
Workstation ON. N/A
Blue Power LED * blinks
every two seconds. No
beeps.
Workstation in Sleep mode
(S3-Suspend to RAM).
Select models only.
Blue Power LED * is
OFF. No beeps.
Workstation in Hibernate
mode (S4-Suspend to
disk).
Blue Power LED * blinks
three times*, once per sec-
ond.* No beeps.
Workstation in Sleep mode
(S3-Suspend to RAM).
Select models only.
Blue Power LED * blinks
four times*, once per sec-
ond.* No beeps.
Workstation in Hibernate
mode (S4-Suspend to
disk).
* User-selectable by hitting
F10 and selecting options under Power.
For the following LED activity and beeps, the beeps are heard through the chassis speaker. Blinks and beeps repeat for
5 cycles, after which, only the blinks continue to repeat.