UI platform available A Flashing UI platform available 1. Reload system software. 2. If problem still persists, replace the Hard Drive. 3. If problem still persists, replace the SBC.On power up, the 7-segment display cycles through these codes until the relevant platform has fully synchronized with the system. Any code left displayed after power up indicates this event has not been detected in software and is likely a s/w issue.F is only displayed if a Fax card is installed and detected by the software. F is removed when the s/w gets a “platform available” response from the fax s/wIIT communication b Flashing IIT communication established 1. Reload system software. 2. If problem still persists, replace the Hard Drive. 3. If problem still persists, replace the SBC.NC Platform available C Flashing NC Platform available 1. Reload system software. 2. If problem still persists, replace the Hard Drive. 3. If problem still persists, replace the SBC.Dc platform available d Flashing Dc platform available 1. Reload system software. 2. If problem still persists, replace the Hard Drive. 3. If problem still persists, replace the SBC.IOT communication E Flashing IOT communication established 1. Reload system software. 2. If problem still persists, replace the Hard Drive. 3. If problem still persists, replace the SBC.FAX communication F Flashing FAX communication established 1. Reload system software. 2. If problem still persists, replace the Hard Drive. 3. If problem still persists, replace the SBC.Attempting sleep entry L Flashing OS suspending drivers, entering sleep None, for diagnostic information only On system sleep entry an L is briefly displayed while drivers are suspended. The display changes to an r when in deep sleep.In Sleep state r Off Resting in sleep None, for diagnostic information only Display an r when in deep sleep. Decimal point stops flashing in deep sleep.In semi-conscious state t Flashing Running in Low Power mode None, for diagnostic information only Display t in semi-conscious mode between Sleep and Wake.Attempt sleep wake-up H Flashing OS resuming drivers None, for diagnostic information only When leaving deep sleep, display changes from 'H' to 't'. From semi-conscious (t) the machine either fully wakes and blanks the display, or goes back to deep sleep (r).Machine at Ready Blank Flashing No Faults Detected Normal operation If blank, in Ready mode, no faults detected. Table 1 SBC 7-segment Display CodesT