Lucent Technologies 1100 Manuale Utente

Pagina di 84
Troubleshooting
 
 
4-4
   Issue 1   June 1998
 Table 4-1.    LED Power up Sequences
 LED Sequence
 Description
No LED blinks
Error with hardware or AC
adapter.
First blink:
Red or Green
LED is not functioning properly
as units should blink Yellow.
Yellow
EPROM Checksum test failed.
Faulty EPROM or Board
problem.
Yellow & 1 Red
SRAM, Data test failed
Yellow & 2 Red
SRAM Address test failed
Yellow & 7 Reds & 1 Green
Passed all hardware tests