Service and troubleshooting
EST3 Installation and Service Manual 8.27
Table 8-20: Local trouble pseudo points
Address Label Source Description
0604 Internal Fault General CPU hardware failure
0604 RAM Fault or Stack Fault 3-AADC1 RAM or Stack (memory) fails its
interval check
0605 Database Supervision General Database corrupt
0605 DB Supervision Audio Default
Tone
3-ASU No message present, problem
erasing flash, message space fails
internal checks
0606 Code Supervision General Executable program corrupt
0607 Auxiliary Port One CPU Port 1 serial communication circuit
open or shorted
0607 Data Card Fault 3-AADC1 N/A
0607 Data Card Fault 1 3-DSDC
3-SSDC1
3-SDDC1
N/A
0608 Auxiliary Port Two CPU Port 2 serial communication circuit
open or shorted
0608 Data Card Fault 2 3-DSDC
3-SSDC1
3-SDDC1
N/A
0609 Panel in Download Mode CPU Panel out of service. In mode to
accept download data
0609 Configuration Fault General 1. Module in wrong slot
2. Incorrect display on module
0610 Network Audio Circuit A Fault CPU Loss of signal on primary audio
connection
0610 Rail Voltage Out of Spec 3-PPS/M
3-BPS/M
3-BBC/M
1. Rail voltage >30 Vdc or <24 Vdc
2. Excessive rail current load
3. Faulty or misadjusted
3-PPS/3-BPS
0610 Telephone Line 1 3-MODCOM Line-cut fault detected on phone line
1
0611 Network Audio Circuit B Fault CPU Loss of signal on secondary audio
connection
0611 Rail Vltg Blw Batt 3-PS/M Excessive rail current load
0611 Telephone Line 2 3-MODCOM Line-cut fault detected on phone line
2
0612 Heat Sink Too Hot 3-PPS/M
3-BPS/M
3-BBC/M
1. Enclosure vents clogged
2. Heat sink not fastened properly