Skanti DSC 9001, Technical Manual, Page: 158 / 178

Test-step description and error code explanation
DSC 9001:
Step no. 01 Receiver test.
Tests Single Channel Receiver PCB 914.
The receiver is muted. The AF Detector at the output checks that no signal is present.
The test is OK if AF CHECK=1
Error code Possible error source
0101 PCB 914 or cable
0102 RSP AF cable or PCB 717
Step no. 02 Receiver test.
Tests Single Channel Receiver PCB 914.
A 2187.5 kHz test signal is generated locally and injected at the pre-selector input of the
receiver. The signal passes the receiver where it is mixed to a 1.7 kHz tone. The AF Detector at the
output checks that signal is present.
The test is OK if AF CHECK=0
Error code Possible error source
0201 PCB 914 or cable
0202 RSP AF cable or PCB 717
Step no. 03 EEPROM test
Tests Programmable Communication Processor PCB 717.
Checks and re-writes the EEPROM.
The test is OK if the checksum is correct.
Error code Possible error source
1801 PCB 717
SERVICE SELF-TEST
5-6 DSC 9000 TECHNICAL MANUAL