GE LOGIQ E9 Service Manual page 312

GE
D 5535208-100, R
IRECTION
7-5-8-10 I/O Board Tests (cont'd)
Name: I/O Board Pwr Supply Test
NOTE: Description: Compares all local I/O Board voltages to their specified values.
Run Time: 00:01
If this test failed:
1.) Replace the I/O Board.
Name: I/O Board GFI Voltage Test
Description: Compares all voltages on the GFI to their specified values. The GFI may not be working,
therefore the BEP cannot communicate with the Front End.
Run Time: 00:01
If this test failed:
1.) Verify that the BEP to Backplane cable is properly connected and/or swap the cable with a known
good cable. If the problem continues:
2.) Run the GFI tests to determine if the GFI is faulty. See:
Name: I/O Board GFI Temperature Test
Description: Reads temperature sensors on the GFI board and compares the values against specified
limits.
Run Time: 0:05
If this test failed:
1.) Verify that the BEP to Backplane cable is properly connected and/or swap the cable with a known
good cable. If the problem continues:
2.) Check the Front End card rack cooling fans.
3.) Run the GFI Tests to determine if the GFI is faulty. See:
Name: I/O Board Self Test
Description: The processor on the I/O Board performs a check of its basic functions.
Run Time: 00:01
If this test failed:
1.) Verify that the BEP to Backplane cable is properly connected and/or swap the cable with a known
good cable. If the problem continues:
2.) Replace the I/O Board.
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EV
Section 7-5 - Common Service Desktop
LOGIQ E9 S
7-5-8-3 "GFI" on page 7-46.
7-5-8-3 "GFI" on page 7-46.
M
ERVICE ANUAL