GE LOGIQ E9 Service Manual page 249

GE
D 5573152-100, R
IRECTION
7-5-8-8 Analog Receive (cont'd)
Name: Analog RX Test (Low Gain)
Description: Signal path test of the GRX boards with a TGC set to low gain.
Run Time: 00:02
If this test failed:
1.) Swap DRX boards to determine if the failure point changes as the boards are moved.
NOTE: A block of 8 dead channels indicates a failed DRX board.
2.) Replace any failed boards.
3.) Replace GRX boards (these cannot be swapped as one is 64 channel and one is 128 channel).
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Chapter 7 Diagnostics/Troubleshooting
LOGIQ E9 S M
ERVICE ANUAL
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