GE LOGIQ E9 Service Manual page 301

GE
D 5535208-100, R
IRECTION
7-5-8-7 Transmit/Receive
Name: T/R Channel Test
Description: Transmit and Receive Channel Test. Transmits on one at a time and received on one
channel at a time using an open probe connector.
Run Time: 00:03
If this test failed:
1.) Swap front-plane boards to determine if the failure point changes as the boards are moved.
2.) Swap DRX boards to determine if the failure point changes as the boards are moved. Replace any
failed DRX board.
3.) Run Analog Receive Tests from section
4.) Replace GRX boards.
5.) Replace GRLY.
NOTE: Tx Rx Chain Test Tx1
Tx Rx Chain Test Tx2
These tests will be removed from the Service Diagnostics folder. They will remain in the
Engineering Diagnostics folder.
NOTE: GRLY folder
GRLY Receive Test conn 1
GRLY Receive Test conn 2
GRLY Receive Test conn 3
GRLY Receive Test conn 4
These tests will be removed from the Service Diagnostics folder. They will remain in the
Engineering Diagnostics folder.
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EV
Chapter 7 Diagnostics/Troubleshooting
7-5-8-8 "Analog Receive" on page
LOGIQ E9 S M
ERVICE ANUAL
7-54.
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