T/R Channel Diagnostic Results - GE LOGIQ E9 Service Manual

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PROPRIETARY TO GE

5180483-100, R

T/R Channel Diagnostic Results

Figure 7-187 T/R Channel Diagnostic Results

The GTX column numbers, refer to "GTX Board number, David ASIC, channel within David."

For example: If under the GTX column, you see 1,0,0 - this is referring to GTX1, David ASIC number 0,

channel 0 within David.

Transmit signals generated on GTX1, are received back on the GRX64 and passed via the Backplane

to DRX1. Transmit channels generated on GTX2, are received back on the GRX128 and passed via the

Backplane to DRX2. Transmit channels generated on GTX3, are received back on the GRX128 and

passed via the Backplane to DRX3.

For service, the relevant information is the board number. If any channel fails, the board in that path can

be identified.

Section 7-9 - Troubleshooting Tips