Close Up Of Transmit Channel - GE LOGIQ E9 Service Manual

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Table of Contents

5180483-100, R

Visual Inspection of Board (cont'd)

Transmit Channel

4) Transmit Transformer

5) Local Power Resistors

When Visual Inspection Reveals Physical Damage

Replace the GTX Board that shows evidence of burn damage. Then run the following diagnostics:

Failure of one of these diagnostics, following the replacement of the defective GTX Board, will typically

mean damage to one of the Front Planes. Swap locations of the Front Planes and re-run the tests to

see if the failure follows the Front Plane. In rare occurrences damage has occurred to the GRX Board.

Damage to the GRX Board may show as a bright or dark spot in the near field image. See:

Figure 7-192 "Check in near Field Image" on page 7-288.

If these diagnostics pass check image quality in the near field:

PROPRIETARY TO GE

Figure 7-191 Close up of Transmit Channel

Run T/R Channel diagnostic

Run Analog Rx diagnostics

Install and check image quality on all probes that may have been used during the time period

that the system began to show the transformer failure issue.

Chapter 7 Diagnostics/Troubleshooting

Troubleshooting