Diagnostics; Diagnostic Tools; Diagnostic Procedure Summary - GE Vivid i n Service Manual

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Diagnostics

The diagnostic tools are provided for checking the system which includes the power supply,

temperature, fan operation, board functions, Back-end signal processing performance, keyboard

operation, peripherals, and so on.

The diagnostic tools are used to identify and correct problems, as follows:

When the system boots up, it loads all the required drivers and establishes communication with the

Front Board, via the PCI bus. Check the system presets to verify that good unit performance can

be achieved.

When the Back End is operating, you can verify proper voltages and temperatures in the Front End

and in the Power Supply. To check the Front End parts, the tests must follow a logical sequence,

in order to identify the faulty component. For example, testing communication between the Front

End and the Back End begins by testing the RFI board and the PCI bus, before testing all the other

boards, in the following sequence (as applicable):

Many error messages are displayed due to minor changes in calibration that may occur during normal

operation. Before performing diagnostic tests, perform calibration, as described in the

Calibration section, page

the Front End diagnostics described in

RFI board, TR32 boards, Probe and MUX board

7-25. If error messages are displayed after performing calibration, perform

Section 7-2 - Diagnostics

IVID I N AND

Performing Front End (FE) Diagnostics on page 7 -