GE MEDICAL SYSTEMS
D
IRECTION FK091075, REVISION 04 VIVID 3N PRO/EXPERT SERVICE MANUAL
7-2 Section 7-2 - Diagnostics
Section 7-2
Diagnostics
7-2-1 Diagnostic Tools
The diagnostic tools check the system parts, as well as power supplies, temperature, fan operation,
board functions, Back-end signal processing performance, keyboard operation, and so on.
7-2-2 Diagnostic Procedure Summary
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 IP card. 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
motherboard and in the AC Distribution Box. 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 IP card and PC2IP, before testing
all the other boards, in the following sequence: VME Bus, FEC, RFT, BF board, FB and MUX board.
• 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 Section 6-8
"Calibration" on page 6-21. If error messages are displayed after performing calibration, perform the
Front End diagnostics described in Section 7-3 "Performing Front End (FE) Diagnostics" on page 7-
5.
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