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General Troubleshooting & Service Teledyne API T703/T703U Calibrator Operation Manual
162
5. Follow the procedures defined in Section 3.4.4 to confirm that the calibrator’s vital
functions are working (power supplies, CPU, relay PCA, keyboard, PMT cooler,
etc.).
See Figure 3-5 for general layout of components an
d sub-assemblies in the
calibrator.
See the wiring interconnect diagram and interconnect list in Appendix D.
8.1.1. FAULT DIAGNOSIS WITH WARNING MESSAGES
The most common and/or serious instrument failures will result in a warning message
being displayed on the front panel. Table 8-1 lists warning messages, along with their
meaning and recommende
d corrective action.
It should be noted that more than two or three warning messages occurring at the same
time is often an indication that some fundamental sub-system (power supply, relay PCA,
motherboard) has failed rather than an indication of the specific failures referenced by
the warnings. In this case, it is recommended that proper operation of power supplies
(See Section 8.4.3), the relay PCA (See Section 8.4.7), and the motherboard (See
Section8.4.9) be confirmed before addressing the specific warning messages.
If a Warning Message is
active, the FAULT LED flashes, the Param field displays the
Warning message, and the CLR button appears/becomes active (press to clear Warning
message).However, if there is more than one warning in queue or if you are in the TEST
menu and have not yet cleared the message, the MSG button displays. The following
display/touchscreen examples provide an illustration of each:
07223C DCN6572