SonoSite C1.9 PLUS, Руководство по обслуживанию

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34 C1.9 PLUS Ultrasound System Service Manual
6.4 Failures
6.4.1 Display
Attach an external monitor to the external video connector to verify display failures.
For example, if the system display is blank and the external monitor works properly,
the system display requires servicing.
6.4.2 Control Panel
Go to the patient information screen and press each individual key on the keyboard
to identify and verify control panel failures. Press function keys and note their
response.
6.4.3 Trackball
Intermittent function or loss of control indicates trackball failures. Clean the
trackball by removing the retainer ring and then removing the ball.
6.4.4 Main PCBA
The main PCBA can present symptoms that may be difficult to assess. Main PCBA
failures result in “assert codes” that are output to the display. Note these assert codes
and contact SonoSite technical support, per Appendix B,
Service Event Report, on
page 85, to clarify the failure. Figure 6.1 shows an assert code and a maintenance
icon displayed on the system screen.
Figure 6.1 Assert Code and Maintenance Icon
Assert code
Maintenance icon