GE MEDICAL SYSTEMS
D
IRECTION FK091075, REVISION 04 VIVID 3N PRO/EXPERT SERVICE MANUAL
Chapter 7 Diagnostics/Troubleshooting 7-75
7-4-3-2 Phono Test
1) Connect the media microphone to the microphone input on the ECG board.
2) Access the HW Diagnostics menu, as described in 7-4-1 "Accessing the Back End Diagnostic
Options" on page 7-71.
3) Trackball to the ECG / Phono button and press Select. The TestECGDevice dialog box is
displayed, as shown in Figure 7-48 "Test ECG Device Dialog Box" on page 7-74.
4) In the Select trace area, trackball to the Phono radio button and press Select.
5) Trackball to the Open Device button and press Select.
6) Use your finger to click the microphone. The Phono signal is displayed in the data area. Verify that
the waveform on the screen corresponds to the microphone clicks.
7) When you are finished, trackball to the EXIT button and press Select.