ZS3 Service Manual Page 228 of 295
7. Turn PW Gain up to obtain a filled in spectral trace with excess noise (this will
generate white noise for the speakers).
8. Turn the Volume up (Clockwise) and verify that the white noise is audible from
both speakers.
9. If possible – scanning with actual Doppler flow is ideal, but not required.
10. Once verification is complete, return system to normal operation.
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