4 - 6 WS80A Service Manual
⑨ Operate Filter to check whether small signals are removed by stage.
⑩ Check whether or not the Color Bar is inverted when you operate the Invert key.
⑪ Move the Baseline up and down to check whether the speed range of blood flow moves to
“+” or “-” position.
▌ PW Spectral Doppler Mode
① Perform a Phantom to check for errors in image.
② Check whether Doppler’s PRF value changes when you set Simultaneous to on/off.
③ Check for errors in the Doppler spectrum.
④ Change the Scale to check the change in velocity range.
⑤ Move the Baseline up and down to check whether the spectrum range moves to “+” or “-”
position.
⑥ Check whether changing Filter removes low signals from the Spectrum.
⑦ Check whether the Doppler wave form is inverted when you operate Invert.
⑧ Perform Angle action.
⑨ Change the position and size of SV, and check for errors.
⑩ Check whether Spectrum’s image changes when you change Spectrum’s Type.
⑪ Check for errors in Sound Volume.
⑫ Perform Auto Calc, and check whether the line is displayed without breaks; check whether
the calculated results are automatically carried out.
⑬ Check for errors in Top Down Format and Side by Side Format images when Loop Format
is selected.
⑭ Check the Cine/Loop (broken image, Auto run, Auto run speed, Trackball Cine) operations.
▌ 3D / 4D Mode
① Check whether loading is performed correctly when you proceed with Free Hand 3D SCAN
and when you skip to Freeze; check for broken images and noise while you are proceeding.
② Check whether loading is performed correctly when you proceed with Static 3D Scan, and
check for broken images and noise while you are proceeding.
Check the probe for noise, and check whether the probe’s motor works normally.
③ Check whether loading is performed correctly when you proceed with Live 3D Scan, and
check for broken images and noise while you are proceeding.
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