Samsung 400DXn Service Manual page 27

4. Troubleshooting
SOUND / PANEL INFO. Part

SPREAD SPECTRUM Part

4-12
CM Threshold
The start point of operating carrier mute function.
A2 THRESHOLD
The threshold value of second carrier level recognizing MONO
or STEREO.
Display the panel use time and the number of change.
Spread Spectrum Adjustment
The application status of Spread spectrum
Amplitude and Period Setting