Users Manual
Maintenance & Inspection
6-9
6.5 DSC AF inspection
DSC AF modulation frequencies can be checked for periodic inspections etc.
■ Procedure ■
1
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From the main menu, touch the [MAINT] [DSC AF
CHECK] buttons to display the screen as shown at
right.
2
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Select the TYPE of DSC modulation signal.
The following types are selectable.
- 2100 Hz: Space frequency (B)
- 1300 Hz: Mark frequency (Y)
- DOT: Dot pattern
3
3
3
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Select the OUTPUT PORT of DSC modulation signal.
The following output ports are selectable.
- VDR&SP: VDR output and internal speaker
- VDR&EXHS: VDR output and external handset
- VDR&EXSP: VDR output and external speaker terminal
4
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4
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Touch the [START] button to output the DSC
modulation signal.
The [START] button becomes the [STOP] button.
To stop the signal, touch the [STOP] button.