Service manual

22VX-4500/-4600 Series UHF FM Transceiver Service Manual
Alignment
EXT AF OUT Level
This parameter is to align the “EXT AF OUT Level”.
Set the Low-level receiver output of pin 2 of the D-SUB Connector.
1. Press the “Ext AF Out” button to start the alignment.
The Ext AF Out Level window will appear.
2. Connect the AF Signal Generator to pin 1 of the D-SUB
connector (GND: pin 3). Then inject a 1 kHz tone / Sin-
Wave / +40 dBu.
3. Set the Peak signal level to –10 dBm ±0.7 dB at 600-ohm
on pin 2 of the D-SUB connector (GND: pin 3) by entering
the alignment value in the “New” box.
Default: 7
Input Range: 0 (Level Down) ~ 15 (Level Up)
4. Click the “OK” button, the data will be saved and the align-
ment is complete.
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D-SUB Connector Pin Out