22
Alignment
r
Reduce the AF generator’s output to zero. Key
the transmitter, and adjust VR1004 (MAIN
Unit) for ±800 Hz deviation on the CTCSS tone
(within 100 Hz).
r
On the computer, re-program channel 2 to en-
able DCS code 627 (encode), and download
this data to the transceiver.
r
With the AF generator still set to zero, key the
transmitter, and adjust VR1005 (MAIN Unit)
for ±900 Hz deviation on the DCS signal (with-
in 100 Hz).
Receiver Squelch Threshold
r
Set the transceiver to channel 2. Set the RF sig-
nal generator to the same frequency (415.000
for version A, 465.000 MHz for version D,
496.000 MHz for Ver. D). Set the signal gener-
ator’s output to -7 dBµ.
r
Adjust VR1006 (MAIN Unit) clockwise until
the squelch just closes, and then counterclock-
wise until the squelch just opens.
r
Turn off the signal generator, and confirm that
the squelch again closes when the RF input
signal disappears.
Restore Original Channel Data
r
When all alignment steps have been complet-
ed, re-load the original channel data from your
computer’s disk, and download it to the trans-
ceiver.
Содержание VX-2000U
Страница 9: ...9 VX 2000U 4ch Front Panel Block Diagram VX 2000U 40ch Front Panel Block Diagram Block Diagram ...
Страница 10: ...10 Note Block Diagram ...
Страница 11: ...11 Block Diagram VX 2000U Main Unit Block Diagram ...
Страница 12: ...12 Block Diagram Note ...
Страница 13: ...13 Interconnection Diagram VX 2000U 4ch Front Interconnection Diagram T9206689A Lot 6 ...
Страница 14: ...14 Interconnection Diagram VX 2000U 40ch Front Interconnection Diagram T9206689A Lot 6 ...
Страница 24: ...24 Note MAIN Unit Lot 1 ...
Страница 27: ...27 MAIN Unit Lot 4 Circuit Diagram ...
Страница 28: ...28 MAIN Unit Lot 4 Note ...
Страница 31: ...31 MAIN Unit Lot 7 Circuit Diagram ...
Страница 32: ...32 MAIN Unit Lot 7 Note ...
Страница 35: ...35 MAIN Unit Lot 10 Circuit Diagram ...
Страница 36: ...36 MAIN Unit Lot 10 Note ...
Страница 55: ...Display 1 Unit 55 Circuit Diagram ...
Страница 56: ...56 Display 1 Unit Parts Layout Side A Side B XN1213 9L Q2001 2003 2004 BU4094BCFV Q2002 DTC124EK 25 Q2005 ...
Страница 58: ...58 Display 1 Unit Note ...
Страница 59: ...Display 2 Unit 59 Circuit Diagram ...
Страница 62: ...62 Display 2 Unit Note ...