Alinco DJ-V57, Service Manual

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ADJUSTMENT DJ-V57
4
·
13.8V DC shall be supplied to the DC Jack of the unit.
·
Antenna connector shall be connected to a measurement equipment with a 50 ohms shield cable.
·
The test frequency can be varied /- 0.2MHz when receiving interference or interfering with other productions.
10. VHF Wide Mic Deviation adjusting
Set the memory channel number to [11].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder.
Specs: 4.5 +/- 0.1KHz
Condition;
·
frequency: 145.000MHz
·
AF filter setting: off – 20KHz
11. VHF Narrow Mic Deviation adjusting
Set the memory channel number to [12].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder.
Specs: 2.2 +/- 0.1KHz
Condition;
·
frequency: 145.000MHz
·
AF filter setting: off – 20KHz
12. UHF Wide CTCSS tone [88.5Hz] Deviation
Set the memory channel number to [14].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder and then check if the waveform of the
tone signal demodulated is sign waveform.
Specs: 0.80 +/- 0.05KHz
Condition;
·
frequency: 435.000MHz
·
AF filter setting: off – 3KHz
13. UHF Narrow CTCSS tone [88.5Hz] Deviation
Set the memory channel number to [15].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder and then check if the waveform of the
tone signal demodulated is sign waveform.
Specs: 0.50 +/- 0.05KHz
Condition;
·
frequency: 435.000MHz
·
AF filter setting: off – 3KHz
14. UHF Wide DCS [255] Deviation checking
Set the memory channel number to [16].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder.
Specs: 0.80 +/- 0.05KHz
Condition;
·
frequency: 435.000MHz
·
AF filter setting: off – 3KHz
15. UHF Narrow DCS [255] Deviation checking
Set the memory channel number to [17].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder.
Specs: 0.50 +/- 0.05KHz
Condition;
·
frequency: 435.000MHz
·
AF filter setting: off – 3KHz
16. VHF Wide CTCSS tone [88.5Hz] Deviation
Set the memory channel number to [18].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder and then check if the waveform of the
tone signal demodulated is sign waveform.
Specs: 0.80 +/- 0.05KHz
Condition;
·
frequency: 145.000MHz
·
AF filter setting: off – 3KHz
17. VHF Narrow CTCSS tone [88.5Hz] Deviation
Set the memory channel number to [19].
Transmit a signal with the unit and adjust the deviation to the specs by rotating the rotary encoder and then check if the waveform of the
tone signal demodulated is sign waveform.
Specs: 0.50 +/- 0.05KHz
Condition;
·
frequency: 145.000MHz
·
AF filter setting: off – 3KHz
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