Pll Alignment; Transmitter Alignment - Vertex Standard VX-1700 Alignment Manual

Reference & Local Alignment
PLL Reference Frequency Alignment
Connect the Frequency Counter to pin 4 of Q1062 on the MAIN Unit.
Adjust X1003 on the MAIN Unit for 22.625 MHz ±10 Hz on the frequency Counter.
2nd Local Output Level
Connect the RF millivoltmeter to TP1043 on the MAIN Unit.
Adjust T1013 on the MAIN Unit for 160 mVrms (±50 mVrms) on the RF millivoltmeter.
Confirm that the output level is 0 dBm (±2 dB) on the RF millivoltmeter.

PLL Alignment

VCO VCV Alignment
Connect the DC voltmeter to TP1048 on the MAIN Unit, and referring to the Table below, switch
the transceiver to each channel listed. Then adjust the listed component for the required voltage
or confirm that the correct voltage is present.
Tune to
13.499 MHz
0.100 MHz
29.999 MHz
13.5000 MHz
PLL Output Level
Connect the RF millivoltmeter to TP1039 on the MAIN Unit, then tune the radio to 7.500 MHz.
Confirm that the output level is more than 10 dBm.

Transmitter Alignment

TX IF Coils Alignment
Connect the 50 Ohm Dummy Load to the ANT jack.
Remove the coaxial plug from J1002 on the MAIN Unit, then connect the RF millivoltmeter
and 50 Ohm resistor to J1002.
Connect the AF Generator to pin 5 of the MIC jack.
Tune the radio to 7.500 MHz, USB mode.
Inject a 1500 Hz audio signal from the AF Generator.
Key the transmitter (connect pin 6 of the MIC jack to GND), then adjust the AF Generator
output level so that the RF millivoltmeter reading is approximately 0 dBm.
Adjust T1008, T1009, T1010, and T1011 on the MAIN Unit in succession several times for
maximum indication on the RF millivoltmeter while transmitting.
Adjust or Confirm
Adjust T1066
Confirm
Adjust T1067
Confirm
3/7
FCC ID: K6610511070
IC ID: 511B-10511070
For
5.2 V ± 0.1 V
More than 0.6 V
5.3 V ± 0.1 V
More than 0.5 V
Vertex Standard Co., Ltd.
Alignment