A. PLL Unit
1 ) VCV (Varactor Control Voltage)
a) With the dummy load connected to
the ANT jack, connect the DC
voltmeter (10V scale) to the VCV
terminal on the VCO Unit.
b) Tune the transceiver to 430 MHz
(432 M H z for Version D), and
while receiving, adjust TC301 on
the VCO Unit for at least 0.8V
(1.0V for Version D).
c) R e t u n e the transceiver to the
f r e q u e n c y indicated below and
a d j u s t TC301 again, this time
while transmitting, for the voltage
indicated.
d) Repeat steps b and c several times,
and then remove the voltmeter.
PLL ALIGNMENT POINTS
24
Summary of Contents for FT-712RH
Page 4: ...PA UNIT APC UNIT 430 VCO UNIT LCD UNIT CONTROL UNIT BOARD LAYOUT 2...
Page 8: ...reverse view of chip only side 6...
Page 9: ...MAIN UNIT VOLTAGE CHART DC VOLTS MAIN UNIT 1C VOLTAGE CHART DC VOLTS...
Page 15: ...20 32 HD404418A01F 02003 obverse view of 1C side 14...
Page 16: ...S obverse view of 1C side 15 ANODE 1 CATHOOE 1...
Page 17: ......
Page 18: ...PA UNIT No 7 XX obverse view of component side reverse view of component side 17...
Page 19: ...obverse view of chip only side reverse view of chip only side 18...
Page 20: ...19...
Page 21: ...MAIN UNIT 20...
Page 22: ...21 e s A...
Page 23: ...22...