Yaesu FL-110, Инструкция по эксплуатации

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Repeat this procedure until the AFP circuit works without fail
with a 20 watts input and does not work with a 15 watts input.
Then, rotate VR301 in a counter-clockwise direction until the
AFP circuit is activated. Slowly rotate the VR301 back approximately
5 degrees in a clockwise direction. Set the exciter to receive.
Connect VSWR meter, antenna coupler and d
umm
y load /wattmeter
to the antenna connector. Transmit on 3. 5 MHz and adjust exciter
output and antenna coupler to produce VSWR 1: 3 at 70 watts output.
Slowly rotate VR203 in a clockwise direction until the AFP circuit
is activated.
(4) CARRIER CONTROL CIRCUIT ADJUSTMENT ( VRlOl)
After completion of above procedure, disconnect the PTT
connection between the exciter and FL -110. Set VRl 01 to
a fully clockwise position. Turn the power switch 110N11
and apply 3. 5 MHz 10 watts CW signal from the exciter.
Carefully rotate VRl 01 in a counter-clockwise direction
until the relay is activated. Recover the PTT connection.
( 5) PA BIAS ADJUSTMENT ( VR1201)
This adjustment is only required when the PA power transistors
are replaced. Otherwise, please do not adjust the VR1201 as
an incorrect setting will result in damage to the PA transistors.
Connect IA ammeter in the power supply line ( cut red wire) to
measure PA collector idle current. Disconnect the exciter from
the FL-110. Set PTT switch to ( -) position. Connect PTT terminal
( pin 4) to ground. Turn the power switch 110N11• Adjust VR1201
for 1 OOmA idle current. Remove the a
mm
eter from the circuit
and recover the wiring cut for the ammeter installation.
VR1201 VR3o1 LPF
BOOSTER
UNIT UNIT
LEFT SIDE VIEW
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