Yaesu FL-110, Instruction Manual

Page: 11 / 16

REALIGNMENT PROCEDURE
(1) DELA Y ADJUSTMENT (VR201)
The relay hold time can be adjus ted by VR201. Clockwis e
rotation of VR201 will produce longer hold time.
(2) BALANCE ADJUSTMENT OF CM COUPLER (TClOl, TC301)
Set the power s witch to 110FF". Connect d
umm
y load/watt meter,
YP-150, to antenna connector. Set the output power of the exciter
to 10 watts on the 3. 5 MHz band. Connect a VTVM between a check
point marked 11R11 in the control unit(+) and ground(-) . Adjus t
TClOl for a minimum VTVM reading (les s than 0. 05V) .
Connect plus (+) lead of VTVM to TP301 in the LPF unit. Set
the power s witch to 110N11• Adjus t TC301 for a minimum VTVM
reading (less than 0. 1 volts ) .
(3) AFP CIRCUIT ADJUSTMENT (VR202, VR203, VR301)
Prior to this adjus tment, complete the adjus tment of CM coupler
des cribed in Step (2) .
Set VR202 to a fully clockwis e pos ition and VR203 to a fully
counter-clockwis e pos ition in the control unit. Set VR301 in the
LPF unit to a fully clockwis e pos ition. Connect the dummy
load/wattmeter to the antenna connector and apply 3. 5 MHz
20 watts carrier s ignal from the exciter. Slowly advance VR202
in a counter-clockwis e direction and s et VR202 to the point where
the AFP relay is activated. Turn the power s witch 110FF11 and
adjust the exciter output to 15 watts . Turn the power s witch "ON".
The AFP circuit s hould not work with a 15 watts drive power.
If it s hould work with 15 watts, s lowly advance VR203 in a clockwis e
direction.
CONTROL VR203
UNIT
BOOSTER LPF VR101 TC101CONTROL
UNIT UNIT
UNIT
RICHT SIDE VIEW
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