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The Ff-530 is carefully aligned at the factory
for the specified performance across the ama
teur bands . Realignment should therefore not
be necessary except in the event of a compo
nent failure. All component replacement and
service should be performed only by an autho
rized Yaesu representative, or the warranty
policy may be voided.
The following procedures cover the some
times critical and tedious adjustments that are
not normally required once the transceiver has
left the factory. However, if damage occurs
and some parts subsequently be replaced, re
alignment may be required. If a sudden prob
lem occurs during normal operation, it is
likely due to component failure; realignment
should not be done until after the faulty com
ponent has been replaced.
We recommend that servicing be performed
only by authorized Yaesu service technicians
who are experienced with the circuitry and
fully equipped for repair and alignment.
Therefore, if a fault is suspected, contact the
dealer from whom the transceiver was pur
chased for instructions regarding repair. Auth
orized Yaesu service technicians realign all
circuits and make complete p erformance
checks to ensure compliance with specifica
tions after replacing any faulty components.
Those who do undertake any of the follow
ing alignments are cautioned to proceed at
their own ris�. Problems caused by unauthor
ized attempts at realignment are not covered
by the warranty policy. Also, Yaesu must re
serve the right to change circuits and align
ment procedures in the interest of improved
performance, without notifying owners.
Under no circumstances should any align
ment be attempted unless the normal function
and operation of the transceiver are clearly
understood, the cause of the malfunction has
been clearly pinpointed and any faulty com
ponents replaced, and the need for realign
ment determined to be absolutely necessary.
The following test equipment (and thor
ough familiarity with its correct use) is neces-
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sary for complete realignment. Correction of
problems caused by misalignment resulting
from use of improper test equipment is not
covered under the warranty policy. While
most steps do not require all of the equipment
listed, the interactions of some adjustments
may require that more complex adjustments
be performed afterwards. Do not attempt to
perform only a single step unless it is clearly
isolated electrically from all other steps.
Rather, have all test equipment ready before
beginning, and follow all of the steps in a
section in the order presented.
Required Test Equipment
0 RF Signal Generator with calibrated output
level at 450 MHz
0 Deviation Meter (linear detector)
0 AF Millivoltmeter
0 Inline Wattmeter accurate to 450 MHz
0 Regulated DC Power Supply adjustable
from 5 to 13 V, 2 A, with milliammeter
0
50-Q Dummy Load: 10 W at 450 MHz
0 Frequency Counter: ± 0.2-ppm accuracy at
450 MHz
0 AF Signal Generator
0 DC Voltmeter: high impedance
0 UHF Sampling Coupler
Alignment Preparation & Precautions
A 50-Q dummy load and inline wattmeter
must be connected to the antenna jack in all
procedures that call for transmission, except
where specified otherwise. C orrect alignment
is not possible with an antenna.
After completing one step, read the next
step to determine if the same test equipment
will be required. If not, remove the test equip
ment (except power supply, dummy load and
wattmeter, if connected) before proceeding.
Correct alignment requires that the ambient
temperature be the same as that of the trans
ceiver and test equipment, and that this tem
perature be held constant between 20 and 30
°C (68 - 86 °F). If the transceiver is brought
into the shop from hot or cold air
should be
it
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