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The FRG-100 is carefully designed to allow
the knowledgeable Operator to make nearly
all adjustments for various Station conditions,
modes and Operator preferences simply from
out having to open the case of the transceiver.
The FRG-100 Operation manual describes
these adjustments, plus certain internal set-
tings.
The following procedures cover the some-
times critical and tedious adjustments that are
normally required once the transceiver
not
has left the factory. However, if darnage oc-
sudden Problem occurs during normal opera-
tion, it is likely due to component failure; re-
alignment should not be done until after the
fault component has been replaced.
We recommend that servicing be per-
formed by authorized Yaesu Service techni-
equipped for repair and alignment. So, if a
fault is suspected, you should contact the sell-
ing dealer for instructions regarding repair.
Authorized Yaesu Service technicians have
the latest modification information, and re-
align all circuits and make complete perform-
factory specifications after replacing faulty
components.
Those who do undertake any of the follow-
ing alignments are cautioned to proceed at
their own risk. 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 interests of improved
Performance, without notifying owners.
ment be attempted unless the normal function
and Operation of the receiver are clearly un-
derstood, 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 it's correct use) is neces-
sary for complete realignment. Correction of
the Problems caused by misalignment result-
ing 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. D
isolated electrically from all other Steps.
Rather, have all test equipment ready before
beginning, and follow all of the Steps in a
output and dB scale, 0 dBp=0.5 PV
0 FM Unit-100
0 SINAD Meter
Alignment Preparations G) Precautions
Except where specified otherwise, the re-
ceiver should be tuned to 14.2 MHz, and the
following controls set as indicated;
0
all buttons off
0
all knobs fully CCW (minimum)
After completing one Step, read the follow-
.
mg step to determine whether the same test
equipment will be required. If not, remove the
test equipment before proceeding.
Correct alignment requires that the ambi-
ent temperature be the same as that of the
temperature be held constant between 20 and
the shop from hot or cold air it should be
allowed some time for thermal equalization
with the environment before alignment.
Alignments must only be made with the
oscillator shields and circuit boards firmly in
not attempt to
O
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