Yaesu FT-2500M, Техническое дополнение

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The FT-2500M has been carefully aligned at
the factory for the specified performance across
the amateur band. 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 pol­
icy 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 are replaced, realignment may be re­
quired. If a sudden problem occurs during nor­
mal operation, it is likely due to component
failure; realignment should not be done until af­
ter the faulty component has been replaced.
We recommend that servicing be performed
only by authorized Yaesu service technicians
who are experienced with the circuitry and fully
Alignment
equipped for repair and alignment. Therefore, if
a fault is suspected, contact the dealer from
whom the transceiver was purchased for instruc­
tions regarding repair. Authorized Yaesu service
technicians realign all circuits and make com­
plete performance checks to ensure compliance
with factory specifications after replacing any
faulty components.
Those who do undertake any of the following
alignments are cautioned to proceed at their own
risk. Problems caused by unauthorized attempts
at realignment are not covered by the warranty
policy. Also, Yaesu must reserve the right to
change circuits and alignment procedures in the
interest of improved performance, without noti­
fying owners.
Under no circumstances should any align­
ment be attempted unless the normal function
and operation of the transceiver are clearly un­
derstood, the cause of the malfunction has been
Case Disassembly
D
Make sure the transceiver is off. Remove the
two screws from each side of the top and bot­
tom covers, then loosen the two rear screws.
Next remove the top and bottom covers, the
CNTL Unit is now accessible from the top of
the chassis.
D
To expose the Main Unit PCB on the bottom of
the transceiver chassis, remove the 5 screws
affixing the shield cover plate, and remove the
cover.
DISPLAY Unit
MIC
Unit
2-5