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Disassembly method
<Main body section>
Replacement of the fuses and power amplifier IC
Replacing the fuses
Remove the left side plate according to its
disassembly method (see Figs. 6 and 7).
Fuses are located inside the left side plate.
[Caution] Be sure to replace the required fuses
with designated ones.
Replacing the power amplifier IC on
the main board
Remove the main board according to its
disassembly method. (See Figs. 18 and 19.)
1.
From the reverse side of the main board, remove
the two screws A retaining the bracket.
2.
From the forward side of the main board, remove
the four screws B retaining the bracket.
3.
Remove the screw C attaching the power amplifier
IC onto the heat sink. (See Fig.3.)
4.
In order to replace the power amplifier IC, remove
the solder from the soldered part a on the reverse
side of the main board. (See Fig.3.)
(See Fig. 1.)
(See Figs. 2 and 3.)
(See Fig.2.)
(See Fig.3.)
Fuse(F904)
1.6A 250V
Fuse(F902)
Fuse(F903)
2.5A 250V
2.5A 250V
Fig.1
Main board (Reverse side)
Fig.2
Soldered part a
C
Heat sink
Power amplifier IC
(IC402)
Fig.3
UX-M55
Power board
Fuse(F901)
1.6A 250V
A
Main board
B
Bracket
1-5
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