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AX-M9000
1-6
1.
2.
3.
4.
5.
6.
7.
8.
Prior to performing the following procedure, remove
the metal cover, system control assembly and rear
cover.
Remove the six through bolts S attaching the heat
sink and the heat sink cover.
Remove the eleven screws T attaching the power
AMP sub-board assembly.
Disconnect the harness, which is extending from
power transformer, from the connectors TB401,
TB402, TB403 and TB404.
Disconnect the harness, which is extending from the
power transformer for pre-AMP, from the connectors
CN401 and CN402.
Disconnect the harness, which is extending from the
fan, from the connector CN453.
Disconnect the harness, which is extending from the
signal processing board, from the connector CN301.
After removing each screw U attaching the power
AMP sub-board assembly (1) & (2), take off the
power AMP sub-board assembly from the heat sink.
Remove the seven screws V attaching transistor
Q335~Q340.
Removing the power AMP board
assembly / heat sink (See Fig. 13 to 15)
Fig.14
Fig.13
TB401
TB402
CN402
CN401
11
CN301
CN453
TB403
TB404
Power AMP sub-board
assembly (1) (2)
Heat sink cover
Power AMP board
Signal
processing
board
T
U
S
Fig.15
V
Transisitor Q335~Q340.
Power AMP board
Heat sink
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