1-30 (No.MB570)
3.3.4 Removing the power board
(See Figs.7 to 9)
• Prior to performing the following procedures, remove the am-
plifier assembly and rear panel.
(1) From the top side of the amplifier assembly, disconnect the
wires from the connectors (CN103
, CN151) on the power
board. (See Fig.7)
(2) Disconnect the power cord from the connector CN101
on
the power board, and take out the power cord. (See Fig.7)
(3) Remove the five screws F, screw F' and two screws G at-
taching the power board. (See Figs.7 and 8.)
Reference:
When attaching the screw F', attach it with the earth wire.
(See Fig.8.)
(4) From the right side of the amplifier assembly, remove the
two screws H attaching the power board. (See Fig.9)
(5) From top side of the amplifier assembly, disconnect the
power board from the connectors (CN301
, CN302 and
CN304
) on the main board, and take out the power board
from the amplifier assembly. (See Fig.8)
Fig.7
Fig.8
Fig.9
CN151
CN101
CN103
Power board
Power cord
F
G F' F G
Earth wire
CN302
CN304 CN301
Main board
Power board
Power board
H
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