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3.2
Power amp. assembly section
• Remove the power amp. assembly from the main body.
(See "Removing the power amp. assembly".)
3.2.1 Removing the relay board & Rch amp. board & Lch amp. board & Cch amp. board & SL/SRch amp. board
(See Figs.1 to 3)
(1) From the top side of the amp. assembly, disconnect the
wires from the two connectors on each thermal
compensation board. (See fig.1)
(2) From the bottom side of the amp. assembly, remove the
two screws A attaching the relay board. (See fig.2)
(3) Disconnect the wires from the five connectors on each
thermal compensation board. (See fig.2)
(4) Disconecct the connectors CN712, CN713, CN812,
CN813, CN772, CN773,
amp. board of Lch, Cch, SL/SRch and Rch from the power
amp. board. (See fig.2)
(5) From the top side of the relay board, disconnect the each
amp. board from the connectors CN721, CN821,
and
CN761
on the relay board. (See fig.3)
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CN752
and
CN753
on the each
CN781
Fig.1
Lch amp. board
A
Cch amp. board
CN713
CN813
CN773
CN753
A
Power amp. board
Relay board
Fig.2
Cch amp. board
Lch amp. board
CN721
CN821
CN781
Fig.3
Thermal
compensation
board
Connectors
Thermal
compensation
board
Connectors
CN712
CN812
CN772
CN752
SL/SRch amp. board
Rch amp. board
SL/SRch amp. board
Rch amp. board
CN761
Relay board
(No.MB177)1-13
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