(No.22019)1-15
3.2
Power amp. assembly section
3.2.1 Removing the relay board & Rch amp. board & Lch amp. board & Cch amp. board & SL/SRch amp. board
(See Fig.1 to 3)
• Prior to performing the following procedure, remove the power
amp. assembly.
(1) Disconnect the harness from the two connectors on each
thermal compensation board (top side).
(2) Remove the two screws
A
attaching the relay board.
(3) Disconnect the harness from the five connectors on each
thermal compensation board (bottom side).
(4) Pull up each amp. board of Lch, Cch, SL/SRch and Rch
from the power amp. board with the relay board.
(5) Remove each amp. board from the connector
CN721
,
CN821
,
CN781
and
CN761
on the relay board.
Fig.1
Fig.2
Fig.3
Connector
(on the thermal
compensation
board)
top side
SL/SRch amp. board
Rch amp. board
Lch amp. board
Connector
(on the thermal
compensation
board)
Connector
(on the thermal
compensation
board)
Power amp. board
CN713
CN773
CN753
CN712
CN772
CN752
CN813
CN812
Cch amp. board
A
bottom side
Relay board
A
SL/SRch amp. board
Rch amp. board
Lch amp. board
Cch amp. board
CN721
CN821
CN781
CN761
Relay board
