When Checking The Amp Unit - Yamaha DSP-AX2700 Service Manual

When checking the Amp Unit:

• Place the sub chassis unit on top of the rubber sheet
and cloth. (Fig. 10)
• Put the amp unit together with the heat sink upright
and check them. (Fig. 10)
• Reconnect all cables (connectors) that have been dis-
connected. Use the extension cable before servicing
the following section.
FL (1) P.C.B. CB901_FL (2) P.C.B. CB970:
MF126500 (26P, 500mm)
FL (2) P.C.B. CB971_OPERATION (2) P.C.B. CB803:
MF115500 (15P, 500mm)
FL (1) P.C.B. W9001 _ POWER (1) P.C.B. CB12:
MF405400 (5P, 400mm)
• When connecting the flexible flat cable, be careful
with polarity.
• In main unit, the ground of sub chassis unit and amp
unit is connected to the chassis. When this sub chas-
sis unit and amp unit are removed from chassis, con-
nect the ground to the chassis, using a ground lead or
such. (Fig. 10)
Ground lead
POWER (1) P.C.B.
MAIN (1) P.C.B.
Sub chassis unit
Rubber sheet and cloth
W9001
FL (1) P.C.B.
MF405400
CB12
CB901
OPERATION (2) P.C.B.
Fig. 10
Amp unit
Cloth
CB970
MF126500
MF115500
CB803
RX-V2700/DSP-AX2700
Ground lead
Chassis
FL (2) P.C.B.
CB971
17