Removal Of Rear Unit; When Checking The Dsp P.c.b.; Removal Of Amp Unit - Yamaha DSP-AX2700 Service Manual

RX-V2700/DSP-AX2700

6. Removal of Rear Unit

a. Remove 10 (U, C, T, A, B, G, E models) / 13 (R, L mod-
els) screws (E) and 4 (U, C, R, T, A, B, G, E, L models)
/ 2 (K model) screws (F). (Fig. 5)
b. Remove 4 screws (G), 1 screw (H) and 1 screw (I).
(Fig. 7)
c. Remove CB16-18, CB20, CB303, CB406 and CB407.
(Fig. 7)
d. Remove the rear unit and MAIN (2) P.C.B.. (Fig. 7)
Rear unit
CB303 CB406 CB407
G
MAIN (2)
P.C.B.
G CB20 CB17 CB16

When checking the DSP P.C.B.:

• Put the rubber sheet and the cloth over the equip-
ment. Then place the P.C.B.s upside down on the
cloth and check it. (Fig. 8)
• 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)
• When connecting the flexible flat cable, be careful
with polarity.
• In main unit, the ground of rear unit is connected to the
chassis. When this rear unit are removed from chas-
sis, connect the ground to the chassis, using a ground
lead or such. (Fig. 8)
16
E F
G H I
G
CB18
I
H
Fig. 7
FUNCTION (1) P.C.B.
MF126500
FL (2) P.C.B.
CB970
CB971
MF115500
CB901
CB803

7. Removal of Amp Unit

a. Remove 2 screws (J), 5 screws (K) and 2 screws (L).
(Fig. 9)
b. Remove CB6, CB11, CB15 and CB253. (Fig. 9)
c. Remove the amp unit. (Fig. 9)
K
CB11 CB15
CB6
J
L
Rear unit
DSP P.C.B.
Ground lead
Chassis
Rubber sheet and cloth
Fig. 8
J K L
CB253
K
Amp unit
Fig. 9