Yamaha RX-V683, Руководство по обслуживанию

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RX-V683/RX-A770
RX-V683/RX-A770
DIGITAL (1) P.C.B.
CB76
CB942
CB944
CB79
CB78
CB80
CB946
CB948
CB949
CB382
OPERATION (15) P.C.B.
AMP unit
Power transformer
Board-to-board connectors
CB945
Board-to-board connectors
7
8
9
7
A
A
>
>
① ①
②
Cable
Remove CB946 and CB948
①
②
Unlock the connector
Remove the cable
Connected
① ①
②
Cable
Connect CB946 and CB948
①
②
Lock the connector
Insert the cable
Connected
4. Removal of DIGITAL P.C.B.
a. Remove screw (
5
) and 6 screws (
6
). (Fig. 5 )
b. Remove 3 screws (
7
). (Fig. 4 )
c. Remove CB76, CB78, CB7 9 , CB80, CB 94 2, CB 944 and CB 949 . (Fig. 4 )
d. Unlock and remove CB 94 6 and CB 94 8. (Fig. 4 )
e. Remove the DIGITAL (1) P.C.B. which is connected directly to the OPERATION (1 5 ) P.C.B. with board-to-board
connectors. (Fig. 4 )
5. Removal of AMP Unit and Power Transformer
a. Remove screw (
8
), 2 screws (
9
) 3 screws (
j
) and 4 screws (
k
). (Fig. 4 )
b. Remove 3 screws (
l
). (Fig. 5 )
c. Remove the AMP unit together with the power transformer. (Fig. 4 )
Fig. 4
B
5 6
Fig. 5
RX-V683