Yamaha RX-V673 Service Manual page 22

RX-V673/HTR-6065/RX-A720
3. Removal of DIGITAL (1) P.C.B.
a. Remove screw ( ⑥ ) and 7 screws ( ⑦ ). (Fig. 3)
b. Remove 3 screws. ( ⑧ ). (Fig. 2)
c. Remove CB21, CB76, CB81 and CB942. (Fig. 2)
d. Unlock and remove CB78, CB79 and CB944. (Fig. 2)
e. Remove the DIGITAL (1) P.C.B. which is connected
directly to the OPERATION (2) P.C.B. with board-to-
board connectors. (Fig. 2)
Remove CB78, CB79 and CB944
① Unlock the connector
Connected Remove the cable
②
①
Cable
Connect CB78, CB79 and CB944
① Lock the connector
Connected ② Insert the cable
①
Cable
Power transformer
⑫
22
CB21
CB76
CB942
①
②
CB944
CB81
①
⑪
②
⑨
⑫
AMP unit
Fig. 2
⑥ ⑦
⑬
Fig. 3
4. Removal of AMP Unit and Power Transformer
a. Remove screw ( ⑨ ), 3 screws ( ⑩ ), 3 screws ( ⑪ ) and
4 screws ( ⑫ ). (Fig. 2)
b. Remove 3 screws ( ⑬ ). (Fig. 3)
c. Remove the AMP unit together with the power
transformer. (Fig. 2)
⑧
DIGITAL (1) P.C.B.
CB945
CB946
CB948
CB79
CB78
⑩
⑩
Rear view
Board-to-board connectors
Board-to-board connectors
CB459
CB460
⑧
CB461
OPERATION (2) P.C.B.
⑪