Yamaha RX-V750 Service Manual page 24

RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
6. Operation check of MAIN (2) P.C.B.
i
a. Remove 1 screw (
!2
b. Remove 3 screws (
!3
c. Remove 1 screw (
d. Loosen the harness fixture fixing the cable.
e. Holding the rear panel, raise the MAIN (2) P.C.B. so that
its bottom face can be seen. (Fig. 17)
f. Put an insulating sheet under the P.C.B. before perform-
ing any checks for proper operation.
When checking the P.C.B.:
• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flat cable, use care for the polarity.
• The P.C.B. removed from the rear panel does not work because
its grounding is loose. Be sure to connect the ground of each
P.C.B. to the chassis or GND with a jumper wire or the like.
12
24
). (Fig. 9)
). (Fig. 15)
!4
) and 1 screw ( ). (Fig. 16)
12 12
Fig. 15
i
!2
!3 !4
13
Fig. 17
14
Fig. 16