Yamaha RX-V681 Service Manual page 25

RX-V681/RX-A760
When checking the DIGITAL (1) P.C.B.:
• Put the rubber sheet and cloth over this unit, and place the DIGITAL (1) P.C.B. on them. (Fig. 6)
• Connect ST953 on DIGITAL (1) P.C.B. to the chassis with a ground lead. (Fig. 6)
• Reconnect all cables (connectors) that have been disconnected. Be sure to use the P.C.B. CHECKING JIG (Part No.
ZF454800) to connect between the following connectors.
CB945 on DIGITAL (1) P.C.B. – CB381 on OPERATION (4) P.C.B.
• When connecting the flexible flat cable, be careful with polarity.
DIGITAL (1) P.C.B.
P.C.B. CHECKING JIG
ST953
CB948
CB946
OPERATION (4) P.C.B.
CB945
Rubber sheet and cloth
CB381
CB154
CB155
Ground lead
Chassis
Fig. 6
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