Yamaha RX-V681 Service Manual page 21

RX-V681/RX-A760
When checking the MAIN (1) P.C.B.:
• Place the P.C.B.s (with rear panel) upright. (Fig. 7)
• Connect the heatsink and rear panel to the chassis with a ground lead or the like. (Fig. 7)
• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flexible flat cable, be careful with polarity.
Rear panel
Ground lead
Chassis
Ground lead
Rubber sheet and cloth
Heatsink
Fig. 7
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