Yamaha BD-940 Service Manual page 21

Micro component system mcr-940
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When checking the P.C.B.s:
Spread the rubber sheet and the cloth. Then place the front panel unit and the POWER and MAIN (1) P.C.B.s on the
cloth and check it. (Fig. 5)
Connect the ground point of the front panel unit (W601) and ST1 of the POWER P.C.B. to the chassis or the rear panel
with ground leads or the like. (Fig. 5)
When connecting the flexible flat cable, be careful with polarity.
Reconnect all cables (connectors) that have been disconnected.
Ground lead
W601
Front panel unit
Chassis
Rubber sheet and the cloth
Rubber sheet and the cloth
Fig. 5
BD-940
Ground lead
ST1
POWER P.C.B.
MAIN (1) P.C.B.
21

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