Yamaha R S300, Руководство по обслуживанию

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13
R-S300
R-S30
0
S u b-chassis u nit
R u bber sheet and cloth
Gro u nd lead
Chassis cover
R u bber sheet and cloth
⑫
⑫
⑫
MAIN (1) P.C.B.
Fig. 4
When checking the P.C.B.s:
• Put the rubber sheet and cloth over this unit. Then place the sub-chassis unit on the cloth and check it. (Fig. 4)
• Connect the ground point of the sub-chassis unit to the chassis with a ground lead or the like. (Fig. 4)
• Reconnect all cables (connectors) that have been disconnected.
• When connecting the flexible flat cable, be careful with polarity.
When checking the MAIN (1) P.C.B.:
• Spread the rubber sheet and the cloth. Then place this unit on the cloth upside down. (Fig. 5)
• Remove 6 screws (
⑫ ) and then remove the chassis cover. (Fig. 5)
Fig. 5