Pioneer MA-990 Service Manual page 10

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MA-990
4. PCB CONNECTION DIAGRAM
4.1 MAIN BOARD ASSY
IC401 Ic602
1C404 IC606 IC605 1C003 Icoo2 1C001 IC004
1C405 Q402 Q401 Q001 Q002 Q003
FEYMAIN BOARD ASSY
BD) CN321 8 12. 11-10
To POWER TRANSFORMER
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