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1、 2000 Mackie Designs Inc. All rights reservedPigggy-Back Control BoardSR-1530 Service ManualSRfilter-1 RadioFans.CN 收音机爱 好者资料库 2000 Mackie Designs Inc. All rights reservedPigggy-Back Control BoardSR-1530 Service ManualSRfilter-2 Top of board (note that connector J3 is only used to help secure this b
2、oard to the main board). Top of board (copper pour layer is shown by dotted lines) Bottom of board (copper pour layer is shown by dotted lines) RadioFans.CN 收音机爱 好者资料库 2000 Mackie Designs Inc. All rights reservedPigggy-Back Control BoardSR-1530 Service ManualSRfilter-3 Carefully use a sharp blade to make sure there are no etching shorts in this region, where the traces are very close. This is the first board and it has through-board holes and components, unlike the surface mount board shown on the previous page. RadioFans.CN 收音机爱 好者资料库