This teardown is not a repair guide. To repair your Rockford Fosagte P300-12, use our service manual.

Front view
  • Front view

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Remove the 8 coarse thread wood screws and gently pry the plate out
  • Remove the 8 coarse thread wood screws and gently pry the plate out

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  • Carefully remove the 3 knobs and the 1 screw between the 2 10A fuses. then the plastic face should pop off

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  • Crossover / Gain

  • Power Supply and output FET's

  • Power Supply Transformer

  • Output Filters

  • The 2 boards are held together by 4 screws on the edges of the PCB, gently pull them apart, they will only be held together by pin headers. Here you can see the 2 output filters and the power supply step up transformer

  • The board with the FEMALE pin headers is the front board with the plugs on it. the crossover network consists of JRC 4850's

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  • There are 4 of these "GA7E1S" FET's that i cant find any info on. i would assume by looking at the boards that 2 are the power supply and the other 2 are the outputs

  • There are NO heatsinks anywhere in this unit which i find amazing. but the FETS most likely use the massive copper planes on the board as the heatsink

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  • More jelly bean logic around the board

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  • The custom 12" driver. it appears to be a DVC driver, but it just a SVC with 2 pairs of leads going to it

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Участник с: 25.01.2017

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