This Marantz 4230 Quad receiver has been fully serviced, and recapped. Boards recapped are pictured. Main Power Filtering cap was replaced. DC balanced on oscilloscope and bias adjusted to factory spec on all 4 modules.
This Marantz 4230 Quad receiver has been fully serviced, and recapped. Boards recapped are pictured. Main Power Filtering cap was replaced. DC balanced on oscilloscope and bias adjusted to factory spec on all 4 modules.