Infinity IL60 L/R service manual

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IL60

8)Connect the subwoofer amplifier to an AC power source; turn the unit ON. Measure the DC voltage at the “CD±” wires; it should be 10-20 volts.

9)If it is 25 volts or greater, turn the amplifier OFF, disconnect from the power source, and replace: IL120S, IL60: Q504,Q507 IRF640 on the Power Supply PCB, Infinity part# QM0015.

IL50, IL100s: Q1 IRF540 on the Power Supply PCB, Infinity part# QM0020.

10)If the voltage is normal, turn the amplifier OFF, disconnect from the power source, and reconnect the “CD±” leads.

11)Finish reassembling the amplifier, remount the heatsink, replace the amplifier in the cabinet and test the subwoofer.

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Contents IL60 L/R IL60 IL60 L/R Specifications WeightIL60 L/R Detailed Specifications IL60 L/R Detailed Specifications IL60 L/R Controls and Connections System Type IL60 L/R Final Positioning IL60 L/R Operation/Bass Optimization SystemTM IL60 L/R Bass Optimization SystemTM IL60 L/R Mechanical Parts List PackagingIL60 L/R Exploded View RotatedIL60 L/R Exploded View of Amplifier IL60 L/R Service Tips IL60 L/R Test Set Up and Procedure System Aural Sweep TestIL60 Service Bulletin IRF740 Mosfets Q403,404,406,407 IL60 Tech Tips Packaging Volume Left/Right Boards EMI FILTER/RABOS PCBs IL 500W Linear/Feature Boards 500W HC Bash Power Supply 120V/230V Selectable IL60 Electrical Parts List Part# Reference Designator Qty DescriptionPCB, Rabos Board PCB, Power Supply 500W 230V/120V PCB, EMI Filter board PCB, VOLUME-LED Interlude Left CUP, Pcba Bucket C/W Gasket Feature Board Integrated Circuit Diagrams Wiring Diagram/Crossover Network Wiring DiagramIL60 IL60 IL60 IL60 IL60 IL60