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General| Brand | Harman Kardon |
|---|---|
| Model | HK660 |
| Category | Amplifier |
| Language | English |
Marks used in the parts list to identify HK640/HK660 models and their versions.
Step-by-step instructions for disassembling the unit, including cabinet and various PC boards.
Visual guide and instructions for replacing the power cord.
Functional block diagram illustrating signal flow and main components of the amplifier.
Layout diagrams for PCB-1, PCB-2, and PCB-3.
Layout diagrams for PCB-4, PCB-5, and PCB-6.
Schematic diagram for the infrared remote control system.
Step-by-step instructions for installing the PH600 Phono PCB option.
Wiring diagram specific to the PH600 option.
Schematic diagrams for multiple PC boards including SP SW, Second, CPU, and I/O.
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