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General| Brand | Hitachi |
|---|---|
| Model | HGE 2100 |
| Category | Stereo Equalizer |
| Language | English |
Essential safety guidelines for servicing the equipment, emphasizing genuine parts and thorough testing.
Detailed technical parameters of the HGE-2100 graphic equalizer, including audio and power specifications.
Highlights the equalizer's 9-band octave division, dynamic range inductors, electronic echo circuit, and convenient controls.
Instructions and diagrams for removing printed wiring boards during disassembly, including screw specifications.
Procedure to adjust R585 for eliminating BBD output clock elements, referencing oscilloscope waveforms.
Visual representation of the HGE-2100's internal circuit connectivity and signal flow.
Method to measure insulation resistance between power supply plug and input terminal to ensure safety before customer return.
Diagram illustrating the component layout on the printed wiring boards.
Comprehensive schematic showing the electronic components and their interconnections within the HGE-2100.
Detailed schematic breakdown of specific functional blocks like MIC AMP, REVERB, and EQUALIZER circuits.
Schematic details for the power supply, muting circuit, and output filtering stages.
List of replacement capacitors with part numbers, descriptions, and specifications.
List of replacement resistors with part numbers, descriptions, and specifications.
Continuation of the replacement resistor list with part numbers and specifications.
List of integrated circuits and transistors with part numbers and descriptions.
Replacement parts list for diodes and variable resistors, including part numbers.
List of miscellaneous parts like switches, jacks, fuses, and power switches.
Parts related to the final assembly, such as escutcheons, covers, and screws.
Replacement parts for the dial mechanism, including sub panels, buttons, legs, and screws.
Parts for rear plate assembly (plates, cords, outlets) and accessories like patch cords.
Identification and description of front panel controls, switches, and input/output jacks.
Identification and description of rear panel connectors, power cord, and voltage selector.
