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General| Brand | EMI |
|---|---|
| Model | TG 12345 Mk.II |
| Category | Music Mixer |
| Language | English |
Defines key terms and drawing number conventions used in the handbook.
References block schematic and top panel layout drawings for the mixer.
Details the physical components of the mixer, including cassettes, frames, and power units.
Describes the electrical aspects, active units, mixing, power supply, and RF rejection.
Describes the two identical channels within the microphone cassette.
Details the 5-pin Tuchel socket used for microphone inputs.
Explains the provision for 50V phantom powering for condenser microphones.
Covers coarse and fine gain controls, input levels, and test inputs.
Details the signal flow including band pass filter, compressor/limiter, and inject.
Describes the function to isolate and monitor a single channel.
Explains the provision and routing of cue signals.
Details echo send level controls and echo bus line routing.
Lists the contents of the Group Cassette.
Describes the input gain control and overall function of a group channel.
Lists the contents of the Main Cassette.
Details input gain, fader, poling, and presence controls for the main channel.
Explains how main channels feed into cue circuits.
Describes the auxiliary stereo channel and bus lines.
Details meter connections, amplifier, and meter selector functions.
Specifies the power supply unit used in the Main Cassette.
Describes the cassette's role in routing replay outputs and monitoring.
Explains the re-record selector switches and attenuators.
Details tape machine selection and amplifier circuits for monitor channels.
Describes echo send and echo return functionalities.
Specifies the power supply unit for the Track Monitor Cassette.
Overview of record/replay switching and control functions.
Details input selectors, amplifiers, level controls, and pole functions.
Explains tape replay selection and record/replay follow/replay keys.
Describes the correlator switch and its function.
Details synchronous replay inputs and routing to cue circuits.
Describes the cue output circuits.
Explains how cue signals are made available to loudspeakers.
Details the metering switch and V.U. meter connections.
Describes the buzzer and red light push buttons.
Specifies the power supply unit used in the cassette.
Overview of signal selection, talkback, and oscillator functions.
Details input selectors, level controls, and pole facility.
Explains operator and artist manager talkback, gain, and mixing.
Describes operator to cue and artist manager to cue signal routing.
Details track announce signals and switching for separate and multi-track.
Describes oscillator frequencies, level, distribution, and tape machine test.
Explains metering functionality for observing levels.
Specifies the power supply unit used in the cassette.
Details the available frame sizes and cassette capacity.
Specifies the number of cassettes needed for different configurations.
Describes the physical construction and materials of the frame.
Details the main and power cable forms used for interconnections.
Describes the main power unit's role and input specifications.
Details the features and specifications of the AC voltage regulator.
Explains the 50V AC supply provided by the step-down transformer.
Describes the power supply circuit for relays.
Explains how the buzzer is activated.
Explains how the red light is activated.
Details the supply for condenser microphone head amplifiers.
Describes the meters used to monitor power supply parameters.
Describes the Presence circuit, its components, and operation.
Details the Bass control circuit, including components and operation.
Describes the three types of Amplifier A and their circuit configurations.
Details the two versions of Amplifier C and their circuit descriptions.
Explains the purpose, circuit, and output of Amplifier Type E.
Describes the two-fold purpose of the Band Pass Filter circuit.
Details the Limiter circuit, its compressor/limiter modes, and operation.
Describes the line output amplifier Type R, its circuit, and purpose.
Explains the correlator's purpose, circuit, and operation.
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