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Diagram illustrating the front panel controls and indicators for the PMA-720.
Diagram illustrating the front panel controls and indicators for the PMA-520.
Diagram identifying all input and output terminals on the rear panel.
Instructions on how to connect speaker systems to the amplifier.
Illustrates connections for record players, CD players, tape decks, etc.
Controls the unit's power and indicator lights.
Selects the audio source signal for playback.
Adjusts the overall sound volume level.
Manages tape recording and playback monitoring.
Connector for plugging in headphones for private listening.
Selects speaker systems A, B, or both for audio output.
Adjusts the low-frequency audio characteristics.
Adjusts the sound's tone quality, including treble.
Adjusts the high-frequency audio characteristics.
Selects audio sources, including CD DIRECT mode.
Enhances low and high frequencies at low volume levels.
Selects the appropriate setting for MC or MM phono cartridges.
Adjusts the sound balance between left and right channels.
Steps for checking connections and setting initial controls.
Instructions for playing vinyl records using the turntable input.
How to play audio from a CD player.
Steps for tuning and listening to radio broadcasts.
Using the CD DIRECT mode for pure audio signal path.
Connecting external audio devices to AUX-1 and AUX-2 inputs.
How to play audio from a connected tape deck.
Instructions for recording audio onto a tape deck.
Guidance on speaker impedance for proper operation.
Explanation of the amplifier's protective circuit and how it functions.
Technical data for the power amplifier, including output and distortion.
Technical data for the pre-amplifier, including input sensitivity and RIAA deviation.
Overall performance metrics like signal-to-noise ratio and tone control range.
Details on power supply, consumption, dimensions, and net weight.
List of international service centers for follow-up consultations and repairs.