Marantz 2230 User Manual

Section for recording purchase details and warranty information.

Introduction to the manual, its structure, and how to use it.

Instructions for inspecting the unit after delivery and handling shipping damage.

Details on input and output jacks on the rear panel for system integration.

Connecting turntables and troubleshooting phono hum with proper grounding.

Explanation of TAPE IN and TAPE OUT jacks for tape recorder connectivity.

Description of AUX input jacks for various external audio sources.

Information on the QUADRADIAL jack for 4-channel adaptors or white noise generation.

Explanation of using the unit as a separate preamplifier or power amplifier.

Instructions for connecting speakers to MAIN and REMOTE terminals.

Guidance on ensuring correct polarity and phasing for stereo speaker pairs.

Details on connecting different types of FM antennas (300-ohm, 75-ohm).

Instructions for using the built-in ferrite-rod antenna and external AM antennas.

Explanation of the ANTENNA ATTENUATOR switch for signal overload conditions.

Information on the universal power transformer and AC outlet connection.

Step-by-step guide for initial setup and basic operation.

How to use the SIGNAL STRENGTH meter and tune AM/FM stations.

Function of the MONO pushswitch for converting signals to monophonic.

Use of the TAPE MONITOR switch for listening to recorded signals.

Explains Loudness, Low Filter, and Hi Filter switches for audio adjustment.

How the MUTING switch eliminates interstation noise during FM tuning.

How to select program sources like AM, FM, TAPE, AUX, PHONO.

Adjusting audio level between channels and overall listening volume.

Adjusting the tonal balance (bass, mid, treble) of the audio output.

Selecting which speaker outputs are active (MAIN, REMOTE, or both).

Details on DUBBING OUT, DUBBING IN, and STEREOPHONES jacks.

Guidance on connecting and using tape recorders with the receiver.

Step-by-step instructions for recording and playing tapes.

Instructions for connecting and using two tape recorders at once.

Method for continuous recording using two tape recorders.

How to copy and edit audio between two tape recorders.

Overview of the Model 2230's functional elements and signal routing.

Detailed explanation of the FM and AM front-end circuits and components.

Technical details on the intermediate frequency stages and limiter circuit.

Explanation of the FM multiplex stereo demodulator circuit and auto-switching.

Technical description of the FM muting circuit for noise-free tuning.

Technical aspects of the AM tuner and the function of the selector switch.

Technical explanation of tape input routing and the tape monitor switch.

Technical details on phono input handling and mono conversion.

Explanation of control circuits including balance, volume, and tone controls.

Details on tone amplifier, filters, and general specifications (power, dimensions, weight).

Guidelines for qualified technicians and how to contact Marantz for service.

How to properly pack the receiver for shipping, including cautions.