EasyManua.ls Logo

Onkyo P-304 User Manual

Onkyo P-304
10 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image

Other manuals for Onkyo P-304

Question and Answer IconNeed help?

Do you have a question about the Onkyo P-304 and is the answer not in the manual?

Onkyo P-304 Specifications

General IconGeneral
TypeStereo Preamplifier
Signal-to-Noise Ratio110dB (IHF-A)
Dimensions435 x 85 x 309 mm
Input Sensitivity150mV
Input Impedance50kΩ

Summary

Important Safeguards

General Safety Instructions

Read, retain, heed, and follow all operating and safety instructions for safe use.

Placement and Environmental Precautions

Proper placement regarding water, heat, ventilation, and power sources for safe operation.

Maintenance and Service Precautions

Instructions on grounding, cord protection, cleaning, and non-use periods.

Critical Warnings & Cautions

Important warnings about risk of shock, fire, and servicing requirements.

Care Instructions

Instructions for cleaning the appliance's exterior panels with appropriate materials.

Front Panel Controls

Power Switch

Turns the unit on/off; orange band lights when powered on.

Recording Indicator

Lights when the recording output switch is pressed for record/dubbing mode.

Output Switch and Indicator

Turns output off (green band lights when ON); use for headphones or muting.

Input Selector Switches

Selects desired program source; previously depressed switch comes up.

Volume Control

Adjusts volume level clockwise; marked in decibels for output/headphone.

Headphone Jack

Insert stereo headphone plug here and adjust volume.

Recording Output Switch

Press to ON for recording/dubbing; indicator lights for signal to REC terminals.

Recording Source Selectors

Selects program sources for recording/dubbing from tape decks 1 and 2.

Bass Control

Emphasizes or attenuates bass by turning left or right of DEFEAT mark.

Treble Control

Emphasizes or attenuates treble; acts as high cut filter when fully left.

Balance Control

Adjusts relative volume levels of the left and right channels.

Mode Switches

Changes output signal from stereo to mono.

Cartridge Selector Switch

Selects between MC and MM cartridges for turntables.

System Connections and Rear Panel Facilities

Component Connection Guidelines

Read component manuals, confirm cable connections, secure plugs, handle cables carefully.

Ground Connection

Turntable ground lead connection to amplifier GND terminal.

Cable Routing

Keep pin-type cables away from power cords to prevent hum.

AC Outlet Usage

Rear AC outlets for audio components, not for high-heat appliances.

Unswitched AC Outlet

Outlet with 200W max capacity, not switched by front panel power.

Switched AC Outlets

Outlets with 700W max capacity, switched by front panel power.

Connection Diagram

Component Wiring

Diagram illustrating connections for CD player, turntable, tuner, and tape decks.

Power Amplifier Connection

Shows connection from P-304 to a power amplifier.

Speaker Connection

Shows connection of Left (L) and Right (R) speakers.

AC Power Connection

Connects the unit to AC power supply cord.

Voltage Selector and AC Outlets

Note on setting voltage selector and output from AC outlets.

Pre-Operation Check

Do not plug in power cord until all connections are completed and checked.

Operations

Normal Standby Mode

Initial settings for front panel controls before operating.

Using Tape Decks - Playback

How to select and listen to tape decks connected to TAPE-1 and TAPE-2.

Using Tape Decks - Recording

Steps for setting recording source, output, and level.

Tape-to-Tape Duplicating

Procedure for dubbing tapes from one deck to another.

Equalizer and Mixing Console Connections

Connecting external devices to TAPE terminals for signal routing.

Routing Playback Through Equalizer

Connecting decks and equalizers to TAPE terminals for signal processing.

Advanced Operations

Recording Through Equalizer

Connecting tape deck and equalizer to TAPE terminals for recording.

Tape Dubbing with Equalizer

Note on dubbing between decks via equalizer using LINE terminals.

Variable Bass and Treble Boosting System

How tone control effects gradually reduce with volume increase.

Connection Diagram for Selectors

Diagram showing input, tape, and recording selector connections.

Trouble-Shooting Guide

No Power

Check power cord connection to the wall socket.

No Sound When Power Is Switched On

Check power amplifier, speakers, and input/output cable connections.

Hum, Howling, or Unwanted Noise

Check ground lines, cables, speaker placement, and power transmitter proximity.

Low Level Output When Playing Records

Verify cartridge selector setting (MC vs. MM) matches the cartridge type.

Specifications

Input Sensitivity and Impedance

Details input sensitivity and impedance for various input types.

Rated Output and Impedance

Specifies rated output levels and impedance for TAPE REC and OUTPUT.

Frequency Response

Frequency response characteristics for CD, TUNER, LINE, and TAPE inputs.

Phono Overload

Maximum overload levels for PHONO MM and MC inputs.

Total Harmonic Distortion

THD specifications for PHONO MM, PHONO MC, and other inputs.

Intermodulation Distortion

IM distortion levels for CD, TUNER, LINE, and TAPE inputs.

Signal-to-Noise Ratio

SNR specifications for PHONO MC, PHONO MM, and CD inputs.

Tone Control

Specifications for Bass and Treble control ranges.

Filters

Details for HIGH CUT filter specifications.

Inputs and Outputs

Lists available input and output terminals.

Power Supply

Power supply voltage and frequency details for USA and worldwide models.

Dimensions and Weight

Physical dimensions and weight of the unit.

Related product manuals