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Technics SU-C01 User Manual

Technics SU-C01
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Stereo Preamplifier
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Technics SU-C01 Specifications

General IconGeneral
TypeStereo Integrated Amplifier
Power Output30 watts per channel into 8Ω (stereo)
Frequency Response20Hz to 20kHz
Total Harmonic Distortion0.03%
Input sensitivity2.5mV (MM), 150mV (line)
Channel separation55dB (line)
Dimensions297 x 49.6 x 210.5mm
Weight3.2kg
Input Impedance50kΩ
Speaker load impedance4Ω to 16Ω

Summary

Before Using This Unit

Voltage Selector Adjustment

Adjust the voltage selector on the rear panel to the correct setting for your area to prevent damage.

Regional Safety Information

United Kingdom Mains Lead Wiring

Instructions for connecting the mains lead wires (blue to neutral, brown to live) according to UK standards.

Australian Power Supply Safety

Ensures safe operation by using a properly earthed three-pin plug and extension cords.

Long and Safe Unit Operation

AC Power Source Usage

Use standard household AC power sources; avoid high voltage sources or DC sources.

Power Cord Connection and Disconnection

Handle power cord plugs with dry hands, grasp the plug, not the cord, to avoid electric shock.

Rear Panel AC Outlets Usage

Use rear AC outlets only for audio equipment with specified power consumption; avoid high-power appliances.

Prohibition of Self-Repair

Do not attempt to repair or reconstruct the unit yourself to avoid electric shock or damage.

Safety for Children

Prevent children from inserting objects into the unit to avoid electric shock or malfunction.

Power Off After Use

Turn off the unit when not in use to prolong its life and prevent unexpected trouble.

Water Spill Precautions

Immediately disconnect power if water spills on the unit; consult dealer due to fire/shock risk.

Ventilation and Sunlight Placement

Ensure adequate ventilation and keep the unit away from direct sunlight to prevent overheating.

Proximity to Heat Sources

Keep the unit away from stoves and other heat sources to prevent damage to surfaces and components.

Avoid Spray Insecticides

Avoid spray insecticides as they can cause damage or ignitable gas buildup on the unit.

Avoid Solvents for Cleaning

Never use alcohol or paint thinner for cleaning as they can damage the unit's finish.

Troubleshooting and Maintenance

Immediate Actions for Malfunctions

Disconnect power immediately if sound is interrupted, indicator fails, or abnormal odor/smoke is detected.

External Surface Maintenance

Clean with a soft, dry cloth or a detergent-dampened cloth; avoid chemicals that damage the finish.

Raising the Front Unit

The front of the unit can be raised for easier operation using the feet at the front left and right.

Front Panel Controls and Functions

Power Stand-by On/Off Switch

Controls the secondary circuit; primary circuit remains live when plugged in.

Tone Controls (Bass & Treble)

Adjusts bass and treble frequencies; 'defeat' position provides flat frequency response.

High-Filter Switch

Eliminates high-frequency noises like scratch or hiss from discs and tapes.

Subsonic Filter Switch

Eliminates ultra-low-frequency noises such as rumble from warped discs or motor noise.

Loudness Switch

Compensates for reduced low-frequency hearing at low volume levels for dynamic sound.

Input Selector

Selects sound sources like disc, radio broadcasts, or auxiliary equipment.

Tape Monitor Switch

Listens to source or playback from tape deck; used for recording monitoring with 3-head decks.

Volume Control

Adjusts the overall listening volume for the unit.

Balance Control

Adjusts the sound balance between left and right speakers, or for monaural broadcasts.

Recording Operations

Recording Preparation

Connect recording-output terminals to tape deck; recording level is unaffected by other controls.

Recording Procedure Steps

Begin performance playback and adjust recording level on the tape deck to start recording.

Troubleshooting Guide

Troubleshooting During Disc Play

Addresses issues like unusual sounds, scratching noises, or lack of clarity during disc playback.

Troubleshooting FM Broadcasts

Covers problems with FM stereo reception, hissing, distortion, and indicator flickering.

Troubleshooting AM Broadcasts

Addresses issues like ignition noise, hissing, or humming during AM broadcasts.

General Troubleshooting

Covers persistent issues like power amplifier status, no sound, reversed stereo, hum, or no sound from one speaker.

Technical Specifications

Amplifier Section Specifications

Details harmonic distortion, input sensitivity, impedance, S/N ratio, and frequency response.

General Specifications

Includes power consumption, power supply voltage, dimensions, and weight of the unit.

Included Accessories

Stereo Pin-Type Connection Cord

Details the included stereo pin-type connection cord.

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