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Onkyo TX-SV444 Service Manual

Onkyo TX-SV444
23 pages
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Onkyo TX-SV444 Specifications

General IconGeneral
Frequency Response20Hz to 30kHz
Input Sensitivity (line)200mV
Signal-to-Noise Ratio (line)100dB
Input sensitivity (MM)2.5mV
Signal to noise ratio (MM)80dB
Dimensions (mm)435 x 150 x 390
Weight (kg)11.3
Signal to Noise Ratio (line)100dB
Speaker Impedance (minimum)8 Ohms
Total Harmonic Distortion0.08%
Power output per channel80W (8 ohms, 1kHz, 0.9% THD)
Speaker load impedance8 ohms
Power Output (Stereo)80 watts per channel

Summary

SAFETY-RELATED COMPONENT WARNING!!

SPECIFICATIONS

AMPLIFIER SECTION SPECIFICATIONS

Detailed technical specifications for the amplifier output, distortion, and frequency response.

VIDEO SECTION SPECIFICATIONS

Technical details regarding video signal sensitivity and impedance for inputs and outputs.

TUNER SECTION SPECIFICATIONS

Performance data for FM and AM tuning, sensitivity, selectivity, and stereo separation.

GENERAL UNIT SPECIFICATIONS

General operational parameters including power supply, consumption, dimensions, and weight.

REMOTE CONTROL SPECIFICATIONS

Technical details of the infrared transmitter's signal range and power.

SERVICE PROCEDURES

FUSE REPLACEMENT PROCEDURE

Guidelines for safely replacing fuses, emphasizing correct type and rating.

UNIT INITIALIZATION PROCEDURE

Steps to reset the microprocessor and restore factory default settings.

POST-SERVICE SAFETY CHECK

Crucial safety checks required after performing repairs.

VOLTAGE SELECTION GUIDE

Instructions for changing the unit's voltage setting for different power supplies.

MEMORY PRESERVATION EXPLANATION

Information on the unit's battery-less memory backup system.

TUNING FREQUENCY STEP SETTINGS

Procedure for setting the AM tuning step frequency based on region.

BAND STEP MODIFICATION

Method for changing band step settings by replacing specific components.

EXPLODED VIEW TX-SV444

PARTS LIST

ADJUSTMENT PROCEDURES

FM ADJUSTMENT GUIDE

Step-by-step instructions for calibrating FM reception parameters.

AM ADJUSTMENT GUIDE

Step-by-step instructions for calibrating AM reception parameters.

SERVICE INFORMATION BULLETIN

CIRCUIT CHANGES FOR IDLING CURRENT

Details on circuit modifications and parts replacements to reduce abnormal idling current.

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