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Onkyo TX28 - User Manual

Onkyo TX28
28 pages
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Summary

Specifications

Amplifier Section

Detailed performance metrics for the amplifier.

Tuner Section

Detailed performance metrics for the tuner.

Service Procedures

Replacing Fuses

Guidance on fuse replacement for safety and functionality.

Safety Check Procedures

Essential safety checks before returning the unit.

Exploded View

Parts List

Tuner Section Block Diagram (120 V Model)

Tuner Section Block Diagram (220 V Model)

Amplifier Section Block Diagram

Circuit Descriptions

Synthesizer and Controller Operations

Operation of key control systems.

Muting Circuit Operation

Explanation of the muting circuit's operation.

Adjustment Procedures

FM Section Adjustments

Adjustment steps for the FM tuner section.

AM Section Adjustments

Power Amplifier & Power Supply PC Board Parts List

IC Block Diagrams

Summary

Specifications

Amplifier Section

Detailed performance metrics for the amplifier.

Tuner Section

Detailed performance metrics for the tuner.

Service Procedures

Replacing Fuses

Guidance on fuse replacement for safety and functionality.

Safety Check Procedures

Essential safety checks before returning the unit.

Exploded View

Parts List

Tuner Section Block Diagram (120 V Model)

Tuner Section Block Diagram (220 V Model)

Amplifier Section Block Diagram

Circuit Descriptions

Synthesizer and Controller Operations

Operation of key control systems.

Muting Circuit Operation

Explanation of the muting circuit's operation.

Adjustment Procedures

FM Section Adjustments

Adjustment steps for the FM tuner section.

AM Section Adjustments

Power Amplifier & Power Supply PC Board Parts List

IC Block Diagrams

Onkyo TX28 Specifications

General IconGeneral
Power output40 W per channel (8 ohms, 20 Hz-20 kHz, 0.08% THD)
Frequency response10 Hz-100 kHz (+1 dB, -3 dB)
Total harmonic distortion0.08% (20 Hz-20 kHz, 8 ohms)
Dimensions435 x 120 x 316mm
Weight6.3kg
Input sensitivity150mV (line)
Signal to noise ratio80 dB (line)
Signal-to-Noise Ratio80 dB (line)

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