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NAD T 753 Service Manual

NAD T 753
80 pages
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NAD
SERVICE MANUAL
T 753
T 753
Surround Sound Receiver
(
Surround Sound Receiver
DRAFT DATE: 9 MAR 2006
PHASE II

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NAD T 753 Specifications

General IconGeneral
Channels7.1
Total Harmonic Distortion0.05%
Input Impedance47 kOhms
THD0.05%
Input Sensitivity200 mV
Tuner BandsAM/FM
Surround System ClassDolby Digital, DTS
Digital Sound Processor (DSP)Yes
DSP PresetsMultiple
HDMINo
Frequency Response20 Hz - 20 kHz
Speaker Impedance4 - 8 ohms
Signal-To-Noise Ratio100 dB

Summary

Service Manual T753

Safety Information

Service Safety Precautions

Replacing the Fuses

Details on replacing fuses, emphasizing correct type for safety.

Safety Check Out

Procedures to ensure user safety before returning the unit.

Specifications

Power Amplifier Section

Technical specifications for the power amplifier.

Dolby Digital Section

Technical specifications for Dolby Digital audio processing.

Dolby Pro Logic II Section

Technical specifications for Dolby Pro Logic II audio processing.

Specifications (Continued)

DTS Section

Technical specifications for DTS audio processing.

FM Tuner Section

Technical specifications for the FM tuner.

Physical Specifications

Dimensions and weight of the unit.

Rear Panel / Front Panel View

Disassembly Instructions

Wiring Diagram

Block Diagram

Adjustment Point Diagram

Amplifier Adjustment

Procedures for adjusting amplifier settings like idle current and sensitivity.

PCB Layout

Power Supply (Standby) Board

Component layout for the power supply board.

Audio Board

Component layout for the audio board.

PCB Layout (Continued)

Digital Board

Component layout for the digital board.

Component Video Board

Component layout for the component video board.

PCB Layout (Continued)

DSP Board

Component layout for the DSP board.

PCB Layout (Continued)

Front / Center Amplifier Board

Component layout for the front and center amplifier board.

PCB Layout (Continued)

Surround Amplifier Board

Component layout for the surround amplifier board.

Schematic Diagram

Audio Switch

Schematic for the audio input switching circuitry.

Component Video

Schematic for the component video processing circuits.

Schematic Diagram (Continued)

Power Supply (Secondary)

Schematic for the secondary power supply section.

Trigger

Schematic for the trigger and IR control circuits.

Speaker A & B Connections

Pre-Out

Digital Input / Output

IC Block Diagram

Key DSP ICs (CS49326, CS4340)

Block diagrams for major DSP and audio processing ICs.

Exploded View

Electrical Parts List

Capacitors

List of capacitor types and part numbers used in the unit.

Transistors

List of transistor types and part numbers used in the unit.

Packing Diagram & Parts List

Version History

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