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NAD T747 Service Manual

NAD T747
130 pages
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L A U N A M E C I V R E S
AV Surround Sound Receiver
T747
AV Surround Sound Receiver
T747

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NAD T747 Specifications

General IconGeneral
Input Impedance47 kΩ
HDMI Inputs4
HDMI Output1
TunerAM/FM
Total Harmonic Distortion0.08%
Frequency Response20Hz-20kHz
Speaker Impedance4 or 8 Ohms
Audio DecodingDolby Digital, DTS
Video Processing1080p upscaling
Power Output80 watts per channel (8 ohms, 20Hz - 20kHz, 0.08% THD)

Summary

SECTION 1 SUMMARY

PRODUCT SAFETY SERVICING GUIDELINES

Guidelines for safe servicing of the A/V receiver, covering potential hazards.

SERVICING PRECAUTIONS

Precautions to follow before, during, and after servicing the receiver.

SPECIFICATIONS

Technical specifications for the T747 AV Surround Sound Receiver.

DISASSEMBLY

Procedures for disassembling the unit, including top cover and front panel removal.

PRINCIPAL PARTS LOCATION

Identification of major internal components on the chassis.

EXPLODED VIEW PARTS LIST

List of parts with corresponding numbers for exploded view diagrams.

SECTION 2 ELECTRICAL CONTENTS

IC BLOCK DIAGRAMS & PIN DESCRIPTION

Block diagrams and pin descriptions for integrated circuits used in the receiver.

WIRING DIAGRAM

Diagram illustrating the wiring connections between major internal boards.

SCHEMATIC DIAGRAM

Detailed circuit schematics for various sections of the unit.

PRINTED CIRCUIT BOARDS

Layout diagrams for the main circuit boards (TOP and BOTTOM views).

TROUBLESHOOTING

Procedures for diagnosing and resolving common issues.

SPECIAL FUNCTION KEYS

Explanation of special function keys and their remote/front panel operations.

SECTION 3 ELECTRICAL PARTS LIST

RESISTORS AND CAPACITORS

List of resistors and capacitors with part numbers and specifications.

RESISTOR AND CAPACITOR NUMBERING SYSTEMS

Explanation of numbering systems for resistors and capacitors.

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