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NAD T 761 User Manual

NAD T 761
70 pages
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NAD
SERVICE MANUAL
T 761
SURROUND
SOUND RECEIVER
T 761
SURROUND
SOUND RECEIVER
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NAD T 761 Specifications

General IconGeneral
Power Output100 watts per channel (8 ohms)
Total Harmonic Distortion< 0.05%
Input Sensitivity200 mV
Signal-to-Noise Ratio> 100 dB
Dimensions17.1 x 14.2 x 6.3 inches
Weight24.2 lbs
Input Impedance47 kOhms
Tuner BandsAM/FM
Surround System ClassDolby Digital, DTS
Digital Sound Processor (DSP)Yes
Bass ControlYes
Treble ControlYes
HDMI SwitchingNo
Damping Factor> 100
Speaker Impedance4-8 ohms
Frequency Response20 Hz - 20 kHz
DSP PresetsMultiple presets

Summary

Service Manual

Product Safety Servicing Guidelines

Fire & Shock Hazard Precautions

Precautions to prevent fire and shock hazards during servicing.

Proper Installation Tips

Recommendations for safe and effective product installation.

Servicing Precautions

General Servicing Safety

Essential safety guidelines to follow before and during servicing.

Insulation Checking Procedure

Step-by-step procedure for checking insulation resistance.

Handling Electrostatic Sensitive Devices

Precautions for handling sensitive electronic components to prevent damage.

Service Safety Precautions

Fuse Replacement Guidelines

Guidelines and part numbers for replacing fuses safely.

Safety Checkout Procedure

Final safety checks before returning the product to the customer.

Specifications - Power & Surround

Power Amplifier & Preamplifier Specs

Specifications for power output, distortion, sensitivity, and S/N ratio.

Surround Section Specifications

Specifications for surround channel separation and frequency response.

Specifications - Tuner & Physical

AM Tuner Section Specifications

Technical specifications for the AM tuner performance.

FM Tuner Section Specifications

Technical specifications for the FM tuner performance.

Panel Layout and Controls

Rear Panel Connections

Labeled diagram and description of rear panel connections and features.

Front Panel Controls

Labeled diagram and description of front panel controls and indicators.

Disassembly Instructions

Figure No.1: Panel Screw Locations

Illustration showing screw locations for panel removal.

Figure No.2: Top Cover Removal

Illustration showing top cover removal procedure.

Wiring Diagram

Wiring Diagram Notes

Key to understanding wiring diagram symbols.

Block Diagrams and Adjustment Points

Block Diagram Overview

Functional block diagram illustrating signal flow and main components.

Adjustment Points Diagrams

Diagrams indicating adjustment points on Tuner and Amplifier boards.

Instrument Setup and Alignment Procedures

Measurement Instrument Setup

Required test equipment setup for measurements and adjustments.

Amplifier Section Alignment

Step-by-step procedures for aligning the amplifier section's idle current.

Alignment Procedures - FM/AM

FM/RDS Section Alignment

Alignment steps for FM mono, stereo, distortion, separation, and RDS.

AM Section Alignment

Alignment steps for AM modulation and tuning.

Important Operational Notes

PCB Layout Diagrams

Speaker, Primary, Secondary Boards

Component layout for Speaker, Primary, and Secondary PCBs.

PCB Layout Diagrams (Continued)

Digital In, Digital Out, S-Video Boards

Component layout for Digital In, Digital Out, and S-Video Boards.

PSU & Component Video Boards

Component layout for PSU and Component Video Boards.

Video 5, Load, Volume Boards

Component layout for Video 5, Load, and Volume Boards.

Surround Amp & AC3 Boards

Component layout for Surround Amp and AC3 Boards.

AC3 Board Solder Side Layout

Component layout for the AC3 Board (Solder Side).

Front Amp Board Layout

Component layout for the Front Amp Board.

PCB Layout & Schematic Diagrams

Schematic Diagrams (Continued)

IC Block Diagrams

IC Block Diagrams (Continued)

Exploded View Parts List

Exploded View Parts List (Continued)

Service Manual - NAD Electronics International

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