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NAD C 325BEE Service Manual

NAD C 325BEE
37 pages
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NAD
SERVICE MANUAL
C 325BEE
STEREO
AMPLIFIER
C 325BEE
STEREO
AMPLIFIER
1
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NAD C 325BEE Specifications

General IconGeneral
Signal-to-Noise Ratio>95dB
Input Sensitivity200 mV
Damping Factor> 100
Power Output50 W per channel into 8 ohms
Total Harmonic Distortion (THD)< 0.03%
Input Impedance47 k ohms
Dimensions (metric)435 x 100 x 290 mm

Summary

Product Safety Servicing Guidelines

Fire, Shock, and Installation Safety

Covers safety precautions for fire, shock hazards, and proper installation practices.

Safety Checks and Servicing Guidelines

Outlines essential safety checks and general servicing guidelines for user safety.

Servicing Precautions

General Servicing and Insulation Checks

Details general servicing procedures, contact cleaning, and insulation resistance testing.

Electrostatic Sensitive Device Handling

Provides guidelines for safely handling electrostatically sensitive components.

Panel Connections and Controls Overview

Rear Panel Connections Identification

Identifies and describes all rear panel input and output connectors.

Front Panel Controls Identification

Lists and describes the functions of all front panel controls and indicators.

Product Specifications

Power Amplifier Performance Metrics

Details specifications for the power amplifier section, including output power and distortion.

Preamplifier and System Specifications

Preamplifier Input/Output and Control Specs

Covers preamplifier section specifications, control ranges, and IR/trigger functions.

System Dimensions and Weights

Provides physical dimensions and weight information for the unit.

Wiring Diagram

Block Diagram

Microprocessor Connection Diagram

Alignment Procedures

Initial Adjustment Steps (Volume, Current, ISC)

Details the initial calibration steps for volume, idling current, and ISC circuit.

Final Adjustment Steps

Describes the final tuning and calibration procedures after initial adjustments.

Schematics Diagram

Schematics Diagram (1/4)

Amplifier and Protection Circuit Schematics

Shows detailed circuit schematics for amplifier sections and protection circuits.

Schematics Diagram (4/4)

Interface Board Schematics (IR, iPod, Standby, Key)

Presents circuit diagrams for various interface boards like IR, iPod, Standby, and Key.

Schematics Diagram (3/4)

Power Supply Circuit Schematics

Details the circuit diagrams for the power supply unit.

Main Board PCB Layout

Printed Circuit Board Layouts

Power and Module Board Layouts

Shows PCB layouts for the power board and the input/output module boards.

Printed Circuit Board Layouts

Interface and Control Board Layouts

Displays PCB layouts for key, standby, iPod, IR, and headphone interface boards.

Printed Circuit Board Layouts

SMD Amplifier Board Layouts (R & L)

Presents PCB layouts for the surface-mount device (SMD) amplifier modules.

Troubleshooting Guide

Electrical Parts List

Exploded View

Exploded View Parts List

Protect IC Change Procedure

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