Marantz SR4320/A1B User Manual

SR4320
Part no. 19AW855012
2nd Issue 2003.12
ecm
Printed in Japan
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
Printed on 100% Recycled Paper
SR4320
SPEAKERS
DISPLAY OFF
STANDBY
PHONES POWER ON/OFF
JOG MODE MUTE SLEEP SPEAKERS S-DIRECT
B
A
CLEAR F/P MODE TUNING/PRESET MEMORY
TUNER CD TAPE PHONO DVD VCR DSS CDR/MD
DOWN
VOLUME
UP
RECEIVER SR4320
MULTI - JOG
Receiver
SR4320 /
A1B/N1B/U1B
/N1G
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ............................................................................ 1
2. WIRING DIAGRAM................................................................................................ 3
3. BLOCK DIAGRAM................................................................................................. 5
4. SCHEMATIC DIAGRAM ........................................................................................ 7
5. PARTS LOCATION .............................................................................................. 11
6. IC DATA................................................................................................................ 21
7. EXPLODED VIEW AND PARTS LIST ................................................................. 25
8. SERVICE PROCEDURE ..................................................................................... 29
9. ELECTRICAL PARTS LIST ................................................................................. 30
2nd EDITION
• The model no.SR4320/N1B/N1G was added in this service manual.

Marantz SR4320/A1B Specifications

General

Power Output	65 W (8 ohms, 20 Hz - 20 kHz, 0.08% THD)
Channels	2
Frequency Response	10Hz - 50kHz
Total Harmonic Distortion	0.08%
Tuning range	FM, MW
Input sensitivity (MM)	2.5 mV
Speaker load impedance	4-16 ohms
Dimensions (mm)	440 x 146 x 389 mm
Weight (kg)	10.5 kg
Input Sensitivity	200 mV
Signal to noise ratio (MM)	80 dB

Summary

Marantz Design and Service

Ordering Marantz Parts

Information on how to order Marantz replacement parts.

Service Safety Test Procedures

Safety checks required before returning the unit to the customer.

Technical Specifications

FM Tuner Specifications

Technical specifications for the FM tuner.

AM Tuner Specifications

Technical specifications for the AM tuner.

Audio Section Specifications

Technical specifications for the audio amplifier section.

General Specifications and Accessories

Includes power supply, dimensions, and included accessories.

Wiring Diagram

Block Diagram

Schematic Diagram

Parts Location

Circuit Board Component Layouts

Visual layout of components on various circuit boards.

IC Data

IC22 TC9164AF Block Diagram

Block diagram for IC22 (TC9164AF).

IC23 TC9163AF Block Diagram

Block diagram for IC23 (TC9163AF).

IC71 NJM2279 Block Diagram

Block diagram for IC71 (NJM2279).

Exploded View and Parts List

Service Procedure

Tuner Alignment Instructions

Instructions for performing tuner alignment procedures.

Alignment Equipment Requirements

List of required test equipment for alignment.

Tuner Alignment Procedure Steps

Step-by-step procedure for alignment.