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Marantz SR7300 Service Manual

Marantz SR7300
63 pages
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AV SURROUND RECEIVER SR7300
UP
SURROUND
VOLUME
DOWN
MEMORY
TUNING
MODE
F/P
CLEAR
S-DIRECT MULTIROOM
MUTE
A/D7.1CH INPUTSPEAKRS A/B
POWER ON/STANDBY
PHONES
ENTER
STANDBY
AUX1 INPUT
S-VIDEODIGITAL VIDEO L AUDIO R
DSS/VCR2
AUX1 AUX2
VCR1
DVD
TV
CD
CD-R
TAPE
TUNER
ATT
SELECT
DISP MULTI AUTO TUNED ST V
OFF NIGHT PEAK ANALOG
DIGITAL
ATT
SLEEP
SURR
AUTO
DIRECT DISC 6.1 MTX 6.1 SPKR AB EQ
DIGITAL
SURROUND
PCM
L
C
R
SL S SR
LFE
AV Surround Receiver
SR7300 / SR7300OSE / PS7300
03AJ855010 MIT
First Issue 2002.11
SR7300 /
N1B/U1B/K1G/N1G/U1G
SR7300F /
N1B/U1B/K1G/N1G/U1G
R
SR7300 / SR7300F
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
PS7300 /
F1B/F1N
AV Surround Amplifi er
PS7300
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS AND SERVICE TOOL ........................................ 1
2. TECHNICAL DESCRIPTION................................................................................. 4
3. WIRING DIAGRAM................................................................................................ 5
4. BLOCK DIAGRAM................................................................................................. 7
5. SCHEMATIC DIAGRAM ........................................................................................ 9
6. PARTS LOCATION .............................................................................................. 25
7. IC DATA................................................................................................................ 36
8. EXPLODED VIEW AND PARTS LIST ................................................................. 47
9. SERVICE PROGRAM.......................................................................................... 51
10. UPDATE FIRMWARE .......................................................................................... 53
11. POWER AMPLIFIER ADJUSTMENT.................................................................. 55
12. SYSTEM ERROR................................................................................................ 56
13. TROUBLE SHOOTING........................................................................................ 57
14. ELECTRICAL PARTS LIST ................................................................................. 61
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Questions and Answers:

Marantz SR7300 Specifications

General IconGeneral
TypeStereo Receiver
Total Harmonic Distortion (THD)0.08%
Signal-to-Noise Ratio100 dB
Input Sensitivity200 mV
Headphone OutputYes
Power Output100 W per channel (8 ohms)
Frequency Response10 Hz - 100 kHz
Input Impedance47k ohms
Digital InputsCoaxial, Optical
Analog Inputs6
Analog Outputs1
Tuner SectionAM/FM

Summary

1. Technical Specifications and Service Tool

Technical Specifications

Detailed specifications for FM/AM tuners, audio, and video sections.

Service Tool Information

Details about the necessary service tool for unit updates.

2. Technical Description

Audio Technologies Overview

Explains DTS, Neo:6, Dolby Digital EX, and CS-II audio formats.

3. Wiring Diagram

4. Block Diagram

5. Schematic Diagram

6. Parts Location

7. IC Data

8. Exploded View and Parts List

9. Service Program

Factory Mode and Product Reset

Procedures for tuner adjustment and system memory reset.

10. Update Firmware

Firmware Update Procedures

Instructions for updating CPU and DSP firmware.

11. Power Amplifier Adjustment

Idling Current Alignment

Steps to adjust the idling current for optimal power amplifier performance.

12. System Error and Troubleshooting

System Error Codes

Identifies and explains error messages displayed on the unit.

Trouble Shooting Guide

Flowcharts to diagnose and resolve common operational issues.

14. Electrical Parts List

Parts Identification and Safety

Explains parts codes, resistor/capacitor identification, and safety notes.

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