Marantz SR7500/A1B User Manual

SR7500 / SR8500
PS7500 / PS8500
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
SR7500 / SR8500
PS7500 / PS8500
AV Surround Receiver
SR7500 /
A1B/A1S/K1G/L1G
/N1B/N1G/N1S/U1B
PS7500 /
F1N
AV Surround Amplifi er
Part no. 90M10BW855012
2nd Issue 2004.11
MJI
TABLE OF CONTENTS
SECTION PAGE
1. TECH NI CAL SPEC I FI CA TIONS ........................................................................................... 1
2. TECHNICAL DESCRIPTION ................................................................................................ 4
3. POWER AMPLIFIER AD JUST MENT ................................................................................... 8
4. SERVICE MODE................................................................................................................... 9
5. SYSTEM ERROR ...............................................................................................................11
6. UPDATE FIRMWARE.......................................................................................................... 12
7. WIRING DI A GRAM ............................................................................................................. 19
8. BLOCK DIAGRAM ..............................................................................................................21
9. SCHEMATIC DIAGRAM...................................................................................................... 23
10. PARTS LOCATION..............................................................................................................45
11. IC DATA............................................................................................................................... 61
12. EXPLODED VIEW AND PARTS LIST................................................................................. 85
13. ELECTRICAL PARTS LIST................................................................................................. 97
SR8500 /
A1B/A1S/L1G/N1B
/N1G/N1S/U1B
PS8500 /
F1N
AV SURROUND RECEIVER SR7500
POWER ON/OFF PHONES
STANDBY
L
C
R
SL S SR
LFE
DIGITAL
SURROUND
DISP MULTI AU TO TUNED ST SPKR A B V-OF F
NIGHT
PEAK ANALOG
DIGITAL
ATT
SLEEP
SURR DIRECT
AUTO
DISC 6.1 MT X 6.1
PCM
AAC
AUX 1 INPUT
AUDIOS-VIDEODIGITAL VIDEO L R
DOWN UP
VOLUME
ENTER
INPUT SELECTOR
2nd EDITION
• 1, 25 and 27 pages were changed.

Marantz SR7500/A1B Specifications

General

Brand	Marantz
Model	SR7500/A1B
Category	Receiver
Language	English

Summary

Technical Specifications

Audio Section Specifications

Details power output, input sensitivity, and frequency response.

Power Amplifier Adjustment

Idling Current Alignment Procedure

Step-by-step guide for aligning the idling current of the power amplifier.

Service Mode Operations

Microprocessor and DSP Check Modes

Details accessing version information and segment check modes.

Firmware Download for DSP (Mode 1)

Procedure for updating DSP software to Flash-ROM.

System Error Detection and Display

System Error Codes and Causes

Lists and explains common system error indications and their causes.

Wiring Diagram

Schematic Diagrams

Input PCB Schematic

DSP PCB Schematics (Part 1)

Amplifier PCB Schematic

Video PCB Schematic

Component PCB Schematic

Integrated Circuit Data

SiI 160 IC Data (DVI PCB)

Detailed data for the SiI 160 IC on the DVI PCB.

SiI 1161 IC Data (DVI PCB)

Detailed data for the SiI 1161 IC on the DVI PCB.

Electrical Parts List

Resistor Specifications

Capacitor Specifications

General Safety Precautions

General safety warnings for servicing the unit.