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Marantz SR4600 - Service Manual

Marantz SR4600
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SR4600
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
Service
Manual
SR4600
AV Surround Receiver
SR4600 /
A1B/N1B/U1B
/N1G
/A1S/N1S/U1S
Part no. 90M42BW855010
First Issue 2005.06
MZ
TABLE OF CONTENTS
SECTION PAGE
1. TECHNICAL SPECIFICATIONS ........................................................................................... 1
2. TECHNICAL DESCRIPTION ............................................................................................... 3
3. WIRING DIAGRAM .............................................................................................................. 5
4. BLOCK DIAGRAM ............................................................................................................... 7
5. SCHEMATIC DIAGRAM ....................................................................................................... 9
6. PARTS LOCATION ............................................................................................................. 23
7. IC DATA .............................................................................................................................. 33
8. EXPLODED VIEW AND PARTS LIST ................................................................................ 41
9. POWER AMPLIFIER ADJUSTMENT ................................................................................ 46
10. SERVICE MODE ................................................................................................................ 47
11. SYSTEM ERROR .............................................................................................................. 49
12. UPDATE FIRMWARE ......................................................................................................... 50
13. ELECTRICAL PARTS LIST ................................................................................................ 52
SURROUND
AV SURROUND RECEIVER SR4600
DOWN
UP
VOLUME
INPUT SELECTOR
POWER ON/OFF PHONES
STANDBY
MUTE
7.1CH INPUT
S. SPEAKER B
ATT
PURE
SETUP
DIRECT
SIMPLE
AUTO
HT-EQ
MENU
ENTER
DISPLAY
MEMORY
CLEAR
T-MODE
EXIT
BAND
MODE
DISP MULTI AUTO TUNED ST V
Ð
OFF NIGHT PEAK ANALOG
DIGITAL
ATT
SLEEP
SURR
AUTO
DIRECT DISC 6.1 MTX 6.1 EQ
DIGITAL
SURROUND
PCM
L
C
R
SL S SR
LFE

Table of Contents

Other manuals for Marantz SR4600

Preview: User Guide
User Guide43 pages
Preview: Specifications
Specifications2 pages

Questions and Answers

  • A
    abigail40Aug 21, 2025
    How to fix Marantz Receiver remote control if it fails?
    • C
      Cindy HaleAug 22, 2025
      If the remote control unit fails to control the receiver, consider these potential causes: * Replace all the batteries with new ones. * Select a different position from which equipment will be controlled because the remote controller's function-key setting might be wrong. * Move closer to the receiver if the distance is too far. * Remove any object blocking the path between the receiver and the remote commander.
  • H
    hughesstephenSep 4, 2025
    Why is noise heard during FM reception on my Marantz SR4600 Receiver?
    • S
      swilliamsSep 4, 2025
      If noise is heard during FM reception, the radio waves from the broadcasting station may be weak. Consider installing an FM outdoor antenna.
  • W
    William CarpenterSep 2, 2025
    Why is noise heard during AM reception on my Marantz SR4600?
    • Z
      zwaltersSep 2, 2025
      If noise is heard during AM reception, it may be affected by other electrical fields. Try changing the location where the AM indoor antenna is set up.
  • M
    Michael HutchinsonSep 1, 2025
    What to do if I cannot select EX/ES mode on my Marantz Receiver?
    • C
      Candice SolomonSep 1, 2025
      If you cannot select EX/ES mode, it might be due to the following reasons: * 'Surround center= NONE' has been selected in SPEAKERS SIZE SETUP. Make the correct setting. * The input signal is incompatible. Use a 5.1channel source.
  • A
    Amy BullockAug 30, 2025
    Why is there no audio output from the surround back speakers on my Marantz Receiver?
    • M
      monica85Aug 30, 2025
      If there is no audio output from the surround back speakers, consider the following: * Ensure the surround back speaker cable is correctly connected. * If the surround mode is not EX/ES mode, set it to EX/ES. * Verify that 'Surround back = NONE' has not been selected in SPEAKERS SIZE SETUP; make the correct setting.
  • B
    Brooke DeanAug 29, 2025
    Why is there no audio output from the surround speakers on my Marantz SR4600 Receiver?
    • J
      Justin GonzalesAug 29, 2025
      If there is no audio output from the surround speakers, check these potential issues: * Ensure the surround speaker cable is correctly connected. * If 'STEREO' is selected for Surround mode, no sound will be output from the surround speaker; set another Surround mode. * Verify that 'Surround = NONE' has not been selected in SETUP mode; make the correct setting.
  • H
    Harry HarveyAug 27, 2025
    Why is there no audio output from the center channel speaker on my Marantz SR4600?
    • M
      Mike ReyesAug 27, 2025
      If there is no audio output from the center channel speaker, check the following: * Ensure the center speaker cable is correctly connected. * If 'STEREO' is selected for Surround mode, no sound will be output from the center speaker; set another Surround mode. * Verify that 'Center = NONE' has not been selected in SETUP mode; make the correct setting.
  • C
    Charles EvansAug 27, 2025
    What to do if FM or AM reception fails on Marantz SR4600 Receiver?
    • S
      Scott WilsonAug 27, 2025
      If FM or AM reception fails, ensure that the indoor FM and AM antennas are correctly connected to the FM and AM antenna outlets.
  • T
    Tammy DavisAug 25, 2025
    Why is there no output to Sub Woofer Out on my Marantz SR4600?
    • J
      Jasmin ShepherdAug 25, 2025
      If there is no output to the Sub Woofer Out, it may be because 'Sub-woofer = NONE' has been selected in SETUP mode. To resolve this, select 'Sub-woofer = YES'.
  • A
    Andrea ElliottAug 23, 2025
    What to do if there is no sound and picture output even when power is on Marantz Receiver?
    • C
      Charlotte JohnsonAug 23, 2025
      If there is no sound and picture even when the power is on, check the following: * Ensure that mute is off by using the remote control. * Verify that the input cable is connected correctly, referring to the connection diagram. * Adjust the master volume, as it might be turned all the way down. * Confirm that the function selector is in the correct position.

Summary

1. Technical Specifications

FM Tuner Section Specifications

Details specifications for FM reception capabilities.

AM Tuner Section Specifications

Details specifications for AM reception capabilities.

Audio Section Specifications

Details audio output power and input specifications.

Video Section Specifications

Details video input/output and response specifications.

General Specifications

Lists general specifications like power requirements and weight.

Included Accessories

Lists included accessories with the unit.

2. Technical Description

3. Wiring Diagram

4. Block Diagram

5. Schematic Diagram

Input & DSP PWB (1;3) Schematic

Schematic for the Input and DSP Printed Circuit Board, part 1.

Input & DSP PWB (2;3) Schematic

Schematic for the Input and DSP Printed Circuit Board, part 2.

Input & DSP PWB (3;3) Schematic

Schematic for the Input and DSP Printed Circuit Board, part 3.

Main PWB Schematic

Schematic for the Main Printed Circuit Board.

Video PWB Schematic

Schematic for the Video Printed Circuit Board.

Component & Dig Input PWB Schematic

Schematic for the Component and Digital Input PCB.

7. IC Data

IC31: NJW1157 Pin Assignments

Pin assignments and functions for IC31 (NJW1157).

IC13: LC89057 W Pin Assignments

Pin assignments and functions for IC13 (LC89057W).

IC19: CS49400 Pin Assignments

Pin assignments and functions for IC19 (CS49400).

IC81: NJU3430 FG1 Pin Assignments

Pin assignments and functions for IC81 (NJU3430FG1).

IC41: H8 S2398 Pin Assignments

Pin assignments and functions for IC41 (H8S2398).

8. Exploded View and Parts List

Exploded View Diagram

Visual representation of the unit's assembly with numbered parts.

Parts List

Detailed list of components with part numbers and descriptions.

13. Electrical Parts List

Parts Information

Details on resistors, capacitors, and other components.

Notes on Fuses

Important safety information regarding fuse replacement.

Abbreviations and Marks

Defines common abbreviations and symbols used in the list.

Safety Notes

General safety precautions for handling components.

9. Power Amplifier Adjustment

10. Service Mode

11. System Error

12. Update Firmware

Mode 1: Download Firmware for DSP

Instructions for updating the DSP firmware.

Mode 2: Download Firmware for CPU

Instructions for updating the CPU firmware.

Firmware Version Check

Procedure to verify the installed firmware versions.

Marantz SR4600 Specifications

General IconGeneral
TypeAV Receiver
Number of Channels6.1
Total Harmonic Distortion (THD)0.08%
Input Sensitivity200 mV
HDMINo
Component Video Inputs3
Surround Sound FormatsDolby Digital, DTS, Dolby Pro Logic II
Input Impedance47 kOhms
Signal-to-Noise Ratio100dB
Digital Audio Inputs2 Optical, 2 Coaxial
Tuner SectionAM/FM
Video SectionComposite, S-Video

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