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Denon ADV-M51 - Service Manual

Denon ADV-M51
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SERVICE MANUAL
MODEL
ADV-M51
DVD SURROUND RECEIVER
For U.S.A.,Canada,Europe,
U.K., & Japan model
TOKYO, JAPAN
X0204 V.02 DE/CDM 0409
注 意
サービスをおこなう前に、このサービスマニュアルを
必ずお読みください。本機は、火災、感電、けがなど
に対する安全性を確保するために、さまざまな配慮を
おこなっており、また法的には「電気用品安全法」に
もとづき、所定の許可を得て製造されております。
従ってサービスをおこなう際は、これらの安全性が維
持されるよう、このサービスマニュアルに記載されて
いる注意事項を必ずお守りください。
● 本機の仕様は性能改良のため、予告なく変更すること
があります。
● 補修用性能部品の保有期間は、製造打切後
8年です。
Some illustrations using in this service manual are
slightly different from the actual set.
●
●
Please use this service manual with referring to
the operating instructions without fail.
●
For purposes of improvement, specifications and
design are subject to change without notice.
●
修理の際は､必ず取扱説明書を参照の上、作業を行って,
ください。
● 本文中に使用しているイラストは、説明の都合上現物
と多少異なる場合があります。
This service manual is composed of only pages whose
contents are different from those for the model ADV-M71.
For servicing, refer to the previously issued service manual
of ADV-M71 (X0182) at the same time
本書の内容は、既発行のサービスマニュアルADV‑M71
との相違部分のみ記載しています。
サービスの際はADV‑M71(X0182)と本書を
ご用意
願います。
Ver. 2

Table of Contents

Other manuals for Denon ADV-M51

Preview: Operating Instructions
Operating Instructions336 pages

Questions and Answers

  • K
    Kerri ButlerAug 17, 2025
    What to do if my Denon ADV-M51 remote control is not working?
    • L
      Lori ClineAug 17, 2025
      If your Denon Receiver isn't responding to the remote, try these steps: * Replace the batteries with new ones. * Move closer to the receiver. * Remove any obstacles between the remote and the receiver. * Ensure you are pressing the correct button. * Check the battery polarity (+ and -) and insert them correctly. * Make sure the remote control mode is properly selected; for this unit, use the DVD mode.
  • M
    martinezkatherineAug 20, 2025
    Why does my Denon Receiver have a display but no sound?
    • H
      hpetersonAug 20, 2025
      If the display on your Denon Receiver is lit but there's no sound, consider the following: * Ensure the speaker cords are securely connected. * Check the audio function button is in the correct position. * Increase the volume level. * Deactivate MUTING. * If using digital signals, ensure they are being input and the correct input jacks are selected.
  • B
    Brian CastilloAug 22, 2025
    What to do if my Denon ADV-M51 subwoofer is not working?
    • J
      Jessica JacksonAug 23, 2025
      If your subwoofer isn't producing sound with your Denon Receiver: * Make sure the subwoofer is powered on. * Check that the subwoofer setting in the receiver's setup is set to “Subwoofer” and not “No”.
  • J
    jwigginsAug 26, 2025
    How to fix a Denon Receiver when the monitor doesn't display an image?
    • A
      Andrew WilliamsAug 26, 2025
      If your monitor isn't displaying an image from your Denon Receiver, check these: * Confirm that the connections between the video output jack on the unit and the input connector on the monitor are correctly and securely connected. * Ensure the input setting on your monitor or TV is set to the correct jack where the video input is connected.
  • W
    wrobinsonAug 28, 2025
    How to resolve distorted sound on a Denon Receiver?
    • K
      Kevin ByrdAug 28, 2025
      If the sound from your Denon Receiver is distorted: * Lower the volume by turning the volume adjustment control counterclockwise. * Reduce the bass sound on the amplifier by lowering the bass adjustment control or volume.
  • B
    bridgeskaitlynAug 30, 2025
    What to do if Denon ADV-M51 Receiver display is not lit?
    • S
      sharonmaysAug 31, 2025
      If the display isn't lit and no sound is produced when the power switch is on for your Denon Receiver, check that the power cord is securely plugged in.
  • J
    Jaime ValdezSep 2, 2025
    Why is there continuous noise when receiving FM programs on my Denon Receiver?
    • T
      Tanya PruittSep 2, 2025
      If you're experiencing continuous noise when receiving FM programs on your Denon Receiver: * Ensure the antenna cable is properly connected. * Try connecting an outdoor antenna.
  • K
    Kathy VargasSep 5, 2025
    What causes hissing noise when receiving AM programs on a Denon Receiver?
    • A
      Alexander JohnsonSep 5, 2025
      If you hear hissing or continuous noise when receiving AM programs on your Denon Receiver: * Turn off nearby TVs that may be causing interference. * Adjust the position and direction of the AM loop antenna.
  • H
    holmesdanSep 8, 2025
    How to stop oscillation sound from Denon ADV-M51?
    • N
      nicholas43Sep 8, 2025
      If you are experiencing oscillation (loud continuous sound) with your Denon Receiver, lower the volume of the active subwoofer or amplifier.
  • G
    Gabriel HarrisSep 12, 2025
    Why is there a humming noise when receiving AM programs on my Denon ADV-M51 Receiver?
    • C
      Cameron YatesSep 12, 2025
      If you hear a humming noise when receiving AM programs on your Denon Receiver, unplug the power cord, flip the plug in the opposite direction, and plug it back in.

Summary

Service Manual Introduction

Scope and Usage Guidance

Manual covers differences from ADV-M71; refers to operating instructions.

Important Usage Notices

Notes on design changes, illustration variations, and general safety.

Service Safety Precautions

Electrical Safety Checks and Laser Warning

Instructions on leakage current checks, laser radiation, and avoiding electric shock.

Parts, Reassembly, and Post-Service Standards

Emphasizes using specified parts, correct reassembly, and post-service checks.

Schematic Diagram Conventions

Warnings, Values, and Measurement Standards

Safety warnings, unit conventions for resistance/capacitance, and measurement conditions.

Wiring Diagram Specifics and Notes

Notes on impedance values, capacitance units, and diagram subject to change.

Denon ADV-M51 Specifications

General IconGeneral
BrandDenon
ModelADV-M51
CategoryReceiver
LanguageEnglish

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