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Denon S-301 - Service Manual

Denon S-301
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SERVICE MANUAL
DVD HOME THEATER SYSTEM
MODEL S-301
TOKYO, JAPAN
Denon Brand Company, D&M Holdings Inc.
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.
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。
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。
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。
注 意
X0245 V.01 DE/CDM 0508
For U.S.A., Canada,
Europe & Japan model
HOME THEATER SYSTEM (S-301) consists of DVD SURROUND RECEIVER (ADV-S301)
and SUB WOOFER (DSW-S301) and SPEAKER SYSTEM (SC-S301)
Ver. 1
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

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Questions and Answers

  • E
    Elizabeth MercerJul 26, 2025
    Why is my Denon S-301 Home Theater System display lit but there is no sound?
    • K
      Kathleen GarciaJul 26, 2025
      If your Denon Home Theater System isn't producing sound but the display is lit, make sure the speaker cables are securely connected. Check that the FUNCTION button is in the correct position and the volume isn't set too low. Also, ensure MUTING is off. If you're using digital signals, verify they're being input correctly and the correct input terminal is selected.
  • K
    Karen MooreJul 31, 2025
    Why is the subwoofer indicator lit on my Denon S-301 Home Theater System?
    • J
      Jeffery TurnerJul 31, 2025
      If the subwoofer indicator is lit on your Denon Home Theater System, check the cable connection between the subwoofer and the main unit. If the indicator remains lit even with a proper connection, it could indicate a malfunction.
  • M
    Maria EricksonAug 6, 2025
    What to do if my Denon S-301 remote control is not working?
    • C
      cheyennekiddAug 6, 2025
      If your Denon Home Theater System remote control isn't working, first replace the batteries. If that doesn't solve it, try moving closer to the unit and make sure there's nothing blocking the signal. Also, ensure you're pressing the correct button and that the batteries are inserted correctly. Finally, confirm that the remote control MODE SELECTOR switch is set to DVD mode.
  • K
    Karen ThompsonAug 12, 2025
    How to fix a Denon S-301 Home Theater System when the monitor does not display an image?
    • L
      Lisa WileyAug 12, 2025
      If your Denon Home Theater System monitor isn't displaying an image, first check the connections between the video output terminal of the unit and the input connector of the monitor. Make sure they are correct. Also, verify that the input setting on your TV matches the terminal to which the video input is connected.
  • D
    Deanna RivasAug 18, 2025
    What to do if there is continuous noise when receiving FM programs on my Denon S-301 Home Theater System?
    • A
      Anna Harris MDAug 19, 2025
      If you're hearing continuous noise when receiving FM programs on your Denon Home Theater System, ensure the antenna cable is properly connected. If the issue persists, consider connecting an outdoor antenna.

Summary

Safety Precautions

LEAKAGE CURRENT CHECK

Check leakage current or line-to-chassis resistance before returning the unit to customer.

LASER RADIATION

Warning against staring into laser beam or viewing directly with optical instruments.

Disassembly

Diagnostics of Optical Pickup and Replacing Traverse Unit

Laser Drive Current Check

Check laser drive current (Iop) and compare with the initial value for diagnostics.

Traverse Unit Replacement

Replace the traverse unit if laser drive current exceeds 1.5 times the initial value.

Special Operating Procedures

Initialization

Initializes function, volume, and DVD mechanism data.

Adjustment

Procedure

Adjust COMPONENT OUT signals (Y, PB/CB, PR/CR) using oscilloscope.

Wiring Diagram

Waveforms

Note for Schematic Diagram

Schematic Diagrams (1;50)

Schematic Diagrams (49;50)

Schematic Diagrams (50;50)

Denon S-301 Specifications

General IconGeneral
TypeHome Theater System
Channels5.1
Supported FormatsDolby Digital, DTS
USB Ports1
Main UnitYes
DVD playerYes
CD playerYes
ReceiverYes
Remote controlYes
BluetoothNo
HDMI Outputs1
Optical Input1
Coaxial Input1
FM TunerYes
Supported MediaDVD, CD
RadioFM
InterfacesHDMI, USB, Optical, Coaxial

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