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Denon DVD-3800 - Service Manual

Denon DVD-3800
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Digital Player
SERVICE MANUAL
MODEL
DVD-3800
DVD AUDIO-VIDEO PLAYER
Some illustrations using in this service manual are slightly different from the actual set.
16-11, YUSHIMA 3-CHOME, BUNKYOU-KU, TOKYO 113-0034 JAPAN
Telephone: 03 (3837) 5321
For U.S.A., Canada, Europe,
Asia & Korea model
X0137 NC 0207

Other manuals for Denon DVD-3800

Questions and Answers

  • E
    Erica CookSep 14, 2025
    How to turn on Denon DVD Player if power does not turn on?
    • S
      Sharon CurrySep 14, 2025
      If your Denon DVD player does not turn on, plug the power cord securely into the power outlet.
  • D
    David ThompsonAug 25, 2025
    Why does my Denon DVD-3800 remote control not work?
    • G
      Gregory DuranAug 25, 2025
      If your Denon DVD Player remote control isn't working, make sure the batteries are correctly inserted, replacing them if necessary. Ensure you're pointing the remote at the sensor within a 7-meter range, and that there are no obstacles blocking the signal.
  • M
    Mrs. Heather Banks DDSAug 25, 2025
    What to do if my Denon DVD-3800 DVD Player picture does not appear?
    • U
      ucisnerosAug 26, 2025
      If the picture doesn't appear on your Denon DVD Player, check the connections and make sure the TV’s input is set to 'video'. Also, verify that VIDEO OUT has not been set to OFF for PURE DIRECT MODE.
  • D
    Dr. Craig ShieldsAug 26, 2025
    What to do if my Denon DVD-3800 DVD Player sound is not produced or sound quality is poor?
    • C
      Chad AcevedoAug 26, 2025
      If the sound from your Denon DVD Player is not working or the sound quality is poor, check the connections, properly set the input of the TV or stereo, and check the 'DIGITAL OUT' and 'COMPRESSION' settings.
  • A
    Angela BakerSep 14, 2025
    What to do if no subtitles are displayed on Denon DVD Player?
    • J
      Jennifer LuceroSep 15, 2025
      If no subtitles are displayed on your Denon DVD Player, first make sure that the DVD contains subtitles. If it does, check the subtitle settings and turn them on, as they may be currently turned off.
  • J
    jason82Sep 23, 2025
    Why Denon DVD-3800 disc is not played with the audio language set as default?
    • T
      Tyler CaldwellSep 23, 2025
      The disc may not play with the selected audio or subtitle language on your Denon DVD Player if that audio or subtitle language is not included on that DVD.
  • J
    Jeremiah DavisSep 7, 2025
    Why can't I change the audio or subtitle language on my Denon DVD-3800 DVD Player?
    • J
      James AndersonSep 7, 2025
      If you can't switch the audio or subtitle language on your Denon DVD player, it might be because the disc doesn't have multiple language options. However, some discs allow language switching via the menu screens, even if the direct switch function doesn't work.
  • J
    johnsonkellySep 8, 2025
    How to adjust the aspect ratio on my Denon DVD Player?
    • E
      Eric SmithSep 8, 2025
      If the picture on your Denon DVD player isn't displaying in the correct 4:3 or 16:9 aspect ratio, adjust the “TV ASPECT” default setting to match your connected TV.
  • J
    judy48Sep 23, 2025
    What to do if my Denon DVD-3800 has no power?
    • B
      baileykristinaSep 23, 2025
      If your Denon DVD Player isn't powering on, try these steps: * First, ensure the connector is properly inserted. * If that doesn't work, replace the switching power unit (GU-3439-1). * Check the soldering of R681 and R602. Then, inspect the soldering of X601 and IC601; replace X601. If the issue persists, replace IC601. * As a last resort, try swapping the Main PWB (GU-3389) with a known working one to perform an operation check.
  • A
    Ashley JohnsonAug 31, 2025
    Why is the disc not played with the audio or subtitle language set as the default setting on my Denon DVD-3800?
    • L
      Lisa YoungAug 31, 2025
      The disc might not play with the selected audio or subtitle language on your Denon DVD Player if that audio or subtitle language is not included on that DVD.

Summary

SAFETY PRECAUTIONS

LEAKAGE CURRENT CHECK

Check for leakage current or line to chassis resistance before returning unit.

IOP MEASUREMENT METHOD

ARRANGE OF JUDGMENT

Procedure to check disc read, laser current (Iop), and Traverse Unit replacement.

IOP MEASUREMENT METHOD

Method for measuring laser drive current (Iop) for DVD and CD.

REPLACEMENT OF THE TRAVERSE UNIT

NOTE FOR HANDLING THE LASER PICK-UP

Precautions for handling the laser pick-up to prevent damage to the laser diode.

DISASSEMBLY

HOW TO REPLACE TRAVERSE UNIT

PREPARING FOR REPLACEMENT

Steps for preparing the unit before replacing the Traverse Unit.

REPLACING TRAVERSE UNIT

Procedure for removing and mounting the Traverse Unit.

SERVICE MODE

AGING MODE

Procedure for setting the unit to aging mode for testing.

INITIAL SETTING MODE

Procedure to restore factory settings and initialize the DVD player.

TROUBLESHOOTING

NO POWER (FL tube doesnt light.)

Steps to diagnose and resolve 'No power' issue related to FL tube.

NO POWER (Both FL tube & LED dont light.)

Steps to diagnose and resolve 'No power' issue with FL tube and LEDs.

ELECTRICAL ADJUSTMENT FOR VIDEO

BLOCK DIAGRAM

SEMICONDUCTORS

NOTE FOR PARTS LIST

PARTS LIST OF P.W.B. UNIT ASSY

EXPLODED VIEW

EXPLODED VIEW OF DVD MECHANISM

PARTS LIST OF DVD MECHANISM

WIRING DIAGRAM

MEASURING METHOD AND WAVEFORMS

WAVEFORMS

GU-3389-1 MAIN P.W.B.

Waveform examples for the main P.W.B. under different operating modes.

GU-3438-1 AUDIO P.W.B.

Waveform examples for the audio P.W.B. under various test points.

GU-3438-2 VIDEO P.W.B.

Waveform examples for the video P.W.B. under various test points.

SCHEMATIC DIAGRAMS (1;8)

SCHEMATIC DIAGRAMS (7;8)

Denon DVD-3800 Specifications

General IconGeneral
BrandDenon
ModelDVD-3800
CategoryDVD Player
LanguageEnglish

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