Koss KS4380-2 manual Additional Information, Troubleshooting

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Additional Information

Troubleshooting

If you experience any of the following difficulties while using the system, use this troubleshooting guide to help you remedy the problem. Should any problem persist, consult your nearest service center by calling 1-800-287-4871.

No power.

￿Is the power cord firmly plugged into the power outlet?

￿One of the safety mechanisms may be operating. In this event, unplug the player from the power outlet briefly and then plug it in again.

No picture.

￿Check that the system is connected securely.

￿The video connecting cord is damaged. Replace it with a new one.

￿Make sure you connect the system to the video input connector on the TV (see page 16).

￿Make sure you turn on the TV.

￿Make sure you select the video input on the TV so that you can view the pictures from this system.

Noise (interference) appears in the picture.

￿Clean the disc.

￿If video from this system has to go through your VCR to get to your TV, the copy-protection applied to some DVD programs could affect picture quality. If you still experience problems after checking your connections, please try connecting your DVD system directly to your TV S-Video input, if your TV is equipped with this input (see page 16).

The aspect ratio of the screen cannot be changed even though you set “TV DISPLAY” in the SETUP menu when you play a wide picture.

￿The aspect rate is fixed on your DVD disc.

￿If you connect the system with the S-Video cable, connect directly to the TV. Otherwise, you may not change the aspect ratio.

￿Depending on the TV, you may not be able to change the aspect ratio.

There is no sound or only a very low-level sound is heard.

￿Check that the speakers and components are connected securely.

￿Make sure that you have selected the correct source on the system.

￿Press MUTE button on the remote control if MUTING is blinking on the front panel.

￿The protective device on the system has been activated because of a short circuit. Turn off the system, eliminate the short-circuit problem and turn on the power again.

￿The audio connecting cord is damaged. Replace it with a new one.

￿The system is in pause mode or in slow-motion play mode, or fast forward or fast reverse is performed

￿Press PLAY button to return to normal play mode.

The left and right sounds are unbalanced or reversed.

￿Check that the speakers and components are connected correctly and securely.

￿Adjust front balance parameter using CH.LEVEL and ￿￿/ ￿ + / - buttons (see pages 43).

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Contents Welcome...… Refer servicing to qualified service personnel onlyCleaning Important Safety InstructionsWall or Ceiling Mounting FCC Caution FCC NoticeTable of Contents Main Unit Front View Location of Controls and IndicatorsMain Unit Rear View Location of Jacks and TerminalsMain Display Indicators Remote Controller Buttons Important Safeguards and Precautions Discs that Cannot be Played Types of Discs That Can be Played on This SystemIcons used on DVD discs Glossary of Disc TermsDisc handling precautions Disc cleaning precautionsDisc installing precautions Installation Inserting Batteries into the Remote ControlUnpacking Speaker System Connection To avoid short-circuiting the speakersExamples of poor connection of the speaker cord FM Indoor Antenna Antenna ConnectionsFM Outdoor Antenna AM Outdoor AntennaTV and Optional Component Connections Connecting the AC Power CordTV Connection-Component Video Cable not Included Progressive Y, PB, PR Video OutLine Digital Progressive-Scan Component Video Output Speaker Positioning Information Typical Speaker Set UpSpeaker Setup Button Choose speaker type Controls and Their FunctionsMIC 1 / MIC 2 Jacks Recalling Preset Stations Presetting Radio StationsChanging Preset Stations Last Station MemoryBasic Playback Playing DiscsSkipping Chapter or Tracks Adjusting the Speaker Levels Test Tone Using the Root Menu Using the Title MenuUsing the Audio Menu Understanding the Individual DVD Disc MenuRepeat Playback Program Play Audio CDs Only Selecting a Start Point by Chapter or Time Code Selecting a CD Track Using Number ButtonsTo start playback from a specific title or chapter To start playback at a specific elapsed timeChecking Disc Information Using Display Button When playing a normal audio CDWhen playing back a DVD Setup Menu Listing DVD Menu Setting Setup Menu InformationTV Display Setting TV Type Setting Multi/NTSC/PALVideo Out Selecting the On Screen Display OSD Language Selecting Angle MarkDolby Digital Setup Dynamic Range Setting Screen Saver SettingSelecting the Language for Audio PreferencesSelecting the Language for Subtitles Selecting the Language for Disc MenusChanging the Parental Control Password Setting the Parental Control LevelHow to change speaker configuration settings Speaker SetupKaraoke Function Zoom Control Special FunctionsBookmark Function DVD Only Angle SelectionPBC Function VCD 2.0 Only Subtitle Language SelectionAudio Language Selection Picture CD OperationsDigest/Intro-Scan Function for Audio CDs Digest Display for Movie DVDsOther Functions Listening to the RadioKey Lock Other Sound Effects Center Level, Rear Level, and Subwoofer Level AdjustmentsSpeaker Configuration Setup Front Panel Only Night Playback Mode Front Panel OnlyListening to an External Source Mute ControlAdditional Information TroubleshootingSystem starts playing the DVD automatically Specifications Sonigem Service DVD Player Receiver with Karaoke
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