JVC TH-A25 manual Troubleshooting

Page 94

English

Troubleshooting

Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC service center.

PROBLEM

Power does not come on.

The remote control does not work.

No sound.

Sound is emitted from only one speaker.

No video.

A disc cannot be played.

POSSIBLE CAUSE

The power cord is not plugged in.

It is too far from the center unit, or is not facing the center unit.

There is something obstructing the remote sensor.

The CONTROL TV button has been pressed.

The battery is flat.

The battery has been inserted the wrong way round (+/–).

Sunlight is falling directly on the remote sensor.

There is a short in the speaker cord.

The audio cord is not connected properly.

An incorrect source has been selected.

Muting is on.

The speaker cord is not connected correctly.

Left-right balance is incorrect.

The video cord is not connected properly.

TV input selection is incorrect.

The system and disc region code numbers are incompatible.

The disc causes the parental (rating) error.

SOLUTION

Insert the plug into the socket.

Come close to the center unit.

Avoid any obstacles.

Press DVD, FM/AM, or AUX to operate the system. (See page 11.)

Replace the battery.

Insert the battery correctly.

Shade the remote sensor from direct sunlight.

Reconnect the speaker cord.

Connect the cord properly. (See page 9.)

Select the correct source. (See pages 12 to 16.)

Press MUTING to cancel muting.

Connect the cord properly. (See page 7.)

Adjust balance. (See page 17.)

Connect the cord properly. (See page 8.)

Select the correct input.

Replace the disc. (See page 21.)

Enter password to change the parental (rating) level. (See page 39.)

“WRONG DISC” appears on the display.

“NO DISC” appears on the display though a disc is inserted.

Video and audio are distorted.

The edge is missing on the video image.

No picture is displayed on the TV screen, the picture is blurred, or the picture is divided into two parts.

• An incompatible disc is loaded. (See page

• Replace the disc.

 

 

21.)

 

 

 

 

 

 

 

• The disc is dirty.

• Clean the disc.

The disc is scratched.

Replace the disc.

 

 

 

 

 

The disc is dirty.

Clean the disc.

A VCR is connected between the center unit • Connect the center unit and TV directly. and the TV.

• Initial setup (TV screen size) is incorrect.

• Set TV screen size correctly.

 

 

 

(See page 36.)

 

 

 

 

• The scanning mode is set to

• Change the scanning mode to

 

“PROGRESSIVE TV” though the system

 

“INTERLACE TV.” (See page 10.)

 

is connected to the TV which does not

 

 

 

support the progressive video input.

 

 

Continuous static during FM broadcasts.

The system does not work correctly.

The received signal is too weak.

The station is too far away.

The antenna is not connected correctly.

Lightning or electronic noise interferes with operation of the microcomputer.

Abrupt change of the temperature inside the unit from cold to hot causes condensation of the unit inside.

Connect an external FM antenna (see page 5), or contact your dealer.

Select another station.

Check the connection. (See page 5.)

Switch power off, and remove and re-insert the power plug in the socket.

Switch power off and leave the unit a few hours before switching power on again.

42

Image 94
Contents TH-A25 Important for Laser Products Table of Contents Front Panel Parts IdentificationCenter Unit DisplayRemote Control Remote ControlGetting Started Before Installation Putting Batteries in the Remote ControlChecking the Supplied Accessories Replace the coverFM antenna connection Connecting the FM and AM AntennasAM antenna connection Speaker Layout Diagram Getting StartedConnecting speaker cords to the center unit Connecting the SpeakersConnecting speaker cords to the speakers When setting the speakersTurn the power off to all components before connections Connecting Audio/Video ComponentTV connection Audio component connection VCRPress DVD TV SettingsChanging the Scanning Mode Press and hold Progressive for aControl TV Operating TVTV/VIDEO Basic Disc Operations Turn On the PowerFrom the remote control Press DVD Load a DiscTo activate Dolby Digital or DTS Digital Surround Start PlaybackTo turn off the sounds temporarily DVDTo stop playback for a moment To turn off the power into standbyTo stop playback To remove the discSelect the Band Basic Tuner OperationsTune into a Station Other Basic Operations Turning Off the Power with the TimerAdjusting the Display Brightness Enjoying Sounds from the External ComponentCreating Realistic Sound Fields Using the Test ToneAdjusting the Sound Press PL II repeatedly to activate all SpeakersPress 3 or 2 to adjust the output balance -00 to -06, OFF Balance and the adjustment bar Appear on the TV screenBasic sound adjustment procedure Dolby Digital Surround Mode IntroductionDolby Digital and DTS Digital Surround DTS Digital SurroundTo activate Digital Multichannel Surround Activating the Surround ModeAvailable surround according to the input signal format To activate Dolby Pro Logic II modesDisc Introduction-DVD/VCD/SVCD/CD Discs you can playShowing the On-Screen Bar Using the On-Screen BarDisc Playback EnterPress 5/∞ repeatedly to select Desired option Press on ScreenPress 3 / 2 repeatedly to select Press EnterPress 5/∞ repeatedly to select the desired language Selecting the Audio LanguagesPress 3/2 repeatedly to select Selecting the SubtitlesSelecting the Multi-Angle Views Selecting the Playback ChannelFor DVD Press Menu or TOP Menu Disc Menu-Driven PlaybackEnter Press the number buttons to Moving to a Particular Portion DirectlyPress 3/2 to select one of the icons below Track, or playing time, then Press EnterPress 5/∞ repeatedly to select Repeating PlaybackMode PointPress Step repeatedly to advance the picture frame by frame Special Picture PlaybackPress Step once during playback Press ZoomMP3/JPEG Introduction Insert a disc MP3/JPEG PlaybackStarting Playback Showing the On-Screen BarTo start playback of the selected file Operations Using the On-Screen DisplayOn-screen display Press 3/2/5/∞ to select the file, then pressPress Menu Selecting a Particular File/Folder DirectlyBrowsing Pictures in the Current Folder Press 3/2/5/∞ to select Desired picture, then pressTuning in Stations Tuner OperationsPress ¢or 4to select a preset number Using Preset TuningSelecting the FM Reception Mode Setting the System Preferences Setting Up the DVD PreferencesCHOICE/TIME Press 2 and repeat steps 3 to 6 to set up other items Press ∞ or 5 to select highlight General SETUP, then pressPress 5/∞ to select the desired setting Press Enter Press CHOICE/TIMEPress ∞ or 5 to select highlight Setting the PreferencesBasic procedure to set up preferences PREFERENCES, then pressTo select Change then press Enter Press 5/∞ to select the desired settingPWD box to verify the password BoxLanguage Code List To release the parental lock temporarilyGeneral Notes MaintenanceCleaning the unit Handling DiscsSolution TroubleshootingProblem Possible CauseSpecifications Limited Warranty Authorized Service Centers TH-A25 DVD Digital Theater System Consists of XV-THA25 and SP-THA25 Mises en garde, précautions et indications diverses For Canada/pour Le Canada Important Pour LES Produits Laser English English Remote Control Getting Started AM Loop antenna supplied Getting Started Connecting the Speakers Connecting Audio/Video Component VCR English Operating TV Basic Disc Operations Start Playback Playback stops Basic Tuner Operations Other Basic Operations Enter Sound adjustment indication on the display DTS and DTS Digital Surround are registered trademarks Analog Linear PCM Dolby Digital Multichannel Disc Introduction-DVD/VCD/SVCD/CD English English Disc Playback Checking the Remaining Time Disc Menu-Driven Playback Moving to a Particular Portion Directly Repeating Playback Special Picture Playback This system is incorporated with an MP3 decoder and Jpeg MP3/JPEG Playback MP3/JPEG Playback English Tuner Operations Press ¢ or 4 to select a preset number Setting Up the DVD Preferences DRC gets dark and the adjustment tab becomes adjustable Main Italian Others Press 5/∞ to select the desired setting Enter CHOICE/TIME Maintenance Troubleshooting Specifications EN, FR 0903TMMMDWSAM Victor Company of JAPAN, Limited
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TH-A25 specifications

The JVC TH-A25 is a compact home theater system that combines innovative sound technologies with user-friendly features, making it an excellent choice for those looking to enhance their audio-visual experience at home. One of the standout aspects of the JVC TH-A25 is its impressive surround sound capabilities, which allow users to immerse themselves in a three-dimensional audio environment. This model features advanced audio processing technology designed to enhance the clarity and depth of sound, creating a cinematic experience right in your living room.

The system is equipped with a powerful subwoofer that delivers deep bass, enriching music and movie soundtracks alike. With a total output power of around 300 watts, the JVC TH-A25 ensures that the audio is loud enough to fill medium-sized rooms while maintaining sound quality. The presence of multiple audio channels allows for versatile speaker placement, enhancing the overall soundstage.

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In summary, the JVC TH-A25 is designed to deliver an engaging audio experience with its advanced surround sound technology, powerful bass, and modern connectivity features. Its compact design and user-friendly interfaces make it suitable for any home theater enthusiast looking to elevate their entertainment experience.