JVC TH-A75 manual Troubleshooting, General

Page 70

Troubleshooting

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

• Refer also to the manuals supplied with the components you connect to this system.

General

PROBLEM

 

POSSIBLE CAUSE

 

 

SOLUTION

Power does not come on.

The power cord is not plugged in.

Insert the plug into an AC outlet.

 

 

 

 

 

 

“OVERLOAD” flashes on the

Speakers are overloaded because

Press

on the center unit to turn off the

display.

speaker cords are short.

system, check the speaker connection, then

 

 

 

 

turn on the system again.

 

 

 

 

If “OVERLOAD” reappears, unplug the power

 

 

 

 

cord, then plug it back again. If speaker

 

 

 

 

cords are not short, contact your dealer.

 

 

 

 

 

Suddenly, the system turns off.

The sleep timer or Auto Standby is activated.

Turn these functions off. (See pages 18 and 56.)

 

 

 

 

 

 

 

Speakers are overloaded because of

Press

on the center unit to turn on

 

high volume.

the system again and adjust the volume.

 

 

 

 

 

 

The protection circuit functions for some

Check the speaker connection, then turn

 

reason.

on the system again. If it does not solve

 

 

 

 

the problem, contact your dealer.

 

 

 

 

 

No sound.

Speaker cords are not connected.

Check speaker connection and

 

 

 

 

reconnect if necessary.

 

 

 

 

 

 

Speaker cords are short.

Check speaker connection.

 

 

 

 

 

 

The audio cord is not connected correctly.

Connect the cord correctly.

 

 

 

 

 

 

An incorrect source has been selected.

Select the correct source. (See page 16.)

 

 

 

 

 

 

Muting is on.

Press MUTING to cancel muting.

 

 

 

 

 

 

Incorrect analog/digital input mode is

Select the proper input mode. (See page

 

selected

18.)

 

 

 

 

 

 

Sound from one front speaker

Speaker cords connections are not correct. Check connections.

only.

 

 

 

 

 

The balance is set to one extreme.

Adjust the balance properly.

 

 

 

 

 

(See pages 26 and 54.)

 

 

 

 

 

No sound from the surround back The speaker setting is incorrect.

Set the speaker setting properly. (See

speakers.

 

 

 

pages 24 and 55.)

 

 

 

 

 

The remote control does not

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

Operate the remote control within 7 m

work.

facing the center unit.

from the remote sensor on the center unit.

 

 

 

 

 

 

There is something obstructing the

Avoid any obstruction. (See page 15.)

 

remote sensor.

 

 

 

 

 

 

 

 

The remote control is not aimed at the remote sensor on the center unit or other components.

The remote control mode selector is set at an incorrect position.

The batteries are exhausted.

The batteries have been inserted the wrong way round (+/–).

Aim the remote control at the remote sensor on each component you want to operate.

Set it to the correct position, “AUDIO/TV/ VCR” or “CATV/DBS.”

Replace the batteries.

Insert the batteries correctly.

Incorrect button is selected before

Select a correct source by pressing DVD,

operation you are going to do.

FM/AM or VCR/TV CONTROL.

 

 

Press SOUND before you perform sound

 

 

adjustment.

 

 

 

6.1-channel reproduction cannot be done from Dolby Digital EX or DTS-ES software.

Bass sound is heard reinforced when listening in stereo.

Sunlight is falling directly on the remote sensor.

The remote control signals are not set correctly.

Reproduced non 6.1-channel software or “EX/ES” is set to “OFF.”

Appropriate bass level for stereo sound is not selected.

Shade the remote sensor from direct sunlight.

Enter the correct manufacturer’s code. (See pages 62 to 64.)

Playback software bearing the mark

or .

Set “EX/ES” to “ON” or “AUTO.”

Adjust “AUDIO POS.” (See page 26).

66

Image 70
Contents SP-WA75 Consists of XV-THA75, SP-WA75, SP-XSA75, and SP-XCA75LVT0958-010A XV-THA75 Important for Laser Products Class 1 Laser ProductPage Table of contents Safety precautions PrecautionsChecking the supplied accessories IntroductionPRO LOGIC, PRO Logic Names of parts and controlsCenter unit DIGITAL, Digital EX , DTSNames of parts and controls Remote controlSource selecting buttons 16 VCR/DBS, FM/AM, DVD Discs you can play About discsPlayable disc types Video Region Code Type Logo Format NumberPlayback Control function PBC Only for VCD and Svcd About discsDisc structure Before playing a disc, make sure of the followingGetting started Connecting a TVConnecting a TV ConnectionsGetting started Connecting the AM and FM antennasAM loop antenna Connecting the supplied FM antenna If reception is poor FM antennaBefore connecting the speaker cord Connecting the satellite speakers and subwooferSpeaker layout diagram Inserting the speaker cord into the speaker terminalsSubwoofer Surround back Speaker Installing the satellite speakers on the wall Location of attachment to the wallVCR connection Connecting video componentsDBS tuner connection Connecting the power cord Plug into AC outlet Power cordOperating the system using the remote control Using the remote controlPutting batteries in the remote control Replace the coverTurning on the system Basic operationsSelecting the source to play Press Source repeatedlyAdjusting the brightness Adjusting the volumeAdjusting the output level of subwoofer Listening with headphonesBasic operations Turning off the power with the sleep timerChanging the analog/digital input mode and decoding mode Press SleepPress and hold Progressive for 5 seconds Storing basic adjustments- auto memoryChanging the scanning mode About scanning systemBasic DVD player operations Resume playback function see About the indications on the displayPreventing screen burn-out-screen saver function Using preset tuning Setting the AM tuner interval spacingTuning in to stations manually To store the preset stationsTo tune in to a preset station Selecting the FM reception modeReducing the noise of AM broadcast Setting speaker sizes Basic settingsOperating procedure Press SETTING/ADJUST onceSetting the video output for DVD Setting the speaker distanceSetting the phase of subwoofer Setting the crossover frequency-CROSSAudio adjustments Dolby Digital EX Creating realistic sound fieldsSurround modes Dolby DigitalCreating realistic sound fields DAP Digital Acoustic Processor modes DSP modesAll Channel Stereo Speaker and signal indicators Using Surround mode Using DSP mode10 keys are activated for sound adjustments Adjusting soundAdjust the speaker output levels -10 dB to +10 dB After adjusting soundShowing the on-screen bar Using the on-screen barDVD player operations Press on ScreenChanging the time information DVD player operationsBasic operation through the on-screen bar Press TOP Menu or Menu Locating a particular scene from the DVD menuPBC Selecting a view angle Selecting a view angleShowing all view angles on the TV Selecting the audio language Changing the subtitle and audio languagesSelecting the subtitle language Press SubtitleSelect the desired audio language Press Audio Selecting the audio channelPress Audio or Cursor ∞/5 repeatedly to For VCDLocating a particular position Time search Playing from a particular positionLocating a particular chapter Chapter search Press the number buttons 0-9 to enter the specified timePress Cursor 3/2/∞/5 to move to the desired scene Locating a particular scenePress Digest Frame-by-frame playback Special picture playbackShowing continuous still pictures Press ¡ or Playing back in slow-motionZooming in and out Press Zoom + to zoom in or Zoom to zoom outTo adjust the appearance of picture Changing the VFP settingPress Cursor 3/2 repeatedly to select the VFP mode Repeat steps 2-4to adjust other parametersRepeat to program other tracks Press PlayRepeating title, chapter, or tracks Press Cursor ∞/5 repeatedly to select repeat play modeRepeat play Repeating a particular portionTo start playback MP3 disc playbackBasic operation Load an MP3 disc, then press PlayOperations Operating through the MP3 Control screenMP3 Control screen To start playback from the specified track numberTo start slide-show playback Jpeg disc playbackSlide-show Load an Jpeg disc, then press PlayOperating through the Jpeg Control screen Jpeg Control screenChoice Using the choice menusChoice menus EnterPress Cursor ∞/5 repeatedly to move to Screen Saver Basic operating procedurePress Choice To set other items on the same choice menuLanguage menu Using the choice menusLanguage codes list Select one of the languages-ENGLISH, Chinese orYou can activate or deactivate the screen saver function Picture menuMulti Normal 169 Multi Auto 43 Multi LB Multi PS Turn on or OFF the screen saver functionUsing the choice menu Audio menuSUB Woofer SPK. Setting menuTest Tone To be on the NextOthers menu ¶ Cross OverRestricting playback-Parental Lock Setting Parental LockTo exit from the choice menu New setting is stored Changing the setting of Parental LockPress the number buttons 0-9 to enter your password Releasing Parental Lock temporarilyCountry/area codes list for Parental Lock Connection 1 AV Compu Link connection AV Compu Link remote control systemConnection 2 Video cord connection Procedure for connection Available functionsTV/VIDEO Operating TVRelease TV Try to operate your TV by pressing TV Channel +CATV/DBS Operating Catv converter or DBS tunerManufacturers’ codes for Catv converter or DBS tuner Code Operating VCR Set the remote control mode selector toOperating other manufacturers’ video equipment Press and hold VCRTo clean the disc MaintenanceStains on the system Troubleshooting GeneralDVD Playback Troubleshooting MP3 Playback Jpeg PlaybackGlossary See Titles and chaptersSpecifications Page  2002 Victor Company of JAPAN, Limited 1102TMMMDWJEM