JVC CA-WMD90R manual Sound Skip Guard Memory, MD limitations

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Sound Skip Guard Memory

The biggest weakness of discs is their susceptibility to vibration. The “Sound Skip Guard Memory” has been developed to cope with this weakness.

With this function, a few seconds of signals read by the optical read head from the MD are first stored in memory before being reproduced as audio signals. Thus, even when vibration or shock interrupts signals being read, these stored signals can continue to reproduce sounds for the few seconds. Thus, the user will enjoy uninterrupted music.

Normally....

When “vibrated”....

MD limitations

The MD records data in an original format that differs from that of conventional cassette tapes or DATs. Since there are some limitations with this recording format, the following types of symptoms may occur. These symptoms are not malfunctions.

Symptoms

“DISC FULL” appears, even though there is still enough remaining time on an MD.

“DISC FULL” appears even though the number of tracks and recording time do not reach the limit.

The JOIN function sometimes does not work.

The remaining time on the MD does not increase even when tracks are erased.

The sound drops out during fast forward or fast reverse.

The amount of recorded time on the MD added to the amount of remaining time is shorter than the MD’s total possible recording time.

Cause

There is a maximum number of tracks which can be recorded, regardless of recording time. More than 254 tracks cannot be recorded on an MD.

•Repeating erasure and recording on the same MD creates many blank portions sparsely on the MD. When record- ing on such an MD, a track is recorded on these blank portions sparsely. If a track is divided and recorded into so many portions, “DISC FULL” appears.

•If a divided portion of less than 8 seconds is made while a track is recorded on the MD, that track cannot be joined to another track using the JOIN function. Further- more, if that track is erased, the remaining time of the MD may not increase exactly by the erased amount.

•If a track has been divided into many portions while being recorded on the MD, sounds will drop out while fast forwarding or reversing such an MD.

You cannot record on a blank portion of less than 2 seconds in the MD. For this reason, the actual recording time of discs may become shorter.

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Contents CA-WMD90R If in Doubt Consult a Competent Electrician Class Laser Product Precautions IntroductionContents Display Window Location of the Buttons and ControlsBecome familiar with the buttons and controls on your unit MD deck a section Front PanelAmplifier/tuner section MD deck B sectionRemote Control Remote ControlGetting Started Putting the Batteries into the Remote ControlConnecting Antennas UnpackingAM antenna Connecting SpeakersYou can connect the speakers using the speaker cords To connect an outdoor AM antennaConnecting Other Equipment To connect a cassette deckOutput terminal To start the display demonstration manuallyFront panel Remote control Basic and Common OperationsAdjusting the Volume Setting the ClockTurning On the Power and Selecting the Sources To adjust the clock againReinforcing the Bass Sound Creating Your Own Sound Mode Manual ModeTo use your own sound mode Activating the Surround EffectListening to FM and AM MW/LW Broadcasts Presetting Stations Tuning in a StationTo change the FM reception mode Receiving FM Stations with RDS Tuning in a Preset StationChanging the RDS Information Searching for Programs by PTY Codes PTY Search Switching to a Program Type of Your Choice TemporarilyAlarm Òback to the beginning PTY Select flashes in the main displayTest function Alarm functionMore about the EON function Description of the PTY codes R. MPlaying Back CDs Basic CD Operations Loading CDsPlaying Back the Entire Discs Continuous Play To exchange CDs during playback of anotherProgramming the Playing Order of the Tracks Program Play To go to another track directly using the number buttonsTo check the program contents To go to another trackProhibiting Disc Ejection Disc Lock Playing at Random Random PlayRepeating Tracks or CDs Repeat Play Tracks of all loaded CDs will play at randomCancel Playing Back MDsLoading MDs When using MD deck aWhen using MD deck B Playing Back the Entire MD Continuous PlayTo change the display Indications Basic MD OperationsWhile playing an MD, you can do the following operations Insert an MD Tracks are played in the order you have programedPress #/ 8 on MD deck B or MD B 6 on the remote control Insert MDsTo prohibit disc ejection Disc Lock Repeating Tracks Repeat PlayTracks of the loaded MDs will play at random Recording on MDs FM/AM Tape AUXTo avoid erasing important recordings Before You Start RecordingAbout the track marks Recording is only possible on MD deck BTo check the remaining time When recording from the cassette deck, start playing a tapeRecording the External AUX Equipment AUX Recording Press AUX againMD to MD Synchronized Recording Various Recording FunctionsSynchronized Recording Start playing the source on the external equipmentPress Start Enter To confirm the recording contentsCD to MD Synchronized Recording On the unit only Load a CDOn the unit only Load CDs Single Track RecordingFirst Track Recording Rotate the left jog dial to select the recordable MDRepeat to program other tracks Listening Edit RecordingOn the unit only Prepare a CD or an MD as the source sound To stop any time during editing process and startTriple Recording Long REC lamp also lights Long RecordingPrepare the source you want to record from Recording starts from MD 1, MD 2 to MDEditing MDs Introducing MD Editing Functions Press MD Edit Divide FunctionTo join the divided tracks again, see the Join function To divide the joined tracks, see the Divide function Join FunctionMove Function Rotate the right jog dial until Move ? appears Press SETEdit CANCEL, then select the correct track number againErase Function MD deck B starts playing the MDALL Erase Function Assigning Titles to MDs TUVAssigning a Title Using the Unit You can make a correction or change the title Changing the TitlePress Enter Start to finish the current title entry Make sure that the character you want to change is flashingPress the button for the next character you want to input Track title entry indication mode appears whenPress MD Title Input Press Enter to finish the current title entryName Using the Timers SleepTo turn on or off Recording Timer after its setting is done Using Recording TimerHow Recording Timer actually works To turn on the Recording Timer, press SETVolume level will be set to 20 loud Using Daily TimerHow Daily Timer actually works Volume level will be set the previous level whenUsing Sleep Timer Timer PriorityHow Sleep Timer actually works General Notes MaintenanceTo clean the CD Handling CDsMD Disc Types Utoc User Table Of ContentsAdditional Information Atrac Adaptive TRansform Acoustic CodingSound Skip Guard Memory MD limitationsTroubleshooting Possible CauseSignification Solution MD MessagesSpecifications JVC 0399KSMMDWJEM