JVC UX-A70MDR manual Troubleshooting, Specifications

Page 54

Troubleshooting

If you are having a problem with your unit, check this list for a possible solution before calling for service.

If you cannot solve the problem from the hints given here, or the unit has been physically damaged, call a qualified person, such as your dealer, for service.

Symptom

No sound is heard.

Unable to record on an MD.

Poor radio reception.

Unable to operate the remote control.

Loaded CD and MD can not be ejected.

The CD does not play.

The CD skips.

Operations are disabled.

Possible Cause

Connections are incorrect or loose.

•You are using a prerecorded MD.

•The MD is write-protected.

•The antenna is not connected correctly.

•The AM loop antenna is too close to the unit.

•The FM antenna is not properly extended and positioned.

•The path between the remote control and the remote sensor on the unit is blocked.

•The batteries have lost their charge.

•You are using the remote control far from the main unit.

The main AC power cord is not plugged in.

The CD is upside down.

The CD is dirty or scratched.

The built-in microprocessor has malfunctioned due to external electrical interference.

Action

Check all connections and make corrections. (See pages 6 – 9.)

•Change it with a recordable MD.

•Unprotect the MD. (See page 29.)

•Reconnect the antenna securely.

•Change the position and direction of the AM loop antenna.

•Extend FM antenna to the best reception position.

•Remove the obstruction.

•Replace the batteries. (See page 9.)

•Signals cannot reach the remote sensor. Move close to the main unit.

Plug in the AC power plug.

Put the CD in with the label side up.

Clean or replace the CD. (See page 46.)

Unplug the unit then plug it back in.

Specifications

US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

Amplifier

Output Power (IEC 268-3/DIN):

44 W (22 W + 22 W) at 4 Ω (MAX.)

40 W (20 W + 20 W) at 4 Ω (10 % THD)

Audio input sensitivity/Impedance (at 1 kHz)

LINE IN:

400 mV/48 kΩ

Audio output level/Impedance (at 1 kHz) LINE OUT: 260 mV/5.8 kΩ

Speaker Terminals: 4 Ω – 16Ω

Tuner

FM tuning range:87.50 MHz — 108.00 MHz AM (MW/LW) tuning range:

MW:

522 kHz — 1 629 kHz

LW:

144 kHz — 288 kHz

CD player

CD Capacity:

1 CD

Dynamic range:

85 dB

Signal-to-noise ratio:

90 dB

Wow and flutter:

Immeasurable

Sampling frequency:

44.1 kHz

Audio compression system:

ATRAC (Adaptive TRansform Acoustic

Coding)/ATRAC3 ( )

Speaker Section

Speakers:

Woofer 10 cm, Tweeter 4 cm

Impedance:

4 Ω

Dimensions (approx.):

130 mm x 215 mm x 231.5 mm (W/H/D) (51/8 in. x 81/2 in. x 91/8 in.)

Mass (approx.): 2.0 kg (4.5 lbs)

General

Power requirement:

AC 230V , 50 Hz

Power consumption:

50 W (at operation)

 

3.9 W (on standby)

Dimensions (approx.):

431 mm x 217 mm x 330 mm (W/H/D) (17 in. x 89/16 in. x 13 in.)

Mass (approx.): 8.5 kg (18.8 lbs)

MD recorder

Audio playing system:

MiniDisc digital audio system

Recording system:

Magneto-optical overwrite system

Reading system:

Non-contact, semiconductor laser

 

pickup (λ=780 nm)

Error correction system:

CIRC (Cross Interleave Reed-Solomon

 

Code)

Recording/Playback time (when using a 80-minute MD )

SP:

80 minutes

LP2:

160 minutes

LP4:

320 minutes

Supplied accessories

See page 6.

Design and specifications are subject to change without notice.

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Contents UX-A70MDR If in Doubt Consult a Competent Electrician Class Laser Product Above ALL Precautions IntroductionContents Location of the Buttons Main unitBecome familiar with the buttons on your unit Main Unit Display windowRemote Control Remote ControlWhen using the remote control Unpacking Connecting AntennasGetting Started FM antennaTo connect an outdoor AM MW/LW antenna Connecting SpeakersAM MW/LW antenna To attach spacersTo connect speakers Connecting Other EquipmentYou can connect the speakers using the speaker cords To connect another component such as a cassette deckPutting the Batteries into the Remote Control To stop and cancel the display demonstration, pressTo start the display demonstration manually, press Basic and Common Operations Selecting the Sources and Starting Play Turning On the PowerAC power cord from the AC outlet To turn on the unit without playing, pressReinforcing the Bass Sound Adjusting the VolumeTo turn down the volume level temporarily Selecting the Sound ModesTo create your favorite colors Setting the Display IlluminationTo set the illumination color To dim the display illuminationListening to FM and AM MW/LW Broadcasts Tuning in a Station Presetting StationsTo change the FM reception mode Changing the RDS Information Tuning in a Preset StationReceiving FM Stations with RDS Searching for Programs by PTY Codes PTY SearchSwitching to a Program Type of Your Choice Temporarily Alarm function Test functionMore about the EON function Description of the PTY codes Playing Back a CD To locate a particular point in a track during play Basic CD OperationsTo stop playback for a moment To go to another trackTo check the program contents Program PlayTo modify the program Repeating Tracks Repeat Play On the remote control onlyPlaying at Random Random Play To skip the current track, press ¢Playing Back an MD Insert an MD into the MD loading slot You can play an MDOn the main unit only Press MD OPEN/CLOSE Press MD #Basic MD Operations Programing the Playing Order of the Tracks Program PlayTo change the information in the main display To skip the playing track, press ¢ Random play ends when all the tracks are played onceOn the remote control only Load an MD Press MD # / 8, then Tracks of the loaded MD will play at randomMain unit Remote control Recording on MDTo avoid erasing important recordings Before You Start RecordingAbout the track marks To put a track mark manually while recording anAbout High-Speed Recording Precautions for performing long-hour stereo recordingStereo Long-Hour Recording Mdlp To check the remaining recording timeRecording FM/AM MW/LW Broadcasts Recording CD CD Synchronized RecordingPress AUX Press REC Mode to select the recording modeTo record a single track during play or pause Start playback on the external equipmentEditing MD Introducing MD Editing Functions Divide Function Join FunctionTo divide the joined tracks, see the Divide function Move Function+ 1 ? appears in the main display Select the track you want to move Press ¢orSelect the track you want to erase Press ¢ or Erase FunctionALL Erase Function Press SET Repeat to select all the tracks you want to eraseAssigning Titles to an MD Disc title entry screen appears when you press Press ¯or ¿to change the title entry modePress SET to enter the selected title entry mode Track title entry screen appears when you pressChanging the Title Using the Timers Setting the Clock Using Recording TimerHow Recording Timer actually works Using Daily Timer How Daily Timer actually worksTo turn on the Recording Timer, press SET To turn on the Daily Timer, press SET Press ¢or 4 repeatedly to adjust the minute Press SETVolume setting appears in the main display If the unit is kept turned on when the timer-on time comesUsing Sleep Timer Timer PriorityHow Sleep Timer actually works General Notes MaintenanceCleaning the unit Handling CDsMD Disc Types Utoc User Table Of ContentsAdditional Information Atrac Adaptive TRansform Acoustic Coding/ATRAC3Scms Serial Copy Management System Hcms High-speed Copy Management SystemMD Messages Malfunction has occurred duringMD is not loaded correctly There is no MD Troubleshooting SpecificationsJVC 1100TMMMDWJEM
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