JVC KS-FX820R, KS-FX850R, KS-FX834R, KS-FX835R manual Troubleshooting, Symptoms Causes Remedies

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TROUBLESHOOTING

What appears to be trouble is not always serious. Check the following points before calling a service center.

 

 

Symptoms

 

Causes

 

 

 

 

 

Remedies

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A cassette tape cannot be

You have tried to insert a

Insert the cassette with the

 

 

 

inserted.

cassette in the wrong way.

exposed tape facing right.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cassette tapes become hot.

This is not a malfunction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tape sound is at very low

The tape head is dirty.

Clean it with a head cleaning

 

 

 

level and sound quality is

 

 

 

tape.

 

 

 

degraded.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Sound is sometimes

Connections are not good.

Check the cords and

 

 

 

interrupted.

 

 

 

connections.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sound cannot be heard from

The volume is turned to the

Adjust it to the optimum level.

 

 

 

the speakers.

minimum level.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connections are incorrect.

Check the cords and

 

 

 

 

 

 

 

connections.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SSM (Strong-station

Signals are too weak.

Store stations manually.

 

 

 

Sequential Memory)

 

 

 

 

 

 

 

 

 

 

 

 

 

automatic preset does not

 

 

 

 

 

 

 

 

 

 

 

 

 

work.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Static noise while listening

The antenna is not connected

Connect the antenna firmly.

 

 

 

to the radio.

firmly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• “NO DISC” appears on the

No CD is in the magazine.

Insert CDs into the magazine.

 

 

 

display.

 

 

 

 

 

 

 

 

 

 

 

 

 

CDs are inserted incorrectly.

Insert them correctly.

 

 

 

 

 

 

 

 

 

 

 

• “RESET 8” appears on the

This unit is not connected to a

Connect this unit and the CD

 

 

 

display.

CD changer correctly.

changer correctly and press

 

 

 

 

 

 

 

the reset button of the CD

 

 

 

 

 

 

 

changer.

 

 

 

 

 

 

 

• “RESET 1-RESET 7”

 

 

 

Press the reset button of the

 

 

 

appears on the display.

 

 

 

CD changer.

 

 

 

 

 

 

This unit does not work at

The built-in microcomputer

Press and hold both SEL and

 

 

 

all.

may function incorrectly due to

 

 

 

 

 

at the same time for

 

The CD changer does not

noise, etc.

several seconds to reset the

 

 

 

work at all.

 

 

 

unit. (The clock setting and

 

 

 

 

 

 

 

preset stations stored in

 

 

 

 

 

 

 

memory are erased.) (See

 

 

 

 

 

 

 

page 3.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENGLISH

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Image 45
Contents Instructions KS-FX850R/KS-FX835R KS-FX834R/KS-FX820RContents How to reset your unit Adjust the volume Turn on the powerAdjust the sound as you want see pages 21 Basic OperationsListening to the radio Radio Basic OperationsStart searching a station To tune in a particular frequency without searchingFM station automatic preset SSM Storing stations in memoryPress and hold both buttons for more than 2 seconds Manual preset Select the FM1 bandTune into a station of 88.3 MHz Select the number 1 6 for the preset station you want Tuning into a preset stationWhen an FM stereo broadcast is hard to receive To restore the stereo effect, press the button againWhat you can do with RDS EON RDS OperationsMode TA Standby Reception Using Standby ReceptionPTY Standby Reception To deactivate the TA standby mode, press TP RDS againFinish the setting Selecting Your Favorite Programme for PTY Standby ReceptionSearching Your Favorite Programme Press and hold SEL select for more than Seconds to call up the Preferred Setting ModePSM see Select PTY Srch search if not shown onTo search your favorite programme type Select one of PTY codes stored in preset number buttons 1 toPTY codes Other convenient RDS functions and adjustmentsChanging the display mode while listening to an FM station Setting the TA volume levelAutomatic clock adjustment Listening to a tape Tape OperationsClose the control panel by hand Select the tape directionProhibiting cassette ejection To stop play and eject the cassetteTo fast-forward and rewind a tape Finding the beginning of a tune Other convenient tape functions Skipping the blank portions on the tapePlaying the current tune repeatedly Adjusting the sound Sound AdjustmentsSelect the item you want to adjust Adjust the levelSelect the sound mode you want Using the Sound Control MemoryIndication For Preset values Selecting and storing the sound modesRecalling the sound modes Call up the sound mode you want to adjust Storing your own sound adjustmentsRepeat the same procedure to store other settings To reset to the factory settingsOther Main Functions Setting the clockBasic Procedure Changing the general settings PSMPress SEL select when the setting is complete Selecting the clock display Canceling Advanced SCMSelecting the level display To check the other information during playSelecting the telephone muting Selecting the dimmer mode only for KS-FX850RSelecting the external component to use Turning on/off the key-touch tone only for KS-FX850RHow to attach the control panel How to detach the control panelDetaching the control panel Unlock the control panelRemote Operations Installing the batteryUsing the remote controller Playing CDs CD Changer OperationsTo fast-forward or reverse the track To go to the next tracks or the previous tracksTo go to a particular disc directly Selecting CD playback modes To play back tracks at random Random PlayTo play back tracks repeatedly Repeat Play External Component Operations CDSelect the external componentPreparations Tuning into an ensemble and one of the services DAB Tuner OperationsSelect the DAB tuner To restore the FM/AM tuner Select an service you want to listen toService name Ensemble name Channel number Frequency Start searching an ensembleSelect a service of the ensemble you want Storing DAB services in memoryTune into an ensemble you want Follows DABBand/preset number and Memo flash alternately for a while Tuning into a preset DAB service Select the number 1 6 for the preset DAB service you wantSelect the DAB band DAB1, DAB2, or DAB3 you want What you can do more with DAB While receiving a DAB serviceTo use Alternative Reception While receiving an FM RDS stationTo clean the heads MaintenanceTo keep the tape clean To extend the lifetime of the unitSymptoms Causes Remedies TroubleshootingFM Tuner SpecificationsMW Tuner LW TunerHaving Trouble with operation?

KS-FX835R, KS-FX820R, KS-FX834R, KS-FX850R specifications

The JVC KS-FX850R, KS-FX834R, KS-FX820R, and KS-FX835R are part of JVC's esteemed line of car audio receivers that cater to both audiophiles and casual listeners alike. These models bring together several key features and advanced technologies that enhance the driving experience through superior audio quality and convenient functionalities.

At the core of these receivers is the ability to provide outstanding sound performance. With built-in MOSFET amplifiers, they deliver powerful output, ensuring every note and beat is emitted with clarity and precision. The receivers support various sound adjustments through equalizers, allowing users to customize audio settings to their liking. The KS-FX850R and KS-FX834R stand out with their advanced 3-band equalizer, providing more control over bass, midrange, and treble frequencies.

For connectivity, these models support multiple audio sources. They feature front-panel auxiliary inputs and, in some cases, USB ports, making it easy to plug in smartphones, portable music players, or USB drives. The KS-FX835R, in particular, offers Bluetooth integration, allowing for hands-free calling and wireless audio streaming, which is an essential function for modern drivers seeking convenience and safety.

In terms of media compatibility, all four models support CD playback, but they also excel at playing various digital formats. This versatility ensures that users can enjoy their favorite playlists without worrying about file compatibility. Additionally, the KS-FX835R and KS-FX850R offer advanced RDS (Radio Data System) functionality, which provides information about the radio station being listened to, such as song titles and artist names.

Another noteworthy feature is the display quality. The receivers exhibit clear, bright displays that ensure readability, even in bright sunlight. This design not only enhances usability but also contributes to the aesthetic appeal of any vehicle's interior.

Lastly, the ergonomic controls across these units make them intuitive to use, with easily accessible knobs and buttons designed for drivers to adjust settings without distraction. All in all, the JVC KS-FX850R, KS-FX834R, KS-FX820R, and KS-FX835R offer a well-rounded audio experience, catering to diverse preferences while integrating modern technology for improved functionality on the road.