What does a noise from the rear of the main unit of my JVC Stereo System mean?
- BBryan RobbinsSep 14, 2025
The noise from the rear of the main unit is likely the internal cooling fan. This is normal and prevents overheating.

What does a noise from the rear of the main unit of my JVC Stereo System mean?
The noise from the rear of the main unit is likely the internal cooling fan. This is normal and prevents overheating.
| Brand | JVC |
|---|---|
| Model | UX-QD70SUB |
| Category | Stereo System |
| Language | English |
Safety precautions for electrical risks like shocks and fire.
Explanation of the power button functionality and standby lamp behavior.
Precautions against blocking ventilation openings to prevent overheating.
Important safety information and warnings for laser product components.
Diagram illustrating required ventilation clearance around the front of the unit.
Instructions on using the remote to control a TV.
Instructions on how to connect external devices and antennas to the main unit.
Guide to connecting AM and FM antennas for optimal radio reception.
Instructions for connecting the supplied speakers to the main unit.
Instructions for connecting the main unit to a television for video output.
General guide to basic operations and settings of the main unit.
Step-by-step guide to setting the system's clock for accurate timekeeping.
Instructions for playing back discs, including loading and starting playback.
How to resume playback from a stopped point using the RESUME function.
How to select the audio language for DVD playback from available options.
How to select the subtitle language for DVD playback from available options.
How to adjust picture settings like GAMMA and BRIGHTNESS using VFP.
How to create a custom playback sequence of tracks or chapters.
How to play tracks in a random, shuffled order.
How to set playback to repeat specific tracks, groups, or the entire disc.
How to set language preferences for menus, audio, and subtitles.
How to adjust picture settings like monitor type, source, and screen saver.
How to create a custom playback sequence of up to 32 tracks on MDs.
How to play tracks in a random, shuffled order from an MD.
How to set playback to repeat specific tracks, groups, or the entire MD.
How to search for tracks or groups by title on an MD for efficient navigation.
How to record entire discs (CD, DVD) to an MD for digital archiving.
How to record specific tracks from discs or MDs, including handling of DVD VR.
How to program tracks for recording from discs or MDs in a desired order.
How to record external audio sources like radio, tapes, or AUX inputs to MDs.
How to edit disc or track titles using the remote control.
General instructions for assigning titles to MDs, tracks, and groups.
How to split a track into two separate tracks on an MD.
How to merge two adjacent tracks into a single track on an MD.
How to reposition a track within an MD to a different track number.
How to delete a specific track from an MD.
How to delete all tracks from an MD simultaneously.
How to create a group of tracks that are not registered in any existing group.
How to add an existing track to a specified group as the last track.
How to split a group into two separate groups on an MD.
How to merge two adjacent groups into a single group on an MD.
How to reposition a group on an MD to a different group number.
How to cancel a specified group or all groups on an MD.
How to delete a group and all its tracks from an MD.
How to set the unit to turn off automatically after a set time period.
How to set the unit to record broadcasts or other audio sources automatically.
Details on preparing to record using the timer function, including selecting sources.
How to set the unit to play back audio sources at a scheduled time.
Instructions for setting up the playback timer with source, time, and day selection.
How to use the AV COMPU LINK system for simplified operation with compatible TVs.
Explains various error messages related to MD operations and their solutions.
Provides solutions for common operational problems and malfunctions encountered with the unit.
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