20 Most Recent Dell Jbl Inspiron Duo 1090 Audio Station Wmfd4 9hcmg Pcfgj W/no Ac Adapter Rj45 Questions & Answers

I had the same issue. I tried opening the dock and could not find anything wrong. It seems the charger was delivering sufficient voltage. So I disconnected power to the charger and reconnected couple of times and it started working again. My charger has a LED light and based on the brightness of the light you can findout if the output voltage is close to 20 volts.

There are lots here https://www.google.com/search?q=dell+dj30+3.7v+li+battery ..

funny thing about speakers is that they need an enclosure to work properly in the unit has a back and the car has a door skin or other enclosure to work in

Back it up to a computer and do a full factory reset. I just read your question tagged onto an old post. You should not be using this device to store important class notes. It is so old it could fail at any time. Notice in the link what Dell says in the manual Whenever I turn my Dell DJ on, it starts up in Rescue Mode. Your Dell DJ's firmware or operating system may be damaged. Go to support.dell.com for the .. https://www.google.com/search?q=Dell+Jukebox+Rescue+Mode ..

Click here to follow these steps https://mybestspeakers.com/how-to-take-apart-speakers-with-no-screws/

If there is no separate power supply the usb plug must be used in order to provide power for the speakers, but whether the analogue cable must be plugged in or not will depend on the internal construction and specification of the speakers. I suggest you initially use the usb and if there is no sound and no on-screen instructions, plug in the analogue line. If there is a separate power supply the speakers are probably and either/or design.

what is 'dragging'? most likely dirty contact on the plug from computer to the speakers.

Windows has a troubleshooter for the audio system in most computers. Get the "fix" here: https://support.microsoft.com/en-us/help/4026994/windows-fix-sound-problems Good luck!

Is there a battery back up somewhere on your computer? It could have failed. Or at least something connected with it. It could be an electronic fault. Bad capacitors etc. I assume they have ruled out a virus?

Get a wired lapel microphone and plug it into the microphone input on your Dell. The onboard mic is designed to record all ambient sounds. You want a different product to get the result you're looking for.

you need an amplifier

Sorry we no sources.

http://www.winzipdriverupdater.com/du/wddc2/index.php?gclid=Cj0KEQjw4_DABRC1tuPSpqXjxZwBEiQAhMIp6xjEQvMY5Q7_6N8A6M3hD4RN47VAdMlXQPa0AyNAfyUaAlDa8P8HAQ

Forget the upgrade to windows 10, Dell doesn't recommend you do this as it disables some programs. I have the same computer.

adjust the balance knob to center position

My daughter had the same trouble with her Dell computer. The guy who was reloading Windows found the additional drivers on the Dell website. The Dell recovery disc supplied with a new machine already contain those drivers.

Try plugging a pair of headphones or earbuds or a different pair of known-working speakers (in places of the current speakers) - if you get sound with the "replacements", then there's a problem with the "current" speakers; otherwise, the problem is the sound on the unit. Alternatively, plug the "current" speakers into a different (preferably, known-working) unit. If there's still no sound, then there's a problem with the speakers; otherwise, the problem is the sound on the original unit.

Joseph Nucifora, Unfortunately, Dell does not have any wiring diagrams for speakers or sub-woofers. They would replace them if they are broken and are under warranty. Thank You, Dell-Jesse L Dell Social Media and Communities