I have an onn cd boombox. It has display but there is no sound. How to repair it?

Question edited for a lot more clarity and it is an 'ONN' not an 'On.'.
Question moved from Cars and Trucks.

Here is the Manual

https://manuals.plus/onn/100070575-bluetooth-boombox-manual

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Unless the Boombox has Bluetooth and most don't, it is hard. You would have to have a Bluetooth transmitter attached to the Audio out.

https://www.google.com/search?q=Bluetooth+transmitter

https://www.google.com/search?q=onn+boombox

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If your onn bluetooth boombox is no longer able to read CDs when using battery power, it is possible that the batteries are not providing enough power to the CD player. CD players require a lot of power to spin the disc and read the data, and using low-quality or weak batteries may not be able to provide enough power for the CD player to function properly.
Here are some steps you can try to fix this problem:

1. Use high-quality batteries: Make sure that you are using high-quality batteries in your onn bluetooth boombox. Low-quality batteries may not be able to provide enough power for the CD player, and they may also leak or corrode, which can damage the CD player and other components.
2. Use fresh batteries: If you have been using the same batteries for a long time, they may have lost some of their charge and may not be able to provide enough power for the CD player. Try replacing the batteries with fresh ones to see if that helps.
3. Use rechargeable batteries: Rechargeable batteries may be able to provide more consistent and reliable power to the CD player than disposable batteries. If you are using disposable batteries, try switching to rechargeable ones and see if that makes a difference.

If these steps do not fix the problem, it is possible that there is a problem with the CD player itself. In this case, you may need to contact onn customer support for further assistance. They will be able to provide more specific troubleshooting steps and help you determine if the CD player needs to be repaired or replaced.

Walmart lists a Quick Start guide and a user manual for the CD Boombox with Bluetooth here: https://www.walmart.com/ip/onn-CD-Boombox-with-Bluetooth-Wireless-Technology/270807829 . The model number given by Walmart is AAABLK100009771 . The current link to the manual is https://cdn.richcontext.com/media/9932093061-48677ebef9a4a854895b9ebad6a20db7.pdf .

I hope this helps.

Cindy Wells

If it is brand new or under a year old then it should be under warranty, if new take it back to the shop or place you purchased it and tell them it's not working. Or you can contact the maker for a replacement or repair.

No, It doesn't look like it has a headphone socket. The Quickstart guide is here:

http://onnservice.com/wp-content/uploads/2016/04/ONA16AA005_QSG.pdf

Check the back of the unit for possible shorts in the speaker wires, no change! take the boombox to a service centre for a repair estimate.

go to the bosch website for answers

The protect message indicates that there is a problem with the final stage of the amplifier section. This unit will require repair as a reset will not clear this. There is an audio amp IC inside that needs to be replaced. Figure on about $15 or so for the part.

Dan