JBL Televison & Video - Answered Questions & Fixed Issues

Question edited for clarity, proper 'make model (what it is)'. I can't find a manual, but they have a common theme. Remove the faceplate and press the Reset Button, then clean the contacts both sides with electrical switch cleaner or Isopropyl Alcohol. https://www.premiumleisure.com/Manuals/nov07/Hydro_Spa_JBL_Stereo.pdf https://www.rocktheboatmarinestereo.com/specs/MR18.pdf https://www.google.com/search?q=JBL+marine+MR-15b+manual ..

It sounds like the internal battery has failed. Try and claim on the warranty or ask for a repair.

JBL Support - Returns & Warranty

JBL https://ca.jbl.com > support-returns-and-warranty If you believe your product is malfunctioning during the warranty period, we can help!

Warranty

JBL https://ca.jbl.com > warranty Unless a different warranty period is stated in the Warranty Card provided with your JBL product, JBL warrants for a period of 1 year (5 years for any non- ... Troubleshooting help https://www.ifixit.com/Wiki/JBL_Charge_4_Troubleshooting JBL Charge 4 TroubleshootingiFixithttps://www.ifixit.com > Wiki > JBL_Charge_4_Troub...Make sure the charging light on the base of the device is blinking. If it is fully charged and still not turning on, the power button may be worn out or broken. ‎The Speaker Will Not Power... · ‎The Device Won't Connect to.....

Hi, it's sound like you've done your best and from my pov, you're not missing anything but just need to get the subwoofer repaired by the manufacturer or completely replaced. Thank you.

that humming sound 60Hz is a hint of short. inside it needs to be repaired in a shop. a shop can fix it. you have no tools or parts or tech skills to fix it inside. right? so get it to a shop or buy the service manual and have at it. find the short. (top cause bad CAPS)

Finding diagrams or service information is getting almost impossible to find anymore

Access free Product Manuals. Safe download. findproductmanuals.com I’m happy to assist further over the phone at https://www.6ya.com/expert/latoya_8ed1bf3dc615c15d

You are right about the caps. if the unit has a seperate power supply it would be better to replace it, you may also have trouble getting into the case if it is sealed well. It could also be a bad diode etc.

Go here and try the reset upgrade. http://electronicshelponline.blogspot.com/2014/09/factory-resetsoftware-update-dsp.html?m=1

Hi, To resolve the problem, I used my Iphone instead of my Computer to connect to the network. On the Iphone the network "None" was not show so I've manually connected to this SSID with no password. On the Iphone I then go to 169.254.1.1 to relink to my home WIFI :) Hope this will help :)

If you wish to buy a genuine speaker, you should contact the autorized service center for harman kardon. http://electronicshelponline.blogspot.com/

You could try switching around the cables but most likely the output driver transistors are blown.

we can check our remote controls the simplest way.. provided you have your cellphone with camera turn it On just like you are to take pictures then aim your remote to the camera press any of the button of the camera then you are suppose to see a light blinking. if there's no light check the battery or replace it with new ones..

Check its speaker first. If it is found OK, check and replace audio output board as card basis. Visit the site named 'Electro-help' for more details. Click this link. View it in 'Flip card' option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 900 posts to different brand TVs now.

go to http://www.partselect.com/God bless you

go please to www.fitness.manualsonline.com and download for free.God bless you

Check the remote control for its infrared emission. Check it with freash batteries.

There are two main areas to look at, one is signal strength. Many units have a threshold that is will allow stations to be selected. if the signal is weak, the tuner will not stop there.
The other common issue is Genra selection. If you have selected Rock, and the station that you want has listed something else, that will stop tuner from stopping on that station.

Try website like Remotes.com to buy an exact remote to the original remote.

try not to unmute it

The most obvious reason is an overheating issue in the Power Supply board. There are other ideas here, but you need to take it to a television engineer to diagnose https://www.google.com/search?q=television+will+suddenly+turn+off+every+4+minutes ..