Why is my jbl boombox not charging or powering on?
Why is my jbl boombox not charging or powering on?
crwdns2934109:0crwdne2934109:0
Why is my jbl boombox not charging or powering on?
crwdns2934109:0crwdne2934109:0
This may help https://support.jbl.com/us/en/howto/batt....)
crwdns2934105:0crwdne2934105:0
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crwdns2942667:0crwdne2942667:0 35
Hi @tim60682,
have you checked that there's 19V DC on the output plug of the power adapter?
Have you tried a different, compatible, known working adapter to see if the speaker charged/turned on OK?
What have you tried?
crwdns2934271:0crwdnd2934271:0 jayeff crwdne2934271:0
I did a complete disassembly of my JBL boombox one. I completely removed the battery from its compartment and tested it on a multimeter it showed 7.3 DC volts. Next with the battery still unplugged from the unit I plugged a 20v 4.5 amp aftermarket charger to the outside port I tested the inside PCB plug to the motherboard and it showed 19.5 volts. I have checked for a continuity and all the circuits none are showing bad. It is still a brick pick a number if anybody has any ideas or pointers please I could use that. You conclusion at this point I would say it's either something bad on the motherboard or a software issue / firmware that I cannot update because it will not power on.
crwdns2934271:0crwdnd2934271:0 Randall J Hole crwdne2934271:0
@randalljhole what voltage do you get on the battery connector when you plug the charger in?
crwdns2934271:0crwdnd2934271:0 oldturkey03 crwdne2934271:0