Harman kardon subwoofer ts18 sound off and on

SOURCE: Harman Kardon go + play problem

Hi and welcome to FixYa,

Appreciate the direct "Ask Me".

Initially, pls try cleaning the battery terminals. In some instances, it may be necessary to scrape them to remove corrosion. Still there are times they may have to be bent or stretched to ensure that they provide more pressure to the batteries. Alternately, pls try to confirm that the AC adapter is working by checking for the presence of voltage on the plug/connector with the use of a voltmeter.

Should the above not address your concern, then it is most likely that the problem is internal electronics and the unit is simply going into protective mode. You then have a choice of performing a DIY (do-it-yourself) or seeking the services of a qualified professional.

Good luck and Thank you for using FixYa. Happy Holidays.

SOURCE: taking apart harman/kardon subwoofer

turn the sub upsidedown, carefully remove the clear rubber feet (these are a dome fitted over a mushroom top), using the toothed gripper cutout of a pair of pliers (when closed it is the eye shaped opening visible on one side), grip the mushroom firmly but not so hard as to crush the mushroom and gently ease clockwise and anticlockwise (the mushroom is at one end of a clear plug blocking access to the four screws that hold the two parts together.
Be carefull to use the correct size screwdriver so as not to damage the screw heads as they are tight.
On reassembly, you may need to use glue to replace the rubber feet if the mushroom becames damages during removal.

SOURCE: can I conect harman Kardon avr 230 to apple tv

Yes, although it (AVR) does not support HDMI only component video.

Connect the audio to the receiver and the video directly to the TV if you have inadequate video inputs, or want to take advantage of the HDMI.

Testimonial: "cheers, have a good year."

SOURCE: harman kardon audio system for harley davison not calibrated

i have the harmon kardon stereo for harley and the sound keeps going out on it. This is the fourth unit that the same thing has happened too. Its like the unit goes into mute mode but its not. everything works but the sound. can u help me please.

SOURCE: AirPlay won't connect to harman kardon receiver

My iPhone has a button at the bottom right-hand side of the screen (next to the volume control), that gives me the option to listen on the phone or to have it run on the Harman Kardon airplay. It automatically turned on the receiver and played the sound of the video in surround sound. It looks like a rectangle with a triangle at the bottom of it.