No power in the system

Check for power at unit . If there is power to unit check for blown fuse on circuit board or bad board .

CHECK FOR CLEARED COOLING VENTS & FOR PROPERLY WORKING COOLING FANS. THIS WILL CAUSE SHUTDOWN OF THE UNIT. IF ITS ALL CLEAR, YOU PROBABLY HAVE A POWER SUPPLY ISSUE.

Check sound from headphones. These models have been known to have bad headphone jacks that make the unit think there are headphones plugged in even when there isn't. Sometimes just plugging in headphones and unplugging them will fix it for a while.

Possible problem.. defective adaptor / power supply. Let it check by authorized technician near you.

If you wish to get some details; visit the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

Try pulling the power from the unit for a few minutes, the reconnect. Make sure you've got the surround settings correct. If that doesn't do it, you've likely popped the amp or the amp's power supply in the sub box.

When you said that you can hear the sound, what device is plugged in to the TV? Is it USB stick? HDMI cable for PC or DVD player? Or just the local channels using the antenna?

If the unit is under warranty (within a year from purchase in most cases) I would suggest for you to report it to Samsung so they can provide you a repair option as it would most likely be a problem with either the power supply or the board inside.

you can purchase this items thru phone calling jvc directly 1-800-252-5722 or on there website jvc.com. the remote will cost $27.01 and the manual $6.18 plus tax and shipping. you can pay with visa or mastercard. if you hear sound thru 2 speakers there's a surround button on remote that can get the rest of speakers working. or you will need to check speaker connection and set unit to right surround setting by pressing surround button.

Hi, The owners manual says that if the red light is flashing, it is an indicator that it is ready to be turned on (use remote or onboard on button); flashing red & green - too high temperature inside, the unit is overheated. Check and clean the air filters; If the red light is steady, abnormal condition and you have to call for service. A copy of your manual is available at http://www.eiki.com/resources/resourcedownload.ashx?filename=/ownersmanuals/om_xb25_20_sb20.pdf Hope this be of some help. Pls post again how things turn up. good luck and kind regards.

Hello Norticbeat, Here are some simple steps to diagnose the problem. Disconnect the subwoofer from the main unit. You will have those wires in your hands. Now connect a 1.5V battery (like ones in remote controls) to these wires. Polarity doesn't count. You should hear some sounds from your subwoofer. This will indicate that the speaker inside is working and isn't burned out or something. If it works the problem is either with your main unit or with the connection with it. Check the connector to see if it is in good form, connect only the left subwoofer and try to close your ear to it to see if you hear anything when you power on the unit, play music, power off or these kind of operations. If you hear some distorded noise or something you could have a burned out left power amplifier inside the main unit. First of all try to do those 2 checks and please post back your results. I will guide you through the next part. Good luck