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If you have a non-original stereo, there may be inline fuses in the wire harness leading to the stereo. Look under the dash with a flashlight and see if you can find the harness. Alternatively, you can pull the stereo from the dash and look at the wires that way.
The speakers can be checked by using a 1.5 volt battery. Unhook the speaker wires from the back of the stereo. Then, using jumper wires, MOMENTARILY connect the battery to each pair of speaker wires. If the speaker is good, you will hear the speaker cone move (it will make kind of a scratching noise) as the battery is connected.
If the speakers check out, and you are SURE that the stereo is receiving power and ground at all the correct points, then I'm afraid that your stereo is likely damaged.
Make sure that you are using the Audio Out ports (not one of the audio in). Next go into the menu. Select the Audio setup option and see if there is a line for enabling the external speakers. (Often this corresponds to turning off the internal speakers but not always.)
I hope this helps. I'm not familiar with the specs of Techwood TV models. Some TVs only have an headphone/earphone (3.5 mm) jack as their audio out. In that case, you'll need an adapter to convert the RCA audio to the headphone jack.
This can due to loose connection in the stereo cable (broken wire). and also do you have earth wired to the system or the output device?
This is how to check a broken wire, just simply remove the stereo jack coming from you device or PC.
make sure you remove both ends, see whether the sound is gone.
if you don't have a earth wired, please use a proper three pin plug.
if this doesn't work, you have problem with the sound amplifier inside the sub-woofer.. you need a repair :(
There is not fuse for the speakers themselves. The speakers maybe blown out. I would take a speaker out and connect it to the home stereo and see if it works. I would check to see if the speakers are plugged in also.
Yes. You can. First, you need a cable that has a stereo pin called stereo jack (the type that has on ear phones/head phones) on one end and component cable terminals (the type that comes with video/ audio left and right) on the other end. To further explain, these terminals come in yellow red and white colors. You only need the red and white ones. This is available at electronic stores. Otherwise a person who service electronic equipments can easily make one. Basically, this cable will have a stereo jack (small one) on one end and split into 2 cables with the red and white terminals. Once you have this cable, connect the stereo jack to the ear phone socket of your computer and connect the other end to the audio input of your Techwood receiver. You can select anyone (CD, DVD or TV). These inputs are right above the speaker wire connections. Be careful to connect to the socket that say "in" . Now, let us assume you have connected to the CD, select your source as CD on your techwood receiver. Play music on your computer and you should be able to hear the output through your Techwood receiver. Good luck
Try looking in the audio settings,it might be configured for stereo/mono or any number of surround sound settings e.g; 5:1, 7:1 In which case it might shut off the power to the circuit board inwhich the speakers are connected.If that fails .......Take it back!! Either the connection inside the speakers is faulty or the connections in the unit are faulty.