I've seen many different projects here. I want to show something different now. A few months ago a friend gave me LCD TV with a broken display. I disassembled it and remove the panel. Do you think is possible to use these parts for some custom project?
I found user manual and met with basic functions and technical specification.
TV has a digital stereo amplifier 2 x 8 watts, 8 ohms. Line input, USB input.
I connected CD player to the line input and sound was good,
but no bass, TV has small speakers.
I connect USB flash drive with music files.
According to the user manual, press the button "HOME", then choose USB and choose file.
All this becomes easier when you have a screen to watch where navigate.
When no screen, you need to find the right combination of buttons to reach the first recorded file and play it.
I started doing experiments with various combinations for three hours, but without success.
I was desperate and I gave a break.
After a while I kept trying and I was lucky - I was able to play the file without using a screen.
I wrote the key combination and then I remembered.
Now I can use an audio amplifier of broken TV to listen to music from a line input or USB memory.
To be continued...
In theory, when decreasing from 8 to 4 ohms, the power of 8 watts should be doubled - 16 watts per channel. In fact, I am quite pleased with the sound of these speakers. They have good bass, good mid and high frequencies.
Those are not cheap speakers. You'll probably blow the amp running high current. I have thought about doing this with an old iPhone dock but generally speaking it easier and cheaper to buy a new one with all the same features. I picked up a cheap teac freestyler and it rocks my work desk.
Pros and cons of the project: + Light weight - about 2-3 kg. + Easy to use. + Good sound. + Cheap. (I bought the speakers with vouchers, and all the other parts were available)
- works only on AC electricity. - is managed only by remote control. - there is no information about the files being playback. This problem I solved by making a paper list of files stored on the USB memory. For easier navigation, I've recorded mostly mixes, or album as a single file.
In use, leave the top cover open and this improve cooling: This hole also serves as a bass hole. Here's a short demo video: (True sound is much better than that, but my camera does not record the sound perfectly)
Yes, this project was experiment and fun. Experiment, because I did not know what would happen... Fun, because the work was enjoyable... Now I have a music box, unique and different than anything conventional.
When I was filming this video last week,
the box was only half covered, but now it's finished as the last picture. This song is part of my mix of 80s.