Pulled the "extra" pin out so it would fit correctly then I used a broken tablet charger USB cord with the charging end cut off and the four wires stripped with the USB male I was I settled on an extra Microsoft PS/2 to USB adapter() I picked up for like a buck. Well it's not, it's one less pin than a PS/2, so then I still was hoping I had a keyboard or old mouse So I thought about it and kept looking at that Mini din and then realizing it looks like a Well I came up with nothing because my luck had it that there was vital missing information Through the sub volume knob(if you call a dial a knob). So my endeavor in this was to see how the speaker out port was pinned out so I could hook upĪ speaker and see if it was the line out of the input or if it would be volume controlled I always assumed it WAS a working standalone whether or not you had them connected because Mine was as supposed sub only (where did all the left and right sats go anyhow?)Īnd it worked fine(although low volume it still could be used)without the other speakers. Ok I know it's late in all this but I beat you all in this and wasn't even trying. Oh, and if you're here looking for a hack for a slightly different sub controlled by a 7833, the resistors you're looking for are attached to pins 13 and 14.
Altec lansing atp3 volume knob full#
I hooked up 4 bookshelf speakers plugged my phone in and cranked it to 11, no distortion, just loud clear, full of bass goodness. Now I can plug whatever speakers I want it, and it sounds amazing. Of course I jumped out the power control pin as well. I soldered the wire so that it lays on top of and bypasses the resistor, since I wanted all outputs to work as they should. So, I just ran 2 wires I soldered to the input jack pins. The side of the resistors that is closest to tda7433 is the satellite input, and the other is the sub. R75 is left channel,R49 is right channel. There are two surface mount resistors right next to the tda7433 I used a hardware hack, and it's far easier than others have explained here. I considered using your method, but I didn't want to waste using one of my arduinos. I know this is ancient, but I've just hacked a sub I found. He has asked for me to replace the screen, add carrying handles and paint it black. after the BT addition I wanted to keep it for myself :) But he is family, so I'll look for another one or better for mine. now he can power on and connect BT, or power on, flip switch and use any phono input. just power the BT with the 5vdc and connect output to a switch. Now he can connect his phone and listen like a quality stereo all with portability. Board covers all holes for a nice look and the seperating pins raise the board enough to allow the dongles out and the sound out. got a piece of foggy plastic (former cutting board) and topped the project with seperating pegs for looks.
added a 5vdc micro/mini USB output dongle and phono input dongle. I added the Left/Right speakers internally to the box and hot glued a box around them to isolate them from the base. In addition to your hack, I decided to make a great music box for my nephew. Taking many electronics courses both USA and GER, I'm always trying to repurpose devices. I´d be happy of you post a comment if any of this is useful to you, happy hacking!
Altec lansing atp3 volume knob code#
(google is closing down code so the source has moved to github: ) I've made the source code for the AVR I2C controller available at google code: Power the amplifier on by connecting the power pin to ground as shown in the pinout above, send the right parameters via I2c and eureka, we have a working subwoofer! :D Unfortunately Altec chose a cheap plastic to cover the back of the subwoofer and this plastic vibrates and makes a noise when the base is pumping :( Let me know if you find a solution to this (we are thinking of replacing it with wood). This is a pinout of the connection to the satellite (red connector in the picture above from Dells support page):Īfter studying the datasheet for TDA7433 and this page about I2C I wrote a controller program for a Atmel Mega8 using avr- libc and connected it to SDA and SCL together with 4.7 kOhm pull-ups (there are no pull-ups on the circuit board inside the ACS295). The speakers are controlled by a TDA7433 audio processor that speaks I2C with the controls on the satellite.