Audio Project Amplifier Speaker Loudspeaker Kit
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My new LM4781 6-channel project - Click HERE for Original Thread
microJean
I've just finished the board for my new 6-channel audio amplifier, with microcontroller. The amplifier is controlled via infra-red and some buttons and has a 4-line LCD.
I also used LM1973 - 3 channel digital controlled volume circuit.
Here are the schematics and pcb's layers.

http://www.microjean.go.ro/sch.gif - schematic
http://www.microjean.go.ro/top.gif - top layer
http://www.microjean.go.ro/bottom.gif - bottom layer
http://www.microjean.go.ro/silk.gif - silk-screen
maxw
post pics when its built:)
SheldonD
I get 403 forbiffen on all ypur pics and you do not accept email
maxw
quote:
Originally posted by SheldonD
I get 403 forbiffen on all ypur pics and you do not accept email

Try clicking the links to the pics then adding a space to the end of the URL and then pressing enter:smash:
SheldonD
thank you, that works fine, i have not hit this
before is a hiddden character I guess
Alphas
:eek: wow

Please post the finished product as soon as possible!
PGPfan
Newbie to the board, but just wanted to say that this is indeed a very impressive project. Any updates?

Thanks!

-PGPfan
microJean
I've made a lot of changes. I'll post the updates soon...maybe monday.

It's stil in a project fase because I want to think a lot about it... rush is baaad!

There's a new processor, temperature sensor, PWM controlled fan, LCD, keyboard, infrared and now I'm working on the opto-mecanical volume control (almost like the mecanical ball-mouse technology).
roibm
How do you plan build the boards?
microJean
I'll send the gerber files to a PCB manufacturer in Bucarest :D .
But as I said before, no rush. It's a single board witch will be the pattern for the case construction (all connectors for inputs, buttons and speakers are planted on board)
roibm
quote:
Originally posted by microJean
I'll send the gerber files to a PCB manufacturer in Bucarest :D
Would you mind contacting me via email? :hot:
microJean
Here are the updates!

http://microjean.go.ro/
Alphas
Microjean, could u email me at james_ngsz@yahoo.com?

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