Hacking the Logitech Z5500

hmm. No, with music no.

One question. When the amp is supposed correctly "ON" with the console but the signals wires in the air. The only speaker which sounds is the central speaker. Other speakers doesn't sound.

I don't know why do that.

More info:

The voltages when the console is ON, in de blue and white wires (previous I connect those to +8v) now they have 2,6v and 2,4v respectively :S. Is this correct? Maybe the console doesn't working well..

If I test with music, i think that only sound the central speaker :(
 
This indicate a problem in the "power on" circuitit could be in the console or on the pream board
turn on with the blue,white wire to +8v abd all channels should have sound
also try with orange wire maybe has diferent functions than my version
I start with black-white wire to gnd and white wire to +8 and sound is perfect
Record a video with your n73 :d to see what is going on
http://img341.imageshack.us/img341/165/110509231448.jpg