Logitech z-680 amp repair

[pacificblue]

Don't expect to get much money for them. You can buy a new TDA7293 for 2,35 €, which translates to ~3,50 US$. The interesting and expensive parts are transformers and heatsinks.

 

[jaycee]

Is this the type of speaker kit capable of decoding Dolby AC3/DTS from an optical in? Someone might be willing to give you some cash for the PCB that does this particular bit!

 

[star882]

I would not recommend bridged LM3886 amps or any chipamps really to drive a 4 ohm sub. For this you really need a discrete amp with a decent heatsink and capable power transistors, especially if you like to pump bass. As the destroyed chip shows, chip amps just do not have the SOA (safe operating area) for this.

You could use the surviving chips to drive the satellite speakers. They are ample for this task.

I'm also against those chinese kits on eBay. People have bought them here and said that they come with fake parts. It wouldn't surprise me.

The TAS5630 can actually handle 2 ohms in single channel BTL mode and can output as much as 600w into such a load.
http://focus.ti.com/docs/prod/folders/print/tas5630.html
(It's a hybrid digital, so it's smug, too!)

 

[racerhoze]

The control pod has an optical and coaxial input, so I am assuming yes it has the decoding ability in it somewhere. Maybe I can trade someone some pieces for an amp?

 

[racerhoze]

anyone?

 

[pacificblue]

Put it in the Vendor's Bazaar