Left front speaker works the rest dont and the sub makes a hum

It is a fully integrated system that is powered from the sub which contains the power board, the amplifier and heat sink, plus the processor. you could run one speaker using the onboard sound card.

The link shows the inner workings.

https://www.xbitlabs.com/creative-gigaworks-s750-review/

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Stupid question: does the sound still work? it could be the LED just died after continual use (rare, since they last a long time, but not uncommon).
If not... it could be the controlling circuit board died. In which case, unless you have electronics repair experience, it would be probably more worthwhile to just replace the speakers, as pricey a model as it is.

first fuse as standard is in the plug to the power adapter. The second fuse is located at the back of the box where the power lead goes into. It is covered so look closely you just need something flat to open it. I have the S750 and that is what im basing this on but if the s700 is the same then you will find this helpful. Sorry did not notice this before.
Hope this helps.

Try disconnecting both of the amp board power supply cable (the green one from psu to amp board)

For you, the s750 circuit diagram

cheers

I had an extra one but I sold it. According to creative labs they do not sell any replacement parts for the speaker systems. The best suggestion that I can give is to check craigslist and ebay for the control pods.

Change the fuse - located at the 220V input. Use a knife ti release it. Then the system will work again.

Same problem just went out after about 4 years.... weak lifespan for a 500 dollar system

based on my understanding on electronics. maybe the 3 speakers your talking about doesnt resoponds to the frequencies on the music you are playing because a 7.1 souround speakers, each speakers are designed to respond at a certain frequecies.

So try playing movies instead of music and try lowering or not connecting the rest of the speakers and listen closely to the 3 speakers your talking about if you hear any sounds at all...

 

hope it help...

 

send me feedbacks...

pls check your audio cable conection. bye