Question about Creative Labs Gigaworks S750 Computer Speakers

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I have a Gigaworks 750, the Audio Pod is not working, however, there is power going to the subwoofer though the power light is flickering. Hope you can help me in solving the problem. Thanks

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I did fix this problem and the whole bunch of other ones with the s750 system.

"light is flickering" is a very common! It shows that there is a problem with STANDBY power supply:

1) Yellow glue became conductive (needs to be completely removed)
2) Capacitor malfunctioning C61 (68uF 450)

3) mine had TH1 cracked (replaced from PC power supply) and D9 diode.

If this successfully fixed, you will be able to get 2nd stage power supply on (Relay or power on button)

If you will have problems there, there is a whole bunch of test needs to be done (capacitors, IRF740 etc.)

Posted on Sep 24, 2010

  • simon_randal Sep 24, 2010

    Many thanks for showing what the host of potential problems are with the S750. However I am no expert when it comes to sorting this out. Do you know of somebody who is able to solve the problems? I am in the U.K. Thanks

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It looks like you have posted this before. Unfortunately, I don't know what you have tried so I may be repeating some of your earlier troubleshooting.

The subwoofer needs its own power supply to function properly. if it isn't getting enough power, the sub will not work at all.

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http://forums.creative.com/t5/Speaker-Systems/GigaWorks-S750-power-problems-green-LED-faded-and-flickering/td-p/547311;jsessionid=9B7C9D2D939336148A9036D7E7D18A12

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If you check the Creative forums there is a thread there where a few people have started to fix problems like this permanently and they have helped quite a few people fix their problems. I would only suggest checking it out if you have any electronics experience (soldering, and basic troubleshooting minimum). Otherwise I would send it back but keep in mind that this is one of a few common problems with the S750's and you are likely to have other problems in the future unless you take measures to fix the problem that creative has not.

I would also like to point out that your problem would be a short on one of the amp boards after the power regulators, very likely one of the STA575 amplifier ICs. Those are not easy to find but it is possible to find replacements.

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