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Old 28th March 2011, 07:47 PM   #11
diyAudio Member
Join Date: Mar 2011
Location: Sussex
Default Storm 8 Subwoofer

[QUOTE=chris661;2515083]Nice work, it's good to hear of people solving their own problems.

UN-fortunately the rumble has returned in my Storm 8 Subwoofer. So I continued the regimen of changing capacitors. I did find I had mis-read the Amp Module number which is: TDA 7377. So I quickly (?) removed the wrong-numbered Amp (TDA 7375) and replaced it with the original TDA7377. But the rumble - which actually sounds like distant thunder - is still there. One Mylar I CANNOT find a replacement for is: 823K 100v. Maplins don't have any caps with '82' in the value. Short of cobbling one together in || there seems no answer to that problem. This Sub is powered from an external 19v A/c plug-in Xfmr. There's a full-wave rectifier on one of the PCBs. So my 'Eureka moment' has gone up the spout and I humbly ask for any ideas.... Michael
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Old 29th March 2011, 12:41 PM   #12
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Join Date: Mar 2011
Location: Sussex
The problem has now been solved in my Storm 8 Subwoofer. It was nothing to do with the Woofer or its internal electronics... it was a faulty plug-in A/C PSU. I have now replaced this with the PSU from a redundant scanner. Such is life. Just thought everyone (anyone?) following this thread needs to hear of a satisfactory conclusion. (having said all that... will the rumble return?? watch this space...)
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Old 30th March 2011, 12:48 PM   #13
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Join Date: Mar 2011
Location: Sussex
Back to the Storm 8 Subwoofer. The problem was the plug-in-the-wall A/C 12v power supply unit. I replaced it with a redundant 12v. PSU for a scanner and the Subw. is now OK
Michael UK
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