Hi, newbie to the site but it seems resourceful, heres a little background on my project
I bought a set of creative gigaworks t3 speakers as an ebay bargain, unfortunately, after a few weeks usage they start to power cycle during usage, they are now unusable, popping on and off after a few minutes of low volume use.
I opened them up to try and diagnose the failure, thinking there would be something obvious, but its beyond my basic electronics.
I am now thinking baout retrofitting a tda2030a or lm1875 ebay amp kit, ive heard the lm1875 is the way forwards so am looking at this:
Assembled 2.1 Channels LM1875 NE5532 Audio Power Amplifier Board 25Wx2+50W(Sub) | eBay
on my reasearching i discovered these kits required an AC input, which i had never considered before, anyway, the standard sub has a nice torroid inside:
![Click the image to open in full size.]()
![Click the image to open in full size.]()
![Click the image to open in full size.]()
so my thoughts are, that supply might be usable
i will dig out hte part number in next few days, and test the trasformer output as the speakers pop in and out, to ascertain if its suitable and working.
other thoughts, i would like to retain the factory fittings as much as possible so will mean some modification to the standard PCB
![Click the image to open in full size.]()
as you can see the in/outs are enclosed in the plastic housing at the top right of the picture, power comes in at the top left
do my plans make sense so far? am i missing anything fundamental? all thought welcomed, im not unexperienced with electronics (built and installed megasquirt engine managemnt on my BMW) but i am totally new to HI FI electronics.
Do you think the LM1875 board will be similar sound quality to the factory arrangment?
Thanks for your time, im hoping to keep this thread up to date with pictures and info
Alternatively, if anyone knows how to fix my problem lol
I bought a set of creative gigaworks t3 speakers as an ebay bargain, unfortunately, after a few weeks usage they start to power cycle during usage, they are now unusable, popping on and off after a few minutes of low volume use.
I opened them up to try and diagnose the failure, thinking there would be something obvious, but its beyond my basic electronics.
I am now thinking baout retrofitting a tda2030a or lm1875 ebay amp kit, ive heard the lm1875 is the way forwards so am looking at this:
Assembled 2.1 Channels LM1875 NE5532 Audio Power Amplifier Board 25Wx2+50W(Sub) | eBay
on my reasearching i discovered these kits required an AC input, which i had never considered before, anyway, the standard sub has a nice torroid inside:
so my thoughts are, that supply might be usable
i will dig out hte part number in next few days, and test the trasformer output as the speakers pop in and out, to ascertain if its suitable and working.
other thoughts, i would like to retain the factory fittings as much as possible so will mean some modification to the standard PCB
as you can see the in/outs are enclosed in the plastic housing at the top right of the picture, power comes in at the top left
do my plans make sense so far? am i missing anything fundamental? all thought welcomed, im not unexperienced with electronics (built and installed megasquirt engine managemnt on my BMW) but i am totally new to HI FI electronics.
Do you think the LM1875 board will be similar sound quality to the factory arrangment?
Thanks for your time, im hoping to keep this thread up to date with pictures and info
Alternatively, if anyone knows how to fix my problem lol