Greetings all 🙂
I am in the process of attempting to repair the amp module out of a Biema 6000T active subwoofer...
http://www.biema.com/html/product/goldsangpro/6000T-1.htm
I use these subs at ourdoor bush doofs,so they cop a fair beating and are run hard, albeit within their limits.
now the problem is, one of these subs had a can of bourbon knocked over on it,which ran right over the power amp module(power supply and control boards are all fine 🙂 ) and i only realized this once the sub stopped working. upon visual inspection numerous of the output transistors (Toshiba 2SC5198 and 2SA1941) had literally burnt themselves to a crisp, and produced enough heat to desolder themselves, also numerous resistors have been totally charred beyond recognition, so cant figgure out what values.
I emailed Biema on friday asking for a technical/service manual and am waiting for a reply, in the mean time, i am catalogueing all components that are faulty(upon visual inspection only), for now, and then will clean as much grit and sugary slime off the boards as possible...but after that much, im lost... so any guidance would be muchly appreciated 🙂
also it is no longer under any warranty from manufacture, and have taken the sub to 2 places to see if they would take up the task, and both refused...so iv taken on as much of the task myself as i can(not sure how wise this move has been!)
Thankyou for any assistance that may be rendered,
Nathan O'Grady
I am in the process of attempting to repair the amp module out of a Biema 6000T active subwoofer...
http://www.biema.com/html/product/goldsangpro/6000T-1.htm
I use these subs at ourdoor bush doofs,so they cop a fair beating and are run hard, albeit within their limits.
now the problem is, one of these subs had a can of bourbon knocked over on it,which ran right over the power amp module(power supply and control boards are all fine 🙂 ) and i only realized this once the sub stopped working. upon visual inspection numerous of the output transistors (Toshiba 2SC5198 and 2SA1941) had literally burnt themselves to a crisp, and produced enough heat to desolder themselves, also numerous resistors have been totally charred beyond recognition, so cant figgure out what values.
I emailed Biema on friday asking for a technical/service manual and am waiting for a reply, in the mean time, i am catalogueing all components that are faulty(upon visual inspection only), for now, and then will clean as much grit and sugary slime off the boards as possible...but after that much, im lost... so any guidance would be muchly appreciated 🙂
also it is no longer under any warranty from manufacture, and have taken the sub to 2 places to see if they would take up the task, and both refused...so iv taken on as much of the task myself as i can(not sure how wise this move has been!)
Thankyou for any assistance that may be rendered,
Nathan O'Grady