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Old 7th November 2012, 03:25 PM   #11
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Default Not btl but paralelling?

Thank you Virpz for letting us know how to "BTL" this thing via the scematic (is it for the 2.2-version?) I bougt one of these boards cheap(est?) from goodluckbuy two months ago. It lasted some time and suddenly went up in smoke for no obvious reason. Apart from a little soldering and moddin... Maybe it has to do with the strange warning about "Europe" and voltage. But I used only 20 volts and 8 ohm. BTL it is alrady, but actually it is paralelling the two channels one have to do to get 100w and/or if one uses 4 ohm. It seems I must open all the shorted jumpers and vice verca?
I have bougt a already paralelled duoble 2050 board from Sure (on sale now 29$!!!)so I know the chip sounds much better than ANY AMP I'VE EVER HEARD!
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Old 24th November 2012, 02:39 PM   #12
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I messed it up.
Soldering the caps and resistors worked much better than expected, but I wasn't carful enought with the TK2050 and bent some of the contacts whe using the desoldering braid. When I tried to straighten them one by one I ripped a contactplate on the board off.

It was a interresting experience soldering SMD parts, but for ICs I need some more practice.

So is there any shop, where i can get such a board assembled, tested and ready to use?

Cheers,

Norman
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Old 25th November 2012, 06:42 AM   #13
Mooly is offline Mooly  United Kingdom
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You need to prectice with SMD soldering. If the damage isn't to bad then it can be repaired with fine wire.

Working with SMD. How to do it without specialised tools.
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Old 25th November 2012, 07:57 PM   #14
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Thanks for the tut, but it's too late. I got mad and broke the board in half.

Anybody knows any other source for such boards or any other solution for 24V and over 50W per channel?
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