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Chip Amps Amplifiers based on integrated circuits

Fried TK2050 Amp Board
Fried TK2050 Amp Board
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Old 17th May 2011, 11:24 PM   #1
Rikdee is offline Rikdee  New Zealand
diyAudio Member
Join Date: May 2011
Smile Fried TK2050 Amp Board

Hi All

I've recently purchased a Sure Electronics TK2050 2x100w amp board and i've fried it on completion of my little boombox project.

I'm basically looking for help in finding where the fault is, or someone may be able to tell me what i've done. Is it an easy fix?

I basically had my 2 SLA 12v 7.2a/h batteries wired in parallel connected to a couple of bolts to enable me to recharge with a 12v car charger. Well, low and behold, i zapped it. Now my amp board power lights do not come on and there is no noise at all from the board.

What can i do please? Please bear in mind that I am an amatuer at best (obvious from the above) so please go easy on me.

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Old 18th May 2011, 02:55 AM   #2
quikie22 is offline quikie22  Malaysia
diyAudio Member
Join Date: Sep 2009
check the fuses (if you used them)
recharge the batteries
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Old 18th May 2011, 06:45 AM   #3
Rikdee is offline Rikdee  New Zealand
diyAudio Member
Join Date: May 2011
I've looked at the schematic and i don't think there are any onboard fuses, the batteries are well charged and as for the fuse that i used, well, it was way too big since i still managed to fry the board.

I may be blind but does anyone know if these boards have very small onboard fuses?
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