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Old 14th September 2011, 06:14 PM   #1
diyAudio Member
Join Date: Sep 2011
Default No sound from Lepai TA2020, no current draw

I just bought a Lepai TA2020 and somehow managed to break it before I could start on any mods for it.

I actually had it running in my car for a bit, then the audio started chopping in and out and the thing went dead. I was running a single dashboard speaker (old car) with the left and right channels wired together. After inspection I found that I'd done a crap soldering job on the two-to-one wiring connection for the positive leads as the whole connection had broken open.

Now the amp still turns on, but I don't get any audio out of it, and the ammeter on my dashboard shows next to no current draw. I'm guessing I blew something that gets power to the amp chip or maybe just the relay, but I don't see any physical damage. What do I need to check or try jumping to see if I busted something simple or just ruined the TA2020 itself?
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Old 14th September 2011, 06:38 PM   #2
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Join Date: Jun 2005
Location: Copenhagen, Denmark
You broke the chip. Nothing to do except buy a new amp or if you can find it a lone TA2020 chip and solder it in yourself (a new amp is probably cheaper).

Next time, don't wire the channels together.
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Old 14th September 2011, 08:02 PM   #3
Bone is offline Bone  United Kingdom
diyAudio Member
Join Date: Jun 2004
Location: Dorset, UK
You can't wire left & right channels together either.
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