Arjen's helder TA2020 MKiii went fault :( - Page 2

tuyen · 17th September 2010, 06:19 AM

Hi defect9, no sound coming out either. Which has left me baffled what I have done wrong!

Okay, I might change the LEDs over tonight see if the other LED is white.

I need sound!!

defect9 · 17th September 2010, 07:28 AM

you might need to post a pic of your wiring job. mine fired up proper right out of the box once I connected everything. I'm also using the switchmode powersupply, which I doubt is the issue, but, ya never know. (interesting sidenote, you can also use a computer power supply, but I wouldn't do that unless you exactly know what you doing)

one thing I did when I got the amp was poke at the inductors and make sure they weren't touching the heatsink or each other. it probably wasn't necessary, but it was one of those "it just looks better" things.

also examine the board for any failed solder attempts.

something else that I wonder about. you specifically mentioned the DC input. do you mean the plug input, or the green crimp block input?

tuyen · 17th September 2010, 08:56 PM

My bad! I didn't even check the car battery. It must be faulty, it is only outputting 4.8V DC! STupid me!

I will find a replacement battery which outputs 12V DC and give it another go! Will report back soon

tuyen · 17th September 2010, 10:24 PM

False alarm! All systems go now! Helps when you use a battery that isn't flat.

First impressions.. not bad for a chip amp! Should work well with the GOTO horns

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17th September 2010, 06:19 AM	#11
tuyen diyAudio Member Join Date: Oct 2008	Hi defect9, no sound coming out either. Which has left me baffled what I have done wrong! Okay, I might change the LEDs over tonight see if the other LED is white. I need sound!!

17th September 2010, 07:28 AM	#12
defect9 diyAudio Member Join Date: Sep 2007 Location: Carson City, NV	you might need to post a pic of your wiring job. mine fired up proper right out of the box once I connected everything. I'm also using the switchmode powersupply, which I doubt is the issue, but, ya never know. (interesting sidenote, you can also use a computer power supply, but I wouldn't do that unless you exactly know what you doing) one thing I did when I got the amp was poke at the inductors and make sure they weren't touching the heatsink or each other. it probably wasn't necessary, but it was one of those "it just looks better" things. also examine the board for any failed solder attempts. something else that I wonder about. you specifically mentioned the DC input. do you mean the plug input, or the green crimp block input?

17th September 2010, 08:56 PM	#13
tuyen diyAudio Member Join Date: Oct 2008	My bad! I didn't even check the car battery. It must be faulty, it is only outputting 4.8V DC! STupid me! I will find a replacement battery which outputs 12V DC and give it another go! Will report back soon

17th September 2010, 10:24 PM	#14
tuyen diyAudio Member Join Date: Oct 2008	False alarm! All systems go now! Helps when you use a battery that isn't flat. First impressions.. not bad for a chip amp! Should work well with the GOTO horns

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