Help needed with A8 LED not lighting [resolved]

VincentR · 1490

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Offline VincentR

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on: June 04, 2015, 11:08:00 PM
Just finished building the crack and testing resistance/voltage. So far everything looks good except for a few high voltage readings.
The LED for A8 is not lighting up and my readings for A6 and B1 are higher than specified in the manual. Current readings and expected range detailed below...

A6: 152 (90)
B1: 152 (90)
A8: 17

Is the A8 LED faulty and affecting my readings for A6 and B1?

Any guidance would be appreciated. Also, keep in mind that this is my first build and have very little understanding of what I just put together.
« Last Edit: June 05, 2015, 04:40:37 PM by Caucasian Blackplate »


Offline Paul Birkeland

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Reply #1 on: June 05, 2015, 03:47:30 AM
That's an awful lot of solder, which may have overheated the LED going to A8.   I suspect if you carefully jumper A3 to A8, you may find that your issue is resolved.

-PB

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline VincentR

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Reply #2 on: June 05, 2015, 03:31:01 PM
Thanks for the tip.

Pretty sure you are right about overheating the LED. I went to my local Fry's electronic shop to pick up another LED and swapped out the dead one. With A6 and B1 now both in the range (85), along with everything else, I figured it was now safe to test on my HD 650s. I have to say the sound is truly something special - wow! I won't be leaving my chair for some time  :)

Thanks again for the help!
Cheers


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