Bottlehead Kits > Crack-a-two-a

C2A build Voltage question

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TheRedMantra:
Hi friends. My C2A is SO close to being done. I did my voltage tests last night (resistance tests went perfectly) and got some weird numbers on the low C4S board:

IA 150V - 155V
OA 60-90V - 66V
KregA 3-6V - 1.9V
bRegA 150V -154V
IB 150V - 159V
OB 60-90V - 63V
KregB 3-6V - 1.9V
bRegB 150V - 164V

Before I start ripping everything apart is there a likely spot to start?

On the high current boards for the bA and IB measurements they're supposed to be 0V. I'm getting 0.1 for both on one board and 0.8 and 0.7 on the other. Is this acceptable? Do they need to be 0.0? I did have two LEDs not light up on one of the boards but noticed I installed them backwards somehow. I damaged one trying to remove it so I ordered replacements this morning and hope to have this all resolved next week.

Also, for the headphone jack, where do I measure "tip" and "ring"? I am not super knowledgeable when it comes to electronics and this is my first build. I can follow instructions and pay attention though  ;D


Thank you for your help!

TheRedMantra:
Might as well post values for the High Current boards if it can offer any insights or cause for concern:


Measurement - Board 1 / Board 2

IA 190v - 193/192
OA 150v - 169/155
bA 0v - 0.1/0.8
IB 0v - 0.1/0.7
OB 90-110v - 107/94
bB 150v - 169/155

These seem to be close enough but I am second and third guessing myself because I'm prone to confirming my biases. Haha!

Paul Birkeland:
Can you post some build photos?

Doc B.:
I'll throw out one possibility - are you measuring the Kreg voltages with a meter that does not autorange and, if so, are you using a high voltage range scale setting like 200V or 500V? Some meters with manually set ranges are not very accurate measuring smaller voltage values on the higher voltage ranges.

TheRedMantra:
Doc, the meter auto ranges. Paul, I've attached a few pictures that will hopefully help.

I took these pictures AFTER the posted measurements. You can see I hammajammed the LEDs pretty good so that will be remedied when my new LEDs show up. Unfortunately my kit didn't come with any extras. And the powder coat is removed where the grounds need to make contact. That headache was solved with the forum luckily.

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