JMan

Re: SB4000 Support Thread
« Reply #1540 on: March 29, 2020, 07:40:43 PM »
Hey felix, I tried to upload it but it’s not going through — I think maybe the file is too big.  PM me and we’ll get it sorted.


Blackdawg

Re: SB4000 Support Thread
« Reply #1541 on: April 24, 2020, 01:39:42 AM »
would be great man! i didn‘t find it yet.
Thank you!
Here is a link to all the docs I have for this:

https://drive.google.com/drive/folders/1C5WfXIfJVefF90KV2jqWBoyQkgP4qZOr?usp=sharing

As the build guide and BOM and such.  Sorry theres a few other random docs that pertain to my own build you can ignore ha

ruckus328

Re: SB4000 Support Thread
« Reply #1542 on: May 08, 2020, 08:09:06 PM »
Links have been fixed.
Serpent Audio™ - SB4000 & SA-3A Boards & Parts Kits / SB4001 Preorder / Send 'N Blend

www.serpentaudio.com

Re: SB4000 Support Thread
« Reply #1543 on: May 19, 2020, 11:37:28 AM »
I'm trying to calibrate power on my SB4000 build and I keep frying the 10 ohm resistor at R182 on the PS board.  The first time I believe I accidentally shorted the pins with my meter probe.  I replaced the part and got the PS calibrated alone but R182 fried again as soon as I connected the main board (with the control board still disconnected) - replaced it again and it fried again when connecting the main board. 

Are there parts I should replace in the power supply  besides R182 (and its companion R183)?  I have some electronics education but mostly from many years ago, so I will have to beg your patience with me if I am being thick here.

I have looked for any obvious problems with solder bridges or component orientation and I found nothing.  One thing I notice is that the VU meter (I am using the one from Hairball) is very bright - before replacing the PS resistors the second time, I also upped of R133 (currently using 300 ohms, I  believe I originally used 260) in case that was an issue, but the meter still seems very bright - until R182 cooks, at least.

Any help is greatly appreciated.

Regards,
   John


 

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