Next is R4.
They should be 6.8 k
Color code is Green Gray Orange
Your picture shoes red red black
They should be 6.8 k
Color code is Green Gray Orange
Your picture shoes red red black
So go to work on those and compare the color codes with the remaining resistors as I can only see the board you photographed from one angle.
I can check them if you want to take a photo from all four angles: but I think you get the idea?
You can heat the leads one side at a time and gently put pressure upward with a small screwdriver or tweezers and rock them out. If you have solder wick or a desoldering tool all the better. Heat, lift a little. Go to the other side and repeat till they lift out of the pads. Be real careful to not tear the pads.
Let me know!
I can check them if you want to take a photo from all four angles: but I think you get the idea?
You can heat the leads one side at a time and gently put pressure upward with a small screwdriver or tweezers and rock them out. If you have solder wick or a desoldering tool all the better. Heat, lift a little. Go to the other side and repeat till they lift out of the pads. Be real careful to not tear the pads.
Let me know!
Papa suggested changing R4 to 22k to slow down the charging to help some power supplies:
https://www.diyaudio.com/community/threads/diy-aca-mini.379037/page-61#post-7123575
Edit: It seems R2 and R4 were changed in later completion kits: Please see here: https://www.diyaudio.com/community/threads/diy-aca-mini.379037/page-68#post-7156140
https://www.diyaudio.com/community/threads/diy-aca-mini.379037/page-61#post-7123575
Edit: It seems R2 and R4 were changed in later completion kits: Please see here: https://www.diyaudio.com/community/threads/diy-aca-mini.379037/page-68#post-7156140
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Thanks. Yes, in my kit there was a note that said R2 -200k qty 2. R4 = 22.1K. R0 and R3 remain the same. That explains why the color code on mine looks different. It’s oriented brown on right per instructions.
Major update I think. I have my components on a wood rack with glass shelves. The ACA had been on one glass shelf. The cdc player and turntable on other separate glass shelves. I decided to put a cd case under the ACA and move the cd player over on the carpet. Dead quiet and plays as expected.
I want to say big thanks to everyone who helped in this thread. My dad was my go to guy for soldering and unfortunately he never taught me before he died a few years ago. So I’m learning on my own. I appreciate all the patience.
I wonder if the glass conducts some current or interferes somehow. I’ll post a pic of anyone is interested and if someone else has the same issue.
I want to say big thanks to everyone who helped in this thread. My dad was my go to guy for soldering and unfortunately he never taught me before he died a few years ago. So I’m learning on my own. I appreciate all the patience.
I wonder if the glass conducts some current or interferes somehow. I’ll post a pic of anyone is interested and if someone else has the same issue.
Huh… that’s quite interesting, as that shouldn't make a difference… are any of the component leads on the bottom long and touching the shelf/case?
No, they weren’t. But I moved the ACA down to the wood shelf, and the cd player up on the glass top shelf, and no buzz, no hum. Sounds as I would expect. Before, it started just when turning the cd player on, before even playing a cd.
That bottom shelf in the picture is just unattached spare speaker cables— not hooked up to anything.
That bottom shelf in the picture is just unattached spare speaker cables— not hooked up to anything.
