Build Your Own Clone Message Board

It is currently Tue Jun 25, 2024 3:30 pm

All times are UTC - 6 hours




Post new topic Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Thu Dec 30, 2021 4:44 pm 
Offline

Joined: Thu Dec 30, 2021 4:23 pm
Posts: 5
Hey all,

I just finished the classic compressor build and when switched on nothing happens other than the LED light coming on. When turned off, sound comes out of the amp but when switched on it's completely silent. Attaching pics below. Hope someone can spot something that I am missing. The first two pics are the guts top view and bottom view. After looking at them I went back in and cleaned up the wires connecting to the jacks and the foots witch.. The clean up did not change anything with the outcome.

Thanks in advance for your help!

Mike C.


Attachments:
3rd_pic_cleanedup-jacks-3.jpg
3rd_pic_cleanedup-jacks-3.jpg [ 518.82 KiB | Viewed 1732 times ]
IMG_7865-2.jpg
IMG_7865-2.jpg [ 649.21 KiB | Viewed 1732 times ]
IMG_7859_1.jpg
IMG_7859_1.jpg [ 590.11 KiB | Viewed 1732 times ]
Top
 Profile  
 
PostPosted: Thu Dec 30, 2021 5:20 pm 
Offline
Site Admin
User avatar

Joined: Sun Jan 22, 2006 1:39 pm
Posts: 6012
Location: Richland, WA
Does adjusting the trimpot have any effect?

_________________
*patience is a virtue*

Please do not PM me. email is prefered. keith@buildyourownclone.com


Top
 Profile  
 
PostPosted: Thu Dec 30, 2021 5:28 pm 
Offline

Joined: Thu Dec 30, 2021 4:23 pm
Posts: 5
No change when adjusting the trim pot. I will probably reflow the joints and see if that works unless someone spots something wrong that I missed.


Top
 Profile  
 
PostPosted: Tue Jan 18, 2022 2:39 pm 
Offline

Joined: Thu Dec 30, 2021 4:23 pm
Posts: 5
So I reflowed the joints and nothing has changed.


Top
 Profile  
 
PostPosted: Thu Jan 20, 2022 12:45 pm 
Offline
Site Admin
User avatar

Joined: Sun Jan 22, 2006 1:39 pm
Posts: 6012
Location: Richland, WA
Do you have a multimeter and know how to use it? If so, please take voltage readings of the CA3080 chip.

_________________
*patience is a virtue*

Please do not PM me. email is prefered. keith@buildyourownclone.com


Top
 Profile  
 
PostPosted: Mon Feb 14, 2022 7:51 pm 
Offline

Joined: Thu Dec 30, 2021 4:23 pm
Posts: 5
I have one now. How do I test it?


Top
 Profile  
 
PostPosted: Mon Feb 14, 2022 9:46 pm 
Offline
Moderator
User avatar

Joined: Tue Feb 09, 2010 4:45 pm
Posts: 4699
Location: Rochester, NY
mikec247 wrote:
I have one now. How do I test it?

From moderator duhvoodooman in another thread:

To measure the DC voltage level on the IC pins, set your multimeter to the DC voltage mode, indicated by a solid line above a dotted one. Use the 20VDC range setting if it's not an auto-ranging meter. Your power source needs to be connected and there needs to be a cable in the input jack. If the pedal is assembled into the metal enclosure, put the black probe into one of the corner screw bosses of the enclosure--this is your ground connection. If the "guts" are out of the enclosure, use the sleeve tab of the input jack for the ground connection. Then touch the red probe to each point that you want to measure. See left side of the image below for the numbering of the pins.

Image

_________________
Scott

My band, Austin Hollow


Top
 Profile  
 
PostPosted: Wed Feb 16, 2022 4:04 pm 
Offline

Joined: Thu Dec 30, 2021 4:23 pm
Posts: 5
Hey what readout am I looking for with each pin?


Top
 Profile  
 
PostPosted: Wed Feb 16, 2022 4:16 pm 
Offline
Moderator
User avatar

Joined: Tue Jan 02, 2007 1:24 pm
Posts: 16252
Location: Albany, NY
The values should all be between 0 and ~9V. Beyond that, you provide the results you get and we can tell you whether or not they make sense.

_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)

My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group