Informant - no sound
- Thread starter Allthumbs
- Start date
would it be fruitless to start replacing these components because there is probably a perfectly good explanation as to why they are not getting current? Would the audio probe lead me to the problem?
if R1 has no current, then should C1 also have none? I know, I should know this but I'm attempting to learn
thanks for any input
if R1 has no current, then should C1 also have none? I know, I should know this but I'm attempting to learn
thanks for any input
best use of your time troubleshooting is to get the schematic for your build and use your digital multimeter to make sure that the parts connect together the way they are laid out in the schematic. if everything connects the way it should, then you check to make sure there are no "extra" connections to ground in the parts that carry the audio signal and the power. when you find parts that should connect but do not, you figure out what the problem is and fix it (usually a bad connection to the board, which is why the first advice given is usually to check the connections on the board and touch up anything that looks questionable).
my suggestion is a bit different. instead of checking to see if you have current or voltage, use the schematic to make sure the parts connect to each other as shown in the schematic. so you see if the "IN" part on the pcb connects to R1 and C1. then see if the other side of C1 connects to R2, then check to see if the other side of R2 connects to both R3 and pin 3 of IC1, etc etc etc
if the schematic shows a connection between some parts and you cannot confirm they are connected, you have found at least one area where something needs to be identified and fixed.
you can print out the schematic and put check marks on the places that test OK and question marks on any areas that are not connecting like they should be.
if the schematic shows a connection between some parts and you cannot confirm they are connected, you have found at least one area where something needs to be identified and fixed.
you can print out the schematic and put check marks on the places that test OK and question marks on any areas that are not connecting like they should be.
use your DMM to check to see if the parts are connected that the schematic says are supposed to be connected. You are doing that to go through all of the connections to look for something that is not connecting the way it is supposed to.
if you are not familiar with doing that you should watch some youtube videos that will show you how to do it. use this link:
if you are not familiar with doing that you should watch some youtube videos that will show you how to do it. use this link:
I shelved this thing for a long time. I just couldn't deal with the task of tracing the board and my earlier attempts didn't produce any real problems after sussing them out so I was stymied by my lack of knowledge.
I kept thinking about what I did wrong and I kept picturing those Switching jacks that I removed contacts from. Did I remove the wrong contacts?
Yes I fucking did. The pedal works great.
I learned a lot from the info everyone provided.
Thanks
I kept thinking about what I did wrong and I kept picturing those Switching jacks that I removed contacts from. Did I remove the wrong contacts?
Yes I fucking did. The pedal works great.
I learned a lot from the info everyone provided.
Thanks
Many__Of__Horror
Active member
We always appreciate a follow up with a happy ending
