Whats your process of testing PCB boards
We don’t test PCB boards.
In what context?
These are the five contexts and each is different for where I work.
- Bare PCB’s before component installation
- PCB’s with parts installed but before final product assembly
- Repairing a product that fails production line QC
- Repairing a product that failed before end user installation
- Repairing a product that failed years after the end user installation
Number 5 i Guess
This is a bit of a vague question so I apologize if the answer is also a bit vague.
I always start with a visual inspection. Many times if the failure happens on a board you will see some type of visual cues. This could be obvious like a blown cap or another part that is visually damaged or it could be as subtle as a slight discoloration.
Second requires a little knowledge of the inputs and outputs of the PCB in question. If you know what the input and output are you can verify if you have the correct input to the board and output from the board.
Once you have identified that the input is correct and the output is not, then it really comes down to the specific components on the board and your ability or inability to test those components while in a circuit. There are so many variations here that there really is no specific process to follow.
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Well the first board i did see and gave a look over but after the first try i noticed another part needed replacing but im yet to test. I have two of these boards and see it both parts was blown on both…now changed untested lol don’t like the plugging in bit.
Second requires a little knowledge of the inputs and outputs of the PCB in question. If you know what the input and output are you can verify if you have the correct input to the board and output from the board.
Regards to this how do you learn the and what sorry just hate the waste i see and trying to stop some.
Got some context for the specific case you’re in? Photographs or markings?