Focusrite Microphone CM25 MKiii Motherboard (cracking noise)

[Jobair Ahmed]

Q1: Can anyone tell me what kind of component is that? is it a ceramic capacitor? if it's a capacitor than what is the value of the capacitor?
(image 1)



Q2 : Does All The 2SK660 Works same as this one ?




Q3: Does all the 2N5401 works same as this one ?
Q4: What does that mean by Y-A27 ?


Please help me to find out the issue and solve the problem.

 

[Khron]

if it's a capacitor than what is the value of the capacitor?

"102", so 10 and 2 zeroes, so 1000(pF), which is 1nF.

Q2 : Does All The 2SK660 Works same as this one ?

Why wouldn't they? Although if a 2SK660 happens to be defective, it won't work (as well) as a good 2SK660.

Q3: Does all the 2N5401 works same as this one ?

Once again, why wouldn't they?

Q4: What does that mean by Y-A27 ?

Date code / production batch code etc.

Please help me to find out the issue and solve the problem.

"Cracking noise" is not much to go on...

 

[Ike Zimbel]

Yes, those are ceramic caps. 102 means 10 + two zeros, so 1000pf or 1nf. They are unlikely to be your problem. Focusrites can be really hard on electrolytic capacitors, because they run hot, so I would look at those.

 

[Khron]

Focusrites can be really hard on electrolytic capacitors, because they run hot, so I would look at those.

This is a microphone, though... Phantom powered one, too.

 

[Jobair Ahmed]

"102", so 10 and 2 zeroes, so 1000(pF), which is 1nF.



Why wouldn't they? Although if a 2SK660 happens to be defective, it won't work (as well) as a good 2SK660.



Once again, why wouldn't they?



Date code / production batch code etc.



"Cracking noise" is not much to go on...

oh maaaaaaaaaan! I can't thank you enough. In my country (Bangladesh), I have been to so many electronics shops, and they can't give me a proper answer. Even though I've got so many electronic repair shops and music instrument repair shops, they can't fix it because they don't understand how a microphone works or what the problem would be. That's why I took this thing as my fixing project, although I don't have so much idea about how electronic components work. even though it took more than 7 days to find out the resistance value of this motherboard.

 

[Jobair Ahmed]

Yes, those are ceramic caps. 102 means 10 + two zeros, so 1000pf or 1nf. They are unlikely to be your problem. Focusrites can be really hard on electrolytic capacitors, because they run hot, so I would look at those.

You guys are so helpful. Take love. I'm going to replicate this motherboard and try to make a new microphone, and let's see if it works or not!