Failed Voltage Check on New Mainline [resolved]
- Thread starter ScottAstroNut
- Start date
ScottAstroNut
New member
The base-emitter junction measures open circuit both ways. The base-collector junction operates as it should, and just as you say. Shouldn't the base-emitter junction work the same way as the base-collector junction?
ScottAstroNut
New member
In any case, at this point I think I will put a new 2N2222 back in the regulator board, so I need another. Should I order one from you, or would you prefer that I simply get one from Digi-Key or Mouser?
Yup you will probably see either open or a resistance around 500ohms - 2K depending upon which way the probes are oriented with any of the three possible combinations of b to e, b to c, c to e. You can order one through us by emailing replacementparts@bottlehead.com.
ScottAstroNut
New member
Thanks, Doc! Will do.
Also, sorry for sidestepping the usual troubleshooting process a bit. My friend had removed the transistor before I could stop him to test it. Not that I'm overly upset that he did so, but normally I wouldn't have taken that step until instructed by you to do so.
A new transistor will help rule that part out as the problem, but...
Thanks for your help. Always appreciated.
Also, sorry for sidestepping the usual troubleshooting process a bit. My friend had removed the transistor before I could stop him to test it. Not that I'm overly upset that he did so, but normally I wouldn't have taken that step until instructed by you to do so.
A new transistor will help rule that part out as the problem, but...
Thanks for your help. Always appreciated.
ScottAstroNut
New member
The new transistor arrived today. A two-minute install of the new part, then a quick test. Immediately I noticed all eight LED's on the C4S boards light up, than a thorough re-check of the voltages showed that all the values were now within specified guidelines. Yippee!
The new Mainline is now installed in my system and making sweet music! Looks like it was just a defective transistor after all, just as my EE friend suspected.
So far I am really enjoying the Mainline. It sounds awesome!
Thanks, everybody, for the help in getting this kit up and running. This forum makes all the difference!
The new Mainline is now installed in my system and making sweet music! Looks like it was just a defective transistor after all, just as my EE friend suspected.
So far I am really enjoying the Mainline. It sounds awesome!
Thanks, everybody, for the help in getting this kit up and running. This forum makes all the difference!
Thanks for returning to let us know it worked out!
-PB
-PB
