Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html
I am not quite sure what I need to measure, but this is what I did:
Meter set to 2V,
Black (-) probe to B, Red (+) to E, 0.660
- to E, + to B, -0.658
+ to B, - to C, 0
- to B, + to C, 0
- to E, + to C, -0.650
+ toE, - to C, 0.650
I am not quite sure what I need to measure, but this is what I did:
Meter set to 2V,
Black (-) probe to B, Red (+) to E, 0.660
- to E, + to B, -0.658
+ to B, - to C, 0
- to B, + to C, 0
- to E, + to C, -0.650
+ toE, - to C, 0.650
"Then what is wrong? " I don't know. That is why I need to see the printed circuit board solder connections for the protect circuit. Preferably a nice clear / sharp photo !!
Finally I know what those numbers in the rectangular box mean on the schematics. Even that, poking around, reading numbers and sometimes it makes sense, sometimes doesn’t.
so should I go ahead and replace TR404 with KSA992?
Thanks for all these.
Replace TR 404 with a bit of hope. And it works! The relay closes after 3, 4 seconds. Have not hooked up to the speakers yet. Not sure going to still hear the popping sound or not. At least, “we” get the relay back to normal. Thanks for all your help.
Can you post a picture of the solder side of that area of the circuit board?
