I've got a Marshall bb-2 with a very faint signal. Everything works properly, the output signal is just very low. I've got limited electronic knowhow but I suspect one of the transistors (tr2 or tr3) So before I start replacing working parts, does anyone know which one it is/had the same problem? :)
Edit: schematic added
(https://s1.postimg.org/7dbr88ahuz/Screenshot_2017-10-29-12-58-42-005_com.google.android.apps.docs.png) (https://postimg.org/image/7dbr88ahuz/)
More info?
Closer pics?
Go here
http://www.diystompboxes.com/smfforum/index.php?topic=29816.0
Yorick,
Did you get it this way? Are you using Proper power supply or fresh battery? It it a fault the unit has developed?...etc...etc..
It is always better to say as much as you know and have tried to check yourself when you say:...?..It's broken..?.. It will be a good
learning experience to get to know the workings of what your using. Have you checked the plug mates only with the contacts it's
supposed to with the jack exposed [lid off!] Sounds like a part-short across the output..? If the Debugging hasn't helped you, let us
know what you tried to do...
Steve