batflash
Member
- Joined
- Nov 8, 2022
- Messages
- 13
- Reaction score
- 10
Hey all,
Here I am posting my stupid mistake of swapping the BASS pot on CH2 with a 100k pot thinking that the original was a 250k based off a schematic I found on here. The original was really a 1Meg pot. Now I get a literal whisper-level volume out of the 2nd channel. Channel 1 and 3 are fine.
Would anyone have a good schematic of the Mark V 90W?
Would anyone know what I could've fried by changing the value of the pot to a 100k?
My guess is I burnt out a transistor. The transistor closest to the bass pot, though not directly connected to it is reading approx 90ohms across legs 1 and 3. Odd, but then again, what do I know at this point?
I appreciate any help directly related to troubleshooting which component I may have damaged.
Note that I've got a handful of switching transistors, J175's. Going to try to get a night's rest before testing again.
Thanks all,
Jason
Here I am posting my stupid mistake of swapping the BASS pot on CH2 with a 100k pot thinking that the original was a 250k based off a schematic I found on here. The original was really a 1Meg pot. Now I get a literal whisper-level volume out of the 2nd channel. Channel 1 and 3 are fine.
Would anyone have a good schematic of the Mark V 90W?
Would anyone know what I could've fried by changing the value of the pot to a 100k?
My guess is I burnt out a transistor. The transistor closest to the bass pot, though not directly connected to it is reading approx 90ohms across legs 1 and 3. Odd, but then again, what do I know at this point?
I appreciate any help directly related to troubleshooting which component I may have damaged.
Note that I've got a handful of switching transistors, J175's. Going to try to get a night's rest before testing again.
Thanks all,
Jason