Hi All,
I finished the 27v Boost build today, super fun. That said, I am having an issue very similar to the posts below. In short, no issues when bypassed, but when engaged, I get extremely garbled sound when strummed very hard, and no sound at normal playing intensity. The LED works without issue when engaged.
viewtopic.php?f=31&t=60068viewtopic.php?f=31&t=59453Based on what I found there, I resoldered a few joints that looked dicey, and then measured IC voltages. Here is what I found, which leads me to believe the 7660S is bad:
TL072
1: 4.59
2: 4.59
3: 3.74
4: 4.5
5: 4.54
6: 4.59
7: 4.59
8: 8.18
7660S
1: 9.16
2: 9.16
3: 0
4: 7.10
5: 9.16
6: 8.10
7: 8.49
8: 6.94
Does my diagnosis check out? I can get some pictures if necessary.