...and of course it didn't work.
I was tidying up the workbench and found this Klone half finished and then found a random bag with all the missing parts in it.
I don't know if it was past me or current me that's screwed up here but any help appreciated. It's outputting at a very, very low volume in both bypass and on.
Photos of the board can be found here:
https://photos.app.goo.gl/Ei6HHkGNMeM9cRZ77
Voltages of IC's as follows:
IC1 - Bottom TL072
1: 4.86V
2: 4.86V
3: 3.73V
4: 0V
5: 4.85V
6: 4.84V
7: 4.80V
8: 9.72V
IC2 - Middle TL072
1: 4.84V
2: 4.86V
3: 4.85V
4: -9.13V
5: 4.86V
6: 4.86V
7: 4.88V
8: 17.35V
IC3 - Top TC1044SCPA
1: 9.74V
2: 4.88V
3: 0V
4: -4.57V
5: -9.13V
6: 7.12V
7: 7.09V
8: 9.73V
Looking at the schematic it looks like the voltages for IC1 aren't right and should match IC2 - should I swap this out?
I've been through and reflowed all joints and ran the iron between all pads to make sure nothing was shorting too.
Thanks all!
I was tidying up the workbench and found this Klone half finished and then found a random bag with all the missing parts in it.
I don't know if it was past me or current me that's screwed up here but any help appreciated. It's outputting at a very, very low volume in both bypass and on.
Photos of the board can be found here:
https://photos.app.goo.gl/Ei6HHkGNMeM9cRZ77
Voltages of IC's as follows:
IC1 - Bottom TL072
1: 4.86V
2: 4.86V
3: 3.73V
4: 0V
5: 4.85V
6: 4.84V
7: 4.80V
8: 9.72V
IC2 - Middle TL072
1: 4.84V
2: 4.86V
3: 4.85V
4: -9.13V
5: 4.86V
6: 4.86V
7: 4.88V
8: 17.35V
IC3 - Top TC1044SCPA
1: 9.74V
2: 4.88V
3: 0V
4: -4.57V
5: -9.13V
6: 7.12V
7: 7.09V
8: 9.73V
Looking at the schematic it looks like the voltages for IC1 aren't right and should match IC2 - should I swap this out?
I've been through and reflowed all joints and ran the iron between all pads to make sure nothing was shorting too.
Thanks all!