Hi Jestern. +/-11V is fine (the IN4001 diodes steal a bit of the 12V from your supply, but that’s fine and normal).
Check out the schematic https://github.com/lzxindustries/documentation/blob/master/Cadet%20IV%20Dual%20Ramp%20Generator/Cadet%20IV%20Dual%20Ramp%20Generator%20Schematics.pdf for information you’ll need to work out what’s wrong. Don’t worry if you don’t understand the details of how the circuit works, just try to get an understanding of how the schematic relates to your PCB and the components you soldered to it.
First check the voltage on all the power pins on all the ICs. You can google the chips to find their datasheets or pinouts to work out which pins are which (“lm6172 datasheet” or “lm6172 pinout”). “V+” or “Vcc” means +11V, “V-” or “Vee” means -11V, ground means 0V. You should check these with the module plugged in to power, but be careful not to accidently short your test lead across two pins - while it’s usually OK sometimes doing that can damage things.
You can also check that ground pins are all connected, by using a multimeter on resistance with the module disconnected from the euro power. Check that the ground pins on the euro power connector (there are lots of them) have nearly no resistance to anywhere you see a ground signal on an IC pin in the schematic.
Next, make sure the sync signals are making it to R45 and R27 (i.e. they look the same as they do coming out of the sync module).
Then, see if there’s any ramp on the + input to U13.2 and U12.2.
There’s another thread on the forum recently where someone was having trouble with one of their two ramp outputs - you might find some other helpful debugging advice there.
When I zoom in your photos of the PCBs are a bit blurry so it’s a bit hard to comment usefully on them, sorry.
Let us know how you go, there are plenty more things to check!