WG6100 - vertical size can't be adjusted on Tempest
I'm working on a WG6100 today in a tempest. The chassis mounted transistors were blown. I get the game to come up and all voltages are fine. But the vertical size is too big and adjusting the pot won't help. Has anyone seen this? I can adjust everything but the vertical size pot. What's the most likely culprit? I confirmed the pcb is fine as I tried it in another machine and all pots work.
I'm working on a WG6100 today in a tempest. The chassis mounted transistors were blown. I get the game to come up and all voltages are fine. But the vertical size is too big and adjusting the pot won't help. Has anyone seen this? I can adjust everything but the vertical size pot. What's the most likely culprit? I confirmed the pcb is fine as I tried it in another machine and all pots work.

