Not sure about the 200 but for the GY-HD110, it is as follows (sorry, never could get the PDF):
Dead pixel compensation –
1. Must be in HD 24p mode to access
2. Hold the focus assist button and menu buttons together to access menu.
3. Click on camera 1
4. Click on Pixel comp
5. Wait til it finished and reboot camera
It’s probably the same for that camera as well. Yes, I agree it’s very disappointing.