JVC 250 Service Manual page 44

Optical Path - Service Adjustments
Tools Needed
3-mm Hex wrench
Parts Needed
No serviceable parts
The one adjustment that can be performed on the optical path is with the XY
Positioner that moves the #1 Condensing Lens in the X- and Y-axis. The XY
Model 250 Service Manual
Figure 4-7 Optical Path
Chapter 4---Optical
4-11