Sony 76c - Manual (Page 56)

56 Fine-tuning the Projector
Adjusting the Input Signal
Although the projector normally detects and optimizes the input
signal automatically, you can use the Signal menu to make manual
adjustments. In addition to changing the position of the projected
image, you can correct tracking and sync for computer images, or
change the aspect ratio to widescreen format for video images.
1. Press the Menu button. You see the Image menu.
2. Select the Signal menu. You see one of the following screens:
Computer (analog-RGB) and RGB video
Component video
Composite video and S-Video