Originally Posted by aposner
Is the section in the manual on the "service menu" simple enough for the average home user to make use of. i.e. do they describe what the setting do?
The service manual tells how to adjust:
1: Picture tilt
3: Picture centering
4: Evenness of screen illumination.
5: The wobulator
You can do these adjustments without any special tools, except for a suitable test pattern.
It warns that a CCA calibration cannot be done without special equipment, but it does not say what to adjust to do one. It describes how to swap some boards without losing the existing calibration data.
It gives the default values of all service menu parameters, but explains only a few of them. It also explains how to diagnose a defective board, and it has a lot of block and circuit diagrams and explanations of each board and subsystem. The manual is specific to the 5087, but it describes a lot of things like the color wheel and lamp circuit (in addition to the LEDs), so I guess a lot of components and boards are shared across the various DLP models.
BTW, each of the red, green, and blue LEDs uses about 30 Amps of current!
One thing you apparently CANNOT do is adjust the image size or overscan. To do this, it would be necessary to adjust the magnification of the optical system, which is apparently fixed. To do it electronically, you would have to re-scale the horizontal or vertical pixel count, which would degrade the image quality.