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Chapter 5---Electronics
Model 250 Service Manual 5-61
Parts Needed
RGBHV VIC p/n 102597
To remove the RGBHV VIC:
1. Power off the projector by IR Remote or PC, and allow the cooling fans to
run until they shut off.
2. Turn the AC Circuit Breaker to the OFF position and unplug the AC
Power Cord.
3. It is not necessary to remove the rear cover.
4. Disconnect the red, green blue, horizontal and vertical input BNC cables
from the VIC.
5. Remove the two retaining screws from the faceplate of the VIC.
6. Pull the VIC out of the Electronics Module.
7. Reverse the process to install the VIC.
Graphics Enhancer Plus RGBHV VIC
Grahics Enhancer Plus RGBHV VIC - Main Functions
!
Interface for Red, Green, and Blue image inputs
!
Interface for Horizontal and Vertical synchronization pulses
!
IIC Serial Data Bus communication
!
LED indication of VIC selection
!
Graphics Enhancement for black-on-white graphics and text.
Figure 5-33
Graphics Enhancer Plus I/O Diagram.