JVC 250 Graphics Enhancer Plus RGBHV VIC, Grahics Enhancer Plus RGBHV VIC - Main Functions

Chapter 5---Electronics

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 5-33Graphics Enhancer Plus I/O Diagram.

Model 250 Service Manual 5-61