Chapter 5---Electronics
5-62 Model 250 Service Manual
Figure 5-34
Graphics Enhancer Plus faceplate.
Graphics Enhancer Plus VIC - Inputs
R - red image from source input (0.7-1.0 Vpp).
G - green image from source input (0.7-1.0 Vpp).
B - blue image from source input (0.7-1.0 Vpp).
H - horizontal sync from source input
V - vertical sync from source input
+15 V - power for analog circuitry
-15 V - power for analog circuitry
+5.1 V - power for digital circuitry
+5.1 V Stdby
IIC CLK - IIC clock line
IIC DATA - IIC data line
IIC SINT - IIC interrupt line
Graphics Enhancer Plus VIC - Outputs
RED_VIC - red image to the Video Processor PCB (0.7-1.0 Vpp).
GRN_VIC - green image to the Video Processor PCB (0.7-1.0 Vpp).
BLU_VIC - blue image to the Video Processor PCB (0.7-1.0 Vpp).
H_VIC - horizontal sync to the Video Processor PCB
V_VIC - vertical sync to the Video Processor PCB
/SEL_VIC - VIC select line to the Video Processor PCB
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