Internal Switches

Table 2±9. Option Output Switch S1

Switch Position

Output Signal

Upper

Shutter monitor output

Lower

Pixel clock output

Figure 2±7. Option Output Switch S1

Upper

Lower

2.3.3Gamma Switch SW1

Gamma switch SW1 changes the gamma characteristics as listed in Table 2±10 and shown in Figure 2±8.

Table 2±10.Gamma Switch SW1

Switch Position

Gamma Characteristics

Upper

γ [gamma] = 1 (OFF)

Center

Not used

Lower

γ [gamma] = 0.45 (ON)

Figure 2±8. Gamma Switch SW1

Upper

Center

Lower

2.3.4AC/DC Output Switch SW4

Switch SW4 switches the output between ac and dc as listed in Table 2±11 and shown in Figure 2±9.

Table 2±11. AC/DC Output Switch SW4

Switch Position

Output Conversion

Upper0

DC output

Center

Not used

Lower

AC combined output

Figure 2±9. AC/DC Output Switch SW4

Upper

Center

Lower

2-8

Nomenclature and Use of Each Component

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Texas Instruments MC-780PIx manual ±9. Option Output Switch S1, ±10.Gamma Switch SW1, 4 AC/DC Output Switch SW4