Texas Instruments MC-780PIx manual ±9. Option Output Switch S1, ±10.Gamma Switch SW1

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