45
Personal VDA Connectors
FIGURE 4-13: Personal VDA I/O Connectors
VIDEO INPUT
This connector is used to input composite NTSC video to the VDA card. This signal is AC coupled and fed to the VDA
video amplifiers.
VIDEO OUTPUT 1
This is output 1 of the VDA card, its output impedance is 75O. The output gain can be adjusted +/- 2dB using
potentiometer ARV1.
VIDEO OUTPUT 2
This is output 2 of the VDA card. Its output impedance is 75O. The output gain can be adjusted +/- 2dB using
potentiometer ARV1.
VIDEO OUTPUT 3
This is output 3 of the VDA card. Its output impedance is 75O. The output gain can be adjusted +/- 22dB using
potentiometer ARV2.
VIDEO OUTPUT 4
This is output 4 of the VDA card. Its output impedance is 75O. The output gain can be adjusted +/- 2dB using
potentiometer ARV2.
VIDEO INPUT
VIDEO OUTPUT 1
VIDEO OUTPUT 2
VIDEO OUTPUT 3
VIDEO OUTPUT 4
TERMINATION SWITCH LEFT 75-OHM/RIGHT BRIDGE
ARV1 GAIN POT
ARV2 GAIN POT
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