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SS Board Explanation
Figure 26
After the video signal is processed on the D2 board, the sustain and erase pulses
are output to the SS board. The erase pulse is output at the beginning of each
scan period. The pulse is applied to the SS2 and SS3 boards to remove the
previous charge for the upper and lower sections of the display panel.
The sustain pulses are also developed on the D2 board and are applied after the
scan periods.