2.5 Keyboard Structure
The keyboard is connected horizontally in eight blocks of five keys
and vertically m five blocks of eight keys. Figure 4.1 shows the
configuration. It follows that if any block of five keys fail the
fault is with KB2 circuitry or the 8-way membrane, and that if any
block of eight keys fail the fault is with KB1 circuitry or the 5-way
membrane. Possible keyboard faults are listed in paragraph 2.6
FIGURE 4.1 KEYBOARD FORMAT
4.10
To Next Page
Loading...
