Fig. 1
a15
a9
| a1 |
| a10 |
a16 | a3 |
| |
a12 a13 a14 |
|
a11
Fig. 5
a17a19 a18
a20
a1
Fig.2
a3
Fig.3
a9
Fig.4
a2
a4
a5
a6
a7
a8
Fig. 6
b1
b2b7
| b8 |
b3 | b9 |
b4 | b10 |
b5 | b12b11 |
b6 | b13 |
| |
| b16 |
| b15 |
| b14 |
c1
c2
c6
c3c7
c8
c4 | c9 | |
c5 | ||
| ||
| c10 |
Fig. 7
To facilitate explanation, the accompanying illustra- tion has been drawn to show all possible indicators; in actual operation, however, the display will only show those indicators appropriate to the current op- eration.