NEC D2246 Maintenance Manual page 29

Table 2-2 Sector Select Switch Settings
(Segment 1
=
1)
SECTOR SWITCH SETTING
112/314151617181
'L+-H-+--+--4--+--....
=
1
, , , •
1~
I
TRACK
=
20,480 BYTES
SECTORS
2625242322212° PER
TRACK
o
0 0 0 0 0 1 1
0000010 2
0000011 3
0000100 4
o
0 0 0 101 5
0000110 6
0000111 7
0001000 8
0001001 9
o
0 0 1 0 1 0 10
0001011
0001100
0001101
0001110
0001111
0010000
o
0 100 0 1
o
0 100 1 0
0010011
o
0 1 0 100
o
0 1 0 101
0010110
0010111
0011000
0011001
0011010
0011011
0011100
0011101
0011110
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
2-12
BYTES
PER
SECTOR
20480
10240
6827
5120
4096
3414
2926
2560
2276
2048
1862
1707
1576
1463
1366
1280
1205
1138
1078
1024
976
931
891
854
820
788
759
732
707
683
LAST
SECTOR
SHORTER
o
o
-1
o
o
-4
-2
o
-4
o
-2
-4
-8
-2
-10
o
-5
-4
-2
o
-16
-2
-13
-16
-20
-8
-13
-16
-23
-10