Clearing The Eerom - HP 200 Service Manual

The block of text on the service configuration plot that shows the contents of the
EEROM, appears in the form shown in Table 8 3. This table is a text block from a sample
plot. The contents of the EEROM that you are testing will differ from this sample.
Table 8-3. Sample EEROM Contents Text Block
EEROM contents:
0: 55 aa 5a 0
10: 0 0 44 31
20: 3 20 3 a3
30: a3 a3 0 21
40: f2 0 2 25
50: 0 0 0 0
60: e ed b 3a
70: 0 0 0 0
80: ff ff ff ff
90: ff ff ff ff
a0: ff ff ff ff
b0: ff ff ff ff
c0: ff ff ff ff
d0: ff ff ff ff
e0: ff ff ff ff
f0: ff ff ff ff

Clearing the EEROM

Careful: If you clear the EEROM, you will then need to perform all of the plotter
calibrations. (Details D chapter 7.)
To clear the EEROM, perform the following procedure:
1 Switch the plotter off.
2 While holding both the Cancel and Replot keys down,
switch the plotter on.
3 Once the Busy LED lights up, release the Cancel and Replot keys.
C3187 90000
20 0 0 0 –
0 0 0 0 –
a3 a3 a3 a3 –
0 0 0 81 –
27 f2 f2 9 –
0 8d 0 1 –
16 0 0 0 –
0 0 0 0 –
ff ff ff ff –
ff ff ff ff –
ff ff ff ff –
ff ff ff ff –
ff ff ff ff –
ff ff ff ff –
ff ff ff ff –
ff ff ff ff –
2b 0 0 0 3a
0 0 0 0 0
a3 a3 a3 a3 a3
88 35 0 0 0
9 e0 e1 f0 0
de ed 57 3e d3
2 0 0 ca c
0 0 0 0 0
ff ff ff ff ff
ff ff ff ff ff
ff ff ff ff ff
ff ff ff ff ff
ff ff ff ff ff
ff ff ff ff ff
ff ff ff ff ff
ff ff ff ff ff
Removal and Replacement
0 0 0
0 0 0
a3 a3 a3
e0 fe 1d
5 0 0
8e db 3d
4 39 0
0 0 c9
ff ff ff
ff ff ff
ff ff ff
ff ff ff
ff ff ff
ff ff ff
ff ff ff
ff ff ff
Replot
Cancel
8 29