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Model
8904A
NOTE
The
SHIFT
key is the blue key. The
PRESET
key is labeled
in
blue
above the
*=
key.
After
3
seconds the display
will
time out and read
as
in step
1.
Press
SHIFT PRESET
as
often
as
needed to view the option and serial
display.
The displayed option numbers are only two digits (for example,
01)
even though the official option numbers are three digits (for example,
001).
If
the serial
suffix
is not
00000
but agrees with the
suffix
of the serial
number on the rear panel, the instrument already has its serial
suffix
correctly entered.
a.
b.
C.
d.
3.
Key in
SHIFT SPECIAL
8
7
ENTER SHIFT END.
The display should read
*****
Serial Number Installation
*****
Enter
5
digit serial number.
S/N=
NOTE
a.
The
SPECIAL
key is labeled
in
blue above the
LAST
key. The
END
key
b. After keying
in
SHIFT SPECIAL,
the display should be:
is labeled
in
blue above the
ENTER
key.
I
fl
Special
#
0
f2
Status
=
Off
f4
Exit
I
#
0
Last
state recalled
on
Dower
UD
c.
After keying
in
8
7,
the display should be:
fl
Special
#87
f2
Status
=
Off
f4
Exit
#
0
Last
state recalled on power up
d. After keying
in
ENTER,
the instrument will beep.
e. After keying
in
SHIFT END,
if
the display is
as
follows, the instrument
serial number cannot be entered. The A2 Digital Assembly must be
replaced.
I
*****
Serial Number Installation
*****
1
Serial number cannot be installed.
8-44
Troubleshooting (Serial Numbers)