
n
If any of the following LED patterns are present, the firmware disk may be defective.
LED
L
s
n
If any other LED pattern is present, the CPU board is defective.
Note
If firmware did not load, a red LED on the CPU board will be flashing.
n
If the following LED pattern is present on the CPU board, suspect the disk drive or
associated cabling:
(front of instrument
Store the Analyzer Serial Number
This procedure stores the analyzer serial number in the A7 CPU assembly
1.
2.
3.
Press
DISPLAY MORE TITLE ERASE TITLE to erase the HP logo from the display.
Enter the analyzer serial number (recorded earlier) by using an external keyboard, or by
rotating the front panel knob to position the arrow below each character of the instrument
serial number, and then pressing SELECT LETTER to enter each character. Enter a total of
ten characters.
Press BACKSPACE if you made a mistake.
Press DONE when you have finished entering the title.
Caution
You
correct mistakes after you perform step 4, unless you contact
the factory for a keyword to clear the serial number. If needed, this
keyword should be used in the next procedure, “Store the Analyzer Option(s)
Information,” for clearing the incorrect serial number. After this is done,
repeat the procedure “Store the Analyzer Serial Number.”
4. Press
SERVICE MENU TESTS
EXECUTE TEST YES
5. Observe the analyzer for the results of the routine:
12
Installation Note 88720-90372