Hardware Errors
6-12 72A-1589 Rev. C 02/01
D
DD
D
R
RR
R
A
AA
A
F
FF
F
T
TT
T
3
33
3
/
//
/
5
55
5
/
//
/0
00
0
1
11
1
Table 6.5 Hardware Errors
Error Message Description Action
Cal A/D Hardware
failure
The calibration analog to digital
conversion hardware failed.
Replace the analog I/O board.
Refer to ”Circuit Board
Replacement” on page 7-17.
DAC Calibration
hardware failure
The digital to analog converter
calibration hardware failed.
Replace the analog I/O board.
Refer to ”Circuit Board
Replacement” on page 7-17.
DAC Calibration
out of limits
The digital to analog converter
calibration is out of limits.
Replace the analog I/O board.
Refer to ”Circuit Board
Replacement” on page 7-17.
Analog GND sense
failed
The analog GND sense failed. Check the power supply with a
voltmeter (see page 6-9).
• If the voltages are not correct
replace the power supply board.
• If the voltages are ok replace the
analog I/O board.
Refer to ”Circuit Board
Replacement” on page 7-17.
Analog I/O –5V out
of range
The instrument reads out of range. Check the power supply with a
voltmeter (see page 6-9).
• If the voltages are not correct
replace the power supply board.
• If the voltages are ok replace the
analog I/O board.
Refer to ”Circuit Board
Replacement” on page 7-17.
Analog I/O +5V out
of range
The instrument reads out of range. Check the power supply with a
voltmeter (see page 6-9).
• If the voltages are not correct
replace the power supply board.
• If the voltages are ok replace the
analog I/O board.
Refer to ”Circuit Board
Replacement” on page 7-17.