Teledyne 9110AH Instruction Manual page 154

TELEDYNE Model 9110AH NO
A. Turn on the instrument.
B. Enter the SETUP-MORE-DIAG menu.
C. Select the ANALOG OUTPUT test. This causes the M9110AH to output a 5 step voltage
pattern to the 4 analog outputs on the rear panel. The status of the test is shown on the
front panel display. The scrolling can be stopped at any voltage by pressing the key
below the changing percentage display. The values are 0-20-40-60-80-100% of whatever
voltage range has been selected. For example the voltages would be 0, 1, 2, 3, 4, 5V if the
5V range had been selected.
D. Use a DVM on each of the analog output channels to confirm the correct voltages.
If the voltages step, but are the wrong values, the V/F board may be out of calibration.
3. Digital input channel test.
The digital I/O section of the V/F board has 8 input bits and 24 output bits. Two of the 8
input bits are assign as calibration controls. See Section 7.4 for information calibration
using external contact closures.
To test the digital inputs:
A. Turn on the M9110AH.
B. Connect a jumper wire across pins 1 and 2 of the "REMOTE IN" rear panel connector as
shown in Figure 2-2.
C. Shortly after closure is made the instrument should switch into zero mode as indicated
on the front panel display.
D. Remove the jumper. Shortly after the jumper is removed the instrument should exit the
zero calibrate mode.
4. Digital output channel test.
There are 24 output bits on the V/F board. The 24 bits are made up of 3 - 8 bit ports. It is
possible for a single 8 bit port or even a single bit within a port to fail.
A quick observational test of the digital outputs is to observe the LED's in the Power Supply
Module (Refer to Figure 9-5 for the location of the LED's in the PSM). The state of the
LED's can be checked from the Table 9-9. The comment section assumes the M9110AH has
been running for at least 45 minutes.
A more detailed test is in the DIAGNOSTIC menu. See Diagnostic tests in Section 9.1.3.
Analyzer Operator Manual, 01620, Rev. F
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