Agilent Technologies E4980A - Page 51

Chapter 4 51
Troubleshooting
Function Specific Troubleshooting
4. Troubleshooting
interface board.
Step 4. Replace the scanner interface board.
Step 5. Set DC power supply output voltage +5 V. Connect TP2 (GND) on the bias interface
simulator to ‘-’ terminal of the power supply. Then connect TP1 (Vcc) on the simulator to
‘+’ terminal of the power supply. (Refer to
Figure 4-13.)
Figure 4-13 Scanner Simulator Connections
NOTE DC power for the bias interface simulator can be supplied from the E4980A instead of an
external DC power supply.
Step 6. Connect the scanner simulator to the scanner interface connector on the E4980A’s rear
panel shown in
Figure 4-13.
Step 7. Connect the 1 k standard to the UNKNOWN terminal on the E4980A’s front panel.
Step 8. Turn the E4980A ON.
Step 9. Press [System].
Step 10. Press the SELF TEST softkey to display the SELF TEST page.
Step 11. Use the CURSOR arrow keys to move the cursor to the TEST MENU field.
Step 12. Use the softkeys to select the SCANNER INTERFACE test.
Softkey Function
INCR + Increments the test number of the Test Menu.
DECR - Decrements the test number of the Test Menu.
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DC
DC
UNKNOWN
Discharge test device beforeconnecting
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DCSource
(Option 001)
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DC Bias
DC
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Pres et
Display
Format
Mea s
Set u p
Rec al l A Rec al l B
Save /
Rec al l
System
Local /
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