To Check The Scanner Interface Function - Keysight Technologies E4981A Service Manual

Troubleshooting
Function Specific Troubleshooting

To Check the Scanner Interface Function

Perform this test only when troubleshooting the Interface Board. This test verifies the
scanner interface function.
Equipment
Table 4-8 Equipment List of the Scanner Interface Function Test
Scanner Simulator
DC Power Supply
1 kΩ Standard
Procedure
Step 1. Disconnect the power cable from the E4981A and allow 1 minute for the internal
capacitors to discharge.
NOTE Dangerous energy/voltage exists when the E4981A is in operation, and for a time after it is
powered down. Allow 1 minutes for the internal capacitors to discharge.
Step 2. Remove the PSU Deck according to the procedure for describing in
Removale" on page
NOTE
The interface board contains electronic components that can be damaged by static
electricity through electrostatic discharge (ESD). To prevent ESD damage, maintain
frequent contact with any bare sheet metal surface on the chassis. A grounding wrist strap
(or similar device) is useful for this purpose. Handle the board carefully at all times. Avoid
touching electronic components or circuit paths.
NOTE Before performing
them to the same settings at the end of this function test.
Step 3. Set S2 and S3 on the Interface Board to the same settings as when the board is shipped
from the factory referring to
Table 4-9
Table 4-10
64
Keysight p/n 04278-65301
Keysight E3610A
Keysight 42030A (42037A)
95.
Step 3, note the switch settings on the Interface Board in order to return
Figure 4-11,
Setting Bit Switch (S2)
Bit
1-8
Setting Bit Switch (S3)
Bit
1
2
Table 4-9, and .Table 4-10
Default
Off
Default
Off
Off
"PSU Deck Assembly
Chapter 4