Figure 6-8 Troubleshooting Guide - Rs232/422 Interface - Agilent Technologies E4416A Service Manual

All/Other
Which POST Test
Serial Interface
Select
System/Inputs
Remote Interface
Select Interface
GPIB (IEEE 488)
Prev
Command Set
SCPI
Connect power meter
to a GP-IB controller
and send the
command "*RST"
meter reset?
Investigate power
meter failure
A2 Processor assy
defective

Figure 6-8 Troubleshooting Guide - RS232/422 Interface

E4416A/E4417A Power Meters Service Guide
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Start
Power up
meter
POST
No
Pass?
failed?
Did power
Yes No
No
A4 Comms assy
defective
End
Yes
Select
System/Inputs
Remote Interface
Select Interface
RS422
Connect RS422 Self Test
Connector to RS232/422
Connector on rear panel
Select Connect RS232 Self Test
System/Inputs Connector to RS232/422
More
Connector on rear panel
Service
Self Test
Individual
More
Serial Interface
RS422 Loop Back
Run Test
Yes
Test Pass?
No
Troubleshooting 6
Select
Done
System/Inputs
Remote Interface
Select Interface
RS232
Select
System/Inputs
More
Service
Self Test
Individual
More
Serial Interface
RS232 Loop Back
Run Test
Test Pass?
Yes
No fault found with
RS232/422 serial
interface check user
application/
implementation
125