Specifications

Printer Output
Problem
This condition can be a result of a failure of the printer, printer cable, or
CPU module.
1. Connect a different printer and determine if the instrument works
with that printer. If so, replace the printer.
2. Replace the printer cable.
3. Replace the CPU module.
GPIB Interface
Problem
This condition can be a result of a failure of the CPU module.
1. Connect a GPIB cable between the IEEE488 port and the Dedicated
GPIB port on the rear panel.
2. Press the Utility front panel key.
3. Select the menu soft keys as follows:
DIAGNOSTICS
PERIPHERAL TESTS
GPIB INTERFACE
4. Follow the instructions on the screen until the test is completed.
5. If the GPIB Interface test fails, replace the CPU Module.
GPIB Address
Retention
Problem
This condition can be a result of a failure of the Lithium Battery.
Replace the Lithium Battery (p/n: 633-25) on the CPU as described on
page 7-15.
SOURCE MODULE Possible Source Module related system failures include:
q
Phase-lock loop failures
q
ALC failures
q
Insufficient dynamic range
q
Excessive high level noise
q
Excessive harmonics
q
Slow sweep speed
TROUBLESHOOTING HARDWARE TROUBLESHOOTING
MS462XX MM 6-9
CAUTION
Ensure that no other GPIB cables are connected to either of the two rear
panel GPIB connectors when performing this test.