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AWG710 Service Manual
6-51
Troubleshooting
This subsection contains information and procedures designed to help you isolate
faulty modules in the waveform generator. If a module needs to be replaced,
follow the Removal and Installation Procedures in this section.
This subsection consists of the following flowcharts:
H Figure 6–25: Primary Troubleshooting Procedure on page 6–52.
H Figure 6–26: Troubleshooting Procedure 1 - Power Supply Module on page
6–53.
H Figure 6–28: Troubleshooting Procedure 2 - CPU or Front-panel Module on
page 6–55.
H Figure 6–29: Troubleshooting Procedure 3 - LCD and backlight on page
6–56.
H Figure 6–31: Troubleshooting Procedure 4 - Module Isolation on page 6–58.
See Figure 6–27 for power supply connectors and Figure 6–30 for the A10
connector board.
Diagnostics
The waveform generator has two levels of internal diagnostics that focus on
verifying, adjusting, and if necessary, isolating faulty modules.
Both levels of the internal diagnostics report any bad modules and/or interfaces.
If a bad module and/or interface is found, use the troubleshooting procedures in
this section to determine which module needs to be replaced.
The two levels of diagnostics are the short confidence set and the extended set
that tests the oscilloscope circuitry in depth and takes more time. Upon powering
on, the waveform generator automatically executes the short set. The extended
set is optional and is executed by using the following procedure:
Prerequisites: Power on the waveform generator and allow a 20 minute warm-up
before doing this procedure:
1. Display the diagnostics menu: Press UTILITY ! Diag.
2. Select the menu: Select ALL using the general purpose knob.
3. Run the diagnostics: Press Execute Diagnostic.
4. Wait: The internal diagnostics do an exhaustive verification of proper
function. This verification will take several minutes. When finished, the
waveform generator will display a report listing any bad modules and/or
interfaces.