Keysight E5071C ENA - To Check the External Keyboard; To Check the Mouse

98 Keysight E5071C ENA Network Analyzers
Troubleshooting
Function Specific Troubleshooting
4-
Step 3. Click Display in the test menu. The whole of the LCD screen turns Red, Green,
Blue, White and Black every 2 seconds and returns to the measurement view.
If the color test screen doesn't appear correctly, perform step 4.
Step 4. Connect an external VGA monitor to the VIDEO output port on the E5071C
rear panel.
• If the monitor screen view is the same as the LCD display, the problem
seems in the PCA PCI DSP Card. Check first if the PCA PCI DSP Card is
securely connected to the CPU Mother Board Assembly.
• If only the LCD display has a problem, check the flat cable between the PCA
Front Key and PCA Digital Bridge.
• If the LCD is not illuminated with backlight, check the Inverter Unit
Assembly and the cable between the Inverter Unit Assembly and PCA Front
Key. Also check the cables between the LCD-TPANEL Assembly and
Inverter Unit Assembly.
• If the cables are normal, check the LCD-TPANEL Assembly.
To Check the External Keyboard
Procedure
Step 1. Connect the external keyboard to the E5071C rear panel USB connector.
Step 2. Turn the instrument on.
Step 3. Press key.
Step 4. Press and keys on the external keyboard, and verify that the cursor on
the menu bar moves up and down. If it doesn't work, the external keyboard or
the CPU Mother Board Assembly may be faulty.
To Check the Mouse
Procedure
Step 1. Connect the mouse to the E5071C rear panel USB connector.
Step 2. Turn the instrument on.
Step 3. Move the mouse and verify that the mouse pointer moves smoothly. If it
doesn't move smoothly, check first whether a foreign substance (dust, lint,
etc.) is in the track ball hole of the mouse or not.
Step 4. Verify that the mouse buttons work normally. If any button doesn't work or
the mouse pointer doesn't move, a failure in the mouse or the CPU Mother
Board Assembly is suspected.