Keysight E5061B Network Analyzers 43
Troubleshooting
Function Specific Troubleshooting
• If the touch panel doesn't work correctly whereas the hardkeys function
normally, a failure seems in the touch screen controller assembly or
touch-panel LCD assembly. (The touch panel is not replaceable
independently of the LCD.)
• Check the cable between the touch screen controller and the serial
interface connector on the CPU module.
• If no problem is found in the above checks, a failure in the A50 CPU Module
is suspected.
To Check the LCD
Procedure
Step 1. Press key.
Step 2. Click Service Menu and, then, Test Menu in the softkeys menu.
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 E5061B
rear panel.
• If the monitor screen view is the same as the LCD display, the problem
seems in the CPU module.
• If only the LCD display has a problem, check the flat cable between the A52
Front Panel I/F board and CPU module.
• If the cables are normal, check the A51 LCD.
To Check the External Keyboard
Procedure
Step 1. Connect the external keyboard to the E5061B rear panel USB port.
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 A50 CPU Module may be faulty.
To Check the Mouse
Procedure
Step 1. Connect the mouse to the E5061B rear panel USB port.
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