Agilent Technologies E5061B, Руководство по обслуживанию

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Chapter 2 39
Troubleshooting
Function Specific Troubleshooting
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Step 1. Press key.
Step 2. Click
Service Menu
and, then,
Test Menu
in the softkeys.
Step 3. Click
Front Panel
in the test menu. This opens "Front Panel Test" dialog box as shown in
Figure 2-21.
Figure 2-21 Front Panel Test dialog box
Step 4. Randomly press the front panel keys. The key code along with the name of the pressed key
are displayed in the dialog box as shown in Figure 2-22. Turn the rotary knob clockwise or
counterclockwise. The dialog box indicates the direction of the turned knob and a count of
RPG output.
Figure 2-22 Key code and key name display example
Step 5. To exit the front panel test, press key three times.
• If multiple keys fail to work, a problem in A52 Front Panel I/F board or A50 CPU
Module is suspected. Also check the flat cable between the A52 Front Panel I/F board
and CPU module.
• If only a specific key doesn't work, check first if the key is subsided in the panel.
• If the rotary knob doesn't work, check the A52 Front Panel I/F board involving the
RPG.
To Check the Touch Panel
Procedure
By touching the LCD display panel, select or change the setting of a function in the softkey
menu and, then, perform the same operation with hardkeys.
• 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.