Agilent Technologies ENA Series Manual de instrucciones descargar pdf (Pagina 110)

110 Chapter 4

Troubleshooting

Function Specific Troubleshooting

Figure 4-19 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 A22 front panel keyboard or A21 PCI DSP

card is suspected. Also check the flat cable between the A21 and A22.

• 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 A22 board involving the RPG.

To Check the Touch Panel (Option 016 only)

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 (5183-4184) or touch-panel LCD

assembly (E5070-60102). (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 A20 digital motherboard.

• If no problem is found in the above checks, a failure in the A20 digital motherboard 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 E5061A/E5062A rear

panel.

• If the monitor screen view is the same as the LCD display, the problem seems in the

A20 board.

• If only the LCD display has a problem, check the flat cable between the A22 front

panel keyboard and A31 LCD connector.

• If the LCD is not illuminated with backlight, check A52 inverter board and the cable

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Agilent Technologies ENA Series Manual de instrucciones Pagina 110