Keysight N5171B EXG Service Manual page 64

Troubleshooting
Troubleshooting Assembly Level Problems
7. After connecting to the unit via VCP, the virtual front panel display should
8. If steps 1 through 5 does not provide a likely Front Panel fault.
9. Connect via LAN or USB cable to the rear of the unit and connect via the
Keysight X-Series Signal Generators Service Guide
appear to be similar to what is normally viewed on the Front Panel display,
as shown below.
— If the display appears to be normal, the most likely cause is a faulty
LCD Display. First replace the LCD display.
— If replacing the LCD display does not correct the fault then replace
the Interface Scan assembly.
— If the VCP Front Panel is not visible, go to
troubleshoot it.
— If the VCP Front Panel is not a normal representation but appears to
be corrupted with vertical lines (see below), visually inspect W1
Front Panel Ribbon Cable for damage and check cable for
continuity.
Virtual Control Panel (VCP). Go to "Virtual Control Panel Operation"
located in the User's/Service Guide. Then return and continue testing via
the use of the VCP.
"A5 CPU" on page 20 to
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