A1 Front Panel Interface Board - Keysight Technologies N5221A Service Manual

Troubleshooting
Front Panel Troubleshooting

A1 Front Panel Interface Board

This assembly performs the following functions:
— It routes USB signals between the front-panel USB connector and the A17
CPU board.
— The speaker produces the audio output from signals supplied by the A17
CPU board.
— It routes key pad commands from the keypad to the A17 CPU board.
— It routes display signals from the A17 CPU board to the A3 display
assembly.
Checking the Speaker
If no audio is heard:
— Verify that the volume is set correctly and the proper sound driver is loaded;
do the following:
— Press UTILITY
— Click on the Sounds and Audio Devices entry. Follow the normal
Checking the Operation of the Key Pad Commands
To verify the key pad functionality, refer to
on page
Checking the Display
To verify the display functionality, refer to
4-20
System
Windows procedure to check the sound drivers and volume. If the
audio is still not heard, suspect a faulty speaker. Refer to
the A1 Front Panel Interface Board and Keypad Assembly" on
page 7-10.
4-16.
, then , then
Configure
"Front Panel Keypad and RPG Test"
"A3 Display Test" on page
Keysight N5221A/22A Service Guide
.
Control Panel...
"Removing
4-19.