4-20
Service Guide E8364-90001
Troubleshooting
PNA Series Microwave Network Analyzers
Front Panel Troubleshooting
E8362A, E8363A, E8364A
A3 Front Panel Interface Board
This assembly performs the following functions:
• It routes USB signals between the front-panel USB connector and the A15 CPU board.
• The speaker produces the audio output from signals supplied by the A15 CPU board.
• It supplies power to the two front-panel probe power connectors.
• It routes key pad commands from the A1 keypad to the A15 CPU board.
• It routes display signals from the A15 CPU board to the A2 display assembly.
Checking the USB Port
To verify proper operation of the USB port:
• Connect a known good USB device, such as a USB mouse.
• Wait 15 seconds for the analyzer to verify the device connection, and then check the
operation of the USB device.
• If the device performs correctly, the USB port is functioning properly.
• If the device does not perform correctly, the USB port is faulty. Refer to
A3 Front Panel Interface Board” on page 7-12
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:
— On the
System
menu, point to
Configure,
and then click
Control Panel
.
— Click the
Sounds and Multimedia
icon. Follow the normal Windows procedure to
check the sound drivers and volume. If the audio is still not heard, suspect a faulty
speaker. Refer to
“Removing the A3 Front Panel Interface Board” on page 7-12
Checking the Probe Power Connectors
To verify the probe power operation, refer to
“Power Supply Check” on page 4-7
Checking the Operation of the Key Pad Commands
To verify the key pad functionality, refer to
“A1 Front Panel Keypad and RPG Test” on
Checking the Display
To verify the display functionality, refer to
“A2 Display Test” on page 4-19
.
Summary of Contents for E8362A
Page 11: ...Service Guide E8364 90001 1 1 1 Safety and Regulatory Information ...
Page 19: ...Service Guide E8364 90001 2 1 2 General Product Information ...
Page 29: ...Service Guide E8364 90001 3 1 3 Tests and Adjustments ...
Page 79: ...Service Guide E8364 90001 4 1 4 Troubleshooting ...
Page 139: ...Service Guide E8364 90001 5 1 5 Theory of Operation ...
Page 169: ...Service Guide E8364 90001 6 1 6 Replaceable Parts ...
Page 215: ...Service Guide E8364 90001 7 1 7 Repair and Replacement Procedures ...
Page 287: ...Service Guide E8364 90001 A 1 A Error Terms ...
Page 303: ...Service Guide E8364 90001 B 1 B Option Enable Utility ...
Page 309: ...Service Guide E8364 90001 C 1 C Firmware Upgrades ...
Page 313: ...Service Guide E8364 90001 D 1 D Operating System Recovery ...