To Check The Front Usb Port; To Check The External Trigger Input - Keysight E4980A Service Manual

Troubleshooting
Function Specific Troubleshooting

To Check the Front USB port

Procedure
Step 1. Plug a USB memory, formatted with FAT16 or FAT32.
The following USB memory can be used.
Complies with USB 1.1; mass storage class, FAT16/FAT32 format;
maximum consumption current is below 500 mA.
Recommended USB memory: Keysight 512 MB USB Flash memory
(Keysight PN 1819-0195).
Use the prepared USB memory device exclusively for the E4980A/
E4980AL; otherwise, other previously saved data may be cleared. If you
use a USB memory other than the recommended device, data may not be
saved or recalled normally.
Step 2. Press [Save/Recall].
Step 3. Use the cursor keys to select the MEDIA field.
Step 4. Press the EXT softkey.
Step 5. Use the cursor keys to select the No. 11.
Step 6. Press the SAVE softkey to save configuration states into the USB memory.
Step 7. Press [Save/Recall].
Step 8. Use the cursor keys to select the MEDIA field.
Step 9. Press the EXT softkey.
Step 10. Use the cursor keys to select the No. 11.
Step 11. Press the RECALL softkey to recall configurations from the USB memory.
If the file save or recall operation fails, a failure in the USB port or A1 board is
suspected. Also check the cable between the USB port and A1 board.

To Check the External Trigger Input

Procedure
Step 1. Press [Preset] - CLEAR SETTING - OK to initialize the E4980A/ E4980AL.
Step 2. Press [Meas Setup].
Step 3. Using the cursor keys, select the TRIG field, and then select EXTsoftkey.
Step 4. Press [Display Format].
Keysight E4980A/E4980AL Precision LCR Meter 49