YOKOGAWA DLM3054HD Mixed Signal Oscilloscope

Maintenance and troubleshooting

1. Daily maintenance

Cleaning: Use a dry soft cloth to wipe the display screen and housing. If there are stains, dip a small amount of water to wipe them (do not use solvents such as alcohol and acetone to avoid damaging the coating); If there is dust on the BNC terminal and USB interface, it can be blown clean with compressed air (pressure ≤ 0.3MPa).

Probe maintenance: Regularly check whether the probe cable is damaged and whether the probe tip is oxidized (lightly polish with fine sandpaper during oxidation); Simulate probe calibration every 6 months to ensure measurement accuracy (can be done using the oscilloscope's built-in "Probe Calibration" function or sent for calibration).

Storage media: USB devices and SD cards (if any) need to be formatted regularly (using oscilloscope formatting function) to avoid file fragmentation affecting storage speed; Long term unused storage media should be stored in a dry environment to prevent data loss.

2. Troubleshooting

Possible causes and solutions for the fault phenomenon

Power cord not connected properly, power switch not turned on, internal power failure. Check the power cord connection and confirm that the power switch is turned on; If there is still no response, contact Yokogawa for repair

The waveform has no display, the channel is not turned on, the probe is not connected/damaged, the trigger is not set correctly, and the signal is not input. Press the channel key to turn on the corresponding channel, check the probe connection and attenuation ratio, reset the trigger source and threshold, and confirm that the measured signal is normal

Unstable trigger threshold inappropriate, excessive signal noise, incorrect trigger source selection. Fine tune the trigger threshold to the signal edge, turn on "trigger filtering" (reduce noise interference), and replace with a more stable trigger source

Data saving failed due to unrecognized USB device, full storage medium, unsupported file format. Re plug and unplug the USB device, delete useless files to free up space, and select a format supported by the oscilloscope (such as. wfm/. csv)

Remote control failed due to network disconnection, IP address mismatch, VISA driver not installed. Check Ethernet/USB connection, confirm that oscilloscope and PC IP are in the same network segment, and reinstall VISA driver

3. Calibration and Maintenance

Calibration cycle: It is recommended to conduct a comprehensive calibration once a year. You can contact the authorized service center of Yokogawa or refer to the "User Calibration Manual" for self calibration (requiring a standard signal source, such as Yokogawa FG420 function generator).

Maintenance restrictions: It is prohibited to disassemble the instrument by oneself (disassembly will void the warranty). If there is a hardware failure (such as abnormal channel or damaged screen), please contact Yokogawa Global Service Center (contact information can be found in PIM 113-01Z2) and have it repaired by a certified engineer.