Agilent Technologies 2000 X-Series Service Manual page 86

4 Troubleshooting
C A U T I O N
86
USE AN EXTERNAL FAN TO AVOID OVERHEATING COMPONENTS !
When you remove the oscilloscope cover and main shield, use an external fan to
provide continuous air flow over the heat sinks. Air flow over the heat sinks is
reduced when the cover and main shield are removed, which leads to higher than
normal operating temperatures. Have the fan blow air across the system board
where the heat sinks are located. Otherwise, damage to the components can
occur.
If the cover of a 2000/3000 X-Series oscilloscope is removed but the main shield
remains installed and the bottom holes are not blocked, the instrument will cool
properly.
2000/3000 X-Series Oscilloscopes Service Guide