70
6000 X-Series Oscilloscopes Service Guide
4
Troubleshooting
1
Disconnect any external cables from the front panel.
2
Disconnect the power cord.
3
Remove the cabinet following the instructions on
.
4
Remove the power supply shield, the AC input shield, and the probe power
shield following the instructions starting on
.
Other advice:
•
Place the front deck in a cover or rest it on a cloth to prevent scuffing the
front panel knobs.
5
Make sure all cables are properly connected.
CAUTION
REMOVE POWER TO AVOID DAMAGE !
Do not disconnect any cables or remove any assemblies while power is applied to the oscilloscope, or
damage to the oscilloscope can occur.
CAUTION
AVOID ESD DAMAGE TO COMPONENTS !
ELECTROSTATIC DISCHARGE (ESD) can damage electronic components. Use proper ESD precautions
when doing any of the procedures in this chapter. As a minimum, place the oscilloscope on a properly
grounded ESD mat and wear a properly grounded ESD strap.
CAUTION
MAKE SURE EARTH GROUND IS MAINTAINED FOR THE FRONT DECK !
If separating the front and rear decks (for example, to check the display power supply), connect a cable
with alligator clips between the rear deck chassis and the front deck chassis, or connect a BNC cable
from one of the BNCs on the acquisition board to a known grounded BNC on your workbench.
CAUTION
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
acquisition board where the heat sinks are located. Otherwise, damage to the components can occur.
If the cabinet of a 6000 X-Series oscilloscope is removed but the main power supply shield remains
installed and the bottom holes are not blocked, the instrument will cool properly.
Содержание InfiniiVision 6000 X Series
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