Troubleshooting 4
6000 X-Series Oscilloscopes Service Guide 77
To check power to the acquisition board
This procedure checks the power supplies from the power board to the acquisition
board. Values outside the expected range help identify bad assemblies.
1 Follow the instructions in “To prepare for internal assembly
troubleshooting" on page 69.
2 Connect the negative lead of the multimeter to a ground point on the
oscilloscope.
3 Connect the power cord, and turn on the oscilloscope.
4 First check the bulk power supply voltage: “To check the power supply DC
output" on page 73
5 Next, check the supplies from the power board to the acquisition board:
Figure 15 Location of the J105 acquisition board power connector
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