Troubleshooting 4
6000 X-Series Oscilloscopes Service Guide 79
VP13VF
VP13VF is a filtered +13V supply that is the source for other supplies on the
acquisition board.
When connected to an acquisition board, VP13VF should measure >+12.8 V using
a DMM.
If VP13VF is less than <+12V, it indicates that there may be abnormal current draw
on acquisition board. The suggested troubleshooting steps:
1 Turn off the oscilloscope.
2 Disconnect the power cord.
3 Disconnect cable assembly from the power board’s J105 connector.
4 Connect the power cord, and turn on the oscilloscope.
5 Using a DMM in DC volts mode, measure VP13VF (J105 pin 20).
The DMM should show DC voltage close to 12.9 V to 13 V.
If a significant voltage drop is observed without J105 connected, replace the
power board.
If the voltage is in the proper range when the cable assembly is disconnected:
a Turn off the oscilloscope.
b Disconnect the power cord.
c Reconnect cable assembly J105.
d Check the various supplies on acquisition board that are derived from
VP13VF.
To Next Page
Loading...
Need help?
General
