Tektronix TDS3000 Manual do Utilizador Página 113

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Maintenance
TDS3000 Series Service Manual
6–37
Continued from Figure 6–24.
Use DMM to measure
voltages on front-panel BNC
connector pads (see BNC
connector diagram at right).
–15 VDC
( 1.2 V)
–5 VDC
( 0.15 V)
+5.1 VDC
( 0.15 V)
+15 VDC
( 1.2 V)
Any front panel
BNC connector
Proceed to Figure 6–30.
Yes
Are all voltages within
tolerance?
No
Troubleshoot power
distribution problem
(Figure 6–26).
Power off oscilloscope.
Remove battery if installed.
Connect the AC power cord.
Power on oscilloscope.
Ground
(BNC shell)
Figure 6–25: Power-on troubleshooting procedure
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