Maintenance
Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual
4- 9
CAUTION.
To avoid damage to the Front Panel Standby/On switch assembly, do
not set the Display module assembly on a work surface. Sliding the oscilloscope
over the edge of the work surface could break off the On/Standby switch
assembly.
Follow these steps to remove the Rear Case assembly. Use a Torx T-15 screw-
driver tip. See Figure 5--1 on page 5--5.
1.
Remove the screw from the back and sides of the Rear Case assembly.
2.
Grasp the case and pull outwards to remove it.
Follow these steps to remove the Power Supply module. You need to have
previously removed the Rear Case assembly. Use a Torx T-15 screwdriver tip.
See Figure 5--6 on page 5--15.
1.
Remove the 3 screws that secure the Power Supply module to the chassis.
2.
Disconnect the power supply fan and connectors from the I/O board and the
Main board.
3.
Lift the Power Supply module off the chassis.
Power Supply Fan.
Follow these steps to remove the Power Supply fan assembly.
You need to have previously removed the Rear Case assembly and Power Supply
assembly. Use a Torx T-15 and a P2 screwdriver tip. See Figure 5--6 on page
5--15.
1.
Remove the 3 screws that attach the power supply cover.
2.
Lift the Power Supply cover off.
3.
Use the P2 screwdriver tip and remove the 2 screws that attach the fan to the
cover.
Power Supply Board.
Follow these steps to remove the Power Supply board. You
need to have previously removed the Rear Case assembly and Power Supply
assembly. Use a Torx T-15 screwdriver tip. See Figure 5--6 on page 5--15.
1.
Remove the 3 screws that attach the Power Supply cover.
2.
Lift off the Power Supply cover.
3.
Remove the 4 screws that attach the Power Supply board to the Power
Supply bracket.
Rear Case
Power Supply Module
Summary of Contents for 4000 Series
Page 8: ...Service Safety Summary vi Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual ...
Page 13: ...Operating Information ...
Page 14: ......
Page 16: ...Operating Information 1 2 Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual ...
Page 17: ...Theory of Operation ...
Page 18: ......
Page 22: ...Theory of Operation 2 4 Tektronix 4000 Series Digital Phosphor Oscilloscopes Service Manual ...
Page 23: ...Adjustment Procedures ...
Page 24: ......
Page 37: ...Maintenance ...
Page 38: ......
Page 55: ...Mechanical Parts List ...
Page 56: ......