HP 1652B Getting Started Manual page 706

Removal and
When necessary, refer to other removal procedures.
Replacement of
the Power
SUPPlY
Assembly
1. Turn off the instrument and disconnect the power cable.
2. Remove the six screws from the top and the two screws from each side of the
instrument's top cover.
3. Lift off the top cover.
4. Remove the Disk Drive
5. Remove the disk drive cable assembly (W3) from the disk drive panel and let
it lay off the side of the instrument.
6. Remove the cable (W2) that connects the Power Supply to the Main
Assembly.
7. Disconnect the line filter cable from the Power Supply.
8. Remove the two locking pins that secure the Power Supply at the right front
and rear corners of the instrument cabinet. Pull these pins up and out of the
instrument.
9. Slide the power supply through the side of the cabinet as in the previous
figure 6D-2.
10. Replace the power supply by reversing this procedure.
de
I
Note d
When you reinstall the top cover, insert the four screws on the sides of the cover
f
ust while making sure the cover fits into the grooves of the instrument cabinet.
Then insert the six screws in the top of the cover.
Removal and
Replacement
of the
Oscilloscope
Assembly
When necessary, refer to other removal procedures.
1. Turn off the instrument and disconnect the power cable.
2. Remove the six screws from the top and the two screws from each side of the
instrument's top cover.
3. Lift off the top cover.
4. Remove the Disk Drive and Power Supply.
5. Remove the Line Filter Switch Assembly from the rear panel.
6. Disconnect the probe compensation cable from the oscilloscope assembly.
7. Disconnect the ground cable of the line filter from the oscilloscope assembly.
8. Disconnect the cable assembly W8 from connector 52 on the oscilloscope
assembly.
HP 1652B/1653B
Service Manual
Assembly Removal and Replacement
6D-5