Procedure 14. W3 Line Switch Cable (8560E); Removal - HP 8560E Service Manual

Assembly Replacement

Procedure 14. W3 Line Switch Cable (8560E)

Procedure 14. W3 Line Switch Cable (8560E)

Removal

To remove the line switch for 8560EC instruments see
NOTE
Line Switch from the Front Panel" on page
Due to possible contact with high voltages, disconnect the
WARNING
spectrum analyzer line-power cord before performing this
procedure.
1. Remove the spectrum analyzer cover assembly as described in
2. Fold out the A2, A3, A4, and A5 assemblies as described in steps 3
3. Disconnect A1A1W1 from A3J602.
4. Place the spectrum analyzer top-side-up on the workbench with A2
The voltage potential at A6A1W3 is +9 kV. Disconnect at the
WARNING
CRT with caution! Failure to properly discharge A6A1W3 may
result in severe electrical shock to personnel and damage to the
instrument.
5. Connect the spectrum analyzer line-power cord to provide proper
6. Connect a high voltage probe (1000:1), such as the HP 34111A, to a
7. Connect the clip lead of the probe (ground) to the chassis of the
8. Slip the tip of the high voltage probe under the A6A1W3
9. Keep the high voltage probe on the post-accelerator connector until
10.Disconnect the line-power cord from the spectrum analyzer.
210
"Procedure 1. Spectrum Analyzer Cover."
through 5 under "Procedure 5. A2, A3, A4, and A5 Assemblies
Removal."
through A5 folded out to the right.
grounding while discharging the A6A1W3 post-accelerator cable.
Make sure that the spectrum analyzer line-power switch is in the off
position.
voltmeter with a 10 megohm input.
spectrum analyzer.
post-accelarator cable rubber shroud to obtain a reading on the
voltmeter. See Figure 3-3 on page
the voltage has dropped to a voltmeter reading of less than 5 mV
(less than 5 V at the connector). This normally takes about 30
seconds.
"Removal of the
153.
162.
Chapter 3