Specifications

The test will not immediately stop when Stop is selected; it will continue until the current
iteration of the disk test is completed and then stop.
7
Disconnect the disk drive cables. Re-install the hard disk drive onto the disk drive
assembly, and then re-install the disk drive assembly in the logic analyzer.
8 Reconnect the disk drive cables and install the cover on the logic analyzer.
To perform the BNC test
Equipment Required
Equipment Critical Specification Recommended
Model/Part
Digitizing Oscilloscope 100 MHz Bandwidth HP 54600B
BNC Shorting Cap 1250-0074
BNC Cable HP 10503A
BNC-Banana Adapter 1251-2277
1 Press the Config key.
2 Assign pods 1 and 2 to Machine 1.
To assign the pod field, select the pods 1 and 2 field, then select Machine 1 in the pop-up
menu.
3
In the Analyzer 1 box, select the Type field. Select Timing in the pop-up menu.
4 Set up the trigger menu.
a Press the Trig key. Select Clear Trigger All.
b Select Arming Control. In the Arming Control pop-up menu, select the field labeled
Run, then select Port In. Press the Done key.
5
Attach a BNC shorting cap to the External Trigger Input on the rear panel of the
logic analyzer.
6 Using a BNC cable, connect the External Trigger Output to the oscilloscope
channel 1 input. Set the oscilloscope to Trigger On and measure TTL voltage levels.
7 Press the RUN front panel key.
The warning "MACHINE 1 Waiting on level 1" will appear.
8
Remove the shorting cap from the rear panel External Trigger input BNC.
9 The warning will go away and the oscilloscope will display a positive-going TTL
pulse.
Troubleshooting
To perform the BNC test
5–31