2.
Connect an open (or short) to port 1 and port 2.
3.
Press [User
1 al], [User
2
[User
3
and
[User
4
bl]
to check the channels indicated.
The b, and traces should resemble Figure 3-3. The a, and traces should resemble Figure 3-4.
Figure 3-3.
Typical Operator’s
Check CRT Power Level Trace
4.
Connect a thru (two test port return cables) from port 1 to port 2.
5. Press PARAMETER
[MENU] [USER 4 bl] [REDEFINE PARAMETER] [DRIVE] [PORT
[PHASELOCK]
[REDEFINE DONE]
to observe the bl thru power level trace. The trace should
resemble Figure 3-4.
6. Leave the thru connection of step 4 connected. Press PARAMETER
[MENU] [USER 2
[REDEFINE PARAMETER] [DRIVE] [PORT [PHASELOCK] [al] [REDEFINE DONE]
to observe
the b2 power level trace. The trace should resemble Figure 3-4.
Make sure that you redefine the parameters to the original conditions for al, bl, a2, and b2.
7.
If any of the traces are not within the specified limits, check all of the connections and repeat the
above procedure. If symptoms persist, refer to the Service Overview section of the
Service Manual
or volume 4 of the HP 8510A manual set.
HP
Test
Operation
3-5