Agilent Technologies HP 8719D Service Manual page 274

External Tests
These tests require either external equipment and connections or operator
interaction of some kind to run. Tests 30 and 60 are comprehensive front panel
checks, more complete than test 12, that checks the front panel keys and knob
entry.
Op Port 1
21
Chapter 4, "Start Troubleshooting Here." The procedure requires the
external connection of a short to PORT 1.
22
Op Port
Ck
23 Seq.
keys, as well as the front panel microprocessor on the A2 assembly. It
prompts the user to rotate the front panel knob, then press each key
in an ordered sequence. It continues to the next prompt only if the
current prompt is correctly satisfied.
24 Diag. Similar
knob or presses the keys in any order. This test displays the command
the instrument received.
25 ADC Hist. Factory
Part of the "Operator's Check" procedure, located in
2 Same as 21, but tests PORT 2.
Tests the front panel knob entry and all Al front panel
to 23 above, but the user rotates the front panel
use only.
Service Key Menus and Error Messages
1 O-1 5