4-17.
HP 8340B141B HP-lB OPERATION VERIFICATION TEST (Cont’d)
Procedure
1.
Connect the equipment as shown in Figure 4-22. Enter the program shown in Table 4-32 if the HP
8SF is used, or the program in Table 4-33 if the HP 9826A or 9836A is used. Press the RUN key.
The program will display the DUT’s status bytes similar to Table 4-31. After the program goes
through the output loop routine about two times, all status bits should be “0” and the DUT should
be in LOCAL mode (front panel REMOTE indicator not ON).
2.
Press the
DUT’s
[INSTR PRESET]
key. After going through the output loop about three times,
status byte
1
decimal value should be
24
(bits 4 and 3 set).
NOTE
After pressing an HP 8340B/41B front panel key, watch the displayed
decimal value. When the decimal value changes, press the controller
PAUSE key. Note the status bits that are set and press CONT.
3. Press the DUT’s [CW] key. After the program goes through the output loop about three times all
status bits should be “0”; however, status byte 1, bit 1, should have been set during one of the
output loop passes. Enter [1] [5] [GHz] and the byte 1 status bits will change, but after about 2
passes all status bits should be
“0”.
5. Switch the DUT’s rear panel FREQUENCY REFERENCE switch to EXT. Status byte 2 value
should be 24 (bits 4 and 3 set). Return the switch to INT.
6. Press the controller softkey Ki (SYNTAX).
NOTE
There will be about a 6 second delay before the status bits change.
The program will output the character string “XYZ”to the DUT. The DUT should not recognize
this string and should set status byte 1, bit S (SRQ on HP-lB Syntax Error).
7. Press the controller softkey K4 (DATA BIT). The program will test all data bits and display an error
message if any bits fail the test, or if all bits pass the test, the program will display “ALL DATA
BITS WORKING.”
4-84
Performance Tests
HP
8340B/41B
