Agilent Technologies 6622A Service Manual page 69

Description: This test checks the GPIB Talker/Listener chip (U202) bidirectional data bus lines.
Test Setup: Use the test setup described in paragraph 4-23. Connect jumper pack W202 in the normal operating
position and set up the signature analyzer as shown below.
Signature Analyzer
Input
START
STOP
CLOCK
GND
Measurements: Use the data probe to take signatures for each circuit at the input/output pins listed below.
Circuit
+5
GPIB
Talker/Listener
U202
(Bidirectional Bus)
Table 4-10. GPIB Board S.A. Test No. 5
Edge
Setting
Input/Output
P201-1
U202-12
U202-13
U202-14
U202-15
U202-16
U202-17
U202-18
U202-19
4-24
P201 PIN
Connection
11
12
15
4
Signature
7U39
60U7
183H
060U
0183
0060
0018
0000
0006