Table 4-7. GPIB Board S.A. Test No. 2
Description: This test checks the ROM (U206) and the data bus to the output of the Data Latches (U217) in the system
microcomputer.
Test Setup: Use the test setup described in paragraph 4-23. Connect jumper pack W202 in the NOP and set up the
signature analyzer as shown below.
Signature Analyzer
Input
Edge
Setting
P201 PIN
Connection
START
STOP
CLOCK
GND
9
10
14
4
Measurements: Use the data probe to take signatures for each circuit at the output pins listed below. These signatures
apply to the firmware revsions listed. Refer to Appendix A for previous versions.
Date code --> 2629 2839
Revision #--> A.00.02 A.00.03
Circuit Output
Signatures
+5 P201-1
0001 0001
U206-11
AH2C UF2F
U206-12
13CC 9650
U206-13
PUCC 4134
ROM U206 U206-15
C2A3 164A
Data Bus Lines U206-16
HU49 3449
U206-17
PF79 A11F
U206-18
3856 H930
U206-19
AHU7 A791
U217-2
H694 UP17
U217-5
09HF 4C29
System Microcomputer U217-6
77HF A09C
Data Latches U217-9
H950 8C24
U217 U217-12
6UA5 9A25
U217-15
U63H 508U
U217-16
1F2A 6F99
U217-19
H6UA 53F9
4-21
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