Recommended Test Equipment - HP 5004A Operating And Service Manual

Signature analyzer

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Table of Contents

intended for signature analysis troubleshooting will have a programmed controller and a stored

short test program that can exercise most of the unit. Usually the test program is started by a

"self-test" mode of the instrument. With the test program running, the 5004A (connected to

the unit being tested) will display a unique hexadecimal signature for each signature analysis

test point in the unit being tested. The 5004A requires four signals from the unit being tested:

Clock, Start, Data, and Stop. The CLOCK signal synchronizes the two instruments. The exactly

repetitive START and STOP signals define a window during which the DATA signal is being re-

ceived by the 5004A. After the STOP signal the 5004A displays the unique hexadecimal signa-

ture of the data received.

ACCESSORIES SUPPI-IED

1-19.

1-20. The accessories supplied with the 5004A are shown in Figure 7-7.

Depending on the customer's location, the line power cable may be supplied with one

of four line (mains) connectors. Refer to the "Power Cable" paragraph in Section

Five detachable "grabber" test connectors are supplied with the 5004A. Refer to Sec-

tion

for a description and use.

One ground wire for the data probe i s supplied with the 5004A.