Agilent Technologies 42A Spezifikationen PDF herunterladen (Seite 142)

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Chapter 6: Replacing Assemblies

To replace the circuit board

1 Remove the three screws connecting the probe cables to the back panel,

then disconnect the probe cables.

2 Remove the four screws attaching the ground spring and back panel to the

circuit board, then remove the back panel and the ground spring.

3 Replace the faulty circuit board with a new circuit board. On the faulty

board, make sure the 20-pin ribbon cable is connected between J3 and J6.

4 Position the ground spring and back panel on the back edge of the

replacement circuit board. Install four screws to connect the back panel

and ground spring to the circuit board.

5 Connect the probe cables, then install three screws to connect the cables

to the back panel.

CAUTION: If you over tighten the screws, the threaded inserts on the back panel might break off of

the back panel. Tighten the screws only enough to hold the cable in place.

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Agilent Technologies 42A Spezifikationen Seite 142