HP 5890 Series II Plus Reference Manual page 96

Signal Output
File compatibility with data handling devices
Figure 5-16
P2
Finding component P15 on the Main PC Board.
4. Set the jumper (Part No. 1258•0141)for the proper mode. To avoid
electrostatic damage to the main board, ground yourself to the GC
chassis with an ESD strap, or touch an unpainted area of the oven
such as the door hinge.
Figure 5-17
Setting the jumper.
96
P3
P13
Main PC Board
HP 5890A mode
P6
P5
P12
HP 5890 SERIES II mode
P15