HP 5890 SERIES II Service Manual page 52

When removing a connector from a receptacle, pull on the connector not on its wires.
Pulling on the wires may cause breakage.
19. Disconnect connector P8 from its associated connector on the main PCB by pulling it straight
out.
20. The solenoid valve leads are connected to ei-
ther the VLVA or VLVB outputs of connector P8.
Use the lance release tip of an AMP pin extrac-
tion/lance reset tool (8710- 1542) to remove the
appropriate pins from connector P8. (The tool
features a lance release tip and a lance reset
tip. The lance release tip is used to depress
the pin locking lance to extract the pin from a
connector. The lance reset tip positions a lock-
ing lance to its proper height to ensure reten-
tion of the pin in the connector.)
LANCE
RELEASE
TIP
LOCKING
LANCE
CAVITY
BACK OF
HOUSING
21. Prepare the pins corresponding to the replace-
ment sensor cartridges by adjusting their lock-
ing lances using the lance reset portion of the
tool.
22. Insert the pins for the replacement sensor into
their appropriate locations in the plug, making
sure the locking lance on each pin seats into its
hole through the side of the plug.
LOCKING
LANCE
CAVITY
BACK OF
HOUSING
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TOOL STOP
INSERT TIP
HERE
(BACK OF
CAVITY)
CONTACT
(TYPICAL)
LOCKING
LANCE
CONTACT
(TYPICAL)
SVC 3- 9
EXTRACTION
LANCE RESET
TOOL
DASH NUMBER
LANCE
MARKED HERE
RESET TIP
LANCE
RESET
TIP
RECEPTACLE
BOX (TYPICAL)
TOOL
STOP
LANCE
RELEASE
TIP
TAPER
LOCKING
LANCE