YSI 3100 - Manual (Page 36)

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8.3 Disassembly/Assembly Procedures
NOTE: The following procedure should
only be performed by a qualified service
technician.
Case Disassembly
•
While applying slight separation force
to the front, curved edge of the case near
one corner, use a small straight-blade
screwdriver to release the snap (A) on
the same side.
•
When that snap releases, keep applying
the separation force, and use the
screwdriver to release the front snap (B)
nearest the same corner.
•
Repeat the procedure on the other
corner to release both front and both
side snaps.
•
Swing the case open slowly, pivoting on
the three rear snaps (C) until they
release.
•
Lay the lower case assembly to the side.
PC Board Removal
•
Gently release the two snaps nearest the front, curved edge of the unit.
•
With the snaps released, lift the front of the board slightly and slide the board out of the rear
connector openings.
PC Board Re-installation
•
Remove the protective covering from the display. DO NOT TOUCH THE FACE OF THE
DISPLAY, FINGERPRINTS CANNOT BE EASILY REMOVED.
•
Slip the connector end of the board into place against the gaskets at the rear of the case, then
rotate the board down into position, engaging each snap as you go. Be sure that the switch
extenders line up with the switches.
•
Inspect the assembly to insure that all board snaps are fully engaged and the board is in the
proper position in the case. Turn the assembly over and activate each switch. Be sure you can
hear and feel each switch click as it is pressed.
Case Re-assembly
•
Hook the three snaps at the rear of the case into place and rotate the lower case into place on
the upper case. Make sure all four snaps are fully engaged. Press firmly down on the three
rear snaps to make sure they are completely engaged.
A
B
C