YSI Incorporated
Model 5000/5100 Service Manual
25
SECTION 11 DISASSEMBLY/ASSEMBLY
PROCEDURES
Place the instrument face down on a
padded surface for all procedures below.
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.
•
Gently lay the lower case assembly to the
side being careful not to put strain on the
battery wires.
PC BOARD REMOVAL
•
Gently release the two snaps nearest
the front, curved edge of the unit.
•
Release the two side snaps nearest the front, then the other two side snaps.
•
With the snaps released, lift the front of the board slightly and slide the board out of the rear
connector openings. The seven rubber switch extenders may come loose from the board. Be careful
not to lose them.
PC BOARD RE-INSTALLATION
•
Remove the protective covering from the display.
DO NOT TOUCH THE FACE OF THE
DISPLAY, YOUR FINGERPRINTS CANNOT BE EASILY REMOVED.
•
Slip the connector end of the board into place against the gasket 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 go
through the holes in the case as they should.
•
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
•
Plug the connector from the battery holder in the lower case assembly into the mating connector on
the PC board.
•
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
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