Olympic 50 - Page 9

cell movement such as wires or mechanical binding.
- Take measurements with respect to signal ground, TP10.
Troubleshoot the Scale using the test points on the Main
Board. The test points are in numerical order from left
to right on the front of the Main Board. Their function is
summarized in the table, Fig. 4-10.
- Operate Scale both on batteries and AC to see ifsymptom
is the same.
Dissasembly
1. Turn off the Scale and unplug from the wall outlet.
2. Slide one end of the Scale so it overhangs the table (Fig.
4-4).
3. Unscrew the four socket head cap screws through the
holes in the chassis (Fig. 4-5). Repeat for the other end.
4. Lift the platform assembly up to expose the weighing
platform (Fig. 4-6).
Note: The platform assembly, with its hinged ends, is not
field repairable and should not be disassembled. If it is
damaged it should be returned to Olympic Medical for
repair or replacement.
The Main Board test points are now exposed (Fig. 4-7).
Removing Weighing Platform
It is not necessary to remove the weighing platform unless
the main printed circuit board must be removed.
1. Remove the two socket head cap screws and the two flat
head cap screws (Fig. 4-8).
2. Lift the weighing platform off. Take care not to lose the
spacer (Fig. 4-9).
Removing Main Board
1. Disconnect all connectors: Transformer, Load Cells,
Battery and Display Board.
2. Remove the mounting screws holding the board in
.place.
3. To replace the board reverse the above steps.
Reassembly
Reassemble the Smart Scale by reversing the dissassembly
steps.
When installing weighing platform, the two socket head
cap screws (Fig. 4-8) require 90 in-ib torque. The two flat
head cap screws need only to be tight.
Fig. 4-5 Cap Screws
Fig. 4-6 Removing Platform
Page 4-3
Fig. 4-7 Test Points On Main Board
SS50-N1-220V(B09)