FTS-3 Fetal Telemetry System Service Manual
Modules
’ Malfunction Verification
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4)
Compare the measurement results with the reference results in the list. If any one of the
results exceeds the reference range, the main board defection is confirmed. Replacement of
the main board is recommended.
9.2 Verifying Malfunction of the Power module
To verify the power module,
1)
Open the base station using the procedures described in section 10.3.
2)
Measure the voltage to earth of the following pin on the bottom interface board, using a
multimeter.
Item
Pin
Reference result
○
1
5
th
pin of J3
(+12±10%) V
Figure 9- 2
Power module
3)
If any one of the results exceeds the reference range, the power module defection is
confirmed. Replacement of the module is recommended.
①
5
th
pin of J3
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