F9 Fetal & maternal Monitor Service Manual Modules’ Malfunction Verification
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3) Compare the measurement results with the reference results in the list. If all the results are in
the allowance range. Switch on the monitor and measure the voltage to earth of the pins
listed below.
Item Pin Reference result
○
10 TP3 (0.45±20% )V
○
11 TP9 (0.9±20% )V
○
12 TP8 (0.9±20% )V
○
13 TP2 (0.45±20% )V
○
14 TP13 (3.30±20% )V
○
15 TP11 (3.30±20% )V
○
16 TP4 (0.40±20% )V
4) If any one of the results exceeds the reference range, the FM module defection is confirmed.
Replacement of the module is recommended.
○
14 TP13
○
15 TP11
○
16 TP4
○
10 TP3
○
11 TP9
○
12 TP8
○
13 TP2