EDAN F15 Series - Verifying Malfunction of the IM X12 Parameter Board

F15 Series Fetal & Maternal Monitor Service Manual Modules’ Malfunction Verification
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8.2 Verifying Malfunction of the iM X12 Parameter board
To verify the iM X12 parameter board,
1) Open the main unit using the procedures described in section 9.3.
2) Switch on the monitor. (Powered by AC or battery.)
3) Measure the voltage to earth of the pins listed below, using a multimeter:
Item
Reference Pin
Test Pin
Reference Result
○
1
R223.2(FGND2)
TP15
+4.9V±5%
○
2
R223.2 (FGND2)
TP16
-6.4V±5%
○
3
R223.2 (FGND2)
TP17
+6.4V±5%