EDAN F15 Series - Verifying Malfunction of Lower Case Interface Board

F15 Series Fetal & Maternal Monitor Service Manual Modules’ Malfunction Verification
- 43 -
4) If any one of the results exceeds the reference range, the iM X12 parameter board defection
is confirmed. Replacement of the iM X12 parameter board is recommended.
8.3 Verifying Malfunction of Lower Case Interface Board
To verify the lower case interface 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
Test Pin
Reference Result
Remark
○
1
TP32
4.75~5.25V
○
2
TP31
11.40-12.60V
○
3
TP16
3.14-3.46V
○
4
TP18
4.75~5.25V
○
5
TP52
4.75~5.25V
○
6
TP1
3.14-3.46V
Test only when connected with
485 module
TP15
TP16
TP17