6/02
2-158
DC1632/2240
9-661
Prelaunch Training/Review
Status Indicator RAPs
9-661 Environment Sensor Humidity
An incorrect value was detected by the Environment Sensor (Humidity).
Procedure
There is +0.4VDC to +17VDC from P/J 536-B3 on the I/F PWB to GND.
YN
There is +5VDC from P/J 536-B4 on the I/F PWB to GND.
YN
Check the wires and connectors. If the check is OK, replace the MCU PWB (PL
13.1).
Check for an open circuit and poor contact if the check is OK replace the Environment
Sensor (PL1.3).
Replace the I/F PWB (PL 9.1). If the problem continues, replace the MCU PWB (PL 13.1).
Figure 1 The Environment Sensor
A
A
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