Product

Symptoms

Intermittent downtime due to faulty bar flag connections.

Cause

Solution

Check the  crimp connections on the bar flag connections of the bar flag harness (p/n 203G10012). Then, check that the detector is functioning properly:

1. In the Registry, make sure the following default parameters are set:

• IO OBJECTS\LOCAL 3\DETECTORS\Bar Flag 1 Detector\Detector Active State = 1
• IO OBJECTS\LOCAL 3\DETECTORS\Bar Flag 1 Detector\Detector Number = 42

2. Using a volt meter, find a 5V supply to the sensor while the sensor is connected by measuring between pins 1 (5V) and 2 (GND) on the connector. In case the 5V pin and the right local board are live, follow the wires from the sensor to the local board (loading harness p/n 504N3D512).
3. If the 5V pin supply is sufficient, measure the voltage between pins 2 (GND) and 3 (Output). When the sensor is not blocked, V= ~0; when it is blocked, V= ~5.4V. If this is the case, the wiring, sensor and voltage are functioning properly.
4. When the measured result is other than 5V or 5.4V:
   1. Disconnect the sensor.
   2. Measure between pins 1 and 2 (harness connector) to find the 5V supply.
   3. Measure between pins 2 and 3 (harness connector) to find the 5.4V supply.
   4. If the pins are not receiving either the 5V supply or the 5.4V supply, check the wiring, the board connections, and the connection between the local board and the mother board.
   5. If both the 5V supply and the 5.4V supply are sufficient, short the voltage between pins 2 and 3. A change on the screen indicates that everything but the sensor is operating properly.

Technical contact(s)

Itai Peperovich

Submitted by

Itai Peperovich

Date submitted

27 Mar 2003