Philips M1353A, M1351A manual 12Toco Transducer Cable Connections, Pin Cable Color Strain

Toco Transducer (Brown)

Table 11-12Toco Transducer Cable Connections

Pin	Cable Color		Strain
			Gauge
2	Yellow		2
3	Green		4
4	Blue		1
8	Orange		3
1+6	Bridged by Code Resistor 4.53kΩ	p/n: 0698-4443
1	Shield

Caution

DO NOT use a screwdriver or similar flat-bladed instrument to separate the transducer covers as this can damage the seals and cause leakage when the transducer is re-assembled. Take care when removing the wires as they are thin and can easily be damaged. NEVER pull the strain gauge button.

1.Disconnect the transducer from the monitor.

2.Remove screw covers 1 and 2: press a flat screwdriver into the covers and prise them out.

Note— When reassembling the transducer, you will need new screw covers as the old ones cannot be re-used.

3.Partially undo screws 3. The two halves of the transducer can now be separated by pressing down on the screws.

4.Remove the screws 3 and pull the two halves of the cover apart.

5.Disconnect the transducer cable from the strain gauge 4: use a soldering iron to separate the three cable wires from the gauge.

6.Cut the clips holding the strain gauge and remove it.

Re-assembly is a reversal of the above procedure. The strain gauge assembly is a press fit into the transducer cover.

Note— Older Brown transducers can be repaired but Blue Toco transducers are sealed units and are only factory repairable.

132 Chapter 11 Replacing Parts