Common issue faced by the Transducers :

1.	Low Gain User can see the image but it appears on low resolution.
2	Air Gap In mechanical probes, air gap seems to occur due oil insufficiency. It gives moving shadows. Electronic probes shows some bulbous on the layer and gives a black shadow.
3	Black Shadow Black shadows are seen on the image at few areas on the totally covered image.
4	Cracks Image and layer are good except some cracks on the case.
5	Ghost Imaging Some images may be missing or overlapping

REASONS AND SOLUTIONS

1.	Low gain may due to the crystal is getting used and its life is over; In this case replacing crystals may not recommended, better go for a new probe.
2	Air Gap: In mechanical probes air gaps can be removed by refilling the oil. In electronic probes, bulbous air gaps can be removed by replacing the transducer membrane. Screw driver can use for this.
3	Black shadows: Black shadows may due to air gaps as described above or crystal elements dead or due to cable cut. Air gap problem can be serviced as described above. Crystal elements dead means better go for total replacement. Cable cut can be solved by replacing cables or can be getting serviced by qualified service personnel. Some companies they are supplying transducer cables are (3 sites)
4	Cracks: It may caused due to high temperature. Use of A/C will reduce the chance. Cracks on the case can be removed by replacing case or by side fillings. Cracked cables can be replaced with new cables.
5	Ghost imaging is caused due to internal PCB problem. PCB’s with built-in transducers may likely to have ghost imaging. PCB’s can be serviced.

REPAIRING OF MECHANICAL PROBES:

It includes:

 1.  Dome replacement
 2.  Oil filling
 3 . Motor assembly alignment calibration
 4.  Motor assembly replacement