One of the timing units does not power up.

One of the timing units beeps seven times quickly after powering on.

The TS-T175 turns on but does not beep when touchpad is pessed and released, or there is a delay after it has been released.

The IRD-175 will not stop beeping or clackling (does not "see" the IRE).

The hand held clock CML5MEM display is hard to read.

One of the units will not start or stop the hand held clock or display.

One or more of the sending units is not signaling the clock from full distance.

The athletes times using the system are slower than their times using a stopwatch.

The USB Interface is not working properly.

Tripod is broken.