I tried to replicate your problems here without success. Please try the following:
Assuming that the pairs of wire to the start are good with reasonable resistance. The note about the drop in volume makes me suspect high resistance. The S3 will operate at up to 600 ohms of line resistance. Far greater than the TAG 705 can tolerate.
1) Plug the ALGE headset into the ALGE start gate
2) Connect the Red and black pair of banana plugs (backup) to the backup pair of wires and into the ALGE S3 timer start inputs (backup) You should be able to talk just fine on this pair of cables. If not then check the start gate and the S3 right together at the finish. If you still cannot talk, there may be a problem with the S3. Try another ALGE timer or Sv4 (sv3) amplifier.
3) Plug the TAG 705 into the Green and Black pair of banana plugs (primary) You should now get solid pulses on both the S3 and the TAG 705. If the TAG fails, reverse the polarity of the pair connected to it.
You could also run the TAG 705 by itself and use the ALGE headsets
1) You must use an ALGE timer or Sv4 (sv3) amplifier with the TAG 705 in parallel. In other words the signal going into the timer must be split ("y". One leg (pair) into the timer, one leg (paralleled pair) into the amp. If the timer fails, reverse polarity.
2) Everything must be on prior to testing
Originally posted 23 Jan 2001 by Fred Patton