Graeme,
I replied to your email on May 30th. Perhaps it is in your spam folder. What I said was:
The new soundcard has no pots and is adjusted and sounds are optionally triggered by the remote control. This is for two reasons. First we have several more sounds like a brake pump, a guard’s whistle or “All aboard” and a safety valve blow off. To control these with pots would have needed about twelve pots which would have put up both the price and the size of the soundcard. Secondly the remote control means that you can mount the soundcard inside the loco yet be able to make adjustments without having to take the loco apart.
Only one remote control is needed for any number of soundcards and they cost only $10 each. If you already have a Sony TV remote control, you can use that,
Please post the diesel soundcard to me at the address below for checking. If the problem is a corrupted memory then I may be able to re-program it and send it back with only a small post and handling charge. If a component is blown then it will probably not be repairable but we might be able to replace it with a refurbished one.
Regards
Peter Lucas
MyLocoSound
PO Box 2033
Magill North
SA 5072