@GGG posted:No full sounds with the basic DCRU. Need the PS-1 bottom board to support full sounds, unless it is the QSI type with 3 boards. MTH did not use that standard. Plus your board looks like a simple whistle board.
DCRUs can be fixed or replaced, but the ERR upgrade will be much better. G
Does that mean no whistle or horn? My board appears to be two boards only.