positioner won't turn off

[dubb]

HI ALL I HAVE A SLIGHT PROBLEM WITH A TECHNOMATE 5400CI SUPER AND A TECHNOMATE 36V POSITIONER THE PROB IS WHEN I TURN THE 5400 TO STANDBY THE POSITIONER WILL NOT TURN OFF AS IT SHOULD DO IN FACT I CAN.T EVEN TURN IT OFF BY THE SWITCH IF I POWER OFF THE 5400 THEN IT GOES OFF BUT THIS IS NO USE AS I HAVE A SKY BOX LOOPED THROUGH THE 5400 AND OF COURSE THIS WILL NOT WORK UNTILL THE POWER IS BACK ON HENCE THE POSITIONER SWITCHES ON AGAIN ? NOT A GREAT WORRY BUT IT WOULD BE NICE TO HAVE IT SWITCHING ON AND OFF WITH THE 5400
ANY IDEAS GUYS?

CHEERS DUBB