3
104 73 15-26
Main Circuit board - Circuit diagram Ambition 1.0 and1.5 .......................................................................... 49
LCD Circuit board - Circuit diagram............................................................................................................ 50
Main Circuit board - Circuit diagram Ambition essential ............................................................................. 51
Power supply .............................................................................................................................................. 52
Fault fi nding Ambition 1.0 - 1.5 ................................................................................................................... 53
No operation of the machine ...................................................................................................................... 53
No operation sewing machine. ................................................................................................................... 53
LCD (Touch panel) no display .................................................................................................................... 53
No operation/function of the pushbutton..................................................................................................... 53
No operation DC motor............................................................................................................................... 53
No operation Start/ Stop, Reverse/ Autolock, LED light ............................................................................. 53
Speed adjustment no operation.................................................................................................................. 54
No operation of the Zig-zag step motor ...................................................................................................... 54
No operation of feed stepper motor ............................................................................................................ 54
The bobbin winder spindle is in ”off” position, ............................................................................................ 54
No operation of BH ..................................................................................................................................... 54
No operation of Foot controller ................................................................................................................... 55
No function of LED lamp............................................................................................................................. 55
Fault fi nding Ambition essential .................................................................................................................. 56
No operation of the machine ...................................................................................................................... 56
No operation sewing machine. ................................................................................................................... 56
LCD no display ........................................................................................................................................... 56
No operation/function of the pushbutton..................................................................................................... 56
No operation DC motor............................................................................................................................... 57
No operation Needle position, reverse ...................................................................................................... 57
No operation of the Zig-zag step motor ...................................................................................................... 58
No operation of feed stepper motor ............................................................................................................ 58
The bobbin winder spindle is in ”off” position, ............................................................................................ 58
No operation of BH ..................................................................................................................................... 59
No operation of Foot controller ................................................................................................................... 59
No function of LED lamp............................................................................................................................. 59