5. Memory switches .................................................................................................. 52
(1) Memory switch start and change .......................................................................................... 52
(2) Table of memory switch functions ........................................................................................ 53
6. Test mode .............................................................................................................. 57
(1) Test mode start........................................................................................................................ 57
(2) Display output test .................................................................................................................. 58
(3) Method of confirmation according to each test program No. ............................................ 59
7. Miscellaneous ........................................................................................................ 64
(1) Various printed wiring boards ............................................................................................... 64
(2) LK1900 data ROM .................................................................................................................... 71
(3) Dipswitch setting .................................................................................................................... 71
(4) Table of standard pattern specifications .............................................................................. 72
(5) Table of standard patterns ..................................................................................................... 73
8. Optional features ................................................................................................... 75
(1) Connection of PK-57 ............................................................................................................... 75
(2) Table of optional parts ............................................................................................................ 76
(3) Table of the work clamp foot .................................................................................................. 78
9. Maintenance .......................................................................................................... 80
(1) Replacing the fuse .................................................................................................................. 80
(2) 100V
↔
↔
↔
↔
↔
200V voltage specification changeover .................................................................. 80
(3) Greasing parts ......................................................................................................................... 81
(4) Parts to which grease is applied ........................................................................................... 82
(5) Grease-up procedures for the specified position ................................................................ 89
10. Table of errors ..................................................................................................... 90
11. Troubles and corrective measures .................................................................... 93
(1) Mechanical parts ..................................................................................................................... 93
(2) Sewing conditions .................................................................................................................. 95
(3) Electrical components .......................................................................................................... 103
12. Circuit diagrams .................................................................................................111
(1) Block diagram A ..................................................................................................................... 111
(2) Power supply circuit diagram A ........................................................................................... 112
(3) Power supply circuit diagram B .......................................................................................... 113
(4) Power supply circuit diagram C .......................................................................................... 114
(5) Servo motor circuit diagram ................................................................................................ 115
(6) Sensor – pedal VR circuit diagram ...................................................................................... 116
(7) MAIN • PANEL board circuit diagram .................................................................................. 117
(8) Motor • solenoid circuit diagram ......................................................................................... 118
13. Table drawings .................................................................................................. 119
(1) Table type for longitudinal Installation ............................................................................... 119
(2) Table type for lateral Installation ......................................................................................... 120
Summary of Contents for LK-1900A
Page 20: ... 16 10 Hook adjustment Standard Adjustment 0mm 0mm 7 5mm 0 05 0 1mm For DPX5 For DPX17 ...
Page 90: ... 86 Grease Grease Grease Grease Grease 8 Needle thread clamp mechanism area ...
Page 91: ... 87 Grease Grease A Grease Grease Grease Grease 9 LK 1901A relations ...
Page 92: ... 88 10 LK 1903A relations Grease Grease ...
Page 114: ... 111 12 Circuit diagrams 1 Block diagram A ...
Page 115: ... 112 2 Power supply circuit diagram A ...
Page 116: ... 113 3 Power supply circuit diagram B ...
Page 117: ... 114 4 Power supply circuit diagram C ...
Page 118: ... 115 5 Servo motor circuit diagram ...
Page 119: ... 116 6 Sensor pedal VR circuit diagram ...
Page 120: ... 117 7 MAIN PANEL board circuit diagram ...
Page 121: ... 118 8 Motor solenoid circuit diagram Thread trimmer Lifting the work clamp foot motor ...