Table of Contents
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7. SWITCHES INSIDE THE PANEL BOX AND THE CONTROL BOX ........................... 42
(1) Inside the panel box ............................................................................................................................ 42
(2) Inside the control box .......................................................................................................................... 42
8. ADJUSTMENT OF UNIT .............................................................................................. 46
(1) Carriage unit ........................................................................................................................................ 46
(2) Button feeder components .................................................................................................................. 56
(3) Detecting mechanism and its adjustment ........................................................................................... 63
(4) Replacing the components and positioning them ............................................................................... 66
9. MAINTENANCE INSPECTION ..................................................................................... 69
(1) Maintenance and inspection of the sewing machine components ...................................................... 69
(2) Maintenance and inspection of electrical components ........................................................................ 69
(3) Diagnostic feature ............................................................................................................................... 69
10. PERFORMANCE FLOW CHART ............................................................................... 75
11. SEQUEMCE CHART .................................................................................................. 83
12. AIR PIPING ................................................................................................................. 85
13. WIRING COMPONENTS ............................................................................................ 87
14. CONFIGURATION (ELECTRICAL UNIT) .................................................................. 89
(1) Components of control box and its function ........................................................................................ 89
(2) Connector and its functions of the control box .................................................................................... 90
(3) Power voltage ..................................................................................................................................... 91
(4) Measuring the DC power voltage ........................................................................................................ 92
(5) Changing the thermal values inside the switch box ............................................................................ 93
(6) Replacing fuses ................................................................................................................................... 93
(7) Replacing the P-ROMs for data .......................................................................................................... 94
(8) CPU circuit board ................................................................................................................................ 95
(9) I/O circuit board ................................................................................................................................... 96
(10) Power circuit board ........................................................................................................................... 97
(11) Panel circuit board ............................................................................................................................ 98
(12) Functions of the stepping motor driver .............................................................................................. 98
(13) I/F circuit board whole asm. .............................................................................................................. 99
15. BLOCK DIAGRAM ................................................................................................... 100
16. BLOCK DIAGRAM ................................................................................................... 101
17. WIRING DIAGRAM................................................................................................... 102
18. CIRCUIT DIAGRAM ................................................................................................. 105
(1) Transformer (ass'y) ........................................................................................................................... 105
(2) Power circuit board (ass'y) circuit diagram ....................................................................................... 106
(3) Circuit diagram of the stepping motor driver (ass'y) .......................................................................... 107
(4) Circuit diagram of the stepping motor (ass'y) .................................................................................... 107
(5) Circuit diagram of the indexer switch ................................................................................................ 108
(6) Output circuit board diaram ............................................................................................................... 109
19. TROUBLES AND CORRECTIVE MEASURES ........................................................ 111
20. TROUBLES AND CORRECTIVE MEASUTRES ..................................................... 112
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