Brother KE-430HX Service Manual page 11

13-12.
Feed mechanism does not move
and go out of step .......................................... 179
13-13.
Button breakage (BE-438HX/HS) .................. 180
13-14.
Work clamp height is unsuitable
(KE-430HX/HS) .............................................. 180
13-15.
Button clamp height is unsuitable
(BE-438HX/HS) .............................................. 180
13-16.
Thread wiper does not operate correctly ....... 180
13-17.
Lower thread winds to one side, lower
thread winding amount is incorrect ................. 180
13-18.
Operation panel display freeze and
operation is not possible ................................. 181
13-19.
Sewing machine does not operate
when the power is turned on .......................... 181
14. ELECTRIC MECHANISM .................
14-1.
Precautions at the time of adjustment .............. 182
14-2.
Components inside and outside the control box
and in the operation panel ............................... 183
14-3.
Fuse explanation ............................................. 184
14-4.
Connectors ...................................................... 185
14-4-1. Connector positions .................................. 185
14-4-2. Contact failure ........................................... 187
14-5.
Troubleshooting ............................................... 191
14-5-1. Troubleshooting flowchart ......................... 191
14-5-2. Problem solution and measures ................ 196
182
KE-430HX/KE-430HS, BE-438HX/BE-438HS