Wiper Problems and Solutions - English
Page 1
... tail length set to the right of the wiper and gets hooked by the two pieces of the presser foot and the fabric to better troubleshoot it cut the bobbin thread as well? If the upper thread is still stuck in the upper thread holder. There is also a wiper sensor on...
... tail length set to the right of the wiper and gets hooked by the two pieces of the presser foot and the fabric to better troubleshoot it cut the bobbin thread as well? If the upper thread is still stuck in the upper thread holder. There is also a wiper sensor on...
Service Manual
Page 6
...-3. Machine motor circuit board connectors 118 7-17-3. Keyboard circuit board connectors 120 ■ BAS-412A 120 ■ BAS-401 • 416A • BES-1210AC 121 8. Troubleshooting 122 ■ BAS-412A 122 8-1. DIP switch functions on main printed circuit board 110 ■ BAS-401 • 416A • BES-1210AC 113 7-16-2. Main circuit board connectors 115...
...-3. Machine motor circuit board connectors 118 7-17-3. Keyboard circuit board connectors 120 ■ BAS-412A 120 ■ BAS-401 • 416A • BES-1210AC 121 8. Troubleshooting 122 ■ BAS-412A 122 8-1. DIP switch functions on main printed circuit board 110 ■ BAS-401 • 416A • BES-1210AC 113 7-16-2. Main circuit board connectors 115...
Service Manual
Page 7
... block diagram 158 BES-1210AC Control block diagram 159 BAS-401 • 412A • 416A BES-1210AC Mechanical problem 144 9-2. ■ BAS-401 • 416A • BES-1210AC 133 8-3. Finding cause of problen 144 9-1. Electrical problem 146 10. Troubleshooting flow chart 133 8-3-1. Symbols 133 8-3-2. Troubleshooting flow chart 134 ■ When power is turned ON...
... block diagram 158 BES-1210AC Control block diagram 159 BAS-401 • 412A • 416A BES-1210AC Mechanical problem 144 9-2. ■ BAS-401 • 416A • BES-1210AC 133 8-3. Finding cause of problen 144 9-1. Electrical problem 146 10. Troubleshooting flow chart 133 8-3-1. Symbols 133 8-3-2. Troubleshooting flow chart 134 ■ When power is turned ON...
Service Manual
Page 129
indicates switch operation. indicates turning-off the power switch. Trouble shooting flow chart 8-1-1. indicates setting-up operation. 6. indicates that the procedure to follow appears on the next page. 7. BES-1210AC 122 indicates manual operation. selects the course of action to follow , using a yes-or-no decision-making process. Troubleshooting ■ BAS-412A 8-1. 8. BAS-401 • 412A 416A- Symbols 1. 2. 3. 4. 5. indicates that the procedure to follow appears in the first column of "problem determination and solution table."
indicates switch operation. indicates turning-off the power switch. Trouble shooting flow chart 8-1-1. indicates setting-up operation. 6. indicates that the procedure to follow appears on the next page. 7. BES-1210AC 122 indicates manual operation. selects the course of action to follow , using a yes-or-no decision-making process. Troubleshooting ■ BAS-412A 8-1. 8. BAS-401 • 412A 416A- Symbols 1. 2. 3. 4. 5. indicates that the procedure to follow appears in the first column of "problem determination and solution table."
Service Manual
Page 130
8-1-2. BES-1210AC NO [ENTER] [EDIT) [COMMUNICATE] NO ISTART(sewIng)] #2 are displayed. Troubleshooting flow chart ■ When power is turned ON: ( START ) \ Turn on power. / "Keyboard ROM NG" YES #1 is disp ayed. YES "Missed X(Y) origin point" YES #3 is displayed. YES \ Turn off power. / END 123 BAS-401 • 412A • 416A- NO "Over ravel" YES #4 is displayed. NO "CAUTION MOVINGI" NO #2 is displayed.
8-1-2. BES-1210AC NO [ENTER] [EDIT) [COMMUNICATE] NO ISTART(sewIng)] #2 are displayed. Troubleshooting flow chart ■ When power is turned ON: ( START ) \ Turn on power. / "Keyboard ROM NG" YES #1 is disp ayed. YES "Missed X(Y) origin point" YES #3 is displayed. YES \ Turn off power. / END 123 BAS-401 • 412A • 416A- NO "Over ravel" YES #4 is displayed. NO "CAUTION MOVINGI" NO #2 is displayed.
Service Manual
Page 139
Check if machine is operated in troubleshooting. #15 Embroidery is normal. ® With connector P1 unplugged, measure resistance values of paper tape reader b. PAGE - - b. Check that paper tape is displayed. • ..., check voltage between pins 1 ( +) and 3 (-). IN FLOW CHART AND ERROR STATUS CAUSE CHECK/ADJUSTMENT/REPAIR #14 Thread trimming is turned on . Replace tape reader. - - BAS-401 • 412A • 416A - Improperly adjusted machinery • Main circuit board defective • M is turned on . Check that power is not normal. b. PARTS TO...
Check if machine is operated in troubleshooting. #15 Embroidery is normal. ® With connector P1 unplugged, measure resistance values of paper tape reader b. PAGE - - b. Check that paper tape is displayed. • ..., check voltage between pins 1 ( +) and 3 (-). IN FLOW CHART AND ERROR STATUS CAUSE CHECK/ADJUSTMENT/REPAIR #14 Thread trimming is turned on . Replace tape reader. - - BAS-401 • 412A • 416A - Improperly adjusted machinery • Main circuit board defective • M is turned on . Check that power is not normal. b. PARTS TO...
Service Manual
Page 141
Troubleshooting flow chart • When power is turned ON: ( START ) \ Turn on power. / "Keyboard ROM NG" YES is disp ayed. Error" YES #3 is disp ayed. NO "File No.**" NO #2 is disp eyed. 8-3-2. YES "X_ (Y_) ORG. NO "Over ravel" YES #4 is disp ayed. YES \ Turn off power. / END BAS-401 • 412A• 416A • BES-1210AC 134 NO "CAUTION MOVINGI " NO #2 is disp ayed.
Troubleshooting flow chart • When power is turned ON: ( START ) \ Turn on power. / "Keyboard ROM NG" YES is disp ayed. Error" YES #3 is disp ayed. NO "File No.**" NO #2 is disp eyed. 8-3-2. YES "X_ (Y_) ORG. NO "Over ravel" YES #4 is disp ayed. YES \ Turn off power. / END BAS-401 • 412A• 416A • BES-1210AC 134 NO "CAUTION MOVINGI " NO #2 is disp ayed.
Service Manual
Page 150
... Editing system defective • Main circuit board defective C) Check that RS cable is distorted. #16 Errors relative to item #10. 143 BAS-401 - 412A • 416A - Replace main circuit board. Main circuit board .. - Replace paper tape reader. Check that power isturned... Check that paper tape is correctly connected and proper continuity tested for . Main circuit board #17 "Tape read Error" is operated in troubleshooting. Replace main circuit board. a. c. b. c. Readjust machinery. If it is + 60V, it is not normal. NO. Dirty head...
... Editing system defective • Main circuit board defective C) Check that RS cable is distorted. #16 Errors relative to item #10. 143 BAS-401 - 412A • 416A - Replace main circuit board. Main circuit board .. - Replace paper tape reader. Check that power isturned... Check that paper tape is correctly connected and proper continuity tested for . Main circuit board #17 "Tape read Error" is operated in troubleshooting. Replace main circuit board. a. c. b. c. Readjust machinery. If it is + 60V, it is not normal. NO. Dirty head...