Janome MC15000 Service Manual Download Page 13 | Manualshive

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Janome MC15000 Service Manual Download Page 13

11

Bobbin thread sensor
potentiometer

Needle plate sensor switch

Printed circuit board A relay
(18-pin)

Feed motor

Printed circuit board A relay
(14-pin)

Bobbin thread sensor motor

Drop feed motor

Printed circuit board A relay
carriage

Relay (carriage)

Thread cutter motor

Replacing electronic components

Printed circuit board U2

NOTE:
Do not disconnect the connectors by pulling on cord.
To disconnect the connectors, grasp the connector, not the
cord.

To remove:
1.  Remove the base plate (see page 2).
2.  Remove the setscrew (A). Disconnect the connectors.
3.  Disconnect the connectors and setscrews (B).

Remove the printed circuit board U2.

To attach:
1. Follow the above procedure in reverse.

Setscrew (A)

Cord binder

Setscrews (B) (3 pcs.)

Printed circuit board U2

Circuit board U2 connection

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Summary of Contents for MC15000

Page 1: ...MC15000 Ver 2 0 SERVICE MANUAL...

Page 2: ...hook 22 23 Backlash between hook drive gear and lower shaft gear 24 Upper shield plate position 25 Upper thread tension 26 Tension release mechanism 27 Needle threader holder threader hook replacemen...

Page 3: ...crews A 2 pcs Remove the face plate To attach 1 Follow the above procedure in reverse Belt cover To remove 1 Remove the caps 2 Remove the setscrews A and B Connector Face cover Cap s A C B D 3 Loosen...

Page 4: ...g handle Remove the setscrew C 4 Detach the top cover for the machine Be careful that the connector for the bobbin winding motor is still connected Disconnect the connector from the machine Remove the...

Page 5: ...s 3 A A A B B Base cover To remove 1 Remove the extension table Remove the setscrews A 4 pcs Remove the setscrews B 3 pcs Remove the base cover To attach 1 Follow the above procedure in reverse Base p...

Page 6: ...eedle and presser foot holder 2 Push down the needle plate release lever Remove the needle plate 3 Remove the bed cover see page 3 4 Remove the setscrew A and pin B B A To attach 1 Latch the hooks thr...

Page 7: ...e the belt cover and top cover see page 1 and 2 2 Loosen the setscrew A B C D E and F 3 Press down the rear cover through the holes G and H with a screwdriver to unlatch the front cover 4 Remove the f...

Page 8: ...base cover see page 1 2 and 3 2 Open the face plate and disconnect the connector 3 Loosen the setscrews A and B 4 Remove the setscrews C 2 pcs and D 2 pcs C D E 5 Press down the rear cover through th...

Page 9: ...ect the connectors Remove the setscrews A 4 pcs and printed circuit board A To attach 1 Follow the above procedure in reverse After replacing the printed circuit board A adjust the following parts Kne...

Page 10: ...e b An initialization according to the previously stored setting value In case of procedure b it may require 20 seconds maximum to perform the initialization Exit the wireless LAN setup menu Be sure t...

Page 11: ...s 2 pcs Nut 2 Remove the module from the printed circuit board A 3 Flip the module and remove the spacers 2 pcs and setscrews 2 pcs To attach 1 Follow the above procedure in reverse Attach the communi...

Page 12: ...U1 NOTE Do not disconnect the connectors by pulling on cord To disconnect the connectors grasp the connector not the cord To remove 1 Remove the top cover see page 2 2 Disconnect the connectors Remov...

Page 13: ...tronic components Printed circuit board U2 NOTE Do not disconnect the connectors by pulling on cord To disconnect the connectors grasp the connector not the cord To remove 1 Remove the base plate see...

Page 14: ...ews 3 pcs and the circuit board K To attach 1 Follow the above procedure in reverse Replacing electronic components Circuit board K connection Printed circuit board F Printed circuit board L1 Slide vo...

Page 15: ...rcuit board F To remove 1 Remove the front cover see page 5 2 Disconnect the connector A from the circuit board K 3 Remove the setscrews 2 pcs and the circuit board F To attach 1 Follow the above proc...

Page 16: ...cords from the board 3 Disconnect the connector B from the case 4 Remove the setscrews C 2 pcs 5 Remove the auxiliary power supply unit case from the machine Replacing electronic components C C B Auxi...

Page 17: ...1 2 and 5 Removing the USB unit 2 Disconnect the connector of the USB board from the printed circuti board A see page 7 Cut the tie band of the ferrite core and remove the cords from the board 3 Remov...

Page 18: ...ving motor connecter from the printed circuit board A 5 Remove the motor belt E 6 Remove the setscrews F 2 pcs and the driving motor To attach 1 Attach the driving motor Tighten the setscrews F tempor...

Page 19: ...ver see page 5 3 Disconnect the thread cut detection connector and the thread tension motor connecter from the printed circuit board U1 see page 9 4 Cut the tie bands and remove the ferrite cores as n...

Page 20: ...presser foot lifter button to lower the presser foot 4 Turn the handwheel toward you to raise the feed dog at its highest position 5 Loosen the setscrew A 6 Loosen the nut Turn the adjusting screw to...

Page 21: ...The direction of eccentric pin should be as shown as fig 2 4 Tighten the hexagonal socket screw Check the hook timing and the needle bar height after this adjustment see page 20 and 21 Mechanical adju...

Page 22: ...wer switch ON Select straight stitch Set the needle drop position at 0 0 Do not turn the switch OFF 4 Remove the presser foot the needle plate and the bobbin holder see page 4 Cover the needle plate w...

Page 23: ...edle bar height Tighten the hexagonal socket screw Be careful not to turn the needle bar 7 Attach the bobbin holder needle plate Hexagonal socket screw Needle setting groove Tip of hook Needle bar Mec...

Page 24: ...dle 4 Turn the power switch ON while pressing the Start Stop button and the Reverse stitch button to enter the factory setting mode Press Bobbin key The machine will set the zigzag width at maximum 5...

Page 25: ...rd you Adjust the clearance between the needle and the tip of the rotary hook by moving the hook base plate up or down to adjust the clearance between the needle and the tip of the hook 4 Tighten the...

Page 26: ...obbin holder see page 4 Cover the needle plate with the fabric to prevent damaging the needle plate when removing 3 Turn the handwheel toward you so the the tip of the rotary hook is within the width...

Page 27: ...ting mode Press Phase key 3 Turn the handwheel toward you slowly until the needle from its lowest position until Bight changes from L to H 4 The needle height should be 7 2 to 8 2 mm above from the su...

Page 28: ...mm sec in the direction of arrow 1 Turn the power switch ON while pressing the Start Stop button and the Reverse stitch button to enter the factory setting mode Press BH Sensor key 2 Thread 50 polyest...

Page 29: ...ease mechanism should work correctly 1 Remove the belt cover and top cover see pages 1 and 2 2 Remove the front cover see page 5 3 Turn the power switch off Turn the thread tension gear until the conv...

Page 30: ...e replacement parts order them as necessary q 858 266 009 Link plate 2 w 862 627 005 Hook holder unit e 862 626 004 Threader plate unit r 858 265 008 Link plate 1 t 000 230 403 Setscrew A 3 Assemle th...

Page 31: ...se very slightly until the NT Phase changes from L to H 3 Press the Adjust key The needle threader will automatically go down 4 Press the Dn key until the threader hook comes just behind the needle ey...

Page 32: ...emove the motor cover Connecter D 6 Remove the setscrews D Remove the motor and the needle threader unit from the carrying handle supporter Disconnect the connector of the needle threader motor from t...

Page 33: ...der should be in the range of 5 5 6 0 mm 1 Remove the presser foot the needle plate and the bobbin holder see page 4 You may use a fabric to prevent damaging the needle or the presser foot holder when...

Page 34: ...reset the needle position even though needle position is set at raised position 5 Check if the clearance between the upper feed link shaft and upper feed lower shaft is 2 5 mm If not follow the proce...

Page 35: ...ft To adjust 1 Loosen the setscrew on the upper feed adjusting arm 1 Adjust the clearance between the upper feed link shaft and upper feed lower shaft to 2 5 mm Upper feed lower shaft rear arm Upper f...

Page 36: ...e between the dual feed foot and upper feed dog should be 4 mm If not follow the procedure below To adjust 1 Remove the top cover see page 2 2 Loosen the hexagonal socket screws on upper feed rear arm...

Page 37: ...ot with the presser foot lifter Do not use the up down needle button to raise the needle otherwise you cannot raise the presser foot with the presser foot lifter in procedure 6 below 3 Loosen the sets...

Page 38: ...ff 7 Raise the toe of the dual feed foot in the direction of arrow in Fig 3 Keep the toe of the dual feed dog raised 8 Turn the handwheel toward you There should be no clearance between the edge of th...

Page 39: ...le 2 Open the face plate Loosen the setscrew You can lower the buttonhole lever half way if necessary You may insert the screwdriver between the front bracket and the base A to fix the base of the set...

Page 40: ...w of the buttonhole lever guide Move the buttonhole lever left and right Hold the buttonhole lever when the BH Sen shows L and tighten the setscrew 3 Attach the automatic buttonhole foot R Lower the b...

Page 41: ...page 3 4 2 Turn the power switch off Slide the moving cutter to the right with your finger 3 Turn the power switch on The moving cutter motor is initialized and moving cutter moves to its home positio...

Page 42: ...e presser foot Turn the power switch off 4 Raise the presser foot with the presser foot lifter You must use the presser foot lifter to raise the presser foot for this adjustment otherwise you cannot a...

Page 43: ...raised with the presser foot lifter Preparation 1 Turn the power switch on Press the drop feed key to lower the feed dogs Turn the power switch off 2 Raise the presser foot with the presser foot lifte...

Page 44: ...fabric at the top of the machine and place the motor unit on it while working or disconnect the needle threader motor cable from the printed circuit board U1 and remove them together Remove the setscr...

Page 45: ...t lifter Loosen the hexagonal socket screw of the presser foot lifter stopper from the front side of the machine 2 Adjust the distance between the presser foot spring release base and the presser foot...

Page 46: ...rn the gear A indicated with black arrow with your hand to raise the presser foot 4 Place the 13 mm spacer between the presser foot and the needle plate Lower the presser foot on the spacer firmly 5 B...

Page 47: ...sound is gone 6 Press again to apply foot pressure then press set to register the presser bar height Adjust the presser bar height always by pressing key Do not press at the end of this adjustment In...

Page 48: ...ffset key The Offset key changes to Adjust 4 Press 1 7 mm The embroidery foot will be lowered 5 Press or to adjust the distance between the lower edge of the embroidery foot and the surface of the nee...

Page 49: ...foot and the needle plate and lower the presser foot 4 Raise the presser foot lifter lightly as possible from its lowest position Stop the presser foot lifter at the point where the lifter start to r...

Page 50: ...Stop button and the Reverse stitch button to enter the factory setting mode Press 8 Adjust key see Fig 2 4 Sew the patterns at the maximum speed until the machine stops automatically The machine will...

Page 51: ...d the Reverse stitch button to enter the factory setting mode Press Knee lifter key 3 Attach the knee lifter Press MEM1 when the knee lifter is free 4 Push and hold the knee lifter to the right and pr...

Page 52: ...setting mode Press Bobbin key 4 Insert the empty bobbin in the bobbin holder diameter 8 4 mm 5 Rotate the bobbin holder counterclockwise so that the knob fits to the stopper in the hook race Press Key...

Page 53: ...tor to the printed circuit board U2 3 Check the needle plate sensor and adjust as necessary see the adjustment procedure below 4 Tighten the setscrews TP firmly 5 Attach the base cover bed cover and f...

Page 54: ...H when the needle plate is attached 6 Replace the needle plate with the needle plate for straight stitch Be sure that Straight indicates H and Zigzag indicates L If not adjust the micro switch base pl...

Page 55: ...r the embroidery unit see fig 2 3 Move the X carriage to the point where you can access the Y fixing plate from the inspection hole see fig 2 and 3 4 Loosen the setscrew 5 Tighten the setscrew while p...

Page 56: ...s to the start position and the initial X value 1950 is indicated The initial X value is 1950 5 Press key or to move the cloth guide to the position 15 mm away from the center needle position Adjust t...

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