Brother PR650 Parts Book
CONFIDENTIAL
c
2009 Brother Industries, Ltd.
All rights reserved.
1. Outline of Mechanism ........................................................................1 - 1
Main Mechanisms ...........................................................................1 - 2
Driveline ..........................................................................................1 - 3
Positions of electronic components ................................................1 - 5
Control system block diagram .........................................................1 - 7
Layout for P.C.B. connectors ..........................................................1 - 8
Operation of other electronic components ....................................1 - 10
2. Disassembly ........................................................................................2 - 1
Main parts ..........................................................................................................2 - 2
Motor cover and carriage cover removal ...........................................................................................2 - 3
Bed cover removal .............................................................................................................................2 - 4
Arm cover R removal ........................................................................................................................2 - 5
Arm cover L removal .........................................................................................................................2 - 6
Base cover R removal ........................................................................................................................2 - 7
Base cover L removal ........................................................................................................................2 - 8
LED drive PCB removal ....................................................................................................................2 - 8
LED PCB plate removal ....................................................................................................................2 - 9
Main PCB assembly removal ............................................................................................................2 - 9
Spool stand frame final assembly removal ........................................................................................2 - 9
Operation panel assembly removal ..................................................................................................2 - 10
Thread take-up cover removal .........................................................................................................2 - 10
Tension base removal ......................................................................................................................2 - 11
Needle plate removal .......................................................................................................................2 - 11
Needle plate base assembly removal ...............................................................................................2 - 12
Needle plate base disassembly .........................................................................................................2 - 12
Picker bracket removal ....................................................................................................................2 - 12
Picker bracket disassembly ..............................................................................................................2 - 13
Rotary hook removal .......................................................................................................................2 - 13
Cutter unit final assembly and picker final assembly removal ........................................................2 - 14
Feed unit ..........................................................................................................2 - 15
T-belt (Y-guide) removal .................................................................................................................2 - 16
Feed final assembly removal ...........................................................................................................2 - 17
Y-motor final assembly removal .....................................................................................................2 - 18
Y-motor disassembly .......................................................................................................................2 - 18
Y-driving shaft assembly removal ...................................................................................................2 - 19
Cord grip removal ............................................................................................................................2 - 19
FFC and X-area sensor assembly removal ......................................................................................2 - 20
Y-frame spacer and X-belt presser removal ....................................................................................2 - 20
X-feed frame B removal ..................................................................................................................2 - 20
X-carriage A assembly and X-carriage B assembly removal ..........................................................2 - 21
X-sensor dog removal ......................................................................................................................2 - 21
Hoop sensor removal .......................................................................................................................2 - 22
X-guide shaft removal .....................................................................................................................2 - 22
T-belt (Y-drive) removal .................................................................................................................2 - 23
Feed frame disassembly ...................................................................................................................2 - 23
Y-carriage L disassembly ................................................................................................................2 - 24
Y-carriage R disassembly ................................................................................................................2 - 25
Connect PCB disassembly ...............................................................................................................2 - 25
i
Needle thread unit ...........................................................................................2 - 26
Needle thread assembly removal .....................................................................................................2 - 27
Hook holder assembly removal .......................................................................................................2 - 27
Rack and hook holder link removal .................................................................................................2 - 28
TH motor assembly and LED light assembly removal ....................................................................2 - 28
Needle bar change unit ....................................................................................2 - 29
Change box center cover removal ...................................................................................................2 - 30
Change box removal ........................................................................................................................2 - 30
Change box disassembly (Step 1) ....................................................................................................2 - 31
Change box disassembly (Step 2) ....................................................................................................2 - 32
Thread wiper unit ............................................................................................. 2 - 33
LED unit left assy removal ..............................................................................................................2 - 34
LED unit right assy removal ............................................................................................................2 - 34
Thread presser base removal ............................................................................................................2 - 34
Thread presser base disassembly .....................................................................................................2 - 34
Wiper set assembly removal ............................................................................................................2 - 35
Wiper guide and wiper sensor removal ...........................................................................................2 - 35
Wiper set disassembly .....................................................................................................................2 - 36
Needle bar unit ................................................................................................2 - 37
LED unit left assy disassembly ........................................................................................................2 - 38
LED unit right assy disassembly .....................................................................................................2 - 38
LED cord guide removal ..................................................................................................................2 - 39
Needle bar case final assembly removal ..........................................................................................2 - 39
Change roller base assembly removal .............................................................................................2 - 39
Case guide D removal ......................................................................................................................2 - 39
Thread take-up lever assembly removal ..........................................................................................2 - 40
Thread take-up lever disassembly ....................................................................................................2 - 40
Needle bar removal ..........................................................................................................................2 - 41
Needle bar case disassembly ............................................................................................................2 - 41
Case positioning plate assembly removal ........................................................................................2 - 42
Case positioning plate disassembly .................................................................................................2 - 42
Case bracket assembly removal .......................................................................................................2 - 43
Case bracket disassembly ................................................................................................................2 - 44
Case guide UL disassembly .............................................................................................................2 - 44
Upper shaft unit ...............................................................................................2 - 45
Main motor final assembly removal ................................................................................................2 - 46
Main motor disassembly ..................................................................................................................2 - 47
Driving jump assembly removal ......................................................................................................2 - 47
Driving jump disassembly ...............................................................................................................2 - 48
Base needle bar removal ..................................................................................................................2 - 49
J-clamp disassembly ........................................................................................................................2 - 49
Presser foot vertical base disassembly .............................................................................................2 - 50
Thread take-up driving lever final assembly removal .....................................................................2 - 50
Thread take-up driving lever disassembly .......................................................................................2 - 51
Main shaft sensor final assembly removal .......................................................................................2 - 52
Crank rod removal ...........................................................................................................................2 - 52
Pressure foot driving shaft assembly removal .................................................................................2 - 53
Presser foot driving shaft disassembly .............................................................................................2 - 53
Upper shaft assembly removal .........................................................................................................2 - 54
Upper shaft disassembly ..................................................................................................................2 - 54
Lower shaft unit ...............................................................................................2 - 55
Arm bed and base frame disconnection ...........................................................................................2 - 56
Idle pulley assembly removal ..........................................................................................................2 - 56
ii
Idle pulley disassembly ....................................................................................................................2 - 56
Lower shaft removal ........................................................................................................................2 - 57
Power unit ........................................................................................................2 - 58
Power switch assembly and inlet removal .......................................................................................2 - 59
USB PCB assembly and Y-area sensor assembly removal .............................................................2 - 60
Power PCB assembly removal .........................................................................................................2 - 60
Power PCB disassembly ..................................................................................................................2 - 61
Adjust-bolt removal .........................................................................................................................2 - 62
Thread cut unit .................................................................................................2 - 63
Picker disassembly ...........................................................................................................................2 - 64
Cutter unit disassembly (Step 1) ......................................................................................................2 - 65
Cutter unit disassembly (Step 2) ......................................................................................................2 - 66
Thread tension unit ..........................................................................................2 - 67
Loosen the tension nut removal .......................................................................................................2 - 68
Tension base bracket removal ..........................................................................................................2 - 68
Inner thread eyelet base removal .....................................................................................................2 - 69
Thread sensor PCB assembly and head PCB assembly removal .....................................................2 - 69
Upper thread eyelet base removal ....................................................................................................2 - 70
Antenna assembly removal ..............................................................................................................2 - 70
Antenna disassembly .......................................................................................................................2 - 71
Spool stand frame disassembly (Step 1) ..........................................................................................2 - 72
Spool stand frame disassembly (Step 2) ..........................................................................................2 - 72
Thread take-up lever cover disassembly (Step 1) ............................................................................2 - 73
Thread take-up lever cover disassembly (Step 2) ............................................................................2 - 74
Thread take-up bracket disassembly ................................................................................................2 - 75
Operation panel ...............................................................................................2 - 76
Operation panel lever assembly removal .........................................................................................2 - 77
Operation panel lever C removal .....................................................................................................2 - 77
Panel holder removal .......................................................................................................................2 - 78
Operation panel lever A removal .....................................................................................................2 - 78
USB cord holder removal ................................................................................................................2 - 78
Panel rear cover removal .................................................................................................................2 - 79
Lead wire assy panel removal ..........................................................................................................2 - 79
Communication relay PCB assy removal ........................................................................................2 - 80
Card cover removal ..........................................................................................................................2 - 80
Pen holder removal ..........................................................................................................................2 - 80
Inverter removal ...............................................................................................................................2 - 81
Panel PCB case removal ..................................................................................................................2 - 81
Panel PCB supply assy removal ......................................................................................................2 - 82
USB cover removal ..........................................................................................................................2 - 82
Board supporter removal .................................................................................................................2 - 82
PCB base plate removal ...................................................................................................................2 - 83
SS PCB assy removal ......................................................................................................................2 - 83
Buttons removal ...............................................................................................................................2 - 84
Speaker set removal .........................................................................................................................2 - 84
LCD assy removal ...........................................................................................................................2 - 85
Touch panel assy removal ................................................................................................................2 - 85
3. Assembly .............................................................................................3 - 1
Operation panel .................................................................................................3 - 2
Touch panel assy attachment .............................................................................................................3 - 3
LCD assy attachment .........................................................................................................................3 - 3
iii
Speaker set attachment .......................................................................................................................3 - 3
Buttons attachment ............................................................................................................................3 - 4
SS PCB assy attachment ....................................................................................................................3 - 4
PCB base plate attachment ................................................................................................................3 - 5
Board supporter attachment ...............................................................................................................3 - 5
USB cover removal ............................................................................................................................3 - 5
Panel PCB supply assy attachment ....................................................................................................3 - 6
Panel PCB case attachment ................................................................................................................3 - 6
Inverter attachment ............................................................................................................................3 - 7
Pen holder attachment ........................................................................................................................3 - 7
Card cover attachment .......................................................................................................................3 - 7
Communication relay PCB assy attachment ......................................................................................3 - 8
Lead wire assy panel attachment .......................................................................................................3 - 8
Panel rear cover attachment ...............................................................................................................3 - 9
USB cord holder attachment ..............................................................................................................3 - 9
Operation panel lever A attachment ................................................................................................3 - 10
Panel holder attachment ...................................................................................................................3 - 10
Operation panel lever C attachment .................................................................................................3 - 10
Operation panel lever assembly attachment ....................................................................................3 - 11
Thread tension unit ..........................................................................................3 - 12
Thread take-up bracket assembly ....................................................................................................3 - 13
Thread take-up lever cover assembly (Step 1) .................................................................................3 - 14
Thread take-up lever cover assembly (Step 2) .................................................................................3 - 15
Spool stand frame assembly (Step 1) ...............................................................................................3 - 16
Spool stand frame assembly (Step 2) ...............................................................................................3 - 16
Antenna assembly (Step 1) ..............................................................................................................3 - 17
Antenna assembly (Step 2) ..............................................................................................................3 - 17
Antenna assembly attachment .........................................................................................................3 - 18
Upper thread eyelet base attachment ...............................................................................................3 - 18
Thread sensor PCB assembly and head PCB assembly attachment ................................................3 - 19
Inner thread eyelet base attachment .................................................................................................3 - 20
Tension base bracket attachment .....................................................................................................3 - 20
Tension base lead wire assembly attachment ..................................................................................3 - 21
Tension nut attachment ....................................................................................................................3 - 22
iv
Thread cut unit .................................................................................................3 - 23
Cutter unit assembly (Step 1) ...........................................................................................................3 - 24
Cutter unit assembly (Step 2) ...........................................................................................................3 - 25
Picker assembly ...............................................................................................................................3 - 26
Power unit ........................................................................................................3 - 27
Adjust bolt attachment .....................................................................................................................3 - 28
Power PCB assembly .......................................................................................................................3 - 29
Power PCB assembly attachment ....................................................................................................3 - 30
USB PCB holder assembly and Y-area sensor assembly attachment ..............................................3 - 31
Power switch assembly and inlet attachment ..................................................................................3 - 32
Lower shaft unit ...............................................................................................3 - 33
Lower shaft attachment ....................................................................................................................3 - 34
Idle pulley assembly ........................................................................................................................3 - 35
Idle pulley assembly attachment ......................................................................................................3 - 35
Connection of arm bed and base frame ...........................................................................................3 - 36
Upper shaft unit ...............................................................................................3 - 37
Upper shaft assembly .......................................................................................................................3 - 38
Upper shaft assembly attachment ....................................................................................................3 - 39
Presser foot driving shaft assembly .................................................................................................3 - 40
Presser foot driving shaft assembly attachment ...............................................................................3 - 41
Crank rod assembly attachment .......................................................................................................3 - 42
Main shaft sensor final assembly attachment ..................................................................................3 - 43
Thread take-up driving lever final assembly ...................................................................................3 - 44
Thread take-up driving lever final assembly attachment ................................................................3 - 45
Presser foot vertical base final assembly ........................................................................................3 - 45
Vertical set assembly ......................................................................................................................3 - 46
Base needle bar attachment ..............................................................................................................3 - 47
Driving jump assembly (1) ..............................................................................................................3 - 48
Driving jump assembly (2) ..............................................................................................................3 - 49
Driving jump assembly attachment .................................................................................................3 - 50
Tension pulley assembly attachment ...............................................................................................3 - 50
Main motor final assembly ..............................................................................................................3 - 51
Main motor final assembly attachment ............................................................................................3 - 51
Needle bar unit ................................................................................................3 - 52
Case guide UL assembly .................................................................................................................3 - 53
Case bracket assembly .....................................................................................................................3 - 54
Case bracket assembly attachment ..................................................................................................3 - 55
Case positioning plate assembly .....................................................................................................3 - 56
Case positioning plate assembly attachment ...................................................................................3 - 56
Needle bar case final assembly .......................................................................................................3 - 56
Needle bar attachment .....................................................................................................................3 - 57
Thread take-up lever assembly ........................................................................................................3 - 58
Thread take-up lever assembly attachment ......................................................................................3 - 59
Case guide D attachment .................................................................................................................3 - 60
Change roller base assembly attachment .........................................................................................3 - 60
Needle bar case final assembly attachment .....................................................................................3 - 61
LED cord guide attachment .............................................................................................................3 - 62
LED unit right assy assembly ..........................................................................................................3 - 62
LED unit left assy assembly ............................................................................................................3 - 63
Thread wiper unit ............................................................................................. 3 - 64
Wiper set assembly ..........................................................................................................................3 - 65
Wiper guide and wiper sensor attachment .......................................................................................3 - 66
Wiper set assembly attachment ........................................................................................................3 - 67
Thread presser base assembly ..........................................................................................................3 - 68
Thread presser base attachment .......................................................................................................3 - 68
LED unit right assy removal ............................................................................................................3 - 68
LED unit left assy removal ..............................................................................................................3 - 68
Needle bar change unit ....................................................................................3 - 69
Change box assembly (Step 1) .........................................................................................................3 - 70
Change box assembly (Step 2) .........................................................................................................3 - 71
Change box assembly (Step 3) .........................................................................................................3 - 72
Change box assembly attachment ....................................................................................................3 - 72
Change box center cover attachment ...............................................................................................3 - 73
Needle thread unit ...........................................................................................3 - 74
Thread motor assembly attachment .................................................................................................3 - 75
Rack assembly and hook holder link attachment .............................................................................3 - 75
Hook assembly .................................................................................................................................3 - 76
Needle thread assembly attachment .................................................................................................3 - 76
Feed unit ..........................................................................................................3 - 77
Connect PCB final assembly ...........................................................................................................3 - 78
Y-carriage R assembly .....................................................................................................................3 - 79
v
Y-carriage L assembly .....................................................................................................................3 - 80
Feed frame assembly attachment .....................................................................................................3 - 81
T-belt (X-drive) attachment .............................................................................................................3 - 82
X-guide shaft attachment .................................................................................................................3 - 83
Hoop sensor attachment ...................................................................................................................3 - 84
X-sensor dog attachment .................................................................................................................3 - 85
X-carriage A assembly and X-carriage B assembly attachment ......................................................3 - 86
X-feed frame B attachment ..............................................................................................................3 - 87
Y-frame spacer and X-belt presser attachment ................................................................................3 - 88
FFC and X-area sensor assembly attachment ..................................................................................3 - 89
Cord grip attachment .......................................................................................................................3 - 90
Y driving shaft assembly attachment ...............................................................................................3 - 91
Y-motor final assembly ...................................................................................................................3 - 91
Y motor final assembly attachment .................................................................................................3 - 92
Feed final assembly attachment .......................................................................................................3 - 93
T-belt (Y-guide) attachment ............................................................................................................3 - 94
Main unit ..........................................................................................................3 - 95
Cutter unit final assembly and picker final assembly attachment ...................................................3 - 96
Rotary hook attachment ...................................................................................................................3 - 97
Picker bracket final assembly ..........................................................................................................3 - 97
Picker bracket final assembly attachment ........................................................................................3 - 97
Needle plate base assembly .............................................................................................................3 - 98
Needle plate base assembly attachment ...........................................................................................3 - 99
Needle plate attachment ...................................................................................................................3 - 99
Tension base attachment ................................................................................................................3 - 100
Thread take-up lever cover attachment ..........................................................................................3 - 101
Operation panel assembly attachment ...........................................................................................3 - 102
Spool stand frame final assembly attachment ................................................................................3 - 102
Main PCB assembly attachment ....................................................................................................3 - 103
LED PCB plate attachment ............................................................................................................3 - 104
LED drive PCB assembly attachment ...........................................................................................3 - 104
Base cover L attachment ................................................................................................................3 - 105
Base cover R attachment ................................................................................................................3 - 106
Arm cover L attachment ................................................................................................................3 - 107
Arm cover R attachment ................................................................................................................3 - 108
Bed cover attachment .....................................................................................................................3 - 109
Motor cover / carriage cover attachment .......................................................................................3 - 110
4. Adjustment ..........................................................................................4 - 1
Needle point damage .........................................................................................4 - 2
Starting test mode ..............................................................................................4 - 3
Selecting test mode ...........................................................................................4 - 4
Input needle bar data for adjustment ...............................................................4 - 13
Motor belt tension ............................................................................................4 - 15
Timing belt tension ...........................................................................................4 - 16
Needle drop (front/back) .................................................................................. 4 - 17
Needle position (left/right) ................................................................................4 - 19
Needle bar rising and Needle clearance ..........................................................4 - 20
Needle bar height ............................................................................................4 - 22
vi
Rotary hook stopper clearance ........................................................................4 - 24
Presser foot height ...........................................................................................4 - 25
Needle bar top dead center .............................................................................4 - 26
Needle threader (up/down) ..............................................................................4 - 27
Needle threader (left/right) ...............................................................................4 - 29
Y belt tension ...................................................................................................4 - 30
X belt tension ...................................................................................................4 - 31
Picker activation ...............................................................................................4 - 32
Movable knife initial position ............................................................................4 - 33
Thread presser base up/down position ............................................................4 - 34
Hoop sensor (A/D value) .................................................................................4 - 35
Upper shaft encoder phase .............................................................................4 - 37
X, Y carriage initial position .............................................................................4 - 38
Cutter knife engagement load ..........................................................................4 - 39
5. Failure Investigation for Electronic Parts .........................................5 - 1
Error message list ..............................................................................................5 - 2
The power is not turned on. ...............................................................................5 - 3
The touch panel does not work. .........................................................................5 - 6
The panel switch does not work. .......................................................................5 - 7
The needle bar does not move normally. ..........................................................5 - 8
Thread breakage detection does not function normally. ....................................5 - 9
The hoop does not move normally. .................................................................5 - 10
The main shaft does not rotate normally. ........................................................5 - 12
Thread is not cut normally. ..............................................................................5 - 13
The wiper does not function normally. .............................................................5 - 14
A needle is not threaded normally. ..................................................................5 - 15
The picker does not function normally. ............................................................ 5 - 16
LED light does not turn ON. .............................................................................5 - 17
USB function and USB media cannot be used normally. ................................5 - 19
The hoop sensor does not function normally. ..................................................5 - 20
Sound does not work .......................................................................................5 - 23
Error message .................................................................................................5 - 24
6. Maintenance & Replacement .............................................................6 - 1
How to reset the counter of the maintenance ....................................................6 - 2
Necessary grease & oil ......................................................................................6 - 3
vii
Maintenance point (Every 1,500 hours) .............................................................6 - 4
Maintenance point (Every 500 hours) ..............................................................6 - 10
Maintenance point (Every day) ........................................................................6 - 11
Replacement parts location .............................................................................6 - 12
Main PCB assy ................................................................................................6 - 13
Power supply PCB unit ....................................................................................6 - 16
Main motor assy ..............................................................................................6 - 19
Panel PCB and LCD module ...........................................................................6 - 22
Head unit .........................................................................................................6 - 23
Hook holder .....................................................................................................6 - 24
7. Special Instructions of Wiring ...........................................................7 - 1
Head wiring ........................................................................................................7 - 2
LED unit wiring ...................................................................................................7 - 3
Arm wiring ........................................................................................................7 - 10
Base frame wiring ............................................................................................ 7 - 17
Main PCB wiring ..............................................................................................7 - 19
Y-feed cable wiring ..........................................................................................7 - 20
X-feed cable wiring ..........................................................................................7 - 22
Panel wiring .....................................................................................................7 - 25
viii
1
Outline of Mechanism
Main Mechanisms .................................................... 1 - 2
Driveline .................................................................... 1 - 3
Positions of electronic components........................... 1 - 5
Control system block diagram................................... 1 - 7
Layout for P.C.B. connectors .................................... 1 - 8
Operation of other electronic components .............. 1 - 10
1 - 1
Outline of Mechanism Main Mechanisms
Needle bar change box mechanism
Needle bar mechanism
Upper shaft mechanism
Thread cutting mechanism
Lower shaft mechanism
Feed mechanism
Needle threader mechanism
1 - 2
Outline of Mechanism Driveline
A) Up and down movement of needle bar, movement of presser foot thread take-up
mechanism
Thread guide,
needle bar
Needle
Thread take-up
driving lever assy
Thread take-up cam Presser foot cam
Needle bar crank rod
assy
Junp bracket
Needle bar clamp
Needle bar
Presser foot spring Presser foot clamp
Thread take-up lever assy
Thread take-up
differential lever
Presser foot driving
lever assy
Presser foot vertical
base assy
Thread take-up differential lever
Presser foot cam
Thread take-up lever
assy
Upper shaft
Timing pulley
Motor belt
Main motor
Presser foot
Upper shaft
Timing pulley
Pulley
Pulley
Outline of
Mechanism
Needle bar clamp
Needle bar
Presser foot spring
Presser foot clamp
Presser foot
Thread guide,
needle bar
Needle
Motor belt
Main motor
Thread take-up driving lever assy
Thread take-up cam
Needle bar crank rod assy
Presser foot driving lever assy
Jump bracket
Presser foot vertical base assy
1 - 3
Outline of Mechanism Driveline
B) Movement of rotary hook
Lower shaft gear
Timing belt
Timing pulley Upper shaft PulleyIdle pulley
Motor belt
Main motor
Rotary hookLower shaft
Upper shaft
Timing belt
Pulley
Timing pulley
Motor belt
Rotary hook
Idle pulley
Main motor
Lower shaft gear
Lower shaft
1 - 4
Outline of Mechanism Positions of electronic components
Connect PCB
LED Light
TH sensor
(Thread quantity sensor)
X motor
X area sensor
Head PCB
Hoop sensor
Magnet PCB (Hoop sensor PCB)
Outline of
Mechanism
Y area sensor
Y motor
Picker motor
Picker sensor
TH cutter motor
(Thread cutter motor)
TH cutter sensor
(Thread cutter sensor)
Inlet
Power SW
Power supply PCB
1 - 5
Outline of Mechanism Positions of electronic components
Color change sensor
Index sensor
Wiper motor
Wiper sensor
Needle TH sensor
(Needle thread sensor)
TH motor
(Needle thread motor)
Touch panel
Index motor
Main shaft sensor
SS PCB (Switch PCB)
LED Drive PCB
LCD module
Communication relay PCB
Main PCB
Main motor
Panel PCB
Inverter PCB
1 - 6
Outline of Mechanism Control system block diagram
AC Power
supply
Inlet
Power supply
SW
POWER PCB
Switching
Power supply
40V,24V
LED light x2
LED DRIVE PCB
MAIN PCB
Power supply
5V
3.3V
40V, 24V
Power supply monitor
Needle thread
sensor
MAIN
SHAFT SENSOR
A/B
phase
sensor
Communication
Needle thread
Stop
position
sensor
EEPROM
I/F
motor
Hoop sensor
Main motor
Thread cutter
sensor
Hoop PCB
Color
change
sensor
CPU
Thread cutter
motor
Index
sensor
X area
sensor
Index
motor
Wiper sensor
Picker
sensor
Wiper motor
Main motor driver
Stepping motor
driver x7
CPLD
Picker
motor
CONNECT
PCB
Thread quantity
sensor x6
HEAD PCB
Y motor
Y area
sensor
Outline of
Mechanism
SEWING MACHINE
OPERATION PANEL
ASSY : PANEL PCB
Power supply
5V,3.3V,3V,
1.8V,1.4V
NAND FLASH
ROM
DDR SDRAM
EEPROM
24V
Communication
relay PCB
Magnet
Hoop sensor
CPU
SDIO
X motor
Inverter PCB (for back light)
LCD Module
Touch panel
Start/Stop ,
Needle thread SW
Thread cutter
Two-color LED
Speaker
USB 2.0
(FUNCTION)
USB 1.1
(HOST)
USB 2.0
(HOST)
1 - 7
Outline of Mechanism Layout for P.C.B. connectors
The illustration below shows layout for Printed Board connectors.
Main P.C.B.
CN9
SAFE
31
CN11
1
TORG
(Thread cutter
3
sensor)
CN22
1
IORG
(Index sensor)
3
CN12
1
IROT
(Color change
3
sensor)
CN13
1
WORG
(Wiper sensor)
3
71
(LED drive PCB)
CN10
PANEL
(Panel PCB)
CN8
HEAD
81
(Head PCB)
61
CN23
WRITE
* Not used
CN6
4
THRD
(TH motor)
1
CN5
4
WIPER
(Wiper motor)
1
CN14
1
THREAD
(Needle thread
3
sensor)
CN15
1
PORG
(Picker sensor)
3
CN17
1
ENC
(Main shaft sensor)
6
CN18
1
ISP
* Not used
6
CN19
1
XMOTO R
(X motor)
9
CN20
1
YMOTO R
(Y motor)
4
CN4
4
INDEX
(Index motor)
1
CN21
15
POWER
(Power supply
PCB)
CN3
4
PICKER
(Picker motor)
1
CN4
4
TRIM
(Thread cutter
1
motor)
CN1
1
MOTOR
(Power supply
2
PCB_motor)
Connector Pins
51
1 - 8
Pin # : 1
Pin # : 5
Outline of Mechanism Layout for P.C.B. connectors
Panel P.C.B.
CN10
SD
*Not used
CN12
USB_H_H
(USB2.0 HOST)
4
1
CN13
USB_H_F
(USB2.0
Function)
4
1
CN11
USB_F
(USB1.1 HOST)
2
1
41
CN9
AUDIO
21
(Speaker)
CN7
TP
(Touch Panel)
31
40 1
CN8
CFL
(LCD back light)
CN6
LCDM
(LCD module)
CN2
SS
(Start/Stop
switch PCB)
1
8
CN3
TH
*Not used
1
2
CN4
VR
*Not used
1
3
CN5
MAIN
(Main PCB)
1
6
Outline of
Mechanism
Connector Pins
51
Pin # : 1
Pin # : 5
1 - 9
Outline of Mechanism Operation of other electronic components
Start/stop switch . . . . . . . . . . . . . . . . . . . . . . This switch is used to start and stop the sewing machine.
Thread cutter switch . . . . . . . . . . . . . . . . . . . This switch is used to cut thread. Pressing this switch starts the
sewing machine, cuts thread, and stops the machine at the
position where the spindle stops.
Needle thread switch . . . . . . . . . . . . . . . . . . This switch is used to thread a needle. Pressing this switch
moves the needle bar to the thread guide position, and pressing it
again threads the needle and then returns the needle bar to its
original position.
Hoop sensor . . . . . . . . . . . . . . . . . . . . . . . . . This sensor detects the position of the arm when attaching the
hoop, in order to identify the hoop.
Stop position sensor, A/B phase sensor . . . . These sensors detect the angle of the main shaft and the
rotational speed.
Index sensor, color change sensor . . . . . . . . These sensors detect the color change position.
Thread quantity sensor . . . . . . . . . . . . . . . . . This sensor detects the consumption of upper thread. It also
detects upper/lower thread breakage indicated by the
consumption of upper thread.
Wiper sensor. . . . . . . . . . . . . . . . . . . . . . . . . This sensor detects the position of the wiper.
Picker sensor . . . . . . . . . . . . . . . . . . . . . . . . This sensor detects the position of the picker.
Thread cutter sensor . . . . . . . . . . . . . . . . . . . This sensor detects the position of the movable knife that cuts
the thread.
Needle thread sensor . . . . . . . . . . . . . . . . . . This sensor detects the position of the thread guide.
X sensor (Y sensor) . . . . . . . . . . . . . . . . . . . This sensor detects the position of the X (Y) guide to move the
hoop.
LED light (L/R) . . . . . . . . . . . . . . . . . . . . . . White LED lights for illuminating the work space.
Touch Panel . . . . . . . . . . . . . . . . . . . . . . . . . Used to select and edit patterns and input test mode number by
touching the display on the panel.
1 - 10
2
Disassembly
Main unit Main parts........................................ 2 - 2
Feed unit.........................................2 - 15
Needle thread unit ..........................2 - 26
Needle bar change unit ..................2 - 29
Thread wiper unit............................2 - 33
Needle bar unit ...............................2 - 37
Upper shaft unit ..............................2 - 45
Lower shaft unit ..............................2 - 55
Power unit.......................................2 - 58
Thread cut unit................................2 - 63
Thread tension unit.........................2 - 67
Operation panel ..............................2 - 76
2 - 1
Main unit
Main parts
2 - 2
Main unit
Main parts
1 Motor cover and carriage cover removal
1. Remove the screw cover 1.
2. Remove the screw 1, and then remove the carriage cover 2.
3. Remove the 2 screw 2, and then remove the motor cover 3.
1
2
Disassembly
1
2
3
2 - 3
Main unit
Main parts
2 Bed cover removal
1. Remove the 2 screws 1, and then remove the bed cover bottom assembly
1.
2. Remove the 2 screws 2, and then remove the bed cover lid 2 from the
bed cover bottom assembly.
3. Remove the hinged door 3 and the spring 4 from the bed cover bottom
assembly.
4. Remove the 4 screws 3, and then remove the bed cover top 5 and the bed
cover 6.
1
1
2
2
3
2 - 4
4
6
3
5
Main unit
Main parts
3 Arm cover R removal
1. Remove the 5 screw covers 1.
2. Remove the 2 thumb bolts (M4S) 2, the 2 washer springs (2-4) and the 2
washer plains (M4) from the operation panel assembly.
*Key point
• When remove the thumb bolt (M4S), be careful not to lose the
washer spring (2-4) and the washer plain (M4).
3. Remove the 2 screws 1, and then remove the arm cover R lid 3.
4. Remove the 3 screws 2, and then remove the arm cover R 4.
1
1
1
2
Disassembly
2
3
2
4
2 - 5
Main unit
Main parts
4 Arm cover L removal
1. Remove the 3 screw covers 1.
2. Remove the screw inside the cover 1 and the 2 screws outside the cover
2, and then remove arm cover L 2.
Outside
1
2
Inside
2
1
2 - 6
Main unit
Main parts
5 Base cover R removal
1. Remove the 2 screws 1, and then remove the base cover R lid 1.
2. Remove the 2 screw covers 2.
3. Removes the 3 screws 2, and then remove the base cover R 3.
*Key point
• Fully draw the feed final assembly toward you before
removing the base cover R.
1
1
Disassembly
2
3
2
2 - 7
Main unit
Main parts
6 Base cover L removal
1. Remove the 2 screw covers 1.
2. Remove the 2 screws 1, and then remove the base cover L lid 2.
3. Remove the 3 screws 2, and then remove the base cover L 3.
*Key point
• Fully draw the feed final assembly toward you before
removing the base cover L.
1
2
7 LED drive PCB removal
1. Disconnect the 2 connectors 1 from the LED drive PCB assembly 2.
2. Remove the 2 screws 1, and then remove the LED drive PCB assembly
2.
1
3
2
12
2 - 8
1
Main unit
Main parts
8 LED PCB plate removal
1. Remove the 2 screws 1, and then remove the LED PCB plate 1.
9 Main PCB assembly removal
1. Disconnect all connectors from the main PCB.
2. Remove the 4 screws 1, and then remove the main PCB assembly 1.
3. Remove the 4 screws 2, and then remove board holder U 2 and board
holder D 3.
1 1
1
Disassembly
2
2
10 Spool stand frame final assembly removal
1. Remove the 3 screws 1, and then remove the spool stand frame final
assembly 1.
2. Remove the 3 studs 2.
1
1
1
1
3
2
1
2
2 - 9
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