Brother BC800 - Default Chapter; Table of Contents

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1. Outline of Mechanism ........................................................................1 - 1
Main Mechanisms ...........................................................................1 - 2
Driveline ..........................................................................................1 - 3
Positions of electronic components ...................................................................1 - 4
Control system block diagram ...........................................................................1 - 5
Control system block diagram ...........................................................................1 - 6
Operation of other electronic components .........................................................1 - 7
2. Disassembly ........................................................................................2 - 1
Main parts ..........................................................................................................2 - 2
Accessory table removal ....................................................................................................................2 - 3
Bottom cover removal .......................................................................................................................2 - 3
Needle plate B assembly removal ......................................................................................................2 - 4
Needle plate B ASSY disassembly ..............................................................................................2 - 4
Face plate assembly removal .............................................................................................................2 - 5
Face plate A ASSY disassembly .................................................................................................2 - 5
Front cover removal ...........................................................................................................................2 - 6
Thread tension holder assembly and thread take-up holder B removal .............................................2 - 7
Thread tension holder ASSY disassembly ..................................................................................2 - 7
Thread take-up holder B disassembly ...........................................................................................2 - 8
LED lamp removal .............................................................................................................................2 - 8
Operation PCB assembly and SSVR PCB assembly removal ...........................................................2 - 9
Button removal ..................................................................................................................................2 - 9
Front panel and LCD removal ...........................................................................................................2 - 9
SV keytop removal ..........................................................................................................................2 - 10
Base plate rubber removal ...............................................................................................................2 - 10
Upper cover thread guide removal ...................................................................................................2 - 10
Main PCB assembly removal ..........................................................................................................2 - 11
Main PCB ASSY disassembly ...................................................................................................2 - 11
Power PCB assembly removal .........................................................................................................2 - 12
Power PCB ASSY disassembly ................................................................................................2 - 12
Inlet assembly removal ....................................................................................................................2 - 12
FC jack removal ...............................................................................................................................2 - 13
Main motor assembly removal ........................................................................................................2 - 13
Main motor ASSY disassembly ................................................................................................2 - 13
Tension pulley assembly removal ....................................................................................................2 - 14
Tension pulley ASSY disassembly ............................................................................................2 - 14
Feed unit assembly removal ...........................................................................................................2 - 14
Upper shaft assembly removal .........................................................................................................2 - 15
Needle-presser unit removal ............................................................................................................2 - 15
Plate spring removal ........................................................................................................................2 - 15
Bobbin base assembly removal ........................................................................................................2 - 16
Bobbin base ASSY disassembly ................................................................................................2 - 16
Bobbin winder assembly removal ....................................................................................................2 - 16
Spool pin removal ............................................................................................................................2 - 17
Bobbin presser removal ...................................................................................................................2 - 17
Thread guide assembly removal ......................................................................................................2 - 17
Base plate rubber removal ...............................................................................................................2 - 18
Feed unit ..........................................................................................................2 - 19
Needle plate A assembly removal ...................................................................................................2 - 20