Brother STAR240E Service Manual page 2

This service manual has been compiled for explaining repair procedures of the MODEL STAR240E, STAR230E,
PS57, PS55, PS53.
This was produced based on up-to-date product specifications at the time of issue, but there may have been
changes of specifications for the purpose of improvements.
Contact manufacturer or local sales company for information concerning such changes.
I . PRINCIPAL MECHANISMS.................................................................................. 1
II . DISASSEMBLING AND REASSEMBLING THE SEWING MACHINE ................ 8
III . MECHANICAL ADJUSTMENT STANDARDS AND ADJUSTMENT
PROCEDURES ................................................................................................... 31
IV . TROUBLESHOOTING PROCEDURES.............................................................. 63
V . HOW TO ADJUST ELECTRONIC ELEMENTS (STAR240E, STAR230E Only)67
(STAR240E, STAR230E, PS57, PS55, PS53)
1. Use the operation procedure given in this document.
2. Always disconnect the power cord from the socket before starting to install or remove any parts.
3. Always replace only with genuine Brother parts.
4. Do not alter this sewing machine.
* Doing so can cause fire, electrical shock, injury, etc.
(STAR240E, STAR230E)
5. Always use rubber gloves when handling printed circuit boards and never touch the metal portion of a printed
circuit board with bare hands.
6. Keep your body earthed in order to avoid generating static electricity.
7. Pack printed circuit boards in aluminum foil and avoid subjecting then to any form of impact during storage or
transportation.
8. Do not touch or damage the metal portion of a printed circuit board with a screwdriver or any other tool while
making repairs or the like.
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