Bernina aurora 435 Service Manual
  1. Manuals
  2. Brands
  3. Bernina Manuals
  4. Laboratory Equipment
  5. 435
  6. Service manual

Bernina aurora 435 Service Manual

Hide thumbs Also See for aurora 435:
Table of Contents

Advertisement

Quick Links

Download this manual
Service Manual
aurora 435 / 450
and special models
Supplement to the Service Manual
aurora 430 / 440 and artista 630 / 640
BERNINA International AG
Seestrasse 161
8266 Steckborn
Switzerland
1
Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the aurora 435 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Bernina aurora 435

Summary of Contents for Bernina aurora 435

  • Page 1 Service Manual aurora 435 / 450 and special models Supplement to the Service Manual aurora 430 / 440 and artista 630 / 640 BERNINA International AG Seestrasse 161 8266 Steckborn Switzerland Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc...

  • Page 2: Chapter 1 General Information

    Wait about 30 seconds after removing the plug (capacitor discharge). This service manual for the aurora 435 / 450 is a supplement to the manuals for aurora 430 / 440 (031940.50.04) and the artista 630 / 640 (032069.50.04).

  • Page 3: Warning: Dangerous Voltage Levels

    Warning: Dangerous voltage levels! Caution! The L-Print power circuitry, the S-Print CFL voltage supply and the mains cable all carry dangerous voltages. For your own safety do not touch the L-Print and S-Print until about 30 seconds after the main voltage has been switched off.

  • Page 4: Table Of Contents

    1.6 Where and how to use the service cables # 22..........7 Chapter 2 Description of technical details and electronics ........8 2.1 BERNINA aurora 435 / 450 technical specifications ......... 8 2.2 Block diagram ....................10 2.3 PCBs, plugs and cables .................. 11 2.4 General functions of the PCBs................

  • Page 5: Note On Electrostatic Discharge (Esd)

    1.4 Note on Electrostatic Discharge (ESD) Electrostatic charges are caused by: • a person's walking (influence) over synthetic tilled or carpeted floor • friction between and separation of two insulating materials (triboelectricity) If this static electricity discharges through electronic components, these may be partially or irreparably damaged.

  • Page 6: Tools And Gauges

    1.5 Tools and gauges Required tools and gauges (commercially available, not available from BERNINA): Multimeter, IC-Extraction tool and TORX screw driver sizes: No. 6, 8, 9, 10, 12, 15, 20, and 25. Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc...

  • Page 7: Where And How To Use The Service Cables # 22

    1.6 Where and how to use the service cables # 22 Where to use: • In order to have the aurora 435 / 450 machine under power whilst the covers have been taken off, it is necessary to use the service cables 031 134.50.01 (50mm 30 pole). How to use: 1.

  • Page 8: Chapter 2 Description Of Technical Details And Electronics

    Chapter 2 Description of technical details and electronics 2.1 BERNINA aurora 435 / 450 technical specifications Features aurora 435 / 450 Max. stitch length forward in mm..................5 Increment in mm......................0,15 Max. stitch length reverse in mm..................5 Stitch width in mm ......................9,0 Increment in mm......................
  • Page 9 Features aurora 435 / 450 Selection buttons ....................Rubber pad Screen ................ graphic LCD (Liquid Crystal Display) Size in mm (inch)..................70x40 (2.75x1.57) Screen backlighting ........yes/white CFL (Coldcathode Fluorescent Light) Stitch width bar display....................yes Stitch length bar display ....................yes Integrated service program....................

  • Page 10: Block Diagram

    2.2 Block diagram The electronics of the BERNINA aurora 435 / 450 are primarily accommodated in three main modules (PCBs) – the L-Print (power PCB), the P-Print (positioning PCB) and the S-Print (control via micro- processor). Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc...

  • Page 11: Pcbs, Plugs And Cables

    2.3 PCBs, plugs and cables L-Print 8 poles white S-Print 7 poles Ret-Print L- Print Note: Never connect or disconnect the connecting cables when the machine is powered! P- Print aurora 435 / 450 reverse side Sensors Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc...
  • Page 12 Positioning PCB aurora435 / 450 front side 2 Pole black = Presser-foot position micro switch 4 Pole white = Stitch width stepping motor 4 Pole Red = BSR sensor 4 Pole white = Buttonhole 3 Pole red = Presser foot sensor pressure control 4 Pole yellow = Winder motor...
  • Page 13 Ribbon cable function What to Test What to adjust Desired status Electrical resistance of cable Disconnect mains plug, remove covers and unplug cables from both printed circuits Visual check Check cables for damage, short circuits, and line disconnections Check plug and socket for damage, bent or loose contacts Electronic measurement by Set measuring instrument to...

  • Page 14: General Functions Of The Pcbs

    2.4 General functions of the PCBs The microcomputer on the S-Print receives an analogue signal from the foot control which is converted into a digital signal and reported as a nominal value. The motor r.p.m is adjusted to the required value by comparison of the predetermined and actual values. When the foot control is released (nominal value zero) the microcomputer switches on the electrical brake.
  • Page 15 Universal L-Print (power) The power PCB (L-Print) is installed in the cover at the back of the sewing machine. The circuit components of the L-Print producethe following direct current voltages: • 5 V/DC for the logics on the S-Print • 12 V/DC for the sewing light •...

  • Page 16: Chapter 3 Functional Check And Diagnostic Instructions

    Chapter 3 Functional check and diagnostic instructions 3.1 Functional check A correct functional check must be carried out in order to make an error diagnosis. 1) Visual check: 3) Mechanical checks: Spool holder Remove all covers. Thread guiding parts Cleaning of mechanical parts Needle in general, and needle position Check bevel gears for wear and tear Stitch plate...

  • Page 17: Cleaning

    3.3 Cleaning Attention! Never use alcohol, petrol, spirits or anycorrosive Attention! fluids, or abrasive pastes! Electrostatic charging may occur during cleaning. To Never use alcohol, petrol, prevent this, use antistatic office-equipment cleaning spirits or any corrosive agents. fluids, or abrasive pastes! We use and recommend BASF’s SURFACE CLEAN surface cleaner It forms a protective film against static electricity, and is suitable for both plastic and...

  • Page 18: Sewing-Off With 2 Layers Cottonfabric

    3.4 Sewing-off with 2 layers cottonfabric Sewing-off is a way of checking whether the adjustments made have had the desired effect, and that the machine is functioning correctly The following stitches should be checked in sequence using the appropriate criteria. Straight stitch Buttonhole •...

  • Page 19: Replacing Assemblies Cross Reference To Service Manuals 430/440/640

    Chapter 4 Replacing Assemblies Cross reference to Service Manuals 430/440/640 Serivce Manual Serivce Manual Replacing Assemblies aurora 430 / 440 artista 630 / 640 Removing covers page 20 pt. 4.1 Thread pre-tensioner page 21 pt. 4.2 Vertical spool pin page 22 pt. 4.3 Horizontal spool pin and rear thread-guide eyelet page 22 pt.

  • Page 20: Adjustments Cross Reference To Service Manuals 430/440/640

    Chapter 5 Adjustments Cross reference to Service Manuals 430/440/640 Adjustments Serivce Manual Serivce Manual aurora 430 / 440 artista 630 / 640 Tensioning the drive belt Page 44 Pt. 5.1 Tensioning the base shaft belt Page 44 Pt. 5.2 hook drive belt tension Page 45 Pt.

  • Page 21: Chapter 6 Serviceprogram

    Please note that all tests in number 10 are only available with BSR. Tests in 11 are not implemented! Note: The aurora 435 / 450 uses the same Service Panel as aurora 430 / 440 Art. Nr. 031216.50.00 6.1 Functions of keys on panel 1-12 =...

  • Page 22: Symbols (Letters) Display On Panel

    6.2 Symbols (letters) display on panel Symbols stitch length bar display presser foot, 2 x 7 segments stitch length, 3 x 7 segments stitch width, 2 x 7 segments stitch width bar display needle position bar display Matrix buttonhole alphabets balance servicing cleaning/oiling...

  • Page 23: Starting And Exiting The Basic Program

    6.3 Starting and exiting the basic program To access the servicing program, hold down the 17, 18 and 19 keys while switching the machine on. To exit the servicing program, go to the basic program and switch machine off. To activate the sewing program, switch the machine on again without holding down the 17, 18 and 19 keys.

  • Page 24: Service Tests (Sp - Service Program)

    6.4 Service Tests (SP - Service Program) SP 0 Sensors test in basic program SP 0.1 Functional test of operating voltages & data transfer signals. The voltages and the data transfer signals on the S-Print are displayed by means of LEDs under the service cover B.
  • Page 25 Meaning and function of LEDs What to test: LED 1 / 30V LED 2 / 12V LED 3 / 5V Desired status: Actual status: Lit not Lit not Lit not • Check the wiring for • Check the wiring for •...
  • Page 26 SP 0.2 Foot control functional test What to test: Foot control Desired status: Connect foot control in test basic program Actual status: Activate foot control. The foot control setting is indicated on the stitch length bar display. When the foot control is pushed down at the heel end, the stitch length bar will indicate up to 1.
  • Page 27 SP 0.4 Presser foot pressure functional test What to test: Presser foot pressure regulator Desired status: Test in basic program Actual status: Rotate the presser foot pressure regulator wheel back and forth The position is displayed on the presser foot pressure display (digital bargraph b and p).
  • Page 28 SP 0.5 Presser foot lifter functional test What to test: Presser foot lifter switch Desired status: Test in basic program Actual status: Move presser foot lifter up and down. The presser foot lifter symbol appears when the lifter is up. •...
  • Page 29 SP 0.7 Winder switch functional test What to test: Bobbin winder switch Desired status: Test in basic program Actual status: Activate the bobbin winder switch. The left hand needle position will be activated. • Check switch for continuity Repair note: •...
  • Page 30 SP 0.9 Buttonhole sensor What to test: Functioning of buttonhole sensor Desired status: Test in basic program Actual status: Insert automatic buttonhole foot 3a. Move foot slide back and forth. The needle positions 4 and 5 blink alternatively for the two signals of the buttonhole.
  • Page 31 SP 0.10 P- Print What to test: Functioning of the P-Print light barriers What to adjust: Test in basic program Desired status: Turn the handwheel and compare the data displayed with the chart. Needle positions 7-9 appear depending on the position of the main shaft (see chart). •...

  • Page 32: Sp 1 - 12 Program Tests

    SP 1 - 12 Program tests SP 1.x Stitch patterns What to test: SP 1.1 Functioning of zig-zag and straight stitches SP 1.2 Functioning of the honeycomb stitch SP 1.3 Functioning of the darning stitch SP 1.4 Functioning of the buttonhole stitch SP 1.5 Functioning of the keyhole buttonhole stitch...

  • Page 33: Sp 2 Front Cover

    SP 2 Front cover SP 2.1 Screen What to test: SP 2.1 Functioning of the screen What to adjust: Select respective test in the basic program by pressing key 2 once. Press button 18 to confirm selected test. Press ESC button to exit and return to basic program.

  • Page 34: Sp 3 Stepping Motors

    SP 2.3 Signal tone What to test: SP 2.4 Functioning of the beep signal What to adjust: Select respective test in the basic program by pressing button 2 three times. Press key 18 to activate selected test. The signal tone can be switched off by pressing 19 / ESC key.
  • Page 35 SP 3.2 Stitch width stepping motor What to test: SP 3.2 Stitch width stepping motor What to adjust: Select respective test in the basic program by pressing key 3 twice. Press key 18 to start test. Press OK or ESC button to exit and return to basic program.
  • Page 36 SP 3.3 All stepping motors What to test: SP 3.3 Functioning of the two stepping motors consecutively What to adjust: Select respective test in the basic program by pressing key 3 three times. Press key 18 to confirm selected test. Press OK or ESC button to exit and return to basic program.
  • Page 37 SP 3.4 The stepping motors in basic position What to test: SP 3.4 pinning position of both stepping motors together What to adjust: Select respective test in the basic program by pressing key 3 four times. Press key 18 to activate selected test. Press OK key to exit and return to basic program.

  • Page 38: Sp 4 Stitch Counter

    SP 3.5 Stitch position with stitch width stepping motor SB What to test: SP 3.5 Stitch position in area of stitch plate What to adjust: Select respective test in the basic program by pressing key 3 five times. Press key 18 (toggle) to activate the test. It is important that the needle doesn’t touch the stitch plate at the left and right hand side.

  • Page 39: Sp 5 Hours Meter

    SP 5 Hours meter SP 5.1-6 Number of hours What to test: SP 5.1 Time Power On SP 5.2 Time Standby SP 5.3 Time Working SP 5.4 Time Sewing SP 5.5 Time BSR What to adjust: Depending on the time display required, press key 5 one to six times in the basic program.

  • Page 40: Sp 6 Speed

    SP 6 Speed SP 6.1 Calibration of maximum speed What to test: SP 6.1 Calibration of maximum speed What to adjust: Select respective test in the basic program by pressing key 6 once. Press key 18 to activate selected test. Hold foot control down until 'OK' or 'F' appears in the matrix.
  • Page 41 SP 6.2 Testing of standard speed What to test: SP 6.2 Checking of standard speed i.e 900 s.p.m. What to adjust: Select respective test in the basic program by pressing key 6 twice. Press key 18 to activate selected test. Hold foot control down the speed is displayed.

  • Page 42: Sp 7 Information

    • with the key 24 and 25 is the value by one humiliates • with the key 25 and 26 is the value increased by one • Number 1 = aurora 435 • Number 2 = aurora 450 • Number 3 = aurora 450 (Japan) Servicemanual_aurora_435_450_english_V3_032530.50.04_Korrektur.doc...
  • Page 43 SP 7.3 Serial number What to test: SP 7.3 Display of serial number What to adjust: Press key 7 three times in the basic program. Press key 18 to confirm selected test. 47xx Press OK key to exit and return to basic program.

  • Page 44: Sp 8 Calibration Of Balance

    SP 8 Calibration of balance SP 8.1 Balance zero feed (rough) What to test: SP 8.1 Rough adjustment of balance What to adjust: Make sure that the basic mechanical settings are correct. Press key 8 once in the basic program. Press key 18 to activate selected test.
  • Page 45 SP 8.2 '9' balance (Electronical fine adjustment) SP 8.3 Balance leaf pattern What to test: SP 8.2 - 8.3 Fine adjustment of balance What to adjust: Make sure that the basic mechanical settings are correct. Press button 8 twice in the basic program for the “9”...
  • Page 46 SP 8.4 Buttonhole What to test: SP 8.4 Calibration of buttonhole What to adjust: Make sure that the basic mechanical settings are correct and that the foot is in good working condition. Press key 8 four times in the basic Caution: program.

  • Page 47: Sp 9 Motors

    SP 9 Motors SP 9.1-2 Continuous running in zigzag and honeycomb stitch modes What to test: SP 9.1 Continuous running in zigzag stitch mode SP 9.2 Continuous running in honeycomb stitch mode What to adjust: Depending on the stitch program required, press key 9 once or twice in the basic program.
  • Page 48 SP 9.3 Winder motor What to test: SP 9.3 Functioning of winder motor What to adjust: Press key 9 three times in the basic Program Press key 18 to confirm selected test. Continuous running can be started or stopped with each further pressing of key Press OK key to exit and return to basic program.

  • Page 49: Sp 10 Bsr Bernina Stitch Regulator

    SP 10 BSR Bernina Stitch Regulator SP 10.1 BSR sensors What to test: SP 10.1 BSR sensors Attach BSR foot Select respective test in the basic program by pressing key 10 once. Press key 18 to confirm selected test. What to adjust: Place fabric under presser foot and move it in different directions.
  • Page 50 SP 10.3 BSR information - frame number What to test: SP 10.3 Display of BSR frame number Attach BSR foot Press key 10 three times in the basic program. What to adjust: Press key 18 to confirm selected test. Press OK key to exit and return to basic program.
  • Page 51 SP 10.5 BSR Information – software version What to test: SP 10.5 Display of installed version Attach BSR foot Press key 10 five times in the basic program. What to adjust: Press key 18 to confirm selected test. Press OK key to exit and return to basic program.
  • Page 52 SP 10.6 BSR Information – boot loader version What to test: SP 10.6 Display of installed version Attach BSR foot Press key 10 six times in the basic program. What to adjust: Press key 18 to confirm selected test. Press OK key to exit and return to basic program.

  • Page 53: Sp 12 Information

    SP 12 Information SP 12.1-4 Various service functions What to test: The selected stitch program is displayed SP 12.1 Maintenance counter SP 12.2 Resetting maintenance counter SP 12.3 Service counter SP 12.4 Resetting service counter What to adjust: Depending on the counter required, press key 12 one to four times in the basic program.
  • Page 54 SP 12.1-2 Cleaning interval Displayed: 180,000 stitches = sewing stitches + (embroidery stitches/2) (a200 principle). The stitch counter (up-counter) triggers a flashing symbol on the display as a reminder to the user. The counter is reset if the user confirms the message by pressing OK twice (refer to Instruction manual page 58) The message is cleared by pressing ESC but it will reappear the next time the machine is switched on unless acknowledged by pressing OK before that.

  • Page 55: Chapter 7 Firmware Update

    Firmware update • Firmware update with BAMS V2 (BERNINA aurora Maintenance Software). • The BAMS manual is integrated in the help function. • Update files are published in the http://infogate.bernina.com or in the intranet from the country organisation. Chapter 8...

This manual is also suitable for:

Aurora 450Artista 630Artista 640

Table of Contents