CYBEX Arc Trainer 750A Service Manual
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CYBEX Arc Trainer 750A Service Manual

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Cybex Arc Trainer
750A/750AT
Service Manual
Cardiovascular Systems
Part Number 750A-901 E
www.cybexinternational.com

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  • Page 1 ® Cybex Arc Trainer 750A/750AT Service Manual Cardiovascular Systems Part Number 750A-901 E www.cybexinternational.com...
  • Page 3 DISCLAIMER: Cybex International, Inc. makes no representations or warranties regarding the contents of this manual. We reserve the right to revise this document at any time or to make changes to the product described within it without notice or obligation to notify any person of such revisions or changes.

  • Page 5: Table Of Contents

    Cybex Arc Trainer 750A/750AT Service Manual Table of Contents Front Pages FCC Compliance Information ..iii 1 Safety Grounding and Voltage Information ..1-1 Important Safety Instructions ..1-2 Warning and Caution Decals .

  • Page 7: Fcc Compliance Information

    Cybex Arc Trainer 750A/750AT Service Manual FCC Compliance Information WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment! This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.

  • Page 9: Safety

    If unit malfunctions, grounding provides path of least resistance for electric current to reduce risk of electric shock. Cybex is not responsible for injuries or damages as a result of cord or plug modifi cation. Verify voltage requirements of unit match local voltage requirements.

  • Page 10: Important Safety Instructions

    Cybex 750A/750AT Arc Trainer ® Service Manual Important Safety Instructions (Save These Instructions) DANGER: To reduce the risk of electrical shock, always unplug unit from electrical outlet immediately after use and before cleaning. WARNING: Serious injury could occur if these listed precautions are not observed. Follow precautions to reduce the risk of burns, fi...
  • Page 11 Keep a repair log of all maintenance activities. Disconnect the optional power adapter before servicing unit. Do not use attachments unless recommended for the unit by Cybex. The unit may generate electromagnetic or other forms of interference, or it may be affected by interference from other equipment nearby.

  • Page 12: Warning And Caution Decals

    Service Manual Unit with A/V Options Devices connected to Cybex equipment must comply with appropriate safety standards. This includes but not limited to: UL 1647 and EN 60335-1. There must be adequate mechanical mounting of the device in all combinations (confi gurations).
  • Page 13 Cybex 750A/750AT Arc Trainer ® Service Manual WARNING SERIOUS INJURY COULD OCCUR IF THESE PRECAUTIONS ARE NOT OBSERVED 1. Obtain a medical exam before beginning any exercise program. 4. Obtain instruction before using. Lisez les instructions avant l'utilisation. 10. DO NOT wear loose or dangling clothing while using.
  • Page 14 Cybex 750A/750AT Arc Trainer ® Service Manual Warning decal part number DE-17155-4 NOTE: Decal on inside of cover. Warning decal part number - 750A-329-4 Safety Page 1-6...

  • Page 15: Csafe Ports

    Cybex 750A/750AT Arc Trainer ® Service Manual CSAFE Port The CSAFE standard defi nes a communication protocol and low-voltage DC power source specifi c to the Fitness Equipment Industry. These RJ-45 phone jacks are provided for use ONLY within the CSAFE protocol.
  • Page 16 Cybex 750A/750AT Arc Trainer ® Service Manual This page intentionally left blank. Safety Page 1-8...

  • Page 17: Preventive Maintenance

    Cybex Arc Trainer 750A/750AT Service Manual 2 - Preventive Maintenance Warnings Read all warnings in this chapter and in Chapter 1 — Safety. Observe the following warnings and cautions: All maintenance activities shall be performed by qualifi ed personnel. Failure to do so could result in serious injury.

  • Page 18: Preventive Maintenance Activities

    NOTE: Cybex is not responsible for performing regular inspection and maintenance actions of this unit. Instruct all personnel in equipment, inspection and maintenance. Require all personnel to report and record all accidents.

  • Page 19: Drive Belts

    Cybex Arc Trainer 750A/750AT Service Manual Drive Belts There are two drive belts that may become loose, worn or cracked. Unless the belts have been removed and not replaced properly, it is unlikely the belts will come loose or need to be retensioned. See Figure 2.

  • Page 20: Statistics

    Cybex Arc Trainer 750A/750AT Service Manual Every 5000 Miles (8000 KM) Check drive belts for tension and wear. (See procedure First 500 Miles) Move unit and vacuum underneath. Lift the rear of unit and roll it back from its present position.

  • Page 21: Rechargeable Battery

    Cybex Arc Trainer 750A/750AT Service Manual Rechargeable Battery The unit is designed with a 12 volt Lead-Acid rechargeable battery. The battery will recharge during regular operation of unit or when the optional power adapter is plugged in. The display will indicate dashes in the incline display if the battery fails to provide enough energy. The unit will still function normally other than the disabling of the incline feature.
  • Page 22 Cybex Arc Trainer 750A/750AT Service Manual This page intentionally left blank Maintenance Page 2-6...

  • Page 23: Customer Service

    Hours of phone service are Monday through Friday from 8:30 a.m. to 6:00 p.m. Eastern Standard Time. For Cybex customers living in the USA, contact Cybex Customer Service at 888-462-9239. For Cybex customers living outside the USA, contact Cybex Customer Service at 508-533-4300 or fax 508-533-5183.

  • Page 24: Ordering Parts

    NOTE: All inspections and repairs must be performed by trained service personnel only. Cybex will void warranty if non-Cybex replacement parts are used. Servicing of Double-Insulated Products In a double-insulated product, two systems of insulation are provided instead of grounding. No grounding means is provided on a double-insulated product, nor should a means for grounding be added to the product.

  • Page 25: Damaged Parts

    Figure 1. The serial number begins with a letter, for example: R09-101331100. 4. At Cybex’s discretion, the technician may request that the problem part(s) be returned to Cybex for evaluation and repair or replacement. The technician will assign an RMA number and will send an ARS label.
  • Page 26 Cybex 750A/750AT Service Manual This page intentionally left blank Customer Service 3–4...

  • Page 27: Service

    All maintenance activities shall be performed by qualified personnel. Failure to do so could result in serious injury. Disconnect the power cord before servicing unit if using Cybex AC power adapter. Keep wet items away from inside parts of the unit. Electrical shock could occur even if the unit is unplugged.

  • Page 28: Display Console

    Cybex 750A/750AT Arc Trainer Service Manual Display Console Bar Graph Heart Rate Indicator Text Area Data Readouts CAL / HR DISTANCE STRIDES PER MIN CALORIES WATTS METs BPM Resistance Key Pad Time/Incline Figure 1 Audio Visual (AV) Key Pad – Optional...

  • Page 29: Service Diagnostics

    Cybex 750A/750AT Arc Trainer Service Manual Service Diagnostics Service diagnostics allows testing, monitoring or altering of unit controls and performance. Open service diagnostics from Count Down, Lock, ID Entry or Dormant modes. While striding press PAUSE/END key to exit. NOTE: Striding must continue throughout this procedure. If striding is stopped, this procedure must be restarted.
  • Page 30 Cybex 750A/750AT Arc Trainer Service Manual DRIVE DIAGNOSTICS Enter Drive Diagnostics by holding the ENTER key for 3 seconds while in Static I/0 test. This creates a diagnostics screen for controlling and viewing lower controller values. Text Area shows “DRIVE DIAGNOSTICS”.
  • Page 31 Cybex 750A/750AT Arc Trainer Service Manual Press ENTER to move forward to Load Calibration. Load Calibration The load or brake contribution must be calibrated due to the variations in the mechanical construction of the brake and the Arc engine assembly.

  • Page 32: Error Codes

    Cybex 750A/750AT Arc Trainer Service Manual Microprocessor Temperature The internal measured temperature in C of the lower control board (LCB) microprocessor. Temperature in 1 degree C from 0 - 125. Code Version The “LCB CODE VX.XX” is displayed to show the LCB’s fi rmware.

  • Page 33: Trouble Shooting/Error Codes

    Cybex 750A/750AT Arc Trainer Service Manual Trouble Shooting/Error Codes Trouble shoot error codes using the fl owcharts in this section. Individual instruction sheets are included with replacement part orders. Service Page 4-7...
  • Page 34 Cybex 750A/750AT Arc Trainer Service Manual ERROR 4 - LCB IGNORED SHUTDOWN Note ERROR 4 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity, and reseat data cable connections. Is the data Replace Data Cable...
  • Page 35 Cybex 750A/750AT Arc Trainer Service Manual ERROR 5 - DRIVE COMMUNICATION LOST Note ERROR 5 present in log. Restart unit. Does the error reoccur after restart? Check Battery voltage verify that the voltage is above 12.5 V Charge or replace...
  • Page 36 Cybex 750A/750AT Arc Trainer Service Manual ERROR 8 - APPROCHING OVER TEMPERATURE Note ERROR 8 present in log. Restart unit. Does the error reoccur after restart? Remove front cover. clear any dust/debris from brake/generator and lower controller board Restart Unit. does...
  • Page 37 Cybex 750A/750AT Arc Trainer Service Manual ERROR 9 - DISPLAY WATCHDOG TRIGGERED Note ERROR 9 present in log. Restart unit. Does the error reoccur after restart? Check data cable for continuity and damage reseat all connections on cable Did the data cable check out OK? Replace data cable.
  • Page 38 Cybex 750A/750AT Arc Trainer Service Manual ERROR 22 - POWER SUPPLY IRREGULARITY - GENERATOR POWER NO SPEED SIGNAL Note ERROR 22 present in log. Restart unit. Does the error reoccur after restart? Check all 3 legs of generator for correct ohm reading,(26.5 ohms) and...
  • Page 39 Cybex 750A/750AT Arc Trainer Service Manual ERROR 23 - POWER SUPPLY IRREGULARITY - SPEED SIGNAL BUT NO GENERATOR POWER - FATAL Note OUT OF ORDER condition,ERROR 23 present in log. Restart unit. Does the error reoccur after restart? Check all 3 legs of generator for correct ohm reading,(26.5 ohms) and...
  • Page 40 Cybex 750A/750AT Arc Trainer Service Manual ERROR 24 - INCLINE MOVING TOO SLOWLY Note ERROR 24 present in log. Restart unit. Does the error reoccur after restart? Check battery voltage in diagnostic mode. Voltage needs to be above 12.5 VDC in order for incline to...
  • Page 41 Cybex 750A/750AT Arc Trainer Service Manual ERROR 25 - INCLINE MOVEMENT FEEDBACK STOPPED Note dashes in incline window and no response from incline. ERROR 25 present in log. Restart unit. Does the error reoccur after restart? Check battery voltage in diagnostic mode.
  • Page 42 Cybex 750A/750AT Arc Trainer Service Manual ERROR 26 - INCLINE DISABLED Note dashes in incline window and no response from incline. ERROR 26 present in log. Restart unit. Does the error reoccur after restart? Check battery voltage in diagnostic mode. Voltage needs to be above 12.5...
  • Page 43 Cybex 750A/750AT Arc Trainer Service Manual ERROR 27 - LOW BATTERY Note ERROR 27 present in log. Restart unit. Does the error reoccur after restart? Check battery voltage in diagnostic mode. Voltage needs to be above 12.5 VDC in order for incline to...
  • Page 44 Cybex 750A/750AT Arc Trainer Service Manual ERROR 29 - CONTROLLER WATCHDOG TRIGGERED Note ERROR 29 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable. Replace lower controller board.
  • Page 45 Cybex 750A/750AT Arc Trainer Service Manual ERROR 29 - CONTROLLER WATCHDOG TRIGGERED Note ERROR 29 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable. Replace lower controller board.
  • Page 46 Cybex 750A/750AT Arc Trainer Service Manual ERROR 30 - DEAD BATTERY Note disabled fan and incline. ERROR 30 present in log. Restart unit. Does the error reoccur after restart? Check Battery voltage in diagnostic mode. Sshould be above 12.5 VDC...
  • Page 47 Cybex 750A/750AT Arc Trainer Service Manual ERROR 31 - EEPROM WRITE FAILURE Note ERROR 31 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable. Replace lower controller board.
  • Page 48 Cybex 750A/750AT Arc Trainer Service Manual ERROR 32 - UART FAILURE Note ERROR 32 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable. Replace lower controller board.
  • Page 49 Cybex 750A/750AT Arc Trainer Service Manual ERROR 33- PACKET ERROR Note ERROR 33 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable. Check for external source of ESD that can interfere with data transfer.
  • Page 50 Cybex 750A/750AT Arc Trainer Service Manual ERROR 34 - COMM WATCHDOG TRIGGERED Note ERROR 34 present in log. Restart unit. Does the error reoccur after restart? Check data cable for continuity and damage reseat all connections on cable. Did the data cable check out OK? Replace data cable.
  • Page 51 Cybex 750A/750AT Arc Trainer Service Manual ERROR 35 - LCB LATCHED ON - CAN'T SHUT DOWN Note ERROR 35 present in log. Restart unit. Does the error reoccur after restart? Replace lower controller board. Completed. Service Page 4-25...
  • Page 52 Cybex 750A/750AT Arc Trainer Service Manual ERROR 36 - LIBRARY FAULT Note ERROR 36 present in log. clear error log and restart unit. Does the error reoccur after restart? Check data cable for continuity and damage reseat all connections on...
  • Page 53 Cybex 750A/750AT Arc Trainer Service Manual ERROR 37 - INCLINE OUT OF RANGE Note dashes in incline window and no response from incline. ERROR 37 present in log. Restart unit. Does the error reoccur after restart? Check battery voltage in diagnostic mode.
  • Page 54 Cybex 750A/750AT Arc Trainer Service Manual ERROR 38 - INCLINE TIMEOUT Note dashes in incline window and no response from incline. ERROR 38 present in log. Restart unit. Does the error reoccur after restart? Check battery voltage in diagnostic mode. Voltage needs to be above 12.5...
  • Page 55 Cybex 750A/750AT Arc Trainer Service Manual ERROR 39 - UART RX BUFFER OVER-RUN Note ERROR 39 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Does the data cable Replace data cable.
  • Page 56 Cybex 750A/750AT Arc Trainer Service Manual ERROR 40 - UART TX BUFFER OVER-RUN Note ERROR 40 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Does the data cable Replace data cable.
  • Page 57 Cybex 750A/750AT Arc Trainer Service Manual ERROR 41- DATA TRANSMISSION FAULT - RECIEVE PACKET / BUFFER OVERFLOW Note ERROR 41 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable.
  • Page 58 Cybex 750A/750AT Arc Trainer Service Manual ERROR 42- DATA TRANSMISSION FAULT - RECIEVE PACKET / CRC MISMATCH Note ERROR 42 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable.
  • Page 59 Cybex 750A/750AT Arc Trainer Service Manual ERROR 43- DATA TRANSMISSION FAULT - RECIEVE PACKET / SIZE MISMATCH Note ERROR 43 present in log. Restart unit. Does the error reoccur after restart? Check data cable continuity and connections. Is the data cable Replace data cable.
  • Page 60 Cybex 750A/750AT Arc Trainer Service Manual 750A/750AT Parts List ITEM PART NO. DESCRIPTION ITEM PART NO. DESCRIPTION HM582514 SCREW, PAN HEAD PHILPIPS 10-32 X 600A-311 SPACER, FLANGE .62 BLK 600A-362 LABEL, BIOSIG PATENT HN624901 LOCKNUT, .250-20 NYLON BLK ZN 610A-351...
  • Page 61 Cybex 750A/750AT Arc Trainer Service Manual ITEM PART NO. DESCRIPTION A105 750A-202 FRONT FOOT PLATE ARM LH A106 750A-203 FRONT FOOT PLATE ARM RH A107 750A-459 DECAL, THE ARC (BLACK) A107 750A-460 DECAL, THE ARC (SILVER) A108 HH701226 BOLT, HHCS GRADE 8, .375-16 X 2.0...
  • Page 62 Cybex 750A/750AT Arc Trainer Service Manual Service Page 4–36...
  • Page 63 Cybex 750A/750AT Arc Trainer Service Manual Service Page 4–37...
  • Page 64 Cybex 750A/750AT Arc Trainer Service Manual 750A/750AT SHROUD ASSEMBLY RIGHT SIDE DETAIL 750A/750AT SHROUD ASSEMBLY LEFT SIDE DETAIL Service Page 4–38...
  • Page 65 Cybex 750A/750AT Arc Trainer Service Manual 750A/750AT COVER ASSEMBLY DETAIL A101 750A/750AT MOTOR ACCESS COVER ASSEMBLY DETAIL Service Page 4–39...
  • Page 66 Cybex 750A/750AT Arc Trainer Service Manual 750A LEFT SIDE ARM ASSEMBLY DETAIL TORQUE SPEC 250 IN/IBS MIN A105 A80 A84 TORQUE SPEC 90 IN/IBS MINIMUM Service Page 4–40...
  • Page 67 Cybex 750A/750AT Arc Trainer Service Manual 750A RIGHT SIDE ARM ASSEMBLY DETAIL TORQUE SPEC 250 IN/IBS MIN TORQUE SPEC 90 IN/IBS MINIMUM A106 Service Page 4–41...
  • Page 68 Cybex 750A/750AT Arc Trainer Service Manual 750AT LEFT SIDE ARM ASSEMBLY DETAIL TORQUE SPEC 250 IN/IBS MIN TORQUE SPEC 90 IN/IBS MINIMUM Service Page 4–42...
  • Page 69 Cybex 750A/750AT Arc Trainer Service Manual 750AT RIGHT SIDE ARM ASSEMBLY DETAIL TORQUE SPEC 250 IN/IBS MIN A104 TORQUE SPEC 90 IN/IBS MINIMUM Service Page 4–43...
  • Page 70 Cybex 750A/750AT Arc Trainer Service Manual 750A HANDLE ASSEMBLY Service Page 4–44...
  • Page 71 Cybex 750A/750AT Arc Trainer Service Manual 750AT HANDLE ASSEMBLY A64 A84 A104 Service Page 4–45...
  • Page 72 Cybex 750A/750AT Arc Trainer Service Manual 750A/750AT FOOT PLATE ASSEMBLY Service Page 4–46...
  • Page 73 Cybex 750A/750AT Arc Trainer Service Manual Service Page 4–47...
  • Page 74 Cybex 750A/750AT Arc Trainer Service Manual Service Page 4–48...
  • Page 75 Cybex 750A/750AT Arc Trainer Service Manual Service Page 4–49...
  • Page 76 Cybex 750A/750AT Arc Trainer Service Manual Service Page 4–50...
  • Page 77 Cybex 750A/750AT Arc Trainer Service Manual 750AT Left Hand Assembly – Part Number 750AT-117 ITEM NO. QTY. PART NUMBER DESCRIPTION 610A-350 END CAP 610A-356 TUBE, SPACER 750A-388 GRIP, RUBBER AW-18286 CABLE, 610A, CHR GRIP FB030232 BEARING, RADIAL 17 mm EXTENDED RACE FC030006 TOLERANCE RING 1.575 ID...
  • Page 78 Cybex 750A/750AT Arc Trainer Service Manual 750AT Right Hand Assembly – Part Number 750AT-118 ITEM NO. QTY. PART NUMBER DESCRIPTION 610A-350 END CAP 610A-356 TUBE, SPACER 750A-388 GRIP, RUBBER AW-18286 CABLE, 610A, CHR GRIP FB030232 BEARING, RADIAL 17 mm EXTENDED RACE FC030006 TOLERANCE RING 1.575 ID...
  • Page 79 Cybex 750A/750AT Arc Trainer Service Manual Left and Right Linkage Assembly Part Numbers 750A-115 and 750A-116 ITEM NO. QTY. PART NUMBER DESCRIPTION FB030244 BEARING, RADIAL BALL. .50 ID X 1.688 OD FC030004 TOLERANCE RING 42 (1.653) ID HX-17143 RING RETAINING, INTERNAL, .500-168...
  • Page 80 Cybex 750A/750AT Arc Trainer Service Manual 750AT Left and Right Foot Plate Arm Assembly Part Number 750AT-112 and 750AT-113 ITEM NO. QTY. PART NUMBER DESCRIPTION BR030225 RETAINING RING 1.438 INTERNAL FB030248 BEARING, SPHERICAL 15MM FC030005 TOLERANCE RING 1.378 ID NOTE: Part numbers 750A-112 or 750A-113 are for entire assemblies.
  • Page 81 Cybex 750A/750AT Arc Trainer Service Manual DIGITAL PEM MONITOR OPTION ITEM NO. QTY. PART NUMBER DESCRIPTION CP-21072 MONITOR, 13.3” ATSC NTSC PEM CP-21073 MONITOR, 13.3” DVB-T PEM CP-21632 REMOTE CONTROL, ATSC CP-21531 REMOTE CONTROL, DVB-T 750A-217 W AV CONSOLE SMALL...

  • Page 83: Schematic

    750A/750AT SCHEMATIC EC-18267 AW-21857 CABLE, DC EXTENSION BATTERY, 12V / 7AHR EW600000 (AW-14007) POWER CORD, 115V/60Hz EW600005 (WR-14012) POWER CORD, 230V/50Hz TR-20203 SUPPLY, PEM 2.1mm STD. AW-19521 (AW-21539) POWER CORD, UK IEC-320 230V TR-21265 SUPPLY, PEM 2.1mm LOCKING AW-19587 (AW-21540) POWER CORD, JAPAN IEC-320 100v 100-240VAC POSITION AW-22235 (AW-22229) POWER CORD, 10A IEC-320 DENMARK...
  • Page 86 10 Trotter Drive Medway, MA 02053 • 508-533-4300 • FAX 508-533-5183 www.cybexinternational.com • techhelp@cybexintl.com...

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