Motus M770EL Service Manual

M770E, M770EL Elliptical CrossTrainer SERVICE MANUAL This service manual is for use by Motus trained service providers only. If you are n

9to LCD Overlay Bezel Assembly. z replace Power Adapter. If LED is on, z tighten midpoint (LCD Power Supply side) & endpoint (A/D Board side)

10 Motus Elliptical Cross Trainers M770E and M770EL SECTION II HOW TO REPLACE & REPAIR GUIDE General 2.1 How to Replace the REAR COVER 2.2 How

112.1 How to Replace the REAR COVER The procedures to replace the REAR COVER are commonly applied when the replacements below are done. z How to

121) The following tools are required. Philips Screw Driver, Wrench Sets, Snap Ring Pliers 2) Remove two BUTTON CROSS BOLT (134) securing left REAR C

132.2 How to Adjust the Drive Belt (or Pulley Belt) Tension 1) Loosen two HEX LOCK NUTs (11) a little using 17mm spanner. 2) To increase the tension

14procedures as 4) thru 8). 10) Remove the PULLEY (19) combined with the Shaft by taking it out toward the front of the Machine. 11) Remove the PULLE

152.5 How to Replace the UNIT BEARING – UCF206 The procedure to replace the Bearing is same on both right side and left side. 1) Loosen two HEX LOCK

162.6 How to Replace the CRANK ASSEMBLY 1) Loosen two HEX LOCK NUTs (11) a little using 17mm spanner. 2) To loosen the PULLEY BELT (22), turn HEX NU

172.7 How to Disassemble the PEDAL BASE, LOW JOINT CAP or HANDLE PIVOT JOINT CAP 2.7.1 How to Disassemble the PEDAL BASE 1) Remove the plastic PEDAL

18out of the engaged HANDLE PIVOT JOINT CAP-T (141) and HANDLE PIVOT JOINT CAP-B (142). 2) Remove the HANDLE PIVOT JOINT CAP-T (141) and HANDLE PIVOT

1 Motus Elliptical Cross Trainers M770E and M770EL Table of Contents SECTION I TROUBLESHOOTING GUIDE SECTION II HOW TO REPLACE & REPAIR GUI

192.9 How to Replace the OILLESS BUSH inside the COUPLER FRAME 1) Disassemble the plastic PEDAL BASE. See “2.7.1 How to Disassemble PEDAL BASE” 2) Lo

202.10 How to Replace the PEDAL SHAFT 1) Disassemble the plastic PEDAL BASE. See “2.7.1 How to Disassemble PEDAL BASE” 2) Loosen the upper PEDAL SHAF

217) Remove the HANDLE CRANK FRAME (94) from the AXIS toward the longitudinal direction of the AXIS (960) and keep the PLANE WAHSER (95) in position

22 Motus Elliptical Cross Trainers M770E and M770EL SECTION III HOW TO REPLACE & REPAIR GUIDE Electronic PCB 3.1 How to Replace the LCD Screen

233.1 How to Replace the LCD Screen in Model M770EL Fig 3a CONSOLE & POST

24 Fig 3b CONSOLE

25Do the steps below while referring to Fig 3a CONSOLE & POST, Fig 3b CONSOLE and Section 4 ELECTRONIC PCB, CONNECTOR AND CABLE OVERVIEW. 1) Tur

263.2 How to Replace the A/D Board in Model M770EL Do the steps below while referring to Fig 3a CONSOLE & POST, Fig 3b CONSOLE and Section 4 ELEC

273.3 How to Replace the MPU Board in Model M770EL Do the steps below while referring to Fig 3a CONSOLE & POST, Fig 3b CONSOLE and Section 4 ELEC

283.4 How to Replace the MPU Board in Model M770E Do the steps below while referring to Fig 3a CONSOLE & POST, Fig 3b CONSOLE and Section 4 ELECT

2 Motus Elliptical Cross Trainers M770E and M770EL SECTION I TROUBLESHOOTING GUIDE 1.1 System Block Diagram 1.2 Troubleshooting Guide 1.3 Troublesh

293.5 How to Replace the OPERATION BUTTON Board Do the steps below while referring to Fig 3a CONSOLE & POST, Fig 3b CONSOLE and Section 4 ELECTRO

303.6 How to Replace the LAMP INVERTER Board in Model M770EL Do the steps below while referring to Fig 3a CONSOLE & POST, Fig 3b CONSOLE and Sect

313.7 How to Replace the Program BUTTON Board, OSD BUTTON Board & AUDIO INTERFACE & DOWNLOAD Board in Model M770EL Do the steps below while r

327) Install new AUDIO INTERFACE & DOWNLOAD Board (24) in reverse order.

333.8 How to Replace the DRIVE Board 1) Disconnect three cables from the DRIVE PCB (31). 2) Remove the DRIVE PCB (31) by loosening four BUTTON CROSS

343.10 How to Replace the SMPS-5V (or MPU POWER SUPPLY) in M770EL Applicable to old version before Nov., 2007 1) Turn off the unit power at switch an

3510) Disconnect all of cables from the SMPS (116). 11) Remove four Screws (117) securing the SMPS (116) to the SMPS-BRK (113). 12) Install new SMPS

363.11 How to Replace the LCD POWER ADAPTER (or LCD Power Supply) Applicable to old version before Nov., 2007 1) Turn off the unit power at switch an

3710) Remove twelve Button Screws (75) securing the Front Inner Cover (118,119) and then remove the Front Inner Cover (118,119) from the unit. 11) D

38 Motus Elliptical Cross Trainers M770E and M770EL SECTION IV ELECTRONIC PCB, CONNECTOR AND CABLE OVERVIEW 4.1 Cable Connection Block Diagram 4.

31.1 System Block Diagram Note: Dotted line is applied to M770EL/M770E Membrane Overlay Key Contact HR/Wireless HR PCB MPU PCB (

394.1 Cable Connection Block Diagram 1) MPU PCB on M770EL MPU_FRONT (Display), MPU_BACK (MAIN)

402) MPU PCB on M770E

413) A/D BOARD on M770EL

424) POWER BOARD 4-1) M770EL (DRIVE Board, SMPS-5V, LCD POWER ADAPTER) 4-2) M770E (DRIVE Board)

434.2 Electronic PCB, Connector and Pin Description 1) MPU PCB, M770EL 1-1) MPU_BACK (or MPU_Main) Connector Location Pin Pin Name Functional De

44 Connector Location Pin Pin Name Functional Description 1 Signal 1 Sensor Plate signal 1 CN 4, CN 13 : Contact Heart Rate Sensor 2 Signal

45Connector Location Pin Pin Name Functional Description 1 B4 Data In 4 2 B3 Data In 3 3 B2 Data In 2 4 B1 Data In 1 5 Q6 Data Output 6

46 Connector Location Pin Pin Name Functional Description 1 VCC Vcc 2 VCC Vcc 3 VCC Vcc 4 CS0 Chip Select 0 5 CS1 Chip Select 1 6 CS3 Chip S

471-2) MPU_FRONT ( or MPU_DISPLAY) Connector Location Pin Pin Name Functional Description 1 VCC Vcc 2 VCC Vcc 3 VCC Vcc 4 CS0 Chip Select 0 5

482) MPU PCB, M770E Connector Location Pin Pin Name Functional Description 1 VCC Drive VCC 7.5V 2 GND Ground 3 VCC Drive VCC 7.5V 4 NC No Co

41.2 Troubleshooting Guide SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Line voltage is not present at equipment. Check the main circuit breaker and wa

49 Connector Location Pin Pin Name Functional Description 1 VCC Not used 2 TXD_PC Not used 3 RXD_PC Not used CN 2 : Reserved Port (RS-232) 4

50 Connector Location Pin Pin Name Functional Description 1 T232/PDO Program Data Output 2 VCC +5V 3 SCK Serial Clock 4 R232/PDI Program Data In

51 Connector Location Pin Pin Name Functional Description 1 VCC Not used 2 STEP Not used CN 13 : Step Sensor 3 GND Not used 1 B+VCC Not used 2

523) Operation Button Board Connector Location Pin Pin Name Functional Description 1 GND Ground 2 GND Ground 3 START/STOP Start/Stop Key 4 UP

535) A/D Board Connector Location Pin Pin Name Functional Description 1 Audio Left Audio Left 2 GND Ground 3 Audio Right Audio Right CN 1 : A

54Connector Location Pin Pin Name Functional Description 1 VCC DC 12V/3.5A Vcc 2 VCC DC 12V/3.5A Vcc 3 VCC DC 12V/3.5A Vcc 4 GND Ground 5 GN

55Connector Location Pin Pin Name Functional Description 1 Vcc Power for LCD panel 2 Vcc Power for LCD panel 3 Vcc Power for LCD panel 4 NC

566) LAMP Inverter Board 6-1) Lamp Inverter Board for two-lamp LCD screen Connector Location Pin Pin Name Functional Description 1 VCC DC 12V/

576-2) Lamp Inverter Board for one-lamp LCD screen Connector Location Pin Pin Name Functional Description 1 GND Ground 2 CTRL Adjustment for B

587) OSD Button Board Connector Location Pin Pin Name Functional Description 1 NC No Connection 2 KEY1 Key 1 Output (Volume_up, Channel_down, Ch

5SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Faulty Battery, Note: Battery is used only for M770E, self-powered model. Verify that Battery voltage is

59RCA-6A YELLOW Video Input

609) Audio Interface & Download Board Connector Location Pin Pin Name Functional Description 1 Audio_L Stereo Left 2 Audio_R Stereo Right CN

6110) Drive Board Connector Location Pin Pin Name Functional Description 1 U-phase input Voltage Source to Drive Board 2 V-phase input Voltag

624.3 Cables & Connectors Cable No. Start Board Connec- tor No. End Board Connector No. Wire Length [mm] Housing RemarkCB1+CB2+CB3 CN1 Driver B

63 Cable No. Start Board Connector No. End Board Connector No. Wire Length [mm] Housing RemarkCB24+CB24 Adaptor - AD Board CN3 2200 CB25+CB28 -

644.4 Cable Diagram Cable No. Cable Name Cable Spec CB1 Main Cable (Top) CB2 Main Cable (Middle) CB3 Main Cable(Bottom) CB4 Battery Cable(Top) CB

65 Cable No. Cable Name Cable Spec CB11 POLAR Cable CB12 Tact Switch (Operation) Cable CB13 Moving Handle Touch HR Left Cable (Top) CB15 Moving H

66 Cable No. Cable Name Cable Spec CB24 SMPS 12V Cable (TOP) CB25 RCA Cable (Bottom) CB28 RCA Cable (TOP) CB29 Coaxial Cable (NTSC-TOP) CB26-2

67 Ver 0.1, Oct., 2007 ⓒ Motus Co., Ltd. All Rights reserved. Unauthorized Reproduction and Distribution Prohibited

68

6SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Malfunction Overlay, Button Switch or Operation Button board Replace Overlay, Button Switch or Operation

7 SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Electromagnetic interference from television sets, cell phones, refrigerator, or motor driven exercise e

81.3 Troubleshooting Guide for LCD Symptom/Condition PROBABLE CAUSE CORRECTIVE ACTION Air/cable setting is not correct Follow the set up procedures i