Matrix S3X-02 Service Manual
  1. Manuals
  2. Brands
  3. Matrix Manuals
  4. Stepper Machine
  5. S3X-02
  6. Service manual

Matrix S3X-02 Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
S 3 X - 0 2 S T E P P E R
S E R V I C E M A N U A L

Advertisement

Table of Contents
loading

Related Manuals for Matrix S3X-02

Summary of Contents for Matrix S3X-02

  • Page 1 S 3 X - 0 2 S T E P P E R S E R V I C E M A N U A L...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1: SERIAL NUMBER LOCATION ..............CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS Before Getting Started ....................3 Read and Save These Instructions ................3 Electrical Requirements ..................... 4 CHAPTER 3: PREVENTATIVE MAINTENANCE Recommended Cleaning Tips ................... 5 Check for Damaged Parts ..................5 Care and Maintenance Instructions ................
  • Page 3 TABLE OF CONTENTS Upper Stationary Handlebar Replacement ..............28 Lower Stationary Handlebar Replacement ..............29 Rear Stabilizer Cover Replacement ................30 9.10 Rear Stabilizer Replacement ..................31 9.11 Shrouds Replacement ....................32 9.12 Lower Control Board Replacement ................33 9.13 Generator Belt Replacement..................

  • Page 4: Chapter 1: Serial Number Location

    CHAPTER 1: SERIAL NUMBER LOCATION 1.1 SERIAL NUMBER LOCATION A serial number plate is located below the bottom of the console mast beneath a rubber boot. There is also a serial number tag on the middle of the main frame pointed towards the floor.

  • Page 5: Chapter 2: Important Safety Instructions

    * Never drop or insert objects into any opening. Keep hands away from moving parts. If the item cannot be reached, contact a Matrix Please do not place the Matrix S3x-02 Stepper in an area of high authorized dealer for assistance.

  • Page 6: Electrical Requirements

    2.3 ELECTRICAL REQUIREMENTS The Matrix 3x Series Stepper is designed to be self powered, but a minimum of usage must be maintained to keep the battery charged (approximately 6 hours a day). NOTE: If an add on TV (using a bracket) is added to the unit, it must be plugged in, or the TV will not operate correctly.

  • Page 7: Chapter 3: Preventative Maintenance

    Matrix Fitness Systems will provide service and maintenance training at our corporate facility upon * Wipe the pedals, console, heart rate grips, and the handlebar clean after request or in the field if proper arrangements are made.

  • Page 8: Care And Maintenance Instructions

    3.3 CARE AND MAINTENANCE INSTRUCTIONS In order to maximize life span, and minimize down time, all Matrix equipment requires regular cleaning, and maintenance items performed on a scheduled basis. This section contains detailed instructions on how to perform these items and the frequency of which they should be done.

  • Page 9: Chapter 4: Console Overlay And Workout Description

    CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION 4.1 CONSOLE DESCRIPTION WORKOUT KEYS Simple program view and selection buttons. GO: One touch Start. ENTER: To confirm each program setting. UP / DOWN LEVEL: Easy information and level selection. UP / DOWN TIME: Easy information and time adjustment. STOP: Ends workout and shows workout summary data.

  • Page 10: Workout Setup Steps - Manual

    CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION 4.2 WORKOUT SETUP STEPS - MANUAL - Press to immediately begin a workout. Workout, resistance level, and time will automatically go to default settings. Pressing GO will not prompt user for age, weight, or level settings. 1) Start pedaling and press the GO key to begin your workout.

  • Page 11: Workout Setup Steps - Constant Watts

    TARGET HEART RATE - The Matrix Stepper comes with standard digital contact heart rate sensors and are POLAR telemetry compatible. The heart rate control workout mode allows the user to program their desired heart rate zone, and the Stepper will automatically adjust the level based upon the user's heart rate.

  • Page 12: Chapter 5: Manager Mode

    CHAPTER 5: MANAGER MODE 5.1 USING MANAGER MODE The Manager's Custom Mode allows the club owner to customize the stepper for the club. 1) To enter Manager Mode, press and hold down the UP and DOWN LEVEL keys. Continue to hold down these two keys until the display reads Manager Mode and hit ENTER (Figure A).

  • Page 13: Chapter 6: Engineering Mode

    CHAPTER 6: ENGINEERING MODE 6.1 USING ENGINEERING MODE To enter Engineering Mode, hold the LEVEL UP and DOWN keys for 3-5 seconds until Manager appears on the middle LED display. Press the LEVEL UP or DOWN key to scroll to Engineering. Press ENTER to go into Engineering Mode. CUSTOM SETTING DEFAULT OPTIONS...

  • Page 14: Service Mode

    CHAPTER 7: SERVICE MODE 7.1 USING SERVICE MODE To enter Service Mode, hold the LEVEL UP and DOWN keys for 3-5 seconds until Manager Mode appears on the middle LED display. Press the LEVEL UP or DOWN key to scroll to Service Mode. Press ENTER to go into Service Mode. CODE DEFAULT OPTIONS...

  • Page 15: Chapter 8: Troubleshooting

    CHAPTER 8: TROUBLESHOOTING 8.1 ELECTRICAL DIAGRAMS...

  • Page 16: Error Codes On The Console

    CHAPTER 8: TROUBLESHOOTING 8.2 ERROR CODES ON THE CONSOLE CODE CLASS DESCRIPTION SOLUTION 0x0441 When the UCB implements Check the machine type in a command, the LCB is not Engineering Mode. Check the receiving this command. console cable connections at the UCB and LCB.

  • Page 17: Lcb Led Indicators

    CHAPTER 8: TROUBLESHOOTING 8.3 LCB LED INDICATORS LED INDICATOR DESCRIPTION LED 1 RPM (AC Plug In). LED 2 LED 3 +15V LED 4 Bus Voltage LED 5 RPM (Generator). LED 6 Status 1 (Program operation). LED 7 Status 2 (Resistance value in middle 1/2 VCC). LED 8 Status 3 (Digital Communication).

  • Page 18: Troubleshooting - Display Issues

    CHAPTER 8: TROUBLESHOOTING 8.4 TROUBLESHOOTING - DISPLAY ISSUES NO DISPLAY ON THE CONSOLE OR THE DISPLAY IS DIM WHEN RUNNING LED 9 LED 1 LED 8 LED 5 SYMPTOM: The console will not power up or the display is dim. CHECK POINT POSSIBLE ISSUE SOLUTION...

  • Page 19: Troubleshooting - Error 0X04A0

    CHAPTER 8: TROUBLESHOOTING 8.5 TROUBLESHOOTING - ERROR 0x04A0 ERROR 0x04A0 (DIGITAL COMMUNICATION FAILURE) LED 1 LED 8 SYMPTOM: Error code 0x04A0 is displayed on the console. CHECK POINT POSSIBLE ISSUE SOLUTION LEDs 2, 3, 4, 6, and 7 should be ON. If they are OFF, the LCB is damaged.

  • Page 20: Troubleshooting - Noise Issues

    CHAPTER 8: TROUBLESHOOTING 8.6 TROUBLESHOOTING - NOISE ISSUES ALL OR SOME OF THE FUNCTION KEYS DO NOT RESPOND POSSIBLE CAUSES: 1) The keypad connection ribbon cable has not been plugged in correctly. 2) The keypad is damaged. 3) The UCB is damaged. SOLUTION: 1) Perform a keypad test in Service Mode: a.

  • Page 21: Troubleshooting - Heart Rate Issues

    CHAPTER 8: TROUBLESHOOTING 8.7 TROUBLESHOOTING - HEART RATE ISSUES HEART RATE FUNCTION DOES NOT WORK OR IS READING INCORRECTLY POSSIBLE CAUSES: 1) The chest strap being used is not making good contact with the user's chest. 2) The chest strap is at a low battery status. 3) The chest strap is damaged.
  • Page 22 1. Sections 8.8 - 8.11 will help with diagnosing problems with TV and entertainment related equipment that is produced by Matrix Fitness Systems. 2. The S3x-02 Stepper has the capability of adding an external 15" TV with a bracket. A Matrix brand external TV will look similar to the TV in Figure A.
  • Page 23 CHAPTER 8: TROUBLESHOOTING 8.9 ENTERTAINMENT TROUBLESHOOTING – PICTURE FUZZY OR UNCLEAR 1. Remove the TV back cover (Figure A) Using a verified good piece of coax cable, hook the coax directly to the TV jack. This bypasses internal connections for your machine or TV stand (Figure B). FIGURE A FIGURE B 2.
  • Page 24 4. If internal TV power wire connections are good, verify 12 Volts power at the TV power wire where it plugs into the TV (wire in Figure B, shown with multi - meter in Figure E). If 12 Volts are present, the issue is likely with the TV itself, contact Matrix Customer Service.
  • Page 25 (Used for changing menu and other settings). If the TV will function with the handheld remote, replace the TV keypad. If the TV will not function with handheld remote it is likely an issue with the TV itself, contact Matrix Customer Technical Support.

  • Page 26: Chapter 9: Part Replacement Guide

    CHAPTER 9: PART REPLACEMENT GUIDE 9.1 CONSOLE REPLACEMENT 1) Turn off the power and disconnect the cord from the machine. 2) Remove the 5 screws that hold the console to the top of the console mast (Figure A). 3) Disconnect the console cable and other wiring and remove the console (Figure B). FIGURE A FIGURE B 4) Connect the wire connections to the new console.

  • Page 27: Heart Rate Handlebar Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.2 HEART RATE HANDLEBAR REPLACEMENT 1) Remove the console as outlined in Section 9.1. 2) Remove the 3 screws holding on the heart rate handlebar to the console mast being careful to support the handlebar (Figure A). FIGURE A 3) Carefully pull the wires from the console mast until the connectors are free and remove the defective handlebar (Figure B).

  • Page 28: Heart Rate Grip Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.3 HEART RATE GRIPS REPLACEMENT 1) Using a short Phillips screwdriver to remove the 3 screws holding the HR grip together (Figure A). NOTE: If you do not have a short screwdriver, you may need to remove the console to give access to the HR grip screws. 2) Once the 3 screws are removed, the HR grip can be split into 2 pieces (Figure B).

  • Page 29: Cup Holder Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.4 CUP HOLDER REPLACEMENT 1) Remove the 2 screws holding the cup holder to the console mast (Figure A). FIGURE A 2) Remove the cup holder (Figure B). FIGURE B 3) Reverse Steps 1-2 to install a new cup holder.

  • Page 30: Console Keypad / Overlay Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.5 CONSOLE KEYPAD / OVERLAY REPLACEMENT NOTE: The instructions below are for console overlays / keypads, but the procedure is the same regardless of where the overlay / keypad is. 1) Remove the console as outlined in Section 9.1. 2) Remove the 2 screws holding on the back cover of the console and remove it (Figure A).
  • Page 31 CHAPTER 9: PART REPLACEMENT GUIDE 9.5 CONSOLE KEYPAD / OVERLAY REPLACEMENT - CONTINUED 6) Peel the backing off of the new keypad and slide the ribbon cables through the slots in the console faceplate (Figures F & G). FIGURE F FIGURE G 7) Plug the ribbon cables into the UCB (Figure H).

  • Page 32: Console Mast Removal

    CHAPTER 9: PART REPLACEMENT GUIDE 9.6 CONSOLE MAST REMOVAL 1) Remove the console as outlined in Section 9.1. 2) Remove the HR handlebars as outlined in Section 9.2. 3) Remove the 2 screws holding the stationary handlebar junction to the console mast and pull the handlebars away from the console mast (Figure A).

  • Page 33: Upper Stationary Handlebar Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.7 UPPER STATIONARY HANDLEBAR REPLACEMENT 1) Remove the 2 screws holding the upper stationary handlebar junction to the console mast and lean it away from the console mast (Figure A). 2) Pull the defective upper stationary handlebar out of the upper stationary handlebar junction (Figure B). FIGURE A FIGURE B 3) Remove the 2 screws holding the bottom of the defective upper stationary handlebar to the lower stationary handlebar (Figure C).

  • Page 34: Lower Stationary Handlebar Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.8 LOWER STATIONARY HANDLEBAR REPLACEMENT 1) Remove the upper stationary handlebar on the side with a defective lower stationary handlebar as outlined in Section 9.7. 2) Remove the 2 screws holding the lower stationary handlebar to the rear stabilizer (Figure A). FIGURE A 3) This will allow you to remove the lower stationary handlebar from the unit (Figure B).

  • Page 35: Rear Stabilizer Cover Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.9 REAR STABILIZER COVER REPLACEMENT 1) Remove the 4 screws holding the rear stabilizer cover to the frame (Figure A). FIGURE A 2) Pull the rear stabilizer cover upward and off the unit (Figure B). FIGURE B 3) Reverse Steps 1-2 to install a new rear stabilizer cover.

  • Page 36: Rear Stabilizer Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.10 REAR STABILIZER REPLACEMENT 1) Remove the upper stationary handlebars as outlined in Section 9.7. 2) Remove the lower stationary handlebars as outlined in Section 9.8. 3) Remove the rear stabilizer cover as outlined in Section 9.9. 4) Remove the 4 screws holding the rear stabilizer to the frame and remove the stabilizer (Figure A).
  • Page 37 CHAPTER 9: PART REPLACEMENT GUIDE 9.11 SHROUD REMOVAL 1) Remove the 10 screws holding the right side shroud to the frame (Figure A). 2) Remove the 10 screws holding the left side shroud to the frame (Figure B). FIGURE A FIGURE B 3) Figure C shows the stepper with both shrouds removed.

  • Page 38: Lower Control Board Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.12 LOWER CONTROL BOARD REPLACEMENT 1) Remove the right side shroud as outlined in Section 9.11. 2) Disconnect the 5 wire connections to the lower board (Figure A). 3) Remove the 2 screws holding the lower board to the frame, and remove the lower board. FIGURE A 4) Reverse Steps 1-3 to install a new lower board.

  • Page 39: Generator Belt Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.13 GENERATOR BELT REPLACEMENT 1) Remove both shrouds as outlined in Section 9.11. 2) Loosen the 6 screws holding the generator to the frame (Figure A). 3) Loosen the eye bolt nut that applies tension to the generator belt (Figure B) and slide the generator towards the back of the unit to release the generator belt tension.

  • Page 40: Generator Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.14 GENERATOR REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Remove the 6 screws holding the generator to the frame (Figure A). 3) Remove the nut from the tension eye bolt (Figure B). FIGURE A FIGURE B 4) Once the nut from the tension eye bolt has been removed, the generator belt can be walked off the generator pulley (Figure C).

  • Page 41: Center Axle Set Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.15 CENTER AXLE REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Loosen the 6 screws holding the generator to the frame (Figure A). 3) Loosen the nut from the tension eye bolt (Figure B). FIGURE A FIGURE B 4) Once the nut from the tension eye bolt has been removed, the generator belt can be walked off the generator pulley (Figure C).

  • Page 42: Drive Belt Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.16 DRIVE BELT REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Loosen the 6 screws holding the generator to the frame (Figure A). 3) Loosen the nut from the tension eye bolt (Figure B). FIGURE A FIGURE B 4) Once the nut from the tension eye bolt has been loosened, the generator belt can be walked off the generator pulley (Figure C).
  • Page 43 CHAPTER 9: PART REPLACEMENT GUIDE 9.16 DRIVE BELT REPLACEMENT - CONTINUED 6) Lift up on the center axle and walk the belt off of the drive pulley (Figure E). 7) This will allow you to drop the center axle out of the frame and to remove the drive belt from around it (Figures F). FIGURE E FIGURE F 8) Disconnect the 2 pedal belt springs from the around the drive axle set (Figure G).

  • Page 44: Drive Axle Set Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.17 DRIVE AXLE SET REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Loosen the 6 screws holding the generator to the frame (Figure A). 3) Loosen the nut from the tension eye bolt (Figure B). FIGURE B FIGURE A 4) Once the nut from the tension eye bolt has been loosened, the generator belt can be walked off the generator pulley (Figure C).
  • Page 45 CHAPTER 9: PART REPLACEMENT GUIDE 9.17 DRIVE AXLE SET REPLACEMENT - CONTINUED 6) Lift up on the center axle and walk the belt off of the drive pulley (Figure E). 7) This will allow you to drop the center axle out of the frame and to remove the drive belt from around it (Figure F). FIGURE E FIGURE F 8) Disconnect the 2 pedal belt springs from the around the drive axle set (Figure G).

  • Page 46: Pedal Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.18 PEDAL REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Remove the 4 screws under the pedal frame going up into the plastic (Figures A & B). FIGURE A FIGURE B 3) This will allow you to remove the pedal (Figure C). FIGURE C 4) Reverse Steps 1-3 to install a new pedal.

  • Page 47: Pedal Belt Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.19 PEDAL BELT REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Disconnect the pedal belt beneath the pedal frame by removing the 2 screws on the pedal re-tension bracket (Figure A). 3) This will allow you to remove the belt from the pedal frame (Figure B). FIGURE A FIGURE B 4) Disconnect the pedal belt spring from the drive axle set, and remove the pedal belt (Figure C).

  • Page 48: Pedal Arm Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.20 PEDAL ARM REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Remove the pedal as outlined in Section 9.18. 3) Disconnect the pedal belt beneath the pedal frame by removing the 2 screws on the pedal re-tension bracket (Figure A). 4) This will allow you to remove the belt from the pedal frame (Figure B).

  • Page 49: Battery Replacement

    CHAPTER 9: PART REPLACEMENT GUIDE 9.21 BATTERY REPLACEMENT 1) Remove the shrouds as outlined in Section 9.11. 2) Disconnect the 2 wires going to the battery (Figure A). FIGURE A 3) Remove the 2 wing nuts holding the battery to the frame (Figure B) and remove the battery. FIGURE B 4) Reverse Steps 1-3 to install a new battery.

  • Page 50: Testing The Stepper

    CHAPTER 9: PART REPLACEMENT GUIDE 9.22 TESTING THE STEPPER ONCE THE UNIT OR REPLACEMENT PART IS FULLY INSTALLED AND ASSEMBLED AND PROPERLY PLACED ON THE FLOOR, USE THE FOLLOWING INSTRUCTIONS TO TEST THE MACHINE: 1) Check that the console is set for stepper. a.

  • Page 51: Chapter 10: Stepper Specifications And Assembly Guide

    CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.1 STEPPER SPECIFICATIONS CONSOLE Display Type 14 Seg Alphanumeric 8x16" LED Graphic Display Display Feedback Time, Distance, Calories per Hour, Speed, Incline, METs, Calories, Watts, Level, Heart Rate, SPM, Dynamic Profile Display, Static Profile Display Programs Manual, Rolling, Intervals, Fat Burn, Random, Target Heart Rate, Constant Watts, Fitness Test...

  • Page 52: Fasteners And Assembly Tools

    CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.2 FASTENERS AND ASSEMBLY TOOLS QUANTITY PART # SKETCH DESCRIPTION PACKAGE COLOR 5MM ALLEN WRENCH PURPLE 6 MM ALLEN WRENCH PURPLE #2 PHILLIPS PURPLE SCREWDRIVER SOCKET HEAD SCREW WHITE (M8 X 16L) LOCK WASHER WHITE SOCKET HEAD SCREW GREEN...

  • Page 53: Assembly Instructions

    CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.3 ASSEMBLY INSTRUCTIONS AFTER THESE ASSEMBLY STEPS ARE COMPLETE, BE SURE TO SETUP AND TEST THE UNIT AS OUTLINED IN SECTION 9.22. STEP 1 STEP 2...
  • Page 54 CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.3 ASSEMBLY INSTRUCTIONS - CONTINUED STEP 3...
  • Page 55 CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.3 ASSEMBLY INSTRUCTIONS - CONTINUED STEP 4...
  • Page 56 CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.3 ASSEMBLY INSTRUCTIONS - CONTINUED FINAL ASSEMBLY...

  • Page 57: Leveling The Stepper

    CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.4 LEVELING THE STEPPER STABILIZING THE MATRIX STEPPER After positioning the stepper in its intended location, check its stability by attempting to shake it side to side. Shaking or wobbling indicates that your stepper needs to be leveled. Determine which leveler is not resting completely on the floor. Loosen the nut with one hand to allow the leveler to rotate.
  • Page 58 10.5 TV BRACKET INSTALLATION The Matrix S3x-02 Stepper is capable of accepting a 15" TV via a bracket. Follow the instructions below to install the TV and bracket. Use the instructions in the Entertainment Owner's Manual to program the TV after installation.
  • Page 59 CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.5 TV BRACKET INSTALLATION - CONTINUED 6) Install a head phone jack to the new lower keypad plastic with the Entertainment keypad (Figure G). 7) Plug the head phone jack wire into the head phone jack (Figure H). FIGURE G FIGURE H 8) Install the new lower keypad plastic to the frame using the 5 screws removed in Step 5.
  • Page 60 CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.5 TV BRACKET INSTALLATION - CONTINUED 12) Plug the coax cable into the coax adaptor attached to the back half of the console (Figure M). 13) Use the 4 screws removed in Step 4 to re-attach the 2 halves of the console. NOTE: Route the TV power, coax, and controller wiring through the hole in top of the console.
  • Page 61 CHAPTER 10: STEPPER SPECIFICATIONS AND ASSEMBLY GUIDE 10.5 TV BRACKET INSTALLATION - CONTINUED 17) Route the TV power, controller, and console cables out the back of the console and plug into the back of the TV (Figures S & T). 18) The new TV should now be programmed and thoroughly tested before installing the covers.

  • Page 62: Chapter 11: Software Upgrade Guide

    4) Build a path of folders on the USB drive that will be used. The path should be MATRIX\FW\UCB (create a folder called MATRIX, then a folder within MATRIX called FW, then a folder within FW called UCB).
  • Page 63 NOTES...
  • Page 64 MAT R IX FITN E SS SY S TE MS C O R P. 16 10 L A N D MA R K D RIV E C O TTA GE GR O V E W I 5 352 7 U S A w w w.

Table of Contents