Matrix U3x-01 User manual

U3X-01 BIKE
SERVICE MANUAL

CHAPTER 1: SERIAL NUMBER LOCATION ................................................................... 1
CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS
2.1 Read and Save These Instructions ........................................................................... 2
2.2 Electrical Requirements ............................................................................................ 2
CHAPTER 3: PREVENTATIVE MAINTENANCE
3.1 Recommended Cleaning Tips ................................................................................... 3
3.2 Check for Damaged Parts ......................................................................................... 3
3.3 Care and Maintenance Instructions .......................................................................... 4
CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.1 Console Description .................................................................................................. 5
4.2 Workout Setup Steps - Manual.................................................................................. 6
4.3 Workout Setup Steps - Fat Burn................................................................................ 6
4.4 Workout Setup Steps - Level Based.......................................................................... 6
4.5 Workout Setup Steps - Fitness Test........................................................................... 7
4.6 Workout Setup Steps - Target Heart Rate ................................................................. 8
4.7 Workout Setup Steps - Constant Watts ..................................................................... 8
CHAPTER 5: MANAGER MODE
5.1 Using Manager Mode ................................................................................................ 9
5.2 Manager Mode Overview........................................................................................... 10
CHAPTER 6: ENGINEERING / SERVICE MODE
6.1 Engineering / Service Mode Overview....................................................................... 11
CHAPTER 7: TROUBLESHOOTING
7.1 Electrical Diagrams ................................................................................................... 12
7.2 Troubleshooting - Keypad Issues............................................................................... 15
7.3 Troubleshooting - Resistance Issues ......................................................................... 16
7.4 Troubleshooting - Pedal Slipping ............................................................................... 17
7.5 Troubleshooting - Noise Issues.................................................................................. 17
7.6 Troubleshooting - Console Issues.............................................................................. 18
7.7 Troubleshooting - No RPM Reading .......................................................................... 19
7.8 Troubleshooting - Heart Rate Issues ......................................................................... 20
CHAPTER 8: PART REPLACEMENT GUIDE
8.1 Console Replacement................................................................................................ 21
8.2 Heart Rate Handlebar Replacement ......................................................................... 22
8.3 Heart Rate Grip Replacement ................................................................................... 23
8.4 Cup Holder Replacement........................................................................................... 24
8.5 Console Keypad / Overlay Replacement................................................................... 25
8.6 Console Mast Removal.............................................................................................. 27
8.7 Seat Pad Replacement .............................................................................................. 28
8.8 Seat Post Replacement ............................................................................................. 29
TABLE OF CONTENTS
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TABLE OF CONTENTS
8.9 Seat Post Insert Replacement .................................................................................. 30
8.10 Pedal Replacement.................................................................................................... 31
8.11 Shrouds Removal....................................................................................................... 32
8.12 Lower Control Board Replacement ........................................................................... 33
8.13 Drive Belt Replacement ............................................................................................. 34
8.14 Generator Belt Replacement...................................................................................... 35
8.15 Generator Replacement............................................................................................. 36
8.16 Pulley Axle Set Replacement.......................................................................................... 37
8.17 Crank Axle Set Replacement.......................................................................................... 39
8.18 Rear Stabilizer Replacement .......................................................................................... 40
8.19 Front Stabilizer Replacement ......................................................................................... 41
8.20 Testing the Bike............................................................................................................... 42
CHAPTER 9: BIKE SPECIFICATIONS AND ASSEMBLY GUIDE
9.1 U3x-01 Bike Specifications ........................................................................................ 43
9.2 Fasteners and Assembly Tools .................................................................................. 44
9.3 Assembly Instructions ............................................................................................... 45
9.4 Adjusting the Pedal Straps and Seat ......................................................................... 51
9.5 Leveling the Bike........................................................................................................ 52
9.6 TV Installation Instructions......................................................................................... 53
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1.1 SERIAL NUMBER LOCATION
CHAPTER 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.

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CAUTION! If you experience chest pains, nausea, dizziness,
or shortness of breath, stop exercising immediately and con-
sult your physician before continuing.
CAUTION! Any changes or modifications to this equipment
could void the product warranty.
CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS
2.1 READ AND SAVE THESE INSTRUCTIONS
To ensure your safety and protect the equipment, read all
instructions before operating the MATRIX U3x-01 Bike.
To ensure proper use of the Matrix U3x-01 Bike, make sure that all
users read this manual. Remind the users that before undertaking
any fitness program, they should obtain complete physical
examinations from their physicians. If, at any time while exercising,
the user experiences dizziness, pain, or shortness of breath,
nausea or feels faint, he or she must stop immediately.
* This bike is only to be used for its intended purpose described
in this manual. Do not use attachments that have not been rec-
ommended by Matrix.
* Never drop or insert objects into any opening. Keep hands
away from moving parts. If the item cannot be reached, contact
a Matrix authorized dealer for assistance.
* Never operate the unit if it is damaged, not working properly,
when it has been dropped, or has been dropped in water.
* Keep hands and feet clear at all times from moving parts to
avoid injury.
* Do not use this product outdoors, near swimming pools or in
areas of high humidity.
* Do not operate where aerosol (spray) products are being used
or when oxygen is being administered.
* Do not use this product in bare feet. Do not wear shoes with
heels, leather soles, cleats, or spikes while exercising.
* Do not remove the side covers. Service should only be done
by an authorized service technician.
* Close supervision is necessary when used near children, inva-
lids, or disabled people.
* When the bike is in use, young children and pets should be
kept at least 3 meters / 10 feet away.
* Assemble and operate the bike on a solid, level surface.
* Never face backward while using the Matrix U3x-01 Bike.
* Use the stationary handlebars when mounting or dismounting
the bike.
* Do not wear clothing that might catch on any moving parts of
this bike.
2.2 ELECTRICAL REQUIREMENTS
The Matrix U3x-01 Bike is designed to be self powered and does not
require an external power supply source to operate.
The battery in the console needs to be charged for 3-4 hours when
first installed. Until the battery is fully charged, the 30 second pause
feature may not function fully. The charging does not need to be
continuous for 3-4 hours, but over combined workouts equaling 3-4
hours.

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Preventative maintenance and daily cleaning will prolong the life and look
of your MATRIX U3x-01 Bike
Please read and follow these tips.
* Position the equipment away from direct sunlight. The intense UV light
can cause discoloration on plastics.
* Locate your equipment in an area with cool temperatures and low
humidity.
* Clean with a soft 100% cotton cloth.
* Clean with soap and water or other non-ammonia based all purpose
cleaners.
* Wipe seats, pedals, console, heart rate grips, and the handlebar clean
after each use.
* Do not pour liquids directly onto your equipment. This can cause dam-
age to the equipment and in some cases electrocution.
* Check pedal straps weekly for wear.
* Adjust leveling feet when equipment wobbles or rocks.
* Maintain a clean area around the equipment, free from dust and dirt.
DO NOT use any equipment that is damaged or has worn or
broken parts. Use only replacement parts supplied by Matrix
Fitness Systems.
MAINTAIN LABELS AND NAMEPLATES. Do not remove labels
for any reason. They contain important information. If unreadable
or missing, contact Matrix Fitness Systems for a replacement at
866-693-4863 or www.matrixfitness.com.
MAINTAIN ALL EQUIPMENT. Preventative maintenance is the
key to smoothly operating equipment. Equipment needs to be
inspected at regular intervals. Defective components must be
kept out of use until they are repaired. Ensure that any person(s)
making adjustments or performing maintenance or repair of any
kind is qualified to do so. Matrix Fitness Systems will provide
service and maintenance training at our corporate facility upon
request or in the field if proper arrangements are made.
3.2 CHECK FOR DAMAGED PARTS
3.1 RECOMMENDED CLEANING TIPS
CHAPTER 3: PREVENTATIVE MAINTENANCE

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CHAPTER 3: PREVENTATIVE MAINTENANCE
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. Some basic tools and supplies will be
necessary to perform these tasks which include (but may not be
limited to):
* Metric Allen wrenches
* #2 Phillips head screwdriver
* Adjustable wrench
* Torque wrench (capability to read foot lbs and inch lbs)
* Lint free cleaning cloths
* Teflon based spray lubricant such as "Super Lube" or other Matrix
approved products.
* Mild water soluble detergent such as "Simple Green" or other
Matrix approved products
* Vacuum cleaner with an extendable hose and crevasse tool
attachment.
You may periodically see addendums to this document, as the
Matrix Technical Support Team identifies items that require specific
attention, the latest version will always be available on the Matrix
web site at www.matrixfitness.com.
DAILY MAINTENANCE ITEMS
1) Look and listen for loose fasteners, unusual noises, and any
other indications that the equipment may be in need of service.
2) Clean the bike before and after each use, including:
a. Use a damp, soft cloth with water or mild liquid detergent
to clean all exposed surfaces. DO NOT use ammonia, chlorine, or
any acid based cleaners.
b. Keep the console display free of fingerprints and salt build
up caused by sweat.
WEEKLY MAINTENANCE ITEMS
1) Frequently vacuum the floor beneath the unit to prevent the
accumulation of dust and dirt which can affect the smooth operation
of the unit.
2) Check the pedal straps for damage.
3) Clean the grooves on the foot pedals.
MONTHLY MAINTENANCE ITEMS
1) Inspect the console, seat, pedals, and shrouds for damage.
2) Tighten the pedals onto their respective cranks using a 15 mm
wrench. NOTE: The left pedal is reverse threaded.
3) Adjust the leveling feet if equipment rocks or wobbles.
QUARTERLY MAINTENANCE ITEMS
1) Remove the front shrouds and check the belt for damage,
alignment, and proper tension.

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CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.1 CONSOLE DESCRIPTION
PROGRAM KEYS: Simple program selection buttons make Matrix bikes easy to use. The bike features eight programs.
START / QUICK START: One touch Quick Start and Start any time during preference selection.
UP / DOWN LEVEL: Easy information and level selection.
SELECT / SELECT SCREEN / RESET: This multi-function button enters information when setting up programming options, toggles information
displayed and if held down for 5 seconds, resets the bike to Start-up Mode.

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4.2 WORKOUT SETUP STEPS - MANUAL 4.4 WORKOUT SETUP STEPS - LEVEL BASED
CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.3 WORKOUT SETUP STEPS - FAT BURN
QUICK START - Press to immediately begin a workout.
Workout, resistance level, and time will automatically go to default
settings. Pressing QUICK START will not prompt user for age,
weight, or level settings.
MANUAL - Manual allows the user to input more information
while defining their own workout. Calorie expenditure will be more
accurate when inputting information in Manual than by pressing
QUICK START.
1) Start pedaling, press the MANUAL key.
2) Select Level by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and press
SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and then
the program will begin.
FAT BURN - Fat burn is a level based program that is designed
to help users burn fat through various resistance level changes.
1) Start pedaling and press the FAT BURN key.
2) Select Level by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and press
SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and then
the program will begin.
ROLLING HILLS - The Rolling Hills program is a level based
program that automatically adjusts the resistance level to simulate
real terrain.
1) Start pedaling and press the ROLLING HILLS key.
2) Select Level by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and press
SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and then
the program will begin.
INTERVAL TRAINING - The Interval Training program is a
level based program that automatically adjusts the resistance of the
machine from low to high intensity settings at regular intervals.
1) Start pedaling and press the INTERVAL TRAINING key.
2) Select Level by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and press
SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and then
the program will begin.
RANDOM - Random is a level based workout that randomly
adjusts the resistance of the machine.
1) Start pedaling and press the key next to RANDOM key.
2) Select Level by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and press
SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and then
the program will begin.

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CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.5 WORKOUT SETUP STEPS - FITNESS TEST
FITNESS TEST -The Cooper Fitness Test measures cardiovascular fitness and proves an estimated sub-maximal VO2 result. It is based
on power output according to ACSM standards and was developed by the Cooper Institute© (www.cooperinstitute.org). User RPMs must
remain between 60-80 RPM during the test. The test will end when the user can no longer maintain this speed. Use of a heart rate strap is
optional but provides more data.
The test starts at a low intensity level and gradually increases in intensity (difficulty) every 2 minutes. As it increases, the user must maintain
60-80 RPM to advance to the next level. The test could take upwards of 30+ minutes for very fit individuals. Once the test ends a recovery
period (cool down) will begin and the user's results are calculated and displayed. Results are based on the number of stages completed.
1) Start pedaling and press the FITNESS TEST key.
2) Select Age by using the UP or DOWN LEVEL keys and press SELECT.
3) Select Gender by using the UP or DOWN LEVEL keys and press SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and press SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and then the program will begin.
6) Once the workout is complete, the display will read the results of the Fitness Test.
PERCENTILE VALUES FOR MAXIMAL AEROBIC POWER
AGE
PERCENTILE 20-29 30-39 40-49 50-59 60+
MEN
90 51.4 50.4 48.2 45.3 42.5
80 48.2 46.8 44.1 41.0 38.1
70 46.8 44.6 41.8 38.5 35.3
60 44.2 42.4 39.9 36.7 33.6
50 42.5 41.0 38.1 35.2 31.8
40 41.0 38.9 36.7 33.8 39.2
30 39.5 37.4 35.1 32.3 28.7
20 37.1 35.4 33.0 30.2 26.5
10 34.5 32.5 30.9 28.0 23.1
WOMEN
90 44.2 41.0 39.5 35.2 35.2
80 41.0 38.6 36.3 32.3 31.2
70 38.1 36.7 33.8 30.9 29.4
60 36.7 34.6 32.3 29.4 27.2
50 35.2 33.8 30.9 28.2 25.8
40 33.8 32.3 29.5 26.9 24.5
30 32.3 30.5 28.3 25.5 23.8
20 30.6 28.7 26.5 24.3 22.8
10 28.4 26.5 25.1 22.3 20.8

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4.6 WORKOUT SETUP STEPS - TARGET HEART RATE
CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.7 WORKOUT SETUP STEPS - CONSTANT WATTS
TARGET HEART RATE - The Matrix U3x-01 Bike 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 bike will automatically
adjust the level based upon the user's heart rate. The heart rate
zone is calculated using the following equation: (220-Age)8%=target
heart rate zone. The user must wear a POLAR telemetric strap or
continually hold onto the contact heart rate grips for this workout.
Locate the metal sensors on the handlebars of the bike. Notice
that there are two separate pieces of metal on each grip. You must
be making contact with both pieces of each grip to get an accurate
heart rate reading. You can grab these sensors in any program to
view your current heart rate.
1) Start pedaling and press the HEART RATE key.
2) Select Age by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Target HR Percentage by using the UP or DOWN LEVEL
keys and press SELECT.
4) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
5) Select Weight by using the UP or DOWN LEVEL keys and press
SELECT.
6) The display will read Starting 3, Starting 2, Starting 1, and the
program will begin.
CONSTANT WATTS - Constant Watts is a unique program
that allows you to vary your cadence or RPM and the bike's
resistance level will adjust accordingly to your selected goal. The
quicker you pedal, the less resistance for the goal selected.
1) Start pedaling and press the CONSTANT WATTS key.
2) Select Watts by using the UP or DOWN LEVEL keys and press
SELECT.
3) Select Time by using the UP or DOWN LEVEL keys and press
SELECT.
4) Select Weight by using the UP or DOWN LEVEL keys and
press SELECT.
5) The display will read Starting 3, Starting 2, Starting 1, and the
program will begin.

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CHAPTER 5: MANAGER MODE
5.1 USING MANAGER MODE
The Manager's Custom Mode allows the club owner to customize the bike 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 SELECT (Figure A).
2) To scroll through the list of options in Manager Mode, use the UP and DOWN LEVEL keys. Each of the custom settings will show on the
display.
3) To select a custom setting, press the SELECT key when the desired setting is shown.
4) To change the value of the setting, use the UP and DOWN LEVEL keys.
5) To confirm and save the value of the setting, press the START key.
6) Press the START key 2 times to return to normal operation.

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CHAPTER 5: MANAGER MODE
5.2 MANAGER MODE OVERVIEW
CUSTOM SETTING DEFAULT MINIMUM MAXIMUM DESCRIPTION
Maximum Time 95 min 10 min 95 min Sets the total run time of any program.
Default Time 20 min 10 min Maximum
Time
Setting
Workout time when GO is pressed or when no time is selected
during program set up.
Default Level 1 1 20 Starting resistance when GO is pressed or when no resistance is
selected during program set up.
Default Weight 150 lbs /
75 kg
80 lbs / 36 kg 400 lbs /
181 kg
Weight used for program calorie expenditure calculations.
Speed / Distance Mode Mile Mile Kilometer Displays distance in miles or kilometers.
Machine Bike (BI) Elliptical (EL) Bike (BI) This should be set for bike (BI) at all times.
Cardio On Off On This turns the cardio port on or off.
Accumulated Distance* N/A 0 65,000
Miles
Total distance for all programs.
Accumulated Time* N/A 0 65,000
hours
Total time for all programs displayed in hours.
Language English English English Sets the language for the console. Select between English, German,
Dutch, Italian, French, Spanish, and Portuguese.
Software Version N/A N/A N/A Current version of console software.
*NOTE - TO RESET ACCUMULATED DISTANCE OR TIME:
1) Enter Manager Mode
2) Select P7 or P8.
3) Press and hold the MANUAL and RANDOM keys together for 5 seconds.

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To enter Engineering or Service Mode, hold the UP and DOWN LEVEL keys for 3 seconds until Manager Mode appears on the middle LED
display. Press the UP or DOWN LEVEL key to scroll between the different Engineering and Service Modes.
ENGINEERING MODE
This mode is for factory settings only.
SERVICE MODE
SERVICE 1: Display Test.
SERVICE 2: RPM Reading.
SERVICE 3: Accumulated Distance and Time.
SERVICE 4: Heart Rate Test.
6.1 ENGINEERING / SERVICE MODE OVERVIEW
CHAPTER 6: ENGINEERING / SERVICE MODE

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CHAPTER 7: TROUBLESHOOTING
7.1 ELECTRICAL DIAGRAMS

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7.1 ELECTRICAL DIAGRAMS
CHAPTER 7: TROUBLESHOOTING

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CHAPTER 7: TROUBLESHOOTING
7.1 ELECTRICAL DIAGRAMS
P01 CONSOLE CABLE
P03 PULSE SENSOR WIRE

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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 console is damaged.
SOLUTION:
1) Check the connections of the keypad at the UCB.
a. Remove the console from the console mast.
b. Remove the 6 screws holding the back of the console to the front (Figure A).
c. Inspect the keypad ribbon cable connection at the UCB (Figure B).
d. Even if the keypad ribbon cable appears to be connected correctly, unplug and re-seat the cable, then retest.
2) Replace the affected keypad.
3) Replace the console.
FIGURE A FIGURE B
7.2 TROUBLESHOOTING - KEYPAD ISSUES
CHAPTER 7: TROUBLESHOOTING

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HIGH OR NO RESISTANCE
POSSIBLE CAUSES:
1) The console cable is damaged or not properly plugged in.
2) The Upper Control Board is damaged.
3) The Generator is damaged.
4) The Lower Control Board is damaged.
SOLUTION:
1) Check the console cable connections at the UCB and LCB.
2) Check if the generator is outputting variable power:
a. Insert the probes from a multi-meter into the black and red wires on the generator wire harness connector (Figure A).
b. When pedaling, the output voltage from the generator should vary depending on the RPM. The generator should output 120 VAC at 94
RPM.
3) If the generator does not have variable power, replace the generator.
4) If the generator does have variable power, replace the LCB.
5) If both the generator and LCB have been replaced and the issue is still present, replace the console.
FIGURE A
7.3 TROUBLESHOOTING - RESISTANCE ISSUES
CHAPTER 7: TROUBLESHOOTING