Matrix U3X-02 User manual

U3X-02 BIKE
SERVICE MANUAL

CHAPTER 1: SERIAL NUMBER LOCATION ................................................................... 1
CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS
2.1 Read and Save These Instructions ........................................................................... 3
2.2 Electrical Requirements ............................................................................................ 4
CHAPTER 3: PREVENTATIVE MAINTENANCE
3.1 Recommended Cleaning Tips ................................................................................... 5
3.2 Check for Damaged Parts ......................................................................................... 5
3.3 Care and Maintenance Instructions .......................................................................... 6
CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.1 Console Description .................................................................................................. 7
4.2 Workout Setup Steps - Manual.................................................................................. 8
4.3 Workout Setup Steps - Fat Burn................................................................................ 8
4.4 Workout Setup Steps - Level Based.......................................................................... 8
4.5 Workout Setup Steps - Fitness Test........................................................................... 9
4.6 Workout Setup Steps - Target Heart Rate ................................................................. 10
4.7 Workout Setup Steps - Constant Watts ..................................................................... 10
CHAPTER 5: MANAGER MODE
5.1 Using Manager Mode ................................................................................................ 11
5.2 Manager Mode Overview........................................................................................... 11
CHAPTER 6: ENGINEERING MODE
6.1 Using Engineering Mode............................................................................................ 12
CHAPTER 7: SERVICE MODE
7.1 Using Service Mode................................................................................................... 13
CHAPTER 8: TROUBLESHOOTING
8.1 Electrical Diagram ..................................................................................................... 14
8.2 Error Codes on the Console ...................................................................................... 15
8.3 LCB LED Instructions................................................................................................. 16
8.4 Troubleshooting - Display Issues ............................................................................... 17
8.5 Troubleshooting - Error Ox04A0 ................................................................................ 18
8.6 Troubleshooting - Keypad Issues............................................................................... 19
8.7 Troubleshooting - Resistance Issues ......................................................................... 20
8.8 Troubleshooting - Pedal Slipping ............................................................................... 21
8.9 Troubleshooting - Noise Issues.................................................................................. 21
8.10 Troubleshooting - Heart Rate Issues ......................................................................... 22
CHAPTER 9: PART REPLACEMENT GUIDE
9.1 Console Replacement................................................................................................ 23
9.2 Heart Rate Handlebar Replacement ......................................................................... 24
9.3 Heart Rate Grip Replacement ................................................................................... 25
9.4 Cup Holder Replacement........................................................................................... 26
9.5 Console Keypad / Overlay Replacement................................................................... 27
9.6 Console Mast Removal.............................................................................................. 29
9.7 Seat Pad Replacement .............................................................................................. 30
9.8 Seat Post Replacement ............................................................................................. 31
9.9 Seat Post Insert Replacement .................................................................................. 32
TABLE OF CONTENTS

III
9.10 Pedal Replacement.................................................................................................... 33
9.11 Shrouds Removal....................................................................................................... 34
9.12 Lower Control Board Replacement ........................................................................... 35
9.13 Battery Replacement.................................................................................................. 36
9.14 Drive Belt Replacement ............................................................................................. 37
9.15 Generator Belt Replacement...................................................................................... 38
9.16 Generator Replacement............................................................................................. 39
9.17 Pulley Axle Set Replacement.......................................................................................... 40
9.18 Crank Axle Set Replacement.......................................................................................... 42
9.19 Rear Stabilizer Replacement.......................................................................................... 43
9.20 Front Stabilizer Replacement ......................................................................................... 44
9.21 Testing the Bike............................................................................................................... 45
CHAPTER 10: BIKE SPECIFICATIONS AND ASSEMBLY GUIDE
10.1 U3x-02 Bike Specifications ........................................................................................ 46
10.2 Fasteners and Assembly Tools .................................................................................. 47
10.3 Assembly Instructions ............................................................................................... 48
10.4 Adjusting the Pedal Straps and Seat ......................................................................... 52
10.5 Leveling the Bike........................................................................................................ 53
CHAPTER 11: SOFTWARE UPGRADE GUIDE
11.1 Software Upgrade Instructions................................................................................... 54
TABLE OF CONTENTS

1
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.
CHAPTER 1: SERIAL NUMBER LOCATION

2
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.
2.1 READ AND SAVE THESE INSTRUCTIONS
To ensure your safety and protect the equipment, read all
instructions before operating the MATRIX U3x-02 Bike.
To ensure proper use of the Matrix U3x-02 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 recom-
mended 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, invalids,
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-02 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.
CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS

3
2.2 ELECTRICAL REQUIREMENTS
GROUNDING INSTRUCTIONS:
The Matrix U3x-02 Upright Bike must be grounded. If it should malfunction or break down, grounding provides a path of least resistance for
electric current to reduce the risk of electric shock. The Bike is equipped with a cord having an equipment grounding conductor and a grounding
plug. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and
ordinances. If the user does not follow these grounding instructions, the user could void the Matrix limited warranty.
DANGER: Improper connection of the equipment grounding conductor can result in the risk of electric shock. Check with a qualified electrician
if the user is in doubt as to whether the product is properly grounded. Do not modify the plug provided with the product if it will not fit the outlet,
have a proper outlet installed by an electrician.
The Matrix 3x Series Upright Bike is designed to be self powered. 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. If the Bike will be plugged in, follow the requirements below.
MATRIX DEDICATED CIRCUIT/ELECTRICAL REQUIREMENT INFO
All Matrix Bikes require the use of a 15 amp or 20 amp “dedicated circuit,” with a non-looped (isolated) neutral/ground, for the power requirement.
Quite simply this means that each outlet you plug Bikes into should not have anything else running on that same circuit besides other Bikes (up to
3 per 15 amp circuit and 4 per 20 amp circuit). The easiest way to verify this is to locate the main circuit breaker box, and turn off the breaker(s)
one at a time. Once a breaker has been turned off, the only thing that should not have power to it are the Bikes in question. No lamps, vending
machines, fans, sound systems, or any other item should lose power when you perform this test.
Non-looped (isolated) neutral/grounding means that each circuit must have an individual neutral/ground connection coming from it, and terminating
at an approved earth ground. You cannot “jumper” a single neutral/ground from one circuit to the next.
In addition to the dedicated circuit requirement, the proper gauge wire must be used from the circuit breaker box, to each outlet that will have the
maximum number of units running off of it. If the distance from the circuit breaker box, to each outlet, is 100 ft or less, then 12 gauge wire may be
used. For any distance greater than 100 ft from the circuit breaker box to the outlet, 10 gauge wire must be used.
For your safety and Bike performance, the ground on this circuit must be non-looped. Please refer to NEC article 210-21 and 210-23. Your Bike is
provided with a power cord with a plug listed below and requires the listed outlet. Any alterations of this power cord could void all warranties for
this product. Multiple Bikes can be powered on one dedicated circuit. (3 units per 15 Amp and 4 units per 20 Amp dedicated circuit.)
CHAPTER 2: IMPORTANT SAFETY INSTRUCTIONS

4
Preventative maintenance and daily cleaning will prolong the life and look
of your MATRIX U3x-02 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

5
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. NOTE: Spray cleaner onto a cloth before using, never spray cleaner directly onto the equipment.
b. Keep the console display free of fingerprints and salt build up caused by sweat.
3) Attempt to wobble the unit from side to side and front to back. Level if needed (see Section 10.5).
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.
3) Adjust the leveling feet if equipment rocks or wobbles.
4) Clean the seat post track with a 100% cotton cloth.
YEARLY MAINTENANCE ITEMS
1) Remove the front shrouds and check the belt for damage, alignment, and proper tension.
CHAPTER 3: PREVENTATIVE MAINTENANCE

6
4.1 CONSOLE DESCRIPTION
CHAPTER 4: CONSOLE OVERLAY AND WORKOUT 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.
COOL DOWN: Puts the Bike into Cool Down Mode.
TOGGLE DISPLAY: Allows the user to select what information is displayed on each of the 3 windows on the console. Press and hold to enable /
disable scrolling.

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CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
GO - 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. 2) The display will read 3, 2, 1, Begin and then the program will start.
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 GO.
1) Start pedaling, press the MANUAL key.
2) Select Level by using the UP or DOWN LEVEL keys and press ENTER.
3) Select Time by using the UP or DOWN LEVEL keys and press ENTER.
4) Select Weight by using the UP or DOWN LEVEL keys and press ENTER.
5) The display will read 3, 2, 1, Begin and then the program will start.
4.2 WORKOUT SETUP STEPS - MANUAL
4.3 WORKOUT SETUP STEPS - LEVEL BASED PROGRAMS
FAT BURN - Fat burn is a level based program that is designed to help users burn fat through various resistance level changes.
ROLLING HILLS - The Rolling Hills program is a level based program that automatically adjusts the resistance level to simulate real
terrain.
INTERVAL TRAINING - The Intervals 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, press the workout button of choice.
2) Select Time by using the UP or DOWN LEVEL keys and press ENTER.
3) Select Weight by using the UP or DOWN LEVEL keys and press ENTER.
4) Select Level by using the UP or DOWN LEVEL keys and press ENTER.
5) The display will read 3, 2, 1, Begin and the program will start.
4.4 WORKOUT SETUP STEPS - USER DEFINED PROGRAMS
RANDOM - There are 20 workout profiles in Random Mode. The profile will change every time random is pressed. Choose the random
workout desire, then start similar to a level based program.
FIT TEST -The Fitness Test measures cardiovascular fitness and provides an estimated sub-maximal VO2 result. It based on power output
according the ACSM standards and was developed by the Cooper Institute (www.cooperinstitute.com).
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 complete.
Stage Complete:
1 Well Below Average
2 Well Below Average
3 Below Average
4 Below Average
5 Average
6 Average
7 Above Average
8 Above Average
9+ Well Above Average

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CHAPTER 4: CONSOLE OVERLAY AND WORKOUT DESCRIPTION
4.5 WORKOUT SETUP STEPS - HEART RATE CONTROL
TARGET HEART RATE - The Matrix 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 TARGET HEART RATE key.
2) Select Age by using the UP or DOWN LEVEL keys and press ENTER.
3) Select Target HR Percentage by using the UP or DOWN LEVEL keys and press ENTER.
4) Select Time by using the UP or DOWN LEVEL keys and press ENTER.
5) Select Weight by using the UP or DOWN LEVEL keys and press ENTER.
6) The display will read 3, 2, 1, Begin and the program will start.
Heart Rate Protocols:
- Heart rate is within 10 BPM (beats per minute) of target, upper LED display will show a heart.
- Heart rate is greater or less than 10 BPM of target, resistance level will increase or decrease every 10 seconds.
- Heart rate is greater than 14 BPM of target, resistance level will drop to 30%.
- Heart rate is greater than 10 BPM of target, lower LED will display "WARNING HR ABOVE TARGET".
- Heart rate is greater than 20 BPM of target, the program will immediately end.
4.6 WORKOUT SETUP STEPS - CONSTANT WATTS
CONSTANT WATTS - Constant Watts is a unique program that allows you to vary your cadence or RPM and the machine's resistance will
adjust accordingly to your selected goal. The quicker you stride, the less resistance for the goal selected. The braking system is adjustable in
normal programs except for Constant Watts. For the Constant Watts program, the braking is not adjustable.
1) Start pedaling and press the CONSTANT WATTS key.
2) Select desired Watts by using the UP or DOWN LEVEL keys and press ENTER.
3) Select Time by using the UP or DOWN LEVEL keys and press ENTER.
4) Select Weight by using the UP or DOWN LEVEL keys and press ENTER.
5) The display will read 3, 2, 1, Begin and the program will start.

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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 ENTER (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 ENTER 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 ENTER
key.
6) To exit the setting without saving, press the BACK key.
7) Press and hold the STOP key for 3-5 seconds to return to normal
operation.
5.2 MANAGER MODE OVERVIEW
FIGURE A
CUSTOM SETTING DEFAULT MINIMUM MAXIMUM DESCRIPTION
Maximum Time 60 min 5 min 99 min Sets the total run time of any program.
Default Time 30 min 5 min Maximum Time
Setting
Workout time when GO is pressed or when no time is selected
during program set up.
Default Age 30 10 100 Starting age when GO is pressed or when no age is selected
during program set up.
Default User Weight 150 lbs /
68 kg
60 lbs / 27
kg
400 lbs / 182
kg
Weight used for program calorie expenditure calculations.
Accumulated Distance N/A 0 99,999 Miles Total distance for all programs.
Accumulated Time N/A 0 999,999 hours Total time for all programs displayed in hours.
Software Version N/A N/A N/A Current version of console software. Also able to check LCB
and radio versions if needed.
Sound Mode On On Off Turns the chime on / off when a button is pressed.
Out of Order Off On Off Locks the machine when out of order.
Gender Male Male Female Determines the gender of the user when not selected during
program set up.
Language English English English Sets the language for the console. Select between English,
Spanish, German, French, Italian, Portuguese, Finnish,
Japanese, Swedish, and Dutch.
Speed / Distance Mode Mile Mile Kilometer Displays distance in miles or kilometers.
Default Level 1 1 20 Starting resistance when GO is pressed or when no resistance
is selected during program set up.

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6.1 USING ENGINEERING MODE
CHAPTER 6: 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 DESCRIPTION
Machine Type U3x H3x, U3x, R3x, E3x, S3x, A3x The machine type should be the
U3x for the Bike.
Power Save Time 30 Seconds 30-60 Seconds Power saving time for the self
powered frame.
Pause Time 30 Seconds 15 - 120 Seconds For non self powered frames
only. Not used on this model.
Serial Number N/A N/A Serial Number input is available
for both the Console and Frame.
Use the number keys and UP
/ DOWN LEVEL keys to enter
Engineering Mode. Due to the
limited LED characters, 2 layers
are used to enter the serial
number. First Layer:
- PPPPP V
- PPPPP is the product name.
- V is the version. If the
version is A, just leave this blank.
Second Layer
- YY MM nnnnn.
- YY is the year (11, 12).
- MM is the month (e.g. 08,
09, 10).
- nnnnn is the actual serial
number.
Use the UP / DOWN LEVEL keys
to navigate the layers and the
number keys to input the serial
number. The product name is
dependent on the Machine Type
setting.
For example, the console is
EP603 with ver. A and the
manufactured date is 2011.08
with 98765. The frame is CB75
with ver. A and the manufactured
date is 2011.06 with 12345. Their
serial numbers are:
Console SN: EP603 1rst layer,
110898765 2nd layer.
Frame SN: CB75 1rst layer,
110612345 2nd layer.
Sleep Time Off Off or On (1-30 Minutes) If there is no use of the machine
over a period of time, the console
LEDs will turn off (go into sleep
mode). This is for AC powered
units only.
Audio Source Off Off / TV / PC TV / Remote TV Manual setting that sets which
outside TV will have audio
through the console audio ports.
Disable Errors No Yes or No No - Shows A-C class error
codes. Yes - Shows only C class
error codes.
Speed Units Mile Mile or Kilometer Set for Mile or Kilometer.

11
7.1 USING SERVICE MODE
CHAPTER 7: 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 DESCRIPTION
Service 1 Display Test Press the ENTER key repeatedly
to check each set of LEDs on the
display sequentially.
Service 2 Keypad Test Press any key and the display
should show the corresponding
message.
Service 3 Distance / Time Distance:
Mile 0 - 99999
Kilometer 0 - 160898
Time:
0 - 999999
Manually sets the Accumulated
Distance and Time.
Service 4 CSafe / RF Test Press the ENTER key to test
CSAFE. Press the ENTER key
again to test the RF.
Service 5 Error Log Shows the last 10 errors. Press
and LEVEL UP and DOWN for 3
seconds to clear the errors.
Service 6 Set Date / Time Press the LEVEL keys to move
cursor, the number keys to set
date / time, and the ENTER key
to save.
Service 7 Export and Import Parameter Export Parameter - Export all
parameters to a USB device.
Import Parameter 1 - Imports the
engineer parameters to a USB
device except serial number,
accumulated distance and time.
Import Parameter 2 - Imports the
engineer parameters to a USB
device including serial number,
accumulated distance and time.

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8.1 ELECTRICAL DIAGRAM
CHAPTER 8: TROUBLESHOOTING

13
8.2 ERROR CODES ON THE CONSOLE
CODE CLASS DESCRIPTION SOLUTION
0x02AB C Machine type error. Set the correct machine type in
Engineering Mode.
0x02B3 C Resistance type error. Set the correct machine type in
Engineering Mode.
0x0201 A Low voltage on the battery
(voltage under 11.2V).
Charge by running or by plugging
in the AC adapter.
0x0247 B LCB failed (memory write error /
feedback ADC error).
Replace the LCB.
0x0248 B Battery failure or disconnection
(Voltage under 8V or over 15V).
Check the wire connections at
the battery. Replace the battery.
0x0441 B When the UCB implements
a command, the LCB is not
receiving this command.
Check the machine type in
Engineering Mode. Check the
connections at the UCB and LCB.
0x04A0 C Digital Communication Failure.
LCB has no return message for
the UCB for 3 seconds.
Check the console cable
connections at the UCB and
LCB. Replace the UCB or LCB
as needed.
0x04B0 C UCB No Response. Check the console cable
connections at the UCB and
LCB. Replace the UCB or LCB
as needed.
CLASS C ERRORS WILL DISPLAY ON THE CONSOLE.
CLASS A OR B ERRORS WILL ONLY DISPLAY IN SERVICE MODE 5.
CHAPTER 8: TROUBLESHOOTING

14
LED INDICATOR DESCRIPTION
LED 1 RPM (AC Plug In).
LED 2 +5V
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).
LED 9 +12V (Console Power).
WITHOUT AC PLUG - NORMAL
LED 2 - LED 9 - On.
LED 1 - Off (No AC plug detected).
LED 5 - On (Generator power detected),
WITH AC PLUG - NORMAL
LED 2 - LED 9 - On.
LED 1 - On (AC plug detected).
LED 5 - Off (No Generator power detected). LED 1
LED 5
8.3 LCB LED INSTRUCTIONS
CHAPTER 8: TROUBLESHOOTING

15
NO DISPLAY ON THE CONSOLE OR THE DISPLAY IS DIM WHEN RUNNING
SYMPTOM: The console will not power up or the display is dim.
CHECK POINT POSSIBLE ISSUE SOLUTION
LEDs 2, 3, 4, 6, and 7 should be ON. If they are OFF, the LCB is damaged. Replace the LCB.
If LED 1 is OFF. No AC power cord plugged in. Normal for an non-powered unit.
If LED 5 is OFF. Generator has no RPM output. Normal for a powered unit. If non-powered
and issue is still present, replace the
generator.
If LED 8 is OFF. Bad communication between UCB and LCB. Reconnect the console cable at the LCB and
UCB and check for kinks.
If LED 9 is OFF. LCB is not providing 12V power to the UCB. Replace the LCB.
SOLUTION IF LEDS ARE NORMAL:
1) If the LEDs are lit normally, replace the UCB and console cable.
2) if the issue is still present after the UCB and console cable are replaced, replace the LCB.
LED 1
LED 5
LED 9
LED 8
8.4 TROUBLESHOOTING - DISPLAY ISSUES
CHAPTER 8: TROUBLESHOOTING

16
8.5 TROUBLESHOOTING - ERROR 0x04A0
ERROR 0x04A0 (DIGITAL COMMUNICATION FAILURE)
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. Replace the LCB.
If LED1 is OFF. No AC power cord plugged in. Normal for an non-powered unit.
If LED 8 is OFF. Bad communication between UCB and LCB. Reconnect the console cable at the LCB and
UCB and check for kinks.
SOLUTION IF LEDS ARE NORMAL:
1) If the LEDs are lit normally, replace the UCB and console cable.
2) if the issue is still present after the UCB and console cable are replaced, replace the LCB.
LED 1
LED 8
CHAPTER 8: TROUBLESHOOTING

17
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. Press and hold both the UP and DOWN LEVEL keys until Manager Mode appears on the display.
b. Use the UP and DOWN LEVEL keys to scroll to Service Mode 5 and press ENTER.
c. Test the affected keypad. If the keypad works in the keypad test it may not be a functioning key in the program used for testing it.
2) 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.
3) Replace the affected keypad.
4) Replace the UCB.
FIGURE A FIGURE B
8.6 TROUBLESHOOTING - KEYPAD ISSUES
CHAPTER 8: TROUBLESHOOTING