Xterra ET94 User manual

E
ET T9 94 4 T Tr re ea ad dm mi il ll l
S
Se er rv vi ic ce e M Ma an nu ua al l

WARNING:
ALWAYS UNPLUG THE TREADMILL FROM THE ELECTRICAL
OUTLET BEFORE SERVICING THE UNIT.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Ta ab bl le e o of f F Fi ig gu ur re es s
T
Ta ab bl le e o of f F Fi ig gu ur re es s 3 3
TABLE OF FIGURES
Figure 1 Operational Flowchart ............................................... 6
Figure 2 Console Layout........................................................ 23
Figure 3 Mechanical Layout .................................................. 23
Figure 4 Main Controller information & voltages................. 24
Figure 5 Function JK1 connector on Main Controller........... 24
Figure 6 Wiring Diagram....................................................... 25
Figure 7 Schematic Diagram ................................................. 25
Figure 8 If Treadbelt slips...................................................... 26
Figure 9 If tread belt shifts too far to the Right ..................... 26
Figure 10 If tread belt shifts too far to the Left...................... 27
Figure 11 Resetting Reset switch........................................... 29
Figure 12 Fuse replacement................................................... 30

S
Se er rv vi ic ce e M Ma an nu ua al l
D De es sc cr ri ip pt ti io on n
D
De es sc cr ri ip pt ti io on n 4 4
DESCRIPTION
A E LECTRICAL C ONFIGURATION
Note: Electrical servicing of this treadmill is limited to board
level replacement.
1. 1612275 TREADMILL COMPONENTS
a) Safety key:
To fits on the Console that activate all functions. If no safety
key, console can not be controlled.
b) Console:
Interface that controls all functions of the treadmill.
c) Main controller:
The circuit board consist of the DC power supply and takes
input from the console and output appropriate voltages that
control the treadmill functions.
d) Treadmill motor:
This is a variable speed for DC motor. To control the 0 – 90
volt on the main controller, it can to increase or decrease
speed of running belt.
e) Incline motor:
This is an ac motor. User can to control variable elevation
by console within main controller.

S
Se er rv vi ic ce e M Ma an nu ua al l
D De es sc cr ri ip pt ti io on n
D
De es sc cr ri ip pt ti io on n 5 5
General Information
2. CONSOLE
a) Contains touch controls of buttons and LCD Display.
3. MAIN CONTROLLER
a) Include power supply 、 motor driver control circuit and incline
control circuit.
4. TREADMILL MOTOR
a) It’s a variable speed on 0-90 volt DC motor.
b) Have three wires red, black and green.
c) If there is positive of DC voltage on the Red wire (M+) the
treadmill motor will turn clockwise.
d) If there is positive of DC voltage on the Black wire (M-) the
treadmill motor will turn counter-clockwise.
e) The green wire is ground.
5. INCLINE MOTOR
a) This is a 110 volt AC motor.
b) Have four wires, red, black, white and green.
c) Has one 3 pins cable of position sensor.
d) If there is AC voltage on the Red wire (UP) the incline motor will
increase the incline.
e) If there is AC voltage on the Black wire (DOWN) the incline
motor will decrease the incline.
f) The White wire (COM) is neutral.

S
Se er rv vi ic ce e M Ma an nu ua al l
D De es sc cr ri ip pt ti io on n
D
De es sc cr ri ip pt ti io on n 6 6
Figure 1 Operational Flowchart

S
Se er rv vi ic ce e M Ma an nu ua al l
O Op pe er ra at ti io on n
O
Op pe er ra at ti io on n 7 7
OPERATION
A W INDOW D ISPLAY M ODE
1. OFF MODE
a) When user doesn’t insert the SAFETY KEY on the console, the
treadmill enters the OFF Mode and all windows will appear
blank.
2. READY MODE
a) When the treadmill is ON and SAFETY KEY is inserted in
console, the message window will show “SELECT A
PROGRAM OR PRESS START TO BEGIN WORKOUT”
b) Press START button to start treadmill on Manual Mode.
3. SLEEP MODE
a) In SLEEP Mode, if “START” button is pressed then the
treadmill enters READY Mode.
4. RUN MODE
a) In RUN Mode, pressing the “STOP” button and removing the
SAFETY KEY will cause the treadmill stop instantly and enter
OFF Mode.

S
Se er rv vi ic ce e M Ma an nu ua al l
O Op pe er ra at ti io on n
O
Op pe er ra at ti io on n 8 8
B F UNCTION
1. SPEED
a) Display the current speed in Mile per hour.
b) DISPLAY range is 0.0 to 99.9 MPH.
c) WORK range is 0.5 to 12.0 M.
d) Press “FAST” or ”SLOW” to adjust speed, each increment and
decrement is 0.1 M.
2. INCLINE
a) Display the incline position from 0 to 15.
b) DISPLAY range is 0 to 99.
c) WORK range is 0 to 15.
d) INCLINE preset value is 0 to 15.
e) Press “UP” or ”DOWN” to adjust incline, each increment or
decrement is 1.
3. TIME
a) TIME is either COUNT UP or COUNT DOWN. System preset
is COUNT UP; if user sets the time then timer is COUNT
DOWN.
b) DISPLAY range is 0:00 to 99:99.
c) WORK range is 0:00 to 99:59.
d) COUNT DOWN setup range is 10:00 to 99:00.
e) When TIME is set, the count will go to zero.
f) In RUN Mode, press “START” button to save value of time and
enter “RUN Mode” again that value will continue count up time.

S
Se er rv vi ic ce e M Ma an nu ua al l
O Op pe er ra at ti io on n
O
Op pe er ra at ti io on n 9 9
4. PROGRAM / LAPS
a) Display the total working lap quantity on LAPS window.
PROGRAM state display in Dot Matrix window, have speed and
incline profile. Pressing “SELECT” button will toggle between
them.
b) DISPLAY range is 0 to 99.
c) WORK range is 0 to 99.
d) Displays total lap quantity.
e) One lap of Playground is 0.25 Mile.
5. DISTANCE
a) Display the current distance in Mile.
b) DISPLAY range is 0.00 to 99.99.
c) WORK range is 0.00 to 99.99.
6. CALORIES
a) Displays the cumulative calories burned at any given time during
your workout.
b) DISPLAY range is 0.0 to 999.9.
c) WORK range is 0.0 to 999.9.
7. PULSE
a) Display the heart beat by using hand pulse or receiver. If user
wants to use receiver, then a chest belt must be worn.
b) DISPLAY range is 0 to 999.
c) WORK range is 40 to 220.
d) In RUN Mode, if the treadmill doesn’t have a signal for 8
seconds then display value will become “P”.

S
Se er rv vi ic ce e M Ma an nu ua al l
O Op pe er ra at ti io on n
O
Op pe er ra at ti io on n 1 10 0
C F UNCTION B UTTON I N M AIN M ODE
1. READY MODE
a) SAFETY KEY: Put safety key in position to power on the
computer. When safety key is pulled away from its position, the
computer will be automatically shut down.
b) STOP button: Non-function.
c) START button: Pressing “ START ” button to start treadmill,
When pressing “ START ” button, there will be 3 second final
count down on window display, then machine starts running. In
MANUAL, treadmill starts at MIN SPEED and treadmill starts at
program preset value in PROGRAM.
d) ENTER button: Press “ENTER” button to change each
function. MANUAL can set using time, Pre-set PROGRAM
can set using time and speed, Heart Rate Control 1~2 can set
time, age and the value of heart rate. User Program 1~2 can
set time, speed and incline.
e) PROGRAM button: Press PROGRAM button to select
manual, preset program 、 user program and HRC program.
f) SELECT button: In program mode, press SELECT button to
choose speed profile, incline profile or speed and incline profile.
g) FAST button: If user doesn’t enter a setting then this button is
non-functional.
h) SLOW button: If user doesn’t enter a setting then this button is
non- functional.
i) UP button: If user doesn’t enter a setting then this button is non-
functional.
j) DOWN button: If user doesn’t enter a setting then this button is
non- functional.
k) SPEED RAPID button: 5 preset buttons for rapid speed: 2 mph,
4 mph, 6 mph, 8 mph, and 10 mph.
l) INCLINE RAPID button: 5 preset buttons for rapid incline: 2, 4,
6, 8, 10.

S
Se er rv vi ic ce e M Ma an nu ua al l
O Op pe er ra at ti io on n
O
Op pe er ra at ti io on n 1 11 1
m) Disable button: To turn on or turn off “FAST 、 SLOW” or
“U P、 DOWN” buttons control function on the handlebar at the
same time.
2. RUN MODE
a) SAFETY KEY: When safety key is pulled away from its position,
the computer will be automatically shut down.
b) STOP button: press “STOP” button to stop treadmill.
c) START button: non-functional.
d) ENTER button: Exchange display between LAPS and operation
mode.
e) Program button: non-functional.
f) SELECT button: Exchange display between speed profile and
incline profile.
g) FAST button: Press the button to increase your speed and each
increase is 0.1 kph. If button is pressed continuously then speed
increases to MAX SPEED quickly.
h) SLOW button: Press the button to decrease your speed and each
decrease is 0.1kph. If button is pressed continuously then speed
decreases to MIN SPEED quickly.
i) UP button: Press the button to raise position and each increase is
1, the maximum incline position is 15.
j) DOWN button: Press the button to raise position and each
decrease is 1, the minimum incline position is 0.
k) SPEED RAPID button: Speed will set quickly to 2 mph, 4 mph,
6 mph, 8 mph, and 10mph.
l) INCLINE RAPID button: Incline will set quickly to 2, 4, 6, 8, 10
position.
m) DISABLE button: To turn on or turn off “FAST 、 SLOW” or
“U P、 DOWN” buttons control function on the handlebar at the
same time.

S
Se er rv vi ic ce e M Ma an nu ua al l
O Op pe er ra at ti io on n
O
Op pe er ra at ti io on n 1 12 2
D C ALIBRATION P ROCEDURE
1. CALIBRATION
a) Turn on power.
b) Press and hold “START” and “FAST” button at the same time.
c) Inserts the SAFETY KEY on console, all windows will appear
blank.
d) Km/Mile Mode: Press “STOP” button to exchange to Mile Mode
(English) in SPEED window and the value is M.
e) Set wheel size: Press “FAST” or “SLOW” button to adjust
SPEED window to 2.3.
f) Press “START” button to memorize above setting and enter
next section of setting mode.
g) Set Min. speed: Press “FAST” or “SLOW” button to adjust
SPEED window to 0.5.
h) Press “START” button to memorize above setting and enter
next section of setting mode.
i) Set high speed: Press “FAST” or “SLOW” button to adjust
SPEED window to 12.0.
j) Set high incline position: Press “UP” or “DOWN” button to
adjust INCLINE window to 15.
k) Set grade to initial function: default is ON.
l) Press “START” button to memorize all value, the treadmill will
calibrate automatically.
m) After calibrating, treadmill will reset then enter “READY
MODE”.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 13 3
TROUBLESHOOTING
WARNING:
ALWAYS UNPLUG THE TREADMILL FROM THE ELECTRICAL
OUTLET BEFORE SERVICING THE UNIT.
1. GENERAL
a) Do a visual check of all wiring and connections looking for
chafed wires or lose connections.
b) Make sure any wiring is safely positioned and/or secured away
from moving parts.
c) If you find a fuse blown on a circuit board replace the circuit
board.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 14 4
2. TROUBLESHOOTING MATRIX
Condition Reason Solve
When turn on power,
ON/OFF switch isn’t lit.
1. Power cord isn’t plugged into outlet.
2. Power cord isn’t plug into unit.
3. The voltage of outlet is too low.
4. Plug or connector of power cord is open.
5. Connector of power cord is broken.
6. Connecting cable disconnected.
7. Breaker tripped.
8. Breaker is broken.
9. ON/OFF switch is broken.
1. Plug the power cord into outlet.
2. Plug the power cord into unit.
3. Check the voltage of outlet.
4. Replace power cord.
5. Replace power cord.
6. Check if wire is disconnected, connect it
again.
7. Press the small red button to return to
original status.
8. Replace breaker.
9. Replace A.C switch.
After turning on power,
treadmill has a popping
sound.
1. Incorrect input power, varistor is blown broken on
controller.
1. Check the voltage of power is 110-
120V. Replace controller.
When insert safe key, no
display on monitor.
1. Haven’t switch ON/OFF switch.
2. Insert the Safe key on wrong position.
3. 12PIN computer connecter not plugged in properly.
4. 12PIN computer cable is broken.
1. Switch the A.C switch.
2. Insert the safe key on right position.
3. Please check the wire and connect
again.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 15 5
5. Fuse on controller is blown.
6. Varistor on controller is blown.
7. Reed switch of console is broken. (open)
8. Other components are faulty.
4. Replace 12PIN computer cable.
5. Replace fuse or controller.
6. Replace varistor or controller.
7. Replace reed switch or console.
8. Replace console.
With no safe key but
treadmill could display or
operate
1. Reed switch of console is broken. (short)
2. Have other magnetic components on console.
1. Replace reed switch or console.
2. Remove magnetic component beside safe key.
When press “START”,
treadmill doesn’t start.
1. Motor M+ or M- wire isn’t connected into right position.
2. Controller is broken. (No power to motor)
3. Motor is broken.
4. Treadmill controller shut down and LED would be ON.
1. Please check and plug again.
2. Replace controller or MOSFET IRFP 260
and add the Silicone Heat Sink Paste
suitably.
3. Replace motor or check the wire and
connector if it was broken.
4. Turn off the AC switch and turn on power
again.
Treadmill stops or shuts off
by itself.
1. House breaker tripped.
2. Treadmill breaker tripped.
3. Treadmill controller fuse is broken.
4. Treadmill controller shut down and LED would be ON.
1. Reset it.
2. Reset treadmill breaker.
3. Replace with new fuse
4. Turn off the AC switch and turn on power
again.
After removing safe key, 1. Reed switch of console is broken. 1. Replace with new reed switch or console.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 16 6
treadmill can’t stop.
LCD not bright, incomplete
or imperfect.
1. LCD light is broken.
2. Power to console too low.
1. Replace with new LCD or console.
2. Check AC power is 110-120V.
3. Check power to console.
4. Replace lower controller.
LCD displays not bright,
incomplete or imperfect.
1. LCD displays are broken. 1. Replace with new console and calibrate it.
When press “START”
button to start treadmill,
running belt isn’t running
and window displays “LS”
error message after 8
seconds.
1. Controller experienced unusual shut down; the S_D light
will be always bright. (Controller debugging form)
2. Motor wires (red, black) aren’t plugged into controller.
3. Computer cables not connected properly.
4. Computer cables are broken or damaged.
5. Motor belt is broken.
6. Controller is broken.
7. Motor is broken.
8. Console is broken.
1. Turn off power and reset the treadmill.
2. Plug wires again.
3. Plug the wire again on controller, connector
and console.
4. Replace with new wires.
5. Replace with new motor belt.
6. Replace with new controller.
7. Replace with new motor.
8. Replace with new console.
When press “START”
button to start treadmill,
running belt is running but
window displays “LS”
error
message after 8 seconds.
1. Misalignment between speed sensor and magnet.
2. The 12C508A was broken on the controller.
3. Magnet missing.
4. Magnet de-magnetized.
5. Speed sensor cable is broken. (short)
1. Adjust the distance to 5mm between
speed sensor and magnet.
2. Replace “12C508A” or controller.
3. Replace a magnet.
4. When the machine has started, check the DC

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 17 7
*Speed sensor cable was
broken,(open) console can’t
receive the speed.
6. 12 PIN computer cable connected improperly.
7. 12 PIN computer cable is broken.
8. Console is broken.
voltage between black and white wires of the
sensor. DC voltage requires over 4 ,
When the magnet is too far away, there is
no output voltage.
5. Replace sensor cable.
6. Plug the cable again on controller,
connector and console.
7. Gray and purple wires got damage,
replace the wires.
8. Replace console.
SPEED windows display is
not 1.0 to 16.0 km
1. Monitor is not calibrated. 1. Calibrate the console
INCLINE windows display
is not 0 to 10
1. Console is not calibrated. 1. Calibrate the console.
The speed of the belt
doesn’t match console
display.
1. Console is not calibrated. 1. Calibrate the console
The incline position doesn’t
match console
1. Console is not calibrated. 1. Calibrate the console.
INCLINE window displays
“E2”.
1. Position sensor value of incline motor is wrong. 1. Turn off the AC switch and turn on power
again.
2. Calibrate the monitor.
INCLINE window displays 1. Position sensor value of incline motor is wrong. 1. Turn off power and reset the treadmill.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 18 8
“E2” during training.
INCLINE window displays
“----”.
1. Position sensor value of incline motor is wrong. 1. Check the 3 pins cable of the incline motor.
TIME window display
“Err”
1. EEPROM is broken. 1. Replace with new console and calibrate it.
After pressing “START”
button, the treadmill stops
immediately.
1. Controller is broken. 1. Turn off the AC switch and turn on power
again.
2. Replace controller and calibrate it.
Erratic pulse display. 1. Another chest belt in use around treadmill.
2. Other magnetic field disturbance.
3. Receiver is broken.
1. Check for other chest belt use around
treadmill.
2. Change the position or direction of treadmill
.
3. Replace with new receiver.
After pressing “START”
button, the treadmill stop
immediately.
1. Controller was broken. 1. Replace with new controller and calibrate it.
FAST/SLOW button of
SPEED ADJUSTMENT
SWITCH can’t be used.
1 The connector of SPEED CABLE (UPPER) and
CONSOLE not connected properly.
2 The connector of SPEED CABLE (UPPER) and SPEED
ADJUSTMENT SWITCH W/CABLE not connected
properly.
1. Connect cables again.
2. Connect cables again.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 1 19 9
Speed button just can press
FAST, can’t press SLOW.
Speed button just can press
SLOW, can’t press FAST.
3 The connector of SPEED CABLE (UPPER) or
SPEED ADJUSTMENT SWITCH/W/CABLE is
damaged.
4. Button of SPEED ADJUSTMENT SWITCH is broken.
5. The connector of SPEED CABLE (UPPER) or SPEED
ADJUSTMENT SWITCH/W/CABLE is damaged.
6. The connector of SPEED CABLE (UPPER) or SPEED
ADJUSTMENT SWITCH/W/CABLE is damaged.
3. Connect cable again.
4. Replace with new buttons.
5. Replace with new cable.
6. Replace with new cable.
UP/DOWN button of
INCLINE ADJUSTMENT
SWITCH can’t be used.
Incline button just can
press UP, can’t press
DOWN.
Incline button just can press
DOWN, can’t press UP.
1 The connector of INCLINE CABLE (UPPER)
and CONSOLE not connected properly.
2. The connector of INCLINE CABLE (UPPER)
and INCLINE ADJUSTMENT SWITCH W/CABLE not
connected properly.
3 The connector of INCLINE CABLE (UPPER) or
INCLINE ADJUSTMENT SWITCH CABLE
got damage.
4. Button of INCLINE ADJUSTMENT SWITCH is broken.
5. The connector of INCLINE CABLE (UPPER) or
INCLINE ADJUSTMENT SWITCH CABLE
got damage.
6. The connector of INCLINE CABLE (UPPER) or
INCLINE ADJUSTMENT SWITCH CABLE
1 Connect the wires again.
2. Connect the wires again.
3. Replace the cable.
4. Replace buttons.
5. Replace the cable.
6. Replace the cable.

S
Se er rv vi ic ce e M Ma an nu ua al l
T Tr ro ou ub bl le es sh ho oo ot ti in ng g
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g 2 20 0
damaged.
Hand pulse lost its function.
(No pulse displayed on
monitor)
1. Hands not on the hand pulse sensors or only one hand on
sensor.
2. The connector of HANDPULSE W/WIRE and Console
not connected properly.
3. The wires got damaged when connecting the
HANDPULSE W/WIRE and Console.
4. Hand pulse board is broken.
1. Two hands hold the hand pulse.
2. Connect the cable again.
3. Replace with new cable.
4. Replace console or Hand pulse board.
Wireless lost its function.
(No pulse displayed on
monitor)
1. Chest belt not worn properly.
2. Distance is too far and exceeds range of receiver.
3. Chest belt battery is weak or dead.
1. Check chest belt has proper contact with skin
and is oriented correctly.
2. User chest belt in front of console within 3
feet.
3. Replace with new lithium battery type is
CR2032.
Chest belt too close to the
treadmill.
Weak battery. Replace with new lithium battery with type
CR2032.
Tread belt does not run in
center.
Tread belt tension not even across tread belt.
See treadbelt adjustment
(see Appendix A)
Tread belt hesitates while
being stepped on.
Insufficient lubricant on tread belt.
Tread belt tension insufficient
See treadbelt lubrication (see Appendix B)
Tension Belt (see Appendix A )
Black particles collecting Drive belt is breaking in. Vacuum under treadmill periodically.