Dyaco RT86 - Y75 User manual

R RT T8 86 6 - - Y Y7 75 5 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 C Co on nt te en nt ts s
T
Ta ab bl le e o of f C Co on nt te en nt ts s 1 1
TABLE OF CONTENTS
Table of Contents...................................................................... 1
Table of Figures........................................................................ 3
Description................................................................................ 4
AELECTRICAL CONFIGURATION....................................... 4
1. RT86-Y75 Treadmill components................................ 4
BGENERAL INFORMATION................................................. 5
1. Console ......................................................................... 5
2. Main controller.............................................................. 5
3. Treadmill motor............................................................ 5
4. Incline motor................................................................. 5
Operation................................................................................... 7
AWINDOW DISPLAY MODE ............................................... 7
1. OFF Mode..................................................................... 7
2. READY Mode .............................................................. 7
3. SLEEP Mode ................................................................ 7
4. RUN Mode.................................................................... 8
BFUNCTION ........................................................................ 9
1. SPEED .......................................................................... 9
2. Incline ........................................................................... 9
3. TIME............................................................................. 9
4. DISTANCE................................................................. 10
5. CALORIES................................................................. 10
6. PULSE ........................................................................ 10
7. LAPS........................................................................... 10
8. SCAN.......................................................................... 10
CFUNCTION BUTTON IN MAIN MODE............................. 11
1. READY MODE.......................................................... 11
2. SLEEP MODE............................................................ 12
3. RUN MODE ............................................................... 12
DCALIBRATION PROCEDURE........................................... 14
1. Calibration................................................................... 14

S
Se er rv vi ic ce e M Ma an nu ua al l
T Ta ab bl le e o of f C Co on nt te en nt ts s
T
Ta ab bl le e o of f C Co on nt te en nt ts s 2 2
Troubleshooting...................................................................... 15
1. General........................................................................ 15
2. Troubleshooting Matrix.............................................. 16
3. controller debugging form .......................................... 24
Diagrams and Schematics....................................................... 25
APPENDIX A......................................................................... 29
1. TREADBELT ADJUSTMENT.................................. 29
APPENDIX B......................................................................... 31
1. TREADMILL LUBRICATION ................................. 31
APPENDIX C......................................................................... 32
1. RESET SWITCH RESETTING................................. 32
APPENDIX D......................................................................... 33
1. FUSE REPLACEMENT............................................. 33
APPENDIX E ......................................................................... 34
1. SPEED SENSOR ADJUSTMENT............................. 34
2. SERVICE QUESTIONS............................................. 34

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........................................................ 25
Figure 3 Mechanical Layout.................................................. 25
Figure 4 Main Controller information & voltages................. 26
Figure 5 Function JK1 connector on Main Controller........... 26
Figure 6 Wiring Diagram....................................................... 27
Figure 7 Schematic Diagram ................................................. 28
Figure 8 If Treadbelt slips...................................................... 29
Figure 9 If tread belt shifts too far to the Right ..................... 29
Figure 10 If tread belt shifts too far to the Left...................... 30
Figure 11 Resetting Reset switch........................................... 32
Figure 12 Fuse replacement................................................... 33

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 ELECTRICAL CONFIGURATION
Note: Electrical servicing of this treadmill is limited to board
level replacement.
1. RT86-Y75 TREADMILL COMPONENTS
a) Safety Key:
In dangerous condition, please pull safety key away which is
red. At the some time, the treadmill will be stop.
b) Console:
Interface that control all functions of the treadmill.
c) Main controller:
A circuit board that incorporates the DC power supply and
takes input from the console and sends out appropriate
voltages that control the treadmill functions.
d) Treadmill motor:
This is a variable speed, to control D.C. motor（90 voltage）
that powers the main running belt.
e) Incline motor:
An AC reversing motor that sets the incline of the treadmill.

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
B GENERAL INFORMATION
1. CONSOLE
a) Contains 3 windows which are twenty rows “dots” (8high)
indicate each segment of a workout.
2. MAIN CONTROLLER
a) Contains power supply and control circuits
3. TREADMILL MOTOR
a) Variable speed reversing 0-90 volt DC motor.
b) Have three wires red, black and green.
c) If there is DC voltage on the Red wire (M+) the treadmill
motor will turn clockwise.
d) If there is DC voltage on the Black wire (M-) the treadmill
motor will turn counter-clockwise
e) The green wire is ground.
4. INCLINE MOTOR
a) Reversing 115 volts 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 (DOWN) the incline
motor will increase the incline.
e) If there is AC voltage on the Black wire (UP) 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 WINDOW DISPLAY MODE
1. OFF MODE
a) When user doesn’t insert the SAFETY KEY on the console, the
treadmill enters the OFF Mode and Dot Matrix windows will
display. Please install safety key to start.
2. READY MODE
a) When the treadmill has been power on and set the safety key on
the console, all light will be to light.
b) Console will display current software version in dot matrix
window; DISTANCE window displays total accumulated
working distance; TIME window displays total accumulated
working time.
c) In READY Mode, if user doesn’t press any button for 30
minutes it will automatically turn off (blank out).
d) Press START button to start treadmill on P0(Manual) Mode.
e) Press PROGRAM UP/DOWN button to select program P1~U2
3. SLEEP MODE
a) When nobody to use the treadmill, the console will into SLEEP
Mode. If any buttons are pressed, the treadmill enters READY
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
4. RUN MODE
a) In RUN Mode, pressing the “STOP” button or pull away the
safety key that will cause the treadmill stop instantly and enter
OFF Mode.
b) Display will automatically shift every 3 seconds.
c) Press “SELECT” button to exchange the displaying of LED
which includes laps of Track, Incline profile and Speed profile.
d) Enter button: Exchange display windows.

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
B FUNCTION
1. SPEED
a) DISPLAY range is 0.0 to 99.9 MPH.
b) WORK range is 0.6 to 10.0 MPH.
c) Press “FAST” or ”SLOW” to adjust speed, each increment and
decrement is 0.1mph/kph.
2. INCLINE
a) Display the incline position from 0 to 15.
b) DISPLAY range is 0 to 999.
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 and
decrement is 1.
3. TIME
a) In RUN Mode, TIME divides into COUNT UP and 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 99:59.
e) When TIME is set, the count will go to zero.

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
4. DISTANCE
a) In RUN Mode, DISTANCE preset is COUNT UP.
b) DISPLAY range is 0.00 to 999.
c) WORK range is 0.0 to 999.
d) In Ready Mode, press the “START” button that DISTANCE
value will still display and save all data. If RUN Mode is
entered, the distance will count up again.
5. CALORIES
a) In RUN Mode, CALORIES preset is COUNT UP.
b) DISPLAY range is 0.0 to 999.
c) WORK range is 0.0 to 999.
d) In Ready Mode, press the “START” button to save value of
distance and entering “RUN Mode” again that value will
continue count up time.
6. PULSE
a) In RUN Mode, DISPLAY range is 0 to 999.
b) WORK range is 40 to 240.
7. LAPS
a) Display your current laps. (One lap means 0.25mile or 0.4km).
8. SCAN
a) Display will automatically shift every 3 seconds.
b) At the Dot Matrix window that displays profiles of speed and
incline which will shift every 3seconds.

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
C FUNCTION BUTTON IN MAIN MODE
1. READY MODE
a) In “READY” mode, user could choose any program which
includes P0, P1, P2, P3, P4, P5, U1, U2 by press program
button or press “START” button to execute directly.
b) START button: When press “START” button, there will be 3
warning beep, then machine starts running. In P0, treadmill
starts at MIN SPEED and treadmill starts at preset program
value in PROGRAM.
c) When press the “Stop” button once, pause is executed. If press
“Stop” button a second time, the program will end and a
workout summary will be displayed. If press “Stop” button a
third time, the console will return to the idle mode (start up)
screen. If the Stop button is held down for more than 3 seconds
the console will reset.
d) PROGRAM UP/DOWN button: Press ”PROGRAM
UP/DOWN” button to choose a program.
e) SELECT button: None-function.
f) ENTER button: Press “ENTER ” button to setup parameters.
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) RAPID SPEED button: 5 preset buttons for rapid speed: 2 kph /
2 mph, 4 kph / 4 mph, 6 kph / 6 mph, 8kph / 8 mph, and
10kph / 10 mph.

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
l) RAPID INCLINE button: 5 preset buttons for rapid incline: 2, 4,
6, 8, 10.
2. SLEEP MODE
a) In SLEEP Mode, if any button is pressed then the treadmill
enters READY Mode.
3. RUN MODE
a) STOP button: press “STOP” button to stop and enter READY
Mode.
b) START button: non-functional.
c) SELECT button: press “SELECT” button to select displaying
mode and the LED will be light per your current mode.
d) Enter button: Exchange display windows.
e) In “SCAN” mode, display automatically shifts every 3 seconds
and the LED light will flash per your current profile.
f) FAST button: Press the button to increase your speed and each
increase is 0.1mph/km. If button is pressed continuously then
speed increases to MAX SPEED quickly.
g) SLOW button: Press the button to decrease your speed and
each decrease is 0.1mph/km. If button is pressed continuously
then speed decreases to MIN SPEED quickly.
h) UP button: Press the button to increase your incline and each
increase is 1 level. If button is pressed continuously then
incline increases to MAX incline quickly.
→TRACK→SPEED PROFILE→INCLINE PROFILE→TRACK

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 13 3
i) DOWN button: Press the button to decrease your incline and
each decrease is 1 level. If button is pressed continuously then
incline decreases to MIN incline quickly.
j) PROGRAM button: non-function.
k) RAPID SPEED button: Speed will set to 2 kph / 2 mph, 4 kph /
4 mph, 6 kph / 6 mph, 8kph / 8 mph, and 10kph / 10 mph
quickly.
l) RAPID SPEED button: Incline will set to 2, 4, 6, 8, 10 position
quickly.

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 14 4
D CALIBRATION PROCEDURE
1. CALIBRATION
a) Turn on power.
b) Press “START” and “FAST” button at the same time.
c) Set the safety key in right position on console. That will
display ”FACTORY SETTING PRESS NETER” in dot matrix
window.
d) Km/Mile Mode: Press “ENTER” to choose the unit mode and
in Dot Matrix will display ”UNIT ENGLISH”, press “FAST”
button to change to Mile which will display ”UNIT METRIC.
e) Set wheel size: Press “ENTER” button to set “WHEEL SIZE”
and in “TIME” window will display 2.5(preset value). Dot
Matrix will display “ADJUST WHEEL SIZE THEN PRESS
ENTER” then adjust the value 2.3.
f) Set Min. speed: Press “ENTER” button to set the minimum
speed that will display the value 1.0 in the TIME window. Dot
Matrix will display ”ADJUST MIN SPEED THEN PRESS
ENTER”. then adjust the value “0.6”.
g) Set Max. speed: Press “ENTER” button to set the high speed
that will display the value 10 in TIME window. Dot Matrix will
display ”ADJUST MIN SPEED THEN PRESS ENTER” then
adjust the value “10.0”.
h) Set Max. elevation: In “TIME” window displays “MAX
ELEVATION” and in Dot Matrix window displays “ADJUST
MAX ELEVATION THEN PRESS START TO
CALIBRATION”.
i) Press “FAST/SLOW” buttons to adjust the setting values.
j) After correcting, treadmill would 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 15 5
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 16 6
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.
When insert safe key, no
display on monitor.
1 Haven’t switch ON/OFF switch.
2 12PIN Computer connector not plugged in properly.
3 12PIN computer cable is broken.
4 Fuse on controller is blown.
5 Varistor on controller is blown.
6 Reed switch of console is broken. (open)
7 Other components are faulty.
1 Switch the A.C switch.
2 Please check the wire and connect
again.
3 Replace 12PIN computer cable.
4 Replace fuse or controller.
5 Replace varistor or controller.
6 Replace 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 17 7
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
250 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,
treadmill can’t stop. 1. Reed switch of console is broken. 1. Replace with new reed switch or console.
LEDs not bright,
incomplete or imperfect. 1. LED light is broken. 2. Power to console too low. 1. Replace with new console. 2. Check AC power is 103-127V.

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
3. Check power to console.
4.Replace lower controller.
LED displays not bright,
incomplete or imperfect. 1. LED 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
“LOW SPEED” 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 “LOW
SPEED” 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)
6. 12 PIN computer cable connected improperly.
1. Adjust the distance to 5mm between
speed sensor and magnet.
2. Replace “12C508A” or controller.
3. Replace a magnet.
4. Use metal material to test the magnet.
5. Replace sensor cable.
6. Plug the cable again on controller,