Dyaco XT660B-A912 User manual

XT660B-A912
Treadmill
Service Manual
(110~120V & 220~230V)

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-------------------------------------------Table of Contents-------------------------------------------
1. Treadmill Outlines
2. Electronic Parts
2.1 Upper Controllers
2.2 Lower Controller and driver
3. Electrical Configuration
4. Treadmill Operation
5. Unit Block Diagrams
6. Basic Connections and Wiring
6.1 Display Board Wire Connections
6.2 Display Board PCB Component Locations
6.3 Amplifier Board Wire Connections
6.4 Driver Board Wire Connections
6.5 Driver Board PCB Component Locations
6.6 Driver Board LED Indicator Locations
6.7 Controller Indicator LED Debugging
6.8 Driver Board Function
7. Product Safety Instructions
7.1 Important Safety Instructions
7.2 Important Electrical Instructions
7.3 Important Grounding Instructions
8. Error Messages and Troubleshooting for Electronic Issues
8.1 Error Message: LS1/LOW SPEED/LOSE SPEED
8.2 Error Message: E1/RAM ERROR
8.3 Error Message: INCLINE E2/Err
8.4 Circuit Diagram
8.5 Calibration Procedure
8.6 MAINTENANCE MENU
8.7 Troubleshooting Procedure Matrix for Electronic Issues
9. Treadmill Folding/Unfolding and Transport
10.General Maintenance
10.1 Tread Belt and Deck
11.Installation of the Incline Motor
12.Disassembling and Assembling of Parts

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12.1 Lower Controller Replacement
12.2 Console Replacement
12.3 Motor Replacement
12.4 Breaker Replacement
12.5 AC Power Switch Replacement
12.6 Front/ Rear Roller Replacement
12.7 Running Deck/ Belt & Cushion Replacement
12.8 Speed Sensor Replacement
12.9 Incline Motor Replacement

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1. Treadmill Outlines

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Console
Hand
P
ulse
Sensor
Incline
adjustment
button
Speed
adjustment
button

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Incline Motor
Lower
Controller
Driving Motor

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2. Electronic Parts

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2.1 Upper Controllers
DISPLAY
Cooling FAN
Speaker

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2.2. Lower Controller and Driver
Driver System(Motor/Controller/Incline Motor)
DC MOTOR
Motor Controller
INCLINE MOTOR

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3. Electrical Configurations

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S AFETY KEY :
To fits on the Console that activate all functions. If no safety key, console can not be controlled.
C ONSOLE :
Interface that controls all functions of the treadmill.
M AIN CONTROLLER :
The circuit board consist of the DC power supply for console、incline driver and DC motor driver, link the console to output appropriate voltages for
motor that control the treadmill functions.
T READMILL MOTOR :
This is a variable speed for DC motor. To control the 0 – 90 (or 0-180 for 220V model)voltages on the main controller, it can to increase or
decrease speed of running belt.
I NCLINE MOTOR :
This is an ac motor. User can to control variable elevation by console within main controller.
G ENERAL I NFORMATION
C ONSOLE
Contains buttons control and LCD Display.
Main controller Include power supply 、motor driver control circuit and incline control circuit.

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T READMILL MOTOR
It’s a variable speed on 0-90 volt DC motor.(for 120V model) or 0-180 volt DC motor (for 220V model)
Have three wires red, black and green.
If there is DC voltage on the Red (white) wire (M+) the treadmill motor will turn clockwise.
If there is DC voltage on the Black wire (M-) the treadmill motor will turn counter-clockwise.
The higher the voltage the faster the motor turns
The green wire is ground.
I NCLINE MOTOR
This is a 110 volt AC motor for 110V model (220 volt AC motor for 220V model)
Have four wires, red, black, white and green.
Has one 3 pins cable of position sensor.
If there is AC voltage on the Red wire (UP) the incline motor will increase the incline.
If there is AC voltage on the Black wire (DOWN) the incline motor will decrease the incline.
The White wire (COM) is neutral.
The green wire is ground.

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4. Product Operation

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Display Windows
10 X 24 DOT MATRIX DISPLAY

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Operation
Window Display Mode
OFF Mode
When user doesn’t insert the SAFETY KEY on the console, the treadmill enters the OFF Mode and all windows will appear blank.
READY Mode
When the treadmill is ON and SAFETY KEY is inserted in console, the message window will show program profile name and cycle. Press START
button to start treadmill on Manual Mode.
SLEEP Mode
In SLEEP Mode, if anyone
button is pressed then the treadmill enters READY Mode.
RUN Mode
In RUN Mode, pressing the “STOP” button and removing the SAFETY KEY will cause the treadmill stop instantly and enter OFF Mode.
Function
SPEED
Display the current speed in Kilometer mile per hour.
DISPLAY range is 0.0 to 99.9
WORK range is 1.0~18.0 kmph
Press “FAST” or ”SLOW” to adjust speed, each increment and decrement is 0.1 km/h(mph).
Incline
Display the incline position from 0 to 15
DISPLAY range is 0 to 99.
WORK range is 0 to 15.
INCLINE preset value is 0 to 15.
Press “UP” or ”DOWN” to adjust incline, each increment and decrement is 1.
TIME
TIME is either COUNT UP or COUNT DOWN. System preset is COUNT UP; if user sets the time then timer is COUNT DOWN.
DISPLAY range is 0:00 to 99:99.
WORK range is 0:00 to 99:59.
COUNT DOWN setup range is 10:00 to 99:00.
When TIME is set, the count will go to zero.
In RUN Mode, press “STOP” button to save value of time and enter “RUN Mode” again that value will continue count up time.

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LAPS
Display the total working laps quantity.
DISPLAY range is 0 to 99.
WORK range is 0 to 99.
Displays total laps quantity.
DISTANCE
Display the current distance in kilometer or Mile.
DISPLAY range is 0.00 to 99.9.
WORK range is 0.00 to 99.9.
CALORIES
Displays the cumulative calories burned at any given time during your workout.
DISPLAY range is 0.0 to 999.
WORK range is 0.0 to 999.
PULSE
Displays the heart rate beat by using hand pulse or receiver. When use receiver, a chest belt must be worn.
DISPLAY range is 0 to 999.
WORK range is 50 to 200 BPM.
In RUN Mode, if the treadmill doesn’t have a signal for 8 seconds then display value will become “0 ”.

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Function Button Locations
SPEED quick keys
Incline quick keys
Fan Key
Cooling fan switch on or off
Function Key
Control operation
Safety Key
Emergency function
PROGRAM keys

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Function Button In Main Mode
READY MODE
SAFETY KEY: Fit safety key in right position to power on the computer.
When safety key is pulled away from its position, the computer will be automatically shut down.
STOP button: Non-function.
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.
ENTER button: Before running a program, press this button that can to setting personal profile (ex. Age …)and 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.
FAST button: If user doesn’t enter a setting then this button is non-functional.
SLOW button: If user doesn’t enter a setting then this button is non- functional.
UP button: If user doesn’t enter a setting then this button is non- functional.
DOWN button: If user doesn’t enter a setting then this button is non- functional.
SPEED RAPID button: To press SPEED, then select 2 digits and treadmill will automatically adjust to that value.
INCLINE RAPID button: To press INCLINE, then select 2 digits and treadmill will automatically adjust to that value.
FAN button: It can to control ON/OFF for the fan.

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RUN MODE
SAFETY KEY: When safety key is pulled away from its position, the computer will be automatically shut down.
STOP button: press “STOP” button to stop treadmill.
START button: non-functional.
FAST button: Press the button to increase your speed and each increase is 0.1kph(0.1mph).
If button is pressed continuously then speed increases to MAX SPEED quickly.
SLOW button: Press the button to decrease your speed and each decrease is 0.1kph(0.1mph).
If button is pressed continuously then speed decreases to MIN SPEED quickly.
UP button: Press the button to raise position and each increase is 1, the maximum incline position is 15.
DOWN button: Press the button to lower position and each decrease is 1, the minimum incline position is 0.
SPEED RAPID button: To press SPEED, then select 2 digits and treadmill will automatically adjust to that value.
INCLINE RAPID button: To press INCLINE, then select 2 digits and treadmill will automatically adjust to that value.
Fan button: It can to control ON/OFF on the fan.
ENTER button: Press ENTER key to switch the exercise data shown on the message window when you are workout. During SCAN MODE, the
data will to display automatically every four seconds.

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5. Unit Block Diagrams