Dyaco AT90E, NT52 Service Manual

AT90E

NT52

Treadmill

Service Manual

(110~120V & 220~230V)

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--------------------------------------Table of Contents-------------------------------------------

1. Treadmill Outlines

2. Electronic Parts

2.1 Upper Controllers

3. Electrical Configuration

4. Product 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 Driver Board Wire Connections

6.4 Driver Board PCB Component Locations

6.5 Driver Board LED Indicator Locations

6.6 Controller Indicator LED Debugging

6.7 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

8.2 Cause of E1

8.3

Circuit diagram

8.4 CALIBRATION PROCEDURE

8.5 Fuse replacement

8.6 Troubles hooting procedure matrix

9. Folding/Unfolding and Transport

10. General Maintenance

10.1Tread Belt and Deck

10.2 Service Troubleshooting Checklist – Diagnosis Guide

11. Installation of the Incline Motor

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12. Disassembling and Assembling of Parts

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

Speed adjustment

button+ Hand P

ulse

Sensor

Incline adjustment
button+ Hand P

ulse

Sensor

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Lower

Controller

Driving Motor

Incline Motor

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2. Electronic Parts

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2.1 Upper Controllers

LCD

DISPLAY

Hand Pulse

Heart Sensors

Hand Pulse

Heart Sensors

Cooling Fan

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2.2. Lower Controller and Driver

Driver System(Motor/Controller)

SPEED SENSOR

DC MOTOR

Motor Controller

INCLINE MOTOR

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3. Electrical Configurations

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S

AFETY KEY

:

T

O 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(120VAC) or 0 –180(230VAC) voltages on the main controller, it can to increase or

decrease speed of running belt.

G

ENERAL INFORMATION

C

ONSOLE

Contains Key controls and LCD Display.

Main controller Include power supply 、 motor driver control circuit and incline control circuit.

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Treadmill motor

It’s a variable speed on 0-90 volt DC motor.for 120V

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.

INCLINE MOTOR

This is a 120 volt AC motor.

Requires four wire connection: red, black, white and green.

Has one 3 pins cable for 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/yellow wire is grounding wire.

N

OTICE BEFORE OPERATION

:

The treadmill will increase or decrease speed slowly. It means that it will take you a little time to reach the speed you adjusted. When you work on

the treadmill, you must check the emergency switches both on left and right side are turned on, and turn around the switch to check it is off. Also,

check the safety key is put on properly, and the clip is on your cloth. Any of the devices above mentioned is incorrect, and then the machine couldn’t

work.

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4. Product Operation

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Display Windows

LCD Display

Hand Pulse

Heart Sensors

Hand Pulse

Heart Sensors

FAST/SLOW

Key

UP/DOWN

Key

Safety key

INCLINE Quick Keys

SPEED Quick Keys

ENTER Key PROGRAM Key

STOP key

START key

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LCD Layout

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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 windows will appear E0 .

READY Mode

When the treadmill is ON and SAFETY KEY is inserted in console the treadmill enters the READY Mode. Press START button to start treadmill on
Manual 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 mph(km/h)
WORK range is 0.5 to 10.0 mph
Press “FAST” or ”SLOW” to adjust speed, each increment and decrement is 0.1 mph(kph)

TIME

TIME is either COUNT UP or COUNT DOWN.
DISPLAY range is 0:00 to 99:99.
WORK range is 0:00 to 99:59.
In RUN Mode, press “STOP” button to save value of time and enter “RUN Mode” again that value will continue count up time.

DISTANCE

Display the current distance in kilometer or Mile.
DISPLAY range is 00.0 to 99.9.
WORK range is 00.0 to 999.

CALORIES

Displays the cumulative calories burned at any given time during your workout.
DISPLAY range is 00.0 to 99.9.
WORK range is 00.0 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.

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Function Button Locations

Speed quick keys

3/6/9

FAST/Slow Key

Adjustment Speed

Enter Key

Set data function

STOP Key

end workout

Safety Key

Emergency function

Incline quick keys

3/6/9

PROGRAM Key

Choose Program

Up/Down Key

Adjustment incline

START Key

To workout

FAN key

Switch FAN

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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.

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.

STOP button:

Pressing “ STOP ” button to stop treadmill, When pressing “STOP” button, Slowly lower the speed to run with stops.

ENTER button: Press “ENTER” button to change each function. MANUAL can set using time, Pre-set PROGRAM can set using time and speed.

PROGRAM button: Select a program

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: 3 preset buttons for rapid speed: 3,6,9 mph(kph)

INCLINE RAPID button: 3 preset buttons for rapid incline: 3,6,9

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.

ENTER button: non-functional.

PROGRAM button: non-functional.

FAST button: Press the button to increase your speed and each increase is 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 0.1mph. If button is pressed continuously then speed decreases to

MIN SPEED quickly.

UP button: Press the button to increase your incline and each increase is 1. If button is pressed continuously then INCLINE increases to MAX

INCLINE quickly.

DOWN button: Press the button to increase your speed and each increase is 1. If button is pressed continuously then INCLINE increases to MAX

INCLINE quickly.

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SPEED RAPID button: Speed will set to : 3,6,9 mph(kph)

INCLINE RAPID button: Incline will set to : 3,6,9

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5. Unit Block Diagrams

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Treadmill Configuration

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6. Basic Connections and Wiring

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6.1 Display Board wire Connections

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6.2 Display Board PCB Component Locations

PCB Board Top