True Fitness No Speed Reading 600EA, Console Assembly RPM Sensor Defective ECB Control Board

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Symptom

Probable Cause

Corrective Action

Recommended Tools

NO SPEED READING 600EA

Console Assembly

RPM Sensor

Defective ECB Control Board

Remove monitor bolts. Move the swing arms until the magnet is in front of the sensor.

Set meter for DC volts. Check voltage between pin 3 and pin 1 at console assembly with cable connected.

Move swing arms. When magnet is over the pickup the voltage should be 0 VDC. When the magnet is not over the pickup, the voltage should be 5 VDC.

Does the voltage alternate between 0 VDC and 5 VDC? If yes – replace console assembly.

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Turn power off, remove rear cover

Disconnect the sensor connector. Set meter for resistance.

Check resistance at the 2 pins of the connector. Slowly move the swing arms to rotate the wheel.

Does the meter show continuity when the magnet is over the pickup? If no – replace the sensor.

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Perform a continuity and contact check on the console wire.

Replace defective wire.

Multi-meter

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Fax: 636-272-7148

 

 

 

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Contents True Fitness Service Manual Elliptical Trainers Revision 9/2004Recommended Tool List Start To Enter Diagnostic Mode Console / Display Output RPMSymptom Guide No Resistance Heavy Resistance Page Dirty Sensors Console Set Wiring Wire Connections No Contact Heart Rate 750E, 750EAControl Panel No Polar Heart Rate600EA Vibration From Drive TrainKnocking Crank and ShaftRhythm PedalingSymptom Probable Cause Corrective Action Recommended Tools Resistance Malfunction Enter DA resistance test mode. Page SG-1600EA Power Issues Control Panel Power Supply Cables No DisplayConsole Assembly RPM Sensor Defective ECB Control Board No Speed Reading 600EAWiring Diagrams True TAE Wiring Diagram True TAE Wiring Diagram True TE Wiring Diagram True Armed Elliptical 600B True TAE Parts Diagram TAE 600B Wheel Assy MVG ARM True Armed Elliptical True TAE Parts Diagram TAE CABLE-REMOTE Switchlh Console END True Elliptical True TE Parts Diagram TE 750 Prior to Serial # Side COVER-LEFT Front True TE TE 750 After Serial # 00-EL2253L MOUNT-CONTROL Board Page True Fitness Removal Replacement Removal and Replacement Step Remove Belt Wheel Lift belt wheel assembly from bearing Fixtures Remove Brake Step Remove brackets to free belt Remove Brake Brackets & Belt Remove Belt & Tensioner Assembly Remove Small Poly-V Pulley Step Remove Crank & .235 Diameter Poly-V Pulley Step Remove Hub Assemblies