True Fitness 750EA, 600EA Resistance Malfunction, Enter DA resistance test mode. Page SG-1

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Symptom

Probable Cause

Corrective Action

Recommended Tools

RESISTANCE

MALFUNCTION

600EA

Console Set

Lower Board / Brake

Cable

Brake Coil

Console Cable

Remove console bolts to access 7-pin connector. Do not disconnect console set. Set meter for DC Volts. Measure between pin 1(red) and pin 5(blue) at 7- pin connector.

Enter DA (resistance) test mode. Page SG-1.

Press + key to force .9 VDC out of panel.

Press + to check voltage at all levels. Is voltage displayed on meter approximately the same as voltage displayed in heart rate window? No- replace console set. Yes, continue on.

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Remove main body cover & locate the cable connecting the brake and the lower control board. Set meter to DC volts.

Check DC voltage between pins 2 and 4 of the power supply

Is voltage is same as shown in heart rate window?

If NO – go to console cable.

Check voltage at the 2-pin connector at the brake. Press + to increase resistance and voltage.

Does the voltage start at 3.7 and increase to 30 VDC? If no- check continuity of cable. If cable is broken replace it, if cable is good – replace the lower board.

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Set meter to resistance and check the coil. Coil resistance should be 15 ohms, + or – 2 Ohms. If not then replace the coil.

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Set meter to resistance; perform continuity check on wire harness.

Check for cross continuity.

Broken wires? Replace cable.

Note:

You must pedal at least 30 RPM when performing any voltage test. You may require the assistance of another person when performing voltage checks.

Multi-meter

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Support Services 800-883-8783

Mon-Fri 8:30am-5:00pm Central Time Zone

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, 750EA600EA No Polar Heart RateControl Panel Vibration From Drive TrainRhythm KnockingCrank and Shaft 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