True Fitness 750R, 500U, 600R, 750U, 500R, 600U manual

Symptom Probable Cause Corrective Action Recommended Tools

No Display 750U, 750R

Console Set

Brake

Defective Cable

Console Cable/

Lower Control

Board

•Remove console set bolts. Verify good connection at the back of the console set. Set meter for DC volts

•Pedal.

•Measure between #1 and #4 wires (Page 21) for 5.5 – 7.5 VDC.

•Is required voltage present?

•If yes- replace console set. If not, continue on.

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•Remove pedal and if 3 piece crank remove crank arm.

•Remove right side cover.

•Disconnect 3- wire connector at brake.

•Set meter for AC volts.

•Pedal.

•The voltage should increase as pedaling increases.

•Is minimum voltage 9 VAC @ 30 RPM?

•If No- replace Brake. If yes, continue on.

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•Remove pedal and if 3 piece crank remove crank arm.

•Remove right side cover.

•Disconnect 3- wire cable from brake and lower control board.

•Set meter for continuity.

•Check all 3 wires in cable for continuity.

•No continuity? Replace cable

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•Set meter for DC volts. Reconnect cable to brake and lower control board.

•Pedal.

•Measure for 5.5 – 7.5 VDC between #1 and #4 wires on 7- pin cable for the console at the lower control board.

•Voltage is present? Replace cable for console.

•Voltage not present? Replace lower control board.

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

Page 14

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