No Display - True Fitness 750E Service Manual

Symptom

No Display

750E, 750EA
Page 6
Support Services 800-883-8783
Probable Cause
Console Set
Brake
Defective Cable
Console Cable/
Lower Control
Board
Corrective Action
•
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 for
5.5 – 7.5 VDC.
•
Is required voltage present?
•
If yes- replace console set. If not,
continue on.
--------
•
Remove right side bar assembly, right
mast cover and main body 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.
--------
•
Remove right side bar assembly, right
mast cover and main body 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
----------
•
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.
Mon-Fri 8:30am-5:00pm Central Time Zone
Recommended Tools
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
Fax: 636-272-7148