Star Trac 8 SERIES Manuale di riferimento

Service Bulletin

Page 1

637-4301 Rev. D

Rev. D

This document explains how to troubleshoot and resolve treadmill elevation

errors. Follow the steps below to assess where a potential issue may be hap-

pening.

As a user inclines the treadmill, the MCB sends VAC to power the elevation motor. The power being

sent depends on the input voltage (i.e. 110 VAC treadmills have a 110 VAC elevation motor and 220

VAC treadmills have a 220 VAC elevation motor). The MCB also sends 5 VDC to the elevation sensor

(potentiometer), mounted on the elevation motor, for positioning feedback.

Elevation related errors

• The “Elevation Stall”code is triggered by the display when the elevation motor has been commanded to move

but the display does not sense any movement.

• The “Elevation Lost” code is triggered by the display when there is no elevation motor detected.

• The “Elevation Range” code is triggered by the display when the elevation incline number is far below or above

the Elevation 0% and Elevation Max setting numbers.

• Embedded “Error 38” and “Error 41” is triggered when incline is out of range and “Error 42” is triggered when

incline is stuck.

Tools Required

• Phillips Head Screwdriver

• Multimeter

Warning: the following procedure requires the power to be on.

Please exercise caution when working around live electrical components

Treadmill Elevation Troubleshooting

Applies to: 8 Series, E-Series, and S-Series Treadmills

Service Bulletin

Page 2

637-4301 Rev. D

Incorrect Elevation Range Set In Console

1. Enter Maintenance Mode in the console and select Incline / Elevation Calibration.

New Parameters

Updated 1.05 Display software, for 8-series LCD displays and 1.6 Translator Board software, for E and

8-Series 15” Embedded displays, elevation parameters are outlined below:

8-TRx: 20% Elevation 8-TR: 15% Elevation

Min. Elevation 228 Min. Elevation 228

Max. Elevation 11 Max. Elevation 55

Old Parameters

Previous software revisions for E & S Series treadmill LED displays do not aect elevation parameters.

The old values are listed below:

E-TRx: 20% Elevation E-TR, S-TRc, S-TRx: 15% Elevation

Min. Elevation 230 Min. Elevation 230

Max. Elevation 38 Max. Elevation 70

Please note that the embedded console incline should not exceed 1024 at 0% elevation, or go below 25 at 20%.

If this is the case, verify the potentiometer Ohm range is set properly and re-run an incline calibration.

2. Exit out of the Incline / Elevation Calibration and Maintenance Mode. Test the treadmill for functionality.

Potentiometer out of Range (Error Code 38 & 41) Procedure

An Error Code 38 is an elevation range error. If the incline number, during elevation calibration, goes above 1024 at 0%

or below 25 at max incline, an error of code 38 will be displayed. When the treadmill is rebooted, it will boot right into

Error Code 38 and the Service Menu cannot be accessed.

1. Turn o the treadmill and remove the motor shroud so the

elevation motor is visible

Service Bulletin

Page 3

637-4301 Rev. D

2. Remove the screw holding the cap to the motor

3. Remove the cap to expose the elevation potentiometer (pot)

4. Unplug the elevation motor from the Motor Control Board

(MCB). Set the multi-meter to measure Ohms (Ω). Insert the

multi-meter leads; one in the orange wire, one in the blue

wire

5. Loosen the two screws holding the elevation pot.

a. If the unit is at max elevation, turn the pot count-

er-clockwise until the screws are completely to

the right side of the pot slots. Tighten the screws.

Service Bulletin

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637-4301 Rev. D

b. If the unit is stuck at 0% elevation, turn the pot

clockwise until the screw is completely to the left

side of the pot slots. Tighten the screws.

6. Check the multi-meter.

a. If the unit is at the max elevation, the value must be between 500-600 ohms.

b. If the unit is at 0%, the value must be between 9.4 – 9.5 k ohms.

7. If the pot is turned all the way to the right or left and the ohm values are not within the necessary range, go

to Step 8. If the values are within the range, go to Step 9..

8. Remove both screws holding the pot in place. Gently wiggle

the pot to pull it out. Once the pot is pulled out, gently turn

the center shaft of the pot to get the desired Ohm value.

9. Put the pot back in the motor. Be careful to not twist it. Once

the pot is in place, verify that the Ohm value is still in the

desired range. Install the two screws and tighten the pot in

place.

Service Bulletin

Page 5

637-4301 Rev. D

10. Turn the treadmill on. If the Error Code 38 does not appear,

go directly to the last step. If the Error Code 38 continues, use

the FISP Uploader to reinstall the translator board software.

(Connection shown)

Note: (E-TR & E-TRx Only) Ensure you are installing the prop-

er version of software for that model (see Service Bulletin:

637-1343). Installing the wrong version will cause the speed

calculation to be incorrect.

Once the translator board software has been uploaded,

reboot the treadmill.

11. Once the treadmill has booted up, enter the “Service Menu” to run the elevation calibration program. Once

complete, reinstall the elevation motor cap and motor shroud. The unit is now operational.

Service Bulletin

Page 6

637-4301 Rev. D

Elevation Stall Troubleshooting

1. Enter maintenance mode by pressing “0” + “2” +

“OK” at the same time.

2. Use the elevation buttons to scroll to “Elevation

Calibration” then press “OK”.

3. Use the elevation keys to raise/lower the unit. If the unit responds, power cycle the unit and see if error

reoccurs. If error happens again, or if the unit doesn’t move during this step, go on to the next step, otherwise

perform PM and make sure the elevation motor is lubricated.

4. Remove motor shroud. Verify the elevation LED’s

illuminate while raising or lowering. If lights do

not toggle, replace the Comm cable from lower

board to the display.

Service Bulletin

Page 7

637-4301 Rev. D

5. Check the fuses on the control board. If either are

damaged/blown, replace and retest.

6. Make sure the elevation screw is lubricated, and there are no obstructions preventing the frame from rising.

7. Verify the power to the elevation motor using a multimeter.

a. Place red meter probe in black wire

of pin 4 located at connector J5. Place

black meter probe to AC1 on the

MCB. At rest the voltage should read

either 110v or 220v (depending on

your model)

When pressing elevation down the

voltage should drop to 0v or 1v.

b. Place red meter probe in red wire of

pin 5 located at connector J5. Place

black meter probe to AC1 on the

MCB. At rest the voltage should read

either 110v or 220v (depending on

your model)

When pressing elevation down the

voltage should drop to 0v or 1v.

Service Bulletin

Page 8

637-4301 Rev. D

8. If voltage changes on meter, but elevation motor does not move, replace the elevation motor. If the voltage

does not change, replace the MCB.

Ribbon / Data Cable Damage

1. Power the treadmill o.

2. Ensure the ribbon / data cable is fully connected to the MCB and console. Disconnect and reconnect if neces-

sary.

3. Inspect the ribbon / data cable for any cuts, tears, or visible damage, power the machine on and test for func-

tionality.

4. Test for continuity for each pin on the cable.

5. Alternately, use a new or known-good ribbon / data cable, routed outside the machine from MCB to Console to

test for functionality.

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