Star Trac E-TRe User manual

Troubleshooting
STAR TRAC FITNESS 1 637-1383 Rev: A
Treadmill Embedded Touch Screen Won’t Power Up
E-TRe and E-TRxe
This document contains the necessary information to troubleshoot a treadmill with an
embedded touch screen that will not power up.
Follow the flowchart on the next page.
All documents referenced in the flow chart are also included.

Verify that the
treadmill plugged
into the wall and
the power switch is
set to the ‘on’
position?
Unit plugged in and
power switch on?
Disconnect the power cord from the
underside of the treadmill and
reconnect it. Also verify that the cord is
secured with the tie strap.
(See 637-1308)
Yes
Verify that there
is power coming
from the wall.
Either 110 VAC
or 220 VAC
Plug the treadmill
into the wall outlet
and turn the power
switch to the ‘on’
position and test.
No Does the
screen turn on?
No
Treadmill is
operational.
Yes
Is there
sufficient
voltage from
the wall?
Yes
Check the wall
breaker. Make
sure the breaker
has not tripped
off..
No Was the
breaker tripped
off?
Turn the breaker
on so power is
coming from the
outlet and test the
treadmill.
Yes
Does the
screen turn on? Treadmill is operational.
Yes
No
Does the
screen turn on?
Yes
Remove the motor
shroud. Check the
MCB to see if any
lights are on.
No
Are the MCB
lights on? No
The outlet is at fault. Plug the
treadmill into another outlet.
No
MCB Will Not
Power Up
(637-1378)
Yes
The MCB may not be
getting power or is faulty.
Follow the procedures in
“MCB Will Not Power Up”
Verify that the
breaker on the
treadmill has not
been tripped.
Was the
breaker
tripped?
No
Push the
breaker in to
reset and test
the unit.
Does the
screen turn on? Yes
Treadmill is
operational. Yes
No
Pg. 2
Ver. 1 Ver 1
Determine the
version of the MCB
inside the treadmill.
(See 637-1338)
Version 1 or
Version 2
Pg. 2
Ver. 2
Ver 2

Ver. 2
The screen may need
to be manually reset.
Follow procedures in
“Manual Computer
Reset”
Manual
Computer
Reset
(637-1382)
Does the
screen turn on?
The treadmill is
operational.
Replace the embedded
screen and return failed
display to Star Trac.
Yes
No
Without an external power
supply, multiple checks will need
to be made. Follow procedures in
“Checking the Power Supply and
Power Cables”
No
Verify that the LED
on the power
supply board is on. Is the LED on? Checking the
Power Supply
(637-1379)
No
The power supply may
not be getting power or
is faulty. Follow
procedure in “Checking
the Power Supply”
The next trouble shooting
step will require an
external power supply.
Test the
Embedded Screen
with an External
Power Supply
(637-1380)
Yes
Ver. 1
Is external
supply available? Yes
Checking the
Power Supply
and Power
Cables
(637-1381)
No
Does the
screen turn on?
Yes
Does the
screen turn on?
The treadmill is
operational. Yes
The screen is good. Multiple
checks will need to be made to
determine the root cause. Follow
procedures in “Checking the
Power Supply and Power Cables”
Checking the
Power Supply
and Power
Cables
(637-1381)
The treadmill is
operational.

Customer Services Bulletin
STAR TRAC FITNESS 1 of 1 637-1308 Rev: A
Treadmill Power Cord Tie Wrap
E Series & S Series Treadmills
Star Trac recommends securing the power cord on the E Series and S Series treadmills with a tie wrap (zip tie). This will
prevent intermittent power issues caused when the power cord become loose in the connector.
Step 1 Make sure the power cord connector it securely plugged in to the treadmill (Fig. 1). Raise the treadmill incline to
15% (or high enough to give you room to work underneath). Once elevated, turn the power switch Off, so the unit
does not automatically come back down while you are working underneath.
Step 2 You may need to open the motor shroud. You will need to loop a tie wrap (zip tie) up and back down through two
holes to hold the power cord connector into place (Fig. 2).
Fig. 1 Fig. 2
Step 3 Make sure the power cord is routed out the front of the treadmill (Fig. 3) and will be out of the way of the unit’s
normal operation. Make sure the power cord has enough slack so that the treadmill can incline and decline
without tension on the power cord. Cut the excess tie wrap (Fig. 4)
Fig. 3
Fig. 4
Test unit for proper function.

General Information
STAR TRAC FITNESS 1 of 8
637-1338 Rev: B
MCB Changes
All AC Motor System Treadmills:
Starting August 2010 there will be a change of the MCB.
•New P/N 715-3881 for 110 volt systems
•New P/N 715-3880 for 220 volt systems
Some components on the old system have been designed into the new MCB and are no longer needed.
This document explains the changes that have been made and the difference between the old and new system.
Components Not Needed with New MCB
T he following diagrams (Fig. 1 and 2) show the old system and have the parts highlighted that won’t be part of the new
system. Figure 3 shows the wiring diagram of the old system.
•Resistors and Brackets (Items No. 21, P/N: 715-3588 and Item No. 15, P/N: 170-0688)
•Power Supply (Item No. 25, P/N: 715-3784)
•Fan Cable (Item No. 24, P/N 715-3674)
Fig. 1

General Information
STAR TRAC FITNESS 2 of 8
637-1338 Rev: B
Fig. 2

General Information
STAR TRAC FITNESS 3 of 8
637-1338 Rev: B
Fig.3

General Information
STAR TRAC FITNESS 4 of 8
637-1338 Rev: B
New AC System:
The new MCB’s are backwards compatible with all AC Motor System Treadmill:
•P-Series 7600/7700 (still requires the FCB “Fan Control Board” and the cable that goes from the FCB to the MCB)
•E-Series Treadmills
•S-TRc Treadmill
If you use the new MCB to replace the old version you may leave the unnecessary components unplugged (resistors and
power supply) on the motor pan.
Serial Number Cut In for 110V units:
E-TR/E-TRe
•TREN1008-U21673 and up
E-TRx/E-TRxe
•TREX1008-U21673 and up
S-TRc serial number cut in:
•Not available as of today
Serial Number Cut In for 220V units:
E-TR/E-TRe
•TREN1008-U21250 to TREN1008-U21254
•TREN1008-U21276 and up
E-TRx/E-TRxe
•TREX1008-U21276 and up
S-TRc serial number cut in:
•Not available as of today

General Information
STAR TRAC FITNESS 5 of 8
637-1338 Rev: B
Figure 4 and 5 below show a drawing of the new system followed by Figure 6 which shows the wiring diagram of the new
system (110V/220V).
Fig. 4

General Information
STAR TRAC FITNESS 6 of 8
637-1338 Rev: B
Fig. 5

General Information
STAR TRAC FITNESS 7 of 8
637-1338 Rev: B
Fig. 6

General Information
STAR TRAC FITNESS 8 of 8
637-1338 Rev: B
You may encounter some MCB’s where the connector that delivers power to the PVS or embedded head (see actual
location of this connector in Fig. 7 below) has 6 pins but the connector that plugs in is only a 4 pin connector. In this case
plug the connector into the middle and keep one pin on the left and one pin on the right free (Fig. 8). Carefully cut the two
outer pins to prevent future confusion.
Always turn the unit off and unplug it from the wall power outlet before working on any electronic component.
Fig. 7
Fig. 8

Troubleshooting
STAR TRAC FITNESS 1 of 4 637-1378 Rev: A
MCB Will Not Power Up
AC MCB’s
The following document outlines the troubleshooting steps to determine why an MCB is not powering up (or there are no
diagnostic LED turned on). The main symptom is that the display or embedded touch screen will not turn on.
The procedures in this troubleshooting document require the power to be on and the drive motor shroud to be
removed. Take extreme caution when working around live electronic components. If you are not comfortable
working around electricity, do no perform this procedure.
Some assumptions have been made as well:
•The power cord is securely plugged into a wall outlet.
•The outlet is supplying the appropriate amount of AC voltage.
•The other end of the power cord is secured in the unit.
•The power switch is set ‘on’ and/or the breaker on the treadmill has not been tripped.
Do not continue with the rest of the document until these have been confirmed.
The following tools will be needed:
•Phillips screwdriver
•Multi-meter
Verify Power Coming from EMI Filter
1. Turn the power switch to the off position.
2. Locate the EMI Filter (Fig. 1) and disconnect the two wires that go to the MCB (Fig. 2).
Fig. 1
Fig. 2

Troubleshooting
STAR TRAC FITNESS 2 of 4 637-1378 Rev: A
Warning: The following procedures require the power to be on. Take
extreme caution when working around live electrical components.
3. Turn the power switch on.
4. Set the multi-meter to read AC power and check the voltage coming out of the EMI Filter (Fig. 3). The readings
should be between:
•110 Volt Treadmills – 110 VAC – 120 VAC
•220 Volt Treadmills – 208 VAC – 240 VAC
Fig. 3
•If there is no power coming from the EMI filter, turn the power
switch to off. Reconnect the wires then go to step 5.
•If there is power, turn the power switch off, reconnect the wire
and go to the section:
Verifying Power Going to the MCB.
5. Disconnect the cables (brown and blue) from the input side of the EMI filter (Fig. 4).

Troubleshooting
STAR TRAC FITNESS 3 of 4 637-1378 Rev: A
Warning: The following procedures require the power to be on. Take
extreme caution when working around live electrical components.
6. Insert the multi-meter leads into the cables (Fig. 5) then turn the power on. The voltage reading should be like
those noted in step 4.
Fig. 4
Fig. 5
a. If there is voltage, replace the EMI filter. Then test the treadmill to see if the MCB will power up.
b. If there is no voltage, replace the on/off switch and/or the onboard circuit breaker. Then test the
treadmill to see if the MCB will power up.
If the MCB will not power up after replacing components, continue on to section: Verifying Power Going to the MCB.
Warning: The following procedures require the power to be on. Take
extreme caution when working around live electrical components.
Verify Power Going to the MCB
1. With the power on, check the voltage on P6 on the MCB (Fig. 6). This is the main power to the MCB from the EMI
filter.
The readings should be between:
•110 Volt Treadmills – 110 VAC – 120 VAC
•220 Volt Treadmills – 208 VAC – 240 VAC

Troubleshooting
STAR TRAC FITNESS 4 of 4 637-1378 Rev: A
Fig. 6
•If there is no power, replace the power cable then test the unit.
•If the MCB LED’s still are not on, continue on to section: Check the Fuse on the MCB.
Check the Fuse on the MCB
1. Turn the treadmill off.
2. Remove fuse F1 from the MCB (Fig. 7) and with the multi-meter, check the fuse (Fig. 8). There should be
continuity across the fuse.
Fig. 7
Fig. 8
If the fuse has no continuity or is visibly burnt, replace the fuse. It is a 250v .4 amp (400 milliamps) slow blow
fuse. Once replaced test to see if the MCB powers up.
•If the MCB does not power up after replacing the fuse, replace the MCB.
•If the fuse is good and the MCB won’t power up, replace the MCB.

Troubleshooting
STAR TRAC FITNESS 1 of 3 637-1379 Rev: A
Checking the Power Supply
E-TR, E-TRx, E-TRe, & E-TRxe
Version 1 MCB
The Version 1 MCB of the E Series treadmills have an external power supply that is used to send 12 volts of DC power to
the following components :
•Fans for the LED display
•PVS System
•Embedded Touch Screen
Tools Needed:
•Phillips screwdriver
•Multi-meter
Warning: The following procedures require the power to be on. Take
extreme caution when working around live electrical components.
If any of these components are not powering up follow the steps below to verify is the power supply is working.
1. Turn the unit power on.
2. Lift the motor shroud and visually check the power supply to ensure that there is an LED (Fig. 1) lit. This LED will
be lit when there is voltage being supplied to board and the board is in working order.
Fig. 1

Troubleshooting
STAR TRAC FITNESS 2 of 3 637-1379 Rev: A
If the LED is not lit, disconnect the four pin cable from the power supply (Fig. 2) to see if the light comes back on.
Fig. 2
•If the light comes on, then there is a short somewhere in the system above. The power supply is
functioning properly.
•If the light does not come on, go to step 3.
3. Set the multi-meter to read AC voltage. Insert the leads into connector of the brown and blue wires (Fig. 3). Be
sure the leads are in contact with the pins inside the connector housing. There should be 120 VAC (or 220 VAC)
coming into the board.
Fig. 3
•If there is 120 VAC (or 220 VAC), but the power supply LED is not lit, replace the power supply.
•If there is not sufficient power, continue to step 4.

Troubleshooting
STAR TRAC FITNESS 3 of 3 637-1379 Rev: A
Warning: The following procedures require the power to be on. Take
extreme caution when working around live electrical components.
4. Disconnect the power supply cable (P1) from the MCB (Fig. 4). Set the multi-meter to read AC voltage. Put one
lead on pin 1 and the other on pin 3 (Fig. 5). There should be 120 VAC (or 220 VAC).
Fig. 4
Fig. 5
•If there is no voltage coming from the MCB, yet the MCB diagnostic LED’s are lit,replace the MCB.
•If there is voltage coming from the MCB, the replace the power supply cable.

Troubleshooting
STAR TRAC FITNESS 1 of 2 637-1380 Rev: A
Test An Embedded Screen with External Power Supply
E-TRe & E-TRxe
When troubleshooting an embedded touch screen that won’t power up, using an external 12 VDC power supply is the fastest
way to determine if the screen is working. The following procedure explains how to use the external power supply.
Note: This document is used as part of the “Embedded Touch Screen Won’t Power Up” flowchart.
Use an External Power Supply
Use a separate 12 volt DC power supply (Fig. 1) and an adaptor cable (Fig. 2). The power supply from an E Series bike
embedded touch screen or PVS kit would work. The adaptor cable can be obtained from Star Trac.
Fig. 1
Fig. 2