SCIFIT SXT7000 Parts list manual

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Wireless Heart Rate PCB Replacement (Use this procedure for all
SX500’s, SX1004’s thru serial number 905-005170, SX7000’s thru 911-
005227, and SXT7000’s thru 970-005361.)
1. Using a Philips screwdriver, remove the four (4) display mounting screws
on the back of the display mounting plate.

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2. Disconnect all cables running to the upper PCB and remove the upper
console assembly from the unit. Make sure the cables do not fall into
the neck of the unit.
3. Remove the two (2) outer countersunk screws in the back of the plastic
console using a Philips screwdriver. This will free the upper PCB and
overlay from the plastic console. Do not touch any components on the
PCB. Touching components could cause static damage. If the
wireless heart rate PCB is still plugged into the upper PCB, unplug it.
4. Using a Philips screwdriver, remove the center, countersunk screw that
mounts the heart rate bracket (A1124).
5. Cut the zip-tie holding the wireless heart rate PCB to the bracket.
6. Mount the new wireless heart rate PCB onto the bracket, using a zip-tie
(as shown in the picture at the top of the page).
7. Reinstall the wireless heart rate assembly back into the console but do not
tighten screw all the way down. When looking at the console from the
front, rotate the wireless heart rate PCB clockwise about ten (10) degrees.
When properly installed, the wireless heart rate PCB should be completely
vertical. Tighten the screw to lock in place.
8. Reinstall the upper display assembly. When looking at the console
assembly from the backside, loop the wireless heart rate cable around the
lower right standoff. Plug the wireless heart rate PCB back into the upper
PCB. It plugs into the centermost, 3-pin Molex header.
9. Reinstall the two (2) outer countersunk screws in the back of the plastic
console.
10.Reconnect all cables to the upper PCB (as shown at the top of this
procedure).
•The contact heart rate PCB has a cable coming up from the neck of
the unit. This plugs into the outermost, 3-pin Molex header next to
the wireless heart rate header.
•When looking at the back of the upper PCB, the telco cables plug in
along the left edge. The 6-pin plugs into the top jack and the 8-pin
plugs into the bottom jack.
•If your unit has Cardio Key, the cable plugs into the serial port,
which is the 4-pin Molex header lower right corner.
•If your unit has Broadcast Vision, Cardio Theater, etc., the cable
connects to the 8-pin header located at the bottom center of the
upper PCB.
11.Place the display assembly back onto the mounting plate and install the
four (4) display mounting screws.