SCIFIT SX500 Replacement Manual

Upper PCB (Display) Replacement

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.
2. Disconnect all cables running to the upper PCB (P1558) 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
upper PCB. Touching components could cause static damage. If the
wireless heart rate PCB is still plugged into the upper PCB, unplug it.
4. Remove the six (6) standoffs from the upper PCB. This may require the
use of a 5/16" nut driver or socket. The upper PCB will separate from the
overlay.
5. Install the new upper PCB and replace standoffs. If your unit had two (2)
plastic standoffs, these need to be placed back at the bottom of the new
upper PCB.
6. Plug the wireless heart rate PCB back into the upper PCB. It plugs into
the centermost, 3-pin Molex header.
(Use this procedure for all SX500's,