PRO1 Upper PCB Replacement
serial number 610-005000 thru 610-005074.)
1. Using a Philips screwdriver, remove the four (4) display screws on the
back of the display mounting plate.
2. Disconnect all cables connected to the display 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 (A1537) using a Philips screwdriver. This will free the display
PCB and overlay from the plastic console. Do not touch any
components on the PCB. Touching components could cause static
damage. If the heart rate receiver is still plugged into the display PCB,
unplug it now.
4. Remove the six (6) standoffs (P1051) from the display PCB. This may
require the use of a 5/16" nut driver or socket. The display PCB will
separate from the overlay.
5. Install the new display PCB and replace standoffs. If your unit had two
plastic standoffs, these need to be placed back at the bottom of the new
display PCB.
6. Plug the heart rate receiver back into the display PCB. It plugs into the
centermost, 3-pin Molex header.
(Use this procedure for PRO1's with
1
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