Leviton 24/48, User Manual

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User Guide Appendix C Maintenance
Rev. 1.30.03.07.r1 Page 235
2 . Unplug the console from the AC power source!
WARNING
! The console contains high voltage (120 or 240 VA
C) which can cause injury or death. Be sure to unplug the
console from its AC power source before performing any
maintenance inside the console. Due to risk of electrical shock
all maintenance and repair inside console must be performed
by qualified service personnel.
3 . Turn console upside down and place it on a flat sturdy surface on foam
bricks or other suitable support.
4 . Using a Phillips screwdriver remove the screws around the bottom pan of
the console and then remove the bottom pan.
5 . Locate the CPU Printed Circuit Board Assembly on the bracket off the
rear of the console. Locate the quarter-size battery BT-1 near the rear of
the board just right of center.
6 . The easiest way to remove the battery from under its spring clip is to
first place a small flat-blade screwdriver in the notch in front of the battery,
and lift the front edge of the battery above the lip of the battery holder.
Next, place another small flat-blade screwdriver in the notch in the back of
the battery and push the battery forward out and over the front lip of the
battery holder.
7 . Make sure that the "+" side of the new battery is facing up, and then
slide the new battery into place under the spring clip.
8 . Replace the bottom pan and re-attach with the screws.
The clock will need to be reset after the above procedure, please see
Chapter 12 System Settings
.