User's Manual

METTLER TOLEDO WILDCAT Scale Technical Manual
(12/00) 4-4
4. Reinstall the rear cover over the batteries and press into place.
5. Test for proper operation.
The operating time for a new set batteries depends on how the scale is used. Estimates
(without backlight) are shown below. Using the backlight feature reduces battery life.
Operation Battery Life
Continuous use 400 hrs (Approximately 17 days)
8 hours per day 500 hrs (Approximately 3 months)
Keyboard Replacement
1. Remove power by removing the six “D” size batteries from the rear battery
compartment and/or disconnecting the AC power adapter.
2. Remove the four screws securing the front and back halves of the cover.
3. Disconnect the keyboard tail from the Controller PCB. Discard the old front cover.
4. Connect the keyboard tail of the new front cover to J5 of the Controller PCB.
5. Secure the front cover to the back cover with the four screws.
6. Apply power then press and hold the ON/OFF (PRINT) key for 3 seconds.
7. Test the operation of the new keyboard.
Controller PCB Replacement
To replace the PCB, follow the procedures below.
1. Remove power by removing the six “D” size batteries from the rear battery
compartment and/or disconnecting the AC power adapter.
2. Remove the four screws securing the front and back halves of the cover.
3. Disconnect the keyboard tail from the Controller PCB and set the front cover aside.
4. Disconnect the battery harness from the Controller PCB.
5. Disconnect the load cell cable from the J4 terminal strip on the Controller PCB.
6. Remove the two hex standoffs from the side of the enclosure that secures the serial
output connector to the back cover of the WILDCAT.
7. Remove the four screws that secure the Controller PCB to the back cover.
8. Using proper static electricity precautions, carefully remove the Controller PCB and
place it in a protective static bag.
9. Install the new Controller PCB using the same screws removed in the previous step.
10. Install the two hex standoffs to the side of the enclosure that secure the serial output
connector to the back cover of the scale. Reconnect the load cell cable.
11. Reconnect the AC adapter and battery harnesses removed previously.
12. Connect the keyboard tail of the front cover to J5 of the Controller PCB.
13. Secure the front cover to the back cover with the four screws.
14. Apply power to the scale then press and hold the ON/OFF key for 3 seconds.
15. Reprogram, recalibrate and test the operation of the new Controller PCB.