Disassembly Instructions
Repair Information
4 - 14
0070-10-0591-01
Trio™ Service Manual
4.5
Disassembly Instructions
Before disassembling the unit, perform the following:
• Power down the unit and remove the line cord
• Remove all cable assemblies from the right side and rear of the unit
• Remove any batteries that were installed
• Perform all work on a properly grounded station
CAUTION:
To ensure continued use of the Factory Defaults when the
unit is powered off and on, save the Factory Defaults as the
User Default Configuration after reassembly.
4.5.1
Tools Needed
• Phillips Screwdriver
• Slotted Screwdriver
• Awl or similar tool
4.5.2
Removal of the Front Housing
1.
Remove two (2) 3 x 40 mm Phillips panhead screws at top right and left of rear housing.
2.
Remove two (2) 3 x 5 mm Phillips flathead screws at front right and left of bottom
housing.
3.
Carefully pull Front Housing Assembly forward and remove from rear housing.
4.
Disconnect cable assemblies from connectors P3 (speaker cable assembly) and P4 (CPU
PCB to Keypad PCB cable assembly) of Keypad PCB.
4.5.3
Removal of Display
1.
With Front Housing Assembly removed, place monitor face up on a flat surface.
2.
Remove four (4) 2.5 x 6 mm Phillips panhead self tapping screws at corners of the 8.4"
TFT display.
3.
Carefully lift display from mounting bracket.
4.
Disconnect cable assembly from CN2 on the HV inverter PCB, and ribbon cable at
upper left of display.
4.5.4
Removal of Thermal Printhead Recorder
1.
Open recorder door and remove paper roll, if installed.
2.
Remove two (2) 3 x 6 mm Phillips panhead screws from rear of recorder paper
compartment.
3.
Insert flat blade of screwdriver into tab slots at center right and center left of recorder
paper compartment.
4.
Gently move tabs in toward center of paper compartment while pushing recorder out
from rear housing of unit.
