Spectrum
®
/Spectrum OR
™
Service Manual 0070-10-0556-02 1 - 3
Repair Information Disassembly Instructions
1.6 Disassembly Instructions
Before disassembling the unit, perform the following:
• Power down the unit and remove the line cord
• Remove all cable assemblies from the left side, right side and rear of the unit
• Remove any batteries that were installed
• Perform all work on a properly grounded ESD workstation
Removal of the Front Housing
1. Place the unit face down on a protective surface.
2. Loosen the screw from the Comm-Port or filler Port. Remove the Comm-Port or filler port
from the rear of the unit. Remove the eight screws from the rear of the unit.
3. Turn the unit over and carefully remove the front housing assembly.
4. Disconnect the 80 pin ribbon cable from the J1 of the Display / Keypad board mount in
the front housing.
Removal of the TFT Panel
1. Remove Display driver Cable assembly from J5.
2. Remove the Inverter cable assembly from J8 and the display itself.
3. Remove the encoder cable assembly from J4.
4. Remove the Speaker cable assembly from J2.
5. Remove the five screws that secure the Panel board to the front housing and place to the
side. Lift the board up and out.
6. Remove the Keypad cable assembly from J10.
7. Remove the two screws that secure the Speaker holder assembly. Remove speaker
assembly.
8. Remove the two screws that secure the High voltage inverter board to the left rail
assembly.
9. Remove the high voltage cable assembly from J2 of the inverter board. Place board
assembly to the side.
10. Turn the front assembly over and remove the encoder knob from the front.
11. Remove the nut and washer that secures the encoder to the front housing. Push the
encoder out the back of the housing and place to the side.
12. Turn the front housing back over.
13. Remove the two standoffs below the display and place to the side.
14. Remove the four screws that secure the Display assembly to the front housing brackets.
15. Slide the Display to the bottom of the front housing and lift the right side past the bracket
to remove the display.
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