Installing The Trend Download Board - GE TruSat Technical Reference Manual

Installing the Trend Download board

WARNING: Power OFF and disconnect the monitor from external power
before performing any procedure that involves disassembly of the monitor.
WARNING: Internal electronic components are susceptible to damage by
electrostatic discharge. To avoid damage when disassembling the monitor,
observe the standard precautions and procedures for handling static-
sensitive components.
Tool: Phillips screwdriver, #1
1. Power OFF and disconnect the power cord and other cables from the monitor.
2. On the right (ComWheel) side of the monitor, loosen the 3 screws until you can lift
the bumper assembly away from the housing.
3. Note the orientation of the ComWheel encoder cable and the speaker cable. Each is
"keyed" for correct connection to the System board. Carefully disconnect both
cables from the System board and remove the bumper assembly.
4. On the left side of the monitor, remove the 3 screws and set the bumper assembly
parts aside.
5. Push the Display board and the System board (as a unit) from the right side of the
housing out the left side until you can easily disconnect the line power cable and
battery cable from the System board. Disconnect both cables.
6. Note which slots in the housing are used for the boards. Then, slide the boards all the
way out the left side of the housing.
NOTE: If you dislodge the Alarm Silence button, the power button, and/or the power
button pad, set the part(s) aside until you reinstall the boards.
7. Connect the ribbon cable to the Trend Download board and to the System board.
8. Position all three boards in their slots in the left side of the housing. Slowly slide the
boards (as a unit) into the housing until you can easily connect the battery cable and
the line power cable to the System board. Connect the cables.
9. Slide the boards all the way into the housing. Reposition the Alarm Silence button,
the power button, and the power button pad, as needed.
10. Remove the SpO
new bumper. Place the inner left end plate over the code ring.
11. Position the left bumper assembly over the left side of the housing, holding the inner
left end plate in place. Place the outer end plate over the left bumper and install the
3 screws that secure the bumper assembly to the housing.
12. At the right side of the housing, connect the speaker cable and the ComWheel
encoder cable to the System board. Position the cables inside the housing to ensure
they will not be pinched.
13. Place the right bumper assembly over the housing and tighten the 3 screws.
Important: Test the monitor and set the monitor clock. See Functional check earlier in
this chapter.
connector code ring from the old left bumper and install it in the
2
Service Procedures
4–7