Service Procedures4–13Housing disassemblyParts: Power button pad Display board BatteryPower button System board Line power hardwareAlarm Silence button Trend Download board Handle and housing1. Push all the boards (as a unit) from the right side of the housing out the left side untilyou can easily disconnect the line power cable and the battery cable from theSystem board. Disconnect the cables.2. Note which slots in the housing are used for the boards. Then, slide the boards all theway out the left side of the housing.3. Remove the Alarm Silence button, the power button pad, and the power button.4. Disconnect the ribbon cable from the Trend Download board and the System board.5. Gently separate the System board and Display board at the board-to-boardconnector.6. Push (do NOT pull) the battery straight out the left side of the housing. Be sure not todamage the battery cover.7. Using a 3/8 inch nut driver, remove the nut and washer that secure the powerassembly jack. Remove the power shield and all line power hardware.8. Press down on the handle so that it extends out the left side of the housing. Gentlylift the tabs away from the housing to release the handle.Monitor assemblyRefer to the assembly drawing as you assemble the monitor. See TruSat assemblydrawing later in this manual.Housing assembly1. Position the right end of the handle in the slots in the right side of the housing. Pressdown on the handle until the left end extends beyond the left side of the housing.Gently bend the tabs as needed to position them in their slots on the left side of thehousing. Slide the left end of the handle into the housing.2. Inside the housing, position the line power jack in the housing. Outside the housing,place the power shield over the hole, then install the washer and nut over the powerjack post. Install the power jack nut, using a 3/8 inch nut driver.3. At the left side of the housing, position the battery in its slot with the side containingthe cable facing toward the center of the housing. Slide the battery into the housing,taking care not to tear or slit the battery wrap.4. Connect the System board to the Display board at the board-to-board connector.5. Position the Trend Download board beside the System board and connect the ribboncable to both boards.6. Inside the housing, position the small power button in the power button hole.7. Position the boards in their slots in the left side of the housing. Slowly slide theboards (as a unit) into the housing until you can easily connect the battery cable andthe line power cable to the System board. Connect the cables.8. Install the Alarm Silence button inside the housing. Position it so that the alarm LEDis not covered.