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M2540-92000-01 A M2540 Ultrasound System Field Service Manual Page 159
Service Procedures: System Control Panel
➤ Replacing the System Control Panel
To replace the system control panel, see Figure 13-5 on page 193 to locate parts and assemblies,
and complete the following procedure:
CAUTION Always observe proper ESD procedures when servicing circuit boards. Wear a grounded wrist
band, and work on a static-dissipating mat if possible.
1. Disconnect the system power cord from the main AC supply.
2. Remove the seven long and the nine short flathead screws that secure the control panel to
the control panel surround.
3. Push up on the bottom of the trackball, and lift the front edge of the control panel.
4. Disconnect the USB cable, the twisted-pair audio cables, the power cable, and the soft key
ribbon cable from the control panel circuit board.
5. Remove the system control panel from the system.
6. Reverse step 5 through step 1 to install the control panel.
7. Perform all RST and system checks to verify performance.
CAUTION When installing the system control panel, make sure that none of the cables rests directly under
the control panel standoffs. The standoffs will cut any cables underneath them when the screws
are tightened.