STATIM 7000 Service Manual – Microprocessor
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18. Microprocessor
The microprocessor is static sensitive. Always wear a static strap when working
with or near this component. Transport it in a static protected bag.
Note the orientation of pin 1 for the device and socket. Ensure that the device is
fully inserted into the sockets.
To replace the microprocessor, perform the following steps:
1. Power
OFF
the unit, unplug it and remove the cover. See Cover.
2. Using a chip puller, remove the microprocessor from controller board
socket.
3. Discard the old microprocessor.
4. Install the new microprocessor.
5. After you install a new microprocessor calibrate. See Calibration.
6. When you power the unit
ON
, verify that the version number of the
microprocessor is briefly displayed. If the LCD fails to display the "select a
cycle" message, review the wiring connector placement and check that the