User guide

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9.1 Power on Abnormal

WARNING:

DO NOT CONNECT OR DISCONNECT CABLES OR OTHER SYSTEM

COMPONENTS WITH POWER APPLIED.

9.1.1 Communications I/F Abnormal

<ERROR DESCRIPTION

The FC386 PCB did not communicate properly with the Multi PCB during the power on

initialization of the System.

1. Turn off the power. Remove the FC386 PCB and the Multi PCB, and verify they have

compatible software. This may be of concern if one of the boards has been replaced.

2. Verify correct installation of all removable IC chips on both the FC386 and MULTI PCBs.

Verify that the FC386 PCB battery is properly installed, and less than three (3) years old.

3. Reinstall the FC386 and Multi PCBs. Ensure that the boards are properly seated.

4. Verify that the Main Unit is not located near any strong electrical or magnetic fields.

5. Verify the Main Unit input voltage is within specifications and the power cable is properly

connected.

6. Turn on the power. If the Abnormal is not corrected, replace the Multi PCB. (Refer to

Section 8.3)

7. If the problem still exists, replace the FC386 PCB. (Refer to Section 8.3)

8. If the problem persists, replace the entire Main Unit. (Refer to Section 8.3)

9.1.2 Keyboard Failure

<ERROR DESCRIPTION

The FC386 PCB did not communicate properly with the keypad during System power on.

1. Ensure that the keypad is properly connected.

2. Replace the keypad with one that is known to be good.

3. Turn off the power. Remove the FC386 PCB. Verify correct installation of all removable

IC chips on the FC386 PCB. Verify that the FC386 PCB battery is properly installed, and

less than three (3) years old.

4. Reinstall the FC386 PCB. Ensure that the circuit board is properly seated.

5. Turn on the power. If problem persists, replace the FC386 PCB. (Refer to Section 8.3)

9.1.3 CMOS Power on Self-test (POST) Failure

<ERROR DESCRIPTION

Several different types of failures may occur during the System's Power On Self-Test (POST),

but the Check Items are the same for each. This type of failure will occur when the System's

physical configuration is not compatible with the CMOS configuration.

1. Turn off the power. Remove the FC386 PCB. Verify correct installation of all removable

IC chips on the FC386 PCB. Verify that the FC386 PCB battery is properly installed, and

less than three (3) years old.

2. Reinstall the FC386 PCB. Ensure that the circuit board is properly seated.

Chapter 9: Troubleshooting User Console Version A3.53

Page 9-4