Chapter 7

Warning!

Before replacing the rear panel fuse, disconnect the unit from the supply. Failure to do this may expose hazardous voltages. Unplug the unit from the local supply socket.

1.Ensure that power is turned off and the power cable is disconnected from the AC power inlet.

2.Ease out the fuse carrier by placing a small, flat-bladed screwdriver in the notch at the top of the carrier.

Caution...

When replacing the power input fuse, always ensure that a fuse of the correct type and rating is fitted. Failure to do so may result in inadequate protection.

3.Replace the fuse in the carrier.

4.Insert the fuse carrier back in the AC power inlet.

AC Power Inlet

To access the fuse, ease out the notch with a small flat- blade screwdriver.

Fuse Carrier

Figure 7.1 Fuse Carrier

If the replacement fuse also blows, do not continue. Disconnect the equipment and contact Ericsson Customer Services (see Preliminary Pages) for advice.

7.4.5Power Supply Problems

Warning!

Do not attempt to service the Power Supply Unit as opening or removing covers may expose dangerous voltages or other hazards. Refer all servicing to service personnel who have been authorized by Ericsson.

Use the following techniques to fault-find according to the observed symptom(s) when a power supply failure is suspected.

EN/LZT 790 0005 R1A

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