AT&T 75 manual Testing, Care and Cleaning, To test the alphanumeric display and the lamps

CHAPTER 7. ROUTINE MAINTENANCE

CHAPTER 7. ROUTINE MAINTENANCE

Testing

The only routine maintenance required for the attendant console is a test of the alphanumeric display and the console lamps. Perform this procedure often (at least weekly) and notify the System Manager if the console does not operate properly.

To test the alphanumeric display and the lamps:

1.Open the panel on the front of the console (see Figure 2-1or 2-2).

2.Press and hold the Lamp Test switch (located at the left front of the console).

•All lamps in the alphanumeric display should light.

ŽEach row of lamps on the console and the selector console should light and go dark in sequence from top to bottom.

ŽTimed-reminder tone heard.

3.Release the Lamp Test switch.

• Lamps return to their former state.

•Timed-reminder tone stops.

4.Close the panel.

Care and Cleaning

To clean the console, use a slightly dampened paper towel or soft cloth. In most cases, this procedure should be sufficient. Oily substances on the console may require a fair amount of rubbing or even the use of a mild cleaner, such as window cleaner or desk and office cleaner. However, if a cleaner is used, it should not be applied directly to the console, but should be applied to the cloth and then rubbed onto the console.

Be careful not to spill any type of liquid on the console. Liquids spilled on the console will leak inside and damage the electronic components.

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