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4 select: front panel, 1 front panel: brightness, 2 front panel: lamp test – Comtech EF Data CPA User Manual

Page 76

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CPA C-Band Indoor Solid-State Power Amplifier

Revision 1

Front Panel Operation

MN/CPA-IN.IOM

5–20

Ref Osc: Vtune = 04.8

ExtRef: N/A

Press ENTER or CLEAR to return to the previous menu.

UTILITY: RefOsc

Adjust

Reference Frequency

Adjust 87

Use this menu to manipulate the reference oscillator adjustment. First, use the

◄ ►

arrow

keys to select the digit to edit, and then use the

▲▼ arrow keys to change that digit. Press

ENTER when done.

The default Reference Frequency tuning adjustment is 87, with allowable values from 0 to

255.

5.3.4

SELECT: Front Panel

Front Panel: Brightness

Lamp Test (◄ ► E)

Select Brightness or Lamp Test using the

◄ ►

arrow keys, then press ENTER.

5.3.4.1 Front Panel: Brightness

Display Brightness:

100%

Use the

▲▼ arrow to adjust the display brightness. The selectable values of brightness are

25%, 50%, 75%, or 100%. Press ENTER when the brightness is suitable.

5.3.4.2 Front Panel: Lamp Test

Lamp Test:

START

The Lamp Test menu runs a performance diagnostic on the front panel LED Indicator array. Press

ENTER to begin the test – as the LEDs cycles through the Lamp Test, the following message

displays:

Lamp Test:

TESTING

This test does not otherwise affect CPA operations while running.