Chapter 5 259
Post-Repair Procedures
Front Panel Test
Front Panel Test
Purpose
The front panel test checks the functionality of the instrument front
panel keys and the RPG knob.
Test Setup
Press Mode, More, Service, More, Front Panel Test. Once the Front Panel
Test key is pressed you will see a display with three columns appear on
the screen. The entries on the left side of each column describe a key.
On the right side of each entry you will see a 0.
The front panel test requires you to press each of the front panel keys
(in any order, with the exception of the
ESC key, which must be pressed
last), and to turn the RPG knob. The first time you press a key a 1 will
replace the 0 that originally appeared to the right of the key column.
Each additional instance of pressing a given key will result in an
increment to the number listed in the column to the right of the key
description. For example if you press the
Zoom key four times, you will
see a 4 to the right of the Zoom entry.
Rotating the RPG knob will result in a rapidly incrementing, or
decrementing value appearing in the column to the right of the RPG
Knob entry. Rotate the RPG knob clockwise and counter-clockwise. You
will see negative or positive values appear, in ascending or descending
order, depending on the direction you have turned the RPG knob.
Note that the two step keys (the up and down arrow keys) are described
as the Rpg Dn and Rpg Up keys.
The
ESC key must be pressed only after all other keys have been
pressed and the RPG knob has been rotated; pressing the
ESC key will
cause the front panel test to be cancelled.
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