Using the front panel evaluation board

UM0460

12/23

3.2

CH_DOWN

The CH_DOWN is a key which can be used to decrease the channel numbers. When the

key is pressed, it shows the decreased channel number by one value on the LED display, as

shown in Figure 7.

For example if the previous channel selected in the system was 015, then upon pressing the

CH_DOWN key the decreased channel number CH - 014 appears on the LED display, as

shown in Figure 6.

On a subsequent press of the key, the channel value on the LED display decreases.

Note:

1

The channel number decreases at every press of the CH_DOWN key until the channel

number reaches the minimum value of 000. After that the channel number rolls over to the

value 100.

2

To save the channel selected in the system, the user must press the 'OK' key of the front

panel, otherwise the channel number will not be saved in the system.

3.3

BRGHT+

On pressing the BRGHT+ key, the brightness of the LED display reaches the next increased

level and the value of the brightness level appears on the LED display.

For example if the previous level of the brightness of the LED display was 11 - 16, then upon

pressing the BRGHT + key, the brightness of the LED display increases and 12 - 16 appears

on the LED display indicating the present brightness value of the LED display, as shown in

Figure 9.

Figure 9.

BRGHT+ key press

On every press of the BRGHT+ key, the brightness level of the LED display increases until it

reaches the maximum value of 14 - 16. If the BRGHT+ key is pressed again, then the

brightness of the LED display rolls over and reaches the minimum value of 1 - 16, as shown

in Figure 10.