FM Transmitter
Sistemas Electrónicos S.A EM 250 COMPACT DIG
Technical Manual - v1.1 - February 2006 10
• On the air green LED works together with STANDBY (2) yellow LED. It lights on when equipment
is in normal operating condition, whereas STANDBY (2) LED is turned off, and vice versa.
5 - Twin-row Alphanumeric dot-matrix LCD display, working directly with Microcontroller unit.
6 - DISPLAY CONTRAST potentiometer, to adjust LCD screen backlighting to a comfortable
contrast level in order to get easy readings.
8 - Programming and parameter selection keyboard:
White keyboard to scroll and navigate through the different menus and options.
OK key (blue). Enter key to confirm some order or command.
CANCEL key (orange). Escape key to cancel menu or command.
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