Speaker 47
E-EQ-VX3XRG-G VX3X Reference Guide
Speaker
The speaker is located on the front of the mobile device above the Power button.
The Speaker has a loudness of at least 90 dB (2700 Hz) at 10 cm measured from the front of the
unit. The Speaker volume is adjustable via the keypad or the Control Panel or by an application
through the use of an API call. There are 16 distinct volume levels. The minimum volume level is
0 (no sound) with a default setting of maximum non-distorted volume. The volume sticks at
maximum and minimum levels.
The speaker is disabled when a headset is plugged into the Audio Jack on the endcap.
Speaker volume is enabled and adjusted using the Control Panel “Volume & Sounds” option.
After the speaker has been enabled using the Control Panel option, speaker volume is adjusted
using the 2
nd
+ <F8> key sequence, if desired.
Operational “beeps” are emitted from the speaker.
The Display
The touchscreen display is an LCD unit capable of supporting VGA graphics modes. Display size
is 640 x 240 pixels. The display covering is designed to resist stains. The touchscreen allows
signature capture and touch input. A pen stylus is included. The touchscreen responds to an
actuation force (touch) of 4 oz. of pressure (or greater). The transmissive color display is
optimized for indoor lighting. It cannot be used without the backlight.
The display is automatically turned off when the System Idle timer or Suspend timer expires.
Cleaning the Display
Keep fingers and rough or sharp objects away from the display. If the glass becomes soiled or
smudged, clean only with a standard household cleaner such as Windex
®
without vinegar or use
Isopropyl Alcohol. Do not use paper towels or harsh-chemical-based cleaning fluids since they
may result in damage to the glass surface. Use a clean, damp, lint-free cloth. Do not scrub optical
surfaces. If possible, clean only those areas which are soiled. Lint/particulates can be removed
with clean, filtered canned air.
Set The Display Contrast
Adjusting screen contrast lightens or darkens the characters to make them visible at a comfortable
level. The contrast is incremented or decremented one step each time the contrast key is pressed.
To adjust screen contrast, locate the <F6> key at the top of the keypad. Adjust
the display contrast by pressing the:
• 2nd key then the <F6> key
• Use the Up Arrow and Down Arrow keys to adjust contrast until the display lightens
or darkens to your satisfaction.
• Press the Enter key to exit this mode.
The LED for the 2
nd
key blinks until the special editing mode (set contrast) is complete.
