EML-L29V100R001 Advanced Maintenance Manual V2.1
prototype and is also used for device
commissioning and testing during the R&D
process.
Power supply,
protective circuit,
and SIM card tray
Includes the SIM card tray and related
connection circuits.
LCD drive,
connection method,
and backlight
control
Both the phone screen and the LCD backlight
brightness are controlled using the CABC and
LABC functions.
Drive method,
connection method,
and speaker
components
The power of the speaker that plays polyphonic
ringtones for incoming calls can be 500 mW.
This unit features good frequency responses to
play 20 Hz to 20 kHz audio files and can also
be used as a mono speaker to play MP3 files.
Drive method,
connection method,
and receiver-related
components
The power of the receiver for calls must be less
than 30 mW.
Port circuit,
connection method,
and
microphone-related
components
The phone features dual built-in silicon
microphones with noise reduction.
Headset, headset
jack circuit, and
microphone port
circuit
The phone provides a headset jack for call
output or MP3 output. The microphone is
located on the headset line to transmit the
sound to the phone.
Drive method,
connection method,
and vibrator
This unit vibrates when a call is received.
The accelerometer is an auxiliary module of the
game engine.
3-axis angular rate sensor
Senses ambient light and proximity light.
Power
distribution
network and
Power distribution
network
This unit includes filtering networks and cables
for the power supply.
PMIC charges the capacitor for maintaining the
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General
Weight and Dimensions
