Notification Part; Key Pad Part; Lcd Module(Display Part) - Pantech G310 Service Manual

G310 Service Manual
3 Key Tone Generation
All alert signals are generated by the DSP and output to the EVBC.
These alert can be used for the earpiece.

4.1.4 Notification Part

The notification of incoming call is given by melody, vibrator, and 7color-LED.
1) Melody:
This is a device sounding alert/melody tones.
The melody datas are stored in flash memory (U104) And generated by Melody IC(U105).
2) Vibrator:
This is a device enabling vibration. The vibrator data is stored in flash memory(U104)
And generated by C5(GPO_23)pin.
3) 7color-LED:
This is a device to indicate a notification mode using the lamp.
U101 Nos. A10, A9 and C9 signal drives the lamp to flash.

4.1.5 Key Pad Part

To enable key operation to input information, the key matrix is configured using strobe signal of
KEYPADROW(0-4) and 5 input ports of KEYPADCOL(0-4). Also, to use the key even at light, the
backlight circuit is provided for LED 6s.

4.1.6 LCD Module(Display Part)

LCD module consists of LCD, controller, LED-Backlight, and LCD reflector.using dual LCD
Main LCD: 1S/W Icon x 1 lines[(128x3)x128] can be displayed on the LCD panel. 6 icons could be
provided by S/W. Controller with English font built in has been used.
Sub LCD: 1S/W Icon x 1 lines(96x64) can be displayed on the LCD panel. 6 icons are provided.
Controller with English font built in has been used.
LED-backlight Using illuminates the LCD panel, and LCD reflector enhances LCD display effect.
11
PANTECH R&D CONFIDENTIAL