Service manual

L9CMonitor
L9C service manual Page21 of 48
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d) OSD :
The TSU16AK has a fully programmable, high-quality OSD controller. The on-chip
Static RAM (256 different fonts at size of 12X18) stores the cell map and the cell
definitions.
e) Inverter Brightness control (PWM0) (Pin 73)
The TSU16AK has one PWM output PWM0(Pin73) to control Inverter Brightness
Range.
f) Panel LVDS interface (Pin 102~103, Pin106~113, Pin118~125, Pin128, Pin1)
The TSU16AK driver interface is highly programmable. It supports LVDS port for
panel.
4.1.2 Micro controller……MTV312 (U5)
The MYSON MTV312 microcontroller serves as the system microcontroller.That is , it programs the
TSU16AK and manages other devices in the system such as the keypad, the backlight, LED and
audio
general purpose input/output pins.
Pin number Pin name Pin function
23 P1.5 Key-Sel/Auto
22 P1.4 Key-Menu
16 P6.2 Key-Left
21 P1.3 Key-Power on/off
41 P5.4 LED-Green
9 P6.3 Key-Right
25 P1.7 Key-Down
24 P1.6 Key-Up
29 P3.0/RXD/HSCL SCL-VGA/RxD(Debug)
28 P3.1/TXD/HSDA SDA-VGA/Txd(Debug)
19 P3.2/INT0 INT
18 P1.1 SDA(Debug)
20 P1.2 SCL(Debug)
26 P6.1/AD1 RESET
42 P5.3 LED-Orange
37 P4.1 Audio-Mute
40 P5.5 Audio-Stby-Power
36 P4.0 Inverter On/Off
3 P5.0 Panel power On/Off