- 59 -
capable of expanding any source resolution to a highly uniform and sharp image or down
scaling from 1980x1020, combined with the critically proven integrated 8 bit triple-ADC
and patented Rapid-lock digital clock recovery system. It also support detect mode and
DPMS control.
3.) RTD2120L: Control unit, it controls all the functions of this interface board, just like the
OSD display setting, the adjustable items, adjusted data storage, the external IIC
communication, support DDC2Bi. .
4.) EEPROM: We use 24C016 to store all the adjustable data, user settings and HDCP Key
and use 2 of 24C02 to store DVI and D-SUB EDID data.
A-2.) Control board introduction :
There are 6 keys for user's control which includes “Menu”, “Right”, “Left”, “Auto”,
“Empowering”, and “Power”. The following descriptions are the introduction of these keys.
(1) “Menu” key: to enter sub-menus or select items.
(2) “Right” key: to select previous and to increase adjustment
(3) “Left” key: to select next and to decrease adjustment
(4) “Auto” key: to perform auto adjustment and Exit key
(5) “Empowering”: to Open the Acer eColor Management OSD and access the scenario
modes
(6) “Power” key: to turn/off power of monitor
(7) LED: It indicates the DPMS status of this LCD monitor; green light means DPMS on
(Normal operating condition). Amber light means DPMS off (Power Saving).
A-3.) Power board diagram:
EMI Filter
Rectifier and
filter
Isolation
power
transformer
Rectifier and
filter
Inverter circuit
PWM contrller
Switching
element
Audio circuit
Feedback
Isolation
Rectifier and
filter
LDO regulator
Fig.1
To Next Page
Loading...
