Acer MB243WABNS service manual Scope

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ACER G24

1. Product Specification

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1.1 SCOPE

This document defines the design and performance requirements for a 24W inch diagonal , flat panel monitor

.The display element shall be a WUXGA (1920x1200) resolution TFT-LCD (Thin Film Transistor Liquid Crystal Display).16.7M color(RGB Hi+FRC) images are displayed on the panel.Video input signals are analog RGB (0.7Vp-p). When the systemis powered-on , previously stored screen parameters for a pre-defined mode will be recalled if the operating mode is one of stored in memory( 24 factory , 9 users timing ).This monitor operates normal by non- interlaced mode. DDC (Display Data Channel) function is DDC2Bi compliance Power saving function complies with the DPMS (Display Power Management Signaling) standard.

1.2GENERAL REQUIREMENTS AMLCD: LTM240CT01

LTM240CT03

1.2.1Test Condition

Brightness level & contrast level max. Full white pattern test mode following spec. Warm up more than 1 hr, ambient light < 10 Lux , Luminance meter CA110 or BM7 or same equipment .

1.2.2 Test Equipment

The reference signal source is a calibrated Chroma 2135 video generator or higher.The use of other signal generators during qualification and production is acceptable provided the product complies with this specification.

1.3ELECTRICAL

This section describes the electrical requirement of the monitor. The LCD monitor consists of an interface board , a power board , a function key board. The interface board wil l house the flat panel control logic , brightness control logic, audio function control (option), key function control, DDC and DC to DC conversion to supply the appropriate power to the whole board and LCD flat panel , and transmitting LVDS signals into LCD flat panel module to drive the LCD display circuit .The power board will support main power DC5V to interface board, and the power DC5.3V to audio function power of interface board, and drive the two CCFLs (Cold Cathode Fluorescent Tube).The interface board provides the power ON / OFF control over the whole monitor and control for DPMS LED indicator to function key board.

		MONITOR SPECIFICATIONS
	ITEM			SPEC
Signal Input		Frequency	Analog :
			H : 30kHz~94kHz
(Analog)			V : 55Hz~76Hz
		Pixel clock	205MHz (Max)
		Video Input	Analog	0.7Vp-p
		Display Pixels	640 x 480 (VGA) ~ 1920 x 1200 (WUXGA)
		Sync Signal	Separate SYNC for TTL (N or P)
Signal Input		Frequency	Digital :
			H : 30kHz~94kHz
(Digital)			V : 55Hz~76Hz
		Pixel clock	165MHz (Max)
		Video Input	Analog	0.7Vp-p
			Input Impedance 75Ω
		Display Pixels	640 x 480 (VGA) ~ 1920 x 1200 (WUXGA)
Connector		AC Input	AC100V ~ AC240V ± 10% 50/60Hz , 3 pin AC power cord
		Input connector	D-SUB 15 pin & DVI-D
		Audio Jack (OPTIONAL)	Audio input 3.6F
Power Consumption		AC in 100V~240V	active 90W, power saving < 2W
User's Control		Front	Empowering,Auto Adjust,Adjust(-),Adjust (+),Menu,Power
		OSD	Contrast , Brightness , Position ,Clock ,Phase
			,Analog/Digital,RESET, Color , Language select , etc.
Pre-Defined Timing		Factory	24
		User	9
Plug and Play			VESA DDC2Bi
Power Saving			VESA DPMS
Input Signal Counter Tolerance			≦ H ± 1kHz, ≦ V ± 1 Hz

1.3.1Interface Connectors

1.3.1.1Power Connector and Cables

The AC input shall have an IEC/CEE-22 type male power receptacle for connection to mains power. The power cord shall be with length of 1.8+/-0.005

meters.

1.3.1.2 Video Signal Connectors and Cable

The signal cable shall be 1.8 +/-0.005 meters long. At the end of the cable shall be a molded-over, shielded,triple row, 15 position, D-subminiature connector. The CPU connection shall have captive screw locks, which will be adequate for hand tightening. The monitor connection may use small screws.