Acer RB23WABAS service manual Scope

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ACER H233H

1. Product Specification

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This model combine with three platform. See below explanation.

1.Scaler IC:RTD2482D used in VGA ,DVI and HDMI port Using simply word to define it(1A1D1H)

2.Scaler IC:RTD2482 used in VGA and HDMI port. Using simply word to define it(1A1D)

3.Scaler IC:RTD2482RD used in VGA ,DVI and HDMI port

.Using simply word to define it.(1A1D1H+OD)

The product specification demonstrate all of the model:

1.1 SCOPE

This document defines the design and performance requirements for a 23W inch diagonal , flat panel monitor . The display element shall be a 1920x1080 resolution TFT-LCD (Thin Film Transistor Liquid Crystal Display).16.7M color(Hi-FRC) images are displayed on the panel.Video input signals are analog RGB (0.7Vp-

p). When the system is powered-on , previously stored screen parameters for a pre-defined mode will be recalled if the operating mode is one of stored in memory( 2213 factory timing mode).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

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 CA210 or BM7 or same equipment

1.2.2Test Equipment

The reference signal source is a calibrated Chroma 2237 video generator or higher. The use of other signal generators during qualification and production is acceptable provided the product complies with this specification.

1.3 ELECTRICAL

This section describes the electrical requirement of the monitor.

The LCD monitor consists of an interface board, a power board and inverter board, a function key board.

The interface board will 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 drive the two CCFLs (Cold Cathode Fluorescent Tube).

The interface board provides the power ON / OFF control over the power board.

Whole monitor to control the DPMS LED indicator to function key board.

MONITOR SPECIFICATIONS

	ITEM		SPEC
Signal Input		Frequency	Analog:
(Analog)			H:31kHz~94kHz
			V:50Hz~75Hz
		Pixel clock	205MHz (Max)
		Video Input	Analog 0.7Vp-p
		Display Pixels	640 x 480 (VGA) ~ 1920 x 1080
		Sync Signal	Separate SYNC for TTL (N or P)
Signal Input		Frequency	Digital:
(Digital)			H:31kHz~94kHz
			V:50Hz~75Hz
		Pixel clock	165MHz (Max)
		Video Input	Analog 0.7Vp-p
			Input Impedance 75Ω
		Display Pixels	640 x 480 (VGA) ~ 1920 x 1080
Connector		AC Input	AC100V ~ AC240V 10% 50/60Hz, 3 pin AC power cord
		Input connector	D-SUB 15 pin, DVI-D & HDMI
		Audio Jack (OPTIONAL)	Audio input 3.6Φ
Power Comsumption		AC in 100V~240V	Active 50W(non-USB)/60W(w/USB), power saving < 2W
User’s Control		Front	Input ,E-KEY, Auto Adjust ,Menu Adjust(-), Adjust(+),Power
		OSD	Contrast, Brightness, Position, Clock, Phase, Analog/Digital,
			Reset, Color, Language select, etc.
Pre-Defined Timing		Factory	13
		User	9
Plug and Play			VESA DDC2Bi
Power Saving			VESA DPMS
Input Signal Counter Tolerance			≦H 1 kHz, ≦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.