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Acer X233HZ&X243HQ
Service Guide
1
http://www.wjel.net
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Service Guide Version and Revision Version Release Date Revision History Customer model TPV model A00 Dec.-18-2008 Initial Release X233HZ&X243HQ TDRMNDD8Y1ABPN 2 http://www.wjel.net
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Copyright Copyright © 2003 by Acer Incorporated. All rights reserved. No part of this publication may be reproduced, Transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes n
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Preface Before using this information and the product it supports, please read the following general information. 1. This Service Guide provides you with all technical information relating to the BASIC CONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements and enhance product competitiveness, your regional office may have decided to extend the functionality of a machine (e.g. add-on card, modem, or extra memory capability). These LOCALIZED FEAT
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Precautions Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance. Use only a trolley or stand recommended by the manufacturer or sold with the monitor. If you mount the monitor on a wall or shelf, uses a mounting kit approved by the manufacturer and follow th
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Table Of Contents Chapter 1 Monitor Features ………………………………………… 7 Introduction ……………………………………… 7 Electrical Requirements ……………………………………… 8 LCD Monitor General Specification ……………………………………… 9 LCD Panel Specification ……………………………………… 10 Factory Preset Timing ……………………………………… 13 Monitor Block Diagram ……………………………………… 14 Main Board Diagram ……………………………………… 15 Software Flow chart ……………………………………… 16 Main Board Layout ……………………………………… 18 Installation ……………………………………… 19 Chapter 2 Operat
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Monitor Features Chapter 1 Introduction Scope This short specification describes the electrical, optical and functional performance requirements for a 63.2cm (23.6”) TFT LCD color monitor with VGA&DVI compatible interface. Description The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation. This will alleviate the growing health concerns. It is also a space savin
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Electrical Requirements of X233HZ&X243HQ Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Warm up time ＞ 30 min. AC supply voltage 230V± 5 ％, 50± 3 Hz Ambient temperature 20°C ± 5°C Humidity 65% ± 20% Display mode 1920 x 1080, 60 Hz, Pixel Clock ：148.5MHZ,all white e-color mode Set to “User” mode Set to The value under user mode, which allows that the brightest Contrast control two of 32 linear distributed gray-scales
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LCD Monitor General Specification Model name X233HZ&X243HQ Driving system TFT Color LCD Active Display Area 525.22 (H) x 297.22(V) Pixel pitch 0.2715(H) x 0.2715(V) LCD Panel Contrast Ratio 1000 : 1 (typ) Response time 5ms(Typ.). 8ms(max) 2 Luminance of White 300 cd/m (Typ.) Separate Sync. H/V TTL Input H-Frequency 30kHz – 83kHz V-Frequency 56-75Hz Viewing angle (H)90 (V) 90(Type) Display Colors 16.7M Display mode 1920 x 1080 @60Hz ON Mode < 65W EPA ENERGY STAR® OFF Mode <
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LCD Panel Specification of X233HZ&X243HQ M236H1-L01 is a 23.6” TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1920 x 1080 Full HD mode and can display up to 16.7M colors. The inverter module for Backlight is not built in. General Specifications Block Diagram TFT LCD Module 10 http://www.wjel.net
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Back light Unit Electrical Characteristics 11 http://www.wjel.net
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Optical Specifications 12 http://www.wjel.net
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Factory Preset Timing of X233HZ&X243HQ VESA MODES Horizontal Vertical Nominal Nominal Nominal Sync Sync Pixel Mode Resolution Total Frequency Freq. Polarity Polarity Clock +/- 0.5kHz +/- 1 Hz (MHz) 640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175 VGA 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500 800x600@56Hz 1024 x 625 35.156 N/P 56.250 N/P 36.000 SVGA 800x600@60Hz 1056 x 628 37.879 P 60.317 P 40.000 800x600@72Hz 1040 x 666 48.077 P 72.188 P 50.000 1024x768@60Hz 1344x806 48
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Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, a usb board and a key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage. Flat Panel and USB board CCFL Drive. CCFL backlight Main Board Power Board AC-IN 100V-240V Key board DVI Signal D-SUB Signal
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Main Board Diagram Crystal 12MHz Panel Interface (CN301) (X401) Scalar IC NT68667UFG/C Key control Interface Flash Memory SST25VF010A (Include MCU, ADC, OSD) (CN402) (U402) (U401) H sync V sync D-Data RGB D-Clock D-Sub DVI Connector Connector (CN101) (CN102) 15 http://www.wjel.net
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Software Flow Chart 1 Y 2 3 N N 4 N 5 Y 6 N 7 8 Y 9 Y N 10 11 Y N N 12 13 Y Y N 14 15 16 Y 17 N 18 19 Y 16 http://www.wjel.net
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Remark: 1) MCU initializes. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode. 9) Save the power key status into EEPROM. Turn on the LED and set it to green color. Scalar initializes. 10) In standby mode? 11) Update the lifetime of back light. 12) Check the analog port, are there any signals coming?
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Main Board Layout Symbol Description Symbol Description U401 IC NT68667UFG/C QFP-128L CN402 WAFER U703 IC LD1117DT33TR DPAK CN701 WAFER 9P RIGHT ANELE PITCH U103 IC AZC099-04S SOT23-6L CN301 CONNECTOR U104 IC AZC099-04S SOT23-6L X401 CRYSTAL 12MHz HC-49US ARG6-120 D-SUB 15PIN VERTICAL CONN WITH U402 SST25VF010A-33-4C-SAE CN101 SCREW U702 IC AZ1117D-1.8-E1 CN102 DVI 24PIN CONN F 18 http://www.wjel.net
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Installation To install the monitor to your host system, please follow the steps as given below: Steps 1. 1-1 Connect Video Cable a. Make sure both the monitor and computer are powered-OFF. b. Connect the VGA video cable to the computer. 1-2 Digital Cable (Only Dual-Input Model) a. Make sure both the monitor and computer are powered-OFF. b. Connect one end of the 24-pin DVI cable to the back of the monitor and connect the other end to the computer’s port. Steps 2. Connect power cord
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Attaching / Removing the Base Install: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base. Remove: Depress the release button as indicated first before removing the base and follow the arrow direction to remove it. SCREEN POSITION ADJUSTMENT In oder to optimize the best viewing position, you can adjust the tilt of the monitor by using both of your hands to hold the edges of the monitor as shown in the figure below. The monito
