Page 2 - Service Guide Version and Revision; Version; Initial
Service Guide Version and Revision Version Release Date Revision History TPV model A00 Sep-29-2006 Initial Release TC6MMADKWGAGACP 2
Page 3 - Copyright; Disclaimer
Copyright Copyright © 200 6 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, ...
Page 4 - Preface; user's authority to operate the equipment.
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 req...
Page 5 - Precautions; monitor from damage due to power surges.; Notes; then turn it on again to make sure the flicker disappears.
Precautions z Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. z 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. U...
Page 6 - Table Of Contents
Table Of Contents Chapter 1 Monitor Features ………………………………………… 6 Introduction ……………………………………… 7 Electrical Requirements ……………………………………… 8 LCD Monitor General Specification ……………………………………… 9 LCD Panel Specification ……………………………………… 11 Support Timing ……………………………………… 13 Monitor Block Diagram ………………………………...
Page 7 - Monitor Features; Chapter 1; Introduction; Scope; Separate / Compatible
Monitor Features Chapter 1 Introduction Scope This specification defines the requirements for the 19” MICROPROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15-pin D-sub VGA connector and 24-pin DVI connector, also supports VESA...
Page 8 - Electrical Requirements; Standard Test Conditions
Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light : Dark room Viewing distance : 40 cm for LCD performance, 20 cm for LCD failures Warm up time All specifications : ＞ 30 minutes Fully functional : 5...
Page 9 - LCD Monitor General Specification
Page 11 - LCD Panel Specification; General Specifications
LCD Panel Specification LCD Panel Model (M220Z1-L01) General Specifications Mechanical Specification 11
Page 13 - Supported Timing; VESA MODES
Supported Timing VESA MODES Horizontal Vertical Mode Resolution Total Nominal Frequency +/- 0.5kHz Sync Polarit y Nominal Freq. +/- 1 Hz Sync Polari ty Nominal Pixel Clock (MHz) 640x480@60Hz 800 x 525 31.469 N 59.940 N 25.175 640x480@72Hz 832 x 520 37.861 N 72.809 N 31.500 VGA 640x480@75Hz 840 x 500...
Page 14 - Monitor Block Diagram; KEY BOARD; Audio IC
Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and keypad board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel and the DC-DC conversion, The Adapter will provides the 12V DC-power to in...
Page 15 - Panel; MAIN BOARD DIAGRAM
Main Board Diagram U402 PM25L010-25 RXD/TXD KEY Control AT24C16 U403 Panel PA 0~9 PB 0~9 CAT24WC08 U407 U401 TSUMU58WHJ HS/V VAA3 VCC1.8V VCC3.3V VAA1 VAA4 VAA2 DDC CLK1/DAT1 AT24C02 (DDC)U301 DDCA SCL/SDA VGA Input VGA R/G/B VGA Hsync/Vsync AT24C02 (DDC)U302 DVI Signal R/G/B Clk+/Clk- DDCD SDA/SCL ...
Page 16 - Software Flow Chart
Software Flow Chart 1 2 N Y 5 Y N 10 Y N 12 Y N 7 Y N 6 4 8 9 14 11 13 Y N 15 Y N 16 17 19 N 18 Y 3 16
Page 18 - Main Board Layout; Symbol Description Symbol Description
Main Board Layout Symbol Description Symbol Description U401 IC TSUMU58WHJ-LF PQFP-128 U702 LM3485 MSOP-8 NS X401 CRYSTAL 14.318MHzHC-49US CN302 DV1 CONNECTOR 24 PIN U601 IC TDA7496T 1.2W*2 DIP-20 ST CN601 WAFER 4P RIGHT ANGLE U403 M24C16-WMN6TP CN702 WAFER 6P RIGHT ANGLE PITCH 2.0 U402 IC PM25LV010...
Page 19 - Chapter 2; Adjusting the viewing angle; NOTES
Chapter 2 Adjusting the viewing angle • For For optimal viewing it is recommended to look at the full face of the monitor, then adjust the monitor’s angle to your own preference. • Hold the stand so you do not topple the monitor when you change the monitor’s angle. • You can adjust the angle of the ...
Page 20 - Rear Bezel; Item Description Item Description; External Adapter
Rear Bezel Item Description Item Description 1. D-SUB Cable 4. External Adapter 2. DC-Jack Power Cable 5. DVI Cable 3. AC Power Cord 6. Audio Cable 20
Page 21 - Operating Instructions; The power cord should be connected.; External Controls; Auto Adjust Key/Exit
Operating Instructions Chapter 2 Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. • The power cord should be connected. • Connect the video ...
Page 22 - Front Panel Control; activate the Auto Adjustment function.
Front Panel Control • Power Button: Press this button to turn the monitor ON or OFF. And display the monitor’s state. • Menu / Enter: Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD menu when in Volume Adjust OSD status. • < Volume: Activat...
Page 23 - Adjusting the Picture; How to Adjust a Setting; Only Analog Input model
Adjusting the Picture How to Adjust a Setting 1. Press the MENU-button to activate the OSD window. 2. Press <or >to select the desired function. 3. Press the MENU-button to select the function that you want to adjust. 4. Press < or >to change the settings of the current function. 5. To e...
Page 24 - The Description For Control Function
Page 26 - b. The Description For OSD Message; Item Description
Hot-Key Menu a. Outline b. The Description For Hot-Key Function Item Operation Icon Description Volume When the OSD is closed, press Left or Right button will be Volume Hot-Key Function Volume of Audio adjustment. The Audio will be Mute when volume=0 OSD Message a. Outline b. The Description For OSD...
Page 27 - Logo; How To Optimize The DOS-Mode
Logo When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host ...
Page 28 - Machine Disassembly; Chapter 3; Disassembly Procedure
Machine Disassembly Chapter 3 This chapter contains step-by-step procedures on how to assemble the monitor for maintenance. Disassembly Procedure 1. Remove two screws to release back cover. (Fig 1) 2. Remove connector wire with base and panel, base and inverter. (Fig 2) Fig 1 Fig 2 28
Page 33 - Troubleshooting; Chapter 4
Troubleshooting Chapter 4 This chapter provides troubleshooting information for the AL2251W: 1. No Power NG OK Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Measure U201 PIN2=2.5V U202 PIN2=3.3V Reinsert or check the Adapter/Inverter X601...
Page 34 - NG
2. No Picture The button if under control X601 oscillate waveform is normal Replace U601 Replace X601 Measure U201 PIN2=2.5V U202 PIN2=3.3V Check Correspondent component Replace U401 X401 oscillate waveform is normal Replace U201, U202 OK OK OK OK OK NG NG NG NG Check reset circuit of U601 is normal...
Page 36 - No Backlight
Page 38 - Connector Information; Chapter 5; Description
Connector Information Chapter 5 The following figure shows the connector locations on the monitor: 1 5 6 10 11 15 15 – Pin Color Display Signal Cable (D-sub) Pin No. Description Pin No. Description 1. Red 9. +5V 2. Green 10. Logic Ground 3. Blue 11. Monitor Ground 4. Monitor Ground 12. DDC-Serial Da...
Page 39 - FRU (Field Replaceable Unit) List; Chapter 6
FRU (Field Replaceable Unit) List Chapter 6 This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL2251W.Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please note WHEN ORDERING FRU PARTS, that y...
Page 41 - Part List; Item Picture; Hinge Cover
Part List Above picture show the description of the following component. Item Picture Description 1 Hinge Cover 2 Bezel 3 Back Cover 4 Shield 5 Main Frame 41
Page 43 - Schematic Diagram; Chapter 7; Main Board; Top
Schematic Diagram Chapter 7 Main Board Top VCC12V_AUDIO B5 5.PANEL INTERFACE VLCD PB[0..9] PA[0..9] 6.AUDIO 6.AUDIO AUDIO_SD AUDIO_MU VCC12V_AUDIO Volume VCC3.3 TSUMU58J-SCHEMATIC VCC1.8 PA[0..9] VLCD VCC1.8 VCC3.3 B4 2.POWER onPanel_5V/3.3V onBACKLITE AdjBACKLITE VCC3.3 VCC1.8 VCC12V_AUDIO VLCD VCT...
Page 44 - Power
Power Q701PMBS3904 VCC5V VCC5V VCC12V_AUDIO FB701 BEAD 12 3 4 5 6 R704 20K 1/10W C717 0.1uF VCC12V L701 2.2UH C706 0.001uF CN702 CONN 1 2 3 4 5 6 R702 22 1/8W D702 SBM84PT AdjBACKLITE 5 POWER D TSUMU58J FOR ACER A3 3 7 Wednesday, August 09, 2006 Title Size Document Number Rev Date: Sheet of + C7...
Page 45 - Input
Input VSI C314 0.1uF R320 100 1/10W D317 BAV99 3 1 2 C309 0.047uF C324 0.1uF PC5V C312 220pF D306 MLL5232B 5.6V 1 2 R321 100 1/10W CLK_DDC SOG 5 C315 0.1uF D321 BAV99 3 1 2 R332 10 1/10W R312 100 1/10W R335 10 1/10W R304 470 1/10W C316 0.1uF C322 0.1uF D309 MLL5232B 5.6V 1 2 HPD_CTRL 4 H...
Page 46 - Scaler
Scaler PA5 R429 100 1/10W Q402 PMBS3906 R425 10K 1/10W SW403 SW 2 4 1 3 PB2 AVDD_18 KEY_LEFT KEY_MENU C456 0.1uF + C418 10uF/16V C416 0.1uF R455 10K 1/10W VCC3.3 C421 22pF D406BAV99 3 1 2 + C455 22uF/16V C402 0.1uF VDDP WP R426 10K 1/10W R490 10K 1/10W D404 BAV99 3 1 2 VCC3.3 PB0 DDCA_SCL ...
Page 47 - Panel Interface; PANEL INTERFACE
Panel Interface RXO1+ LVB1P 2006.05.03 add the schematic LVA0M LVB0P PB9 RXE1- PB0 PA9 LVA2P PANEL INTERFACE D TSUMU58J FOR ACER A 6 7 Thursday, July 20, 2006 Title Size Document Number Rev Date: Sheet of RXOC+ RXE2- LVBCKP LVA3M LVB2P RXE2+ LVB3P RXE3+ LVACKP LVB0P RXO2- LVA2M PA6 PB[0..9] LVA2M RX...
Page 48 - Audio
Audio AUDIO_SD C613 0.1uF R604 1K 1/10W C610 1uF/25V CN601 CONN 1 2 3 4 VCC12V_AUDIO R 60 6 20K 1 /1 0W R608 75 1/10W R 60 5 20K 1/10W FB603 120 OHM OUT_L OUT_R C603 0.1uF FB604 120 OHM C614 NC + C602 220uF/16V R602 18K 1/10W R601 18K 1/10W FB602 120 OHM C617 NC OUT_L + C601 220uF/16V &l...
Page 49 - Power board
Power board OP2 Q802 PMBS3904 R814 100K 1/10W C814 5pF/3KV C831 4.7uF/16V C 8 2 9 0 .1 u F /2 5 V IC801 OZ9938GN 12 34 56 78 9 10 11 12 13 14 15 16 DRV1 VDDATIMER DIMISEN VSENOVPT NC1 NC2 ENA LCT SSTCMP CT GNDA DRV2 PGND R837 39 1/8W R808 0 1/10W ACER 22 R803 470 1/4W CN803 CONN 1 2 +5V D811...
