Acer AL1706 Service Guide 1
Copyright Copyright © 2005 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, I 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.
Conventions The following conventions are used in this manual Screen Messages Denotes actual messages that appear on screen. NOTE Give bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions. Gives precautionary measures to avoid possible hardware or software problems. Reminds you to do specific actions relevant to the accomplishments of procedures.
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).
WARNING (FOR FCC CERTIFIED MODELS) NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
WARNING: To prevent fire or shock hazard, do not expose the monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet.
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. User only a trolley or stand recommended by the manufacturer or sold with the monitor. If you mount the monitor on a wall or shelf, use a mounting kit approved by the manufacturer and following the kit instructions.
the same image is displayed for hours. In this case, the screen is recovered slowly by changing the image or turning off the Power Switch for hours.
Table of Contents Chapter 1 Monitor Features 10 Monitor Features…………………………………………………………………… Factory Preset Timing Table…………………………………………………….. Monitor Block Diagram…………………………………………………………… Interface Board Diagram…………………………………………………………. Software Flow Chart………………………………………………………………. Interface Board PCB Layout…………………………………………………….. Front Bezel…………………………………………………………………………. Rear Cover…………………………………………………………………………. Chapter 2 Operating Instruction 20 Front Bezel Control………………………………………………………………..
MONITOR FEATURES Driving System LCD Panel Signal TFT Color LCD Size 17” Pixel pitch 0.264mm (H) x 0.264mm (V) Viewable angle 140ﾟ(H), 140 ﾟ(V) Brightness 270cd/m2 (typ.) Contrast Ratio 500:1 (typ.) Response Time 12ms (typ.) Video RGB Analog Interface (Analog only model) Separate Sync. H/V TTL H-Frequency 31.5KHz to 60.241KHz V-Frequency 56Hz to 75Hz Display Color 6bits+FRC Dot Clock 80MHz Max.
External Controls Switch Power Switch Menu > < Function Auto Contrast/Brightness Phase/Clock Color (Warm, Cool, User) Position, Timeout) H. Position/ V. Position Language Auto Config OSD (H. Position, V. Information Reset Exit Regulatory Compliance UL, CSA, TUS+GS, CG, PSB, B-MARK, PSE, Ergo, FCC, BSMI, VCCI, C-Tick, TCO99, CCC, WHQL FACTORY PRESET TIMING TABLE Standard Resolution Horizontal Frequency (KHz) Vertical Frequency (Hz) VGA 640 x 480 31.469 60.000 640 x 480 37.861 72.
Monitor Block Diagram The LCD monitor contains 4 parts: 1. interface board: Deal with VGA input signal and output the signal to panel. 2. Power/inverter board: Provide power to interface board and panel 3. Keypad board: For user to control the LCD monitor. 4.
MAIN BOARD DIAGRAM Interface Board Red Green A/D To & Blue LCD module Scaling & Vsync Hsync OSD MCU SDA DDC 13 EEPROM SCL
Software Flow Chart ACER 17” flow chart item description: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. (1) MCU initialize. Is the EEProm blank? Program the EEProm by default values. Get the user value and mode setting from EEProm. Are the factory key pressed? Enter factory mode. Check the analog port, are there any signal coming? Display “No Signal” message. Enter sleep mode. Wake up the scalar. Program the scalar to be able to show the coming mode. Turn on the LED and set it to green color.
MONITOR INTERFACE BOARD PCB LAYOUT 15
Symbol: Component: CN103 LVDS connector CN101 Connector to power BD U102 5V to 1.8V regulator X102 Crystal to scaler U104 Scaler “TSU16AK” U105 MCU “Winbond” CN102 D-sub connector U103 DDC U106 EEPROM X101 Crystal to MCU CN105 Connector to control BD U101 5V to 3.
FRONT BEZEL 5 4 3 2 DESCRIPTION ITEM 1 2 3 4 5 1 Power Tack Switch Menu/Enter > (Up) < (Down) Auto/Exit 17
REAR BEZEL 1 ITEM 1 2 2 DESCRIPTION Three-pronged power cord VGA Cable with blue connector compliance with PC99 18
Chapter 2 OPERATION INSTRUCTIONS Press the power button to turn the monitor on or off. The other control buttons are located on the front 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 cable from the monitor to the VGA Card. Press the power button to turn on the monitor, the power indicator will light up.
No Symbol 1 Power key/LED 2 Menu/Enter 3 > 4 < 5 Auto/Exit Function Press this button to turn the monitor on or off LED Green – Power On mode LED Orange – Off mode 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. 1. Activates the volume control when the OSD is OFF. 2. Navigate through adjustments icons when OSD is ON. 3. Adjust a function when function is activated. 1.
ADJUSTING THE MONITOR 1.) Main OSD Menu a. Outline b. Description for OSD Main Menu Icon Sub Menu Item Sub Menu Icon Description Adjustment Reset Value Range Contrast Contrast from digital register 0-100 50 Brightness Backlight Adjustment 0-100 100 Phase Adjust picture phase to reduce 0-100 Do auto config 0-100 Do Auto Config 0-100 Do Auto Config horizontal line noise Clock Adjust picture clock to reduce vertical line noise H.
V. Position Warm N/A Adjust picture vertical position 0-100 Do Auto Config Recall warm color temp. from N/A N/A N/A N/A 0-100 The value which we get after EEPROM Cool N/A Recall cool color temp.
Exit N/A Exit OSD N/A 23 N/A
2) OSD MESSAGE a. Outline b. OSD Message Description Item No Signal Description When LCD Monitor power on, but video cable is not connected, will show this message, then enter power saving. 3) FACTORY MENU a. How to call out “Factory Menu” At VGA in, Push “AUTO” & “MENU”, and plug AC Power cord in sync.. b.
HOW TO OPTIMIZE THE DOS-MODE PLUG AND PLAY Plug & Play DDC1/2B Feature This monitor is equipped with VESA DDC1/2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system its identity and, depending on the level of DDC used, communicate additional information about its display capabilities. The communication channel is defined in two levels, DDC1 and DDC2B.
Chapter 3 MACHINE ASSEMBLY This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and troubleshooting. NOTE: 1. The screws for the different components vary in size. During the disassembly process, collect the screws with the corresponding components to avoid mismatch when putting back the components. 2. The monitor surface is susceptible to scratching! Therefore, lay the monitor on a soft surface when mounting or removing the base. 3.
Chassis*1 PCBA Control Board *1 SCREW (PW 3*4,M,ZN) *2 Insert B/L jack*4 PCBA Power Board *1 INSULATOR PC,MYLAR SCREW (PW 3*6,M,ZN) *3 INL Panel*1 EMI shield Tape*2 SCREW (PW3x4,M,ZN)*4 PCBA I/F BOARD *1 CABLE 30P FFC HRN ASS’Y 8P SCREW (PW 3*6,M,ZN) *3 FFC(30pin)*1 TAPE,ACE#LP1701(40x20mm)*1 INSULATOR PC#LE1710 27
Panel Module *1 Back cover*1 Arm Stand*1 (M4x10,ZN)*4 Bracket Finger*1 (M4x18,ZN)*3 Stand plate*1 Rubber*4 28
Hinge Cover Front Bezel *1 Button *1 Indicator *1 29
TROUBLESHOOTING Chapter 4 1. Common Acknowledge If you change the M/B, Please re-do “DDC” programmed &”Auto Color balance” If Replace “Power & Inverter board” only, please re-do “Auto color balance”. If you adjust clock and phase, please do it at condition of Windows shut down pattern. If you confirm the R.G.B. color is normal or not, please do it under 16-grey scalar pattern. This LCM is analog interface.
No power &LED off YES Check primary rectifier voltage NO NO Check circuit if short YES Check F801, F802, P801, D801 YES Check pin3 of IC802 voltage about 1V NO Check R801, R805, R822, R823, R817 YES Check pin2 of IC802 voltage about 2V NO Check R803, R807, R824, R825 YES Check pin1 of IC802 voltage is 5.8V NO Check R812, R816, C818 YES END 2.
Output Voltage Unstable NG Check Vbe of 801 below 0.
2.3 Output power is unstable Unstable power NO Check sampling Circuit NO Check R810, R811,R818 Change R810, R811, R818 YES NO Check the R pin voltage of IC803 about 2.5V NO Check the C pin voltage of IC803 if 3V Change IC803 YES Check R809, R808, R814, D809 YES NO Check pin1 of IC802 voltage is 5.8V Check D806, C815 if short Change D806, C815 YES NO Check pin3 of IC802 voltage about 1V Change R801, R805, R822, R823, R817 YES END 2.
No raster YES LED Green? YES Backlight can not be turned on F501 open NO YES Is there 12Vdc voltage on pin13 of IC501? NO Check power supply Is Ok fuse F501? YES Is there high-level voltage on pin8 of IC501 YES NO Is R526 Ok? YES Check I/F board R526 open NO Check CN501, CN502, CN503 and CN504? NO Connecting the output connector again YES Is there pulse waveform on pin1, pin3, pin15 and pin16 of IC501 at the moment of restart? NO YES Is Ok IC501? U501, U502 fail NO YES IC501 fail N
3.Interface Board Troubleshooting 3.
3.
3.3 Bad Screen Bad Screen OK LVDS Cable Reinsert Workmanship NG OK Change LVDS Cable LVDS Cable NG NG Check Crystal: pin20,21 of U105 and pin33,34 of U104 NG (1).CheckX101,C154, C155 (2).CheckX102,C126, C168 NG Check ALE/RDZ/ WRZ/AD0/AD1/ AD2/AD3/ HWRESET OK Check the communication of U104 andU105 OK Check the pins of U104 and U105 3.4 If brightness uniform, change Inverter or Panel. 3.5 If you find the vertical line on the screen, please change panel.
Exploded Diagram 38
Process To Access Factory Mode Power Off Press “AUTO＂& ＂MENU＂buttons at the same time Power On Release the “AUTO＂& ＂MENU＂ buttons Press “MENU＂ Button Press “<＂ Button Press “Menu＂ Button Enter the factory Mode 39
Chapter 5 ONNECTOR INFORMATION VGA Connector (D-Sub 15pin) Pin Assignments Pin Symbol Pin Symbol Pin Symbol 1 Red 6 Red_GND 11 N.C. 2 Green 7 Green_GND 3 Blue 8 Blue_GND 13 HSYNC 4 N.C. 9 PC+5V 14 VSYNC 5 GND 10 N.C.
Chapter 6 FRU (Field Replaceable Unit) LIST This chapter gives you the FRU (Field Replaceable Unit) listing in global configuration of AL1513. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE: Please not WHEN ORDER FRU PARTS, that you should check the most up-to-date information available on your regional web or channel (http://aicsl.acer.com.tw/spl/).
BOLT,#4-40x11.8,NiFOR D-SUB/DVI BOLT,#4-40x11.8,NiFOR D-SUB/DVI screw CONN. CONN. screw SCREW,P,CROSS,M4*10,Zn,NL(NYLOK) SCREW,P,CROSS,M4*10,Zn,NL(NYLOK) screw SCREW,P,CROSS,M4*18,Zn SCREW,P,CROSS,M4*18,Zn screw SCREW,P,CROSS W/WAS,M3*4,Zn SCREW,P,CROSS W/WAS,M3*4,Zn screw SCREW,P,CROSS W/WAS,M3*6,Zn SCREW,P,CROSS W/WAS,M3*6,Zn FOIL,AL.,DOUBLE COND.,45x35x0.04mm, FOIL,AL.,DOUBLE COND.,45x35x0.
Chapter 7 SHEMATIC DIAGRAM Keypad Diagram Interface Board Schematic 43
POW/INV Board Schematic 50
