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Acer ET.L1307.150 manual

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Table of contents for the manual

  • Page 1

    Acer AL1715 Service Guide Service guide files and updates are available on the CSD web; for more information, please refer to http://csd.acer.com.tw[...]

  • Page 2

    1 Copyright Copyright © 2003 by Acer Incorpo rated. All rights rese rved. No part of this publi cation may be reproduced, transmitted, transcribed, stored in a retri eval system, or translated into any language or compu ter language, in any form or by any means, electronic, m echanical, m agnetic, optical, chemical, manual or otherwise, without th[...]

  • Page 3

    2 Conventions The following conventions are u sed in this manual SCREEN MESSAGES Denotes actual me ssages that appear on screen. NOTE Gives bits and pieces of additional information related to the current topic. WARNING Alerts you to any damage that might result from doing or not doing specific actions. CAUTION Gives precautionary measures to avoid[...]

  • Page 4

    3 Preface Before using this information and the produ ct it supp orts, please read the following gene ral information. 1. This Service Guide provides you with all techni cal information relating to the BASIC CONFIGURATION decided for Acer's "global" prod uct offering. To bette r fit local market requirements and enhance p roduct comp[...]

  • Page 5

    4 W ARNING: (FOR FCC CERTIFIED MODELS) NOTE: This equipment has been tested and foun d to comply with the limits for a Class B digit al device, pursuant to Part 15 of the FCC Rules. These limit s are desi gned to prov ide reasonable protection against harmful interference in a residential inst allation. This equipme nt generates, uses and can radia[...]

  • Page 6

    5 PRECAUTIONS z Do not use the monitor near water , e.g. near a batht ub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. z Do not place the monitor on an unst able 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 st and recommended by t[...]

  • Page 7

    6 SPECIAL NOTES ON LCD MONIT ORS The following symptoms are norm al with LCD monitor and do not indicate a probl em. NOTES • Due to the nature of the fluorescent light, the screen ma y flicker during initial use. T urn of f the Power Switch and then turn it on again to make sure the flicker disappears. • Y ou may find slightly uneven brightness[...]

  • Page 8

    7 Chapter 1 M onitor Feat ures ----------------------------------------------------------------- 6 Monitor Features ------------ ----------------- ------------------ ----------------- ----------- 8 Factory Preset Timing Tabl e ----------------- ------------------------------ ------------10 Block Diagram ---------------- ----------------- ----------[...]

  • Page 9

    8 Monitor Features SAMSUNG Driving system TFT Col or LCD Size 43.2cm(17.0") Pixel pitch 0.264mm(H) x 0.264mm(V) Brightness 300cd/m 2 (T ypical) Contrast 500:1(T ypical) Viewabl e angle 150 ° (H) 135 ° (V) LCD Panel Response ti me 12ms R, G , B Analog Interface Video Digital (Dual-I nput Model) H-Frequency 30KHz – 80KHz Input V -Frequency 5[...]

  • Page 10

    9 External Controls Switch • Auto Adjust Key • </ V olume down (o ption) • >/ V olume up (option ) • Power Button • MENU/ Exit External Controls Functions • Contrast • Brightness • Focus • Clock • H.Position • V .Position • Language • Input signal Selection • Auto configuration (Analog model only) • (W arm) Color[...]

  • Page 11

    10 Factory Preset T iming T able[...]

  • Page 12

    11 Monitor Block Diagram The LCD MONITOR con tains a main board, an inverter /p ower board, keyp ad board and audio board which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel. The Power will provide the 12V DC-pow er to inverter board and main board. Monitor Block Diagram K[...]

  • Page 13

    12 U601 W inbon d RXD/TXD KEY Control A T24C16 EPR SDA/SCL Panel P A 0~9 PB 0~9 VLCD U401 TSU16AK VAA3 VCC2.5V VCC3.3V VAA1 VAA4 VAA2 A T24C02 (DDC) U301 DDC SCL/SDA VGA In p u t VGA R/G/B VGA Hs / Vs MAIN BOARD DIAGRAM[...]

  • Page 14

    13 Software Flow Chart (1) (2) (3) (4) (5) (7) (6) (8) (10) (1 1) (12) (9) Y N Y N[...]

  • Page 15

    14 1. Initialize MCU settings, including I/O, Timer, ISR and Serial Port settings. 2. Read EEPROM content to recover monitor se ttings, including brightness, contrast, color temperature and OSD position….etc. 3. Initialize system variable, including system flag, OS D timeout c ounter, burin mode status… etc. 4. Initialize OSD menu variable for [...]

  • Page 16

    15 Monitor Board Layout Item Description X401 CRYST AL 14.318MHzHC-49U X601 20MHz U201 RT91 64A18PG S0T - 223 U202 AIC1084-33CM U301 M24C02-WMN6T SMT U401 TSU16AK pqfp-12 8 U601 W7 8E65P-40 CN201 HEADER 2*6P CN301 D-SUB 15PIN CN302 3 PIN CN503 PIN HEADER 24P 2.0mm CN601 PIN EADER CN602 W AFER 16PIN 2.0mm DIP RN601 CHIP AR 8P4R 10KOHM +-5 RN602 CHIP[...]

  • Page 17

    16 Inverter Board Layout Item Description PT201 1.5MM RIVET PT202 1.5MM RIVET IC901 SG6841D BY SYSTEM IC902 PC123 Y82 IC903 HTL431 CN102 HEADER 2*6P CN201 W AFER CN202 W AFER CN203 CONN.2P R/A 87210-0236 DIP CN204 W AFER CN301 PHONE JACK(Only for SPK) CN302 3 PIN BD901 BRIDGE 2KBP06M NR901 8 OHM NCTR C905 100UF +-20% 400V T901 X'FMR Q21 1 2SC5[...]

  • Page 18

    17 Front Bezel Item Description 1 Auto Adjust Key / Exit 2 >/ Volume up (option) 3 </ Volume down (option) 4 MENU/ENTER 5 LED 6 POWER[...]

  • Page 19

    18 Back Bezel Item Description 1 AC POWER CORD 2 Signal Cable 3 Audio Cable （ Only for speake r ） 4 DVI Cable (Only Dual-Input Mode)[...]

  • Page 20

    19 O p e r a t i n g I n s t r u c t i o n s Press the power button to turn the monitor on or of f. The other co ntrol buttons are located at front p anel of the monitor . By changing these settings, the picture can be adju sted to your personal preferen ces. • The power co rd should be conne cted. • Connect the video cable from the monit or to[...]

  • Page 21

    20 • > / V olume up: Activates the volume control when the OSD is OFF or navigate throug h adjustment icons when OSD is ON or adjust a function when function is activated. • Auto Adjust button / Exit: 1. When OSD menu is in active stat us, this button will a ct as EXIT -K EY (Exit OSD menu). 2. When OSD menu is in of f st atus, press this bu[...]

  • Page 22

    21 OSD Menu[...]

  • Page 23

    22 How to adjust a setting: 1. Press the MENU-button to activa te the OSD window . See figure 4. 2. Press <or >to select the desired function. See figure 4. 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. T o exit and save, select the exit functio[...]

  • Page 24

    23 Main Menu Icon Sub Menu Icon Sub Menu Item Description (Only Analog-Input Model) N/A Auto Config Auto Adjust the H/V Positi on, Focus and Clock of picture. (Only Dual-Input Mode) N/A Analog Select input signal from analog (D-Sub) N/A Digital Select input signal from digit al (DVI) N/A Information Show the resolution, H/V frequency and input port[...]

  • Page 25

    24 OSD Message The description for OSD Message: Item Description Auto Config Please W ait 1.) When Analog signal input, if User Press Ho t-Key “Auto”, will show this messa ge, and the monitor do the auto config function. 2.) When Digital sign al input, without this OSD Message. Input Not Supported When the Hsync Frequency , Vsync Frequency or R[...]

  • Page 26

    25 Machine Disassembly This chapter contains step-by -step procedures on ho w to assemble the monitor for maintenance an d troubleshooting. NOTE: 1. The screws for the different compon ents vary in size. During the disassem bly process, grou p the screws with the corresponding compo nents to avoid mismatch wh en putting back the compo nents. 2 . No[...]

  • Page 27

    26 Picture Description T o put inverter board, and connect relat ed interfaces T o fix the board with screws T o fix the wires with adhesive t ape Connect Inverter board with Audio board T o fix Audio board with screws T o connect main board wit h Audio board T o connect all other interfaces[...]

  • Page 28

    27 T o fix the main board with screws After having fix the board, cover the shield on them STRENGTH: In the end, cover the back bezel and co nnect above part with the chassis W arning: 1.In order to prevent the static disturbance, wear resi sting static ring 2. No watch[...]

  • Page 29

    28 Trouble shooting This chapter provides troubleshoo ting information for the AL1715: Defect Mode Failure Analysis Repair Testing Completed NG Next Abnormal Display Missing Line Bright Dot Dark Dot Light Leakage Mura Image S ticking Dot Defect Brightness Spot Dot Defect Particle Check Panel Panel Chan ge No display Check Power Board Check Main boa[...]

  • Page 30

    29 Defect Mode Failure Analysis Repair Testing A Te s t Next Completed A Noise Check Single Cabl e Change Single Ca ble Flicker Check Main board Change Main board Check Panel Change Panel Abnormal Gray Check Main board Change Main board Check Panel Change Panel Check L VD Cable Change L VD Cable RGB Display Abnormal Check Single Cabl e Change Sin[...]

  • Page 31

    30 Defect Mode Failure Analysis Repair Testing Change Keyb oard or Mainboard Change Keyb oard or Mainboard or wire Change Keyb o ard Change Main board Change Main board Change L VDS W ire LED Off Change Keyb oard or Mainboard or wire Change Keyb oard or Mainboard or wire A Change W ires LED Abnormal LED Dark LED Display Abnormal LED Flicker Abnorma[...]

  • Page 32

    31 Connector Information The following figure shows the conn ector loc ations on the monitor board: Chapter 5[...]

  • Page 33

    32 FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Repla ceable Un it) listing in global configurations of Acer Altos AL1721.Refer to this chapt er whenever ordering for parts to repair or for RMA (Return Merchandi se Authorization). Please note that WHENORDERING FRU PA RTS, you should check the most up-to-date information a[...]

  • Page 34

    33 Note: above picture show the description of the following component No. Picture Description 1 Front Bezel 2 Main Frame 3 Back cover 4 Panel[...]

  • Page 35

    34 5 Shield No. Picture Description 6 Hinge cover 7 S tand base 8 Foot sticker 9 Inverter board 10 Mylar[...]

  • Page 36

    35 11 Function board 12 S peaker (option) No. Picture Description 13 Main board 14 Audio Board (option) 15 Signal cable 16 Audio cable (option) 17 Power code 18 Inverter board cable 19 L VDS cable[...]

  • Page 37

    36 20 S ponge 21 Mainframe screws No. Picture Description 22 Rear panel scre ws 23 Ground rush 24 Hinge cover screws 25 Function board screws 26 Main shield screws 27 D-sub screws[...]

  • Page 38

    37 S c h e m a t i c D i a g r a m INPUT U302 AT24C02N-10SC NC 1 2 3 4 5 6 7 8 A0 A1 A2 GND SDA SCL WP VCC VSI C313 0.1uF C315 0.1uF NC R301 100 1/16W 　 C312 220pF ST_DET2 6 R319 100 1/16W NC 　 R312 100 1/16W 　 R310 150 1/16W 　 D301 BAV99 3 1 2 R324 10K 1/16W NC 　 R304 470 1/16W 　 CLK_DDC2 D313 NC VCC5V D310 NC D306 NC R323 10K 1/16W NC[...]

  • Page 39

    38 SCALER TSU16AK VAA3 2 VCC5V VCC2.5 C406 0.1uF VCC3.3 G- 3 CSZ 6 PA9 R401 + C419 10uF/16V VPO VAA1 2 VDPLL C410 0.1uF VCC2.5 2 NC VAA2 2 FB401 600 OHM PB1 VDVI PB5 C428 0.1uF PB[0..9] 5 R+ 3 VAA3 C401 0.1uF Volume 6 NC VDD PA4 DEL VDVI B+ 3 PB2 FB404 600 OHM U401 TSU16AK 63 60 61 58 62 59 57 37 38 40 41 43 44 46 47 49 50 52 66 67 69 70 71 32 72 7[...]

  • Page 40

    39 PANEL INTERFACE LVB1M PA5 LVB3P PA8 PA7 C510 0.1uF LVB0P RXO1- LVA2M LVB3M LVA0P LVA3P LVA1M PB7 RXO0+ RXO3- LVB1M LVB1P LVACKP RXO1+ RXEC+ CN503 CON24A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 LVB2M LVB0M LVB0P LVB0M LVB3P PB[0..9] PA0 RXO2- PB9 RXO3+ PA2 LVA3P PA4 PA[0..9] PA3 LVACKP LVBCKP VLCD 2 LVA2P + C509 22uF/16V LV[...]

  • Page 41

    40 MCU C612 0.1uF/16V R627 10K 1/16W 　 CSZ 4 R605 10K R639 NC R613 10K onBACKLITE 2 TXD 3 AD0 4 VCC12V LEFT OUT-L+ C611 1uF/16V Volume 4 R604 10K AUTO Q602 PMBS3906 C B E R603 10K DVI-DSUB SELECT LED_BLUE R601 10K HWRESET 4 R628 470 Q603 PMBS3906 C B E U601 8051-PLCC 35 21 20 10 14 15 16 17 2 3 4 5 6 7 8 9 43 42 41 40 39 38 37 36 24 25 26 27 28 2[...]

  • Page 42

    41 Online Support Information This section describes online techn ical support services available to help yo u repair your Acer S ystems. If you are a distributor, dealer, ASP or TPM, please refe r your technical queries to your local Acer branc h office. Acer Branch Offices and Re gional Business Units may acce ss our website. However some sources[...]