Acer AL1732 AL1732 Service Guide
Acer AL1732 Manual
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- Acer AL1732 | AL1732 Service Guide - Page 1
Acer AL1732 Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ 100% Recycled Paper - 1 - - Acer AL1732 | AL1732 Service Guide - Page 2
, 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 no representations or warranties, either expresses or implied, with respect to the contents hereof and specifically - Acer AL1732 | AL1732 Service Guide - Page 3
current topic. Warning Alerts you to any damage that might result from doing or not doing specific actions. Caution Gives precautionary measures to avoid possible hardware or software problems. Important Reminds you to do specific actions relevant to the accomplishment of procedures. - 3 - - Acer AL1732 | AL1732 Service Guide - Page 4
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 BASICCONFIGURATION decided for Acer's "global" product offering. To better fit local market requirements - Acer AL1732 | AL1732 Service Guide - Page 5
used in accordance with the instructions, may cause harmful interference void the user's authority to operate the equipment. 2. Shielded interface cables and AC power cord, monitor to rain or moisture. Dangerously high voltages are present inside the monitor. Do not open the cabinet. Refer servicing - Acer AL1732 | AL1732 Service Guide - Page 6
a radiator or heat register. Do not place the monitor in a bookcase or cabinet unless proper ventilation is provided. The monitor should be operated only from the type of power source indicated on the label. If you are not sure of the type of power supplied to your home, consult your dealer or local - Acer AL1732 | AL1732 Service Guide - Page 7
SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off the Power Switch and then turn it on again to make sure the flicker disappears. You - Acer AL1732 | AL1732 Service Guide - Page 8
Table of contents Chapter 1 MONITOR FEATURE 9 Chapter 2 OPERATING INSTRUTION 15 Chapter 3 Machine assembly 21 Chapter 4 TROBLE SHOOTING 27 Chapter 5 CONNECTOR INFORMATION 29 Chapter 6 FRU LIST 30 Chapter 7 SCHEMATIC DIAGRAM 31 - 8 - - Acer AL1732 | AL1732 Service Guide - Page 9
Monitor Feature Chapter 1 LCD Panel Input Display Color Maximum Dot Clock ® Max Resolution Plug & Play EPA ENERGY STAY Audio output Input Connector Input Video Signal Screen Size (Active) Power Source Environmental Considerations Weight (N.W.) Dimension Driving system Size Pixel pitch Viewable - Acer AL1732 | AL1732 Service Guide - Page 10
Switch * Power Switch * MENU/ENTER * / Volume * / Volume * Auto Adjust KEY Function External Controls : ISO13406-2 Timeings The product has 21 memory modes in total. 12 modes are preset and 9 modes are user definable. Timing 1 2 3 4 5 6 7 8 9 10 11 12 Standard DOS VESA VESA VESA - Acer AL1732 | AL1732 Service Guide - Page 11
Hor.A [us] 0.318 0.636* 0.508 0.508 0.616 0.667 1.000 1.120 0.323 0.369 0.320 0.203 Hor.B [us] 3.813 3.813 1.270 2.032 3.813 2.000 3.200 2.400 1.616 2.092 1.813 1.219 Hor.C [us] 1.907 1.907* 3.810 3.810 1.907 3.556 2.200 1.280 3.232 2.462 1.920 2.235 Hor.D [us] 25.422 25.422 20.317 20.317 25.442 22. - Acer AL1732 | AL1732 Service Guide - Page 12
Monitor Block Diagram - 12 - - Acer AL1732 | AL1732 Service Guide - Page 13
PCB CONDUCTOR VIEW Main Board - 13 - - Acer AL1732 | AL1732 Service Guide - Page 14
Button Board - 14 - - Acer AL1732 | AL1732 Service Guide - Page 15
OPERATING INSTRUCTIONS Chapter 2 Front Panel Definition This Section defines the front panel User Interface for Led Indictor and Key function. Key Definition: There are five keys defined in this system and described bellows. * Adjusting display settings External Controls Power on/off ○1 POWER - Acer AL1732 | AL1732 Service Guide - Page 16
relative to each other to achieve a comfortable contrast. Color temp. : There are three ways of adjusting color: Warm (Reddish white) Cool (Bluish white) User : You can adjust the colors red, green and blue to the intensity you desire. Focus: This removes any horizontal distortion and makes the - Acer AL1732 | AL1732 Service Guide - Page 17
color (blue/amber) led to indict system status and defined as bellows : LED Color Blue System Status System in normal operation mode Amber System in power-saving mode Dark System in - Acer AL1732 | AL1732 Service Guide - Page 18
, following a time-out period, will automatically switch to an OFF mode. This reduces the monitor's internal power supply consumption. After the video input signal is restored, full power is restored and the display is automatically redrawn. The appearance is similar to a "Screen Saver" feature - Acer AL1732 | AL1732 Service Guide - Page 19
the wallet plug with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volt AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No. 18 AWG, type SJT or SVT three - Acer AL1732 | AL1732 Service Guide - Page 20
Chapter 3 Machine assembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and trouble shooting NOTE : 1. The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding to avoid mismatch when - Acer AL1732 | AL1732 Service Guide - Page 21
Real View : Top View : - 21 - - Acer AL1732 | AL1732 Service Guide - Page 22
process Picture Description 1. Get the inverter board and inverter cable 2. Insert inverter cable to inverter board. 3. Assembly inverter board and shielding cover 1. Insert keyboard cable on the main board 2. Insert button cable on the main board. 3. Insert LCD cable on the main board. - 22 - Acer AL1732 | AL1732 Service Guide - Page 23
with cable 2. Fix the main board and inverter board on the shielding cover 1. Get the panel and put it on the table carefully. 1. Fix left and right bracket (BKT) on the panel. 1. Get - Acer AL1732 | AL1732 Service Guide - Page 24
shielding metal of PCB and insert LCD cable into the panel connector. 2. Stick tape on the LCD cable and panel connector as picture. 1. Assemble PCB shielding on the BKT. 2. Lock screw * 4 pcs to fix PCB shielding and BKT. 1. Insert up side of CCFT cable into Inverter Board. 2. Insert down side of - Acer AL1732 | AL1732 Service Guide - Page 25
1. Assembly speaker on the bezel. 2. Stick tape to fix speaker. 3. Tidy speaker cable as pictures 4. Insert speaker cable into speaker connector. 1. Tidy button board cable and stick it as picture. 2. Stick 2 pcs of AL foil on the CCFL of PCB shielding metal. 1. Assembly button board and back cover. - Acer AL1732 | AL1732 Service Guide - Page 26
1. Assembly back cover and bezel 2. Lock screw * 6 pcs to fasten and back cover 1. Lock screw*2 pcs to fasten bezel and PCB shielding. 2. Assembly DVI box, if necessary. 1. Assembly stand base and back cover. 2. lock screw *6 pcs to fix it. 1. Assembly VESA cover and back cover. - 26 - - Acer AL1732 | AL1732 Service Guide - Page 27
SHOOTING This chapter provides trouble shooting information forAL1732 1. No Power No Power Check Adaptor Power Output =12V OK Check Scalar Module Output L4 =5V? C19 = 3.3V ? L 10 = 1.8V ? OK Check Power Button From Scalar/B(CN8) B /B(CN1) NO Change Adaptor NO Change Scalar Module Board NO - Acer AL1732 | AL1732 Service Guide - Page 28
2. No Characters , Missing one color No Change Inverter Board Check Inverter From Scaler board OK ? No Check or Change Cable Or Panel No Change VGA Cable No Characters Missing one color Check CN1 12Vdc Output OK - Acer AL1732 | AL1732 Service Guide - Page 29
3.No Audio No Audio Check Input source Or Change CN5 Change U5 or U9 No Check Input Signal CN5 OK ? OK No Check CN6 to Speaker OK ? Change Speaker or CN6(Cable) OK No Check U5(Pin6)Volume & U9 OK ? OK Check U5Pin1(Mute) & Q9 & U9 OK ? No Change U5 or Q9 or U9 - 29 - - Acer AL1732 | AL1732 Service Guide - Page 30
Connector Information Phonejack stereo PIN1. AC power cord : CEE22 typed connector PIN2. Audio cable PIN3. Audio : Line-in receptacle J1 1 2 3 PHONEJACK STEREO Video signal connector 15P Mini D-Sub connector x 1 CN6 10 5 9 4 8 3 7 2 6 1 DB15HD - Acer AL1732 | AL1732 Service Guide - Page 31
Proprietary connecting of DVI box The 44 pin of proprietary DVI box is defined as follows: 1 RX22 RX2+ 3 RX1- 4 RX1+ 5 RX06 RX0+ 7 RXC8 RXC+ 9 GND 10 GND 11 Y0 12 Y1 13 Y2 14 Y3 15 Y4 16 Y5 17 Y6 18 Y7 19 LLC VPC 20 KEY1 21 GND 22 KEY2 23 SCART_FUNC 24 KEY3 25 SCART RGB_CON 26 SCL5V 27 nYCOEN 28 - Acer AL1732 | AL1732 Service Guide - Page 32
the FRU (Field Replaceable Unit) listing in global configurations of AL1732. Refer to this chapter whenever ordering for parts to repair or of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts repair and service of customer machines. - Acer AL1732 | AL1732 Service Guide - Page 33
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SCHEMATIC DIAGRAM Main Board Circuit Chapter 7 - 34 - - Acer AL1732 | AL1732 Service Guide - Page 35
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Inverter Circuit 1. LG panel - 40- - Acer AL1732 | AL1732 Service Guide - Page 41
2. AU panel - 41 -