Acer AL2671W AL2671W Service Guide
Acer AL2671W Manual
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- Acer AL2671W | AL2671W Service Guide - Page 1
System Specifications Features This LCD TV was designed with the user in mind. Here are just a few of its many features: Benefits T T T T T T T T T Max. resolution: 1280x768 14 CCFLs Backlight system Display area: 26 inches ( 660.5 mm ) diagonal Display color: 16.7 M colors Input Signal: 1-ch - Acer AL2671W | AL2671W Service Guide - Page 2
40 ° ( R:20 ° , L:20 ° ) T VESA mounting holesOne type II CardBus PC Card slot Multi-Sound System T MICAM T FM Stereo (A2) Power Source T Input voltage: 90 ~ 264 V, 47 ~ 63 Hz T Input current: 1.5 A T Power consumption: 150 Watts T Stand-by: 5 Watts Max. Remote Controllers T MICAM T FM Stereo (A2 - Acer AL2671W | AL2671W Service Guide - Page 3
System Block Diagram System Block and Wiring Diagram INVERTER PANEL connector 12pin connector 4pin panel-20pin connector 10pin POWER/B connector 8pin MAIN/B connector 7pin connector 62pin IO/B Tuner SCART RGB SCART YUV connector 4pin connector 12pin AUDIO/B AV 3 connector 5pin IR - Acer AL2671W | AL2671W Service Guide - Page 4
LCD Main Board Block Diagram Audio Board Block Diagram 4 Chapter 1 - Acer AL2671W | AL2671W Service Guide - Page 5
Board Layout Board Layout is not ready as the service guide released. Chapter 1 5 - Acer AL2671W | AL2671W Service Guide - Page 6
introduction to Acer LCD TV ports, functions and indicators. Front panle view # Item Description 1 LCD screen 2 directioal arrow. 7 Menu Turn OSD menu ON/OFF 8 Power Power ON/OFF 9 Remote Control Window Infrared Sensor (Do not block) 6 Chapter - Acer AL2671W | AL2671W Service Guide - Page 7
Rear panel view HOYLHZ # Item Description 1 RF Connector (TV Connects to the antenna or cable service Tuner) Input 2 IAV1/SCART 1 In Select source. AV1/SCART Out! When OSD is on: Press this button to confirm selection. 3 AV2/SCART 2 In Volumn Down. - Acer AL2671W | AL2671W Service Guide - Page 8
power ON/OFF 1b AC In Connects to a power source 2a DVI-D In Connects to PC DVI Out 2b D-Sub In Connects to PC VGA Out 2c Audio In In PC mode or video game AV3/Audio Out (R/L) In TV mode, connect the audio (R/L) input of your VCR or PVR to record TV programs (Please set AV3 to "Out" in - Acer AL2671W | AL2671W Service Guide - Page 9
mute the sound; press again to restore. Press to select TV mode. Press to select AV3 mode. Press to select SCART1/SCART2 mode Press one for VGA mode, press twice for DVI. Press to set a time period after which the TV shoud switch itself to standby. Press repeatedly to select the number of minutes. 9 - Acer AL2671W | AL2671W Service Guide - Page 10
the OSD menu / press OK to confirm. Press to select the sound system, displayed at the top right-hand corner. Press these buttons to increase and decrease the volume. Press these buttons to select the TV channel in sequence. Acer Empowering key (for Favorite Channels and Scenario Mode" on page - Acer AL2671W | AL2671W Service Guide - Page 11
Basic connection Connecting the power cord 1. Connect the AC cord into the AC input on the back of the set. 2. Connect the male plug to the wall outlet as shown. Connecting an antenna Connect the outdoor antenna cable lead-in to the antenna terminal on the back of the TV set as shown. Connecting - Acer AL2671W | AL2671W Service Guide - Page 12
- Acer AL2671W | AL2671W Service Guide - Page 13
FDPHUDFDPFRGHUYLGHRJDPHV Connecting a headphone Connect headphone to the headphone input on the bottom of the TV set as shown below. Chapter 1 13 - Acer AL2671W | AL2671W Service Guide - Page 14
Getting started watching your TV Power On a. Turn on AC power switch on bottom of TV. b. Press the power button on remote control. D E Changing channels 1. Press 0-9 on the remote control to select a channel. The channel changes after 2 seconds. Press ENTER to select the channel immediately. - Acer AL2671W | AL2671W Service Guide - Page 15
Scanning the channels The first time you use your TV, use the following method: Menu -> Settings -> Channel settings -> Scan -> "Yes". The TV will auto-detect available channels and store them in memory. NOTE: The first time you access the OSD, a language setting subwindow will pop up, and - Acer AL2671W | AL2671W Service Guide - Page 16
using the front panel controls. Navigating the OSD with Remote Control There are five main OSD menus. These are: Picture , Audio , Settings , Options and Empowering . Use the following method to easily navigate these menus. 1. Press the "Menu" button on the remote control or the "Menu" button on the - Acer AL2671W | AL2671W Service Guide - Page 17
information via the teletext feature. This Acer LCD TV has 252 pages of memory which will store pages and subpages, thereby reducing waiting time. The teletext buttons on the remote control are listed below. Item INDEX SUBTITLE TELETEXT REVEAL SIZE MIX HOLD Color buttons (R/G/Y/B) Description - Acer AL2671W | AL2671W Service Guide - Page 18
in the image above. Press "Active" key to switch between main display pictures, and press TV/SCART/AV/PC or channel selection to change the content of the Mode" key to display the 1+ 12 picture on picture mode as shown in the image above. Press "Activate" key to toggle focus on subscreen and press TV - Acer AL2671W | AL2671W Service Guide - Page 19
the content of the subscreen. Parental Control When in TV mode, you can find a Parental Control feature in the Options menu. Enter a four digit PIN number using the number keys on your remote control. Use this number to adjust the Parental Control settings, to prevent access to certain channels - Acer AL2671W | AL2671W Service Guide - Page 20
Mode to select pre-defined audio and video settings for optimal enjoyment of the following scenarios: Standard, Movie, Sport, Concert, Game, User. Favorite Channels One the remote control , pressing the "e" Empowering key for less than 1 second will tobble TV programs - Acer AL2671W | AL2671W Service Guide - Page 21
Save " within 5 seconds after meet condition of power saving mode. This LCD TV shall go into power saving state in 5 seconds later of showing " Go Into Power Save ". The LED shall indicate orange color during power saving mode. The AV1 input supports both of S-video and CVBS video inputs. If both - Acer AL2671W | AL2671W Service Guide - Page 22
video inputs are connected with cables, the S-video input take priority but signal quality has problems because you connect CVBS with S-video at the same time. The AV3 could be set either input or TV output from TV OSD menu. While it is set to be output, AV3 would carry CVBS signal and stereo - Acer AL2671W | AL2671W Service Guide - Page 23
main board for further processing. 22 Teletext_Vs ( 3, from Vertical Sync. Signal issued by LCDTV main board for use of Teletext mainboard 26 GND_2_of_(3) Power ground 27 SCART_mode_det_1 SCART mode detection ( RGB or CVBS ) 28 RESET_I_O_Module LCDTV main board uses this pin to reset - Acer AL2671W | AL2671W Service Guide - Page 24
Power pins which supply +5V to digital receiver. 52 5V_max_1.5A_b ( 2 ) Power pins which supply +5V to digital receiver. 53 USDA SDA signal issued by LCDTV main board ) LCD Item Vendor & model name LCD display area (diagonal, inch) Display technology QDI 26 (660.5mm) TFT Specification 24 - Acer AL2671W | AL2671W Service Guide - Page 25
LCD Item Resolution Active Area [mm] Pixel Pitch [mm] Pixel Arrangement Display mode Surface treatment Weight [grams] Physical Size [mm] Display Color Input signal Back-light White Luminance [cd/m2] Contrast Ratio Response time(ms) Optical Rise Time/Fall Time [msec] Viewing Angle Power Consumption [ - Acer AL2671W | AL2671W Service Guide - Page 26
26 Chapter 1 - Acer AL2671W | AL2671W Service Guide - Page 27
Disassembly and Replacement This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting. To disassemble the computer, you need the following tools: T Wrist grounding strap and conductive mat for preventing electrostatic discharge - Acer AL2671W | AL2671W Service Guide - Page 28
General Information Before You Begin Before proceeding with the disassembly procedure, make sure that you do the following: 1. Turn off the power to the system and all peripherals. 2. Unplug the AC adapter and all power and signal cables from the system. 3. Remove the battery pack. 42 Chapter 3 - Acer AL2671W | AL2671W Service Guide - Page 29
the succeeding page gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the system board, you must first remove the keyboard, then disassemble the inside assembly frame - Acer AL2671W | AL2671W Service Guide - Page 30
44 Chapter 3 - Acer AL2671W | AL2671W Service Guide - Page 31
holding the TV stand module. 2. Detach the TV stand module. 3. Detach the TV stand module. 4. Separate the base and the swivel assembly. Removing the Tuner Box Module 1. Remove the two screws that secure the tunder box module. 2. Then detach the tunder box module from the LCD TV carefully. 3. Remove - Acer AL2671W | AL2671W Service Guide - Page 32
the wall mount assembly. 7. Detach the wall mount assembly. Removing the Power Board 1. Disconnect the cables (audio to power board; on the right/main board to power board; on the left). 2. Remove the three screws that fasten the power board. 3. Remove another three screws holding power board. 46 - Acer AL2671W | AL2671W Service Guide - Page 33
the cable clip as shown. 5. Disconnect all cables connected to the main board. 6. Remove the four screws holding the main board heatsink. 7. Then detach the main board heatsink carefully. 8. Remove one screw that secures the I/O bracket. 9. Detach the main board from the LCD TV. Chapter 3 47 - Acer AL2671W | AL2671W Service Guide - Page 34
holding the I/O bracket. 11. Then detach the I/O bracket from the LCD TV. Removing the Speakers 1. Tear off the tape that fastens the left speaker holding the left speaker. 4. Then remove the left speaker from the LCD TV. 5. Tear off the tape that fastens the right speaker cable. 6. Disconnect the right - Acer AL2671W | AL2671W Service Guide - Page 35
the right speaker from the LCD TV. Removing the AV3 Board and the Button Board 1. Remove the four screws holding the ground wire and the AV3 board. 2. Turn over the AV3 board as shown. 3. Disconnect the cables connected to the AV3 board then remove the AV3 board. 4. Remove the two screws holding - Acer AL2671W | AL2671W Service Guide - Page 36
the LCD right bracket. 4. Remove the LCD right bracket. 5. Remove the three screws holding the inverter shielding. 6. Detach the inverter shielding carefully. 7. Remove the eight screws that secure the PCB tray. 8. Detach the PCB tray as shown. 9. Then disconnect the cable (main board to LCD). 50 - Acer AL2671W | AL2671W Service Guide - Page 37
as shown. 12. Remove the five screws holding the inverter board. 13. Then detach the inverter board. 14. Remove the two screws that secure the LCD left bracket. 15. Detach the LCD left bracket. 16. Remove the four screws that secure the LCD lower chassis. 17. Remove the four screws that secure the - Acer AL2671W | AL2671W Service Guide - Page 38
22. Detach the LCD lower chassis. 23. Detach the LCD button kit as shown. (LCD button) 24. Take the LCD button kit out off the front cover. 25. Take the LCD button kit out off the front cover. Note: LCD button kit has three small parts. 52 Chapter 3 - Acer AL2671W | AL2671W Service Guide - Page 39
Chapter 4 Troubleshooting Use the following procedure as a guide for Acer LCD TV AL2671W problems. NOTE: The diagnostic tests are intended to test this model. Non-Acer products, prototype cards, or modified options can give false errors and invalid system responses. 1. Duplicate symptom and obtain - Acer AL2671W | AL2671W Service Guide - Page 40
11 N.G PPowowererCCorodrd Replacement N.G Power Cable Replacement N.G Power Board Replacement N.G Main Bard Replacement N.G Audio Board Replacement END 58 Chapter 4 - Acer AL2671W | AL2671W Service Guide - Page 41
22 LCD No Back Light LCD No Display CCFT Cable N.G Replacement N.G LCD Cable N.G Inverter Board Replacement N.G LCD Panel Replacement N.G Main Board N.G LCD Panel Main Board N.G Replacement END END Chapter 4 59 - Acer AL2671W | AL2671W Service Guide - Page 42
33 N.G Button Board Replacement N.G I/O Board Replacement N.G Main Board Replacement END 4 N.G Main Board Replacement END 60 Chapter 4 - Acer AL2671W | AL2671W Service Guide - Page 43
55 IR Cable N.G Replacement IR board N.G Replacement N.G Main Board Replacement END 6 IO Board N.G Replacement N.G Main Board Replacement END Chapter 4 61 - Acer AL2671W | AL2671W Service Guide - Page 44
77 N.G Button Cable Replacement N.G Button Board Replacement N.G Main Board Replacement END 8 N.G Power Board Replacement N.G Main Board Replacement END 62 Chapter 4 - Acer AL2671W | AL2671W Service Guide - Page 45
99 N.G AAVV33CCabalbele Replacement N.G AV3 Board Replacement N.G Audio Board Replacement N.G Main Bard Replacement END Chapter 4 63 - Acer AL2671W | AL2671W Service Guide - Page 46
1010 N.G AAuuddioioCCabablele Replacement Speaker N.G Replacement N.G Audio Board Replacement N.G Main Board Replacement IO Board N.G Replacement END 64 Chapter 4 - Acer AL2671W | AL2671W Service Guide - Page 47
1111 N.G BBuutttotonnCCabablele Replacement N.G Button Board Replacement IO Board N.G Replacement N.G Main Bard Replacement END Chapter 4 65 - Acer AL2671W | AL2671W Service Guide - Page 48
66 Chapter 4 - Acer AL2671W | AL2671W Service Guide - Page 49
noted on the Service Guide. For ACER AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of - Acer AL2671W | AL2671W Service Guide - Page 50
Exploded Diagram Acer 84 Chapter 6 - Acer AL2671W | AL2671W Service Guide - Page 51
NS NS Partname (Description) REMOTE CONTROLLER Part Number 25.M01V7.001 TUNER MODULE - PAL (VA1 TELTEXT BOARD ASSY) 6M.M01V7.002 1 MAIN BOARD (VT3 M/B ASSY(FOR VA1)(EU)) 55.M01V7.001 15 POWER BOARD (ADP/PWR 157W,DPS-157CP 55.M01V7.002 A(90~264VAC)) 3 AUDIO BOARD (VV3 AUDIO/B ASSY - Acer AL2671W | AL2671W Service Guide - Page 52
Picture NS 23 Partname (Description) POWER CODE EU 3P 1.8M CABLE - SPEAKER R ( RED_BLACK COLOR) Part Number 27.M01V7.003 50.M01V7.001 22 CABLE - SPEAKER L ( WHITE_BLACK COLOR) 50.M01V7.002 20 CABLE - ADUIO TO POWER BOARD 8P/7P 50.M01V7.003 21 CABLE - MB TO POWER BOARD 10P 50.M01V7.004 19 - Acer AL2671W | AL2671W Service Guide - Page 53
Picture 24 Partname (Description) CABLE - MB TO LCD 18 CABLE - MB TO AV3 6P/4P Part Number 50.M01V7.007 50.M01V7.009 25 CABLE - MB TO BUTTON BOARD (13P/10P) 16 CABLE - IB TO GROUND 50.M01V7.009 50.M01V7.011 11 FUNCTION BUTTON 42.M01V7.002 9 STAND SWIVEL ASSY (Please note that the - Acer AL2671W | AL2671W Service Guide - Page 54
43 Partname (Description) I/O SHIELDING Part Number 33.M01V7.001 8 MB_POWER BOARD SHIELDING 33.M01V7.002 38 INVERTER SHIELDNG 37 PCB TRAY 33.M01V7.003 33.M01V7.004 45 INVERTER INSULATOR 35 LCD CHASSIS - UPPER 36 LCD CHASSIS - DOWN 42 LCD BRACKET - L 41 LCD BRACKET - R 88 47 - Acer AL2671W | AL2671W Service Guide - Page 55
Picture 47 48 NS 7 Partname (Description) GASKET(SHORT) - LCD GASKET(LONG) - LCD MAIN BOARD HEATSINK WALL MOUNT ASSY Part Number 47.M01V7.002 47.M01V7.003 34.M01V7.003 60.M01V7.005 13 LCD TFT 26 IN. QDI QD26WL01 56.M01V7.001 49 PANEL CONTACT PAD 47.M01V7.004 NS PE BAG FOR PANEL 47.M01V7. - Acer AL2671W | AL2671W Service Guide - Page 56
Picture NS Partname (Description) SCREW T3*12 P (NI) Part Number 86.M01V7.012 90 Chapter 6 - Acer AL2671W | AL2671W Service Guide - Page 57
Chapter 6 91