Chapter 1 1FeaturesThis LCD TV was designed with the user in mind. Here are just a few of its many features:BenefitsT Max. resolution: 1280x768T 14 CCFLs Backlight systemT Display area: 26 inches ( 660.5 mm ) diagonalT Display color: 16.7 M colorsT Input Signal: 1-ch LVDST Contrast ratio: 600:1 ( Typical )T Brightness: 450 cd/m2 ( Typical )T Response Time: 16 msT Viewing angle: 85 ( L ) / 85 ( R ), 85 ( U ) / 85 ( D )DisplayLCD PanelT Max. resolution: 1280x768T 14 CCFLs Backlight systemT Display area: 26 inches ( 660.5 mm ) diagonalT Display color: 16.7 M colorsT Input Signal: 1-ch LVDST Contrast ratio: 600:1 ( Typical )T Brightness: 450 cd/m2 ( Typical )T Response Time: 16 msT Viewing angle: 85 ( L ) / 85 ( R ), 85 ( U ) / 85 ( D )DisplayI/O FunctionsT Connector Type:(1) 21 pin Euro-SCART ( RGB ) for Video, S-Video, R.G.B. and Audio(2) 21 pin Euro-SCART ( YUV/RGB ) for Video, S-Video, YPbPr, YCbCr and Audio(3) RCA jack for Video and Audio 3(4) 15 pin D-Sub(5) 24 pin DVD/HDCPT TV input: DIN45325 ( IEC169-2 ) TerminalT Audio input : Earphone jackT Audio output : Earphone jackVideo FunctionsT Support PAL / NTSC / SECAM video formatT Support 480i/576i, 480p/576p, 1080i and 720p format System SpecificationsChapter 12 Chapter 1T Build in Teletext functionsT Build in Dynamic adaptive smoothing filterT Build in Dynamic temporal frame-filtering Noise ReductionT Build in Dynamic motion and edge adaptive De-interlacingT Film mode 3:2 & 2:2 pull downT Screen display model 16:9 / 4:3 / panorama / letterBox/zoom1/zoom2 / PIP / PBP/POPMechanicalT Swivel: 40 ( R:20 , L:20 )T VESA mounting holesOne type II CardBus PC Card slotMulti-Sound SystemT MICAMT FM Stereo (A2)Power SourceT Input voltage: 90 ~ 264 V, 47 ~ 63 HzT Input current: 1.5 AT Power consumption: 150 WattsT Stand-by: 5 Watts Max.Remote ControllersT MICAMT FM Stereo (A2)SpeakerT Internal speaker: 5 W * 2 stereo, volume adjustableOthersT On screen display adjustment functionT ISP ( In System Programming ) function available for revising driver easiInternal speaker: 5 W * 2 stereo, volume adjustable Chapter 1 3System Block DiagramSystem Block and Wiring Diagram SCART RGBIO/B connector 8pin panel-20pin connector 2pin connector 10pin connector 3pin SPEAKER-L PANELconnector 62pin INVERTERTuner connector 12pinPOWER/B SCART YUVKEY/B MAIN/B connector 12pin AUDIO/BSPEAKER-R IR Receverconnector 4pinconnector 8pin AV 3connector 7pin connector 4pin connector 5pin 4 Chapter 1LCD Main Board Block DiagramAudio Board Block DiagramChapter 1 5Board LayoutBoard Layout is not ready as the service guide released.6 Chapter 1Outlook ViewA general introduction to Acer LCD TV ports, functions and indicators.Front panle view# Item Description1 LCD screen2 Input Select source.When OSD is on: Press this button to confirm selection.3 Vol Down Volumn Down. When OSD is on: Also functions the sam eas Left directional arrow.4 Vol Up Volume Up.When OSD is on: Also functions the same as Right directional arrow.5 Channel Down Channel Down.When OSD is on: Also functins the sam as Down directional arrow.6 Channel Up Channel Up. When OSD is on: Also functions the same as Up directioal arrow.7 Menu Turn OSD menu ON/OFF8 Power Power ON/OFF9 Remote Control WindowInfrared Sensor (Do not block)INPU1 - VOLUML + - CHANNLL + MLNU POWLR1 2 3 4 5 6 7 8 9Chapter 1 7Rear panel view# Item Description1 RF Connector (TV Tuner) InputConnects to the antenna or cable service2 IAV1/SCART 1 InAV1/SCART Out!Select source.When OSD is on: Press this button to confirm selection.3 AV2/SCART 2 InAV2/SCART 2 OutVolumn Down. When OSD is on: Also functions the sam eas Left directional arrow.HOYLHZ

8 Chapter 1Bottom view# Item Description1a AC Switch Turns AC in power ON/OFF1b AC In Connects to a power source2a DVI-D In Connects to PC DVI Out2b D-Sub In Connects to PC VGA Out2c Audio In In PC mode, connect to audio output of your PC or other devices with DVI or VGA connector2d Audio Out Connects to another speaker3a/b AV3/Audio In (R/L)AV3/Audio Out (R/L)Connect to the audio output (R/L) of your camera, camcorder or video gameIn TV mode, connect the audio (R/L) input of your VCR or PVR to record TV programs (Please set AV3 to Out in OSD).3c AV3/Video InAV3/Video OutConnect the composite output of your camera, camcorder or video game.In TV mode, connect the composite input of your VCR or PVR to record TV programs (Please set AV3 to Out in OSD).4 Headphone Connect headphone1a 1b 2a 3a 3b 3c 4 2b 2c 2dChapter 1 9Remote control Item DescriptionPower button Press to turn TV on/off.DISPLAY Displays channel number and input source on the upper right-hand corner of the screen.MUTE Press once to mute the sound; press again to restore.TV Press to select TV mode.AV Press to select AV3 mode.SCART Press to select SCART1/SCART2 modePC Press one for VGA mode, press twice for DVI.SLEEP Press to set a time period after which the TV shoud switch itself to standby. Press repeatedly to select the number of minutes.DISPLAY MU1L1VRLCALL

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3RZHU'LUHFWLRQDOSDG9ROXPH3,33%3323NH\V6RXUFHV1XPEHUNH\V&KDQQHO7HOHWH[WNH\V10 Chapter 1ZOOM Press repeatedly to switch image betweenNormal Zoon 1 (1/.85:1) Zoon 2 (2.35:1)SRS Press to select WOW, TruBass, 3D Stereo, Off modes sequentially. SRS is a technology to enhance 3D sound, bass performance and to produce a wider sound field.WIDE Scaling mode (4:3 / 16:9 / Panorama / Letterbox)Numberkeys Number keys from 0-9RECALL Press to return to the previous channel.ENTER Press to return to the previous channel.MENU Open Menu or leave Menu.4-way scroll key/OK Navigate up, down, left and right in the OSD menu / press OK to confirm.MPX Press to select the sound system, displayed at the top right-hand corner.VOL (up/down) Press these buttons to increase and decrease the volume.CH (up/down) Press these buttons to select the TV channel in sequence.e Acer Empowering key (for Favorite Channels and Scenario Mode on page 19.PIP/PBP/POP Switch between Normal/PIP/PBP/POP modes. See Advanced Features on page 18.SWAP Swap primary and sub screen in toggle.ACTIVE Toggle the active screen.POSITION Change position of subscreen in PIP mode.SIZE/MODE When in PIP mode: Change subscree size 25%, 37.5%, 50%When in POP mode; Change POP mode 1+5 / 1+12

Chapter 1 11Basic connectionConnecting the power cord1. 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 antennaConnect the outdoor antenna cable lead-in to the antenna terminal on the back of the TV set as shown.Connecting VCR/DVD/AV equipment with a SCART-SCART cableConnect SCART-SCART cable as shown below.12 Chapter 1Connecting VCR/DVD/AV equipment with a SCART-component/AV cableConnect SCART-component/AV cable to SCART2 port as shown below.Connecting a camera, camcorder or video gameConnect your camera or camcorder to the Video/Audio ports on the bottom of the TV set shown below.

DVDAVorororY C R 8 W RAudio VideoCompohehI (YPbPr/YCbCr) !or SCAR1 2 ohlyChapter 1 13Connecting a headphoneConnect headphone to the headphone input on the bottom of the TV set as shown below.INPU1 - VOLUML + - CHANNLL + MLNU POWLRY Y W W R RVideoVideoAudioAudioL RL RFDPHUDFDPFRGHUYLGHRJDPHVINPU1 - VOLUML + - CHANNLL + MLNU POWLR14 Chapter 1Getting started watching your TVPower Ona. Turn on AC power switch on bottom of TV.b. Press the power button on remote control.Changing channels1. Press 0-9 on the remote control to select a channel. The channel changes after 2 seconds. Press ENTER to select the channel immediately.2. You can also change the channels by pressing and holding the Channel Up/Down button on the remote control. Up will increase the number, while down will decrease the number.Adjusting the volumeAdjust the volume using the VOL +/- button on the remote control. Up will increase the volume, while down will decrease the volume.NOTE: You can also adjust these settings using the front control panel. Please see Front panel view on page 8 for details.E

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Chapter 1 15Scanning the channelsThe 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 you will be asked to choose your language settings.16 Chapter 1OSD NavigationMany of the advanced settings and adjustments are available through using the OSD (on screen display) menus, as shown in the example screenshot below.Basic operations required ot navigate these menus (Picture, Audio, Settings, Options, Empowering) are described in this section. The first time you access the OSD, you will be asked to choose your language settings.NOTE: You can also interact with these menus using the front panel controls. Navigating the OSD with Remote ControlThere 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 control panel.2. Select your desired menu by using the Left/Right sides of the directional pad ot switch between the five menus.3. Use the directional pad to interact with the menu. The Up/Down directions will scroll through the menu options, while Left/Right will adjust the different settings (for example, in the Picture menu, settings such as brightness, contrast, etc). If there are no adjustments, press Enter to select.

Chapter 1 17TeletextMost TV channels also broadcast 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 DescriptionINDEX Go to index pageSUBTITLE Show subtitle on the screenTELETEXT Press to switch from TV/AV to Teletext mode.REVEAL Press to reveal hidden teletext information.SIZE Press once to zoom teletext page to 2X; press again to resume.MIX Press to overlay teletext page on the TV image, i.e. subtitleHOLD Press to pause the current teletext page in multi-page viewing mode.Color buttons (R/G/Y/B) Operates corresponding button on the teletext page.18 Chapter 1Advanced FeaturesPIP/PBP/POPPIP (Picture in Picture)1. Press PIP/PBP/POP key once to display picture in picture as shown 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 subscree.2. Press swap key to change the content between the primary and the subscreen.3. When in PIP mode, press Position key to select the location of the subscreen, from Upper Left > Upper Right> Lower Right> Lower Left, as shown in the image above.PBP (PIcture by Picture)Press PIP/PBP/POP key twic to display picture as shown in the image above. Press Activate to toggle the screen in focus and press TV/SCART/AV/PC or channel selection to change the content of the sub screen.POP (Picture on Picture)1. Press Size/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/SCART/AV/PC or channel selection to change the content of the subscreen.

Chapter 1 191. Press Size/Mode key to display the 1 +5 picture on picture mode as shown in the image above.2. Press Activate key to toggle focus on subscreen and press TV/SCART/AV/PC or channel selection to change the content of the subscreen.Parental ControlWhen 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.If you forget your PIN number, please enter 6163 to rest. Empowering Key: Scenario Mode and Favorite ChannelsUse the OSD to define your e Empowering key setting: Scenario mode and Favorite channel. The default value for the e key is the Scenario mode. Use the following method: Menu -> Empowering -> e key Setting.

20 Chapter 1Choose between Favorite channel or Scenario Mode. Now, when you press the e key, your chosen selection will be accessed.Scenario ModePress the e Empowering key and use the Scenario Mode to select pre-defined audio and video settings for optimal enjoyment of the following scenarios: Standard, Movie, Sport, Concert, Game, User.Favorite ChannelsOne the remote control, pressing the e Empowering key for less than 1 second will tobble TV programs sequentially according to your favorite list. There are five slots in which you can store TV programs. Press e Empowering key for more than 2 seconds.T When current program is not stored in favorite list, pressing the e key for more than 2 seconds stores the TV program information at the bottom of the favorite list. If there is no empty slot in the favorite list, the first program will be wiped out and the new TV program is added at the bottom of the favorite list. Simply pu, its First in, first out. T When the current program is stored in the favorite list, pressing e key for more than 2 seconds will remove the program from the favorite list.T To view currently stored favorite channels, press the e Empowering key.Chapter 1 21Display Electrical and Functional SpecificatonsThis LCD TV shall have the ability to operate under following range with stable blue color of LEDindicated. Any signal outside of the limits ( any combination ) shall not cause any damage to the unit ordriving source. The range of operation is:T CVBS and Y/C:T PAL ( 4.43 M , 50 Hz ) B?G?D?K?H?I, PAL ( 4.43 M , 60 Hz )T SECAM D?KT NTSC ( 3.58 M ), NTSC ( 4.43 M ), Japan ( 50 Hz )T TV Systems:T PAL and SECAM system ReceivableT Full frequency range From channel E2 ( 48.25 MHz ) to channel E69 ( 855.25 MHz )T YUV inputs:T YcbCr ( 480i )T YPbPr ( 480p?1080i?720p )T VGA and DVI-D inputs:T Horizontal input frequency range: 30k Hz to 70k HzT Vertical input frequency range: 56 Hz to 85 HzT Max. Resolution: 1280 x 768T Down Scaling support: 1152 x 870 75 Hz 1280 x 960 60 / 85 Hz 1280 x 1024 60 / 75 / 85 HzThe LED shall indicate blue color and OSD will show " Out of Range " message within 5 seconds after signal is out of range or down scaling support from selected input.This LCD TV shall catch signal sources from TV?AV1?RGB?AV2?YUV?AV3?VGA and DVI-D automatically during power up, which it is unnecessary to select inputs from OSD or hot keys. The priority to catch signal sources shall be 1st) User selected source from hot key or OSD, 2nd) Last source used, 3rd) TV input ( last power down channel), 4th) AV1 RGB input, 5th) AV1 S input, 6th) AV1 CVBS input, 7th) AV2 RGB input, 8th) AV2 S input, 9th) AV2 CVBS input, 10th) AV2 YUV, 11th)AV3 input ( Set to be input from OSD ), 11th) VGA input, 12th) DVI-D input. The LCD TV shall complete selection and show media on screen within 5seconds ( including Auto Adjust ).The OSD will show " No Signal " within 3 seconds while there is missing signal from selected input.The OSD will show " No VGA Connection " within 5 seconds while VGA input is selected but has no connection on VGA port.The OSD will show " Go Into Power 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 of the S-video and CVBS video inputs are connected with cables, the S-video input takes priority.22 Chapter 1The AV2 input support both of S-video and CVBS video inputs. If both of the S-video and CVBS 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 audio out from TV tuner.Chapter 1 23Hardware Specifications and ConfigurationsPin Definition Between Main Board and I/O BoardItem Specification1 Teletext_RGB_B ( 6 ) Blue signal comes from Teletext decoder IC.2 Teletext_RGB_B ( 6 ) Green signal comes from Teletext decoder IC.3 Teletext_RGB_B ( 6 ) Red signal comes from Teletext decoder IC.4 Teletext_fast_blanking Fast blanking signal for the use of Teletext decoder IC on I/O module.5 Teletext_start Main board issues it for the use of Teletext decoder IC on the I/O module.6 SCART_aspect_ratio_1 Aspect ratio indicator signal comes from pin-16 of ordinary SCART connector.7 DAC_RST (1)Main board used this pin to reset I2C DAC on current I/O module.8 TX_232 TX signal of UART9 SVHS_2_C (3) Chrominance signal of SVHS-210 SVHS_1_Return (3) Return path paired with Y and C of SVHS-1.11 SVHS_1_Y (3) Y of SVHS signal set 1.12 CVBS_1_ CVBS-113 GND_1_of_(3) Power ground14 Audio_Center_GNd_gnd (2)Ground path paired with audio Center15 Earphone_for_subpicture_L (2)Audio Left channel paired with sub-picture.16 Audio_Center_Gnd_gnd (2)Audio woofer signal. After decoding Dolby digital or other surround audio,digital receiver sends this woofer signal to LCDTV main board for furtherprocessing.17 Audio_Rear_L_R_Gnd_of_R (3)'Right' signal of audio rear channels.18 YUV_1_Pr ( 6 ) 'Pr' of YUV signal set 1.19 YUV_1_Pb ( 6 ) 'Pb' of YUV signal set 1.20 YUV_1_Y ( 6 ) 'Y' of YUV signal set 1.21 Audio_Front_L-R_Gnd_of_R (3)'Right' channel of surround audio.After decoding Dolby digital or other surround audio, digital receiver sendsthis signal to LCDTV main board for further processing.22 Teletext_Vs ( 3, from mainboard )Vertical Sync. Signal issued by LCDTV main board for use of Teletextdecoder IC on the I/O module.23 Teletext_RGB_B_Return (6)'Blue' signal return for Teletext decoder IC.24 Teletext_RGB_G_Return (6)Return path paired with 'Green' signal comes from Teletext decoder IC.25 Teletext_RGB_R_Return (6)Return path of 'Red' signal comes from Teletext decoder IC.26 GND_2_of_(3) Power ground27 SCART_mode_det_1 SCART mode detection ( RGB or CVBS )28 RESET_I_O_Module LCDTV main board uses this pin to reset all components inside the I/Omodule.29 RX_232 'RX' signal of UART30 SVHS_2_Return ( 3 ) Return path paired with Y and C of SVHS-231 SVHS_2_Y ( 3 ) 'Y' of SVHS signal set 2.32 SVHS_1_C ( 3 ) 'Chrominance' signal of SVHS-1.33 CVBS_1_Return ( 2 ) Return path for CVBS-134 CVBS_1_Signal (1) CVBS-224 Chapter 135 Audio_Center_Gnd_signal (2)'Center' signal of surround audio channels.After decoding Dolby digital or other surround audio, digital receiver sendsthis signal to LCDTV main board for further processing.36 Earphone_for_subpicture_R ( 2 )Audio ' Right ' channel paired with sub-picture.37 Audio_Woofer_Gnd_gnd ( 2 )Ground signal paired with audio ' Woofer ' channel.38 Audio_Rear_L_R_Gnd_of_gnd ( 3 )Ground signal of rear left and right audio channels.After decoding Dolby digital or other surround audio, digital receiver sendsthis signal to LCDTV main board for further processing.39 YUV_1_Pr_Return ( 6 ) Return path of ' Pr ' signal. It belongs to YUV signal set -1.40 YUV_1_Pb_Return ( 6 ) Return path of ' Pb ' signal. It belongs to YUV signal set -1.41 YUV_1_Y_Return ( 6 ) Return path of ' Y ' signal. It belongs to YUV signal set -1.42 Audio_Front_L_R_Gnd_of_Gnd'Ground' path paired with audio front "Left" and "Right"43 Teletext_Hs ( 3, from mainboard )Horizontal Sync signal. LCDTV main board issues it for the use of Teletextdecoder IC on the I/O module.44 Teletext_Hs_Vs_return ( 3 )Common return path of horizontal and vertical sync signals which are issued by LCDTV main board45 TV_Out Video output for signal set AV3_OUT46 TV_R Audio 'Right' channel of signal set AV3_OUT47 TV_L Audio 'Left' channel of signal set AV3_OUT48 Audio_Mute Disable all the analog audio signals from I/O modules49 12V_max_1A_a ( 2 ) Power pins which supply +12V to digital receiver.50 12V_max_1A_b ( 2 ) Power pins which supply +12V to digital receiver.51 5V_max_1.5A_a ( 2 ) 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 to access ICs andmodules of analog option54 USCL SCL signal issued by LCDTV main board to access ICs andmodules of analog option55 ID_1 Identification signal -156 ID_2 Identification signal -257 GND_3_of_(3) Power ground58 Audio_Rear_L_R_Gnd_of_L ( 3 )Audio 'Left channel paired with sub-picture.59 YUV_2_Pr ( 3 ) 'Pr' signal of YUV-2 signal set.60 YUV_2_Pb ( 3 ) 'Pb' signal of YUV-2 signal set.61 YUV_2_Y ( 3 ) 'Y ' signal of YUV-2 signal set.62 Audio_Front_L_R_Gnd_of_L ( 3 )'Left' signal of audio rear channels.LCDItem SpecificationVendor & model name QDILCD display area (diagonal, inch) 26 (660.5mm)Display technology TFTPin Definition Between Main Board and I/O BoardItem SpecificationChapter 1 25IMPORTANT:For more detailed product specifications, please refer to Acer AL2671 product specifications. You can double click Acrobat Document icon below to read the document. The document is provided by our vendor, please keep it as internal use only. Resolution WXGA (1280 horizontal X768 vertical pixel array)Active Area [mm] 595.4 x 366.4 x 38Pixel Pitch [mm] 0.4425 x 0.4425Pixel Arrangement R,G,B Vertical StripeDisplay mode Normally whiteSurface treatment Antiglare, Hard-coating (3H)Weight [grams] 3500 Max.Physical Size [mm] 261.0(W) x 198.0(H) x 5.0(D) Typ.Display Color 16.7M colorsInput signal 1-ch LVDSBack-light 14 CCFLSWhite Luminance [cd/m2] 450Contrast Ratio 600Typ.Response time(ms) 25Optical Rise Time/Fall Time [msec] 20Typ., 5 MAX.Viewing Angle N/APower Consumption [Watt] 84Electrical Interface 4 pairs, single LVDSTemperature Range [degree C]OperatingStorage (Shipping)0 to +50-20 to +60LCDItem Specification26 Chapter 1Chapter 3 41This 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 dischargeT small Philips screwdriverT flat head screwdriverT Philips screwdriverT tweezersNOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatch when putting back the components. When you remove the stripe cover, please be careful not to scrape the cover.Chapter 3Machine Disassembly and Replacement42 Chapter 3General InformationBefore You BeginBefore 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.Chapter 3 43Disassembly Procedure FlowchartThe flowchart on 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 in that order. 44 Chapter 3Chapter 3 45Removing the TV Stand Module1. Remove the four screws 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 Module1. Remove the two screws that secure the tunder box module.2. Then detach the tunder box module from the LCD TV carefully.3. Remove the three screws holding the tuner box cover.4. Remove the tuner box cover.46 Chapter 3Removing the Back Cover and Wall Mount Assembly1. Remove the ten screws that fasten the back cover.2. Remove the back cover.3. Remove the five screws holding the wall mount assembly.4. Remove another five screws that secure the wall mount assembly.5. Remove four screw nuts holding the wall mount assembly as shown.6. Then remove the last screw that secure the wall mount assembly.7. Detach the wall mount assembly.Removing the Power Board1. 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.Chapter 3 474. Disconnect the inverter cable.5. Remove the power board.Removing the Audio Board and the Main Board1. Disconnect all cables connected to the audio board.2. Remove the four screws fastening the audio board.3. Then remove the audio board.4. Take out the cables from 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.48 Chapter 310. Remove the two screws holding the I/O bracket.11. Then detach the I/O bracket from the LCD TV.Removing the Speakers1. Tear off the tape that fastens the left speaker cable.2. Disconnect the left speaker cable.3. Remove the four screws 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 speaker cable.Chapter 3 497. Remove the four screws holding the right speaker.8. Then remove the right speaker from the LCD TV.Removing the AV3 Board and the Button Board1. 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 the AV3 cable.5. Take off the AV3 cable.6. Remove the four screws that fasten the button board and the ground wire.7. Turn over the button and disconnect the cables connected to the button board.8. Take the cable out of the cable clip.50 Chapter 39. Remove one screw holding the cable then remove the cable.Removing the LCD Module1. Disconnect the inverter cable.2. Tear off the tape on the inverter shielding.3. Remove the two screws holding 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).Chapter 3 5110. Disconnect the inverter board cable one by one.11. Disconnect the inverter board cable on the another side 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 LCD upper chassis.18. Detach the LCD module from the LCD front cover. Note: The LCD module is heavy, please hold it with enough strength.19. Remove the four screws that secure the LCD upper chassis.20. Detach the LCD upper chassis.21. Remove the four screws holding the LCD lower chassis.52 Chapter 322. 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.Chapter 4 57Use 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 the failing symptoms in as much detail as possible.2. Distinguish symptom. Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating the same operation.3. Disassemble and assemble the unit without any power sources.4. If any problem occurs, you can perform visual inspection before you fellow this chapters instructions. You can check the following:power cords are properly connected and secured;there are no obvious shorts or opens;there are no obviously burned or heated components;all components appear normal.5. Use the following flow chart determine which part to be replaced.NOTE: N.G. in the below figures means No Good.StartStartDoes the unit Power onNo power onNoNo1LCD Fail2 4119 7 53Remote Control FailDDC / POP PIP FailRF No Signal / HDTV FailTV Channel FailUnit Hang Up SuddenlyAV1,AV2 Speaker No SoundAV3 Speaker No SoundButton Function Fail10 8 6YesYesTroubleshootingChapter 458 Chapter 411Power CordPower CordPower CablePower BoardMain BardAudio BoardENDReplacementReplacementReplacementReplacementReplacementN.GN.GN.GN.GN.G11Power CordPower CordPower CablePower BoardMain BardAudio BoardENDReplacementReplacementReplacementReplacementReplacementN.GN.GN.GN.GN.GChapter 4 5922LCD No Back Light LCD No DisplayCCFT CableInverter BoardLCD PanelMain BoardENDENDLCD PanelMain BoardLCD CableReplacementReplacementReplacementReplacementN.GN.GN.GN.GN.GN.GN.G22LCD No Back Light LCD No DisplayCCFT CableInverter BoardLCD PanelMain BoardENDENDLCD PanelMain BoardLCD CableReplacementReplacementReplacementReplacementN.GN.GN.GN.GN.GN.GN.G60 Chapter 433Button BoardI/O BoardMain BoardENDReplacementReplacementReplacementN.GN.GN.G33Button BoardI/O BoardMain BoardENDReplacementReplacementReplacementN.GN.GN.G4Main BoardENDReplacementN.G4Main BoardENDReplacementN.GChapter 4 6155IR CableIR boardMain BoardENDReplacementReplacementReplacementN.GN.GN.G55IR CableIR boardMain BoardENDReplacementReplacementReplacementN.GN.GN.G6IO BoardMain BoardENDReplacementReplacementN.GN.G6IO BoardMain BoardENDReplacementReplacementN.GN.G62 Chapter 477Button CableButton BoardMain BoardENDReplacementReplacementReplacementN.GN.GN.G77Button CableButton BoardMain BoardENDReplacementReplacementReplacementN.GN.GN.G8Power BoardMain BoardENDReplacementReplacementN.GN.G8Power BoardMain BoardENDReplacementReplacementN.GN.GChapter 4 6399AV3 CableAV3 CableAV3 BoardAudio BoardMain BardENDReplacementReplacementReplacementReplacementN.GN.GN.GN.G99AV3 CableAV3 CableAV3 BoardAudio BoardMain BardENDReplacementReplacementReplacementReplacementN.GN.GN.GN.G64 Chapter 41010Audio CableAudio CableSpeakerAudio BoardMain BoardIO BoardENDReplacementReplacementReplacementReplacementReplacementN.GN.GN.GN.GN.G1010Audio CableAudio CableSpeakerAudio BoardMain BoardIO BoardENDReplacementReplacementReplacementReplacementReplacementN.GN.GN.GN.GN.GChapter 4 651111Button CableButton CableButton BoardIO BoardMain BardENDReplacementReplacementReplacementReplacementN.GN.GN.GN.G1111Button CableButton CableButton BoardIO BoardMain BardENDReplacementReplacementReplacementReplacementN.GN.GN.GN.G66 Chapter 4Chapter 6 83This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL2671W. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). Please note that WHEN ORDERING FRU PARTS, you should check the most up-to-date information available on your regional web or channel. For whatever reasons a part number change is made, it will not be 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 customer machines.NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it.FRU (Field Replaceable Unit) ListChapter 684 Chapter 6Exploded DiagramAcerChapter 6 85Picture Partname (Description) Part NumberNS REMOTE CONTROLLER 25.M01V7.001NS TUNER MODULE - PAL (VA1 TELTEXT BOARD ASSY) 6M.M01V7.0021 MAIN BOARD (VT3 M/B ASSY(FOR VA1)(EU)) 55.M01V7.00115 POWER BOARD (ADP/PWR 157W,DPS-157CP A(90~264VAC))55.M01V7.0023 AUDIO BOARD (VV3 AUDIO/B ASSY(FOR VA1)WOW) 55.M01V7.00314 INVERTER BOARD (INV MODULE(TKI)VT2(24V,V=1000V))55.M01V7.0045 AV3 BOARD (VT3 EARPHONE/B ASSY) 55.M01V7.0054 BUTTON BOARD (VA1 BUTTON BOARD ASSY) 55.M01V7.005NS POWER CODE UK 3P 1.8M 27.M01V7.001NS POWER CODE ITALY 3P 1.8M 27.M01V7.00286 Chapter 6NS POWER CODE EU 3P 1.8M 27.M01V7.00323 CABLE - SPEAKER R ( RED_BLACK COLOR) 50.M01V7.00122 CABLE - SPEAKER L ( WHITE_BLACK COLOR) 50.M01V7.00220 CABLE - ADUIO TO POWER BOARD 8P/7P 50.M01V7.00321 CABLE - MB TO POWER BOARD 10P 50.M01V7.00419 INVERTER CABLE 3 CON (12P/4P/6P) 50.M01V7.00517 CABLE - MB TO ADUIO BOARD 11P 50.M01V7.006Picture Partname (Description) Part NumberChapter 6 8724 CABLE - MB TO LCD 50.M01V7.00718 CABLE - MB TO AV3 6P/4P 50.M01V7.00925 CABLE - MB TO BUTTON BOARD (13P/10P) 50.M01V7.00916 CABLE - IB TO GROUND 50.M01V7.01111 FUNCTION BUTTON 42.M01V7.0029 STAND SWIVEL ASSY (Please note that the image includes stand swivel assy and stand base assy)60.M01V7.00112 STAND BASE ASSY(Please note that the image includes stand swivel assy and stand base assy)60.M01V7.00230 TUNER BOX COVER 42.M01V7.001NS FRONT COVER 60.M01V7.00329 BACK COVER 60.M01V7.004Picture Partname (Description) Part Number88 Chapter 643 I/O SHIELDING 33.M01V7.0018 MB_POWER BOARD SHIELDING 33.M01V7.00238 INVERTER SHIELDNG 33.M01V7.00337 PCB TRAY 33.M01V7.00445 INVERTER INSULATOR 47.M01V7.00135 LCD CHASSIS - UPPER 33.M01V7.00536 LCD CHASSIS - DOWN 33.M01V7.00642 LCD BRACKET - L 33.M01V7.00741 LCD BRACKET - R 33.M01V7.008Picture Partname (Description) Part NumberChapter 6 8947 GASKET(SHORT) - LCD 47.M01V7.00248 GASKET(LONG) - LCD 47.M01V7.003NS MAIN BOARD HEATSINK 34.M01V7.0037 WALL MOUNT ASSY 60.M01V7.00513 LCD TFT 26 IN. QDI QD26WL01 56.M01V7.00149 PANEL CONTACT PAD 47.M01V7.004NS PE BAG FOR PANEL 47.M01V7.005NS CARTON FOR PANEL STANDARD PACKING (4 PCS) 47.M01V7.00727 SPEAKER - R 23.M01V7.00126 SPEAKER - L 23.M01V7.00251 SCREW M3*5-P-NI-+ 86.M01V7.00146 SCREW M4*6 P (NI) 86.M01V7.00240 SCREW M4*12 B (NI) (NYLOK) 86.M01V7.00344 SCREW M4*25 B (NI) 86.M01V7.00439 SCREW 3 X 20.4-B (NI) 86.M01V7.00634 SCREW T3*8 P (NI) 86.M01V7.00733 SCREW T4*12 B (NI) 86.M01V7.00828 SCREW 4-40 UNC P-NI 86.M01V7.009NS IO NUT 86.M01V7.01052 SCREW M3*16 P(NI) 86.M01V7.011Picture Partname (Description) Part Number90 Chapter 6NS SCREW T3*12 P (NI) 86.M01V7.012Picture Partname (Description) Part NumberChapter 6 91