AT2001 Service Guide PRINTED IN TAIWAN Service guide files and updates are available on the AIPG/CSD web; for more information, please refer to http://csd.acer.com.tw II Revision History Please refer to the table below for the updates made on AT2001 service guide. Date Chapter Updates III 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, in 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. Acer Incorporated makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose. Any Acer Incorporated software described in this manual is sold or licensed "as is". Should the programs prove defective following their purchase, the buyer (and not Acer Incorporated, its distributor, or its dealer) assumes the entire cost of all necessary servicing, repair, and any incidental or consequential damages resulting from any defect in the software. Acer is a registered trademark of Acer Corporation. Intel is a registered trademark of Intel Corporation. Other brand and product names are trademarks and/or registered trademarks of their respective holders. IV Conventions The following conventions are used in this manual: Screen messages Denotes actual messages 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 possible hardware or software problems. IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures. V 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). These LOCALIZED FEATURES will NOT be covered in this generic service guide. In such cases, please contact your regional offices or the responsible personnel/channel to provide you with further technical details. 2. Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel. If, for whatever reason, a part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide. You MUST use the list provided by your regional Acer office to order FRU parts for repair and service of customer machines. 1 Chapter 1 System Specifications....................................................1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 LCD Panel Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Display Electrical and Function Specifications . . . . . . . . . . . 10 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Mechanism Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Regulatory and Reliability Requirements. . . . . . . . . . . . . . . . 31 Chapter 2 Machine Disassembly and Reassembly.....................35 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Removing the Stand Assy . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Removing the IO Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Disassembly the Main Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Chapter 3 Troubleshooting.........................................................44 Chapter 4 FRU(Field Replaceable Unit) List.............................47 Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 FRU List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Chapter 1 1 Features The chapter describes the function and performance targets for the AT2001 LCD TV which can support PAL systems. LCD Panel � Max. resolution: 800X600 � Lamp Quantity:Direct 6 U-lamp � Display area: 20 inches diagonal � Display color: 16.7M(8 bits) colors � Input Signal: TTL � Contrast ratio: 500:1 (Typical) � Brightness: 450 cd/m2 (Typical) � Response TIme: 16ms � Viewing angle: 80o(L)/80o(R), 60o(U)/60o(D) I/O functions: � RCA jack for Audio, Video � 21 Pin Euro-SCART(R.G.B) � 15 pin D-Sub for VGA � S-Din for S-Video � TV input: PH jack(for PAL system) � Audio input: Stereo right and left on RCA jack � Audio output: Earphone jack Video Functions � Support PAL/NTSC/SECAM video format � Support 480i,480p format � Build in morion adaptive 2D Digital Comb filter � Build in Teletext functions Mechanical � Tilt: 0,+15 � VESA mounting holes SAP system � NICAM, FM Stereo(A2) Power Soutce: � Input Voltage: 90~264V, 47~63 Hz System Specifications Chapter 1 2 Chapter 1 � Input current: 1.5A � Max.Power output: 63 Watts � Stand-by: 5 Watts Max. Remote COntrollers � Multi-function remote controller Speaker � Internal speaker. 3W*2 stereo, volume adjustable. Others � On screen display adjustment function � ISP(In System Programming) function available for revising driver easily. 5 5 4 4 3 3 2 2 1 1 D D C C B B A A Decoder SAA7154 Scaler & uP WT8811S VGA CONNECTOR LCD Panel Sound Processor AN5891 Audio Amp TPA6011 L,R L,R LVDS Tx THC63LVDM83R Data BUS LVDS BUS Earphone Speakers Data BUS I2C I2C I2C C1H-A For PAL Main Board BLOCK Audio Selector 74HC4052 Page 2 Page 2 Page 4 Page 3 R.G.B._H&V_SYNC Page 6 Page 7 Page 8 Page 8 Buttons& IR/LED Receiver Board Page 9,10 POWER DC-DC 15V/15VDDM/12V/9VA_A/5V/5VA/5V_AUD/5V_7154 3VDDM/3.3V/3.3VA/2.5VDDM/1.8V/1.8VA I/O BOARD Connector DVD CONNECTOR Sound(L,R) Input PC Sound Input PC Sound(L,R) Page 2 Teletext Page 5 PAL(OPTION) Tuner HEAD_PHONE SCART Signal CVBS_TTx Teletext R,G,B H-Sync V-Sync I2C I2C=48H/49H I2C=82H I2C=0X60H DVD Sound(L,R) DVD Video DVD Board Page 2 NTSC(OPTION) Tuner Y,Cb,Cr S1 AV1 AV1 S1 MUTE TTL_BUS AV2/OPTION OPTION 10 PAGE DATA MB BLOCK C 1 10 Thursday, December 30, 2004 B Size Document Number Rev Date: Sheet of 5 5 4 4 3 3 2 2 1 1 D D C C B B A A C1H-A PAL I/O Board BLOCK Diagram TO M/B Page 2 Tuner FQ1216MK3 Page 3 AV RCA Connector S-Video Page 3 Page 3 SCART Connector Page 4 Sound Processor MSP 3415G Page 5 CVBS1 AF SCART IN(L,R) SCART OUT(L,R) Page 5 Audio Switch AV(L,R) TV(L,R) L,R Y C CVBS2 M/B BLOCK C 1 5 Thursday, December 30, 2004 B Size Document Number Rev Date: Sheet of Pin Definition Between Main Board and I/O Board LCD Panel Characteristics General Description This LCD TV adopts AU display modules which are color active matrix thin film transistor(TFT) liquid crystal display(LCD) that uses amorphous silicon TFT as a switching device. This model is composed of a TFT LCD panel, a driving circuit and a backlight system. This TFT LCD has a 20 inch diagonally measured active display area with SVGA resolution ( 600 vertical by 800 horizontal pixel array). ( Please refer to panel specification for detail and updated information ) General Information Item Specification Unit Outline Dimension 448(W) x 347 (H) mm Display area 20.1 inches Diagonal inch Number of pixel 800(H)x600(V) pixels Pixel pitch 0.51(H) X 0.51 (V) mm Pixel arrangement RGB Vertical stripe Display color 16.7 M colors (8 bits) Display mode T N-Type Normally white +SWV Film Surface treatment Anti-Glare type Weight Max.3500 g Lamp Quantity Direct 6 U-lamp Input signal TTL Panel Power consumption 5 W Optimum viewing direction 6 o’clock Optical Characteristics Optical characteristics are determined after the unit has been ‘ON’ and stable for arround 2Hrs in a dark environment at 25 °C. The values specified are at an approximate distance 50cm from the LCD surface at a viewing angle of F and q equal to 0 °. Parameter Symbol Conditi on Min. Typ. Max. Unit Remark Viewing L/R TOP CR>10 55 60 Deg. 【Note 3,6,8】 angle U BUTTON 55 60 Deg. LEFT 65 80 Deg. range D RIGHT 65 80 Deg Contrast ratio ＣＲn θ =0° 400 500 － 【Note3,4,6】 Response time τ － 16 ms 【Note 5】 Rise time τ r 5 ms Fall time τ d 11 ms Gray to gray 16 ms Chromaticity of Wx 0.243 0.273 0.303 White (CIE 1931) Wy 0.262 0.292 0.322 Chromaticity of Rx 0.612 0.642 0.672 Red (CIE 1931) Ry 0.307 0.337 0.367 Chromaticity of Gx 0.254 0.284 0.314 Green (CIE 1931) Gy 0.585 0.615 0.645 Chromaticity of Bx 0.111 0.141 0.171 Blue (CIE 1931) By 0.038 0.068 0.098 Luminance of white 【Note4】 ＹＬ 350 450 Cd/m2 【Note4,7】 White Uniformity δ Ｗ 70 % 【Note 3,9】 ※ The measurement shall be executed 30 minutes after lighting at rating. FIG. 1 Optical Characteristic Measurement Equipment and Ta:25±2 °C, VLCD:5.0V, fV:60Hz, Dclk:80MHz, Luminance Ratio:100% LCD Module Optical Stage(x,y) Pritchard 880 or equivalent 500mm Note 1: Ambient temperature = 25℃. Note 2: To be measured in dark room after backlight warm up 30 minutes. Note 3: To be measured with a viewing cone of 1°by Topcon luminance meter ELDIM EZContrast 160D. Note 4: To be measured with the detector PR880 Note 5: Definition of response time: The output signals of BM-7 are measured when the input signals are changed from “Black” to “White” (falling time) and from “White” to “Black” (rising time), respectively. The response time interval between the 10% and 90% of amplitudes. Refer to figure as The response time is defined as the following figure and shall be measured by switching the input signal for “black” and “white”. Note 6. Definition of contrast ratio: Contrast ratio is calculated with the following formula. Contrast ratio (CR)= Brightness on the "white" state -------------------------------------- Brightness on the "black" state Note 7: Driving conditions for CCFL: IL= 6.5 mA, 52KHz Frequency. Response Time Tr TfD 100 90 Optical Response Note 8: Definition of viewing angle: Note 9: Definition of white uniformity: White uniformity is calculated with the following formula. Luminance are measured at the following thirteen points (1~13). Δ W= Minimum Brightness of 13 points ----------------------------------------- Maximum Brightness of 13 points Normal Y E φ θ φ = 0°, Right φ = 180°, Left φ = 270°, Down φ = 90°, Up Display Electrical and Functional Specifications Input and Output Signals This LCD TV shall have the ability to operate under following range with stable blue color of LED indicated. Any signal outside of the limits (any combination) shall not cause any damage to the unit or driving source. The range of operation is: � PAL( 4.43M ) Receivable VHF/UHF/CATV, channels Auto-preset tuning, PAL ( 4.43 M , 50 Hz ) B、G、D、K、H、I, PAL ( 4.43 M , 60 Hz ) SECAM D、K � TV system PAL and SECAM system Receivable Full frequency range From channel E2 ( 48.25 MHz ) to channel E69 ( 855.25 MHz) � VGA input Horizontal input frequency range 30kHz to 60kHZ Vertical input frequency range 56 Hz to 75 Hz Max. Resolution 800X600 The LED shall indicate green color and OSD will show “ Out of Range “ message within 5 seconds after signal is out of range or down scaling support from selected inpu The LED shall indicate green color and OSD will show “ No Signal “ within 3 seconds while there is missing signal from selected input. Video input CVBS Input Signal Type : Analog Polarity : Positive Level : 1Vp-p ( with Sync.) Impedance : 75Ω ± 5% Interface : RCA jack, Yellow color S Video Input Signal Type : Analog Polarity : Positive Level : Y : 1Vp-p ( with Sync.) C : 0.286Vp-p Impedance : 75Ω ± 5% Interface : DIN jack SCART ( R.G.B ) Input Signal Type : Analog Polarity : Positive Impedance : 75Ω ± 5% Interface : 21 Pin Euro-SCART Audio input, output and Speaker Audio input Level : 500mVrms Type : Stereo R/L Channels Impedance : More than 22kΩ Jack : RCA jack , Right channel : Red color. Left Channel : White color PC Stereo Input Level : 500mVrms Type : Stereo R/L Channels Impedance : More than 22kΩ Jack : 3.5mm Stereo jack , Black color Headphone output: Level: 0.5W rms/per Channel(typ.) for 16 ohm earphone Type: Stereo R/L Channels Jack: 3.5mm Stereo Built-in Speaker Max. Audio output ( at 10% THD max. ) at 1.0Vp-p / 1kHZ input : 2W + 2W Sound Distortion at 250mW/1kHZ : 1% THD max. Speaker: Two of 3W Speaker impedance: 4 ohms at 1kHZ Residual Hum at Min. Volume : 500uW Max. Max. Hum at Max. Volume : 1000uW Max. Audio Line out Output level: 400Vrms. Type: stereo R / L channels. Jack: 3.5 m/m stereo jack. RF Input Indication of input level : 75Ω terminate value No. PARAMETER MIN TYP MAX UNIT NOTE 1 Video Output Level 0.6 0.9 1.2 Vp-p 2 Video S/N 40 45 --- dB 3 Noise limiting --- 38 45 dbuV 2 MHz --- 0.0 -1.5 dB 3 MHz --- -0.5 -2.5 dB 4 Video amplitude at discrete frequencies 4.43 MHz --- -1.0 -4.0 dB 5.5/6M hz 42 --- dB 5 Sound carriers rejection 6.5 MHz 40 --- dB 6 Audio S/N 50 63 --- dB 7 Frequency Range for PAL 55.25 801.2 5 MHZ 8 Audio sensitivity 40 dBuV VGA Input Separate Sync: Level: Low = 0 to 0.8V High = 2.0 to 5 V Polarity: Positive or Negative Impedance: 1 k ohm or higher R.G.B. Input Signal: (comply with VESA) Level: 0 to 700mv Positive Rise/Fall time: < 5ns Overshoot: < 10% of maximum transition. Impedance: 75Ω ± 5% Current Sink and Source When low level is asserted, the maximum current sink from any single monitor sync input node to the driver is 2.0mA. When high level is asserted, the maximum current source from the driver to any single monitor sync input node is 500uA. D-Sub Pin Out ( Pantone 661C, Blue color ) PIN Signal PIN Signal 1 Red Video 9 +5V ( PC97 ) 2 Green Video 10 VGA-CONN(Sync GND) 3 Blue Video 11 Ground 4 Ground 12 SDA ( DDC Data ) 5 Ground 13 Horizontal Sync 6 Red Ground 14 Vertical Sync 7 Green Ground 15 SCL ( DDC Clock ) 8 Blue Ground Terminals Configuration RF 75Ω DIN45325 ( IEC169-2 ) Type AV 1, S1 RCA for CVBS, Audio R / L S Din for S-Video SCART SCART for R.G.B and Audio R / L PC Analog Port D-sub 15pin VGA PC Stereo input 3.5mm∮ Earphone Jack Headphone 3.5mm∮ Earphone Jack Service Port ISP through D-sub TV System This LCD TV could support PAL / SECAM ( CCIR B/G, D/K, I and L/L’ ) system. The system allocation as following: TV System Configurations: Destination PAL / SECAM Color System CCIR B/G, D/K, I and L/L’ Sound System Sound 1 and Sound 2 Stereo System NICAM and FM Stereo ( A2 ) Channel System Full frequency range from channel E2 ( 48.25 MHz ) to channel E69 ( 855.25 MHz) Subtitles Configuration Function define Closed Caption NO V-Chip NO TeleText YES 10 pages Comb Filter This LCD TV shall have Motion adaptive 2D digital Y/C separation improves the luma-chroma separation process such that the luma and chroma are perfectly separated for a stationary image. Firmware Specifications Preset Mode for VGA Input 8 factory pre-set modes for VGA input is saved during the manufacturing process. Preset mode Pixel Format Hor. Freq. (kHz) Hor. Polarity Vert. Freq. (Hz) Vertical Polarity Standard 1 720*400 31.47 - 70 + VGA 2 640*480 31.47 - 60 - VGA 3 640*480 37.861 - 72 - VESA 4 640*480 37.50 - 75 - VESA 5 800*600 35.156 - 56 + VESA 6 800*600 37.879 + 60 + VESA 7 800*600 48.077 + 72 + VESA 8 800*600 46.875 + 75 + VESA This LCD TV shall have 10 or more user modes for user to creat own timing. This LCD TV would detect the used mode automatically. Power Saving While VGA is selected to be input, this LCD TV is equipped with a power-management according to VESA DPMS. There is a delay of 5 seconds before the transition from On-state to power saving state to avoid unintentionally entering of a power saving state during display resolution and timing mode changes. During the period of delay, the LED shall indicate green color and OSD will show “ POWER SAVE “. Transition from any power saving state to another can be instantaneous. The recovery from Off-state requires no manual power on. Mode Hsync Vsync Video Power Indication Recovery time Power-On On On Active <63W Green -- Stand-by Off On Off <5W Amber <3s Suspend On Off Off <5W Amber <3s Off-state Off Off Off <5W Amber <3s Power off × × × <5W Dark Turn on <5s Sync on means: normal operation Sync off means: Hsync: f<1kHz, duty cycle>25%, Vsync: f<10Hz,duty cycle>25% The power-consumption is valid over the specified voltage and frequency range. Power comsuption is measured from AC source. There are no power saving modes for TV, AV1, S1, SCART inputs. VESA DDC The VGA input shall be capable of continuously transmitting its Extended Display Identification (EDID) information using Display Data Channel. It shall automatically switch to DDC2 mode if a DDC2 capable host is detected in accordance with the VESA DDC standard. In addition, the display can respond to a request for EDID, to be transmitted using DDC2, level B commands. If a DDC2 capable host is detected by the display, the display shall switch to DDC2 communication. The EDID shall contain the manufacture name code QCI, product code, date of manufacture, and serial number. For complete EDID data structure, please refer to VESA Extended Display Identification Data Standard. Hardware implementation may be either integrate into micro-controller or be a separate electrical component. EDID memory must be protected against writing or other corruption through customer- accessible electrical connection and required communication channels. Password protection, use of an unpublished enable register, or use of direct electrical connection is acceptable levels of protection provided that the power-on Default State is that disabling writing. The serial number fields in the EDID must contain a unique identifying numbers among units of the same model. EDID Table is defined as below: For VGA input : 128 BYTES OF EDID CODE : 0 1 2 3 4 5 6 7 8 9 ------------------------------------------------------------ 0 | 00 FF FF FF FF FF FF 00 04 72 10 | D0 07 00 00 00 00 10 0F 01 03 20 | 68 29 1F 78 E8 5E 23 A4 56 48 30 | 9D 24 11 46 4A AF C0 00 31 40 40 | 45 40 00 00 00 00 00 00 00 00 50 | 00 00 00 00 A0 0F 20 00 31 58 60 | 1C 20 28 80 94 04 9A 36 11 00 70 | 00 1A 00 00 00 FD 00 32 4B 1E 80 | 30 05 00 0A 20 20 20 20 20 20 90 | 00 00 00 FF 00 31 32 33 34 0A 100 | 20 20 20 20 20 20 20 20 00 00 110 | 00 FC 00 41 63 65 72 20 41 54 120 | 32 30 30 31 0A 20 00 AA __________________________________________________________ Control Button Key Function POWER Software On/Off MENU Press this button to open the OSD or Enter function CH ▲ or CH ▼ When OSD is on: Press key to move icon to up position Press key to move icon to down position When OSD is off: Press these buttons to select the TV channel in sequence. VOL or VOL When OSD is on: Press key to increase volume value or move icon to right position Press key to decrease volume value or move icon to left position When OSD is off: Press these buttons to select the volume level. INPUT Press this button to select the input : TV AV1/S1 SCART VGA Remote Controller Key Definition BUTTON DESCRIPTION POWER Turns the selected component ON/OFF. TV Selects a programmed TV. INPUT Changes the input source. MPX Changes the SOUND output. SLEEP Turns on the sleep timer. UP/DOWN Navigates up and down in the on-screen display (OSD) menus. LEFT/RIGHT Navigates left and right in the on-screen display (OSD) menus. MENU Displays menus for TV and other options. R RED, activates Teletext command or the Sound menu when Teletext is not displayed. G GREEN, activates Teletext command or the Picture menu when Teletext is not displayed. Y YELLOW, Teletext command. C CYAN, Teletext command. TEXT Toggles ON/OFF Teletext mode. HOLD Temporarily holds the current Teletext page. SIZE Selects the size of the text in Teletext mode. SUB PAGE Turns ON/OFF the display of subpages for Teletext (where available). INDEX Brings up the initial Teletext page. REVEAL Displays hidden information. MIX Displays Teletext superimposed on top of the TV image. Number pad Selects a channel or enters a password. LAST Recalls the last viewed channel and input source. INFO Shows the current status of your LCD TV, such as the video input source, audio status, and channel number. CH Changes the channel. VOL Increases/decreases the volume. MUTE Mutes or restores the sound volume. Button Key Definition BUTTON VIEWING FUNCTION (OSD OFF) MENU FUNCTION (OSD ON) Lowers the sound level. Reduces a menu option value. Increases the sound level. Displays a submenu with selections for the current menu option. Increases a menu option value. Selects the input source. N/A Turns the LCD TV ON/OFF. N/A Activates the OSD main menu. Returns to the previous menu or to normal viewing. Displays the previous stored channel. Selects the previous menu option. Displays the next stored channel. Selects the next menu option. Sound Systems The System has a feature that allows reception of sound other than the main audio for the program. This feature is called Multi-channel Television Sound (MTS). The System with MTS can receive mono sound, stereo sound and Secondary Audio Programs (SAP). The SAP feature allows a TV station to broadcast other information, which could be audio ( mono ) in another language or something completely different like weather information. The images display examples when receiving MTS and SAP are as follows: Input Sound Mode Sound Key Pressed Stereo Mode Stereo Mono Main + SAP Mode Main SAP Dual Stereo + SAP Mode Stereo SAP Mono Mono Mode Mono Mono • Stereo broadcasts View programs like live sporting events, shows and concerts in dynamic stereo sound. • SAP broadcasts Receive TV broadcasts in either MAIN or SAP sound. MAIN sound: The normal program soundtrack (either in mono or stereo). SAP sound: Listen to second language, supplementary commentary and other information. (SAP is mono sound.) • Once “MONO” mode is selected, the sound remains mono even if the System receives a stereo broadcast. You must switch the mode back to “STEREO” if you want to hear stereo sound again. • Selecting MPX while in the input mode does not change the type of sound. In this case, sound is determined by the video source. OSD Menu Abstract Structure OSD Menu for EURO OSD Translations : Performance Specifications The performance shall be check at 25oC environment. White Balance and Uniformity : Normal : x: 283 y: 293 Warm : x: 313 y: 329 Cold : x: 268 y: 268 Display Area, Phase , Center and Tilt A E D C F B Max. Brightness : The brightness should exceed 300 Cd/m2 while set both of contrast and brightness to max. and color temperature of Standard is selected. ( Typical value would be 450 Cd/m2 ). Power Supply Electrical Specifications The power supply for this product is an internal converter, with a non-replaceable fuse internally. This converter shall be well designed to meet CE mark requirement. Input Voltage and Frequency Range The operating range of line voltage shall be : AC 90volts to 264volts, 47HZ to 63HZ Power comsuption shall be under 63 Watts Variation of the line voltage throughout the applicable operating range shall not result in any visible image anomalies such as image movement, changes in light output, nor changes in image stability or quality. Power on LED Location and Type Power on indicator shall be easily visible from the front of the display. Inverter Display Area: 20 inches diagonal H-Phase: A-B Less than 1.5mm V-Center: C-D Less than 1.5mm Tilt: E-F Less than 1mm The inverter which is used to light up back-light of LCD panel shall be well designed to meet requirement of panel’s specification. Accessories Following accessories would be contained to shipout with LCD TV. Cables Power Cord Length: 1.8meters +15mm/-0mm Cable Color: Black color Quantity: One AV ( Video & Audio) Cable Length: 1.8meters +15mm/-0mm Cable Color: Black color Quantity: One SCART Cable Length: 1.8meters +15mm/-0mm Cable Color: Black color Quantity: One TV Antenna Cable Length: 2.5meters +15mm/-0mm Cable Color: Transparent color Quantity: One Remote Controller Multi-function remote controller include battery Quantity: One I/O Board ( Reserved ) Others TV Users Guide Quantity: One Remote Control Users Guide Quantity: One Warranty Card Quantity: One Mechanism Specifications Cosmetic and quality standards for injection molded plastic parts This specification defines the criteria to be used for inspection resulting in the acceptance or rejection of parts due to visual, cosmetic and functional requirements for customer visible surfaces. Surface quality Surface color, gloss, texture, blemishes, and all other irregularities in the plastic shall comply with Quanta’s approval sheet. Fade and color change All external surfaces shall be sufficiently rugged to withstand normal operator usage without extreme visible deterioration in color. Appearance Gap Specifications Refer to cosmetic specification. Torque Specifications Tilts Torque : Refer to engineering specification. Physical Specifications Overall Dimensions: Height : 429 mm Width : 750 mm Depth : 215 mm Base Tilt: 0°,+15° Mass Mass of display with cable approx.: 8.0 Kg VESA Mounting Holes 100 m/m * 100 m/m Packing Specifications Carton Label Refer to packing instruction Pallet Dimension Refer to packing instruction Shipping Container Stowing Method Refer to packing instruction Regulatory and Reliability Requirements Regulatory Requirements Product Safety Agency Approvals Emissions/Susceptibility Power Management ( Reserved ) Environmental Requirements This display shall meet the following environmental requirements under normal operating conditions. Operating 25° ± 5° for Purity, White Point, Mis-convergence, Luminance measurements and White uniformity measurement Operating temperature 5°C to 35°C Operating humidity 10% to 90% (non-condensing) Storage and Shipping Storage temperature -20°C to 60°C Shipping temperature -20°C to 60°C Storage humidity 10% to 90% (<40°C )(non-condensing) Shipping humidity 10% to 90% (<40°C) (non-condensing) Altitude Operating altitude 0 to 12,000 feet Units tested at an altitude up to 12,000 feet must operate at normal conditions without exhibiting abnormal behavior such as arcing or shutdown. Shipping altitude 0 to 40,000 feet Storage altitude 0 to 40,000 feet Transportation Please refer to Packing instruction Reliability Performance Electrostatic Discharge Requirements This display shall withstand 4kV for contact discharge and 8kV for air discharge of Electrostatic Discharge to meet the acceptance criteria as specified in EN55024. Hinge Life Mean time between failure (MTBF) For the purposes of demonstrating the MTBF of this product, a failure is defined as the inability of the product to function in accordance with this specification. A failure event interrupts the expected operation of the product and requires service or repair to restore the product to full functionality. The MTBF of this product shall be demonstrated to meet or exceed 50,000 hours @ 25 °C at a 90% lower confidence limit under all operating conditions as specified in previous section. ( Lamp life is not included ) All components including power and inverter shall be derate to 80% for active devices, 80% for capacitors and 50% for resistive components, except for polarized capacitors which may be operated at 90% of voltage - which are all calculated under worst case conditions. Mean Time Between Replace ( MTTR ) This display shall be well designed to take less than 5 minutes for replacing control board or inverter board. Note: If there is anything not clarified or specified on this specification, PVT sample shall be a standard reference. 檔名: 2-2-C2A_EU product spec_0601-2005 目錄: D:\00-ACER PROJECT-0529-2005\00-ACER-C2A-- AUO-20-inch\00--C2A-MDRR-MRR document 範本: C:\MSOffice\Template\商用文書\SPEC1.dot 標題: VT1N product spec 主旨: 作者: Golden 關鍵字: 註解: 建立日期: 2005/5/23 2:23:00 PM 修訂版編號: 50 前次更新日期: 2005/6/2 11:09:00 AM 前次存檔人員: 89080103 編輯總時間: 281 分鐘 最後列印在: 2005/6/14 10:49:00 AM 最後列印的字數 頁數: 35 字數: 4,230 (約) 字元數: 24,116 (約) 34 Chapter 3 35 To disassemble the AT2001, you need the following tools: � Wrist grounding strap and conductive mat for preventing electrostatic discharge. � Wire cutter. � Phillips screwdriver (may require different size). NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatches when putting back the components. Machine Disassembly and Replacement Chapter 2 36 Chapter 3 General Information Before You Begin Before proceeding with the disassenbly 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. Chapter 3 37 Disassembly Procedure This section tells you how to disassemble the system when you need to perform system service. Please also refer to the disassembly video, if available. CAUTION: Before you proceed, make sure you have turned off the system and all peripherals connected to it. 38 Chapter 3 Removing the Stand Assy 1. Remove the four screws securing the stand assy and remove it. 2. Remove the screw securing the stand neck and stand base, and seperate them. Chapter 3 39 Removing the IO Box 1. Remove the two screws securing the IO box and remove it. 2. Remove the three screws securing the IO box shielding. 3. Remove the screw securing the IO board and remove it from the IO bracket. 40 Chapter 3 Disassembly the Main Unit Removing the Rear cover 1. Remove the ten screws securing the rear cover and remove it. Disconnecting the Cables 1. Open the cable clamp on the bracket. 2. Disconnect the speaker cable from the Mainboard. 3. Disconnect the button board cable and IV board cable from the mainboard.(from left to right) 4. Disconnect the cables from the IV board. Chapter 3 41 Removing the Speaker 1. Remove the four screws securing the left and right speakers. 2. Remove the speakers from the front bezel. Removing the button board 1. Remove the three screws securing the button board and remove the botton board from the front bezel. 2. Disconnect the button cable from the button board. Removing the Wall Mount Assembly 1. Remove the eight screws securing the wall mount bracket. 2. Lift the wall mount bracket and disconnect the FPC cable from the panel and remove the wall mount bracket. 42 Chapter 3 3. Remove the two screws securing the mainboard as shown. Turn the bracket over. Remove another seven screws securing the mainboard and remove the mainboard. 4. Disconnect the FPC cable from the mainbaord. NOTE: The mainboard color might be diffenent. Removing the IV Board 1. Remove the four screws securing the IV board bracket and remove it. 2. Disconnect the cable from the IV board. 3. Remove the four screws securing the IV board. Chapter 3 43 Removing the Panel 1. Remove the nine screws securing the top panel bracket and remove it. 2. Remove the nine screws securing the bottom panel bracket and remove it. 3. Remove the panel from the front cover. Chapter 4 44 This chapter provides troubleshooting information for the AT2001. No Power Check CON11 Pin 14,15 Check CON11 Pin 14,15 No Power No Power No Plug in Adapter Plug in Adapter Check U17 pin3,2.5V Check U17 pin3,2.5V Check U30 3.3V, correct Check U30 3.3V, correct Check U20 Pin2, 1.8V Check U20 Pin2, 1.8V Check IO BOX Plug in Check IO BOX Plug in Check Power button correct? Check Power button correct? No No No Yes Yes Yes Yes Yes Change U17 Change U17 No Check Connection Check Connection Change U30 Change U30 No Change U20 Change U20 Change button or cable Change button or cable Check Xtal Y2 Check Xtal Y2 Yes Chapter 3 Troubleshooting 45 Chapter 4 No Characters, Missing Color Check VGA cable Check VGA cable Change CON10 Change CON10 Check CON5 VGA cable Check CON5 VGA cable No Characters Missing Color No Characters Missing Color No Check U12 Output Check U12 Output Yes No Check CON10 LCD connectors Check CON10 LCD connectors Check FFC Check FFC OSD adjust ok? OSD adjust ok? No Yes Re-adjust Re-adjust No Yes Chapter 4 46 NO Signal No signal No signal Check VGA cable Check VGA cable NO Change VGA Cable Change VGA Cable OK Check CON5 Check CON5 NO Check H,V sync Input circuit Check H,V sync Input circuit Change U12 Change U12 Change CON5 Change CON5 OK NO Change NG component Change NG component OK 47 Chapter 4 Chapter 6 47 This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of LCD TV AT2001. 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 printed 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) List Chapter 4 48 Chapter 6 Exploded Diagram Chapter 6 49 Number Item 1 Front Cover Assy 2 Speaker Assy 3 Screw 3 X 20.4-B(NI) 4 AL-FOIL-LCD 5 Panel Bracket AU 6 LCD(TFT) 20.1” (SVGA) 7 Screw M3.0X12-B(MC) 8 VS3 Button Assy 9 Screw T3X8(NI) 10 Cable Assy (MB-Button) 11 Cable VS8 M/B(FFC, 50P, 300MM, REV3A) 12 VS3 M/B Assy EU 13 Cable Assy Inverter(15P, REVIA)GL 14 Inverter-Bracket 15 INV Module(LCE) 16 Gasket-LCD 17 Wall Mount Bracket Assy 18 Screw M3X4.0-I(NI) 19 IO Nut VTI 20 Back Cover 21 IO Cover 22 Screw T4X10-P(BNI) 23 Stand Assy 24 Screw M4X10-B(BK-NYLOK) 25 Cable Assy EMI-GND 50 Chapter 6 FRU List AT2001 FRU List Picture No. Partname And Description Part Number Accessory REMOTE CONTROLLER - EU 25.M04V7.001 Adapter ADAPTER 15V 4.2A ADP-63BB B 100~240V 25.M04V7.001 Boards TUNER MODULE - PAL 6M.M04V7.001 MAIN BOARD - PAL 55.M04V7.001 INVERTER BOARD 55.M04V7.002 BUTTON BOARD 55.M04V7.003 Case/Cover/Bracket Assembly STAND NECK ASSY 60.M04V7.001 STAND BASE ASSY 60.M04V7.002 Chapter 6 51 STAND BRACKET FIX 60.M04V7.003 FRONT COVER 60.M04V7.004 BACK COVER 60.M04V7.005 I/O COVER 42.M04V7.001 WALL MOUNT BRACKET ASSY 33.M04V7.001 INVERTER SHIELDNG 33.M04V7.002 LCD BRACKET AU 33.M04V7.003 Cables POWER CODE EU 3P 1.8M 27.M04V7.001 POWER CODE UK 3P 1.8M 27.M04V7.002 INVERTER CABLE 50.M04V7.001 AT2001 FRU List Picture No. Partname And Description Part Number 52 Chapter 6 CABLE - MB TO LCD 50.M04V7.002 CABLE - MB TO BUTTON BOARD 50.M04V7.003 CABLE - IB TO GROUND 50.M04V7.004 CABLE - VB1D PAL 50.M03V7.018 CABLE - SCART TO SCART 50.M03V7.019 LCD LCD(TFT) AU 20.1'' A201SN02 V4(SVGA) 56.M04V7.001 Miscellaneous AL FOIL - LCD 47.M04V7.001 GASKET - LCD 47.M04V7.002 Speaker SPEAKER ASSY C1H FG-QT132(4P,REV 1A)L-F 23.M04V7.001 Screws SCREW M4*10-B(BK-NYLOK) SCREW T4*10-P (BNI) AT2001 FRU List Picture No. Partname And Description Part Number Chapter 6 53 SCREW M3.0*6.0-I-NI SCREW M3*4-I (NI) SCREW M3.0*12.0-B(MC) SCREW 3 X 20.4-B (NI) SCREW T3*8 P (NI) IO NUT VT1(MBVT1002,REV3A) AT2001 FRU List Picture No. Partname And Description Part Number