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Acer AT2230 Service Manual

Acer at2230 & at2231 lcd tv service guide
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Acer AT2230 & AT2231
Service Guide
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Table of Contents
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  Summary of Contents for Acer AT2230

  • Page 1 Acer AT2230 & AT2231 Service Guide...
  • Page 2 Service Guide Version and Revision Version Date Revision History TPV Model Name Jul.-23-08 Initial release E228M3NBWAZANN Aug.-03-08 Add FRU List E228M3NBWAZANN...
  • Page 3 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.
  • Page 4 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. Warning: (For FCC Certified Models) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
  • Page 5 Precautions Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.
  • Page 6: Table Of Contents

    Table Of Contents ……………………………………… Monitor Features General Specifications ……………………………………… LCD TV Description ……………………………………… Precautions And Notices ……………………………………… D-SUB / HDMI Digital connector ……………………………………… Chapter 1 Factory Preset Display Modes ……………………………………… LCD TV Panel Specification ……………………………………… Panel Features ……………………………………… General Specifications ………………………………………...
  • Page 7: Monitor Features

    Chapter 1 Monitor Features General Specifications...
  • Page 8: Lcd Tv Description

    LCD TV Description The LCD TV will contain a main board, a power board a function keyboard and an IR board. The main board and power board will house the flat panel to control logic I C bus, DDC, brightness control logic for LCD panel, DC-DC conversion to supply the appropriate power to the whole board and transmitting TTL level signals into LCD Module to drive the LCD display circuit.
  • Page 9: D-Sub / Hdmi Digital Connector

    D-SUB PIN Distribution This procedure gives you instructions for installing and using the LCD TV display. (1) Position the display on the desired operation and plug the power cord into a convenient AC outlet. Three-wire power cord must be shielded and is provided as a safety precaution as it connects the chassis and cabinet to the electrical conduct ground.
  • Page 10: Chapter 1 Factory Preset Display Modes

    Factory Preset Display Modes: Analog RGB Signal Timing...
  • Page 11: Lcd Tv Panel Specification

    LCD TV Panel Specification The M220Z1-L03 model is a 22 inch wide TFT-LCD module with a 4-CCFL Backlight Unit and a 30-pin 2ch-LVDS interface. This module supports 1680 x 1050 WSXGA+ (16:10 wide screen) mode and displays up to 16.7 millions colors.
  • Page 12: Optical Specifications

    Optical Specifications Test Conditions Optical Specifications...
  • Page 13: Connecting Peripherals

    Chapter 2 Connecting Peripherals Front panel controls...
  • Page 14: Remote Control & Osd Operating

    Remote Control & OSD Operating instructions Chapter 3 Using the Remote Control 5 e (Empowering Technology) Press to activate and select the scenario mode. See page 9. 6 MENU Press to open or close the Menu. 7 Back Press to back to previous Menu. 8 Directional keys/OK 9 MPX Press to select the audio type, displayed in the top...
  • Page 15 Teletext 1 Colour buttons (R/G/Y/B) Operates corresponding button on the teletext page. 2 INDEX Press to go to the index page. 3 SUBTITLE Press to view subtitles on the screen. 4 REVEAL Press to reveal hidden teltext information. 5 SUBPAGE Press to access the teletext’s subpages directly.
  • Page 16: Using The Osd Menus

    Using the OSD Menus...
  • Page 22 How To Optimize The DOS-Mode Plug And Play Plug & Play DDC2B Feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.
  • Page 23: Chapter 4 Machine Disassembly

    Chapter 4 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. The tools listed as below are that we may use during this procedure: 1. A proper screwdriver 2. A pair of glove 3. A pliers 4.
  • Page 24 Disassemble the back cover 1. Remove four screws to remove back cover. (Fig 4) (Fig 4) Remove the Shielding-EMI (Fig 5)
  • Page 25 Remove the main board, power board and key board. 1. Release all the connecting wires marked in blue for these boards. (Fig 6) 2. Remove the screws marked in red to remove power board and main board. (Fig 6) 3. Remove the key board. (Fig 7) (Fig 6) Key board (Fig 7)
  • Page 26 Remove the main frame Remove the four screws marked in red to remove the main frame. (Fig 10) (Fig 11) Disassemble the IR board (Fig 12) Disassemble the front panel (Fig 13)
  • Page 27: Chapter 5 Trouble Shooting

    Chapter 5 Trouble Shooting No picture (LED orange) No picture Check key board/IR board Change key board/IR board Check 24V power supply Check the power supply circuit Check main board Standby power supply Change U707 Check U401 Change U401 Check I C communication Check I C bus...
  • Page 28 Abnormal display Reset source Check the source Check signal filter circuit Replace the filter or resistance RF signal Check TV system setup Check input Check LVDS cable Check Tuner Replace LVDS cable Check panel Replace panel Replace Tuner...
  • Page 29 No sound Reset source Check the source Check if mute Check TV Reset TV system Check input signal TV SIF system Check U401 Check TU101 Change TU101 Change U401 Check U601 Change U601 Check speaker Change speaker...
  • Page 30 No Power (No LED indicator) Check CN902 pin10,11 = 12V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin8 of IC901 Check R904, R905 and Change IC901 Check the auxiliary voltage is bigger than 10V and smaller than 20V...
  • Page 31 W / LED, No Backlight Check 12V input Check adapter or MB Check ON/OFF Check Interface board Check IC801 Change ON/OFF Check IC801 PIN1.15 have the output of square wave at short time Change IC801 Check the input of Q805, Q806 Change Q805, Q806,D801,D802,D803,Q804 Check the output of PT802 Change PT802...
  • Page 32 Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Pad Board Replace Button Switch Is Button Switch normally? Is Key Pad Board Normally? Replace Key Pad Board Check Main Board...
  • Page 33: Chapter 6 Upgrade Firmware

    Chapter 6 Upgrade Firmware 1. Using USB port connecting PC & MST99980 Board via ISP board as below. Turn on the monitor. 2. Run the program ISP_Tool.
  • Page 34 3. Click the button “Connect”, if it can identify the type of the device, please click the “Dis Con” and then click the “Connect” again.
  • Page 35 4. Click the button “Read” to load the software file and then click the “Auto”.
  • Page 36 5. When the picture showed as below, we can click the “run” to finish to upgrading.
  • Page 37: Chapter 7 White-Balance, Luminance Adjustment

    Chapter 7 White-Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. YPbPr Mode display adjustment White balance adjustment (B) General set-up: Equipment Requirements: Minolta CA-110 or Equivalent Color analyzer Quantum Data Pattern Generator 802G, 802BT or equivalent instrument Input requirements: Input Signal Type: YPbPr signal 1.
  • Page 38 store those values to NVM. White- Balance alignment: 1. Select source as “HDMI1” 2. Apply Flat pattern (100% white pattern), at FAC mode menu, select Factory -> Picture -> Colour Temp item 3. Set color temperature to “Standard”. 4. Adjust the R Gain, G Gain, B Gain values to meet “Standard” color coordinates specification below. Then store those values to NVM.
  • Page 39 PC mode display adjustment WHITE-D adjustment (B) General set-up: Equipment Requirements: Minolta CA-110 or Equivalent Color analyzer Chroma 2250 or equivalent PC signal generator Input requirements: Input Signal Type: PC VGA signal 1024X768/60Hz PC mode with PGCWRGB pattern. (see pattern-1) Input Signal Strength: 0.7 Vp-p linear voltage.
  • Page 40: Fru (Field Replaceable Unit) List

    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.
  • Page 41: Part List

    Part List Above picture show the description of the following component. Item Picture Description Bezel Panel Base Power Board...
  • Page 42 Main Board Key Board IR Board Speaker...
  • Page 43: Edid Data

    EDID Data DDC DATA for D-Sub Input...
  • Page 44: Chapter 9 Pcb Layout

    Chapter 9 PCB Layout Main Board...
  • Page 46 Power Board...
  • Page 47 Key Board IR board...
  • Page 48: Chapter 10 Schematic Diagram

    VPORT0603100KV05 VPORT0603100KV05 S-Video Input AUDIO&VIDEO Input T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer AT1930/2230 Size 絬 隔 瓜 絪 腹 TPV MODEL Key Component 03 Video Input PCB NAME 715T2849-1 称爹 <称爹>...
  • Page 49 22K OHM 1/10W T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer AT1930/2230 絬 隔 瓜 絪 腹 TPV MODEL Key Component 04 SCART & Y PbPr Input PCB NAME 715T2849-1 称爹 <称爹>...
  • Page 50 R831 0 OHM 1/16W 8,12 R832 0 OHM 1/16W 8,12 CN107 DB15 R110 47 OHM 1/16W C107 0.047uF RIN+ C108 0.047uF R111 47 OHM 1/16W GIN+ R112 47 OHM 1/16W C109 0.047uF BIN+ R113 C110 1000pF R115 R116 VGA5V D103 D104 D105 R114...
  • Page 51 HDMI_RX0-_3 U505 RClamp0524P.TCT HDMI_RX0+_3 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer AT1930/2230 絬 隔 瓜 絪 腹 TPV MODEL Key Component 06 HDMI Input PCB NAME 715T2849-1 称爹 <称爹> Date Tuesday , July 22, 2008...
  • Page 52 CONN 8 bit LVDS T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer AT1930/2230 絬 隔 瓜 絪 腹 TPV MODEL Key Component 07 Panel I/F PCB NAME 715T2849-1 <称爹> 称爹 Tuesday , July 22, 2008...
  • Page 53 100 OHM 1/10W MX25L8005M2I-15G C457 10pF R421 R424 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer AT1930/2230 Size 絬 隔 瓜 絪 腹 TPV MODEL Key Component 08 MST99980 PCB NAME 715T2849-1 <称爹> 称爹 Date...
  • Page 54 0.1uF EM638165TS-6G Etronteck EM 638165TS-6_166M Hz_4M x16 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer AT1930/2230 Size 絬 隔 瓜 絪 腹 TPV MODEL Key Component 09 DDR & SDRAM PCB NAME 715T2849-1 <称爹>...
  • Page 55 A-PLOP T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom Acer AT1930/2230 絬 隔 瓜 絪 腹 TPV MODEL Key Component 10 Audio Amp.& PC Audio Input PCB NAME 715T2849-1 称爹 <称爹> Date...
  • Page 56 Audio Amp R754 0 OHM 1/16W T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer AT1930/2230 絬 隔 瓜 絪 腹 T2849-H-X-X-1-080509 TPV MODEL Key Component 11 Power PCB NAME 715T2849-1 <称爹> 称爹...
  • Page 57 20PF 20PF R821 +3.3_SUB R822 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer AT1930/2230 Size 絬 隔 瓜 絪 腹 TPV MODEL Key Component 12 Sub MCU PCB NAME 715T2849-1 称爹 <称爹> Tuesday , July 22, 2008...
  • Page 58 Power board R9 18 1 00R 1/4W C92 1 F902 0 .0 01uF R919 +12V T 901 1 00R 1 /4 W L904 Ju m per POWER X 'FM R 3.5 uH ZD92 0 R9 40 RLZ1 3B 8 0T L 19T 3 3 N R92 0 C917 C918...
  • Page 59 PT 802 CN801 POWER X'FM R CONN C819 56pF/3KV R805 +12V 100R 1/10W C820 CN802 D801 56pF/3KV CONN LL4148 Q805 PT 801 ON/OFF AO4616 R806 100R 1/10W L801 ZD802 RLZ5.6B C816 27pF/6KV D802 57T 600517 R804 R803 ZD803 LL4148 C824 5K1 1/10W RLZ5.6B 27pF/6KV...
  • Page 60 Key board NOTE Pull up R = 3.9K ohm to 3.3V SOURCE MENU VOL- VOL+ KEY1 1.04V 0.35V 2.44V 1.73V C001 0.1uF/25V SW001 SW002 SW003 SW004 R001 R002 R003 R004 4.3K OHM 1% 1/10W 1.8K OHM 1% 1/10W 470 OHM 1% 1/10W 11KOHM1/10W CN001 POWER...

This manual is also suitable for:

At2231At1930At1931