AOC e2450Swd Service Manual
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AOC e2450Swd Service Manual

AOC e2450Swd Service Manual

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e2450Swd
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e2450Swd
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  • Page 1 Service Manual e2450Swd AOC 显 示 器 维 修 手 册 Model: e2450Swd...
  • Page 2 Service Manual e2450Swd Revision List Version Release Date Revision History TPV Model Name TDAMN22DAHA6HAE TDAMN22DAHA6HRE TDAMN22DAGA6HNE Jul-29-2011 Initial release TDBMN22DAHA1HCE TDBMN22DAHA1H6E TDAMN22DAHA6HNE TDBMN22DAHA1HNE TDB2N22DAHA1HNE TDB2N22EAHA1HNE Dec-01-2011 Add new models TDBMN22EAHA1HNE TDBMN22EAHA6HNE TDCWN22MAHA1HNJ Jan-07-2013 Add new models TDC2N22KAHE6HNJ...

  • Page 3: Table Of Contents

    Service Manual e2450Swd CONTENTS 1. Monitor Specifications ----------------------------------------------------------------------------------------- 4 1.1 Product Features --------------------------------------------------------------------------------------------- 4 1.2 Factory Preset Mode----------------------------------------------------------------------------------------- 5 2. Setup ----------------------------------------------------------------------------------------------------------------- 6 2.1 Contents in Box ----------------------------------------------------------------------------------------------- 6 2.2 Setup Stand & Base ------------------------------------------------------------------------------------------ 7 2.3 Adjusting Viewing Angle ------------------------------------------------------------------------------------ 7 2.4 Connecting the Monitor ------------------------------------------------------------------------------------- 8...

  • Page 4: Monitor Specifications

    Service Manual e2450Swd 1. Monitor Specifications 1.1 Product Features e2450Swd Model number Driving system TFT Color LCD 59.8cm diagonal Viewable Image Size 0.2715mm(H) x 0.2715mm(V) Pixel pitch Panel Video R, G, B Analog Interface & Digital Interface Separate Sync. H/V TTL Display Color 16.7M Colors...

  • Page 5: Factory Preset Mode

    Service Manual e2450Swd 1.2 Factory Preset Mode HORIZONTAL VERTICAL STANDARD RESOLUTION FREQUENCY(KHZ) FREQUENCY(KHZ) 640×480 @60Hz 31.469 59.940 640×480 @67Hz 35.000 66.667 640×480 @72Hz 37.861 72.809 640×480 @75Hz 37.500 75.000 Dos-mode 720×400 @70Hz 31.469 70.087 SVGA 800×600 @56Hz 35.156 56.250 SVGA 800×600 @60Hz...

  • Page 6: Setup

    Service Manual e2450Swd 2. Setup 2.1 Contents in Box Note: Not all signal cables (HDMI cables) will be provided for all countries and regions. Please check with the local dealer or AOC branch office for confirmation.

  • Page 7: Setup Stand & Base

    Service Manual e2450Swd 2.2 Setup Stand & Base Please setup or remove the base following the steps as below. Setup: Remove: 2.3 Adjusting Viewing Angle For optimal viewing it is recommended to look at the full face of the monitor, then adjust the monitor's angle to your own preference.

  • Page 8: Connecting The Monitor

    Service Manual e2450Swd Note: Do not touch the LCD screen when you change the angle. It may cause damage or break the LCD screen 2.4 Connecting the Monitor Cable Connections In Back of Monitor and Computer: 1. Power 2. Analog (DB-15 VGA cable) 3.

  • Page 9: Wall Mounting

    5. Reconnect the cables. Refer to the user's manual that came with the optional wall mounting arm for instructions on attaching it to the wall. Note : VESA mounting screw holes are not available for all models, please check with the dealer or official department of AOC.

  • Page 10: Operation Instructions

    Service Manual e2450Swd 3. Operation Instructions 3.1 Hotkeys Power Press the Power button to turn on/off the monitor. < Eco (DCR)/- Press the Eco key continuously to select the Eco mode of brightness and DCR/I-Care on when there is no OSD.

  • Page 11: Osd Setting

    Service Manual e2450Swd 3.2 OSD Setting Basic and simple instruction on the control keys. 1) Press the MENU-button to activate the OSD window. 2) Press - or + to navigate through the functions. Once the desired function is highlighted, press the MENU-button to activate it.

  • Page 12: Service Manual

    Service Manual e2450Swd Luminance 1. Press (Menu) to display menu. 2. Press to select (Luminance), and press to enter. 3. Press to select submenu, and press to enter. 4. Press to adjust.
  • Page 13 Service Manual e2450Swd 5. Press to exit.
  • Page 14 Service Manual e2450Swd Image Setup 1. Press (Menu) to display menu. 2. Press to select (Image Setup), and press to enter. 3. Press to select submenu, and press to enter. 4. Press to adjust.
  • Page 15 Service Manual e2450Swd 5. Press to exit. Color Setup 1. Press (Menu) to display menu. 2. Press to select (Color Setup) , and press to enter.
  • Page 16 Service Manual e2450Swd 3. Press to select submenu, and press to enter. 4. Press to adjust. 5. Press to exit.
  • Page 17 Service Manual e2450Swd Picture Boost 1. Press (Menu) to display menu. 2. Press to select (Picture Boost), and press to enter. 3. Press to select submenu, and press to enter. 4. Press to adjust.
  • Page 18 Service Manual e2450Swd 5. Press to exit. OSD Setup 1. Press (Menu) to display menu. 2. Press to select (OSD Setup), and press to enter.
  • Page 19 Service Manual e2450Swd 3. Press to select submenu, and press to enter. 4. Press to adjust. 5. Press to exit.
  • Page 20 Service Manual e2450Swd Extra 1. Press (Menu) to display menu. 2. Press to select (Extra), and press to enter. 3. Press to select submenu, and press to enter. 4. Press to adjust.
  • Page 21 Service Manual e2450Swd 5. Press to exit. Exit 1. Press (Menu) to display menu.

  • Page 22: Led Indicator

    Service Manual e2450Swd 2. Press to select (Exit), and press to enter. 3. Press to exit. 3.3 LED Indicator status LED Color Full Power Mode Green or Blue Active-off Mode Orange or Red...

  • Page 23: Interface Description

    Service Manual e2450Swd 4. Interface description 4.1 D-Sub 15pin Interface Pin No. Description Pin No. Description Video-Red Video-Green Ground Video-Blue N.C. N.C. DDC-Serial data Detect Cable H Sync GND-R V Sync GND-G DDC-Serial clock GND-B 4.2 DVI Interface Pin No.

  • Page 24: Lvds Pin Assignment

    Service Manual e2450Swd 4.3 LVDS pin assignment 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 25: Panel Feature

    Service Manual e2450Swd 5. Panel Feature LCM236HGE02A01130F(CMI： M236HGE-L20) is a 23.6‖ TFT Liquid Crystal Display module with WLED Backlight unit and 30Pins 2ch-LVDS interface. This module supports 1920 x 1080 Full HD mode and can display up to 16.7M colors.

  • Page 26: Absolute Max Ratings

    Service Manual e2450Swd 5.2 Absolute Maximum Ratings Absolute maximum ratings of the module are as follows: Value Item Symbol Unit Note Power Supply Voltage -0.3 Logic Input Voltage -0.3 +3.6 Light bar DC forward current Light bar Peak pulse current LED Reverse voltage ℃...

  • Page 27: Panel Block Diagram

    Service Manual e2450Swd 5.3.2. BACKLIGHT UNIT (LED matrix is 16S4P) : Parameter guideline for LED driving is under stable conditions at 25℃ (Room Temperature ): 5.4 Panel Block Diagram 5.5 OPTICAL CHARACTERISTICS (1)TEST CONDITIONS...
  • Page 28 Service Manual e2450Swd (2) OPTICAL SPECIFICATIONS...

  • Page 29: Block Diagram

    Service Manual e2450Swd 6. Block Diagram 6.1 LCD Block Diagram Monitor Block Diagram Panel LVDS DC-AC inverter Main Board AC-DC (5V/12V) Power Board D- SUB PC- DVI Key board AC supply /DDC /DDC 90V-264V Input signal 6.2 Main Board Block Diagram Main Board Block Diagram Crystal 14.318MHZ...

  • Page 30: Power Board Block Diagram

    Service Manual e2450Swd 6.3 Power Board Block Diagram Fuse smoothing Rectifier Transformer Rectifier capacitor AC input 100-240V Rectifier IC-PWM Switching Rectifier Power adapter Part Sense resistor regulating Photo Couple Sampling DC-AC Resonance NET High Voltage 12V DC Switching MOS Transformer...

  • Page 31: Software Flow Chart

    Service Manual e2450Swd 6.4 Software Flow Chart Software Flow Chart Start Initial_MCU Check if DataBuffer Is blank To Write default values Check if Sum is changed ? Brightness Contrast Language Read parameter_from Buffer InputType InputTimingStableCounter Init_GlobalVariables OsdCounter PowerDownCounter Initial_MCU Device...

  • Page 32: Circuit Schematic

    Service Manual e2450Swd 7. Schematic 7.1 Main Board 715G4502M 04.SCALER 02.INPUT VCC3.3 VCC3.3 SOG_DET VCC1.8 SOG_DET SOG_DET VCC1.8 05.PANEL INTERFACE EDID_WP AHS0 EDID_WP AHS0 AHS0 AVS0 AVS0 AVS0 PA[0..9] DDCSDA1 DDCSDA1 DDCSDA1 PA[0..9] PA[0..9] DDCSCL1 DDCSCL1 DDCSCL1 VGA_CABLE_DET VGA_CABLE_DET VGA_CABLE_DET PB[0..9]...
  • Page 33 Service Manual e2450Swd CN101 DET_VGA R102 100R 1/16W 5% VGA_CABLE_DET VGA_CABLE_DET 5 D-SUB 15P VGA_5V DDCSCL1 R101 DDCSCL_A DDCSCL1 100R 1/16W 5% VGA_5V VSIN0 BIN0- HSIN0 BIN0 R103 R104 R105 C102 GIN0- ZD101 BIN0 0R05 1/16W 0R05 1/16W 100R 1/16W 5%...
  • Page 34 Service Manual e2450Swd CN102 R127 DVI_CABLE_DET 5 JACK 100R 1/16W 5% DVI5V 3,5,7 VSY NC DET_DVI DVI5V SY NC GND SCL_DVI R128 100R 1/16W 5% D102 DDC SCL SDA_DVI R129 100R 1/16W 5% ESD_DVI BAV70 DDC SDA DVI5V R130 1K 1/16W 5%...
  • Page 35 Service Manual e2450Swd VCC1.8 U401 NT68660FG FB401 and FB402 is VCC1.8 7 PB[0..9] R402 NC/2K2 1/16W 5% NC==>3.3V use TO252 type PB[0..9] FB401 LVB3P R403 NC/2K2 1/16W 5% CVDD 300OHM U401 NT68660UFG FB402 is NC==>3.3V LVB3M LVBCKP and 1.8V LDO use SOT-223 type VCC3.3...
  • Page 36 Service Manual e2450Swd PA[0..9] PB[0..9] PA[0..9] PB[0..9] LVB3P CN408 LVA3P LVB3M CONN LVA3M LVBCKP LVB0M RXO0- LVACKP LVBCKM LVB0P RXO0+ LVACKM LVB2P LVB1M RXO1- LVA2P LVB2M LVB1P RXO1+ LVA2M LVB1P LVB2M RXO2- LVA1P LVB1M LVB2P RXO2+ LVA1M LVB0P LVA0P LVB0M...
  • Page 37 Service Manual e2450Swd VCC3.3 CN702 U701 AZ1117H-3.3TRG1 FB701 0 OHM +-5% 1/8W 3,4,5 INPUT OUTPUT VCC3.3 5 VCC3.3 ADJ/GND ON/OFF NC/CONN C701 R702 4K7 1/16W 5% 100N 16V +5V 3,4,5 CN701 R703 100R 1/16W 5% Adj_BACKLIGHT 5 C706 U702 VCC3.3...

  • Page 38: Power Board 715G4744P

    Service Manual e2450Swd 7.2 Power Board 715G4744P R929 100 OHM 1/4W BD901 C916 C928 F801 KBP208G R930 100 OHM 1/4W 2N2 500V 2N2 500V 0R05 1/4W +14.5V R903 100 OHM 1/4W R904 ZD901 250OHM2W MTZJ T-72 16B 80GL22T-3 C918 NC/470UF/25V...
  • Page 39 Service Manual e2450Swd FB802 D801 L801 CN803 +14.5V C801 47UH BEAD Q801 330uF 25V R804 C814 SK310B 100N 50V 10 OHM 1/8W APM8005KCTRG R801 C810 R815 10K 1/8W 0.47UF 50V R819 R820 R821 R822 160K 1/8W NC/CONN ON/OFF R814 10 OHM 1% 1/4W...
  • Page 40 Service Manual e2450Swd LOUT+ +5V1 LOUT- ROUT+ C621 220pF 50V ROUT- +5V1 R602 C604 C602 C603 10K 1/10W 5% C622 100uF 25V 0.47uF 16V 0.47uF 16V 220pF 50V R603 10K 1/10W 5% C609 1uF 16V NC/10K 1/10W 5% U601 R609...

  • Page 41: Key Board 715G4747K

    Service Manual e2450Swd 7.3 Key Board 715G4747K LED001 CN001 LBADC1 R001 2KOHM 1% 1/10W LBADC2 DC_POWERON R002 0R01 1/10W LED_1# LED_2# C001 C002 R003 2KOHM 1% 1/10W R004 1K 1/10W NC/0.1uF 50V NC/0.1uF 50V Wire Harness SGND SW005 SW004 SW003...

  • Page 42: Monitor Exploded View

    Service Manual e2450Swd 8. Monitor Exploded View...

  • Page 43: Maintainability

    Service Manual e2450Swd 9. Maintainability 9.1 Trouble Shooting Main Board--- No Power No power Check flow chart For the no power Press power key and look if the picture is normal Please reinsert and make sure the AC 100-240V is normal Reinsert or check the power section Check 5V-CN101, 3.3V-U103-2;...
  • Page 44 Service Manual e2450Swd No picture (LED orange) No picture heck flow chart for the no signal Check signal wire Replace signal wire Check U103 Vout=3.3V; U104-out=1.8V replaceU103,U104,Q104, &around device check X401 waveform replace X401 Check CN402-HS/VS waveform Check Correspondent component...
  • Page 45 Service Manual e2450Swd Power Board--- No Power 5V/12V Check flow chart Check CN901 For the no power 100-240V Check AC supply Check rectified voltage-C905 Check FuseF901/ BD901 L902/BD901/C901/C902 Check voltage of IC901-8pin check component R905/R920 Check T901(1-3)out-Vcc Check D901/R910/C911 Check IC901-drive out...
  • Page 46 Service Manual e2450Swd No Backlight of panel Check flow chart for the Check voltage of C804-16V Inverter No Backlight Open C804 voltage-16V Return check Power Check ON/OFFsignal After Power off, check Check main board C804/C811/Q805/Q806 Check IC801—11pin=5V After Power off, check...

  • Page 47: Equipments And Tools Requirement

    Service Manual e2450Swd Key Board--- OSD no working OSD is unstable or not Check flow chart working For the key board Is Key Pad Board connecting Connect Key Pad Board normally Is Button Switch normally Replace Button Switch Is Key Pad Board normally...

  • Page 48: Factory Mode Adjustment

    Service Manual e2450Swd 9.3 Factory mode adjustment After replacing the Main board and the Panel, Check if white-balance is within the specs, then re-writing DDC is necessary. Check for enter the Factory mode： Press button and hold, reinsert the Power cord, then, press MENU, the monitor will may enter Factory OSD Menu.

  • Page 49: Writing Ddc Program Step

    Service Manual e2450Swd 9.4 Writing DDC program step 1. Prepared the PC with Windows XP system, DDC recording device (12V) 2. Connect the DDC recording device and the PC through PC parallel port 3. setup―Port95nt‖ driver program to PC , 4.
  • Page 50 Service Manual e2450Swd...

  • Page 51: Bom List

    D-SUB CABLE 1500 E08901 389G402A15NHLP AC POWER CORD 1500 for America E09501 395G179J30PE38 FFC CABLE 30P 215mm 1.0MM 708GD015XWPJ03 AOC 40(1726 NA) H07G X2 LH 21 WOODEN PALLET 0.011 H07G X2 LH 22 WOODEN PALLET 0.001 J44G6002 S179 paper plate 0.033...
  • Page 52 Service Manual e2450Swd A15G1597101401 MAINFRAME A33G1181ABJ 2L0100 KNOB Function Button A33G1182 1 1C0100 POWER LENS FOR 50TH A34G2558AEDS2B0130 BEZEL A34G2559ABJ0DK0130 REAR_COVER AM1G1740 10125 SCREW AM1G1740 12125 SCREW CBPCCN2A1J4 CONVERSION G4502-M01-000-0040-4-120912 CN402 033G3802 6B Y L WAFER CN701 033G3802 9B Y L CONN 2.0 9P...
  • Page 53 Service Manual e2450Swd Q401 057G 417526 SMALLTRAN MMBT3906 -0.2A -40V SOT-23 Q705 057G 763940 MOSFET AO3401A SOT-23 R118 061G0402000 JY RST CHIPR MAX 0R05 OHM 1/16W YAGEO R407 061G0402000 JY RST CHIPR MAX 0R05 OHM 1/16W YAGEO R109 061G0402000 JY...
  • Page 54 Service Manual e2450Swd R130 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN R488 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN R487 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN R424 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN...
  • Page 55 Service Manual e2450Swd R721 061G0402472 JT RST CHIP 4K7 1/16W 5% TZAI YUAN R115 061G0402472 JT RST CHIP 4K7 1/16W 5% TZAI YUAN C109 061G0402750 JT RST 0402 75R 5% 1/16W C103 061G0402750 JT RST 0402 75R 5% 1/16W C106...
  • Page 56 Service Manual e2450Swd C712 065G040210412K F CAP 0402 100NF 10% 16V X7R C417 065G040210412K F CAP 0402 100NF 10% 16V X7R C402 065G040210412K F CAP 0402 100NF 10% 16V X7R C425 065G040210412K F CAP 0402 100NF 10% 16V X7R C701...
  • Page 57 J40G024N61526A RATING LABEL 1.02 J44GD01561501B00GS ARTWORK CARTON J45G990100010100SZ PROTECT BAG J52G1801 3 1A MYLAR FOR UB J70G24C161508B CD MANUAL e2450Swd KEPCCJB1 KEY BOARD LED001 081G 12 1F GH LED GREEN/YELLOW GHZYG603D2-5B LED001 081G 12 1F GP LED Yellow/Green GP32032M/G307-ZY-50-C CN001...
  • Page 58 Service Manual e2450Swd SW005 077G603S AI CJ TACT SWITCH AI 2PIN SEALED SW004 077G603S AI CJ TACT SWITCH AI 2PIN SEALED SW003 077G603S AI CJ TACT SWITCH AI 2PIN SEALED SW002 077G603S AI CJ TACT SWITCH AI 2PIN SEALED SW001...
  • Page 59 Service Manual e2450Swd D901 093G 60335 DIODE SR515 5A/150V DO-201AD D909 093G 60519 DIODE SR560-MK23 5A/60V DO-27 SECOS D905 093G 60519 DIODE SR560-MK23 5A/60V DO-27 SECOS D909 093G3006 1 1 31DQ06FC3 NIHON INTER D905 093G3006 1 1 31DQ06FC3 NIHON INTER...
  • Page 60 Service Manual e2450Swd R818 061G0805103 JT RST 0805 10K 5% 1/8W R801 061G0805103 JT RST 0805 10K 5% 1/8W R918 061G0805103 JT RST 0805 10K 5% 1/8W R805 061G0805104 JF RST CHIPR 100KOHM +-5% 1/8W FENGHUA R805 061G0805104 JT RST CHIPR 100KOHM +- 5% 1/8W TZAI YUAN...
  • Page 61 Service Manual e2450Swd R930 061G1206101 JF RST CHIPR 100 OHM +-5% 1/4W FENGHUA R910 061G1206101 JF RST CHIPR 100 OHM +-5% 1/4W FENGHUA R929 061G1206101 JF RST CHIPR 100 OHM +-5% 1/4W FENGHUA R912 061G1206101 JF RST CHIPR 100 OHM +-5% 1/4W FENGHUA...
  • Page 62 Service Manual e2450Swd C914 065G080510232K F CAP 0805 1000PF 10% 50V X7R C803 065G080510232K F CAP 0805 1000PF 10% 50V X7R C906 065G080510232K F CAP 0805 1000PF 10% 50V X7R C815 065G080510232K F CAP 0805 1000PF 10% 50V X7R C923...
  • Page 63 Service Manual e2450Swd C917 065G1206222B2K M Panasonic Assign 1206 2.2NF 10% 630V X7R C916 065G1206222B2K M Panasonic Assign 1206 2.2NF 10% 630V X7R C929 065G1206222B2K M Panasonic Assign 1206 2.2NF 10% 630V X7R D801 093G 60S509 T SCHOTTKY BR310 T/R 3A 100V SMB...
  • Page 64 Service Manual e2450Swd FB903 071G 55 29 FERRITE BEAD FB902 071G 55 29 FERRITE BEAD FB802 071G 55 29 FERRITE BEAD FB801 071G 55 29 X BEAD 3.5X2.2X0.8 45R 25% 3BDR3522-453A FB903 071G 55 29 X BEAD 3.5X2.2X0.8 45R 25% 3BDR3522-453A...
  • Page 65 Service Manual e2450Swd J812 095G 90 23 JUMP WIRE - - J809 095G 90 23 JUMP WIRE - - J909 095G 90 23 JUMP WIRE - - J811 095G 90 23 JUMP WIRE - - J805 095G 90 23 JUMP WIRE - -...

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