AOC E2270SWHN Service Manual

AOC E2270SWHN Service Manual

21.5" lcd monitor
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21.5" LCD monitor
Service
Service
Service
Description
Table of Contents....................................................1
Revision List...................................................................2
Important Safety Notice.................................................3
1.Monitor Specification...................................................4
2.LCD Monitor Description.........................................5
3.Operation Instruction.................................................6
3.1.General Instructions.................................................6
3.2.Control Buttons and Connections...............................6
3.3.OSD Setting...............................................................8
4.Input/Output Specification.....................................12
4.1.Input Signal Connector..........................................12
4.2.Preset Display Modes...... ..........................13
4.3.Panel Specification..........................................14
5.Block Diagram...........................................................16
5.1.Main Board....................................................16
5.2.Power Board..................................................17
6.Schematic..........................................................19
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE
CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
R FOR TH

Table of Contents

Page Description
6.1.Main Board.......................................................19
6.2.Power Board....................................................25
6.3.Key Board....................................................29
7.PCB Layout.........................................................30
7.1.Main Board......................................................30
7.2.Power Board.....................................................32
7.3.Key Board........................................................35
8.Maintainability.....................................................36
8.2.Trouble Shooting.............................................37
10.Monitor Exploded View......................................46
11.BOM List......................................................47
SAFETY NOTICE
1
AOC E2270SWHN
Horizontal Frequency
30 - 83kHz
Page

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Summary of Contents for AOC E2270SWHN

  • Page 1: Table Of Contents

    21.5" LCD monitor AOC E2270SWHN Service Service Service Horizontal Frequency 30 – 83kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.1.Main Board..…….…...........19 Revision List.…...........……..2 6.2.Power Board..……….........25 Important Safety Notice.….…......……..3 6.3.Key Board..……….........29 1.Monitor Specification......………....4 7.PCB Layout..………..........30 2.LCD Monitor Description……….……………………..5 7.1.Main Board………..…........30...
  • Page 2: Revision List

    Revision List Version Release Date Revision History TPV Model Name HIF2T72BALACHNE Initial release HIF2T72BALA2HNE Sep.-21-2015 HIF2T72BALA3HNE Jan.-05-2016 HIF2T72BALA5HNE Add new model HIF4T72BALACHNE HIF4T72BALA2HNE Add new model Feb.-29-2016 HIF4T72BALA3HNE HIF4T72BALA5HNE HIFWT72BALACHNE Add new model Jun.-28-2016 HIFWT72BALA5HNE HIFWT72BALA2HNE Add new model Jul.-07-2016 HIFWT72BALA3HNE Add new model HIFWT72KALACHNE...
  • Page 3: Important Safety Notice

    Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service procedures recommended by AOC and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended.
  • Page 4: Monitor Specification

    1.Monitor Specifications...
  • Page 5: Lcd Monitor Description

    2.LCD Monitor Description The LCD MONITOR will contain a main board, a power board, and a key board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 6: Operation Instruction

    3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the monitor (See Figure ). By changing these settings, the picture can be adjusted to your personal preferences. * The power cord should be connected.
  • Page 7 To protect equipment, always turn off the PC and LCD monitor before connecting. 1 Connect the power cable to the AC port on the back of the monitor. 2 Connect one end of the 15-pin D-Sub cable to the back of the monitor and connect the other end to the computer's D-Sub port.
  • Page 8: Osd Setting

    3.3 OSD Setting Basic and simple instruction on the control keys. VGA+DVI: VGA+HDMI: VGA+HDMI+Earphone out: 1).Press the bottom key to activate the OSD window. 2). You can now select any one of the functions by quickly repeat-pressing the bottom key .
  • Page 9 1. Main menu will disappear if no action for about 3 seconds. 2. Sub menu will disappear if no action for about 3 seconds. 3. Before entering OSD menu, monitor will be powered off when continually pressing the bottom key for more than 3 seconds.
  • Page 10 Welcome to “i-Menu” software by AOC. i-Menu makes it easy to adjust your monitor display setting by using on screen menus instead of the OSD button on the monitor. To complete installation, please follow the installation guide. e-Saver Welcome to use AOC e-Saver monitor power management software! The AOC e-Saver features Smart Shutdown functions for your monitors, allows your monitor to timely shutdown when PC unit is at any status (On, Off, Sleep or Screen Saver);...
  • Page 11 You can click “RESET” to set the e-Saver to its default settings like below. Screen+ Welcome to "Screen+" software by AOC, Screen+ software is a desktop screen splitting tool, it splits the desktop into different panes, each pane displays a different window. You only need to drag the window to a corresponding pane, when you want to access it.
  • Page 12: Input/Output Specification

    4. Input/Output Specification 4.1 Input Signal Connector...
  • Page 13: Preset Display Modes

    4.2 Preset Display Modes...
  • Page 14: Panel Specification

    4.3 Panel Specification 4.3.1 General Features TPM215HW01-HGEL03 is a 21.5” TFT Liquid Crystal Display module with WLED Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1920 x 1080 Full HD mode and can display up to 16.7M colors. The converter module for Backlight is not built in.
  • Page 15 4.3.4 Optical Characteristics 25 ± 2 º C...
  • Page 16: Block Diagram

    5. Block Diagram 5.1 Main Board 715G7778M0B000004F Crystal 14.31818M LCD Interface (X401) (CN401) Scalar RTD2483BR-CG FLASH MEMORY Key Control MX25L4006EM1I-12G (Include :MCU,ADC,OSD etc) Interface (CN403) (U401) (U402) D-Sub HDMI PHONE JACK Connector Connector Connector (CN101) (CN501) (CN601)
  • Page 17: Power Board

    5.2 Power Board 715G6503P03011001C Transformer Rectifier Bridge EMI filter (T901) diodes Rectifier and Filter Start Resistor (R919, R920, R921, R922) PWM Control LNK6766V (U901) L801 D802 C809 MOSFET (Q801) (CN802) PWM Control ON/OFF OZ9998MGN (U801)
  • Page 18 715G7300P02...
  • Page 19: Schematic

    DDCA_SCL DDC_WP DDC_WP P[4] T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size E2270SWHN 絬 隔 瓜 絪 腹 G7778-M0A-000-0040-1-150521 TPV MODEL Key Component 2. D-SUB Interf ace PCB NAME 715G7778M0A0000040 称 爹 <称爹>...
  • Page 20 HDMI1_SCL AOZ8804DI DDC_WP P[4] T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size E2270SWHN 絬 隔 瓜 絪 腹 G7778-M0A-000-0040-1-150521 TPV MODEL Key Component 3. HDMI1 Interf ace PCB NAME 715G7778M0A0000040 称 爹 <称爹>...
  • Page 21 C406 NC/5pf F 16V V33TMDS Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size E2270SWHN 絬 隔 瓜 絪 腹 G7778-M0A-000-0040-1-150521 TPV MODEL Key Component 5. SCALER PCB NAME 715G7778M0A0000040 称 爹 <称爹>...
  • Page 22 LT-SCL LT-SCL ITLC ITLC T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size E2270SWHN 絬 隔 瓜 絪 腹 G7778-M0A-000-0040-1-150521 TPV MODEL Key Component 5. PANEL INTERFACE PCB NAME 715G7778M0A0000040 <称爹> 称 爹 Wednesday , July 29, 2015...
  • Page 23 2.2UF 16V Close to IC Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size E2270SWHN 絬 隔 瓜 絪 腹 G7778-M0A-000-0040-1-150521 TPV MODEL Key Component 7. Audio PCB NAME 715G7778M0A0000040 称 爹 <称爹>...
  • Page 24 4K7 1/16W 5% R711 22K 1/16W 5% T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom E2270SWHN 絬 隔 瓜 絪 腹 G7778-M0A-000-0040-1-150521 TPV MODEL Key Component 8. Power PCB NAME 715G7778M0A0000040 称 爹 <称爹>...
  • Page 25: Power Board

    6.2 Power Board 715G6503P03011001C 100 OHM 1/4W 1NF 500V R919 19V1 C915 T901 L902 R916 POWER X'FMR 1.1uH +19V 100 OHM 1/4W R917 100 OHM 1/4W BEAD R918 100 OHM 1/4W FB901 C916 C904 C917 R915 1000uF25V BD901 D901 680UF 25V 680UF 25V C906 470UF 25V...
  • Page 26 SR5100 L801 D802 FB802 47uH 19V1 FB801 For EMI 箇痙 BEAD C818 C801 220UF 25V BEAD R804 R814 R801 10 OHM 1/4W C810 10K 1/4W Q801 10 OHM 100N 50V EMBA2N10A C809 ON/OFF R823 C808 4.7UF 100V 0 OHM +-5% 1/8W R802 C802 1nF 50V...
  • Page 27 715G7300P02...
  • Page 29: Key Board

    6.3 Key Board 715G5985K01000001M CN001 LED001 POWER R001 100R 1/10W 5% LED_1# Wire Harness ZD002 SW001 ZD001 MLVS0603M04 MLVS0603M04 TSTAY B41 SGND SGND T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL PHILIPS V5 Size 絬...
  • Page 30: Pcb Layout

    7. PCB Layout 7.1 Main Board 715G7778M0B000004F...
  • Page 32: Power Board

    7.2 Power Board 715G6503P03011001C...
  • Page 34 715G7300P02001001C...
  • Page 35: Key Board

    7.3 Key Board 715G5985K01000001M...
  • Page 36: Maintainability

    8. Maintainability 8.1 Equipments and Tools Requirement Voltmeter. Oscilloscope. Pattern Generator. DDC Tool with an IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.
  • Page 37: Trouble Shooting

    8.2 Trouble Shooting No Power No power Check power cable is Re-plug the power cable tightened? Check Power “On/Off” Turn on the Power “On/Off” switch is “On”? Check the LED Check the AC power indicate is OK? Replace the converter board Replace main board and check connections Replace key board and check connections...
  • Page 38 2. No Video (Power LED Blue) No Video (Power LED Blue) Press the power Replace the main board button is OK? Replace the converter The end board Replace the main The end board and connection Replace the LVDS/FFC Check the LVDS/FFC cable or panel cable or panel Replace the key board...
  • Page 39 3. DIM DIM (image overlap, focus or flicker) Reset in factory mode The end Set to the optimal The end frequency, select the recommended frequency Readjust the phase and pixel The end clock in the user mode Pull out signal cable and Check the signal cable check “Self Test Feature and the PC...
  • Page 40 4. Color is not optimal Color is not optimal Color shift Miss color Reset the factory mode Replace the signal cable In the user mode, set the” color settings” until customer satisfy The end Pull out the signal cable and check the screen color display is normal? Replace the signal cable or PC Replace the main board...
  • Page 41: White-Balance,Luminance Adjustment

    9.White- Balance, Luminance Adjustment Approximately 30 minutes should be allowed for warm up before proceeding white balance adjustment. How to setting MEM channel you can reference to chroma 7120 user guide or simple use “SC” key and “NEXT” Key to modify xyY value and use “ID” key to modify the TEXT description Following is the procedure to do white-balance adjust .
  • Page 42 2.2.4 Tick then click 2.2.5 Enter user name and company name then click 2.2.6 Click 2.2.7 Tick then click to restart your computer.
  • Page 43 2.3 Connecting the Monitor: 2.4 Enter Factory: 2.4.1 Double-click to run DT_Toolbox.
  • Page 44 2.4.2 Choose “Information”. Confirm “DDC/CI Support” show “Yes”. If not, you can’t use DT Toolbox. 2.4.3 Choose “Raw”. 2.4.4 Input “6e 51 86 03 fe e1 a0 00 01”, then tick “Send or receive raw I2C data”, click “Send”. 2.4.5 Press the menu button of monitor to enter into the factory mode.
  • Page 45 3. Biase adjustment: Set the Contrast to 50; Adjust the Brightness to 90. 4. Gain adjustment: A. Adjust Warm (6500K) color-temperature 1. Switch the chroma-7120 to RGB-Mode (with press “MODE” button) 2. Switch the MEM.channel to Channel 3 (with up or down arrow on chroma 7120) 3.
  • Page 46: Monitor Exploded View

    10. Monitor Exploded Views...
  • Page 47: Bom List

    CARTON LABEL BARCODE 1 H40G0002615A52 LABEL Win8+EPA+EPEAT Sliver H40G000N61515A RATING LABEL 70 EU H44GB0621010DJ CUSHION H44GB0622010DJ CUSHION H44GB06261501B00HX ARTWORK CARTON E2270SWN WW H70G21C161514A CD MANUAL E2270PWHE E2270SWHN E2270SWDN KEPCCHB4 KEY BOARD PLPCFB401UHD1 ADAPTER BOARD G6503 Q12G630017600A00SI FOOT PAD Q15G1429E0110100B1 MAINFRAME Q34G7708ABJB6B0130 BEZEL L215W-W70-s1...
  • Page 48 E05201 Q52G100204500A00JY AL FOIL 756GHFCB0A7006010H MCU ASSY U402 056G2233 37 MX25L4006EM1I-12G 4Mb SOP-8 150 mil SMTCE-U402 100GARVI004W11 AOC E2270SWHN CBPCFT7A1H3 CONVERSION 715G7778-M0A-000-0040 CN601 088G 30214B YG PHONE JACK R/A 5P BLACK H=10 X401 093G 22 53CEC CRYSTAL S-F-14.31818M-32-3030-2085-30 CN406 311GF100B30ABL FFC CONN 1.0mm 30P R/A B1002F30TDHB...
  • Page 49 CN902 395GH25V07XM001000 HARNESS 7P(SCN)-7P(2008) 100mm PLEE401AHD1SMT ADAPTER BOARD FOR SMT T902 S80GL19P535V00 X'FMR 750UH 10% 15UH NA SMTCFT7A1H3 MAIN BOARD FOR SMT U601 056G 616516 AUDIO APA2176AQBITRG 0.27W TQFN3X3-16 U502 056G 662 21 ESD PROTECT AOZ8804DI DFN-10 U503 056G 662 21 ESD PROTECT AOZ8804DI DFN-10 U501 056G1133 34 1...
  • Page 50 R407 061G0402103 JT RST CHIP 10K 1/16W 5% TZAI YUAN R607 061G0402103 JT RST CHIP 10K 1/16W 5% TZAI YUAN R709 061G0402103 JT RST CHIP 10K 1/16W 5% TZAI YUAN R506 061G0402103 JT RST CHIP 10K 1/16W 5% TZAI YUAN R425 061G0402103 JT RST CHIP 10K 1/16W 5% TZAI YUAN...
  • Page 51 R105 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN R116 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN R101 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN FB105 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN R161 061G0603101 JT RST CHIP 100R 1/10W 5% TZAI YUAN...
  • Page 52 C408 065G040210412K CAP 0402 100NF 10% 16V X7R C714 065G040210412K CAP 0402 100NF 10% 16V X7R C715 065G040210412K CAP 0402 100NF 10% 16V X7R C427 065G040210412K CAP 0402 100NF 10% 16V X7R C614 065G040210412K CAP 0402 100NF 10% 16V X7R C401 065G040210412K CAP 0402 100NF 10% 16V X7R...
  • Page 53 FB404 071G 56121 TA CHIP BEAD 0805 120R/3A HCB2012KF-121T30 FB405 071G 56121 TA CHIP BEAD 0805 120R/3A HCB2012KF-121T30 FB411 071G 56K121 TA HIP BEAD 120R/6000mA HCB2012KF-121T60 FB604 071G 59C600 TA CHIP BEAD 0603 60R 25% 600mA FB602 071G 59C600 TA CHIP BEAD 0603 60R 25% 600mA FB601 071G 59C600 TA...
  • Page 54 ZD111 093G 39S940 T ZENER GLZ5.6B 5.6 0.5 MINI-MELF LL-34 ZD101 093G 39S940 T ZENER GLZ5.6B 5.6 0.5 MINI-MELF LL-34 ZD502 093G 39S940 T ZENER GLZ5.6B 5.6 0.5 MINI-MELF LL-34 U401 356G0562128D43 SCALER RTD2483BR-CG LQFP-128 U702 356G056351400C00HF LDO AZ1117CH- 3.3TRG1 1.35A 3.3V SOT-223 U504 356G066205200C ESD PROTECT AZC398-04S.R7G(cu) SOT-23-6...
  • Page 55 R807 061G1206100 JF RST CHIPR 10 OHM +-5% 1/4W FENGHUA R804 061G1206101 JF RST CHIPR 100 OHM +-5% 1/4W FENGHUA R915 061G1206103 JF RST CHIPR 10KOHM +-5% 1/4W FENGHUA R801 061G1206103 JF RST CHIPR 10KOHM +-5% 1/4W FENGHUA R908 061G1206105 JF RST CHIPR 1 MOHM +-5% 1/4W FENGHUA R907 061G1206105 JF...
  • Page 56 C910 067G215Y1007KT KY50VB10M-TP5 5*11.5 EG F901 084G 56 2 B FUSE 2.5A 250V SS-5-2.5A-AP D902 093G 60964 RECTIFIER PS1010R-AY-100A3 1A 1000V DO- C920 065G 1K470 2T6921 CAP CER 47pF K 1KV C902 065G306M1023WR CAP Y1 1NF 20% 250V Y5U FB901 071G 55 29 FERRITE BEAD F901...

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