Energy Star e2450 Service Manual

23.6" lcd monitor

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23.6" LCD Monitor
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........................................24
4.1.Input Signal Connector..........................................24
4.2.Preset Display Modes...... ..........................25
4.3.Panel Specification...........................................26
5.Block Diagram............................................................28
5.1.Main Board.....................................................28
5.2.Power Board..................................................29
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
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
R FOR TH
UNIT WHEN S

Table of Contents

Page Description
SAFETY NOTICE
EQUIPMENT CONTAINING HIGH VOLTAGES.
6.Schematic..........................................................30
6.1.Main Board.......................................................30
6.2.Power Board....................................................35
6.3.Key Board....................................................37
7.PCB Layout.........................................................38
7.1.Main Board......................................................38
7.2.Power Board.....................................................40
7.3.Key Board........................................................42
8.Maintainability.....................................................43
8.2.Trouble Shooting.............................................44
10.Monitor Exploded View......................................50
11.BOM List......................................................51
AOC e2450Swdak
Horizontal Frequency
30 - 83kHz
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Summary of Contents for Energy Star e2450

  • Page 1: Table Of Contents

    23.6" LCD Monitor AOC e2450Swdak Horizontal Frequency 30 - 83kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.Schematic…………..….........30 Revision List.…...........……..2 6.1.Main Board..…….…...........30 Important Safety Notice.….…......……..3 6.2.Power Board..……….........35 1.Monitor Specification......………....4 6.3.Key Board..……….........37 2.LCD Monitor Description……….……………………..5 7.PCB Layout..………..........38 3.Operation Instruction.…………....……...6 7.1.Main Board………..…........38 3.1.General Instructions........…...6 7.2.Power Board….…..........40...
  • Page 2: Revision List

    Revision List Version Release Date Revision History TPV Model Name TDC2N26BAHA1DNE Initial release TDC2N26BAHA2DNE Aug.-30-2012 TDC2N26BAHA3DNE...
  • 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 part 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 1. Power 2. Analog (DB-15 VGA cable) 3. DVI 4. Audio 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. 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 9 Luminance Press (Menu) to display menu. Press to select (Luminance), and press to enter. Press to select submenu, and press to enter. Press to adjust.
  • Page 10 Press two times to exit.
  • Page 11 Image Setup Press (Menu) to display menu. Press to select (Image Setup), and press to enter. Press to select submenu, and press to enter. Press to adjust.
  • Page 12 Press two times to exit.
  • Page 13 Color Setup Press (Menu) to display menu. Press to select (Color Setup), and press to enter. Press to select submenu, and press to enter. Press to adjust.
  • Page 14 Press two times to exit.
  • Page 15 Picture Boost Press (Menu) to display menu. Press to select (Picture Boost), and press to enter. Press to select submenu, and press to enter. Press to adjust.
  • Page 16 Press two times to exit.
  • Page 17 OSD Setup Press (Menu) to display menu. Press to select (OSD Setup), and press to enter. Press to select submenu, and press to enter. Press to adjust.
  • Page 18 Press two times to exit.
  • Page 19 Extra Press (Menu) to display menu. Press to select (Extra), and press to enter. Press to select submenu, and press to enter.
  • Page 20 Press to adjust. Press two times to exit.
  • Page 21 Exit Press (Menu) to display menu. Press to select (Exit), and press to enter. Press two times to exit...
  • Page 22 LED Indicators Status LED Color Full Power Mode Green or Blue Active-off Mode Orange or red 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 23 Question Answer 1. Into the factory mode,set Burn in to OFF; e-sensor no power 2. Set e-sensor to ON. The detecting range is too near or far and the User is far away the interface show e-sensor monitor, reset the examination area. 1.
  • Page 24: Input/Output Specification

    4. Input/Output Specification 4.1 Input Signal Connector...
  • Page 25: Preset Display Modes

    .2 Preset Display Modes...
  • Page 26: Panel Specification

    4.3 Panel Specification 4.3.1 General Features TPM236WU-110 is a color active matrix TFT LCD module using amorphous silicon TFT's(Thin Film Transistors) as an active switching devices. This module has a 23.6 inchdiagonally measured active area with FHD resolutions (1920 horizontal by 1080 vertical pixel array). Each pixel is divided into RED, GREEN, BLUE dots which are arranged invertical stripe and this module can display 16.7M colors.
  • Page 27 2.Duration of rush current is about 2 ms and rising time of VDD is 520 μs ± 20 % LED array electrical characteristics Ta = 25 ±2℃ Note (1) LED light bar input voltage and current are measured by utilizing a true RMS multimeter as shown below: (2) PBL = IPIN ×...
  • Page 28: Block Diagram

    5. Block Diagram 5.1 Main Board 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] 02.D-SUB INPUT PB[0..9] PB[0..9] EDID_WP...
  • Page 29: Power Board

    5.2 Power Board Transformer Rectifier Bridge 14.5V EMI filter (T901) diodes Rectifier and Filter Start Resistor (R908,R911) Feedback PWM Control Circuit Power Switch LD7576AGR (U901) (Q901) Photo coupler Regulator (U902) (IC903) L801 D801 14.5V C809 MOSFET (Q801) (CN804) PWM Control ON/OFF OZ9998BGN (U801)
  • Page 30: Schematic

    6. Schematic 6.1 Main Board 715G4502M01000004C CN101 DET_VGA R102 100R 1/16W 5% VGA_CABLE_DET VGA_CABLE_DET 5 D-SUB 15P VGA_5V DDCSCL1 DDCSCL_A R101 DDCSCL1 100R 1/16W 5% VGA_5V VSIN0 BIN0- HSIN0 BIN0 R103 R104 R105 C102 GIN0- BIN0 ZD101 0R05 1/16W 0R05 1/16W 100R 1/16W 5% 47N16V B0+ 5...
  • Page 31 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% U104 ESD_DVI Q101 ESD_DVI...
  • Page 32 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] LVB3P FB401 R403 NC/2K2 1/16W 5% CVDD LVB3M 300OHM U401 NT68660UFG FB402 is NC==>3.3V LVBCKP LVBCKM VCC3.3 and 1.8V LDO use SOT-223 type LVB2P C401 C402...
  • Page 33 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 LVBCKM RXOC- LVA0M LVBCKP RXOC+ LVB3M...
  • Page 34 VCC3.3 CN702 U701 AZ1117H-3.3TRG1 FB701 0 OHM +-5% 1/8W 3,4,5 VCC3.3 5 INPUT OUTPUT 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 100N 16V C705 NC/G1117-33T43UF 100uF16V ON/OFF...
  • Page 35: Power Board

    6.2 Power Board 715G4744P02000001M R929 100 OHM 1/4W BD901 C916 C928 F801 KBP308G 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 680UF 25V T901 D901 POWER X'FMR SR515 R905...
  • Page 36 FB802 D801 L801 +14.5V C801 47UH BEAD Q801 330uF 25V R804 C814 SK310B 100N 50V 10 OHM 1/8W APM8005KCTRG R801 C810 10K 1/8W 0.47UF 50V ON/OFF R814 R815 R802 10 OHM 1% 1/4W C809 150K 1/8W R805 300K 1/8W C811 C802 33UF 100V 0.47UF 50V...
  • Page 37: Key Board

    6.3 Key Board 715G4747K02000001C 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 SW002 SW001 AUTO(2.0K) 1.118V LBADC1 DOWN...
  • Page 38: Pcb Layout

    7. PCB Layout 7.1 Main Board 715G4502M01000004I...
  • Page 40: Power Board

    7.2 Power Board 715G4744P02000001M...
  • Page 42: Key Board

    7.3 Key Board 715G4747K02000001C...
  • Page 43: 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 44: Trouble Shooting

    8.2 Trouble Shooting 1. 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 45 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 46 3. DIM DIM (image overlap, focus or flicker) The end Reset in factory mode 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 47 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 48: 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 49 C. Adjust Cool (9300K) color-temperature 1. Switch the Chroma-7120 to RGB-Mode (with press “MODE” button) 2. Switch the MEM. Channel to Channel 9 (with up or down arrow on chroma 7120) 3. The LCD-indicator on chroma 7120 will show x=283±20,y=297±20 4.
  • Page 50: Monitor Exploded View

    10. Monitor Exploded Views...
  • Page 51: Bom List

    11. BOM List Note: The parts information listed below are for reference only, and are subject to change without notice. Please go http://cs.tpv.com.cn/hello1.asp for the latest information. TDC2N26BAHA1DNE Location Part No. Description Remark 040G 58162435A MANUAL P/N LABEL 052G 2191 A PAPER TAPE HDCP-SMT 070GHDCP500HDC...
  • Page 52 E09501 S95G179T30PE38 FFC CABLE 30P 215mm 1.0MM H40G000261553A TCO'05 EPA LABEL 756GHBCB A5061 MAIN BOARD-CBPCAN2A1H3 U402 056G2233 11 FLASH Pm25LD020C-SCE 2M SIOC-8 SMTCA-U402 100GANMD009W11 MCU ASS'Y-056G2233 11 CN402 033G3802 6B Y WAFER CN701 033G3802 9B Y CONN 2.0 9P CN408 033G801930F CH FFC CONN 1.0mm 30P R/A 34mm 6mm R707...
  • Page 53 C433 067G 3051013PB EC 105C 100uF M 16V 5*11mm JH CD263 C716 067G 3051013PB EC 105C 100uF M 16V 5*11mm JH CD263 C710 067G 3051013PB EC 105C 100uF M 16V 5*11mm JH CD263 R002 061G0603000 FF RST CHIPR MAX0R01 1/10W FENGHUA R004 061G06031001FF RST CHIPR 1 KOHM +-1% 1/10W FENGHUA...
  • Page 54 R905 061G0805471 JT RST CHIPR 470OHM +-5% 1/8W TZAI YUAN R925 061G08059101FF RST CHIPR 9.1KOHM +-1% 1/8W FENGHUA RJ603 061G1206000 JT RST CHIPR MAX0R05 1/4W TZAI YUAN RJ605 061G1206000 JT RST CHIPR MAX0R05 1/4W TZAI YUAN RJ604 061G1206000 JT RST CHIPR MAX0R05 1/4W TZAI YUAN RJ803 061G1206000 JT RST CHIPR MAX0R05 1/4W TZAI YUAN...
  • Page 55 C803 065G080510232K CAP CHIP 0805 1N 50V X7R +/-10% C802 065G080510332K CAP CHIP 0805 10N 50V X7R +/-10% C915 065G080510332K CAP CHIP 0805 10N 50V X7R +/-10% C814 065G080510432K CAP CHIP 0805 0.1UF K 50V X7R C924 065G080510432K CAP CHIP 0805 0.1UF K 50V X7R C912 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10%...
  • Page 56 FB903 071G 55 29 FERRITE BEAD FB801 071G 55 29 FERRITE BEAD FB802 071G 55 29 FERRITE BEAD F903 084G 56 4 B FUSE 4A 250V F902 084G 56 4 B FUSE 4A 250V F901 084G 56 4 B FUSE 4A 250V ZD901 093G 39A6852T ZENER MTZJ22B 21.51V 0.5W DO-35...
  • Page 57 U703 056G 133 33AAC LDO AZ1117H-1.8TRE1 U401 056G 562369 SCALER NT68660UFG/B TQFP-100 U701 056G 563514 IC AZ1117H-3.3TRG1 1A/3.3V SOT223 U106 056G 662 52 ESD PROTECT AZC398-04S.R7G SOT23-6 U107 056G 662 52 ESD PROTECT AZC398-04S.R7G SOT23-6 U104 056G 662 52 ESD PROTECT AZC398-04S.R7G SOT23-6 U102 056G 662 52 ESD PROTECT AZC398-04S.R7G SOT23-6...
  • Page 58 R111 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R113 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R119 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R121 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R123 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN...
  • Page 59 R448 061G1206301 JT RST CHIPR 300 OHM +-5% 1/4W TZAI YUAN R449 061G1206301 JT RST CHIPR 300 OHM +-5% 1/4W TZAI YUAN C120 065G040210232K CAP 0402 1NF 10% 50V X7R C417 065G040210412K CAP 0402 100NF 10% 16V X7R C418 065G040210412K CAP 0402 100NF 10% 16V X7R C419 065G040210412K...
  • Page 60 C423 065G0805475A2K NO-SUGGEST CAP 0805 4.7UF 10% 10V X7R C421 065G0805475A2K NO-SUGGEST CAP 0805 4.7UF 10% 10V X7R C416 065G0805475A2K NO-SUGGEST CAP 0805 4.7UF 10% 10V X7R C413 065G0805475A2K NO-SUGGEST CAP 0805 4.7UF 10% 10V X7R C404 065G0805475A2K NO-SUGGEST CAP 0805 4.7UF 10% 10V X7R C401 065G0805475A2K NO-SUGGEST CAP 0805 4.7UF 10% 10V X7R...

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