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AOC e2440V Service Manual Download Page 47

 

47                                                                                                                  

8.2 Trouble Shooting 
1. No Power 

OK 

NG 

No power

 

Check power cable is 

tightened? 

Check Power “On/Off” 

is “On”? 

Re-plug the power cable 

Replace main board and check connections 

Check the LED 
indicate is OK? 

Check the AC power   

Replace the converter board 

OK 

NG 

OK 

NG 

NG 

Turn on the Power “On/Off” switch 

Replace key board and check connections 

NG 

Summary of Contents for e2440V

Page 1: ...s 6 3 2 Control Buttons and Connections 6 3 3 OSD Menu 8 4 Input Output Specification 25 4 1 Input Signal Connector 25 4 2 Factory Preset Display Modes 26 4 3 Panel Specification 27 5 Block Diagram 30...

Page 2: ...2 Revision List Version Release Date Revision History TPV Model Name A00 Aug 31 2010 Initial release TKAANT2BWWA1DNE TKAANT2BWWA2DNE A01 Jan 17 2011 Add new model TKAANT2BWWA3DNE...

Page 3: ...ay create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from AOC AOC assumes no liability express or implied arising o...

Page 4: ...080 60 Hz Plug Play VESA DDC2B CI Input Connector D Sub 15pin DVI D Input Video Signal Analog 0 7Vp p standard 75 OHM Positive DVI D Digital Interface TMDS Power Source 12Vdc 3A Power Consumption Acti...

Page 5: ...panel control logic brightness control logic and DDC The converter board will provide DC to DC Inverter voltage to drive the backlight of panel AC IN 100V 240V Monitor Block Diagram Converter board Fl...

Page 6: ...de e Sensor mode hot key may not be available in all models e Sensor The infrared sensor can detect if user is in front of monitor and adjust monitor brightness automatically to save power When it is...

Page 7: ...the monitor and connect the other end to the computer s D Sub port 3 Optional Requires a video card with DVI port Connect one end of the DVI cable to the back of the monitor and connect the other end...

Page 8: ...hold the MENU button while the monitor is off and then press power button to turn the monitor on To un lock the OSD press and hold the MENU button while the monitor is off and then press power button...

Page 9: ...9 Luminance Press Menu to display MENU Press Menu to display menu Press or to select Luminance and press to enter Press or to select submenu press to enter and press or to adjust Press to exit...

Page 10: ...from Digital register Eco mode Standard Standard Mode Text Text Mode Internet Internet Mode Game Game Mode Movie Movie Mode Sports Sports Mode Gamma Gamma1 Adjust to Gamma1 Gamma2 Adjust to Gamma 2 G...

Page 11: ...11 Image Setup Press Menu to display menu Press or to select Image Setup and press to enter Press or to select submenu press to enter and press or to adjust Press to exit...

Page 12: ...re Clock to reduce Vertical Line noise Phase 0 100 Adjust Picture Phase to reduce Horizontal Line noise H Position 0 100 Adjust the horizontal position of the picture V Position 0 100 Adjust the verti...

Page 13: ...13 Color Temperature Press Menu to display menu Press or to select Color Temperature and press to enter Press or to select submenu press to enter and press or to adjust Press to exit...

Page 14: ...7300K Recall Normal Color Temperature from EEPROM Cool 9300K Recall Cool Color Temperature from EEPROM sRGB Recall SRGB Color Temperature from EEPROM User Red Red Gain from Digital register Green Gre...

Page 15: ...15 Color Boost Press Menu to display menu Press or to select Color Boost and press to enter Press or to select submenu press to enter and press or to adjust Press to exit...

Page 16: ...e Nature Skin on or off Disable or Enable Nature Skin Mode Green Field on or off Disable or Enable Green Field Mode Sky blue on or off Disable or Enable Sky blue Mode AutoDetect on or off Disable or E...

Page 17: ...s Menu to display MENU Press or to select Picture Boost and press to enter Press or to select Bright Frame Select on to activate Picture Boost Press or to select submenu press to enter and press or to...

Page 18: ...Size Brightness 0 100 Adjust Frame Brightness Contrast 0 100 Adjust Frame Contrast H position 0 100 Adjust Frame horizontal Position V position 0 100 Adjust Frame vertical Position Bright Frame on or...

Page 19: ...19 OSD Setup Press Menu to display menu Press or to select OSD Setup and press to enter Press or to select submenu press to enter and press or to adjust Press to exit...

Page 20: ...ion 0 100 Adjust the horizontal position of OSD V Position 0 100 Adjust the vertical position of OSD Timeout 5 120 Adjust the OSD Timeout Transparence 0 100 Adjust the transparence of OSD Language Sel...

Page 21: ...21 Extra Press Menu to display menu Press or to select OSD Setup and press to enter Press or to select submenu press to enter and press or to adjust Press to exit...

Page 22: ...tal Sigal Source as Input Auto Config yes or no Auto adjust the picture to default Image Ratio wide or 4 3 Select wide or 4 3 format for display DDC CI yes or no Turn ON OFF DDC CI Support Off Timer 0...

Page 23: ...23 Reset Reset yes or no Reset the menu to default Press or to select Reset and press to enter Press Menu to display menu Press or to select YES or NO Press to exit...

Page 24: ...24 Exit Exit Exit the main OSD LED Indicator Status LED Color Full Power Mode Blue Active off Mode Orange Press Menu to display menu Press or to select Exit and press to enter...

Page 25: ...15 DDC Serial clock DVI connectors Pin No Signal Name Pin No Signal Name Pin No Signal Name 1 TMDS Data 2 9 TMDS Data 1 17 TMDS Data 0 2 TMDS Data 2 10 TMDS Data 1 18 TMDS Data 0 3 TMDS Data 2 4 Shie...

Page 26: ...0 600 72Hz 48 077 72 188 800 600 75Hz 46 875 75 XGA 1024 768 60Hz 48 363 60 004 1024 768 70Hz 56 476 70 069 1024 768 75Hz 60 023 75 029 XGA 1152x864 75Hz 67 5 75 XGA 1280x1024 60Hz 63 981 60 02 XGA 12...

Page 27: ...27 4 3 Panel Specification 4 3 1 General Features 4 3 2 Display Characteristics Ta 25 4 3 3 Electrical Characteristics Note1 Measurement conditions The duration of rising time of power input is 470us...

Page 28: ...28 Note1 LVDS signal waveform...

Page 29: ...29 Backlight Unit Ta 25 4 3 4 Optical Characteristics Ta 25...

Page 30: ...Board FLASH MEMORY Pm25LD020C U402 Scalar NT68668AUFG Include MCU ADC OSD etc U401 LCD Interface CN301 D Sub Connector CN101 H sync V sync RGB Crystal 12MHZ X401 DVI Connector CN102 Key Control Inter...

Page 31: ...906 PWM Control LD7750GS IC901 Transformer T901 AC input 12V 3A Bridge Rectifier and Filter Rectifier diodes Power Switch Q901 Photo coupler IC902 Regulator IC903 ZD801 PWM Control TA9690GN IC801 IC80...

Page 32: ...1 GND 2 I O2 3 I O3 4 VDD 5 I O4 6 DDC1_SCL 5 DDC1_SDA 5 DDC1_SDA VGA_B U105 AOZ8105CI I O1 1 GND 2 I O2 3 I O3 4 VDD 5 I O4 6 DDC_WP 5 U107 AOZ8105CI I O1 1 GND 2 I O2 3 I O3 4 VDD 5 I O4 6 FB102 0R0...

Page 33: ...8 NC 10K1 16W CN301 CONN 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 PANEL_VCC Q302 LMBT3904LT1G R304 22K 1 16W R305 10K 5 1 16W CMVCC1 C302 22UF 16V U301 NC...

Page 34: ...FB 4 GND 5 FREQ 6 VIN 7 BST 8 Thermal Pad 9 VCC3 3 11 30 2009 U701 VI 3 VO 2 GND 1 C723 10uF 25V C712 100nF 25V C719 100nF 25V CMVCC1 CN702 CONN 1 2 3 4 5 6 7 8 9 10 11 12 D707 SR34 1 2 D708 SR34 1 2...

Page 35: ...19 ADC_VAA FB401 0R05OHM1 8W 115 52 adj_BACKLIGHT CMVCC1 DSUB_R 2 DSUB_G 2 DSUB_G 2 DSUB_B 2 DSUB_SOG 2 DSUB_V 2 DSUB_B 2 DSUB_H 2 LED_GRN BLUE DDC1_SDA 2 LED_ORANGE DDC1_SCL 2 RX2P 2 RX2N 2 RX1P 2 RX...

Page 36: ...NC 9 NC 12 NC 16 NC 13 OUT L R606 NC 1K 1 16W 5 C608 NC 1000pF R603 NC 10K 1 16W 5 CN602 NC CONN 1 2 3 4 R609 NC 10K 1 16W 5 R601 NC 9K1 OHM 1 16W 5 OUT L R604 NC 10K 1 16W 5 R608 NC 10K 1 16W 5 5V_AU...

Page 37: ...3 BD901 KBP306G 05 2 1 3 4 R901 1 MOHM 5 1 4W R902 1 MOHM 5 1 4W C903 0 47UF R940 220 OHM 1 10W C908 2N2 500V L902 14mH 1 4 2 3 L903 0 8uH R918 20K 1 10W 5 C920 1U 25V L901 0 45mH 1 4 2 3 C918 680UF 2...

Page 38: ...ODEL Size Rev Date Sheet of TPV MODEL PCB NAME T P V Top Victory Electronics Co Ltd Key Component 1 A4 Thursday July 15 2010 ODM MODEL 02 CONVERTER R802 0 47OHM 1 1 4W R801 0 47 OHM 1 1 4W R842 R843 R...

Page 39: ...1CKI P1A OSC1 CLKIN 2 GP4 AN3 CIN1 T1G P1B OSC2 CLKOUT 3 GP3 T1G MCLR VPP 4 GP2 AN2 T0CKI INT COUT CCP1 P1A 5 GP1 AN1 CIN0 VREF ICSPCLK 6 GP0 AN0 CIN P1B ICSPDAT 7 VSS 8 VCC VCC_IN OEM MODEL Size Rev...

Page 40: ...Victory Electronics Co Ltd Key Component e2040V D N A B 2 2 Thursday Nov ember 05 2009 TBD 2 0 key TBD DOWN LBADC2 OK AUTO DOWN 2K UP 0 CONNECTOR MENU Power AUTO 2 0K LBADC1 0V 1 118V MENU LED SW002...

Page 41: ...41 7 PCB Layout 7 1 Main Board 715G4002M01000004S...

Page 42: ...42 7 2 Power Board Adapter Board 715G3980P02000003S...

Page 43: ...43 Coverter Board 715G3823P04000004S...

Page 44: ...44 7 3 Light Sensor Board 715G3995T01000004C...

Page 45: ...45 7 4 Key Board 715G4014K01000004C...

Page 46: ...ntainability 8 1 Equipments and Tools Requirement 1 Voltmeter 2 Oscilloscope 3 Pattern Generator 4 DDC Tool with an IBM Compatible Computer 5 Alignment Tool 6 LCD Color Analyzer 7 Service Manual 8 Use...

Page 47: ...is tightened Check Power On Off is On Re plug the power cable Replace main board and check connections Check the LED indicate is OK Check the AC power Replace the converter board OK NG OK NG NG Turn o...

Page 48: ...e Press the power button is OK Check the LVDS FFC cable or panel The end NG OK OK NG Replace the main board Replace the converter board Replace the LVDS FFC cable or panel NG The end Replace the key b...

Page 49: ...y mode Set to the optimal frequency select the recommended frequency Pull out signal cable and check Self Test Feature Check is ok Check the signal cable and the PC Readjust the phase and pixel clock...

Page 50: ...shift Replace the signal cable Pull out the signal cable and check the screen color display is normal The end Replace the signal cable or PC Reset the factory mode In the user mode set the color sett...

Page 51: ...ast max brightness Test conditions Center of display Video input RGB 0 700V for Analog Input Brightness control is set to min Contrast control is set to min 11 2 Patterns Testing Item Condition Resolu...

Page 52: ...ed pattern Green pattern or Blue pattern V Line 1 1920 x 1080 60 Hz 2 Black pattern or White pattern H Strip 1 1920 x 1080 60 Hz 2 Black pattern Gray scale pattern Red pattern Green pattern or blue pa...

Page 53: ...2 Gray scale pattern Gray defect 1 1920 x 1080 60 Hz 2 Gray scale pattern Video noise 1 1920 x 1080 60 Hz 2 Gray scale pattern Color tint 1 1920 x 1080 60 Hz 2 Gray scale pattern Gray scale failure 1...

Page 54: ...54 Light leakage 1 1920 x 1080 60 Hz 2 Black pattern or White pattern Fuzzy video 1 1920 x 1080 60 Hz 2 Pane picture...

Page 55: ...tem Windows 95 98 2000 XP 3 ISPTool programs 4 VGA cable LPT cable 5 ISP board PN 715GT034 B 715GT048 1 or715GT035 A 6 ISP Firmware Software 7 For example NOVATEK ICNT68668FGQFP 128 Step 2 Connection...

Page 56: ...front side ISP TOOL reverse side Step 3 Programming 1 Double click the icon to install Port95nt print driver 2 Install tool programme 2 1 decompress PS NT68168F Scale IC must use V4 566 version 2 2 D...

Page 57: ...57 3 ISP Tool 3 1 Choose writer as follow picture 3 2 Double click icon and run it 4 Click TOOL Option FE2P Mode Enable TOOL show...

Page 58: ...k tool Option choose Setup ISP tool and then choose LPT Port the next choose NVT Type default click Auto Detect to choose the appropriate speed Click Confirm change 6 Click Load File to use the proper...

Page 59: ...59 Click Auto to upgrade F W Appear the dialog box as follow open...

Page 60: ...60 Click Send MX2026 CMD Click AUTO when appear pass as follow picture that burning is successful AUTO...

Page 61: ...on snowflake point or no video with normal audio But picture is normal with PC source pls programming the HDCP code or replace the new main board Pls refer to the HDCP code programming as below Step5...

Page 62: ...For the monitor produced before 2008 01 01 please use 5Bytes_old_command exe for HDCP key For the monitor produced after 2008 01 01 please use 20Bytes new_command exe for HDCP key Step2 Click HDCP and...

Page 63: ...63 Step3 Make sure the red mark parts was selected Pls give notice to PE engineer if the number of the HDCP Key is less than 500 Open factory New order Connect one monitor...

Page 64: ...I of monitor display naturally Note Appear fault 1 Check whether the HDCP writer is correct Check the connection between PC Monitor and tool check whether the tool s power supply is useable 2 Try to a...

Page 65: ...65 Pls give a notice to PE engineers if the number of the HDCP Key is less than 500...

Page 66: ...e D SUB CABLE DVI CABLE and DVI to HDMI CABLE 5 12V Adapter 6 TPVDDCHDMI and TPVDDC6 0 7 PC 8 For example e2239Fwt Tool picture For VGA DVI BURNING DDC Board as the follow picture Install software Not...

Page 67: ...click the icon to install Port95nt print driver and then restart the computer Double click select Analog and DVI show as follow picture 2 Click Load file and select as follow picture then click LCDDDC...

Page 68: ...68 3 Click ok show as follow picture 4 Input same SN twice and date Click Pragram to burn When appear pass as follow picture that burning is successful...

Page 69: ...69 5 Click program Note Appear fault as follow please input SN twice and burning again...

Page 70: ...70 When appear pass as follow picture that burning is successful Click Read both show as follow picuture If read SN and model name are same as before inputing as before that burning is successful...

Page 71: ...of VGA and the connection of DVI Note If the burn software is unsuccessfulll appear fault 1 For VGA the resolution will be not the best achieve 2 For DVI No picture no sound If program failed in VGA...

Page 72: ...72 2 For DVI cut off the 14th pin the shortest pin power supply 3 Connect the EEPROM WP pin to ground...

Page 73: ...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 The LCD indicator on chroma...

Page 74: ...ove procedure item 4 5 6 until chroma 7120 RGB value meet the tolerance 100 2 D Adjust sRGB color temperature 1 Switch the chroma 7120 to RGB Mode with press MODE button 2 Switch the MEM channel to Ch...

Page 75: ...75 12 Monitor Exploded View...

Page 76: ...P A1253 260MM E09502 095G8022 7TE01 HARNESS 7P 6P 130MM E09505 095G802210TE01 HARNESS 10P A1253 10P A1253 90MM 0D1G1030 8120 screw 705GHA34030 2440 BASE ASS Y 705GHA34032 E2440VA REAR COVER_STAND ASS...

Page 77: ...3LFT1495 143M L901 073G 174515 H LINE FILTER 0 45mH MIN LCL 11006 HA L903 073G 253902 H IND CHOKE 0 8uH MIN DADON LED1 081G 2 3 1P LED GPG2603T R006 35A GUANGPU E08906 089G 171536 G DC CABLE 1000mm B...

Page 78: ...08 061G0402000 JY NO SUGGEST RST CHIPR MAX 0R05 OHM 1 16W R427 061G0402000 JY NO SUGGEST RST CHIPR MAX 0R05 OHM 1 16W R115 061G0402100 JY NO SUGGEST RST CHIPR 10 OHM 5 1 16W Y R111 061G0402100 JY NO S...

Page 79: ...00KOHM 5 1 16W YAGEO R415 061G0402104 JY RST CHIPR 100KOHM 5 1 16W YAGEO R306 061G0402104 JY RST CHIPR 100KOHM 5 1 16W YAGEO R135 061G0402104 JY RST CHIPR 100KOHM 5 1 16W YAGEO R434 061G0402105 JY RST...

Page 80: ...HM 5 1 4W FENGHUA C605 065G040210212K A CAP 0402 1NF 16V X7R C107 065G040210232K A CAP 0402 1NF K 50V X7R C118 065G040210232K A CAP 0402 1NF K 50V X7R C119 065G040210232K A CAP 0402 1NF K 50V X7R C607...

Page 81: ...0nF Z 16V Y5V C303 065G040222417Z A NO SUGGEST CAP CHIP 0402 220nF Z 16V Y5V C429 065G040222417Z A NO SUGGEST CAP CHIP 0402 220nF Z 16V Y5V C426 065G040227031J A CAP 0402 27PF 50V NPO C428 065G0402270...

Page 82: ...7Z Y NO SUGGEST CHIP 1206 22UF Z 16V Y5V C302 065G120622617Z Y NO SUGGEST CHIP 1206 22UF Z 16V Y5V FB604 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012 120T LF FB603 071G 56K121 M CHIP BEAD 120OHM 6A MGLB...

Page 83: ...JT RST CHIPR 470OHM 5 1 8W TZAI YUAN JR901 061G12060007JT RST CHIPR MAX 0R05 1 4W 1206 R908 061G1206101 JT RST CHIPR 100 OHM 5 1 4W TZAI YUAN R914 061G1206101 JT RST CHIPR 100 OHM 5 1 4W TZAI YUAN R9...

Page 84: ...JT RST CHIP 1R 1 10W 5 TZAI YUAN R832 061G0603109 JT RST CHIP 1R 1 10W 5 TZAI YUAN R831 061G0603109 JT RST CHIP 1R 1 10W 5 TZAI YUAN R830 061G0603109 JT RST CHIP 1R 1 10W 5 TZAI YUAN R829 061G0603109...

Page 85: ...04 JY RST CHIPR 100KOHM 5 1 16W YAGEO R013 061G0402472 JY RST CHIPR 4 7KOHM 5 1 16W YAGEO R018 061G0805330 JT RST CHIP 33R 1 8W 5 TZAI YUAN R023 061G0805330 JT RST CHIP 33R 1 8W 5 TZAI YUAN C020 065G0...

Page 86: ...10W FENGHUA R004 061G06031001FF RST CHIPR 1 KOHM 1 1 10W FENGHUA R001 061G06032001FF RST CHIP 2KOHM 1 1 10W FENGHUA R003 061G06032001FF RST CHIP 2KOHM 1 1 10W FENGHUA C001 065G060310432K A CAP CHIP 0...

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