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Summary of Contents for AOC i2252VWH
- Page 1 Service Manual AOCi2252VW LCD 显示器维修手册 Custom： Model： i2252VWH 本手册适用于主板为 715G4641，Scalar IC NT68677 This manual applies to mainboard 715G4641，Scalar IC NT68677...
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Page 2: Revision List
Service Manual AOCi2252VW REVISION LIST Revision Editor Model Version Release Date TPV Model No History HIBGNZ6BAXK2DNJ Aug-18-2011 Initial Release AOCi2252VWH TPV-BJ-Rainsun... -
Page 3: Table Of Contents
Service Manual AOCi2252VW CONTENTS 1. LCD Specifications ..............................4 1.1 Product Features ............................... 4 1.2 Factory preset modes ............................5 1.3 New Features ..............................5 1.4 VGA 15pin Connector ............................. 6 1.5 DVI Connector ..............................6 1.6 HDMI interface .............................. -
Page 4: Lcd Specifications
Service Manual AOCi2252VW 1. LCD Specifications 1.1 Product Features Monitor Model AOC i2252VWH Driving system TFT Color LCD Active Display Area 476.64mm (W)×268.11mm(H) 546.86mm diagonal LCD Panel Pixel Pitch 0.2475 mm×0.2475mm Max. Resolution 1920 x 1080@60Hz Display Colors 16.7M Colors R,G,B Analog Interface，75ohm,0.7V... -
Page 5: Factory Preset Modes
Service Manual AOCi2252VW 1.2 Factory preset modes HORIZONTAL VERTICAL STANDARD RESOLUTION FREQUENCY FREQUENCY 640×480 31.469kHz 59.94Hz 35.00kHz 66.67Hz 640×480 37.861kHz 72.80Hz 640×480 640 × 480 37.50kHz 75.00Hz 640 × 480 31.469kHz 70.087Hz DOS-mode 720 × 400 31.469kHz 70.087Hz Mac-mode 832 ×624 49.725kHz 74.50Hz 800 ×... -
Page 6: Vga 15Pin Connector
Service Manual AOCi2252VW 1.4 VGA 15pin Connector Pin No. Description Pin No. Description Red Input +5VDC Green Input Logic GND Blue Input SDA- DDC-Serial Data Connection detect H Sync Red GND V Sync Green GND SCL- DDC-Serial Clock Blue GND VGA Connector layout 1.5 DVI Connector Pin No. -
Page 7: Hdmi Interface
Service Manual AOCi2252VW 1.6 HDMI interface Pin No. Description Pin No. Description TMDS Data2+ TMDS Clock Shield TMDS Data2 Shield TMDS Clock– TMDS Data2– TMDS Data1+ Reserved (N.C. on device) TMDS Data1 Shield TMDS Data1– TMDS Data0+ DDC/CEC Ground TMDS Data0 Shield +5 V Power TMDS Data0–... -
Page 8: Operation Instruction
Service Manual AOCi2252VW 2. Operation instruction 2.1 Connection Connect the video cable ②or③or④ from the video card of PC to the monitor.. The power cord ① should be connected , Audio input cable ⑤ can be connected Press the power button to turn on the monitor, the power indicator will light up. ... -
Page 9: Osd User Mode Adjustment
Service Manual AOCi2252VW 2.3 OSD User mode adjustment a) OSD Menu adjustment steps: +/ - 1. Press MENU to activate OSD main menu, Touch button may select other Menu item.. +/ - 2. Press MENU button to select items of each main menu.Touch to move and select. - Page 10 Service Manual AOCi2252VW...
- Page 11 Service Manual AOCi2252VW...
- Page 12 Service Manual AOCi2252VW b) hotkey OSD Menu as shown below AUTO Source selection Volume Clear vision mode...
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Page 13: Osd Locked
Service Manual AOCi2252VW 2.4 OSD Locked When press “ ” to switched on the monitor, while holding press the” menu” button, the menu will be locked. Again, the OSD menu is non-locked. -
Page 14: Panel Feature
Service Manual AOCi2252VW 3. Panel Feature LM215WF3 is a Color Active Matrix Liquid Crystal Display with a Light Emitting Diode ( White LED) backlight system without LED driver. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally black mode. -
Page 15: Electrical Characteristics
Service Manual AOCi2252VW 3.3 Electrical Characteristics LED array ELECTRICAL CHARACTERISTICS 3.4 TFT LCD Module Block Diagram... -
Page 16: Lcd Module Input Terminal Pin Assignment
Service Manual AOCi2252VW 3.5 LCD module input terminal pin assignment 3.6 LED connector Interface LED connector pin configuration CI1406M1HRB-NH on Backlight Unit... -
Page 17: Block Diagram
Service Manual AOCi2252VW 4.Block Diagram 4.1 LCD Block Diagram Monitor Block Diagram LED-bar backlight Panel LVDS Converter 715G4013 Main Board AC-DC(5V/12V) 715G4641 715G4750 Power Board PC- VGA PC- DVI HDMI Audio Key board /DDC /DDC Line in AC supply 90V-264V Input signal 4.2 MainBoard Block Diagram Panel Interface... -
Page 18: Power Board Block Diagram
Service Manual AOCi2252VW 4.3 Power Board Block Diagram MMD 21.5" LIPS Block Diagram AC Input Input Filter Bridge Rectification EMI Filter Condenser 2A 800V Rectifier Diode 5V Output Flyback (1)10A/60V Transformer (2)10A/200V 16V Output Adapter IC Power MOS LD7750RGR 8A/700V Feedback Circuit LED Light bar BOOST... -
Page 19: Software Flow Chart
Service Manual AOCi2252VW 4.4 Software Flow Chart Start Software Flow Chart Initial_MCU To Write default values Check if DataBuffer Is blank Check if Sum is changed ? Brightness Contrast Read parameter_from Buffer Language InputType InputTimingStableCounter OsdCounter Init_GlobalVariables PowerDownCounter Initial_MCU Device while PowerHandler if standby mode? -
Page 20: Circuit Schematic
VCC1.8 VCC1.8 7.POWER 4.SCALER T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL i2252Vwh Size 715G4641-M01-000-0040-1-110808 TPV MODEL 絬 隔 瓜 絪 腹 CBPCBNZK2J1 Key Component 1.1 COVER & REVISE HISTORY PCB NAME 715G4641-M01-000-0040 <称爹>... - Page 21 I/O2 I/O3 C118 100N16V AZC399-04S AZC399-04S T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size i2252Vwh 100N16V 715G4641-M01-000-0040-1-110808 TPV MODEL 絬 隔 瓜 絪 腹 CBPCBNZK2J1 Key Component 2. INPUT PCB NAME 715G4641-M01-000-0040 <称爹> 称爹...
- Page 22 OUT4 HDMI1_SDA AOZ8804DI HDMI1_SCL DDC_WP 5 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL i2252Vwh Size 715G4641-M01-000-0040-1-110808 TPV MODEL 絬 隔 瓜 絪 腹 CBPCBNZK2J1 Key Component 3. HDMI PCB NAME 715G4641-M01-000-0040 <称爹> 称爹...
- Page 23 C750 R719 100N16V 4K7 1/16W 5% T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size i2252Vwh 絬 隔 瓜 絪 腹 715G4641-M01-000-0040-1-110808 TPV MODEL CBPCBNZK2J1 Key Component 7. POWER PCB NAME 715G4641-M01-000-0040 <称爹> 称爹...
- Page 24 NC/100R 1/16W 5% CN410,CN411 P34* NC/CONN NC/7PIN T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL i2252Vwh Size 715G4641-M01-000-0040-1-110808 TPV MODEL 絬 隔 瓜 絪 腹 CBPCBNZK2J1 MCU-Scarlar NT68677 Key Component 4. SCALER PCB NAME 715G4641-M01-000-0040 <称爹>...
- Page 25 2011/2/11 LT-SDA LT-SCL LT-SCL T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size i2252Vwh 715G4641-M01-000-0040-1-110808 TPV MODEL CBPCBNZK2J1 絬 隔 瓜 絪 腹 Key Component 5. PANEL INTERFACE PCB NAME 715G4641-M01-000-0040 <称爹> 称爹 Monday , August 15, 2011...
- Page 26 1uF 10V NC/0R05 1/16W Audio_SD FB606 120 OHM T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL i2252Vwh Size 715G4641-M01-000-0040-1-110808 TPV MODEL 絬 隔 瓜 絪 腹 CBPCBNZK2J1 Key Component 6. AUDIO PCB NAME 715G4641-M01-000-0040 称爹...
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Page 27: Power Board 715G4750-P02
Service Manual AOCi2252VW 5.2 Power Board 715G4750-P02 --adapter 16V/5V 4 7 O HM 1/4 W R9 01 C901 C924 BD901 D2SB80 R90 2 4 7 O HM 1/4 W 2N2 500V 2N2 500V FB901 R93 7 NC Coil T901 L902 POWER X'FMR BEAD R90 3... -
Page 28: Converter Board Layout
Service Manual AOCi2252VW 5.3 Converter Board 715G4013-P02 CN805 D801 L801 CN801 +14.5V 22uH Q806 F801 APM8005K 3A/100V CONN C809 0R05 4A 1/4W 100uF 50V R801 R805 C807 C803 ON/OFF 300K +-1% 1/8W U801 33UF 100V 470N 25V 10 OHM 1% 1/4W MP3389EF R839 Q801... -
Page 29: Key Board 715G4851K
Service Manual AOCi2252VW 5.4 Key Board 715G4851k ZD002 LED001 MLVS0603M04 ZD003 SGND MLVS0603M04 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 0.1uF 50V 0.1uF 50V JR001 0 OHM +-5% 1/8W R004 CONN 1K 1/10W... -
Page 30: Monitor Exploded View
Service Manual AOCi2252VW 6. Monitor exploded view... -
Page 31: Pcb Layout
Service Manual AOCi2252VW 7. PCB Layout 7.1 MainBoard 715G4641-M01... - Page 32 Service Manual AOCi2252VW...
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Page 33: Powerboard 715G4750-P02
Service Manual AOCi2252VW 7.2 PowerBoard 715G4750-P02... - Page 34 Service Manual AOCi2252VW...
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Page 35: Converter Board 1-715G4013P02
Service Manual AOCi2252VW 7.3 Converter Board 1-715G4013P02... -
Page 36: Keyboard715G4851
Service Manual AOCi2252VW 7.4 KeyBoard715G4851... -
Page 37: Maintenance
Service Manual AOCi2252VW 8. Maintenance 8.1 Maintainability Requirement Voltmeter. & digital multimeter Oscilloscope. Pattern Generator. DDC Tool with Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual. repair tools etc 8.2 Disassembly SOP appropriate tools Phillips screwdriver spacer screwdriver C/D Disassembly Tool Gloves or soft cloth Prepare soft cloth and sponge... - Page 38 Service Manual AOCi2252VW Disassembly SOP 按下，分离支架 Separation Stand 后壳 Rear 拆卸螺钉×4 Remove screws...
- Page 39 Service Manual AOCi2252VW...
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Page 40: Trouble Shooting
Service Manual AOCi2252VW 8.3 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-CN404, 3.3V-U404-2;... - Page 41 Service Manual AOCi2252VW No picture (LED orange) No picture Check flow chart for the no signal Check signal wire Replace signal wire Check U404 Vout=3.3V; Q409-out=1.8V replaceU404,Q409,Q410,Q405 &around device check X401 waveform replace X401 Check CN101-RGB/HS/VS Check Correspondent component Check U402/U403 out Updata soft data Replace U401 Whitescreen...
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Page 42: Power Board
Service Manual AOCi2252VW Power Board--- No Power 5V/12V Check flow chart Check CN901 100-240V？ For the no power Check AC supply Check rectified voltage-C907 checkFuseF901/ rectified device L902/BD901/C901/C902 Check voltage of IC901-8pin check component R904/R932 Check T901(1-3)out-Vcc Check D901/R909/C903 Check IC901-drive out Check/replace IC901 Check MOS-Q901pin(G/D) Check R910/R938/Q901/T901pri... - Page 43 Service Manual AOCi2252VW No Backlight of panel Check flow chart for the Check voltage of F801-12V？ Inverter No Backlight Open F801, voltage-12V Return check Power Check ON/OFFsignal After Power off,check Check main board C801/C802？Q824? Check IC801 -12pin=12V pinRT waveform? After Power off,check Q805/Q808/R804/C825 Check IC801-6pin RT waveform? Check aroud component...
- Page 44 Service Manual AOCi2252VW Key Board--- OSD no working Check flow chart OSD is unstable or not For the key board working Connect Key Pad Board Is Key Pad Board connecting normally? Is Button Switch normally? Replace Button Switch Is Key Pad Board normally? Replace Key Pad Board Check Main Board...
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Page 45: Software Update Step
Service Manual AOCi2252VW 8.4 Software update step Product information 756GJBCB AK002 00 MCU ASS'Y mainboard CBPCBNZK2J1 U402 056G2233501 FLASH MX25L2026DM1I-12G 2Mb SOP-8 SMTCB-U402 100GANGI001B11 AOC_i2252Vwh_NT68677_LPL_LM215WF3_SLC1 CBPCBNZK2J1 CONVERSION G4641-M01-000-0040-1-110808 Step1：Connection 1. Connect one end of the USB line cable to the PC, the other to connect the ISP tool（715GT089-B ） ； 2. - Page 46 Service Manual AOCi2252VW...
- Page 47 Service Manual AOCi2252VW Step3:Run 1.To Run TOOL : In the "Start" – ”program "in the writer icon, , as shown , “ “ 2.Click “Option” FE2P Mode Enable” TOOL 默认为 √”, withhold HDCP KEY, select “setup ISP tool”,---“FTDI”,”Confirm Change”,The figuer is as follows...
- Page 48 Service Manual AOCi2252VW...
- Page 49 Service Manual AOCi2252VW Click “Option”，select WP pin, The figuer is as follows...
- Page 50 Service Manual AOCi2252VW 4.click “ISP ON”, The figuer is as shown,OK ; 5.Click “ ”, “Load File” Find software file, The figuer is as follows...
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Page 51: Re-Writing Ddc Program Step
Service Manual AOCi2252VW 6.Click“Auto”, Start Programming, until the successful ;The figuer is as follows 8.5 Re-Writing DDC program step After replacing the Main board and the Panel, Check if white-balance is within the specs ,then re-writing DDC is necessary. 1. Prepared the PC with Windows XP system, DDC recording device (12V)for figure below 2. - Page 52 Service Manual AOCi2252VW...
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Page 54: Factory Mode Adjustment
Service Manual AOCi2252VW 8.6 Factory mode adjustment After replacing the Main board and the Panel, Check for enter the Factory mode ,then re-writing DDC is necessary. Step: In normal display mode, unplug the power cord to shut down。Then Press “MENU” button and hold, At the same time plug the power cord to turned on the Power , Then, click the menu button,the monitor will may enter Factory OSD Menu. - Page 55 Service Manual AOCi2252VW...
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Page 56: Bom List
Service Manual AOCi2252VW 9.BOM List Note: The parts information listed below are for reference only, and are subject to change without notice. Please go to http://cs.tpv.com.cn/hello1.asp for the latest information. 9.1 Model：HIBGNZ6BAXK2DNJ Location Part number Description Remark 040G 581 26704 SHIPPING LABEL 2nd source 040G 581689 4A... - Page 57 Service Manual AOCi2252VW C908 067G215S3316LV EC 330uF 35V M 10*12.5mm C927 067G215S3316LV EC 330uF 35V M 10*12.5mm L901 073G 174192 H LINE FILTER 30MH MIN LCL-12012 HA L901 073G 174192 X LINE FILTER 30MH MIN 3TRET20-303M-1 L903 073G 253 91 H IND CHOKE 3.5uH+-10% DADONG L902 073G 253 91 H...
- Page 58 Service Manual AOCi2252VW R926 061G08054701FF RST CHIPR 4.7KOHM +-1% 1/8W FENGHUA R926 061G08054701FT RST CHIP 4K7 1/8W 1% R933 061G0805511 JF RST CHIPR 510OHM +-5% 1/8W FENGHUA R933 061G0805511 JT RST CHIPR 510OHM +-5% 1/8W TZAI YUAN 2nd source R927 061G08059101FF RST CHIPR 9.1KOHM +-1% 1/8W FENGHUA 2nd source...
- Page 59 Service Manual AOCi2252VW C926 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% 2nd source C923 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% 2nd source C917 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% C912 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% C919 065G080533332K CAP 0805 33NF K 50V X7R...
- Page 60 Service Manual AOCi2252VW J913 095G 90 23 JUMPER WIRE J912 095G 90 23 JUMPER WIRE J911 095G 90 23 JUMPER WIRE J910 095G 90 23 JUMPER WIRE J909 095G 90 23 JUMPER WIRE J907 095G 90 23 JUMPER WIRE J908 095G 90 23 JUMPER WIRE J917...
- Page 61 Service Manual AOCi2252VW R844 061G0805000 JT RST 0805 0.05R MAX 1/8W R843 061G0805000 JT RST 0805 0.05R MAX 1/8W R842 061G0805000 JT RST 0805 0.05R MAX 1/8W R841 061G0805000 JT RST 0805 0.05R MAX 1/8W R815 061G08051001FT RST CHIP 1K 1/8W 1% R811 061G08051001FT RST CHIP 1K 1/8W 1%...
- Page 62 Service Manual AOCi2252VW CN604 033G3802 4B Y CONNECTOR 4P 2.0 CN404 033G3802 6B Y WAFER CN701 033G3802 9B Y CONN 2.0 9P CN408 033G801930F CH JS FFC CONN 1.0mm 30P R/A 34mm 6.3mm R710 061G152M47964E SY RST MOFR 4.7 OHM +-5% 2WS FUTABA 105 度...
- Page 63 Service Manual AOCi2252VW R435 061G0402000 JT RST CHIPR MAX0R05 1/16W TZAI YUAN R425 061G0402000 JT RST CHIPR MAX0R05 1/16W TZAI YUAN R414 061G0402000 JT RST CHIPR MAX0R05 1/16W TZAI YUAN R142 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN R141 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN...
- Page 64 Service Manual AOCi2252VW R403 061G0402104 JT RST CHIP 100K 1/16W 5% TZAI YUAN R419 061G0402104 JT RST CHIP 100K 1/16W 5% TZAI YUAN R618 061G0402104 JT RST CHIP 100K 1/16W 5% TZAI YUAN R620 061G0402104 JT RST CHIP 100K 1/16W 5% TZAI YUAN R721 061G0402104 JT RST CHIP 100K 1/16W 5% TZAI YUAN...
- Page 65 Service Manual AOCi2252VW R624 061G0402751 JT RST CHIP 750R 1/16W 5% TZAI YUAN R459 061G0402752 JT RST CHIP 7K5 1/16W 5% TZAI YUAN R614 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN R613 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN R117 061G0603000 JT RST CHIP MAX 0R05 1/10W TZAI YUAN...
- Page 66 Service Manual AOCi2252VW C419 065G0402105A5K CAP 0402 1UF 10% 10V X5R C625 065G0402105A5K CAP 0402 1UF 10% 10V X5R C623 065G0402105A5K CAP 0402 1UF 10% 10V X5R C614 065G0402105A5K CAP 0402 1UF 10% 10V X5R C612 065G0402105A5K CAP 0402 1UF 10% 10V X5R C611 065G0402105A5K CAP 0402 1UF 10% 10V X5R...
- Page 67 Service Manual AOCi2252VW FB401 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB403 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB402 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB409 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB408 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB406...
- Page 68 MIDDLE TAPE FOR CARTON J52G1001 18 2A ALUMINIUM TAPE-140*40 J52G1801 52 1 Mylar J52G1801 52 2 Mylar J70G22C1615 4A CD Manual i2252Vwh KEPCBJA8 KEY BOARD G4851-K01-000-0010-2-20110330 CN001 033G3802 6H WAFER 6P RIGHT ANGLE PITCH 2.0 CN001 033G3802 6H L CONNECTOR 6PIN...