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Summary of Contents for AOC AOC2241VG
- Page 1 Service Manual AOC2241VG LCD 显示器维修手册 Custom： Model： AOC2241VG...
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Page 2: Revision List
Service Manual AOC2241VG REVISION LIST Version Release Date Revision History Model TPV Model No Aug-30-2010 Initial Release AOC2241VG TC9GNT8NWVA1HNJ TC9GNTN8WVA1HNJ TC9GNTNYWVA1HNJ TC9GNTNBWVK2HNJ TC9SNTNYWVA1HNJ TC9GNTNMWVK2HNJ... -
Page 3: Table Of Contents
Service Manual AOC2241VG CONTENTS 1. LCD Specifications -------------------------------------------------------------------------------------------------------- 4 1.1 Product Features --------------------------------------------------------------------------------------------------------- 4 1.2 Factory Preset Timing -------------------------------------------------------------------------------------------------- 5 2. Operation Instruction ----------------------------------------------------------------------------------------------------- 6 2.1 Control Button ------------------------------------------------------------------------------------------------------------ 6 2.2 OSD Menu Adjusting ---------------------------------------------------------------------------------------------------- 7 2.3 OSD Lock Function ------------------------------------------------------------------------------------------------------ 10 3. -
Page 4: Lcd Specifications
Service Manual AOC2241VG 1. LCD Specifications 1.1 Product Features Monitor Model AOC2241VG Driving system TFT Color LCD 558.67mm（21.995inch） diagpnal Active Display Area 473.76mm (W)×296.15mm(H) LCD Panel Pixel Pitch 0.282 mm×0.282mm Display Colors 16.7M Colors Max. Resolution 1680 x 1050@60Hz R,G,B Analog Interface，75ohm,0.7V... -
Page 5: Factory Preset Timing
Service Manual AOC2241VG 1.2 Factory preset modes HORIZONTAL VERTICAL STANDARD RESOLUTION FREQUENCY FREQUENCY DOS-mode 720 × 400 31.469kHz 70.087Hz Mac-mode 832 ×624 49.725kHz 74.55Hz 31.469kHz 59.94Hz 640×480 640×480 35.00kHz 66.67Hz 640×480 37.861kHz 72.80Hz 640 × 480 37.50kHz 75.00Hz 800 × 600 35.16kHz... -
Page 6: Operation Instruction
Service Manual AOC2241VG 2. Operation instruction Generalization Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. -
Page 7: Osd Menu Adjusting
Service Manual AOC2241VG 2.2 OSD User mode adjustment a) OSD Menu adjustment steps: 1.Press MENU button to activate OSD window of as below, Press Left button or Right button may select other main Menu. 2. Press MENU button to adjust items of each main menu. - Page 8 Service Manual AOC2241VG...
- Page 9 Service Manual AOC2241VG...
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Page 10: Osd Lock Function
Service Manual AOC2241VG 2.3 OSD Lock Function Press “menu” and hold,with turn on “Power”, the OSD menu is locked. Again, the OSD menu is non-locked. For the OSD menu other function ,Please refer to “user manual” . -
Page 11: Interface Description
Service Manual AOC2241VG 3.Interface description 3.1 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... -
Page 12: Usb Interface
Service Manual AOC2241VG 3.3 USB(up+down) port Bottom View Top View... -
Page 13: Panel Feature
Service Manual AOC2241VG 4. Panel Feature The Panel-LM220WE1-TLP1 is a 22 inch wide TFT-LCD module with an intergral CCFL Backlght unit and a 30-pin 2ch –LVDS interface . This module supports 1680×1050 WSXGA+ resolution. and displays up to 16.7 millions colors.The converter module for the Backlight Unit is not built in. -
Page 14: Optical Characteristics
Service Manual AOC2241VG b) Backlight unit 4.4 Optical Specifications... -
Page 15: Tft Lcd Module Block Diagram
Service Manual AOC2241VG 4.5 TFT LCD Module Block Diagram 4.6 LCD module input terminal pin assignment Connector diagram... -
Page 16: Block Diagram
Service Manual AOC2241VG 5.Block Diagram 5.1 LCD Block Diagram Monitor Block Diagram 2 CCFL backlight Panel LVDS Memory DC-AC inverter Main Board AC-DC(5V/12V) Power Board PC- VGA PC- DVI Key board /DDC /DDC AC supply USB cable 90V-264V From PC Input signal 5.2 MainBoard Block Diagram---715G3737... -
Page 17: Power Board Block Diagram
Service Manual AOC2241VG 5.3 Power Board Block Diagram Power/ Board Block Diagram inverter Fuse Smoothing Rectifier Transformer Capacitor T901 Rectifier C907 AC input 100-240V Rectifier IC-PWM IC901 Q901 Rectifier Sense resistor Power part regulating PhotoCoupler Sampling Switching MOS DC-AC Resonance NET... -
Page 18: Lcd Software Flow Chart
Service Manual AOC2241VG 5.4 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... -
Page 19: Circuit Schematic
Service Manual AOC2241VG 6. Circuit Schematic 6.1 Main Board 1---715G3737-M01 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 20 Service Manual AOC2241VG Input part---VGA+DDC CN101 DET_VGA R102 100R 1/16W 5% VGA_CABLE_DET VGA_CABLE_DET 5 DB15 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 21 Service Manual AOC2241VG DVI-input+DDC R127 DVI_CABLE_DET 5 100R 1/16W 5% DVI5V CN102 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 10K 1/16W 5%...
- Page 22 Service Manual AOC2241VG Power part---5V+3.3V+1.8V+Vlcd VCC3.3 U701 AP2114H-3.3TRG1 FB701 3,4,5 VCC3.3 5 VCC3.3 0 OHM +-5% 1/8W C703 C704 100NF 25V C702 100NF 25V C701 R702 100uF16V 4K7 1/16W 5% 100NF 25V +5V 3,4,5 CN701 R703 100R 1/16W 5% Adj_BACKLIGHT 5 C706 VCC3.3...
- Page 23 Service Manual AOC2241VG Scarlar---Flash+key VCC1.8 FB401 CVDD 300OHM CN401 PB[0..9] PB[0..9] LVB3P R402 NC/2K2 1/16W 5% LVB3M R403 NC/2K2 1/16W 5% C401 C402 C403 LVBCKP VCC3.3 LVBCKM 100NF 25V 100NF 25V 100NF 25V LVB2P LVB2M LVB1P LVB1M FB402 LVB0P NC/CONN...
- Page 24 Service Manual AOC2241VG Output---LVDS connector 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...
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Page 25: Power Board
Service Manual AOC2241VG 6.2 Power Board 715G2892-P02-016--adapter 12V/5V R929 100 OHM 1/4W BD901 C916 L905 KBP208G R930 100 OHM 1/4W 0.001uF Coil +16V R903 100 OHM 1/4W ZD901 1000uF 25V Q904 MTZJ T-72 22B C918 KTD1028 D901 R905 FMX-12SL 0R05 1/10W 5%... -
Page 26: Invweter Part
Service Manual AOC2241VG 6.3 Inverter part---- R817 +16V 2R2 1/8W 5% Q805 ZD802 ON/OFF RLZ5.6B ZD803 G1 D1 RLZ5.6B R816 2R2 1/8W 5% R802 +5Vi CN801 R803 R804 PT801 CONN AO4620 5K1 1/8W 5% 5K1 1/8W 5% POWER X'FMR C819... -
Page 27: Key Board
Service Manual AOC2241VG 6.4 Key Board 715G4007-K01 LED_2# LED_1# LED01 CN001 LBADC2 R002 2K 1/10W 5% LBADC1 DC_POWERON R003 0R05 1/10W 5% LED_1# LED_2# C003 C004 R004 2K 1/10W 5% R005 1K 1/10W 5% NC/0.001uF NC/0.001uF SGND SW001 (2.0K) 1.435V LBADC2 1.042V... -
Page 28: Monitor Exploded View
Service Manual AOC2241VG 7.Explore Views... - Page 29 Service Manual AOC2241VG Institutions dismantling plan...
- Page 30 Service Manual AOC2241VG...
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Page 31: Pcb Layout
Service Manual AOC2241VG 8. PCB Layout 8.1 MainBoard 1- 715G3737-M01... - Page 32 Service Manual AOC2241VG...
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Page 33: Power Board
Service Manual AOC2241VG 8.2 PowerBoard 715G2892-P1B... -
Page 34: Keyboard
Service Manual AOC2241VG 8.3 KeyBoard ---715G4007... -
Page 35: Maintainability
Service Manual AOC2241VG 9. Maintenance Trouble treatment 9.1 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 9.2 Trouble Shooting Main Board---No Power... - Page 36 Service Manual AOC2241VG No picture (LED orange) No picture Check flow chart for the no signal Check signal wire Replace signal wire Check U701 Vout=3.3V; U703-out=1.8V,Vlcd=5V replaceU703,Q705,Q706, &around device check X401 waveform replace X401 Check CN101-RGB/HS/VS Check Correspondent component Check U402/U403 out...
- Page 37 Service Manual AOC2241VG 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 R908/R932 Check T901(1-3)out-Vcc Check D904/R913/C913 Check IC901-drive out...
- Page 38 Service Manual AOC2241VG No Backlight of panel Check flow chart for the Check 16V voltage？ Inverter No Backlight Open F801, voltage-16V Return check Power Check ON/OFFsignal After Power off,check Check main board C801/C802 ZD803 ZD804? Q805 Q806 Check IC801 -11pin=5V...
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Page 39: Roft Re-Wirting Step
Service Manual AOC2241VG 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? - Page 40 Service Manual AOC2241VG Step2：Setup 1. To install the printer driver software,”PORT95NT.exe； 2. To install the the Novatek tool “EasyUSB Eriter-V4.55”； Step3：Run After installation is complete,Run EasyUSB Eriter-V4.55，for figure as follows...
- Page 41 Service Manual AOC2241VG 1. Click “ISP ON”, Check the computer and monitor communications,OK; 2 Click “Option”,Tick “FE2P Mode Enable”, For the protection of HDCP key; adjust to speed; 3. Click “Option”,---Setup ISP tool, The figure appears as follows,select “LPT Port,...
- Page 42 Service Manual AOC2241VG 4. Click "Load File" to choose the right software, as shown below: 5. Click the "AUTO", automatic programming. The figure appears as follow, OK,...
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Page 43: Ddc Re-Wirting Step
Service Manual AOC2241VG 9.4 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 44 Service Manual AOC2241VG...
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Page 45: Factory Mode Osd
Service Manual AOC2241VG 9.5 Factory mode adjustment After replacing the Main board and the Panel, Check for enter the Factory mode ,then re-writing DDC is necessary. Step: Press MENU button and hold,reinsert the Power cord , then ,press MENU , the monitor will may enter Factory OSD Menu. - Page 46 Service Manual AOC2241VG Monitor AC power is turned off, for some time,turn on the power,,enter OSD , Restore factory settings...
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Page 47: Bom List
Service Manual AOC2241VG 10.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. 10.1 Model：TC9GNTNBWVK2HNJ Location Part number Description Remark 040G 581 26704... - Page 48 Service Manual AOC2241VG C433 067G 4051013PB EC 100uF M 16V 5*11mm C705 067G 4051013PB EC 100uF M 16V 5*11mm C702 067G 4051013PB EC 100uF M 16V 5*11mm SMTC9NTA1QYJ MAIN BOARD FOR SMT U401 056G 562327 IC Scaler NT68668AFG QFP-128 U701 056G 563224 IC LDO AP2114H-3.3TRG1 1A/3.3V SOT-223...
- Page 49 Service Manual AOC2241VG R138 061G0402100 JF RST CHIPR 10 OHM +-5% 1/16W FENGHUA 2nd source R137 061G0402100 JF RST CHIPR 10 OHM +-5% 1/16W FENGHUA 2nd source R136 061G0402100 JF RST CHIPR 10 OHM +-5% 1/16W FENGHUA 2nd source R135...
- Page 50 Service Manual AOC2241VG R424 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN R130 061G0402103 JF RST CHIPR 10KOHM +-5% 1/16W FENGHUA R429 061G0402103 JF RST CHIPR 10KOHM +-5% 1/16W FENGHUA 2nd source R444 061G0402103 JF RST CHIPR 10KOHM +-5% 1/16W FENGHUA...
- Page 51 Service Manual AOC2241VG R408 061G04024700FT RST CHIP 470R 1/16W 1% R408 061G04024700FY RST CHIP 470R 1/16W 1% 2nd source R142 061G0402471 JF RST CHIPR 470 OHM 5% 1/16W FENGHUA 2nd source R142 061G0402471 JT RST CHIP 470R 1/16W 5% TZAI YUAN...
- Page 52 Service Manual AOC2241VG C704 065G040210412K CAP CHIP 0402 100nF K 16V X7R C701 065G040210412K CAP CHIP 0402 100nF K 16V X7R C703 065G040210412K CAP CHIP 0402 100nF K 16V X7R C422 065G040210412K CAP CHIP 0402 100nF K 16V X7R C425...
- Page 53 Service Manual AOC2241VG C182 065G040222031J CAP CHIP 0402 22P 50V NPO +/-5% 2nd source C182 065G040222031J CAP CHIP 0402 22pF J 50V NPO C181 065G040222031J CAP CHIP 0402 22pF J 50V NPO C428 065G040222031J CAP CHIP 0402 22P 50V NPO +/-5%...
- Page 54 Service Manual AOC2241VG D101 093G 64 42 L DIODE LBAV70LT1G SOT-23 LRC D101 093G 64 42 P BAV70 SOT23 BY PAN JIT 2nd source D102 093G 64 42 P BAV70 SOT23 BY PAN JIT 2nd source ZD101 093G 39GA01 T RLZ5.6B...
- Page 55 Service Manual AOC2241VG R004 061G0603200 1F RST CHIPR 2 KOHM +-1% 1/10W LED01 081G 14501 GP LED GPTD1210YGC3-HB E715 715G4007K01000004F KEY PCB FR-4 106.5X14.5MM T1.6MM 2nd source E715 715G4007K01000004L KEY PCB FR-4 106.5X14.5MM T1.6MM PWPCC21GA1J POWER G2892-P02-016-001C-X-2-100414 GND1 009G6005 1...
- Page 56 Service Manual AOC2241VG CN902 095G 825 9W518 HARNESS 9P-9P 120MM 2nd source CN902 095G 825 9X518 HARNESS 9P(SCN)-9P(PLUG) 120MM 705GQ793081 D901/D906 ASS'Y 051G 200 1 OIL FOR DISAPPEAR D901 093G 52 66 DIODE FMX-12SL 10A/200V TO-220 2nd source D901 093G 52 69...
- Page 57 Service Manual AOC2241VG D906 093G 60526 SCHOTTKY MBRF1060CT ITO-220AB D901 093G 60916 Diode 10A/200V SP10200 ITO-220AB 2nd source 0M1G 930 8120 SCREW Q90G6264 5 HEAT SINK 705GQ857044 Q901 ASS'Y 051G 200 1 OIL FOR DISAPPEAR Q901 057G 600 35 STP8NK80ZFP...
- Page 58 Service Manual AOC2241VG R830 061G0603822 JF RST CHIPR 8.2KOHM 5% 1/10W FENGHUA R830 061G0603822 JT RST CHIP 8K2 1/10W 5% TZAI YUAN 2nd source RJ804 061G0805000 RST CHIP MAX 0R05 1/8W RJ803 061G0805000 RST CHIP MAX 0R05 1/8W R810 061G08051003FF...
- Page 59 Service Manual AOC2241VG R933 061G12066804FT RST CHIPR 6.8MOHM 1% 1/4W TZAI YUAN R932 061G12066804FT RST CHIPR 6.8MOHM 1% 1/4W TZAI YUAN R932 061G12066804FY RST CHIPR 6.8MOHM 1% 1/4W YAGEO 2nd source R933 061G12066804FY RST CHIPR 6.8MOHM 1% 1/4W YAGEO 2nd source...
- Page 60 Service Manual AOC2241VG IC903 056G 158 10 T IC AS431AZTR-E1 TO-92 BY AAC 2nd source IC903 056G 158 12 KIA431A-AT/P TO-92 Q904 057G 530503 T 2SD1207T Q904 057G 761 16 TRA KTD1028 KEC 2nd source R906 061G152M10452T NO-SUGGEST RST MOFR 100KOHM +-5% 2WS...
- Page 61 Service Manual AOC2241VG J810 095G 90 23 JUMPER WIRE J806 095G 90 23 JUMPER WIRE J604 095G 90 23 JUMPER WIRE FB602 095G 90 23 JUMPER WIRE C821 095G 90 23 JUMPER WIRE C819 095G 90 23 JUMPER WIRE 715G2892P02016001C POWER PCB 184X122X1.6MM FR-1 S/S 1OZ...