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Manual
21.5" LCD Color 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.Hot Keys......................................................6
3.3.OSD Setting.......................................................7
4.Input/Output Specification.......................................20
4.1.Input Signal Connector.........................................20
4.2.Factory Preset Display Modes...............................21
4.3.Panel Specification.............................................22
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
Table of Contents
Page
Description
5.Block Diagram............................................25
6.Schematic.......................................................26
6.1.Main Board....................................................25
6.2.Key Board......................................................31
7.PCB Layout.....................................................32
7.1.Main Board....................................................32
7.2.Key Board....................................................34
8.Maintainability..................................................35
8.1.Equipments and Tools Requirement...............35
8.2.Trouble Shooting.........................................36
9.White-Balance, Luminance Adjustment.............40
10.Monitor Exploded View.................................42
11.BOM List..................................................44
SAFETY NOTICE
AOC E2251SWDN
Horizontal Frequency
30-83KHz
Page
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Summary of Contents for AOC E2251SWDN
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Page 1: Table Of Contents
21.5" LCD Color Monitor AOC E2251SWDN Service Service Service Horizontal Frequency 30-83KHz Table of Contents Description Page Description Page 5.Block Diagram……..…………....25 Table of Contents..……......……..1 6.Schematic……………........26 Revision List.…........…………..2 6.1.Main Board………...........25 Important Safety Notice.……......……..3 6.2.Key Board...……..........31 1.Monitor Specification......………..4 7.PCB Layout..…………........32 2.LCD Monitor Description……………………………..5 7.1.Main Board………...........32... -
Page 2: Revision List
Revision List Version Release Date Revision History L&T Model Name TIBJT32CB7SUHNF.LF Jun-5-2012 Initial Release TIBJT32KB7A1HNF.LF TIBJT32CB7JBHNF.LF TIBJT32EB7RMHNF.LF AUG-20-2012 Add new models TIBJT32EB7SPHNF.LF... -
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 and a key board which house the flat panel control logic, brightness control logic and DDC. Monitor Block Diagram Flat Panel and LED Drive. LED backlight Main Board Key Board D-SUB Adapter... -
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. By changing these settings, the picture can be adjusted to your personal preferences. 3.2 Hotkeys Power Press the Power button to turn on/off the monitor. -
Page 7: Osd Setting
3.3 OSD Setting Basic and simple instruction on the control keys. 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 sub-menu . Once the desired function is highlighted, press MENU-button to activate Press to change the settings of the selected function. - Page 8 Luminance Press (Menu) to display menu Press to select (Luminance), and press to enter Press to select submenu, and press to enter.
- Page 9 Press to adjust Press to exit...
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Page 10: Image Setup
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 11 Press to exit Clock 0-100 Adjust picture Clock to reduce Vertical-Line noise. Phase 0-100 Adjust Picture Phase to reduce Horizontal-Line noise Sharpness 0-100 Adjust picture sharpness H.Position 0-100 Adjust the horizontal position of the picture. V.Position 0-100 Adjust the vertical position of the picture. Color Setup Press (Menu) to display menu.
- Page 12 Press to select submenu, and press to enter. Press to adjust. Press to exit...
- Page 13 Warm Recall Warm Color Temperature from EEPROM. Normal Recall Normal Color Temperature from EEPROM. Cool Recall Cool Color Temperature from EEPROM. Color setup. sRGB Recall SRGB Color Temperature from EEPROM. Red Gain from Digital-register User Green Green Gain Digital-register. Blue Blue Gain from Digital-register Full on or off...
- Page 14 Press to select submenu, and press to enter. Press to adjust. Press to exit Frame Size 14-100 Adjust Frame Size Brightness 0-100 Adjust Frame Brightness Contras 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 off Disable or Enable Bright Frame...
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Page 15: Osd Setup
OSD Setup Press (Menu) to display menu. Press to select (OSD Setup), and press to enter. Press to select submenu, and press to enter. - Page 16 Press to adjust. Press to exit H.Position 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 Select the OSD language Extra Press (Menu) to display menu.
- Page 17 Press to select (Extra), and press to enter. Press to select submenu, and press to enter. Press to adjust. Press to exit...
- Page 18 Exit Press (Menu) to display menu. Press to select (Exit), and press to exit. Exit Exit the main OSD...
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Page 20: Input/Output Specification
4. Input/Output Specification 4.1 D-SUB CONNECTORS Pin Assignments 15-Pin Side of the Signal Cable Pin Number Pin Number 15-Pin Side of the Signal Cable Video-Red Video-Green Ground N.C. Video-Blue N.C. DDC- Serial data Detect Cable sync GND-R sync GND-G DDC- Serial clock GND-B... -
Page 21: Factory Preset Display Modes
4.2 Factory Preset Display Modes... -
Page 22: Panel Specification
4.3 Panel Specification 4.3.1 General Features BM215WF4-T2BB is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. - Page 23 4.3.3 Electrical Characteristics Ta = 25°C Values Parameter Symbol Unit Notes MODULE : Power Supply Input Voltage Permissive Power Input Ripple (60Hz) 1000 1300 LCD-MOSAIC Power Supply Input Current (60Hz) 1300 1690 LCD-BLACK (75Hz) 2000 LCD-BLACK Power Consumption 5.00 Watt Inrush current 1, 4 RUSH...
- Page 24 4.3.4 Optical Characteristics (Ta=25 °C, V =5.0V, f =60Hz, D =72MHz, Is=110mA) Values Parameter Symbol Units Notes Contrast Ratio (PR-880) Surface Luminance, white cd/m (PR-880) Luminance Variation WHITE (PR-880) Rise Time Response Time (RD80S) Decay Time 0.642 0.332 0.305 GREEN 0.625 Color Coordinates...
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Page 25: Block Diagram
5. Block Diagram 5.1 Main Board CRYSTAL Panel Interface 14.318MHZ (X401) (CN406) Flash Memory Scalar IC RTD2281W-CG Key Control Interface Pm25LD020C (Include ADC, OSD, MCU) (CN405) (U403) (U401) H sync H sync V sync V sync DVI Connector D-Sub Connector (CN102) (CN101) D801... -
Page 26: Schematic
100N16V AZC399-04S AZC399-04S T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size AOC 50ID 絬 隔 瓜 絪 腹 715G4798-M0A-000-0040_101101 TPV MODEL AOC 50ID Key Component D-SUB I/O PCB NAME 715G4798-M0A <称爹> 称 爹... - Page 27 RXEC+ RXOC+ T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size AOC 50ID 絬 隔 瓜 絪 腹 715G4798-M0A-000-0040_101101 TPV MODEL AOC 50ID Key Component LVDS PANEL I/O PCB NAME 715G4798-M0A <称爹> 称 爹...
- Page 28 1N 50V 100N 50V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size AOC 50ID 絬 隔 瓜 絪 腹 715G4798-M0A-000-0040_101101 TPV MODEL AOC 50ID Key Component POWER PCB NAME 称 爹 <称爹> Date...
- Page 29 DET_+5V R485 NC/200K 1/16W 5% T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom AOC 50ID 絬 隔 瓜 絪 腹 715G4798-M0A-000-0040_101101 TPV MODEL AOC 50ID Key Component SCALER PCB NAME 715G4798-M0A <称爹>...
- Page 30 0.12 ohm 0.2 ohm R816 0.2 ohm Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL AOC 50ID Size 絬 隔 瓜 絪 腹 715G4798-M0A-000-0040_101101 TPV MODEL AOC 50ID Key Component CONVERT PCB NAME <称爹>...
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Page 31: Key Board
MENU Power Differential T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size AOC e943Fw 絬 隔 瓜 絪 腹 715G4164-K0C-000-0040_20100420.DSN TPV MODEL e943Fw Key Component 2.0 Touch key PCB NAME 715G4164-K0C <称爹> 称 爹... -
Page 32: Pcb Layout
7. PCB Layout 7.1 Main Board... -
Page 34: Key Board
7.2 Key Board 715G4842K0E000004F... -
Page 35: 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 36: 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 main board and check connections Replace key board and check connections... - Page 37 2. No Video (Power LED White) No Video (Power LED White) Press the power Replace the main board button is OK? 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 38 DIM (image overlap, focus or flicker) 3. DIM 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 39 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...
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Page 40: 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 simpl use “SC” key and “NEXT” Key to modify xyY value and use “ID”... - Page 41 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 ±30, y = 297 ±30 4.
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Page 42: Monitor Exploded View
10. Monitor Exploded View... - Page 43 Description BEZEL Power lens RUBBER FEET Main frame Rear cover Hinge Stand Stand cover Base Part No. Description Stand plate 0D1G1030--8120 SCREW(MAIN BOARD/MAIN FRAME) RUBBER FOOT 0Q1G-140-10120 SCREW(REAR COVER/HINGE) MYLAR 0M1G3130--5-47-CR3 SCREW(REAR COVER/MAIN FRAME) KEY BOARD 0M1G1730--8225-CR3 SCREW(STAND/HINGE) PANEL 0Q1G1030--6120 SCREW(STAND PLATE/BASE) MAIN BOARD F01G6064--4...
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Page 44: Bom List
DVI CABLE 1500MM GREATLAND 2nd SOURCE 0D1G1030--8120 screw 0M1G1730--8225-CR3 screw(Hinge) 0M1G3130--5-47-CR3 SCREW M3 x5 0Q1G-140-10120 SCREW 0Q1G1030--6120 SCREW 708GBG01-CP-3A AOC 40(2200) Q45G--77--4 PE FILM Q50G---4-10 TIE (Y1900221) Q52G---1185-98 3M TAPE 750GBT215W4BB1N20 E750 PANEL BM215WF4-T2BB 750GBT215W4BB1N10 PANEL BM215WF4-T2BB 2nd SOURCE 2436L-2518B... - Page 45 GALVALUME, T=0.3,BM215WF4-TJA1-6F1-A0， 3110T-0856A GALVALUME, T=0.3,BM215WF4-TJA1-6F1-A0， 3110T-0856B Down 3850L-0088A ID, YUPO, 78X37 PMP-P2 100-520U-13, 5U-C60 black A600, 4296L-0284B 170x7x0.45 6060L-2569A LM215WF4(TJBA,T2BB) 6061L-2064A LM215WF4-TJAA LS0609D3-C6LS, LUSEM, 960, 6BIT, MINI, C_B, 0ILUL-0185A R/TP, 48MM, 4PF, UPILEX, T9 LTBXNSSNXX1-02150T01, 487.1*277.5, 6308L-4013A LGC,T,B,X,N,S, S,N,X,X,1,02150,Top,01 LTXXNSSNXX1-02150B01, 487.10*277.5, LGC, 6308L-4014A T, X, X, N, S, S, N, X, X, 1, 02150, Bottom, 01 Source, Single, None-C/SKD, LM215WF4-TJC1,...
- Page 46 C77,C907 2.2U F, 10 Volt, K PER, X5R(JB), 1608 R/TP, 0CH2A-0017A T=0.9(MAX) C313,C314,C3 15,C318,C52, C61,C62,C63, 10U F, 25 Volt, K PER, X5R(JB), 3225 R/TP, 0CH2A-0026A C64,C71,C72, T=1.0(MAX) C913,C914,C9 20,C921 0.1U F, 25 Volt, Z PER, Y5V(JF), 1005 R/TP, C312 0CH2A-0038A T0.55(MAX) C701 0CH2A-0049A...
- Page 47 R140,R142,R1 79,R180,R20, R302,R54,R60 1,R602,R801, R802,R901,R9 02,R903,R906, R908 R131 0RH0102C422 10 OHM 1/16W 1608 1% D R/TP R701 0RH0221C622 2.2 OHM 1/16W 1608 5% D R/TP R10,R11,R12, R13,R14,R15, R16,R17,R18, 0RH0302C422 30 OHM 1/16W 1608 1% D R/TP R19,R22,R23, R25,R26 R322 0RH0472C422 47 OHM 1/16W 1608 1% D R/TP R2,R3 0RH1000C422...
- Page 48 R243,R253 0RH2702C422 27K OHM 1/16W 1608 1% D R/TP R148,R223,R2 0RH3302C422 33K OHM 1/16W 1608 1% D R/TP 34,R245 R135 0RH3602C422 36K 1/16W 1% 1608 R201 0RH3900C422 390 OHM 1/16W 1608 1% D R/TP R146 0RH3902C422 39K OHM 1/16W 1608 1% D R/TP R324,R326,R6 0RH4700C422 470 OHM 1/16W 1608 1% D R/TP...
- Page 49 FI-XB30SL-HF10, JAE, 30 Pin, 1 mm, Angle, Sn, 6630L-0157B USER LOCK IS100-L30F-C15, UJU, 30 Pin, 1 mm, Angle, Sn, 6630L-0410A 2nd SOURCE USER LOCK LM215WF4-TJC1-611, 2L, 0.6, 479.15*122.15, 3, 6870S-1235A N, Source, NO, Single Side E2436L 6091L-1904D BM215WF4-T2AA 6091L-1904B BM215WF4-T2AA 2nd SOURCE KOLON, XC210, T=0.123, 3022L-1413A...
- Page 50 7250L-1408A ZH350 25x16x0.1 Conductive Tape,STN1026WR(P), T=0.11, 7250L-1488B 15*25*0.11 756GFBCB-AA016--00 MAINBOARD-CBPCAT3A1AX SMTCA-U403 100GARJI004FT1 MCU ASS’Y-056G2233-11 A15G1636101 MAIN_FRAME A15G1648101 PlATE A33G1203AED-1B0100 stand-top A33G1204--1-1C0100 Power lens A34G2579AEDD1B013 BEZEL A34G2580AED-1B0100 rear cover A34G2581AED-1B0100 Stand-cover A34G2618AED-1B0130 BASE A37G0252011 HINGE CN406 033G801930F-CH---L WAFER 30P 1.0MM XIANGLONG 033G801930F-CH--JS WAFER 30P 1.0MM JINGSHI 2nd SOURCE...
- Page 51 055G--23524--A WELDING FULX WITHOUT Pb Q49G--51100 GW2066 Cleaner Q55G-100625 TIN STICK_LOW ARGENTUM 100uF +-20% 16V 105 ℃ 2000H 6.3*7 C141,C707 F67G305M1013GV 067G305S1013HV EC 100UF 20% 16V 6.3*7 2nd SOURCE CN701 F88G-304-11-YG DC JACK 3P BLACK YCG 088G-304-11--C DC JACK 3P BLACK CL 2nd SOURCE CN803 033G801910Y--H...
- Page 52 Q705 057G-763535 MOSFET LP3401LT1G -4.2A/-30V SOT-23 LRC 057G-763940 MOSFET AO3401A 4.2A/30V SOT-23 AOS 2nd SOURCE R419,R421,R4 24,R425,R439, 061G0402000-JT RST CHIPR MAX0R05 1/16W TZAI YUAN R444,R448,R4 52,R453,R483 R104,R109,R1 16,R131,R132, RST CHIPR 10 OHM +-5% 1/16W 0402 TZAI R133,R134,R1 061G0402100-JT YUAN 35,R136,R137, R138 R120,R121,R4 22,R479,R480,...
- Page 53 77,R478 R112,R113,R1 28,R129,R415, R420,R451,R4 RST CHIPR 4.7 KOHM +-5% 1/16W 0402 TZAI 061G0402472-JT 59,R467,R475, YUAN R476,R705,R7 R106,R110,R1 RST CHIPR 75 OHM +-5% 1/16W 0402 TZAI 061G0402750-JT YUAN FB101,R119,R 061G0603000-JT RST CHIP MAX 0R05 1/10W TZAI YUAN RST CHIPR 10 OHM +-5% 1/10W 0603 TZAI R713 061G0603100-JT YUAN...
- Page 54 R843 061G1206681-JT RST CHIPR 680 OHM +-5% 1/4W C404,C405,C4 065G040210131J---Y MLCC 0402 100pF +-5% 50V NPO YAGEO C113,C114,C1 15,C117,C118, C119,C142,C4 02,C403,C408, C409,C410,C4 065G040210412K---A MLCC 0402 0.1uF +-10% 16V X7R SAMSUNG 11,C414,C417, C419,C422,C7 08,C709,C717, C721,C725 C416,C420 065G0402105A5K---A MLCC 0402 1uF +-10% 10V X5R SAMSUNG 065G0402105A5K---T MLCC 0402 1uF -10% 10V X5R TAIYO YUDEN 2nd SOURCE...
- Page 55 MLCC 0603 0.47uF -10% 16V X7R TAIYO 065G060347412K---T 2nd SOURCE YUDEN C802 065G060368332K---Y MLCC 0603 68nF +-10% 50V X7R YAGEO C413,C424,C4 065G0805106A5K---A MLCC 0805 10uF +-10% 10V X5R SAMSUNG MLCC 0805 10uF -10% 10V X5R TAIYO 065G0805106A5K---T 2nd SOURCE YUDEN C813,C814 065G080522232K---Y MLCC 0805 2200pF +-10% 50V X7R YAGEO...
- Page 56 MAIN PCB FR-4 92*102mm*1.6mm 6 2nd SOURCE 715G4798M01000004F MAIN PCB FR-4 92*102mm*1.6mm 6 2nd SOURCE F12G6300001 RUBBER F12G6600001 RUBBER FEET Rating Label for E2251SWDN-e2251Swn 迪拜 F40G-22E61518A Fire bird F40G000361511C Warning Label for e51 WW WH F44GBF01101 EPS for e2151vw F44GBF01201 EPS for e2151vw...
- Page 57 F95G176X-10103 FFC CABLE 10P 326MM P0.5MM WENXIN 2nd SOURCE F09503 F95G179X30N102 FFC CABLE 30P 241MM P1.0MM WENXIN F95G179J30N102 FFC CABLE 30P 241MM P1.0MM KOTL 2nd SOURCE KEPCAAB5 KEY BOARD F09501 F95G-76T--6603 FFC CABLE 6PIN 344MM 1.0MM DIY F95G-76X--6603 FFC CABLE 6PIN 344MM 1.0MM WENXIN 2nd SOURCE F95G-76J--6603 FFC CABLE 6PIN 344MM 1.0MM KOTL...
- Page 58 E715 715G4842K01000004S Key Board FR-4 105*11*1.2mm 16 715G4842K01000004F Key Board FR-4 105*11*1.2mm 16 2nd SOURCE 715G4842K01000004L Key PCB FR-4 105*11*1.2mm 16 2nd SOURCE Q12G6600--6 FOOT Q40G000161514A CARTON LABEL(70*80) Q40G0001624-4A PALLET LABEL Q41G78D1615-9A WARRANTY CARD Q45G2010M0201A pe bag for manual Q45G8801607--7 pe bag...