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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.......................................19
4.1.Input Signal Connector.........................................19
4.2.Factory Preset Display Modes...............................20
4.3.Panel Specification.............................................21
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
All manuals and user guides at all-guides.com
Table of Contents
Page
5.Block Diagram............................................24
6.Schematic.......................................................25
6.1.Main Board....................................................25
6.2.Key Board......................................................31
7.PCB Layout.....................................................32
7.1.Main Board....................................................32
7.2.Key Board....................................................32
8.Maintainability..................................................33
8.1.Equipments and Tools Requirement...............33
8.2.Trouble Shooting.........................................34
9.White-Balance, Luminance Adjustment.............38
10.Monitor Exploded View.................................40
11.BOM List..................................................42
SAFETY NOTICE
Description
AOC E2251FWH
Horizontal Frequency
30kHz-83KHz
Page
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Summary of Contents for AOC E2251FWH
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Page 1: Table Of Contents
All manuals and user guides at all-guides.com 21.5" LCD Color Monitor AOC E2251FWH Service Service Service Horizontal Frequency 30kHz-83KHz Table of Contents Description Page Description Page 5.Block Diagram……..…………....24 Table of Contents..……......……..1 6.Schematic……………........25 Revision List.…........…………..2 6.1.Main Board………...........25 Important Safety Notice.……......……..3 6.2.Key Board...……..........31 1.Monitor Specification......………..4... -
Page 2: Revision List
All manuals and user guides at all-guides.com Revision List Version Release Date Revision History L&T Model Name HIAJNZ2QB7A1CNF.LF JUL-20-2012 Add new CKD model HIAJNZ2QB7A1CNF.PA... -
Page 3: Important Safety Notice
All manuals and user guides at all-guides.com 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. -
Page 4: Monitor Specification
All manuals and user guides at all-guides.com 1. Monitor Specifications... -
Page 5: Lcd Monitor Description
All manuals and user guides at all-guides.com 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. -
Page 6: Operation Instruction
All manuals and user guides at all-guides.com 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
All manuals and user guides at all-guides.com 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 . - Page 8 All manuals and user guides at all-guides.com Luminance Press (Menu) to display menu Press to select (Luminance), and press to enter Press to select submenu, and press to enter.
- Page 9 All manuals and user guides at all-guides.com Press to adjust Press to exit...
- Page 10 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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.
- Page 12 All manuals and user guides at all-guides.com Press to select submenu, and press to enter. Press to adjust. Press to exit...
- Page 13 All manuals and user guides at all-guides.com 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.
- Page 14 All manuals and user guides at all-guides.com 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...
- Page 15 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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...
- Page 17 All manuals and user guides at all-guides.com Press to select (Extra), and press to enter. Press to select submenu, and press to enter. Press to adjust. Press to exit...
- Page 18 All manuals and user guides at all-guides.com Exit Press (Menu) to display menu. Press to select (Exit), and press to exit. Exit Exit the main OSD...
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Page 19: Input/Output Specification
All manuals and user guides at all-guides.com 4. Input/Output Specification 4.1 D-SUB CONNECTORS and DVI CONNECTORS Pin Assignments Pin Number 15-Pin Side of the Signal Cable 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... -
Page 20: Factory Preset Display Modes
All manuals and user guides at all-guides.com 4.2 Factory Preset Display Modes... -
Page 21: Panel Specification
All manuals and user guides at all-guides.com 4.3 Panel Specification 4.3.1 General Features BM215WF4-TJC1 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 22 All manuals and user guides at all-guides.com 4.3.3 Electrical Characteristics 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...
- Page 23 All manuals and user guides at all-guides.com 4.3.4 Optical Characteristics Ta=25 °C, V =5.0V, f =60Hz, D =72MHz, Is=110mA Values Parameter Symbol Units Notes Contrast Ratio 1000 (PR-880) Surface Luminance, white cd/m (PR-880) Luminance Variation WHITE (PR-880) Rise Time Response Time (RD80S) Decay Time...
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Page 24: Block Diagram
All manuals and user guides at all-guides.com 5. Block Diagram 5.1 Main Board CRYSTAL Panel Interface 14.318MHZ (CN406) (X401) Key Control Interface (CN405) Flash Memory Scalar IC NT68677UMFG/E MX25L2026DM1I-1 (Include ADC, OSD, MCU) Audio decoder 2G (U402) (U401) APA2176A (U601) D-Sub Connector DVI Connector HDMI Connector... -
Page 25: Schematic
T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size C126 100N16V AZC399-04S AZC399-04S TPV MODEL e2351Fh 絬 隔 瓜 絪 腹 100N16V G4810-M0C-AOC-X--1-110315 Key Component 2.0.INPUT PCB NAME <称爹> 称 爹 Date Monday , April 18, 2011 Sheet... - Page 26 NC/10K 1/16W 5% T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom G4810-M0C-AOC-X--1-110315 TPV MODEL 絬 隔 瓜 絪 腹 e2351Fh Key Component 3.0HDMI PCB NAME <称爹> 称 爹 Monday , April 18, 2011...
- Page 27 4K7 1/16W 5% 100N 16V AO3401L T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G4810-M0C-AOC-X--1-110315 TPV MODEL 絬 隔 瓜 絪 腹 e2351Fh Key Component 4.0.OUTPUT PCB NAME <称爹> 称 爹 Date Saturday , June 25, 2011...
- Page 28 C442 NC/100N 16V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 G4810-M0C-AOC-X--1-110315 TPV MODEL e2351Fh Key Component 5.0.SCALER PCB NAME <称爹> 称爹 Date Monday , April 18, 2011 Sheet Aug-08-24 change value 0 to 4.7K...
- Page 29 100N 50V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 G4810-M0C-AOC-X--1-110315 TPV MODEL e2351Fh Key Component 6.0.POWER PCB NAME 称 爹 <称爹> Monday , April 18, 2011 Sheet...
- Page 30 C610 2.2UF 16V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom G4810-M0C-AOC-X--1-110315 TPV MODEL 絬 隔 瓜 絪 腹 e2351Fh Key Component 7.0.AUDIO PCB NAME <称爹> 称 爹 Date Monday , April 18, 2011...
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Page 31: Key Board
Auto MENU Power Differential T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL AOC e943Fw Size 715G4164-K0C-000-0040_20100420.DSN TPV MODEL 絬 隔 瓜 絪 腹 e943Fw Key Component 2.0 Touch key PCB NAME 715G4164-K0C <称爹> 称 爹... -
Page 32: Pcb Layout
All manuals and user guides at all-guides.com 7. PCB Layout 7.1 Main Board 715G4810M01BRA004L CN406 D801 CN407 R801 FB108 Q301 C144 C143 R405 R146 Q302 R450 R406 R303 L801 R448 C304 R420 R147 U701 U402 R816 R461 R418 R411 C406 C401 Q402 C814... -
Page 33: Maintainability
All manuals and user guides at all-guides.com 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 34: Trouble Shooting
All manuals and user guides at all-guides.com 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 35 All manuals and user guides at all-guides.com 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 Check the LVDS/FFC Replace the LVDS/FFC cable or panel cable or panel Replace the key board...
- Page 36 All manuals and user guides at all-guides.com 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...
- Page 37 All manuals and user guides at all-guides.com 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?
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Page 38: White-Balance, Luminance Adjustment
All manuals and user guides at all-guides.com 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 39 All manuals and user guides at all-guides.com 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 40: Monitor Exploded View
All manuals and user guides at all-guides.com 10. Monitor Exploded View... - Page 41 All manuals and user guides at all-guides.com 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)
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Page 42: Bom List
INSULATING TAPE 0D1G1030--8120 screw 0M1G3130--5-47-CR3 SCREW M3 x5 0Q1G-140-10120 SCREW 705GFB41011 MANUAL ASS'Y 040G-58162435A P/N LABEL FOR MANUAL PE BAG F70G22C1615-9B E2251FWH CD MANUAL Q36G-600517 duster cloth Q41G780A61566A WARRANTY CARD Q44G600024D-3A carton Q45G2010M0201A pe bag for manual 705GFBSA032 CKD ASS""Y 0M1G1730--8225-CR3... - Page 43 IC EEPROM CAT24C02WI-GT3A 2Kb SOIC-8 U102,U105,U508 056G1133158 IC FLASH MX25L2026DM1I-12G 2Mb SOP-8 U402 056G2233501 MXIC SMTCA-U402 100GANJI006FT1 AOC E2251FWH SMTCA-U508 100GANJIA00Z1E AOC E2251FWH EDID H SMTCA-U105 100GANJIR00Z1E AOC E2251FWH EDID D SMTCA-U102 100GANJIV00Z1E AOC E2251FWH EDID A A15G1636301CKD MAIN_FRAME A34G2580AED-2B01C rear cover ADPCA1236YA2...
- Page 44 All manuals and user guides at all-guides.com 071G--5526A--S CORE 6.0X3.5X3.5 127 25% 2nd source 088G-35315FVXH-CK D-SUB CONN NOT WITH SCREW 15P CN101 BLUE XIANHE 088G-35315FVCL-CK D-SUB CONN NOT WITH SCREW 15P 2nd source BLUE CL DIODE CRY 12MHZ X401 093G--2251B--J NXS12.000AC30F-KAB10 NSK 709G4810-QM001C CONSUMPTIVE ASS'Y...
- Page 45 All manuals and user guides at all-guides.com AMAZING 356G0662056 IC ESD AT2042K6-5.0TRG1 SOT-23-6 BCD 2nd source U801 056G-700--5 IC LED DRIVER MP3389EF TSSOP28 MPS IC EEPROM CAT24C02WI-GT3A 2Kb SOIC-8 U102,U105,U508 056G1133158 NO-SUGGEST IC EEPROM 056G1133531 2nd source FM24C02A-SO-T-G 2K SOP-8 FUDAN 056G1133-34--1 IC EEPROM M24C02-RMN6TP 2Kb SO-8 ST 2nd source...
- Page 46 All manuals and user guides at all-guides.com 4,R411,R416,R712,R8 TZAI YUAN RST CHIPR 1 MOHM +-5% 1/16W 0402 TZAI R424 061G0402105-JT YUAN RST CHIPR 2.2 KOHM +-5% 1/16W 0402 TZAI R114,R115,R445 061G0402222-JT YUAN R118,R134,R304,R53 RST CHIPR 22 KOHM +-5% 1/16W 0402 TZAI 061G0402223-JT 2,R704 YUAN...
- Page 47 All manuals and user guides at all-guides.com YUAN RST CHIPR 270 KOHM +-1% 1/10W 0603 R802,R834 061G06032703FF FENGHUA RST CHIPR 270 KOHM -1% 1/10W 0603 061G06032703FT 2nd source TZAI YUAN RST CHIPR 5.1 KOHM +-5% 1/10W 0603 TZAI R607,R610 061G0603512-JT YUAN RST CHIPR 53.6KOHM +-1% 1/10W 0603 R715...
- Page 48 All manuals and user guides at all-guides.com C102,C103,C104,C10 MLCC 0402 47nF +-10% 16V X7R TAIYO 065G040247312K---T 7,C108,C109 YUDEN C101,C105,C106 065G040250931C---Y MLCC 0402 5pF +-0.25pF 50V NPO YAGEO C714,C805,C806,C80 065G060310131J---A MLCC 0603 100pF +-5% 50V NPO SAMSUNG 9,C815 065G060310131J---M MLCC 0603 100pF -5% 50V NPO MURATA 2nd source 065G060310131J---Y MLCC 0603 100pF -5% 50V NPO YAGEO...
- Page 49 All manuals and user guides at all-guides.com 071G-59C121--B FCM1608C-121T03 SMD 2nd source CHIP BEAD 0603 60R 25% 600mA FB602,FB603,FB605 071G-59C600-TA FCM1608CF-600T06 TAI-TECH CHIP BEAD 60 OHM 0603 071G-59C600 2nd source FCM1608CF-600T06 071G-59C600--M CHIP BEAD 60 OHM 0603 600mA 2nd source CHIP BEAD 300OHM 200mA FB105,FB501 071G-59G301-TA...
- Page 50 All manuals and user guides at all-guides.com IC LDO DC/DC APW7089KAI-TRG 4A 26V U705 356G0563419 SOP-8P ANPEC NO-SUGGEST IC LDO APW7080KAITRG 056G-563513 2nd source 4A/26V SOP-8P ANPEC 709G4810-QS001C CONSUMPTIVE ASS'Y 052G---2191--A PAPER TAPE 052G6026--2 MESH PRINTTING PAPER Q05G6054--1 接料带 SHEET Q09G6012--1 铜扣...
- Page 51 All manuals and user guides at all-guides.com RST CHIPR 100 OHM +-5% 1/16W 0402 TZAI R004 061G0402101-JT YUAN RST CHIPR 10 KOHM +-5% 1/16W 0402 TZAI R001 061G0402103-JT YUAN R002,R003,R007,R00 RST CHIPR 4.7 KOHM +-5% 1/16W 0402 TZAI 061G0402472-JT YUAN C008 065G040210131J---Y MLCC 0402 100pF +-5% 50V NPO YAGEO...
- Page 52 All manuals and user guides at all-guides.com Q44G--10--2 corner paper for CKD Q44G6000-4E CKD Carton Q44G6000CKD26A CKD CARTON Q45G--88607-56-CKD PE BAG Q45G--88607-57-CKD PE BAG(61cm*35cm) Q45G2010M0202A PE BAG Q45G9901609243---N PE PAG Q52G---1185-99 big carton tape for aoc Q52G1001MNT009AF INSULATING SHEET...
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