AOC E2351Fh Service Manual
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AOC E2351Fh Service Manual

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23" 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
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....................................................34
8.Maintainability..................................................35
8.2.Trouble Shooting.........................................36
10.Monitor Exploded View.................................42
11.BOM List..................................................44
SAFETY NOTICE
Description
AOC E2351Fh
Horizontal Frequency
64-83 KHz
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  • Page 1: Table Of Contents

    All manuals and user guides at all-guides.com 23" LCD Color Monitor AOC E2351Fh Service Service Service Horizontal Frequency 64-83 KHz 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...

  • Page 2: Revision List

    All manuals and user guides at all-guides.com Revision List Version Release Date Revision History L&T Model Name HDAJNZ2CB7GGDNF.LF May-12-2011 Initial Release HDAJNZ2MB75ADNF.LF HDAJNZ2MB75ADNF.LF May-17-2011 Add new model HDAJNZ2MB75ADNF.LF HDAJNZ2LB7IGDNF.LF HDAJNZ2TB71RDNF.LF May-20-2011 Add new models HDAJNZ2FB7UMDNF.LF HDAJNZ2MB7RODNF.LF HDAJNZ2CB78ADNF.LF Nov-7-2011 Add new models HDAJNZ2EB77ADNF.LF Feb-13-2012 Add new models...

  • 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 Model number e2351Fh Driving system TFT Color LCD Viewable Image Size 584.2mm diagoanl Pixel pitch 0.0883*RGB mm(H) x 0.265mm(V) Panel Video R, G, B Analog lnterface Separate Sync. H/V TTL Display Color 16.7M Colors...

  • 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 Input Select Analog Select Analog Signal Source as Input Auto Config yes or no Auto adjust the picture to default Off timer 0-24hrs Select DC off time Image Ratio wide or 4:3 Select wide Select wide or 4:3 format for display DDC-CI yes or no...

  • 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: Input Signal Connector

    All manuals and user guides at all-guides.com 4.2 Factory Preset Display Modes HORIZONTAL VERTICAL STAND RESOLUTION FREQUENCY(kHZ) FREQUENCY(Hz) 640x480@60Hz 31.469 59.940 640x480@72Hz 37.861 72.809 640x480@75Hz 37.500 75.000 800x600@56Hz 35.156 56.250 800x600@60Hz 37.879 60.317 SVGA 800x600@72Hz 48.077 72.188 800x600@75Hz 46.875 75.000 1024x768@60Hz 48.363 60.004...

  • Page 21: Panel Specification

    All manuals and user guides at all-guides.com 4.3 Panel Specification 4.3.1 General Features BM230WF5-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 Ta = 25°C Values Parameter Symbol Unit MODULE : Power Supply Input Voltage Permissive Power Input Ripple (60Hz) 1200 1560 LCD-MOSAIC (60Hz) 1400 1820 Power Supply Input Current LCD-BLACK (75Hz) 2260 LCD-BLACK Power Consumption...
  • Page 23 All manuals and user guides at all-guides.com 4.3.4 Optical Characteristics (Ta= 25°C, V =5.0V, fv=60Hz, D = 77.0MHz, Is=60mA) Values Parameter Symbol Units Contrast Ratio 1000 Surface Luminance, white cd/m  Luminance Variation WHITE Rise Time Response Time Decay Time 0.638 0.331 0.310...

  • 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 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 Sheet Date...
  • Page 27 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 Sheet...
  • Page 28 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 Date...
  • Page 30 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 Sheet...

  • 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 715G4810M0E000004L...
  • Page 33 All manuals and user guides at all-guides.com...

  • Page 34: Key Board

    All manuals and user guides at all-guides.com 7.3 Key Board 715G4842K0E000004F...

  • Page 35: 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 36: 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 37 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 38 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 39 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?

  • Page 40: 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 41 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.

  • Page 42: Monitor Exploded View

    All manuals and user guides at all-guides.com 10. Monitor Exploded View...
  • Page 43 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)

  • Page 44: Bom List

    SCREW 708GDF01-CP-2A AOC 40 (1900) Q45G--77--4 PE FILM Q45G--77--5 PE PACKING (Y1900241) Q50G---4-10 TIE (Y1900221) Q52G---1185-99 big carton tape for aoc 750GBT230W5C11N000 PANEL BM230WF5-TJC1-8F2-A0 2436L-2109C BM230WF5-TJC1-8F2-A0, Case Top, 2chip 3110T-0857A GALVALUME, T=0.3, BM230WF5-TJA1 3110T-0857B GALVALUME, T=0.3, BM230WF5-TJA1 3850L-0088A ID, YUPO, 78X37...
  • Page 45 All manuals and user guides at all-guides.com LTBXNSSNEX5-02300T08, 521.60*297.60, 6308L-3518A LGC, T, B, X, N, S, S, N, E, X, 5, 02300, Top, LTXXNSSNEX5-02300B08, 524.60*297.60, 6308L-3519A LGC, T, X, X, N, S, S, N, E, X, 5, 02300, Bottom, 08 Source, Single, None-C/SKD, 6871L-2543B LM230WF5-TJC1, Single Side...
  • Page 46 All manuals and user guides at all-guides.com LDA5001A, LGD, LVDS, 6/8, 1/2, 0ILDL-0001A MINI-LVDS, 6, 1, DRD, GIP, AFRC, DGA, ODIN2, MLF, TR, 68 M24C04-RDW, STmicroeletronics, 4K, 5ms, 0ISGL-0008C TSSOP, R/TP, 8 SM4005, Silicon Mitus, TN MNT, 0ISML-0002A Boost+Op-Amp+L/S+D/C+PVcom, QFN (7x7), R/TP, 48 pin TNI8016-100M, DACOWELL, 10UH, M=20%, 0LCAA-0069B...
  • Page 47 All manuals and user guides at all-guides.com R126 0RH3001C422 3K OHM 1/16W 1608 1% D R/TP R120,R182,R2 0RH3002C422 30K OHM 1/16W 1608 1% D R/TP R110 0RH3901C422 3.9K OHM 1/16W 1608 1% D R/TP R201 0RH3902C422 39K OHM 1/16W 1608 1% D R/TP R109 0RH4701C422 4.7K OHM 1/16W 1608 1% D R/TP...
  • Page 48 NITTO, NITTO 5000NS, Clear, 30*3*0.16 7250L-1408A ZH350 25x16x0.1 Conductive Tape, 7250L-1488B STN1026W(P),15*25,T=0.11 756GFBCB-AA005--00 MCU ASS'Y IC FLASH MX25L2026DM1I-12G 2Mb SOP-8 U402 056G2233501 MXIC SMTCA-U402 100GANJD001FT1 AOC E2351 VH A15G1636301 Main-frame A15G1648101 PlATE A33G1203AED-1B0100 stand-top A33G1204--1-1C0100 Power lens A34G2581AED-1B0100 Stand-cover A34G2597AEDB1B0130 BEZEL A34G2598AED-2B0100...
  • Page 49 All manuals and user guides at all-guides.com 709G4810-QM001 COMSUPTIVE ASS""Y 055G--23524--A WELDING FULX WITHOUT Pb 无锡助焊剂 Q55G-100625 TIN STICK_LOW ARGENTUM C718 F67G204V181-3L 180uF +-20% 16V 105 ℃ 2000H 8*8 067G204V181-3K CS CAP 180uF 16V 8*8 mm 2nd source C141,C704,C707 F67G305M1013GV 100uF +-20% 16V 105 ℃...
  • Page 50 All manuals and user guides at all-guides.com R129,R148,R149,R5 061G0402102-JT RST CHIP 1K 1/16W 5% TZAI YUAN 29,R539 R305,R421,R422,R4 68,R469,R609,R702, 061G0402103-JT RST CHIP 10K 1/16W 5% TZAI YUAN R703 R306,R402,R403,R4 04,R411,R416,R712, 061G0402104-JT RST CHIP 100K 1/16W 5% TZAI YUAN R804 RST CHIP R 1Mohm 1/16W +/-5% TZAI R424 061G0402105-JT YUAN...
  • Page 51 All manuals and user guides at all-guides.com FENGHUA RST CHIPR 5.1KOHM +-5% 1/10W TZAI R607,R610 061G0603512-JT YUAN R715 061G06035362FF RST CHIPR 53.6KOHM +-1% 1/10W RST CHIPR 6.2KOHM +-1% 1/10W R809 061G06036201FF FENGHUA R801 061G0805100-JT RST CHIP 10R 1/8W 5% TZAI YUAN R805 061G0805304-JT RST CHIP 300K 1/8W 5% TZAI YUAN...
  • Page 52 All manuals and user guides at all-guides.com C712,C719,C810,C8 065G060310432K---Y MLCC 0603 0.1uF +-10% 50V X7R YAGEO C605,C606 065G060310512K---A MLCC 0603 1uF +-10% 16V X7R SAMSUNG MLCC 0603 1uF -10% 16V X7R TAIYO 065G060310512K---T 2nd source YUDEN MLCC 0603 1uF +-10% 25V X5R TAIYO C713,C728 065G060310525K---T YUDEN...
  • Page 53 100x110mm*1.6mm 6 联板 景旺 F12G6300001 RUBBER F12G6600001 RUBBER FEET F40G-22E61510C ID Label for e951 F40G0003615-3A LABEL POP(Silver EPEAT+EPA+Win7) F40G0003615-4A POP Label for e2351Fh F40G0003615-7A X-MEN Sticker Label F44GDF01101 EPS for e2351 F44GDF01201 EPS for e2351 F44GDF01615-2A Carton for e2351Fh F52G1201163001...
  • Page 54 All manuals and user guides at all-guides.com R002,R003,R007,R0 061G0402472-JT RST CHIP 4K7 1/16W 5% TZAI YUAN C008 065G040210131J---Y MLCC 0402 100pF +-5% 50V NPO YAGEO MLCC 0402 0.1uF -20%+80% 25V Y5V C005,C006,C007 065G040210427Z---Y YAGEO C011 065G0402105A5K---A MLCC 0402 1uF +-10% 10V X5R SAMSUNG MLCC 0402 1uF -10% 10V X5R TAIYO 065G0402105A5K---T 2nd source...

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