Table of Contents
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18.5" 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.Control Button......................................................6
3.3.OSD Menu............................................................7
4.Input/Output Specification.......................................18
4.1.Input Signal Connector.........................................18
4.2.Factory Preset Display Modes...............................19
4.3.Panel Specification.............................................20
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............................................23
6.Schematic.......................................................24
6.1.Main Board....................................................24
6.2.Key Board......................................................29
7.PCB Layout.....................................................30
7.1.Main Board....................................................30
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
AOC e943SWN/e943SWNK
Horizontal Frequency
30-83 KHz
Page
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Summary of Contents for AOC e943SWN
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Page 1: Table Of Contents
18.5" LCD Color Monitor AOC e943SWN/e943SWNK Service Service Service Horizontal Frequency 30-83 KHz Table of Contents Description Page Description Page 5.Block Diagram……..…………....23 Table of Contents..……......……..1 6.Schematic……………........24 Revision List.…........…………..2 6.1.Main Board………...........24 Important Safety Notice.……......……..3 6.2.Key Board...……..........29 1.Monitor Specification......………..4 7.PCB Layout..…………........30 2.LCD Monitor Description……………………………..5 7.1.Main Board………...........30... -
Page 2: Revision List
Revision List Version Release Date Revision History L&T Model Name Dec.-16-2011 Initial release T8BJNY2MZ33ANNF.LF Jan-10-2012 Add new model T8BJNY2EZ37ANNF.LF T8BJNY2MZ3RONNF.LF T8BJNY2BZ3A8NNF.LF T8BJNY2QZ3A9NNF.LF T8BJNY2EZ3SPNNF.LF Feb-26-2012 Add new model T8BJNY2CZ3SSNNF.LF T8BJNY2CZ3SDNNF.LF T8BJNY2CZ3JBNNF.LF T8BJNY2CZ3GLNNF.LF T8BJNY2EZ3GHNNF.LF Feb-26-2012 Add new model T8BJNY2EZ3GHNNF.LF Feb-26-2012 Add new model TABJUA2YBGA2NNF.LF Mar-12-2012 Add new model... -
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 base of the monitor. By changing these settings, the picture can be adjusted to your personal preferences. 3.2 Control Buttons Power Press the Power button to turn on/off the monitor. -
Page 7: Osd Menu
3.3 OSD Menu 1) 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 it. 3) Press <... -
Page 18: Input/Output Specification
4. Input/Output Specification 4.1 Input Signal Connector Analog connector... -
Page 19: Factory Preset Display Modes
4.2 Factory Preset Display Modes... -
Page 20: Panel Specification
4.3 Panel Specification 4.3.1 General Features LM185WH2-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 21 4.3.3 Optical Characteristics Electrical characteristics Ta = 25°C Values Parameter Symbol Unit Notes MODULE : Power Supply Input Voltage Permissive Power Input Ripple (60Hz) LCD-MOSAIC (60Hz) 1200 Power Supply Input Current LCD-BLACK (75Hz) 1380 LCD-BLACK Power Consumption 3.60 Watt Inrush current 1, 4 RUSH LED bar Electrical characteristics...
- Page 22 4.3.4 Optical Characteristics (Ta= 25°C, V =5.0V, fv=60Hz, D = 77.0MHz, Is=60mA) Values Parameter Symbol Units Notes Contrast Ratio (PR-880) Surface Luminance, white cd/m (PR-880) Luminance Variation (PR-880) WHITE Rise Time Response Time (RD80S) Decay Time 0.627 0.347 0.339 GREEN 0.621 Color Coordinates...
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Page 23: Block Diagram
5. Block Diagram Main Board 12MHZ Panel Interface (X401) (CN409) Flash Memory Scalar IC NT68628FG Key control Interface Pm25LD020C (Include MCU, ADC, OSD) (CN401) (U402) (U401) D-Sub Connector (CN101) D801 L801 (CN803) MOSFET (Q806) PWM Control Feedback Circuit ON/OFF MP3389EF (U801) -
Page 24: Schematic
6. Schematic 6.1 Main Board 715G4134M01000004F FB102 H_Sy nc R102 0R05 1/10W R103 100OHM1/16W VGA_B+ R105 C102 DSUB_H 5 DSUB_B+ 5 V_Sy nc R104 100OHM1/16W BEAD 10OHM1/16W 47nF 16V DSUB_V 5 R108 C105 NC/5PF 50V R106 R107 C103 C104 C127 C128 75OHM 1/16W 2.2K 1/16W... - Page 25 CN409 PA[0..9] PB[0..9] PA[0..9] PB[0..9] LVB3P LVB0M RXO0- RXO0+ LVB0P PA0 LVA3P LVB3M LVB1M RXO1- RXO1+ LVB1P PA1 LVA3M LVBCKP LVB2M RXO2- RXO2+ LVB2P PA2 LVACKP LVBCKM LVBCKM RXOC- RXOC+ LVBCKP PA3 LVACKM LVB2P LVB3M RXO3- RXO3+ LVB3P PA4 LVA2P LVB2M LVA0M RXE0-...
- Page 26 SOT 252 CMVCC1 U702 G1117-33T43UF D707 SR34 D708 SR34 SOT 223 VCC3.3 U701 C708 C709 C707 100N 16V 100N 16V 22UF 16V CMVCC1 CMVCC1 VCC3.3 R702 10K+-5%1/16W SOT 223 R703 D703 BKLT-EN 10K+-5%1/16W SR34 BKLT-EN U704 C702 Q701 100N 16V LMBT3904LT1G on_BACKLIGHT 5 R704 22K 1/16W...
- Page 27 VCC1.8 VCC3.3 CVDD VCC3.3 2,4 DVDD FB403 C406 ADC_VAA FB401 VCC1.8 FB404 300OHM 4.7UF 10V 0R05OHM1/8W 300OHM AVCC VCC3.3 C0805 AVCC C401 C402 C403 CVDD ADC_BIAS C439 4.7UF 10V 100N 16V 100N 16V 100N 16V C0805 C407 ADC_VAA33 C413 C414 C415 4.7UF 10V 1uF 16V...
- Page 28 +12V +12V 4,6 L801 D801 R813 47UH 0R05 4A 1/4W SK310B R811 C811 C810 R801 U801 150 OHM 1/10W NC/470uF 16V 100N 50V 10 OHM 1/10W MP3389EF C813 C803 C807 C801 0.47uF 16V Q806 VFAULT C805 2N2 50V 0.47UF 50V GATE APM8005KCTRG C802 68NF 50V...
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Page 29: Key Board
Power Auto MENU 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 30: Pcb Layout
7. PCB Layout 7.1 Main Board 715G4134M01000004F... -
Page 32: Key Board
7.2 Key Board 715G4164K01000004F... -
Page 33: 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 34: 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 35 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 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 37 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 38: 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 39 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
10. Monitor Exploded View... - Page 41 Description Part No. Description BEZEL L185W-TB1-TBP1 0M1G-940--5125 SCREW(HINGE /TILT SUPPORT BRACKET) REAR COVER 0M1G-140--6125 SCREW(TILT SUPPORT BRACKET/ REAR COVER) KEY BOARD PANEL LENS HINGE_ASS’Y WASHER 0M1G1030--6120 SCREW(MAIN BOARD/ SHIELD_MAIN_BASE) SHIELD_MAIN_BASE SCREW(FOR SIGNAL CONNECTOR) BASE TRIM FOOT PAD HINGE FRONT COVER 0M1G-140--8125 SCREW(SHIELD_MAIN_BASE/ HINGE) HINGE BACK COVER...
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Page 42: Bom List
.CREW 0M1G1030--6120 SCREW M3X6 0Q1G-140-10120 SCREW 708G8064-CP-3A AOC 40(1932) Q45G--77--4 PE FILM Q50G---4-10 TIE (Y1900221) Q52G---1185-99 BIG CARTON TAPE FOR AOC 750GMT185W2BB1N30 E750 PANEL LM185WH2-T2BB 750GMT185W2BB1N10 2nd source PANEL LM185WH2-T2BB 2436L-2510C LM185WH2-T2BB-T13 3110T-0704A GALVALUME, T=0.3, LM185WH2-TRA1 3850L-0088A ID, YUPO, 78X37... - Page 43 6061L-2116A LM185WH2-TJAA-T11 LS0608D3-CBLS, LUSEM, 690, 6BIT, MINI, 0ILUL-0168A C_B, R/TP, 35MM, 4PF, UPILEX, T8-HD LTBXNSSNXX1-01850T20, 422.6*238.1, 6308L-1838A LGC, T, B, X, N, S, S, N, X, X, 1, 01850, TOP, LTXXNSSXX1-01850B20, 422.6*238.1, LGC, 6308L-1839A T, X, X, N, S, S, N, X, X, 1, 01850, BOTTOM, SOURCE, SINGLE, NONE-C/SKD, 6871L-2339C LM185WH2-TJBA-T11, SINGLE SIDE...
- Page 44 TL2335ML, TLI, LVDS, 6/8, 1, MINI-LVDS, 6, 0ITLL-0042A 1-3PAIR, DRD, GIP, AFRC, DGA, QUARK, MLF, TR, 56 TNI8016-100M, DACOWELL, 10UH, M=20%, 0LCAA-0069B 2.1A, 0.093, 8.0X11.0X1.8 (1.2MM, IN-BOARD), R/TP FL1,FL2,FL3,R106,R107, R133,R14,R142,R17,R17 7,R180,R181,R182,R183, 0RH0000C622 0 OHM 1/16W 1608 5% D R/TP R19,R201,R211,R214,R2 15,R216,R217,R4,R72,R7 7,R81,R88,R97 R131,R132...
- Page 45 0RH8201C422 8.2K OHM 1/16W 1608 1% D R/TP R45,R48 0RH9100C422 910 OHM 1/16W 1608 1% D R/TP R50,R54 0RH9101C422 9.1K OHM 1/16W 1608 1% D R/TP AR11,AR12 0RHZL10005A 100OHM 5 1/16W 3216 R/TP 6200L-J015A BLM18PG300SN1D FI-XB30SL-HF10, JAE, 30 PIN, 1 MM, 6630L-0157B ANGLE, SN, USER LOCK BARE PCB ** LM185WH2-TJBA-T11, 2L,...
- Page 46 243.7*4.2*1.0, 3EA(NUMBER OF CHAIN), 6920L-0039A 1L(NUMBER OF LAYER), 48EA(NUMBER OF LED), AL 7250L-1038A T-GLOBAL, LI-98,243.1*3.6*0.25 7250L-0864A NITTO, NITTO 5000NS, CLEAR, 30*3*0.16 7250L-0865A 3M, ZH350, SILVER,15*8*0.08 7250L-1408A ZH350 25X16X0.1 CONDUCTIVE TAPE,STN1026WR(P), 7250L-1488B T=0.11, 15*25*0.11 756GQACB-AA065--00 MAINBOARD-CBPCANYA2QX SMTCA-U402 100GANJ8000FT1 MCU ASS’Y-056G2233-11 A15G1327101 TILT SUPPORT BRACKET A33G1151AGS-1B0100 LENS...
- Page 47 088G-3041CF DC JACK 3P BLACK CHANGLING 2nd source D-SUB CONN WITH SCREW 15P BLUE CN101 F88G-35315F-XH XIANHE D-SUB CONN WITH SCREW 15P BLUE 2nd source F88G-35315F-HD H40G-45762429A CBCP LABEL FOR EE CN803 033G801910Y--H WAFER 10P 1.0MM GAOLIN 311GF050B10ADH FFC CONN 10P 0.5MM HR 2nd source IC SCALER NT68628FG QFP-128PIN U401...
- Page 48 TRA MMBT3906 0.2A/40V SOT-23 BLUE 2nd source 057G-417512 ROCKET TRA LMBT3904LT1G 0.2A/40V SOT-23 Q302,Q701 057G-417518 057G-417--4 TRA PMBS3904 0.1A/40V SOT-23 NXP 2nd source TRA MMBT3904 0.2A/40V SOT-23 2nd source 057G-417525 SEMTECH TRA MMBT3904 0.2A/40V SOT-23 BLUE 2nd source 057G-417511 ROCKET Q301 057G-763940 MOSFET AO3401A 4.2A/30V SOT-23 AOS...
- Page 49 RST CHIPR 1 MOHM -5% 1/16W 0402 2nd source 061G0402105-JT TZAI YUAN RST CHIPR 1.2 KOHM +-1% 1/16W 0402 R714 061G04021201FT TZAI YUAN RST CHIPR 1.2 KOHM -1% 1/16W 0402 2nd source 061G04021201FF FENGHUA RST CHIPR 1.2 KOHM -1% 1/16W 0402 2nd source 061G04021201FY YAGEO...
- Page 50 RST CHIPR 47 OHM -5% 1/16W 0402 2nd source 061G0402470-JY YAGEO RST CHIPR 470 OHM +-1% 1/16W 0402 R414 061G04024700FY YAGEO RST CHIPR 470 OHM -1% 1/16W 0402 2nd source 061G04024700FF FENGHUA RST CHIPR 470 OHM -1% 1/16W 0402 2nd source 061G04024700FT TZAI YUAN RST CHIPR 470 OHM +-5% 1/16W 0402...
- Page 51 RST CHIPR 1 KOHM +-5% 1/10W 0603 TZAI R806,R808 061G0603102-JT YUAN 061G0603102-JI RST CHIPR 1 KOHM -5% 1/10W 0603 TA-I 2nd source RST CHIPR 1 KOHM -5% 1/10W 0603 2nd source 061G0603102-JF FENGHUA RST CHIPR 100 KOHM +-5% 1/10W 0603 R804 061G0603104-JF FENGHUA...
- Page 52 RST CHIPR 51 KOHM -1% 1/10W 0603 2nd source 061G06035102FT TZAI YUAN R809 061G06036801FT RST CHIP 6K8 1/10W 1% RST CHIPR 6.8KOHM -1% 1/10W 2nd source 061G06036801FF FENGHUA RST CIPR 75KOHM +-1% 1/10W TZAI R834 061G06037502FT YUAN RST CHIPR 75KOHM -1% 1/10W 2nd source 061G06037502FF FENGHUA...
- Page 53 MLCC 0402 0.22UF -10% 16V X5R TAIYO 2nd source 065G040222415K---T YUDEN MLCC 0402 0.22UF -10% 16V X5R 2nd source 065G040222415K---Y YAGEO MLCC 0402 47PF +-5% 50V NPO C426,C428 065G040247031J---A SAMSUNG 065G040247031J---Y MLCC 0402 47PF -5% 50V NPO YAGEO 2nd source C102,C106,C108,C110,C MLCC 0402 47NF +-10% 16V X7R 065G040247312K---A...
- Page 54 MLCC 0603 68NF +-10% 50V X7R C802 065G060368332K---A SAMSUNG 065G060368332K---Y MLCC 0603 68NF -10% 50V X7R YAGEO 2nd source MLCC 0603 68NF -10% 50V X7R 2nd source 065G060368332K---F FENGHUA MLCC 0805 2200PF +-10% 50V X7R C813,C814 065G080522232K---A SAMSUNG MLCC 0805 2200PF -10% 50V X7R 2nd source 065G080522232K---F FENGHUA...
- Page 55 ID LABEL E943SWN AP_CH F40G000361517A SILVER EPEAT+EPA F40G000361521A WARNING LABEL I53 WW_BK F41G78D1615-7A WARRANTY CARD FOR AP F44G8A64615-1A-JVS CARTON FOR E943SWN SERIES F70G19C1615-3A E943SWN CD MANUAL F80G-L19L02-HR ADAPTER 12V 24W E09502 F95G8014-7X605 WIRE HARNESS 7P-7P 120MM XINYA F95G8014-7R605 WIRE HARNESS 7P-7P 120MM DERUN...
- Page 56 RST CHIPR 100 OHM -5% 1/16W 0402 2nd source 061G0402101-JY YAGEO RST CHIPR 10 KOHM +-5% 1/16W 0402 R001,R002,R003 061G0402103-JT TZAI YUAN RST CHIPR 10 KOHM -5% 1/16W 0402 2nd source 061G0402103-JY YAGEO R007,R008,R009,R010,R RST CHIPR 4.7 KOHM +-5% 1/16W 0402 061G0402472-JT 011,R012 TZAI YUAN...
- Page 57 Q44G8064201 CUSHION EPS Q45G2010M0201A PE BAG FOR MANUAL Q52G1201--4 3M TAPE E09503 S95G176T10572 FFC CABLE 10P 543MM P0.5MM DIY 095G176J-10572 FFC CABLE 10P 543MM P0.5MM KOTL 2nd source...