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...............................18
4.3.Panel Specification.............................................19
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............................................22
6.Schematic.......................................................23
6.1.Main Board....................................................23
6.2.Key Board......................................................28
7.PCB Layout.....................................................29
7.1.Main Board....................................................29
7.2.Key Board....................................................31
8.Maintainability..................................................32
8.1.Equipments and Tools Requirement...............32
8.2.Trouble Shooting.........................................33
9.White-Balance, Luminance Adjustment.............37
10.Monitor Exploded View.................................39
11.BOM List..................................................41
SAFETY NOTICE
AOC e943Fws
Horizontal Frequency
30-83 KHz
Page
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Summary of Contents for AOC e943Fws
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Page 1: Table Of Contents
18.5" LCD Color Monitor AOC e943Fws Service Service Service Horizontal Frequency 30-83 KHz Table of Contents Description Page Description Page 5.Block Diagram……..…………....22 Table of Contents..……......……..1 6.Schematic……………........23 Revision List.…........…………..2 6.1.Main Board………...........23 Important Safety Notice.……......……..3 6.2.Key Board...……..........28 1.Monitor Specification......………..4 7.PCB Layout..…………........29 2.LCD Monitor Description……………………………..5 7.1.Main Board………...........29... -
Page 2: Revision List
Revision List Version Release Date Revision History L&T Model Name T8AJNY2BZ3K2NNF.LF T8AJNY2CZ3ACNNF.LF Aug.-16-2010 Initial release T8AJNY2QZ3E6NNF.LF Sep.-09-2010 Add new model T8AJNY2BZ3K3NNF.LF Oct.-28-2010 Add CKD model T8AJNY2QZ3K63NF.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 Signal... -
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 0n/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 4.2 Factory Preset Display Modes... -
Page 19: Panel Specification
4.3 Panel Specification 4.3.1 General Features LM185WH2-TRA2 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 20 4.3.3 Optical Characteristics Electrical characteristics Ta = 25°C LED bar Electrical characteristics Ta = 25°C...
- Page 21 4.3.4 Optical Characteristics (Ta= 25°C, V =5.0V, fv=60Hz, D = 77.0MHz, Is=60mA)
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Page 22: Block Diagram
5. Block Diagram Main Board 12MHZ Panel Interface (X401) (CN409) Flash Memory Scalar IC NT68628 Key control Interface Pm25LD020C (Include MCU, ADC, OSD) (CN401) (U402) (U401) H sync EEPROM V sync M24C02 (U101) D-Sub Connector (CN101) D801 L801 (CN803) MOSFET (Q806) PWM Control Feedback Circuit... -
Page 23: Schematic
DDC_WP NC/CAT24C02WI-GT3 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 TPV MODEL G4134-M0D-000-0040-6-100613 e943Fws Key Component 2.0.INPUT PCB NAME 称 爹 Date Sunday , June 13, 2010 Sheet... - Page 24 NC/10K+-5%1/16W AO3401L T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 G4134-M0D-000-0040-6-100613 TPV MODEL e943Fws Key Component 3.0.OUTPUT PCB NAME 称 爹 Date Sunday , June 13, 2010 Sheet...
- Page 25 100N 50V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 G4134-M0D-000-0040-6-100613 TPV MODEL e943Fws Key Component 4.0.POWER PCB NAME 称 爹 Date Sunday , June 13, 2010 Sheet...
- Page 26 NC/120 OHM 11/30/2009 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 G4134-M0D-000-0040-6-100613 TPV MODEL e943Fws Key Component 5.0.SCALER PCB NAME 称 爹 Date Sunday , June 13, 2010 Sheet...
- Page 27 Co . , Ltd. ) OEM MODEL Size R812 0.15 ohm 0.15 ohm 0.1 ohm 0.1 ohm 絬 隔 瓜 絪 腹 G4134-M0D-000-0040-6-100613 TPV MODEL e943Fws R816 Key Component 7.0.CONVERT PCB NAME 称 爹 Date Sunday , June 13, 2010 Sheet...
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Page 28: 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 29: Pcb Layout
7. PCB Layout 7.1 Main Board 715G4134M01000004F... -
Page 31: Key Board
7.2 Key Board 715G4164K01000004F... -
Page 32: 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 33: 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 34 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 35 3. DIM DIM (image overlap, focus or flicker) 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 36 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 37: 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 38 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 39: Monitor Exploded View
10. Monitor Exploded View... - Page 40 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 BASE COVER-TOP...
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Page 41: Bom List
0M1G-140--6125 SCREW 0M1G-140--8125 SCREW 0M1G-940--5125 .CREW 0M1G1030--6120 SCREW M3X6 0Q1G-140-10120 SCREW 708G805701S-1A AOC 40 PAPER SLIPSHEET(1932) ASS'Y 708G8057-CP AOC 40(1840) ASS'Y Q50G---4-10 TIE (Y1900221) Q52G---1185-99 BIG CARTON TAPE FOR AOC 750GMT185W2A21N000 PANEL LM185WH2-TRA2 FQ LTD 2436L-1641A LM185WH2-TRA2-6F1-A0 GALVALUME, T=0.3,... - Page 42 C61,C8,C86,C9 0CH2104K562 0.1UF 50V K X7R 1608 R/TP C63,C64,C65 0CH2473H562 47NF, K, 25V, X7R, 0.9MM, 1608, R/TP 1U F, 10 VOLT, K PER, X5R(JB), 1608 R/TP, C10,C3,C5,C6,C7,C90 0CH2A-0007A T=0.9(MAX) C70,C71 0CH2A-0010A 33NF, M, 25V, X7R, 0.9MM, 1608, R/TP 10U F, 16 VOLT, K PER, X5R(JB), 3216 0CH2A-0011A R/TP, T=0.95(MAX) C1,C135,C137,C139,...
- Page 43 FL1,FL2,FL3,R106, R107,R133,R14,R142, R17,R177,R180,R181, R182,R183,R19,R201, 0RH0000C622 0 OHM 1/16W 1608 5% D R/TP R211,R214,R215,R216, R217,R4,R72,R77,R81, R88,R97 R131,R132 0RH0221C622 2.2 OHM 1/16W 1608 5% D R/TP R1,R2 0RH1000C422 100 OHM 1/16W 1608 1% D R/TP 0RH1001C422 1K OHM 1/16W 1608 1% D R/TP R15,R213,R22,R53, 0RH1002C422 10K OHM 1/16W 1608 1% D R/TP...
- Page 44 FI-XB30SL-HF10, JAE, 30 PIN, 1 MM, 6630L-0157B ANGLE, SN, USER LOCK LM185WH2-TRA2-6F1-A0, 2L, 0.6T, 339.0 X 6870S-1108B 38.0, 4, J, 96, SOURCE 6091L-1299B LM185WH2-TRA2-6F1-A0 KOLON, XC210, T=0.123, 3022L-1150A LM185WH2-TRA1-6F1-A0 LGE, MOS-T2-227, T=0.230, ANGLE = 4?, 3032L-0845A LM185WH2-TRA1-6F1-A0 3550B-0694A AL, T=0.5, LM185WH2-TRA1-6F1-A0 3850L-0151A BL, YUPO, 77X21 SWCH18A, TAP-TITE B, PAN HEAD, M2.0,...
- Page 45 7250L-0864A NITTO, NITTO 5000NS, CLEAR, 30*3*0.16 7250L-0865A 3M, ZH350, SILVER,15*8*0.08 7250L-1408A ZH350 25X16X0.1 756GQACB-AA064--00 MAIN BOARD-CBPCANYA2QQ SMTCA-U402 100GANG8001YT1 MCU ASS'Y-056G2233-11 A15G1327101 TILT SUPPORT BRACKET A34G2038AEDA1B0100 BEZELL185W-TB1-TBP1 A34G2039AGSA1B0100 REAR COVER A34G2040AGS-1B0100 LENS A34G2041AKMA1M0100 BASE COVER-TOP A34G2042AED-2B0100 BASE TRIM A34G2043AGS-1B0100 HINGE FRONT COVER A34G2044AGS-1B0100 HINGE BACK COVER A37G0188011...
- Page 46 U801 056G-700--5 IC LED DRIVER MP3389EF TSSOP28 U101 056G1133956 IC CAT24C02WI-GT3 SO-8 U402 056G2233-11 IC PM25LD020C-SCE SIOC-8(150MIL) 2M 056G1133-90--1 IC PM25LV020-100SCE 2MB SOIC-8 PMC TRA LMBT3906LT1G -200MA/-40V SOT-23 Q402 057G-417517 057G-417512 MMBT3906 TRA LMBT3904LT1G 200MA/40V SOT-23 Q302,Q701 057G-417518 057G-417511 MMBT3904 Q301 057G-763940 MOSFET AO3401A SOT-23...
- Page 47 RST CHIPR 33KOHM ??-5?? 1/16W 061G0402333-JY YAGEO R133 061G0402394-JY RST CHIP R 390K +/-5% 1/16W YAGEO 061G0402394-JF RST CHIP R 390K /-5% 1/16W FENGHUA R109,R114,R117 061G0402470-JF RST CHIPR 47 OHM 5% 1/16W FENGHUA 061G0402470-JY RST CHIPR 47 OHM 5% 1/16W YAGEO R414 061G04024700FF RST CHIP 470R 1/16W 1% FENGHUA...
- Page 48 RST CHIPR 270KOHM +-1% 1/10W R802 061G06032703FF FENGHUA 061G06032703FY RST CHIPR 270KOHM -1% 1/10W YAGEO RST CHIPR 30KOHM +-1% 1/10W R819 061G06033002FF FENGHUA 061G06033002FY RST CHIPR 30KOHM -1% 1/10W YAGEO RST CHIPR 51KOHM +-1% 1/10W R803 061G06035102FF FENGHUA 061G06035102FY RST CHIPR 51KOHM -1% 1/10W YAGEO RST CHIPR 6.8KOHM +-1% 1/10W R809 061G06036801FF...
- Page 49 065G040222415K---T CAP CHIP 0402 220NF K 16V X5R 065G040222415K---Y CAP CHIP 0402 220NF 16V X5R C426,C428 065G040247031J---Y CAP CHIP 0402 47PF 50V NPO +/-5% 065G040247031J---A CAP CHIP 0402 47PF J 50V NPO C102,C106,C108,C110, 065G040247312K---A 8.31HIP 0402 47NF K 16V X7R C111,C114 065G040247312K---T CAP CHIP 0402 0.047UF 16V X7R...
- Page 50 D801 093G-60S932--T DIODE SK310B DO-214AA D701,D703,D704, 093G3004--2 SR34 PAN JIT D707,D708 709G4134-QS001 COMSUPTIVE ASS'Y 052G---2191--A PAPER TAPE Q52G6026--6 MESH PRINTTING PAPER MAIN PCB 146*115MM*1.6MM FR-4 D/S E715 715G4134M01000004K 715G4134M01000004F MAIN PCB FR4 DS 146X115X1.6MM source KEPCAQQR KEY BOARD CN001 033G8032-7F--S--HR CONNECTOR 7P 1.25 U001 056G-669-15...
- Page 51 Q40G0003615A71 E943FW(E)POP(SILVER EPEAT+EPA) Q41G78D1615-4A CARD Q41G78S161545A E943FWS QSG Q44G8057101 Q44G8057201 Q44G8057615-2A CARTON Q45G--88609-88 EPE COVER Q45G2010M0201A PE BAG Q52G1201--4 3M TAPE Q41G780A61511C SA CENTERLIST Q40G0003615A81 WARRNING LABEL Q70G191061525A E943FWS CD MANUAL...