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19.5" LCD 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 Buttons and Connections...............................6
3.3.OSD Setting.............................................................8
4.Input/Output Specification........................................18
4.1.Input Signal Connector..........................................18
4.2.Preset Display Modes...... ..........................19
4.3.Panel Specification...........................................20
5.Block Diagram............................................................22
5.1.Main Board.....................................................22
5.2.Power Board..................................................23
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
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
R FOR TH
Table of Contents
Page Description
SAFETY NOTICE
EQUIPMENT CONTAINING HIGH VOLTAGES.
6.Schematic..........................................................24
6.1.Main Board.......................................................24
6.2.Power Board....................................................29
6.3.Key Board....................................................31
7.PCB Layout.........................................................33
7.1.Main Board......................................................33
7.2.Power Board.....................................................34
7.3.Key Board........................................................36
8.Maintainability.....................................................37
8.1.Equipments and Tools Requirement..................37
8.2.Trouble Shooting.............................................38
9.White-Balance,Luminance Adjustment.................42
10.Monitor Exploded View......................................44
11.BOM List......................................................45
AOC E2050SWD
Horizontal Frequency
30 - 83kHz
Page
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Summary of Contents for AOC E2050SWD
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Page 1: Table Of Contents
19.5" LCD Monitor AOC E2050SWD Service Service Service Horizontal Frequency 30 - 83kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.Schematic…………..….........24 Revision List.…...........……..2 6.1.Main Board..…….…...........24 Important Safety Notice.….…......……..3 6.2.Power Board..……….........29 1.Monitor Specification......………....4 6.3.Key Board..……….........31 2.LCD Monitor Description……….……………………..5 7.PCB Layout..………..........33... -
Page 2: Revision List
Revision List Version Release Date Revision History TPV Model Name T9CMN26KAGACHNE T9CMN26MAGACHNE T9CMN26IAGACHNE Initial release Feb.-17-2013 T9CMN26VAGACHNE T9CMN26TAGACHNE T9CMN26XAGACHNE... -
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, a power board and a key board which house the flat panel control logic, brightness control logic and DDC. The power part will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage. -
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 (See Figure ). By changing these settings, the picture can be adjusted to your personal preferences. * The power cord should be connected. - Page 7 1. AC port 2. VGA 3. DVI (available for selected models) 4. HDMI(available for selected models) 5. Audio(available for selected models) To protect equipment, always turn off the PC and LCD monitor before connecting. 1. Connect the power cable to the AC port on the back of the monitor. 2.
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Page 8: Osd Setting
3.3 OSD Setting Basic and simple instruction on the control keys. 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 it . press - or + to navigate through the sub-menu functions. Once the desired function is highlighted, press MENU-button to activate it. - Page 9 Luminance 1 Press (Menu) to display menu. 2 Press - or + to select (Luminance), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 10 Image Setup 1 Press (Menu) to display menu. 2 Press - or + to select (Image Setup), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 11 Color Setup 1 Press (Menu) to display menu. 2 Press - or + to select (Color Setup), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 12 Picture Boost 1 Press (Menu) to display menu. 2 Press - or + to select (Picture Boost), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 13 OSD Setup 1 Press (Menu) to display menu. 2 Press - or + to select (OSD Setup), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 14 Extra 1 Press (Menu) to display menu. 2 Press - or + to select (Extra), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 15 Exit 1 Press (Menu) to display menu. 2 Press - or + to select (Exit), and press to enter. 3 Press - or + to select submenu, and press to enter. 4 Press - or + to adjust. 5 Press to exit.
- Page 16 Orange or red e-Saver Welcome to use AOC e-Saver monitor power management software! The AOC e-Saver features Smart Shutdown functions for your monitors, allows your monitor to timely shutdown when PC unit is at any status (On, Off, Sleep or Screen Saver);...
- Page 17 Screen+ Welcome to "Screen+" software by AOC, Screen+ software is a desktop screen splitting tool, it splits the desktop into different panes, each pane displays a different window. You only need to drag the window to a corresponding pane, when you want to access it. It supports multiple monitor display to make your task easier. Please follow the installation...
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Page 18: Input/Output Specification
4. Input/Output Specification 4.1 Input Signal Connector... -
Page 19: Preset Display Modes
.2 Preset Display Modes... -
Page 20: Panel Specification
4.3 Panel Specification 4.3.1 General Features M195FGE-L20 is a 19.5” TFT Liquid Crystal Display module with WLED Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1600 x 900 HD+ mode and can display up to 16.7M colors. The converter module for Backlight is not built in. - Page 21 Back Light Unit Ta = 25 ± 2.º C 4.3.4 Optical Characteristics...
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Page 22: Block Diagram
5. Block Diagram 5.1 Main Board 715G4502M01000004I 04.SCALER 02.INPUT VCC3.3 VCC3.3 SOG_DET VCC1.8 SOG_DET SOG_DET VCC1.8 05.PANEL INTERFACE EDID_WP AHS0 EDID_WP AHS0 AHS0 AVS0 AVS0 AVS0 PA[0..9] DDCSDA1 DDCSDA1 DDCSDA1 PA[0..9] PA[0..9] DDCSCL1 DDCSCL1 DDCSCL1 VGA_CABLE_DET VGA_CABLE_DET VGA_CABLE_DET PB[0..9] 02.D-SUB INPUT PB[0..9] PB[0..9] EDID_WP... -
Page 23: Power Board
5.2 Power Board 715G4744P01003001M Transformer Rectifier Bridge 14.5V EMI filter (T901) diodes Rectifier and Filter Start Resistor (R908,R911) Feedback PWM Control Circuit Power Switch LD7576AGR (U901) (Q901) Photo coupler Regulator (U902) (IC903) L801 D801 14.5V C809 MOSFET (CN804) (Q801) PWM Control ON/OFF OZ9998BGN (U801) -
Page 24: Schematic
6. Schematic 6.1 Main Board 715G4502M01000004I CN101 DET_VGA R102 100R 1/16W 5% VGA_CABLE_DET VGA_CABLE_DET 5 D-SUB 15P VGA_5V DDCSCL1 R101 DDCSCL_A DDCSCL1 VGA_5V 100R 1/16W 5% VSIN0 BIN0- HSIN0 BIN0 R103 R104 R105 C102 GIN0- BIN0 ZD101 0R05 1/16W 0R05 1/16W 100R 1/16W 5% 47N16V B0+ 5... - Page 25 CN102 R127 DVI_CABLE_DET 5 JACK 100R 1/16W 5% DVI5V 3,5,7 VSY NC DET_DVI DVI5V SY NC GND SCL_DVI R128 100R 1/16W 5% D102 DDC SCL SDA_DVI R129 100R 1/16W 5% ESD_DVI BAV70 DDC SDA DVI5V R130 1K 1/16W 5% U104 Q101 ESD_DVI ESD_DVI...
- Page 26 VCC1.8 U401 NT68660FG FB401 and FB402 is VCC1.8 7 PB[0..9] R402 NC/2K2 1/16W 5% NC==>3.3V use TO252 type PB[0..9] FB401 LVB3P R403 NC/2K2 1/16W 5% CVDD 300OHM LVB3M U401 NT68660UFG FB402 is NC==>3.3V LVBCKP LVBCKM VCC3.3 and 1.8V LDO use SOT-223 type LVB2P C401 C402...
- Page 27 PA[0..9] PB[0..9] PA[0..9] PB[0..9] LVB3P CN408 LVA3P LVB3M CONN LVA3M LVBCKP LVB0M RXO0- LVACKP LVBCKM LVB0P RXO0+ LVACKM LVB2P LVB1M RXO1- LVA2P LVB2M LVB1P RXO1+ LVA2M LVB1P LVB2M RXO2- LVA1P LVB1M LVB2P RXO2+ LVA1M LVB0P LVA0P LVB0M LVBCKM RXOC- LVA0M LVBCKP RXOC+ LVB3M...
- Page 28 VCC3.3 CN702 U701 AZ1117H-3.3TRG1 FB701 0 OHM +-5% 1/8W 3,4,5 INPUT OUTPUT VCC3.3 5 VCC3.3 ADJ/GND ON/OFF NC/CONN C701 R702 4K7 1/16W 5% 100N 16V +5V 3,4,5 CN701 R703 100R 1/16W 5% Adj_BACKLIGHT 5 C706 U702 VCC3.3 100N 16V C705 NC/G1117-33T43UF 100uF16V ON/OFF...
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Page 29: Power Board
6.2 Power Board 715G4744P01003001M R929 100 OHM 1/4W BD901 C916 C928 F801 KBP308G R930 100 OHM 1/4W 2N2 500V 2N2 500V 0R05 1/4W +14.5V R903 100 OHM 1/4W R904 ZD901 250OHM2W MTZJ T-72 16B 80GL22T-3 C918 680UF 25V T901 D901 POWER X'FMR SR515 R905... - Page 30 FB802 D801 L801 +14.5V C801 47UH BEAD Q801 R804 330uF 25V C814 SK310B 100N 50V 10 OHM 1/8W APM8005KCTRG R801 C810 10K 1/8W 0.47UF 50V ON/OFF R814 R815 R802 10 OHM 1% 1/4W C809 150K 1/8W R805 300K 1/8W C811 C802 33UF 100V 0.47UF 50V...
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Page 31: Key Board
6.3 Key Board 715G4747K02000001C LED001 CN001 LBADC1 R001 2KOHM 1% 1/10W LBADC2 DC_POWERON R002 0R01 1/10W LED_1# LED_2# C001 C002 R003 2KOHM 1% 1/10W R004 1K 1/10W NC/0.1uF 50V NC/0.1uF 50V Wire Harness SGND SW005 SW004 SW003 SW002 SW001 AUTO(2.0K) 1.118V LBADC1 DOWN... -
Page 32: Pcb Layout
7. PCB Layout 7.1 Main Board 715G4502M01000004I... -
Page 34: Power Board
7.2 Power Board 715G4744P01003001M... -
Page 36: Key Board
7.3 Key Board 715G4747K02000001C... -
Page 37: 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 38: Trouble Shooting
8.2 Trouble Shooting 1. 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 the converter board Replace main board and check connections Replace key board and check connections... - Page 39 2. No Video (Power LED Blue) No Video (Power LED Blue) Press the power Replace the main board button is OK? Replace the converter The end board 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 40 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 41 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 42: 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 simple use “SC” key and “NEXT” Key to modify xyY value and use “ID” key to modify the TEXT description Following is the procedure to do white-balance adjust . - Page 43 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±20，y=297±20 4.
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Page 44: Monitor Exploded View
10. Monitor Exploded Views NO P/N PART NAME Q'TY 1 Q34G7636AED* BEZEL 2 A33G1181ABJ* 3 A33G1182 1* POWER LENS 4 Q52G1801MNT160CF MYLAR 5 A15G1586* MAIN FRAME 6 A15G1587101 HINGE PLATE 7 Q34G7637ABJ* REAR COVER 8 A37G0241013 HINGE 9 A33G1183ABJ* STAND STAND 10 A34G2530ABJ* COVER... -
Page 45: Bom List
TIE (Y1900221) M05201 Q52G100202500A00JY AL FOIL M05202 Q52G100204500A00JY AL FOIL M05203 Q52G100204500A00JY AL FOIL Q52G1301024A0100YY BIG CARTON TAPE FOR AOC 60MM Q52G1801MNT160CFLT INSULATING SHEET Q52G6019 14 TAPE E09501 S95G179T30PE37 FFC CABLE 30P 175mm 1.0MM H40G000261553A TCO'05 EPA LABEL 756GHCCB0A50860001 MAIN BOARD-CBPCAN2A1H2... - Page 46 CN402 033G3802 6B Y WAFER CN701 033G3802 9B Y CONN 2.0 9P CN408 033G801930F CH FFC CONN 1.0mm 30P R/A 34mm 6mm CN101 088G 35315FVCL D-SUB CONN V/T 15P BLUE H=10.4 CN102 088G 35424FVXH DVI CONN V/T 24P WHITE X401 093G 2251BCEC CRYSTAL S-F-12.000M-30-3030-2085-25 709G4502 HM001...
- Page 47 R916 061G08051002FT RST CHIP 10K 1/8W 1% R806 061G0805102 JF RST CHIPR 1K OHM +-5% 1/8W FENGHUA R907 061G0805102 JT RST CHIPR 1K OHM +- 5% 1/8W TZAI YUAN R928 061G0805103 JF RST CHIPR 10K OHM +-5% 1/8W FENGHUA R801 061G0805103 JF RST CHIPR 10K OHM +-5% 1/8W FENGHUA R818...
- Page 48 C926 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% C912 065G080510432K CAP CHIP 0805 100N 50V X7R +/-10% C807 065G080522432K CAP CHIP 0805 220N 50V X7R +/-10% C806 065G080522432K CAP CHIP 0805 220N 50V X7R +/-10% C804 065G080547432K CAP CHIP 0805 0.47UF K 50V X7R C811 065G080547432K CAP CHIP 0805 0.47UF K 50V X7R...
- Page 49 FB801 071G 55 29 FERRITE BEAD FB802 071G 55 29 FERRITE BEAD FB901 071G 55 29 FERRITE BEAD FB902 071G 55 29 FERRITE BEAD FB903 071G 55 29 FERRITE BEAD F902 084G 56 4 B FUSE 4A 250V F901 084G 56 4 B FUSE 4A 250V ZD901 093G 39A6852T...
- Page 50 R141 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN R140 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN R139 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN R138 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN R137 061G0402100 JT RST CHIP 10R 1/16W 5% TZAI YUAN...
- Page 51 R405 061G0402392 JT RST CHIP R 3K9 +/-5% 1/16W TZAI YUAN R404 061G0402392 JT RST CHIP R 3K9 +/-5% 1/16W TZAI YUAN R401 061G0402392 JT RST CHIP R 3K9 +/-5% 1/16W TZAI YUAN R419 061G0402394 JF RST CHIP R 390K +/-5% 1/16W FENGHUA R408 061G04024700FT RST CHIP 470R 1/16W 1%...
- Page 52 C428 065G040222031J CAP CHIP 0402 22P 50V NP0 +/-5% C426 065G040222031J CAP CHIP 0402 22P 50V NP0 +/-5% C182 065G040222031J CAP CHIP 0402 22P 50V NP0 +/-5% C181 065G040222031J CAP CHIP 0402 22P 50V NP0 +/-5% C101 065G040222415K CAP CHIP 0402 220nF K 16V X5R C116 065G040222415K CAP CHIP 0402 220nF K 16V X5R...
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