Table of Contents
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21.5" 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............................................................23
5.1.Main Board.....................................................23
5.2.Power Board..................................................24
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
UNIT WHEN S
Table of Contents
Page Description
SAFETY NOTICE
EQUIPMENT CONTAINING HIGH VOLTAGES.
6.Schematic..........................................................25
6.1.Main Board.......................................................25
6.2.Power Board....................................................30
7.PCB Layout.........................................................32
7.1.Main Board......................................................32
7.2.Power Board.....................................................34
7.3.Key Board........................................................35
8.Maintainability.....................................................36
8.1.Equipments and Tools Requirement..................36
8.2.Trouble Shooting.............................................37
9.White-Balance,Luminance Adjustment.................41
10.Monitor Exploded View......................................43
11.BOM List......................................................44
AOC e2250Swda
Horizontal Frequency
30 - 83kHz
Page
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Summary of Contents for AOC e2250Swda
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Page 1: Table Of Contents
21.5" LCD Monitor AOC e2250Swda Service Service Service Horizontal Frequency 30 - 83kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.Schematic…………..….........25 Revision List.…...........……..2 6.1.Main Board..…….…...........25 Important Safety Notice.….…......……..3 6.2.Power Board..……….........30 1.Monitor Specification......………....4 7.PCB Layout..………..........32 2.LCD Monitor Description……….……………………..5 7.1.Main Board………..…........32... -
Page 2: Revision List
Revision List Version Release Date Revision History TPV Model Name TIBAN26BAGA2DNE TIBAN26BAGA1DNE TIBANT6BAGA1DNE TIBAN26EAGA2DNE Initial release Jul.-29-2011 TIBAN26EAGA1DNE TIBKN26EAGA1DNE TIBMN26EAGA2DNE TIA1N26BDFA2DNE TIA4N26BDFA2DNE TIA4N26BDFACDNE TIA4N26LAGACDNE TIA4N26MAGACDNE TIB1N26BDFACDNE TIB1N26LAGACDNE TIBAN22EAGA2DNE Feb.-26-2013 Add new models TIBAN26BAGA3DNE TIBAN26BDFA2DNE TIBAN26BDFA3DNE TIBAN26EAGA2DCE TIBCN22EAGA1DNE TIBCN26BDFA1DNE TIBKN26BAGA1DNE TIBMN26BAGA1DNE... -
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 This specification applies to the 21.5 inch-wide Color a-Si TFT-LCD Module M215HW01.The display supports the Full HD - 1920(H) x 1080(V) screen format and 16.7M colors (RGB 6-bits + Hi-FRC data). All input signals are 2-channel LVDS interface and this module doesn’t contain an driver board for backlight. - Page 21 Note 1: LVDS Signal Waveform...
- Page 22 LED array electrical characteristics Note (1) LED light bar input voltage and current are measured by utilizing a true RMS multimeter as shown below: (2) PBL = IPIN × VPIN × ( 8 ) input pins , LED light bar circuit is ( 9 )Series, ( 8 )Parallel. (3) The lifetime of LED is defined as the time when LED packages continue to operate under the conditions at Ta = 25 ±2 ℃...
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Page 23: Block Diagram
5. Block Diagram 5.1 Main Board 715G4502M01000004C 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 24: Power Board
5.2 Power Board 715G4744P01000001C 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 (Q801) (CN804) PWM Control OZ9998BGN (U801) -
Page 25: Schematic
6. Schematic 6.1 Main Board 715G4502M01000004I CN101 DET_VGA VGA_CABLE_DET R102 100R 1/16W 5% VGA_CABLE_DET 5 D-SUB 15P VGA_5V DDCSCL1 DDCSCL_A R101 DDCSCL1 100R 1/16W 5% VGA_5V VSIN0 BIN0- HSIN0 BIN0 R103 R104 R105 C102 GIN0- ZD101 BIN0 0R05 1/16W 0R05 1/16W 100R 1/16W 5% 47N16V B0+ 5... - Page 26 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 27 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] LVB3P FB401 R403 NC/2K2 1/16W 5% CVDD LVB3M 300OHM U401 NT68660UFG FB402 is NC==>3.3V LVBCKP LVBCKM VCC3.3 and 1.8V LDO use SOT-223 type LVB2P C401 C402...
- Page 28 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 29 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 30: Power Board
6.2 Power Board 715G4744P01000001C R929 100 OHM 1/4W BD901 C916 C928 F801 KBP208G 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 NC/680UF/25V T901 D901 POWER X'FMR SR515 R905 470OHM +-5% 1/8W... - Page 31 FB802 D801 L801 CN803 +14.5V C801 47UH BEAD Q801 R804 330uF 25V C814 SK310B 100N 50V 10 OHM 1/8W APM8005KCTRG R801 C810 R815 10K 1/8W 0.47UF 50V R819 R820 R821 R822 160K 1/8W NC/CONN ON/OFF R814 10 OHM 1% 1/4W R802 C809 R805...
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Page 32: Pcb Layout
7. PCB Layout 7.1 Main Board 715G4502M01000004C... -
Page 34: Power Board
7.2 Power Board 715G4744P01000001C... -
Page 35: Key Board
7.3 Key Board 715G4747K02000001C... -
Page 36: 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 37: 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 38 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 39 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 40 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 41: 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 42 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 43: Monitor Exploded View
10. Monitor Exploded Views PART NAME Q'TY BEZEL FUNCTION BUTTON POWER LENS MYLAR MAIN FRAME HINGE PLATE REAR COVER HINGE STAND STAND COVER BASE RUBBER FOOT HINGE COVER... -
Page 44: Bom List
P/N LABEL FOR BASE H40G 58461555B win7+EPA+SILVER+TCO05 LABE H41G78D1615 1A EU address card H44GB018101 EPS-2 21.5W H44GB018201 EPS-2 21.5W H44GB018615 2B e2250Swda CARTON H45G 77 6 PE PACKING H45G 87 1 25 EPE COVER H52G1801 16006 insulating sheet H70G21C1615 2B e2250Swda CD MANUAL... - Page 45 KEPCAHB5 KEY BOARD PLPCA9361AHE3 POWER BOARD Q40G 58162435A LABEL Q45G 76 28 H PE BAG FOR MANUAL Q52G 1185 99 TAPE Q52G6019 14 TAPE E08907 S95G179T30NE34 FFC CABLE 30P 190mm P1.0MM 2nd source 756GHBCB A1004 MAIN BOARD-CBPCAN2A1H3 SMTCB-U402 100GANAI029W11 MCU ASS'Y-056G2233 11 CN402 033G3802 6B Y WAFER...
- Page 46 709G4744 HM001 CONSUMPTIVE ASS'Y H40G 45762429A LABEL BD901 093G 50460515 BRIDGE KBP308G-C 3A 800V KBP Q55G 100625 TIN STICK_LOW ARGENTUM C702 067G 3051013PB EC 105C 100uF M 16V 5*11mm C705 067G 3051013PB EC 105C 100uF M 16V 5*11mm C716 067G 3051013PB EC 105C 100uF M 16V 5*11mm C710 067G 3051013PB...
- Page 47 R101 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R102 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R105 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R106 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R108 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN...
- Page 48 R726 061G0805000 JT RST 0805 0.05R MAX 1/8W R448 061G1206301 JT RST CHIPR 300 OHM +-5% 1/4W TZAI YUAN R449 061G1206301 JT RST CHIPR 300 OHM +-5% 1/4W TZAI YUAN C120 065G040210232K CAP 0402 1NF 10% 50V X7R C417 065G040210412K CAP 0402 100NF 10% 16V X7R C418 065G040210412K...
- Page 49 C413 065G0805475A2K CAP 0805 4U7 10V X7R +/-10% C404 065G0805475A2K CAP 0805 4U7 10V X7R +/-10% C401 065G0805475A2K CAP 0805 4U7 10V X7R +/-10% FB407 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB409 071G 56K121 M CHIP BEAD 120OHM 6A MGLB2012-120T-LF FB408 071G 56V301 M CHIP BEAD 0805 300R 25% 700mA...
- Page 50 R805 061G0805104 JT RST CHIPR 100KOHM +- 5% 1/8W TZAI YUAN R808 061G0805109 JF RST CHIPR 1 OHM +- 5% 1/8W FENGHUA R807 061G0805109 JF RST CHIPR 1 OHM +- 5% 1/8W FENGHUA R815 061G0805164 JF RST 0805 160K 5% 1/8W R810 061G08052002FT RST CHIP 20K 1/8W 1%...
- Page 51 C606 065G060347412K CAP CHIP 0.47uF 16V +/-10% X7R C602 065G060347412K CAP CHIP 0.47uF 16V +/-10% X7R C601 065G060347412K CAP CHIP 0.47uF 16V +/-10% X7R C813 065G080510131J CAP CHIP 0805 100PF J 50V NPO C812 065G080510131J CAP CHIP 0805 100PF J 50V NPO C923 065G080510232K CAP 0805 1000PF 10% 50V X7R...
- Page 52 FB903 071G 55 29 FERRITE BEAD FB802 071G 55 29 FERRITE BEAD FB901 071G 55 29 FERRITE BEAD F903 084G 56 4 B FUSE 4A 250V F901 084G 56 4 B FUSE 4A 250V F902 084G 56 4 B FUSE 4A 250V ZD901 093G 39A6852T ZENER DIODES MTZJ22B DO-34...