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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........................................24
4.1.Input Signal Connector..........................................24
4.2.Preset Display Modes...... ..........................25
4.3.Panel Specification...........................................26
5.Block Diagram............................................................28
5.1.Main Board.....................................................28
5.2.Power Board..................................................29
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..........................................................30
6.1.Main Board.......................................................30
6.2.Power Board....................................................34
6.3.Key Board....................................................36
7.PCB Layout.........................................................37
7.1.Main Board......................................................37
7.2.Power Board.....................................................39
7.3.Key Board........................................................42
8.Maintainability.....................................................43
8.1.Equipments and Tools Requirement..................43
8.2.Trouble Shooting.............................................44
9.White-Balance,Luminance Adjustment.................48
10.Monitor Exploded View......................................50
11.BOM List......................................................51
AOC e2050Sw
Horizontal Frequency
30 - 83kHz
Page
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Related Manuals for Energy Star e2050sw
Summary of Contents for Energy Star e2050sw
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Page 1: Table Of Contents
19.5" LCD Monitor AOC e2050Sw Service Service Service Horizontal Frequency 30 - 83kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.Schematic…………..….........30 Revision List.…...........……..2 6.1.Main Board..…….…...........30 Important Safety Notice.….…......……..3 6.2.Power Board..……….........34 1.Monitor Specification......………....4 6.3.Key Board..……….........36 2.LCD Monitor Description……….……………………..5 7.PCB Layout..………..........37... -
Page 2: Revision List
Revision List Version Release Date Revision History TPV Model Name T9CMR96BAGA2NNE T9CMR96BAGA3NNE T9CMR96BAGACNNE Initial release Dec.-17-2012 T9CMR96DAGACNNE T9CMR96QAGAC7NE... -
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, an adapter 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. Power 2. Analog (DB-15 VGA cable) 3. DVI (Optional) 4. Audio(Optional) 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 Connect one end of the 15-pin D-Sub cable to the back of the monitor and connect the other end to the computer's D-Sub port.
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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 Press (Menu) to display menu. Press to select (Luminance), and press to enter. Press to select submenu, and press to enter. Press to adjust.
- Page 10 Press two times to exit.
- Page 11 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 12 Press two times to exit.
- Page 13 Color Setup Press (Menu) to display menu. Press to select (Color Setup), and press to enter. Press to select submenu, and press to enter. Press to adjust.
- Page 14 Press two times to exit.
- Page 15 Picture Boost Press (Menu) to display menu. Press to select (Picture Boost), and press to enter. Press to select submenu, and press to enter. Press to adjust.
- Page 16 Press two times to exit.
- Page 17 OSD Setup Press (Menu) to display menu. Press to select (OSD Setup), and press to enter. Press to select submenu, and press to enter. Press to adjust.
- Page 18 Press two times to exit.
- Page 19 Extra Press (Menu) to display menu. Press to select (Extra), and press to enter. Press to select submenu, and press to enter. Press to adjust.
- Page 20 Press two times to exit.
- Page 21 Exit Press (Menu) to display menu. Press to select (Exit), and press to enter. Press two times to exit...
- Page 22 LED Indicators Status LED Color Full Power Mode Green or Blue Active-off Mode 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 23 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 software to install it.
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Page 24: Input/Output Specification
4. Input/Output Specification 4.1 Input Signal Connector... -
Page 25: Preset Display Modes
.2 Preset Display Modes... -
Page 26: 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 27 Back Light Unit Ta = 25 ± 2.º C 4.3.4 Optical Characteristics...
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Page 28: Block Diagram
5. Block Diagram 5.1 Main Board 715G4737M02000004I XGA/SXGA LVDS OUTPUT DSUB_R+ DSUB_R+ VCC1.2 DSUB_R- DSUB_R- DSUB_G+ DSUB_G+ VCC3.3 DSUB_G- DSUB_G- VCC1.2 DSUB_SOG DSUB_SOG DSUB_B+ DSUB_B+ DSUB_B- DSUB_B- VCC3.3 CMVCC1 DSUB_H DSUB_H DSUB_V DSUB_V DDC1_SDA DDC1_SDA DDC1_SCL DDC1_SCL DET_CABLE DET_CABLE CMVCC1 CMVCC1 EDID_CTRL EDID_CTRL... -
Page 29: 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 (Q801) (CN804) PWM Control ON/OFF OZ9998BGN (U801) -
Page 30: Schematic
6. Schematic 6.1 Main Board 715G4737M02000004I FB102 R104 C101 H_Sy nc VGA_B+ R101 0R05 1/10W R102 100R 1/16W 5% DSUB_H DSUB_B+ V_Sy nc R103 100R 1/16W 5% BEAD DSUB_V 100R 1/16W 5% 47nF 16V R107 C104 R105 R106 C102 C103 2K2 1/16W 5% 2K2 1/16W 5% 75 OHM +-5% 1/16W... - Page 31 VCC3.3 C436 100N16V AVDD VCC1.2 VCC3.3 AVDD FB401 VCC3.3 30OHM LDO_CTL VCTRL C403 C404 TXE3+ 100N16V 100N16V DSUB_R+ TXE3- DSUB_R- PA[0..1] DSUB_G+ PA[0..1] DSUB_G- TXE2+ DSUB_SOG SOG0 TXE2- DSUB_B+ TXE1+ DSUB_B- TXE1- VCC1.2 DSUB_H HSY NC0 TXE0+ DSUB_V VSY NC0 TXE0- DDC1_SDA VCC1.2...
- Page 32 PANEL_VCC L/T_SCL PA[0..1] PA[0..1] L/T_SDA CN403 CN405 for 18.5" panel PA[4..9] (single LVDS channel) PA[4..9] R477 R434 C420 L/T_SDA PANEL_VCC 300 OHM 1/4W 300 OHM 1/4W L/T_SCL 100N16V CN405 L/T_SDA L/T_SCL PB[0..9] PB[0..9] CONN NC/CONN CMVCC R488 reserved for fixing inrush current issue CMVCC C419 R433...
- Page 33 CMVCC CMVCC1 VCC3.3 VCC3.3 VCC3.3 CMVCC R465 R437 R439 R480 NC/1.5 OHM +-5% 2WS VCC1.2 10K 1/16W 5% 10K 1/16W 5% R479 CN404 0R05 1/4W BKLT-EN VCC1.2 CMVCC1 Q410 CMVCC MMBT2907A C432 C423 CMVCC1 CMVCC C425 BKLT-VBRI R450 R449 Q406 100N16V 100UF 16V on_BACKLIGHT...
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Page 34: Power Board
6.2 Power Board 715G4744P01003001M 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 680UF/25V T901 D901 POWER X'FMR SR515 R905 470OHM +-5% 1/8W... - Page 35 FB802 D801 L801 CN803 +14.5V C801 47UH BEAD Q801 330uF 25V R804 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 R802 10 OHM 1% 1/4W C809 R805 300K 1/8W...
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Page 36: 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 37: Pcb Layout
7. PCB Layout 7.1 Main Board 715G4737M02000004I... -
Page 39: Power Board
7.2 Power Board 715G4744P01003001M... -
Page 42: Key Board
7.3 Key Board 715G4747K02000001C... -
Page 43: 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 44: 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 45 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 46 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 47 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 48: 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 49 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 50: 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 51: Bom List
A37G0241013 HINGE 20 AM1G1740 10125 SCREW H40G 001624 1A CARTON LABEL BARCODE 1 H40G 45762413B P/N LABEL FOR BASE H40G020N61557A RATING LABEL e2050SW EU H44GA016101 CUSHION-T H44GA016201 CUSHION-B H44GA01661509A00HX ARTWORK CARTON E2050SW 19.5 H70G21C161511A CD MANUAL for 50s all Models... - Page 52 CN101 088G 35315FVXH D-SUB CONN V/T 15P BLUE 1*1 V/T 30.8 X401 093G 22 53CEC CRYSTAL S-F-14.31818M-32-3030-2085-30 709G4737 HM002 COMSUPTIVE ASS'Y AIGCR9A1H7 MAIN BOARD FOR AI H40G 45762429A LABEL LED001 081G 12 1F GH LED GREEN/YELLOW GHZYG603D2-5B CN001 095G820H 6TE10 HARNESS 6P(SANW)-6P(2008) 120mm 709G4747 HM001 COMSUPTIVE ASS'Y...
- Page 53 R804 061G0805100 JF RST CHIPR 10 OHM +-5% 1/8W FENGHUA 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...
- Page 54 C924 065G080510432K CAP CHIP 0805 0.1UF K 50V X7R 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...
- Page 55 C801 067G215D3314KT EC 330UF 20% 25V 10*12 ED C913 067G215Y4707KT EC 47uF 20% 50V 6.3*11mm EG 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...
- Page 56 R104 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R111 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R102 061G0402101 JT RST CHIP 100R 1/16W 5% TZAI YUAN R442 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN R109 061G0402102 JT RST CHIP 1K 1/16W 5% TZAI YUAN...
- Page 57 C420 065G040210412K CAP CHIP 0402 100nF K 16V X7R C413 065G040210412K CAP CHIP 0402 100nF K 16V X7R C414 065G040210412K CAP CHIP 0402 100nF K 16V X7R C428 065G040210412K CAP CHIP 0402 100nF K 16V X7R C401 065G040210412K CAP CHIP 0402 100nF K 16V X7R C416 065G040210412K CAP CHIP 0402 100nF K 16V X7R...
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