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19" LCD Monitor
Service
Service
Service
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 Menu.............................................................8
4.Input/Output Specification........................................13
4.1.Input Signal Connector..........................................13
4.2.Preset Display Modes................................13
4.3.Panel Specification...........................................14
5.Block Diagram............................................................17
5.1.Main Board.....................................................17
5.2.Power Board..................................................18
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
6.Schematic..........................................................19
6.1.Main Board.......................................................19
6.2.Power Board....................................................23
6.3.Key Board....................................................25
7.PCB Layout.........................................................26
7.1.Main Board......................................................26
7.2.Power Board.....................................................28
7.3.Key Board........................................................30
8.Maintainability.....................................................31
8.1.Equipments and Tools Requirement.................31
8.2.Trouble Shooting.............................................32
9.White-Balance,Luminance Adjustment...............36
10.Monitor Exploded View......................................38
11.BOM List......................................................39
SAFETY NOTICE
1
AOC 919SWN
Horizontal Frequency
30- 80kHz
Page
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Summary of Contents for AOC 919SWN
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Page 1: Table Of Contents
19" LCD Monitor AOC 919SWN Service Service Service Horizontal Frequency 30- 80kHz Table of Contents Description Page Description Page Table of Contents…………………..…………………..…...1 6.Schematic…………..….........19 Revision List.…...........……..2 6.1.Main Board..…….…...........19 Important Safety Notice.….…......……..3 6.2.Power Board..……….........23 1.Monitor Specification......………....4 6.3.Key Board..……….........25 2.LCD Monitor Description……….……………………..5 7.PCB Layout..………..........26 3.Operation Instruction.…………....……...6... -
Page 2: Revision List
Revision List Version Release Date Revision History TPV Model Name Initial release T9BAR5NEWKA1NNE Dec.-14-2011... -
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 Model name 919SWN Driving system TFT Color LCD Viewable Image Size 481mm diagoanl Pixel pitch 0.2835mm(H) x 0.2835mm(V) LCD Panel Video R, G, B Analog lnterface Separate Sync. H/V TTL Display Color 16.7M Colors Dot Clock 106 MHz... -
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 board will provide DC to DC Inverter voltage to drive the backlight of panel. Monitor Block Diagram Flat Panel with CCFL Drive... -
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 Turn off your computer before performing the procedure below. Connect the power cable to the AC port on the back of the monitor. 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 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- or +to change the settings of the selected function. - Page 9 Function Control Illustration Luminance Adjust Range Description Brightness 0-100 Backlight Adjustment Contrast 0-100 Contrast from Digital-register. Standard Mode Standard Text Mode Text Eco mode Internet Mode Internet Game Mode Game Movie Mode Movie Sports Mode Sports Gamma1 Adjust to Gamma1 Gamma Gamma2 Adjust to Gamma 2...
- Page 10 from EEPROM. Recall Normal Color Temperature Normal from EEPROM. 7300K Recall Cool Color Temperature from Cool EEPROM. 9300K Recall SRGB Color Temperature sRGB from EEPROM. User-R Red Gain from Digital-register User User-G Green Gain Digital-register. User-B Blue Gain from Digital-register Color Boost Disable or Enable Full Enhance Full Enhance...
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Page 11: Led Indicators
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 12 You can click “RESET” to set the e-Saver to its default settings like below. 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.
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Page 13: Input/Output Specification
4. Input/Output Specification 4.1 Input Signal Connector Analog connectors Pin Number 15-Pin Side of the Signal Cable Video-Red Video-Green Video-Blue N.C. Ground GND-R GND-G GND-B Detect Cable N.C. DDC-Serial data H-sync V-sync DDC-Serial clock 4.2 Preset Display Modes HORIZONTAL VERTICAL STAND RESOLUTION FREQUENCY(kHZ) -
Page 14: Panel Specification
4.3 Panel Specification 4.3.1 General Features This specification applies to the 19 inch-wide Color TFT-LCD Module M190PW01.The display supports the WXGA+ (1440(H) x 900(V)) screen format and 16.7M colors(RGB 6-bits+HiFRC). All input signals are 2-Channel LVDS interface compatible. This module does not contain an inverter board for backlight. 4.3.2 General Specifications 4.3.3 Electrical Characteristics 1. - Page 15 Each signal characteristics are as follows; Note: LVDS Signal Waveform...
- Page 16 2.Backlight lamp Ta = 25 ± 2 ºC 4.3.4 Optical Characteristics...
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Page 17: Block Diagram
5. Block Diagram 5.1 Main Board TSUM1PFR SCHEMATIC XGA/SXGA LVDS OUTPUT DSUB_R+ DSUB_R+ VCC1.8 DSUB_R- DSUB_R- DSUB_G+ DSUB_G+ VCC3.3 DSUB_G- DSUB_G- VCC1.8 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... -
Page 18: Power Board
5.2 Power Board AC input Bridge Transformer Rectifier EMI filter Rectifier diodes (T901) and Filter Start Resistor (R904,R932,R933) Feedback Power Switch PWM Control (Q901) Circuit LD7575A (IC901) Photo coupler Regulator (IC902) (IC903) Output Transformer MOSFET Circuit (PT801) (Q802) Lamp PWM Control ON/OFF Feedback TL494IDR... -
Page 19: Schematic
6. Schematic 6.1 Main Board 715G3244 2 2 FB102 R104 C101 H_Sy nc VGA_B+ R101 0R05 1/10W 5% R102 100R 1/16W 5% DSUB_H DSUB_B+ 5 V_Sy nc R103 100R 1/16W 5% BEAD DSUB_V 100R 1/16W 5% 0.047uF R107 C104 R105 R106 C102 C103... - Page 20 FB401 Flash. U401 VCC3.3 30OHM VCTRL VCTRL U402 C403 C404 LVA3P 0.1uF/16V 1UF 10V DSUB_R+ RIN0P LVA3M 010A Befor AOC ID2007 OSD DSUB_R- RIN0M PA[0..1] DSUB_G+ GIN0P PA[0..1] DSUB_G- 020A For ID2008 ID2009 GIN0M LVA2P DSUB_SOG SOGIN0 LVA2M DSUB_B+ BIN0P...
- Page 21 PANEL_VCC PA[0..1] PA[0..1] CN403 PA[4..9] PA[4..9] NC/R477 R434 C420 330OHM1/4W 150R 1/4W 5% 0.1uF/16V PANEL_VCC CN405 PB[0..9] PB[0..9] AO3401L NC/CONN CMVCC CONN 2006-11-7 Add pull up 4K7 to MVCC CMVCC 4,5,7 C419 R433 0.1uF/16V R435 10K 1/16W 5% Q411 4K7 1/16W 5% Q405 NC/AO4411 AO3401...
- Page 22 CMVCC CMVCC1 VCC3.3 VCC3.3 VCC3.3 4,5,6 CMVCC R480 R465 R437 R439 2.2 OHM 2W VCC1.8 10K 1/16W 5% 10K 1/16W 5% R479 CN404 BKLT-EN VCC1.8 CMVCC1 Q410 Q406 MMBT2907AK CMVCC 2N3904S-RTK/PS C432 C423 CMVCC1 4,5,6 CMVCC C425 BKLT-VBRI R450 R449 Q409 0.1uF/16V 100uF/25V...
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Page 23: Power Board
6.2 Power Board 715G2852 3 11 R918 100 OHM 1/4W L904 R919 +12V 1.1uH 100 OHM 1/4W C912 ZD902 0.001uF C930 RLZ13B R920 C922 R946 100 OHM 1/4W 470PF50V 150 OHM 2W 0.1uF C917 C918 680UF25V 680UF25V T901 R943 BD901 Q903 470R 1/8W D906... - Page 24 CN801 CONN C839 T801 R821 1500PF50V POWER X'FMR R817 1K 1/8W 10K 1/10W 1% R855 D805 15R 1/4W LL4148 C819 C801 F801 0.0022uF 30pF/3KV D801 +12V BAV99 0 OHM 1/4W C802 R804 Q801 470UF25V C824 R856 R801 100R 1/8W PMBS3904 D810 0.1uF 15R 1/4W...
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Page 25: Key Board
6.3 Key Board 715G2835 2 LED_RED# LED_GRN# LED001 CN001 LBADC1 R002 1.8K OHM 1/4W LBADC2 R003 3K 1/10W 5% DC_POWERON LED_GRN# R004 1.8K OHM 1/4W LED_RED# R005 3K 1/10W 5% C001 C002 C003 C004 C005 CONN NC/0.001uF NC/0.001uF NC/0.001uF NC/0.001uF NC/0.001uF SGND SW005... -
Page 26: Pcb Layout
7. PCB Layout 7.1 Main Board 715G3244 2 2... -
Page 28: Power Board
7.2 Power Board 715G2852 3 11... -
Page 30: Key Board
7.3 Key Board 715G2835 2... -
Page 31: 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 32: 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 33 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 34 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 35 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 36: 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 37 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 38: Monitor Exploded View
10. Monitor Exploded View... -
Page 39: Bom List
AM1G1740 12 47 CR3 SCREW H15G0022702 MAIN FRAME H40G 45762413B P/N LABEL FOR BASE H44G9033101 H44G9033201 H44G9033615 8A ARTWORK CARTON 919SWN WW H45G 77 6 PE PACKING H45G 87 18 4H EPE COVER H70G19C161503A 919SWN CD MANUAL KEPCBHA3 KEY BOARD... - Page 40 AC POWER CORD 1500mm E08901 089G404A15N IS AC POWER CORD 1500 2nd source H40G 18N61583A 917 919 2236 CIS ID LABEL H40G000261589A 919SWN CIS CARTON LABEL H41G780961529A AP WARRANTY booklist CN408 033G3802 6B Y WAFER CN404 033G3802 9B Y CONN 2.0 9P...
- Page 41 C421 067G 3051014PT EC 100UF 20% 25V 6.3*11 CD263 C427 067G 3051014PT EC 100UF 20% 25V 6.3*11 CD263 709G3244 HA002 CONSUMPTIVE ASS'Y U401 056G 562266 IC Scaler RTD2270S-GR LQFP-64 U404 056G 563 52 LDO AP1117D33G-13-77 U102 056G 662 48 ESD PROTECT AZC399-04S.R7G SOT23-6L U103 056G 662 48 ESD PROTECT AZC399-04S.R7G SOT23-6L...
- Page 42 R106 061G0402222 JY RST CHIPR 2.2KOHM +-5% 1/16W YAGEO R105 061G0402222 JY RST CHIPR 2.2KOHM +-5% 1/16W YAGEO R109 061G04023900FY RST CHIP 390R 1/16W 1% R403 061G04023900FY RST CHIP 390R 1/16W 1% R427 061G0402392 JY RST CHIPR 3.9KOHM 5% 1/16W YAGEO R428 061G0402392 JY RST CHIPR 3.9KOHM 5% 1/16W YAGEO...
- Page 43 FB101 071G 59K190 M CHIP BEAD 0603 19R/500mA FB102 071G 59K190 M CHIP BEAD 0603 19R/500mA FB103 071G 59K190 M CHIP BEAD 0603 19R/500mA FB401 071T 56300 TA CHIP BEAD 30OHM 5000mA HCB2012KF-300T50 D403 093G 64 42 L DIODE LBAV70LT1G SOT-23 LRC ZD103 093G 39GA01 T RLZ5.6B...
- Page 44 R863 061G06031002FT RST CHIP 10K 1/10W 1% R835 061G0603105 JT RST CHIP 1M 1/10W 5% TZAI YUAN R862 061G0603105 JT RST CHIP 1M 1/10W 5% TZAI YUAN R814 061G06031501FT RST CHIP 1K5 1/10W 1% R801 061G06031501FT RST CHIP 1K5 1/10W 1% R930 061G06032431FT RST CHIPR 2.43KOHM +-1% 1/10W TZAI YUAN...
- Page 45 R900 061G1206684 JT RST CHIPR 680 KOHM +-5% 1/4W TZAI YUAN C932 065G060310231J CHIP 0603 1000pF 50V NPO C842 065G060310332K CAP 0603 10NF 10% 50V X7R C807 065G060310432K CAP 0603 100NF 10% 50V X7R C821 065G060310432K CAP 0603 100NF 10% 50V X7R C825 065G060310432K CAP 0603 100NF 10% 50V X7R...
- Page 46 C903 067G 2152207NT KY50VB22M-TP5 5*11 F901 084G 56 3 B FUSE 3.15A 250V D901 093G 6038T52T FR103 AO J801 095G 90 23 JUMPER WIRE J802 095G 90 23 JUMPER WIRE J803 095G 90 23 JUMPER WIRE J804 095G 90 23 JUMPER WIRE J805 095G 90 23...
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