Service Manual Service Manual LCD Monitor E2209Wf 0
1 Service Manual Versions and Revision No. Version Release Date Revision 1 1.0 2008-6-3 Initial Release Copyright Copyright 2007 InnoLux Display. Corp. Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Foxconn Tech. Corp. Ltd.
Service Manual Table of Contents CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ...................................................................................................................... 3 1. 2. 3. SAFETY PRECAUTIONS...................................................................................................................................................... 3 PRODUCT SAFETY NOTICE ..................................................................................................................
Service Manual Chapter 1- PRECAUTIONS & SAFETY NOTICES SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user. WARNINGS: This monitor should be operated only at the correct power sources indicated on the rating label on the rear cover of the monitor. If you’re unsure the power supply in your residence, consult your local dealer or Power Company.
Service Manual Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED 1. 2. 3. 4. 5. 6. 7. 8. 9.
Service Manual Chapter 3- CIRCUIT THEORY Block Diagram There are 3pcs PCBA in this monitor, one is power& inverter&Audio board which is a single layer board, one is interface board including USB HUB 1up/2down, one is keypad which is OSD control, and one is USB transfer board located on the right side back cover. The system function block diagram as below This PWA is included switching power supplier, inverter for CCFL and interface board.(fig.1) INVERTER POWER Fig.
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Service Manual Electronic Circuit Theory 2.1 Inverter PWM circuit 2.1.1)Inverter Control circuit:(fig.2) Fig.2 27VDC provides the power for U1; the control signals Brightness and ON/OFF come from I/F board. ON/OFF signal connect to pin16 of U1 and makes U1 enable. Brightness signal connect to pin12 of U1 and regulates the panel brightness, make up a network of delaying time circuit and R23 make up a divided voltage network, C3 is used to control start-up timing.
Service Manual Over Voltage Protection and over-current protection are monitored by the voltage on VSEN(Pin 1) During normal operation , if a CCFL is damaged or removed ,the voltage at VSEN (Pin1) increases .Once the voltage at VSEN exceeds 3.0V (OVPT Setting) the driver output duty cycle is regulated and the shutdown delay timer is activated. OVPT set the overall protection threshold voltage that is lower than 3V (VSEN threshold).
Service Manual voltage is from 90V to 264V. R850/R851/R852 are joined between two inputting main circuit to prevent man from shock. L850 is used to filter low frequency noise. C850 and C851 are used to discharge the noise that L850 produced. High frequency waves are damped by C852; 2.2.3)High Voltage to Low Voltage Control Circuit:(fig.6) fig.6 D850 is a rectifier in which there are 4 build-in diodes, inverting AC to DC. C854 is used to smooth the wave from rectifier.
Service Manual When the sense voltage across the sense resistor R859, reaches the threshold voltage around 0.85v, the output GATE drive will be turned off. Every time when the output of power supply is shorted or over loaded, the FB voltage will increase, the build-in PWM output will then be turned off. Both of two will prevent the power supply from being overheated under over loading condition.
Service Manual 2.3 I/F Board Circuit (see the Attachment 2- Schematic) 2.3.1 RGB CAPTURE - Signal RED,GREEN,BLUE input through CN102 #1,#2,#3, Stop DC via C113, C114 and C115, and then enter into U105 (TSUMU58EHJ-LF-2) analog input PIN #28,#25,#23, and then TSUMU58EHJ-LF-2 deals with signal internally. D103, D104, D105 are ESD protector to prevent U105 from ESD. - Signal DDC_SCL (series clock) inputs via CN102#15, and then passes through ZD106 for ESD protection, goes into EDID EEPROM IC U103 #6.
Service Manual - U105 (TSUMU58EHJ-LF-2) #73 output PPWR ”H” potential to make Q104 conducted, and then make Q101 conducted, +5V flow to CN103#1~#3 as Panel Vdd . - U105 (TSUMU58EHJ-LF-2) #109 output CCFL_ON/OFF ”L” potential to control Inverter on/off. - U105 (TSUMU58EHJ-LF-2) #125 outputs Brightness “PWM” signals to control CCFL brightness. - TCLK by Crystal 14.318MHz input to U105 (TSUMU58EHJ-LF-2) #128/#127.
Service Manual Power supply for panel+5V VDD 90% 90% 10% 0V 10% T1 T2 T5 Signals (Digital RGB, HS, VS, DE, CLOCK) 0V T6 T7 Valid data T3 T4 Power supply for backlight SPEC(Samsung) SPEC (INL) T1(ms) 0.3~10 0.1~10 T2 (ms) 0.0~50 0.0~50 T3 (ms) >500 >200 T4 (ms) >100 >100 T5 (ms) 0.0~50 0.0~50 T6 (ms) NA >0.1 T7(ms) >1000 >1000 5. D-SUB Connector Pin Assignment Pin 1 2 3 4 5 Symbol Red Green Blue GND Cable Detect Pin 6 7 8 9 10 Symbol Red_GND Green_GND Blue_GND PC+5V GND 6.
Service Manual 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 GND_LVDS RXE3+ RXE3RXEC+ RXECRXE2+ RXE2GND_LVDS RXE1+ RXE1GND_LVDS RXE0+ RXE0RXO3+ RXO3RXOC+ RXOCGND_LVDS RXO2+ RXO2RXO1+ RXO1RXO0+ RXO0- LVDS Ground LVDS signal of even channel 3(-) LVDS signal of even channel 3(+) LVDS signal of even channel clock (+) LVDS signal of even channel clock (-) LVDS signal of even channel 2(+) LVDS signal of even channel 2(-) LVDS Ground LVDS signal of even channel 1(+) LVDS signal of even cha
Service Manual 8.
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Service Manual 8.1 U108 (Serial Flash) Pin Symbol I/O 1 CE# I 2 3 SO WP# I/O I/O 4 5 VSS SI G I/O 6 SCK I/O 7 HOLD I/O 8 VDD P Description The device is enabled by a high to low transition on CE#. CE# must remain low for the duration of any command sequence. To transfer commands, addresses, or data serially into the device. The write protect (WP#) pin is used to enable/disable BPL bit in the status register.
Service Manual 8.3 U850 (LD7552B, PWM Power Controller) Pin Symbol I/O Description 1 GND Ground 2 COMP I Voltage feedback pin(same as the COMP pin in UC384X).By connecting a photo-coupler to close the control loop and achieve the regulation. 3 VCC I Supply voltage pin 4 RT I This pin is to program the switching frequency. By connecting a resistor to ground to set the switching frequency.
Service Manual Chapter 4- Disassembly & Assembly 1.
Service Manual 2. E2209WFPf Disassembly Block Note: 1. The arrows point out the direction of disassembly.
Service Manual 3. Assembly Block Note: 1.
Service Manual Chapter 5- TEST AND ADJUSTMENT 1. Function key Definitions Menu Enter Power Power Switch with power LED indicator Power: On/Off, includes power indicator and Power ICON green- Active On Front Panel Controls Amber- DPMS 1- Input select: Select input signal 2- Menu: Call out OSD Menu and choose 3- (): symbol molded into button, calls out brightness/Contrast, move down the highlight bar.
Service Manual Factory mode.
Service Manual Factory Mode Introduction With signal input, press “Power” button to turn off the monitor. Press “Menu” and “Auto/Plus” buttons together, and then press “Power” button to turn on the monitor. After power on.Press “Plus Key”, enter Factory mode (Fig.10). Fig9 Fig10 Back: Exit from Factory mode and back to NO OSD Status. Panel: The current-setting panel is highlighted. Auto Color: Automatically calibrate chip ADC parameters by using internal DAC.
Service Manual Burn In: Enable or disable the Burn-in mode by choosing ON or OFF. Reset Timer: Reset the “Turn-on time” of the panel to 0H0M. Color Temp: The R, G, B of Blue Preset (9300K), Red Preset (5700K) and Normal Preset (6500K) are generated from scaling chip’s back-end white-balance program. Time: Turn-on time of the panel. DEBUG: Debug tool of scale IC U104.
Service Manual Fig 11 ※ The detailed reprogramming procedures will be described in ISP User's Guide. After repair, to ensure the quality you should do the following test and adjustment.
Service Manual Item Test OSD function Content Equipment 1.Signal is set as 1680×1050@60Hz under General-1 Chroma Signal Generator 2. LCM button are from left to right, checking whether each single function key and compound function key can be worked. Contrast Check 1. Set input mode to 1680×1050@60Hz 2. Set to 32gray scale pattern 3. Set contrast to the maximum. At most 6 bars cannot be distinguished. 1. Do “Auto color Balance” at 1680×1050@60Hz, 32gray scale pattern 2.
Service Manual Chapter 6- TROUBLE SHOOTING Common Acknowledge If you change the M/B, be sure that the U101,U102 and U105 these three components also changed to the new M/B because there was program inside. If not, please re-write EDID or upload firmware into serial flash(U105) via VGA Cable. How to do please refer to the Page 19. If you adjust clock and phase, please do it at condition of Windows shut down pattern. Please confirm the R/G/B color under 32gray scale pattern.
Service Manual Power(include IF +5Vand +3.3V) supply normal but LED off and no display Is the key function OK? Yes Press power key to DC on the monitor, if display ok the process is end, if no display see the no backlight process NO NO Is the frequency 14.
Service Manual Power (include IF +5Vand +3.3V) supply and display normal but LED Amber Is Power LED Amber? YES Do the Hsync. & Vsync. Signals exist in CN102 #13& #14 separately when select VGA mode by OSD? NO Insert VGA Cable correctly YES Do the Hsync. & Vsync. Signals exist in R133 & R134? NO Check R133 & R134 YES Do the Hsync. & Vsync.
Service Manual 4.Power (include IF +5Vand +3.3V) supply normal ,key function OK,but backlight can’t be turned on No backlight Yes LED lamp is OK No No power supply to inverter Yes Check the cable that from I/F BD to P/I BD is ok Yes No Is there 27V Voltage on Pin 7,8 & 13,14 of T1 Q6, Q7 fail Yes No Is there PWM signal on Pin13 of U1 No Check power supply Yes Replace Q6, Q7 Check I/F BD Yes No Is there High level voltage on Pin16 of U1 Check I/F BD Yes Yes Vsense voltage is 2.
Service Manual 5. Backlight on, key function and LED accurate indication ok but no picture Backlight on ,key function and LED accurate indication ok but no picture YES YES IS the display is white and cannot display OSD when press key? Check DC 5.
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Service Manual Chapter 7- RECOMMENDED PART LIST Content PI BD IF BD PN Description 412000628810R IC LD7552BPS 412000654630R Supplier SOP8(Leadtrend)ROHS Usage LEADTREND, 1 IC INL833GN SOP16(O2 MICRO)Rohs O2, 1 426000091010R XFMR SW DIP ERL28 PC40 550uH SPW-101 RoH FOXCONN,FRONTIER,LISHIN,MEIKAI, 0 426000091160R XFMR SW DIP EEL22 P4 4.16H DARFON,FOXCONN,HUALON,LISHIN, 1 420431014083R CAP SEK 100uF/450V M,105℃ CF 18x40(2.
Service Manual ATTACHMENT 1- Bill of Material 1. Interface board BOM 2E+07 ITEM P/N 791701300B00R 10 629030018710R 20 791701320600R 30 791701340600R 40 511130001200R 50 641120000010R Description PCBA,I/F BOARD W/O SPK,LE22F4-B12 ROHS PROGRAM,W/O SPK LE22F4-B12 ROHS PCBA,I/F BOARD,MI,W/O SPK,LE22F4-612 ROH PCBA,I/F BOARD,SMT,W/O SPK,LE22F4-612 RO SOLDER BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.
Service Manual 320 320 320 330 340 340 340 350 350 412000435481R 412000480280R 412000480990R 412000653060R 412000224482R 412000224280R 412000481990R 412000494190R 412000494310R IC AT24C02BN-SH-T 2K SOIC8(ATMEL)RoHS IC M24C02-RMN6TP SO8(ST)RoHS IC CAT24C02WI-TE13 SOIC-8(CATALYST)RoHS IC TSUMU58EHJ-LF-2 PQFP128(MSTAR)Rohs IC AT24C16BN-SH-T 16K(ATMEL) SOIC 8 ROHS IC M24C16-WMN6TP SO8 16K (ST) ROHS IC CAT24C16WI-TE13 SOIC-8(CATALYST)RoHS IC SST25LF020A-33-4C-SAE SOIC8(SST)ROHS IC PM25LV020-100SCE SOIC8(PMC)Ro
Service Manual 280 432002200190R FERR BEAD 3.5x9x0.65,VT,RoHS,RH03509ST-B CHILISIN,TAI-TECH, 2 L857,L858, 290 511130001200R SOLDER BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0 TOMAS, 8.2 300 511110000103R HOT-MELT ADHESIVES,UB-618 U-BOND, 1.45 300 511110000101R HOT-MELT ADHESIVES (#526) EXCELSTAR, 310 511110000501R SILICONE RTV RUBBER,UB-511(EURO) EURO, ITEM P/N Description Supplier 0 0.
Service Manual 220 414908100910R RES SMD(0805)10Ω F,RT ROHS TA-I,UNIOHM,WALSIN,YAGEO, 2 R856,R7, 240 414908330110R RES SMD (0805) 3.3KΩ F,RT RoHS REV:A TA-I,UNIOHM,WALSIN,YAGEO, 1 R868, 250 414908039250R RES SMD (0805) 3.9KΩ J,RT RoHS TA-I,UNIOHM,WALSIN,YAGEO, 1 R872, 270 411023004021R DIO SN4148-LF 75V/0.15A SMD 1206 (FEC)Ro FRONTIER, 1 D841, 270 411020046090R DIO 1N4148W 75V/0.15A(PEC)RoHS SOD-123 PANJIT, 0 DIO 1N4148W-F 75V/0.
Service Manual 50 411130930010R ZENER 30V GDZ30A DO35(PANJIT)RoHS PANJIT, 0 60 430613050100R FUSE SLOW PICO II 5A/125V U/C,AT,ROHS LITTELFUSE, 1 F851, 60 430613050101R FUSE SLOW 5A/125V U/C,AT,ROHS WALTER, 0 70 491571400100H PCB,P/I HSIANGKUO,TAT CHUN, ,1/OSP /CEM1/16,LE22F4-612 1 80 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 7.5MM HOTRON,YUANYE, 400 J1,J2,J5,J11,J12,J13,J14,J15, 80 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 7.5MM HOTRON,YUANYE, 90 430405000000R JMPR ROLL/KG D=0.
Service Manual 10 411070094500R A 30 491571500000H LED SMD YB HTL-19-22UYUBC/TR8(HongTong)R HONGTONG, 0 PCB,K/P 1 ,2/ENIG/FR4 /10.LE22F4-612 EXPRESS,WELFARE, 4.Assembly BOM 20080403 ITEM Phant.item P/N Description 8221F4B1D010R LE22F4-B12(B)W/O SPK,US(DAO/E2209Wf) 10 453070800150R PWR CORD 10A/125V BLK 6FT UL/CSA SVT 3Cx 20 30 40 50 453010100320R x x CABLE D-SUB 15P MALE 6FT BLACK/BLUE AB 8 453030300440R CABLE DVI-D 18+1P MALE 1.
Service Manual 713010000903R 506150006900R 506037009500R 506039005410R 506039001400R 506431000300R 506120400100R 506380002612R ASSY PACK,AIR CARGO(20STD),LE22F4 PALLET L1284xW914xH120mm LE1746 CARDBOARD,COVER,L1192xW898xH100xT3mm,LE2 CORNER PAPER 800x50x50xT3mm LE1718 CORNER PAPER 200x50x50mm ROHS FILM,PE 500mmx900M ROHS BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS TAPE,WRAPPING TYPE,50Mx82mm 20080329 ITEM Phant.
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Service Manual Attachment 3- PCB Layout power/inverter bd: power/inverter board: Top Layer 49
Service Manual Bottom Layer 50