Service Manual Service Manual LCD Monitor S1909WXf -0-
1 Service Manual Versions and Revision No. Version Release Date Revision 1 1.0 2008/07/10 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................................................................................................................................3 SERVICE NOTES.
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 2pcs PCBA in this monitor, one is power& inverter&Audio board which is a single layer board, one is keypad which is OSD control.The system function block diagram as below This PWA is included switching power supplier, inverter for CCFL and interface board.(fig.
Service Manual Electronic Circuit Theory 2.1 Inverter PWM circuit 2.1.1) Inverter Control circuit :( fig.2) Fig.2 DC_5V through R1 and C1 will provide power for U1 on the pin2 (VDDA). EN-ON/OFF voltage signal coming from scalar which is on IF BD will enable U1 to work. This applies a level greater than approximately 2V to pin8 (ENA) enables the IC, A voltage less than 1V will disable the IC. R3 is used to limit current.C3 and C40 is used to dump noise.
Service Manual 2.1.2) Output Circuit and Protection Circuit :( fig.3) fig.3 The transformer (T1/T2) secondary winding leakage inductance and output capacitance (C31/C32) forms a lower pass filter, which converts the square-wave driving signal into a sinusoidal output voltage signal for CCFL. The over-voltage protection feature is implemented by using an external capacitor divider (C31/C32, C33/C34) or resistor divider (R20/R21, R22/R24) to sense the output voltage.
Service Manual 2.2 Power PWM circuit 2.2.1) Block diagram :( fig.4) EMI Filter Rectifier and filter PWM controller Isolation power transformer Rectifier and filter Switching element Inverter circuit Rectifier and filter LDO regulator Feedback Isolation Fig.4 2.2.2) AC Input and EMI Filter :( fig.5) fig.5 CN850 is a connector for connecting AC Power. F850 is a fuse to protect all the circuit AC. Input voltage is from 90V to 264V.
Service Manual 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. R852 is a fuse resistor to protect the following circuit when inrush current is too large. U850 is a highly integrated PWM controller. Typical start-up current for U830 is only 8uA; R838, R839 and R840 are serial circuit to limit current flow.
Service Manual fig.7 D854 is used to rectify the inducted current. R860 and C861 are used to store energy when current is reversed. The parts including C862, C865, C864 and L853 are used to smooth the current waves that are from D854, and then 16V voltage is supplied. D856 is used to rectify the inducted current. R869 and C876 are used to store energy when current is reversed.
Service Manual ZD109 is ESD protector. - U102 +3.3V is supplied by PC via CN101#9 with D104 and ZD101 for ESD protection, or supplied by Monitor self via D104. - U102 is an EEPROM IC which is memory and EDID data saved in it. 2.3.
Service Manual - +1.8V is generated from Regulator U108 which is supplied byU103-3.3V through C143 filtering.The1.8V via FB105 supplies to U104. 3. FACTORY PRESET TIMING TABLE Standard VESA IBM DOS Resolution 640 x 480 640 x 480 800 x 600 800 x 600 1024 x 768 1024 x 768 1152x864 1280x1024 1280x1024 1440x900 720 x 400 Horizontal Frequency (KHz) 31.469 37.500 37.879 46.875 48.363 60.023 67.500 48.483 60.087 55.935 31.469 Vertical Frequency (Hz) 59.940 75.000 60.317 75.000 60.004 75.029 75.000 60.042 75.
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 T1 (ms) T2 (ms) T3 (ms) 0.3~10 0.0~50 >500 SPEC (Samsung) SPEC (LPL) 0.5~10 0.01~50 >500 T4 (ms) >200 T5 (ms) 0.0~50 T6 (ms) NA T7(ms) >1000 >200 0.01~50 NA >1000 5.
Service Manual 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 NC NC 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 o
Service Manual 8. Key Parts Pin Assignments 8.
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Service Manual 8.2 U105 (Serial Flash) Pin Symbol I/O 1 CE# I 2 SO I/O 3 WP# 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 U830 (SG5841, PWM Power Controller) Pin Symbol I/O Description 1 GND Ground 2 FB I Feedback, the FB pin provides the information of the regulation. The PWM duty cycle is controlled by FB 3 VIN I Start-up current input 4 RI I Reference setting, typical voltage 1.3V 5 RT N.C.(not connected) 6 SENSE I Current sense for over current protection 7 VDD I Power supply 8 GATE O PWM output 8.
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Service Manual Chapter 5- TEST AND ADJUSTMENT 1. Function key Definitions POWER Every bottom function defining Power Switch with power LED indicator Panel Controls Factory Modes Keys Function Power: On/Off, includes power indicator and Power ICON white- Active On Amber- DPMS 1. Menu: When OSD isn’t shown on screen, press [MENU] to enter OSD interface ,When OSD displays, press [MENU] to exit OSD 2.
Service Manual ● AUTO ADJUST Execute the AUTO ADJUST function ● Select Input Select the input source OSD Control OSD Control First Brightness Second Brightness Contrast Third Default 75 75 Auto Adjust Input Source Auto Select VGA DVI-D Input Color Format Mode Selection Color Settings Present Modes Display Settings RGB YPbPr Graphics Video Standard Multimedia Game Warm Cool Custom(R,G,B) Reset Color Settings Horizontal Position Vertical Position Sharpness Pixel Clock Phase 50 50 50 50 Reset
Service Manual 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. 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.
Service Manual 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. Edid 8.4.rar Edid.rar ISP User's Guide_20070312.rar ISP_Tool V4.100.rar After repair, to ensure the quality you should do the following test and adjustment.
Service Manual Item Test OSD function Content 1.Signal is set as 1440×900@60Hz under General-1 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 1440×900@60Hz 2. Set to 32gray scale pattern 3. Set contrast to the maximum. At most 6 bars cannot be distinguished. Color 1. Do “Auto color Balance” at 1440×900@60Hz, Temperature 32gray scale pattern 2.
Service Manual Chapter 6- TROUBLE SHOOTING Common Acknowledge z z z z z z z z z 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 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 CN101 #13& #14 separately when select VGA mode by OSD? NO Insert VGA Cable correctly YES Do the Hsync. & Vsync. Signals exist in R115 & R116? NO Check R115 & R116 YES Do the Hsync. & Vsync.
Service Manual Power (include IF +5Vand +3.3V) supply normal, key function OK,but backlight can’t be turned on Backlight cannot be turned on,is the on-off control signal come from IF ok? NO Is the CN853 inserted CN103 OK? Yes Yes Yes Is the on-off control signal #20 of U104 high-low convertible when DC on/off NO Is the voltage 16V at T1 PIN4? NO Check T850, D854 Yes Is the frequency 14.
Service Manual 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 IS the display is white and cannot display OSD when press key? YES Check DC 5.
Service Manual At 32-gray scale pattern, color lost in some scale Color lost in some scale at 32-gray scale pattern Re-insert the FFC Cable OK, END NO Change FFC Cable NO Change U104 34 OK, END
Service Manual Chapter 7- RECOMMENDED PART LIST Itm Category Component Location Type Supplier Component number Suppiler PN 1 Function Power IC U830 SG 412000582020R SG5841JSZ 2 Function Inverter IC U1 O2 412000531630R OZ9937GN Safety Inverter Transformer Safety Power Transformer 3 4 5 6 7 8 9 10 Safety Aluminium. Electrolytic CAP.
Service Manual ATTACHMENT 1- Bill of Material 1. Interface board BOM 20080122 ITEM P/N Revision Description 791431300800R 10 Supplier Usage Location PCBA,I/F BOARD,W/O SPK LE19D5-812 ROHS 629030015700R PROGRAM,W/O SPK LE19D5-812 ROHS 1 PCBA,I/F BOARD,W/O SPK,MI LE19D5-812 ROH PCBA,I/F BOARD,W/O SPK,SMT LE19D5-812 RO 20 791431320800R 30 791431340800R 40 641120000010R 11 HDCP 50 511130001200R A SOLDER BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0 RECEIVE DEVICE KEY 1 1 DCP LLC, TOMAS, 1 2.
Service Manual R113,R115,R116,R143, R155,R156,R167,R168 ,R175, R111,R119,R120,R123, R128,R129,R136,R151, R152,R157,R158,R160, R161,R164,R172,R174, R178,R179,R181,R182, R183,R184, 150 414916010250R A RES SMD (0603) 1KΩ J,RT RoHS REV:A TA-I,WALSIN,YAGEO, 10 160 414916010350R A RES SMD (0603) 10KΩ J,RT RoHS TA-I,WALSIN,YAGEO, 22 170 414918010450R A RES SMD (0402)100KΩ J,RT,RoHS TA-I,WALSIN,YAGEO, 1 R147, 180 414916027350R A RES SMD (0603) 27KΩ J,RT RoHS TA-I,WALSIN,YAGEO, 1 R150, 200
Service Manual 380 411130962950R A ZENER 6.2V SOD-123(PANJIT)RoH 390 412000330020R A 390 412000330130R 390 MMSZ5234B PANJIT, 0 IC LD1117AL-1.8V-A SOT223(UTC) RoHS UTC, 1 A IC AP1117E18LA 1.8V (ANACHIP) SOT223-3L ANACHIP, 0 412000330830R A IC AS1117L-1.8/TR-LF,SOT223(A1 SEMI)RoHS A1SEMI, 0 390 412000330550R A IC AME1117ECGTZ 1.
Service Manual RES WW NKNP 2W 0.2Ω J,VF7.5 MINI ROHS FUTABA,QUEENMAO,TZAI YUAN, 1 R859, 210 415502208521R 220 415350100550R A RES MOF 2W 10Ω J,MINI,HK15, RoHS FUTABA,QUEENMAO,TZAI YUAN, 2 R860,R869, 230 432009401000R A NTC 8Ω 5A +-20% 15ψ P=7.5mm,RoHS THINKING, 1 RT850, 2 T1,T2, 240 426000090600R A XFMR SW,DIP EEL19 SPW-060,RoHS DARFON,FOXCONN, FRONTIER,LISHIN, 250 426000090810R A XFMR SW DIP FOXCONN,FRONTIER, LISHIN, 1 T850, 260 430637020030R A WFR. 2P P=3.
Service Manual DARFON,TDK,WALSIN, YAGEO, DARFON,TDK,WALSIN,YAGEO DARFON,TDK,WALSIN,YAGEO 10 419311020060R A C SMD(0603) X7R 1000PF/50V K RoHS 20 30 419301010560R 419311030070R A A C SMD(0603) NPO 100PF/50V J RoHS C SMD(0805) X7R 0.01uF/50V K RoHS 50 419311040070R A C SMD(0805) X7R 0.1uF/50V K RoHS REV:A DARFON,MURATA, TDK,WALSIN,YAGEO, 2 C2,C3, 1 2 C837, C839,C867, 4 C872 , C7, C23,C24, 60 419314733060R A C SMD(0603) X7R 0.
Service Manual 500 500 500 510 530 540 ITEM 511110001104R 511110001100R 511110000700R 419314720070R 414908047050R 414904330110R A A A A A SEAL-GLUE,3611,(EURO) SEAL-GLUE,NE8800K,(FUJI) HERAEUS SMT-ADHESIVE,PD955PY(TAMURA) C SMD(0805) X7R 4700PF/50V K ROHS RES SMD (0805) 47Ω J,RT RoHS RES SMD (1206) 3.3KΩ F,RT ROHS EURO, FUJI, D-TEK,TAMURA, DARFON,TDK,WALSIN,YAGEO, TA-I,WALSIN,YAGEO, TA-I,WALSIN,YAGEO, P/N Revision Description 791431410800R PCBA,PWR&INV./B,AI,LE19D5-812 ROHS 791431450800R PCBA,PWR&INV.
Service Manual ITEM P/N Revision Description 791431460800R PCBA,PWR&INV./B,AI/R,LE19D5-812 ROHS Supplier Usage Location LELON,SAMXON, SU'SCON,TEAPO, 1 C857 , CAP HG 10uF 50V M,105℃ VT,5x11,RoHS CAP CD X7R 1000pF/1KV K,VT 2X7R102K102K5 CAP CD Y5P 0.
Service Manual 30 411070133500R 411070141500R LED SMD LTW-C195UCKS-5A(liteon) Rohs LITEON, 1 LED SMD Rohs Kingbright 0 W/Y KPTB-1612FX385-SZ(Kingbright) 40 491391500100R PCB,keypad (power key +LED)BOARD,LE19D5 EXPRESS,TIP TOP, 1 60 411101756950R A ZENER 5.6V MMPZ5232BPT SOD323(Chenmko)Ro CHENMKO, 1 60 411100956952R A ZENER 5.6V BZT52-C5V6S PANJIT, 0 SOD323(PANJIT)Ro LED01, ZD01 5.
Service Manual 20080703 ITEM P/N 713000095900R Description Supplier Usage Un ASSY PACK,20STD,LE19D5 Revision A 10 506432003500R SLIP SHEET,L1320xW1062xH100mm, LE19D5 0 PC A 20 506037009100R CARDBOARD,COVER,L1320xW1062xH100xT3mm,LE 佳藝,美盈森, SUNSTREAM, 0 PC A 30 506039008800R CORNER PAPER 1060x50x50xT3mm LE1963 佳藝, 0 PC A 40 506431000300R FILM,PE 500mmx900M ROHS 三輝,柏興, 0 ROL A 50 506120400100R BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS SISUN, 0 PC A 60 506380002612R TAPE,WRAP
Service Manual 70 506380002612R TAPE,WRAPPING TYPE,50Mx82mm 佳普森, 0 ROL A Description Supplier Usage Un 1 PC A 1 PC 1 PC A 1 PC Usage Un 20080626 ITEM 10 20 30 40 P/N 714030016310R ASSY,FRONT BEZEL(For CMO panel)L,LE19D5 501010216310R FRONT BEZEL(For CMO panel)L,LE19D5 A 3C0702200-000-GX2 LOGO PLATE,DELL,LE19D5 501030209810R Revision POWER BUTTON(For CMO panel),LE19D5 3B3519E00-000-GX2 BEZEL RIGHT PROTECTIVE FILM 20080703 ITEM P/N Description Supplier Revision 714050014900R
Service Manual 1.
Service Manual +5V VCC3.3 R141 10K C170 Q103 3 AP2305GN 0 1000p/50V R142 1000p/50VC171 0/NC 2 Q106 PMBT3904 Q102 PMBT3904 R147 100K 1 R151 10K +5V Size A 3 3 VOUT VOUT 2 2 U103 AP1084K33LA VIN VIN U108 LD1117AL-1.8V Friday , July 11, 2008 Document Number 100u/16V CN103 8 7 6 5 4 3 2 1 8P 2.0mm VCC3.3 VLCD C136 VLCD Backlight_on/of f 4 + 0.1/16V 0.1/16V C168 Title C143 0.1/16V Date: + + VCC3.3 VCC1.8 2 S1909W x Sheet DCINPUT VCC3.3 4 2,4 3 VCC1.
Service Manual 2 HPD_CTRL +5V 2 2 DDCA_SDA DDCA_SCL 2 2 2 2 2 2 2 2 2 R+ RG+ GB+ BCLK+ CLKDDCD_SDA DDCD_SCL RIN GNDR GIN GNDG SOG BIN GNDB HSY NC VSY NC R154 2 2 2 2 2 2 2 2 2 2 VDVI VDVI VMPLL VPLL AVDD VDDP VDDC TSUM56BWHK-LF-2 RIN0P RIN0N GIN0P GIN0N SOGIN0 BIN0P BIN0N HSYNC0 VSYNC0 DDCA_SDA/RS232_TX DDCA_SCL/RS232_RX R+ RG+ GB+ BCK+ CKDDCD_SDA DDCD_SCL REXT REFP REFM VCTRL LVA3P LVA3M LVACKP LVACKM LVA2P LVA2M LVA1P LVA1M LVA0P LVA0M LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LV
Service Manual 2. Power board schematic 2.0 Power AC to DC 1.0 Contents SCHEMATIC 3 2 1 SHEET SEC/CMO PANEL 3.0 Inverter DC to AC Reversion of History Dell S1909WXf Power/Inverter Schematic Diagram REV1 Open the components in audio circuit REV2 REVA for MP Document Number Wednesday , July 09, 2008 Sheet 1.
Service Manual 0.1uF X2 R851 C853 R850 470K 1/4W 2 3 RT850 8R5A 470K 1/4W J859 bead/Jump L851 CHK-090 C852 0.47uF X2 VZ850 TVS/Open C851 332 Y1 3 HF-301PCB 7MM J860 bead/Jump 4 - 3 C837 5 2 Vin R838 499K R839 499K R840 499K D850 BL4-06 + 1 R852 0.2R 1W Fuse C854 100uF/450V R855 L831 0R MM4148 or OPEN D831 R837 15R 1% 10R 1/4W C857 10uF/50V Signal_GND C839 0.01uF/50V X7R 4 6 Signal_GND C836 2.2nF/50V X7R Signal_GND 26.
Service Manual +16V 3 Brightness C40 100nF/50V C41 100pF/50V R2 10K C2 +5V 1nF/50V X7R C10 R1 10R C1 2.2uF/10V R7 1M R9 30K R27 open 1 2 3 4 5 6 7 8 RLS4148 D1 RLS4148 D2 RLS4148 D3 VDDA DRV1 CT TIMER GNDA DRV2 VSEN OVPT LCT SSTCMP DIM OZ 9937 ENA RT RSTR PID ISEN U1 C13 100nF/25V X7R RLS4148 D4 C3 1nF/50V X7R ISEN1 ISEN2 ISEN3 R13 1M 16 15 14 13 12 11 10 9 R28 10R R11 1M R29 10R 10nF/25V X7R C14 R8 C7 C8 200K 0.1uF/16V 47nF/16V C4 2.2uF/10V C5 0.
Service Manual Attachment 3- PCB Layout power/inverter bd: Power/inverter bd: Top Layer 52
Service Manual Bottom Layer 53
Service Manual I/F board: Top Layer 54
Service Manual Bottom Layer 55
Service Manual Keypad: Top Layer Power key: Top Layer Bottom Layer 56
