Service Manual Service Manual LCD Monitor S1909WNf -0-
1 Service Manual Versions and Revision No. Version Release Date Revision 1 1.0 2008/08/22 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 board which is a single layer board, one is interface board .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) +12V +5V C23 2.2uF/16V 3.3V Lightest 0V of lightest R3 10K C9 DIM 470uF/25V 3 2 4 R4 113K Q1 GNDA VDDA DRV2 DRV1 6 G2 6 7 5 D2 C27 1nF/50V AP9971GD S2 7 Q4 5 INL836 33nF/50V RK7002 2 1 DIM 1nF/50V 4 3 C6 RT 8 3 Q2 RK7002 C8 ISEN D2 8 3 2 SST_CMP D1 U1 1 D1 1 47K 1 1500pF/50V X7R 2 open R22 C22 1500pF/50V X7R ZD7 C25 open R5 10K 33R 0.
Service Manual drive Q4, this push and pull the energy in the transformer. The voltage signal on negative pole of ZD4 sensed through R35 comes to Pin4 of U1, ISEN (Lamp Current Detection & Control). The CCFL current is detected through R14and reaches a regulated value. The CCFL current detected at resistor R14 is converted to a voltage level and input to the ISEN pin.C12 is used to dump noise. Once the CCFL are ignited and current is sensed through resistor R14 .
Service Manual 2.2 Power PWM circuit 2.2.1) Block diagram :( fig.4) Fig.4 2.2.2) AC Input and EMI Filter :( fig.5) L850 4 1 3 2 CHK-007 R851 499K R852 R850 499K 499K RT850 5R4A C852 0.47uF X2 C850 C851 222 Y 2 222 Y 2 F850 3.15A 250V 1 3 2 CN850 HF-301PCB 7MM 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. R850 ,R851 and R852 are joined between two inputting main circuit to prevent man from shock.
Service Manual 4 D850 BL4-06 R839 + 1 - 0.2R/1W FUSE C854 68uF/450V R841 27K 2 C875 472P R842 R856 10R 7 VCC NC 8 D851 FR10-10 SF10-04 10uF/50V Signal_GNDR844 5 D841 4 9 8 47R NC/1N4148 RT 3 4 D852 C855 0.01uF/50V X7R 5 11 10 27K C849 U850 LD7552B 2 R855 499K OUT NC/P6KE170A 27K R843 VCC D853 R854 499K 3 12 R853 499K Signal_GND T850 SPW-119 1 R848 100K 1% 7 C860 AP2762 2 C872 NC/100P/1KV Y 5P 332 Y 1 3 C846 6 Q850 1 3 2.2.
Service Manual C862 1000pF/1KV X7R R862 10R 2W D854 SR520 D855 SR520 C873 1000pF/1KV X7R D856 D857 L855 NC/CHK-XXX +12V C863 470uF/25V C864 470uF/25V R887 20K R873 10R 2W NC/SB5150 L854 CHK-XXX F851 SB5150 +5V 5A/125V C858 470uF/25V C856 C857 470uF/25V C876 470uF/25V 0.1uF/50V +5V R857 270R R871 R872 270K 3.6K ON/OFF DIM 1 2 3 4 5 6 7 8 CN853 +5V +5V GND GND ENA DIM Audio_detect Audio_on/of f SIP-8P R858 NC/5K1 R860 I851 TL431 5K1 C871 0.
Service Manual - U103 +3.3V is supplied by PC via CN102#9 with D106 and ZD102 for ESD protection, or supplied by Monitor self via D106. - U103 is an EEPROM IC which is memory and EDID data saved in it. 2.3.
Service Manual 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 1366x768 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 47.712 Vertical Frequency (Hz) 59.940 75.000 60.317 75.000 60.004 75.029 75.000 60.042 75.034 59.887 59.790 4.
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) 0.5~10 0.0~50 >200 0.5~10 0.01~50 >500 SPEC (AUO) SPEC (LPL) T4 (ms) >200 >200 T5 (ms) 0.5~50 0.01~50 T6 (ms) NA NA T7(ms) >1000 >1000 5.
Service Manual 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 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 eve
Service Manual 8. Key Parts Pin Assignments 8.
Service Manual 16
Service Manual 17
Service Manual 8.2 U108 (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 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 7 HOLD 8 VDD I/O P rising edge of the clock input, while output data is shifted out on the Falling edge of the clock input. To temporarily stop serial communication with SPI flash memory without resetting the device. To provide power supply. 8.
NO. 20 Designation 509146306202R 2 2 2 509016306200R 509446309100R Screw,I,Cross,M3*6,Zn-Cc 3 502040400600R Screw,P,Cross,M4*10,Black-NL 1 1 505040208510R 505040208511R 506380001730R MYLAR FOR AUO PANEL,LE1979 MYLAR FOR CHASSIS,LE1979 TAPE,ACE,85*20mm,LE1913 1 Screw,B,CROSS,W/W-SPR,M3*9,Zn 714020017000R SHIELD EMI LP2207 509146610100R 3 4 509000001000R Bolt,#4-40*12.
Service Manual 2.
Service Manual 3.
Service Manual Chapter 5- TEST AND ADJUSTMENT 1. Function key Definitions POWER Every bottom function defining Power Switch with power LED indicator OSD 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 Hot Key Operation HOT KEY OPERATION FUNCTION FACTORY MODE DESCRIPTION MENU Plus ● ● Brightness& Contrast Minus ENTER POWER ON To show the Brightness& Contrast menu ● ● AUTO ADJUST Press [Ï]& [MENU] at the same time, and then press [POWER] for DC power on.
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 “Menu” button to call out Main Menu (Fig.9). Press “Plus Key”, select“Other Settings Menu”then pop submenu and choose Factory to 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.
Service Manual Dell panel P/N LCD supplier AUO LPL Panel Supplier P/N Dell P/N 18.5”W 18.5”W M185XW01 LM190WH1 T022G W368G Burn-in pattern Burn-in pattern will self-generate automatically without VGA cable plugged in when the monitor set at Burn-in on mode and burn-in pattern will not be stopped until plugging in the VGA cable. Exit Burn-in mode method as followe: plugging in the VGA cable, press “Menu” button to call out OSD Main Menu, Press “Plus Key”to enter Factory reset.
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 1366x768@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 1366x768@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 1366x768@60Hz, 32gray Temperature 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 U103 and U108 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 (U108) 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 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 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 12V at T1 PIN3/4? NO Check T850, D854,D855 Yes Is the frequency 14.
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 IS the display is white and cannot display OSD when press key? YES Check DC 5.
Service Manual 6.
Service Manual 412000330020R 1 UTC, 412000330830R IC LD1117AL-1.8V-A SOT223(UTC) RoHS IC AS1117L-1.8/TR-LF,SOT223(A1 SEMI)RoHS 412000330070R IC AZ1117H-1.
Service Manual 20 419351044010R A C SMD(0402) X5R 0.1uF/16V K,RoHS DARFON,TDK, WALSIN,YAGEO, 35 PC C106,C108,C110,C126,C128, C133,C134,C135,C136,C137, C138,C139,C140,C141,C143, C144,C145,C146,C147,C149, C153,C154,C155,C156,C159, C160,C161,C165,C167,C168, C169,C171,C111,C104,C172, 30 419311054070R A C SMD(0805) X7R 1uF/16V K RoHS REV:A DARFON,MURATA,TDK, WALSIN,YAGEO, 1 PC C164, 40 419314734010R A C SMD(0402) X7R 0.
Service Manual 9 PC R130,R133,R134,R146, R160,R191,R154,R155, R125, 4 PC R131,R132,R142,R143, 2 PC R135,R136, 1 PC R144, 1 PC R168, BCD, 1 PC U101, IC AS1117L-3.3TR-LF,SOT223(A1S EMI)RoHS A1SEMI, 0 PC A IC LD1117AL-3.3V-A SOT-223(UTC RoHS UTC, 0 PC 412000330020R A IC LD1117AL-1.8V-A SOT223(UTC) RoHS UTC, 1 PC 320 412000330830R A IC AS1117L-1.8/TR-LF,SOT223(A1 SEMI)RoHS A1SEMI, 0 PC 320 412000330070R A IC AZ1117H-1.
Service Manual 50 A 50 A 50 A 60 A 60 A 60 A 411131562950R 411121462950R 411130962950R 511130002200R 511130002201R 511130002202R FAITH, ZENER 6.2V BZT52C6V2-7-F SOD-123(DIODES) DIODES, ZENER 6.2V BZT52-C6V2 SOD-123(WILLAS)ROH WILLAS, ZENER 6.2V MMSZ5234B SOD-123(PANJIT)RoH PANJIT, SOLDER PASTE,Sn96.5-Ag3.0-Cu0.5 ROHS TOMAS, SOLDER PASTE,Sn96.5%Ag3.0%Cu0.5% TOMAS, SOLDER PASTE,Sn95.5%Ag3.9%Cu0.6% TAMURA, 1 PC 0 PC 0 PC 0.015 G 0G 0G ZD01, 3.
Service Manual 170 170 170 180 180 180 190 200 210 220 220 240 250 260 270 270 280 411090056020R 411090056450R 411030072520R 411090050090R 411090050020R 411090050450R 426000090540R 426000091190R 412140002380R 410500071290R 410500061271R 735110007030R 791821440A00R 511130001200R 511110000103R 511110000101R 511110000501R SCHTKYSR520F72-LF 200V/5A DO-201AD(FEC)R SCHTKYSR5200PT-LF 200V/5A DO-201AD(CHENM DIO SF50DG-E1 200V/5A DO-201AD(LITEON)RO SCHTKY SB5150F98 150V/5A DO-201AD (PANJI SCHTKY SR515F69-LF 150V/5
Service Manual 290 412000637630R IC INL836GN SOIC8(O2 MICRO) ROHS 300 511110001100R SEAL-GLUE,NE8800K,(FUJI) 300 511110000700R HERAEUS SMT-ADHESIVE,PD955PY(TAMURA) ### ITEM P/N 791821410A00R 10 791821450A00R 20 791821460A00R O2, FUJI, D-TEK,FUHONGSHIJI,TAMURA, Description PCBA,P/I BOARD,W/O SPK,AI,LE1979-A12,RoH PCBA,P/I BOARD,W/O SPK,AI/A,LE1979-A12,R PCBA,P/I BOARD,W/O SPK,AI/R,LE1979-A12,R Supplier Description PCBA,P/I BOARD,W/O SPK,AI/A,LE1979-A12,R DIO FR10-10-LF 1000V/1A AT(FRO NTIER)RoH DIO FR107
Service Manual Attachment 2- Schematic 1. Interface board schematic Note 1 RB101 R0603 RB102 R0603 RB103 R0603 75 1% 75 1% 75 1% R117 R118 R119 0 R114 75 1% C113 0.047u/16V 0 R115 75 1% C114 0.047u/16V 0 R116 75 1% C115 0.047u/16V C116 NC C117 NC R122 75 1% C119 0.047u/16V R123 75 1% C120 0.047u/16V R124 75 1% C121 0.047u/16V D105 BAV99 1 C123 C124 C125 NC NC NC RED- 5 GREEN- 5 BLUE- 5 VGA_DET 5 VGA5V D106 BAV70 C128 0.
Service Manual VDDP_33 AVDD_33 FB102 + C143 C144 C145 C146 C147 0.1/16V 0.1/16V 0.1/16V 0.1/16V 0.1/16V 9 10 12 13 15 16 18 19 5 6 4 RX2+ 4 RX24 RX1+ 4 RX14 Rx0+ 4 RX04 RXC+ 4 RXC4 DDC_SDA_DVI 4 DDC_SCL_DVI GND AVDD_33 R144 390 1% 7 31 VCC5V C148 1u/16V R177 10K 2 Q107 PMBT3906 1 3 R189 10K GND R191 1K R192 10K VCC HOLD# WP# GND SO CS# SCK SI 2 SDO 1 SCZ 6 SCK 5 SDI X101 14.
Service Manual power board schematic 1.1 Contents SCHEMATIC 2 1 SHEET REV1 Reversion of History Dell S1909WNf Power/Inverter Schematic Diagram 1.2 Inverter board INL836 3 LPL/AUO PANEL 1.
Service Manual 4 3 4 - L850 CHK-007 1 2 R851 499K R850 499K RT850 5R4A C852 C851 0.47uF X2 C850 222 Y2 3 D850 BL4-06 + 1 C846 C854 68uF/450V Signal_GND R852 499K R853 27K R855 27K R854 R841 C875 472P R856 10R C855 Signal_GND C847 1nF/50V X7R 47R R840 Signal_GND NC/1N4148 R848 100K 1% D841 C849 OUT U850 LD7552B RT 6 Signal_GND CS 4 10uF/50V Signal_GNDR844 47R 499K R843 499K R842 27K 8 499K R839 0.2R/1W FUSE NC VCC 0.
Service Manual 3.3V Lightest +12V Brightness R3 10K 0V of lightest C5 1500pF/50V X7R Q2 C6 +5V C25 open 3 ZD7 open R4 113K 2 1 1 2 3 4 U1 SST_CMP C23 2.2uF/16V DIM ISEN VDDA RT GNDA DRV1 INL836 DRV2 8 7 6 5 C2 0.1/50V C9 470uF/25V C1 0.
Service Manual Attachment 3- PCB Layout power/inverter bd: power/inverter bd: Top Layer Bottom Layer 46
Service Manual I/F board: Top Layer 47
Service Manual Bottom Layer Power Keypad Top Layer 48
Service Manual Bottom Layer OSD Keypad 49
