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Dell 1909Wf Service Manual
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Dell 1909Wf Service Manual

Dell lcd monitor 1909wf sff aio service manual
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Service Manual

Service Manual
LCD Monitor 1909Wf
SFF AIO
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Summary of Contents for Dell 1909Wf

  • Page 1: Service Manual

    Service Manual Service Manual LCD Monitor 1909Wf SFF AIO - 0 -...
  • Page 2 All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to a electronic or machine readable form without prior written permission of Foxconn Tech. Corp. Ltd. Dell 1909Wf SFF AIO Service Manual...

  • Page 3: Table Of Contents

    Service Manual Table of Contents CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ......................SAFETY PRECAUTIONS ............................PRODUCT SAFETY NOTICE ..........................SERVICE NOTES ................................ CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED .................... CHAPTER 3- CIRCUIT THEORY ............................................................LOCK IAGRAM ..........................LECTRONIC IRCUIT HEORY FACTORY PRESET TIMING TABLE .........................

  • Page 4: Chapter 1- Precautions & Safety Notices

    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.

  • Page 5: Chapter 2- Service Tools & Equipment Required

    Service Manual Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED 1. SIGNAL GENERATOR 2. MULTIMETER 3. SCREW DRIVER 4. OSCILLOSCOPE 5. Soldering IRON 6. SOLDER (Lead free, RoHS compliance) 7. Color Analyzer 8. Fox_VISP_Programmer 9. Fox_VEDID_Programmer...

  • Page 6: Chapter 3- Circuit Theory

    Service Manual Chapter 3- CIRCUIT THEORY Block Diagram There are 4pcs 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 stretch board located on the right side back cover.
  • Page 7 Service Manual Panel Interface Brightness Control ON/OFF Control Panel on/off USB Vcc protection AP1117E33A LM1117M-3.3 24C16 AP1117E33 LM1117M-3.3 AP1117E18 LM1117M-1.8 1.8V USB2.0 USB-Detect Scalar compatible XTAL 4port Hub 14.318M Hz Data TSUM5PEHJ-LF-2 Audio on/off Flash SMSC2514 Audio-det XTAL 24.M Hz 24C02 24C02 2port USB...

  • Page 8: Electronic Circuit Theory

    Service Manual Electronic Circuit Theory 2.1 Inverter PWM circuit 2.1.1)Inverter Control circuit:(fig.2) Fig 2 DC_5V through R3 will provide power for U1 on the pin6. ON/OFF voltage signal coming from IF BD will enable Q1 to work.C4 is used to dump noise, C5 is used to soft start, and then the voltage on pin 1 will enable U1.
  • Page 9 Service Manual 2.1.2)Output Circuit and Protection Circuit:(fig.3) Fig.3 The transformer (T1) secondary winding leakage inductance and output capacitance(C19) forms a lower pass filter,which converts the square-wave driving signal into a sinusoidal output voltage signal for CCFL. The voltage signal on negative pole of ZD1 sensed through R14 comes to Pin8 of U1-ISEN (Lamp Current Detection &...
  • Page 10 Service Manual voltage at pin 1 controls the drive duty cycle of the power MOSFETs to regulate the CCFL current. Q4 and Q5 are used for open-CN1 lamp protection . if a CCFL is removed, fails or damaged during normal operation, CCFL current is no longer sensed and the voltage on ISEN pin drops.
  • Page 11 Service Manual 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. L850 is used to filter low frequency noise.
  • Page 12 Service Manual When U850 begins to operate Pin8 of U850 will output square wave to drive Q850, then the main current flow get to GND bypassing through T850, Q850. Because of the change of current flow, wires in the other side of T850 will induct current.
  • Page 13 Service Manual Fig.7 D854 is used to rectify the inducted current. R862 and C861 are used to store energy when current is reversed. The parts including C862, C865 and L853 are used to smooth the current waves that are from D854, then 16V voltage is supplied. The components ZD880,R886,R887,R888,Q851 are used as a constant voltage regulator.
  • Page 14 Service Manual Fig.8 12V audio power is come from DC+12.5V,U880 is a 2A output low dropout voltage regulator used to buck convent 12.5V to 12V. 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 (TSUM5PEHJ-LF) analog input PIN #28,#25,#23, and then TSUM5PEHJ-LF deals with signal internally.
  • Page 15 Service Manual ZD203 Zener for ESD protection, via R210, goes into EDID EEPROM IC U201 #5. - CN201#15 is defined as cable detect pin, the detect pin can create a pull-low signal send to U105#49pin via R216 to identity cable connection, if plug out the DVI cable the U105#49pin will receive a high signal and system enter self test mode when exit factory mode（the device must set at DVI input mode ）.

  • Page 16: Factory Preset Timing Table

    Service Manual and through C101 filtering, C102 and C105 is 3.3V which supplies toU102、 U106、U103、U201、U105、U108output filtering. - +1.8V is generated from Regulator U102 which is supplied byU101-3.3V through C106 filtering.TheU102 output1.8V via FB105 send to U105. 3. FACTORY PRESET TIMING TABLE Standard Resolution Horizontal...

  • Page 17: D-Sub Connector Pin Assignment

    Service Manual Power supply for panel+5V V Signals Valid data (Digital RGB, HS, VS, DE, CLOCK) Power supply for backlight T1(ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms) T6 (ms) T7(ms) SPEC(Samsun 0.3~10 0.0~50 >500 >100 0.0~50 >1000 5. D-SUB Connector Pin Assignment Symbol Symbol Symbol...
  • Page 18 Service Manual Panel_Vcc Panel power supply (typ. 5.0V) Panel_Vcc Panel power supply (typ. 5.0V) GND_LVDS LVDS Ground RXE3+ LVDS signal of even channel 3(-) RXE3- LVDS signal of even channel 3(+) RXEC+ LVDS signal of even channel clock (+) RXEC- LVDS signal of even channel clock (-) RXE2+ LVDS signal of even channel 2(+)

  • Page 19: Key Parts Pin Assignments

    Service Manual 8. Key Parts Pin Assignments 8.1 U105(TSUM5PEHJ-LF)
  • Page 20 Service Manual...
  • Page 21 Service Manual...
  • Page 22 Service Manual 8.2 U108 (Serial Flash) Symbol 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.
  • Page 23 Service Manual To transfer commands, addresses, or data serially into the device input are latched on the rising edge of the serial clock. To provide the timing of serial interface. Commands, addresses, or input data are latched on the rising edge of the clock input, while output data is shifted out on the Falling edge of the clock input.
  • Page 24 Service Manual 8.3 U850 (LD7575, Power Controller) Symbol Description This pin is to program the switching frequency Voltage feedback pin,By connecting a COMP photo-coupler to close the control loop and achieve the regulation Current sence pin PWM output ,Gate drive output to drive the external MOSFET Power supply Unconnected pin...

  • Page 25: Chapter 4- Disassembly & Assembly

    Service Manual Chapter 4- Disassembly & Assembly 1. Exploded Diagram...
  • Page 26 Service Manual 2. 1909W SFF AIO Disassembly Block LP 1948 DIS AS S EMBLY BLO C K cha s s is *1 button powe r ke y*1 C HAS S IS AS S Y *1 slide *1 P O W E R , LE N S *1 spring *2 Myla r cha s s is*1 front be ze l *1...
  • Page 27 Service Manual 3. 1909W SFF AIO Assembly Block LP1948 ASSEMBLY BLOCK chassis *1 button power key*1 CHASSIS ASSY *1 slide *1 P O W E R , LE N S *1 spring *2 Mylar chassis*1 front bezel *1 fix-plate1 *1 (P,cross,T.T-3*4,Zn)*1 I/F board *1 FFC-CABLE*1...

  • Page 28: Chapter 5- Test And Adjustment

    Service Manual Chapter 5- TEST AND ADJUSTMENT Function key Definitions DOWN ENTER MENU POWER Control buttons on the front bezel KEY FUNCTION CONTROL KEY KEYS FUNCTION A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface [MENU] B.

  • Page 29: Osd Control

    Service Manual 4. OSD Control First Second Third Default VGA Input DVI Input Yes(DCR Brightness off) Brightness Contrast Auto Adjust Auto Select Input Source DVI-D Input Color Format YPbPr Graphics Mode Selection Video Standard Multimedia Game Present Modes Warm Color Settings Cool Custom(R,G,B) Saturation...

  • Page 30: Factory Mode Introduction

    Service Manual portrait Audio Option Enable DDC/CI Disable Disable LCD Conditioning Enable Factory Reset In OSD dialog box, should show current input video signal (1 stands for Auto Detect, 2 stands for VGA input, 3 stands for DVI input), current model resolution @ Ver.
  • Page 31 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 U105. Dell panel P/N Panel Supplier P/N Dell P/N supplier...

  • Page 32: Burn-In Pattern

    Service Manual Burn-in pattern Burn-in pattern will self-generate automatically without VGA and DVI 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 /DVIcable. Exit Burn-in mode method as followe: plugging in the VGA/DVI cable, press “Menu”...

  • Page 33: After Repair , To Ensure The Quality You Should Do The Following Test And

    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.

  • Page 34: Auto Color

    Service Manual Item Content Equipment Test OSD 1.Signal is set as 1440×900@60Hz under General-1 Chroma 2. LCM button are from left to right, checking whether each function Signal Generator single function key and compound function key can be worked. Contrast Check 1.

  • Page 35: Chapter 6- Trouble Shooting

    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.
  • Page 36 Service Manual Power(include IF +5Vand +3.3V) supply normal but LED off and no display Is the key function OK? Press power key to DC on the monitor,if display ok the process is end,if no display see the no backlight process Is the frequency 14.318MHz at #128 of Change crystal X101 IF Board U105?
  • Page 37 Service Manual Power (include IF +5Vand +3.3V) supply normal but LED Amber Is Power LED Amber? Do the Hsync. & Vsync. Signals exist Insert VGA Cable correctly in CN102 #13& #14 separately when select VGA mode by OSD? Do the Hsync. & Vsync. Signals exist Check R135 &...

  • Page 38: B Acklight Can

    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 Is the CN851 on-off control signal come from IF ok? inserted CN101 OK? Is the on-off control signal #109 of U105 high-low convertible when DC on/off Change U105 Is the...

  • Page 39: No Picture

    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 Is the panel enable signal at 73# of IS the display is white and cannot Check DC 5.0V on U105,if no check display OSD when press key?

  • Page 40: At 32-Gray Scale Pattern, Color Lost In Some Scale

    Re-insert the FFC Cable Change FFC Cable Check crystal circuit, if the wave of 14.318MHz signal is normal change U105 else change X101 Chapter 7- RECOMMENDED PART LIST 1909Wf SFF AIO Critical Parts List Component Component Itm Category Type Location Supplier...

  • Page 41: Attachment 1- Bill Of Material

    Service Manual 412000480280R M24C02-WMN6TP IC M24C02-WMN6TP SO8 2K (ST) ATMEL 412000435481R AT24C02BN-SH-T 2K IC AT24C02BN-SH-T 2K SOIC8(ATMEL)RoHS ATMEL 412000224482R AT24C16BN-SH-T IC AT24C16BN-SH-T 16K(ATMEL) SOIC 8 ROHS Performance EEPROM U106 412000224280R M24C16-WMN6TP IC M24C16-WMN6TP SO8 16K (ST) ROHS EEPRO CATALYST 412000481990R CAT24C16WI-TE13 IC CAT24C16WI-TE13 SOIC-8(CATALYST)RoHS 412000372020R LD1117AL-3.3V-A IC LD1117AL-3.3V-A SOT-223(UTC RoHS...
  • Page 42 Service Manual 791861400800R PCBA,P/I BOARD W/O SPK,LP1931-812,ROHS PCBA,P/I BOARD W/O SPK,SMT LP1931-812 10 791861440800R PCBA,P/I BOARD W/O 20 791861420800R SPK,MI,LP1931-812,ROH 30 735110007700R ASSY,H/S,Q850,LP1927,ROHS 40 735110008800R ASSY,H/S,U880,LP1931-812,ROHS 50 735110008810R ASSY,H/S,SRF10-10CT-LF,LP1931 ROHS ##### ITEM P/N Description Supplier Usage Un Location 735110007700R ASSY,H/S,Q850,LP1927,ROHS XSTR AP2761I-A N-CH TO-220CFM 10 410500059290R APEC,...
  • Page 43 Service Manual 40 418103058920R CAP CD SL 3pF 3KV D,S7.5,RoHS JNC, 50 418115051520R CAP CD NPO 15pF 3KV J,S7.5 RoHS SUCCESS(SEC), PC C19, 50 418115058520R CAP CD SL 15pF 3KV J,S7.5,RoHS JNC,TDK, CAP MEY 2200pF 250V M Y2 Y5V P=7.5mm 60 416202223610R JNC,POE,SUCCESS(SEC),TDK, PC C850,C851,...
  • Page 44 Service Manual CON,POWER JACK R/A 1P,JPD1030- 240 442299001100R DLK,FOXCONN,S.C.,ZJGHJ, PC CN880, H224-4F,R 250 432009401000R NTC 8Ω 5A +-20% 15ψ P=7.5mm,RoHS THINKING, PC RT850, CAPXON,SAMXON, 260 420422210220R CAP SD 220uF/25V M 105℃ S,8x12,RoHS PC C886, SU'SCON,TEAPO, 270 415350100550R RES MOF 2W 10Ω J,MINI,HK15, RoHS QUEENMAO,TZAI YUAN, PC R862,R880, 280 425000011110R COIL CHK T9*5*3-C A05 64uH CHK-111...
  • Page 45 Service Manual XSTR 2N7002K ESD N-C SOT-23, 280 410500050120R VISHAY, (VISHAY)RoH 280 410500050091R XSTR 2N7002K ESD N-C SOT-23, (PEC)RoH PANJIT, XSTR PMBT3904 NPN 200MA,40V 290 410500045210R PHILIPS, PC Q2, SOT23(PHILIP XSTR MMBT3904 NPN 200mA 40V 290 410500045241R FAIRCHILD, SOT23(FAIRCH XSTR MMBT3904LT1G NPN 200MA 40V 290 410500045140R ON SEMI, SOT23(ON...
  • Page 46 Service Manual LLAS)RoHS ZENER 22V GDZ22A-LF DO-34(FRON 50 411130622011R FRONTIER, TIER)RoHS 60 430613050100R FUSE SLOW PICO II 5A/125V U/C,AT,ROHS LITTELFUSE, PC F851, 60 430613050101R FUSE SLOW 5A/125V U/C,AT,ROHS WALTER, 80 491661400100H PCB,P/I ,1/OSP /CEM1/16,LP1931-812 HSIANGKUO,TATCHUN, J2,J5,J7,J8,J11, 90 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 7.5MM HOTRON,YUANYE, J13,J14,J15, 90 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 7.5MM...
  • Page 47 Service Manual 30 791861320800R PCBA,I/F BOARD W/O SPK,MI LP1931-812,ROH 1 PC 40 511130001200R SOLDER BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0 TOMAS, 3.8 G 50 641120000010R HDCP RECEIVE DEVICE KEY DCP LLC, 1 SET LABEL,BARCODE,BLANK,33x7mm, ROHS,FOR 60 506140005700R HENGMINGDA,JIAYINMEI,KAIDA, 1 PC ITEM P/N Description Supplier usg Un Locatio 791861320800R PCBA,I/F BOARD W/O SPK,MI LP1931-812,ROH 10 430631100060R WFR 10P 2.0MM 90°...
  • Page 48 Service Manual 70 419302200510R C SMD(0402) NPO 22PF/50V J,RoHS DARFON,MURATA,TDK,WALSIN,YAGEO, 4 PC C157,C D102,D D202,D 80 411020026210R DIO BAV99 350mW 70V SOT-23(PHI RoHS PHILIPS, 13 PC D206,D D210, 80 411020026090R DIO BAV99 350mW 75V SOT-23(PEC RoHS PANJIT, 0 PC 80 411020026020R DIO BAV99-LF 350mW 70V SOT-23 (FEC)RoHS FRONTIER, 0 PC 90 411020047210R DIO BAV70 85V SOT23 (PHILIPS) RoHS PHILIPS,...
  • Page 49 Service Manual R157,R R131,R 250 414918010150R RES SMD (0402) 100Ω J,RT,RoHS TA-I,UNIOHM,WALSIN,YAGEO, 6 PC R209,R 260 414918022250R RES SMD (0402) 2.2KΩ J,RT,RoHS TA-I,UNIOHM,WALSIN,YAGEO, 2 PC R135,R 270 414918390010R RES SMD (0402) 390Ω F,RT,RoHS TA-I,UNIOHM,WALSIN,YAGEO, 1 PC R144, 280 414916033150R RES SMD (0603) 330Ω J,RT RoHS TA-I,UNIOHM,WALSIN,YAGEO, 2 PC R165,R R201,R...
  • Page 50 2 PC ℃,CF,5x11,RoHS,2. CON USB A,R/A,4 30 442849001060R TEKCON,FOXCONN, 2 PC POS,UB11123-4R1-4F,RoHS SOLDER 40 511130001200R TOMAS, 0.698 G BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0 60 491660300100H PCB,CNV-U,1/OSP /CEM1/12,LP1931 HF HSIANGKUO,TATCHUN, 1 PC 5.Assembly BOM 81924881D010R 1909Wf SFF AIO/R630J/LP1948-812/AMLCD/DA Lv Item RevLev Component no. Object description...
  • Page 51 80 A 506120300060R BAG, PLASTIC,L670*W440mm(PRINTED), LE22E 90 A 506120306600R BAG,EPE+HDPE,L900xW650mm,LP1945 2 100 A 506120306610R BAG,EPE+HDPE,L430xW230mm,LP1945 2 110 A 506020000800R CARTON,DELL(WWW),LP1948 2 120 A 506060015400R CUSHION TOP,LP1948 2 130 A 506060015401R CUSHION MIDDLE,LP1948 2 140 A 506060015402R CUSHION BOTTOM,LP1948 2 150 A...
  • Page 52 Service Manual 2 160 A 506340004700R LABEL BLANK 101X50mm DELL EMEA CARTON 2 170 A 506380002622R TAPE, WRAPPING TYPE PRINTED(DELL), BLACK 2 180 A 713000044300R ASSY PACK,20/40STD,LP1948 2 180 A 713000044301R ASSY PACK,40HQ,LP1948 2 180 A 713000044304R ASSY PACK,AIR CARGO (20STD),LP1948...
  • Page 53 Service Manual 3 130 A 509000001000R BOLT,#4-40x12.5,Ni ROHS 3 140 A 505040209700R MYLAR,FOR CHASSIS ,LP1931 3 150 A 506380001730R TAPE ACE 85x20mm LE1913 3 160 A 502040604800R SHIELD LIGHT LP1703 ROHS 3 170 A 505040209701R MYLAR,FOR PANEL,LP1931 3 180 A 502040604700R SHIELD USB LP1703 ROHS 3 190 A 506250024300R LABEL, CARD,LP1931...

  • Page 54: Attachment 2- Schematic

    Service Manual 40 A 506039001400R CORNER PAPER 200x50x50mm ROHS 50 A 506431000300R FILM,PE 500mmx900M ROHS 60 A 506120400100R BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS 70 A 506380002612R TAPE,WRAPPING TYPE,50Mx82mm 750020200100R SUB-ASSY,function-buttons,printing,LP193 10 A 501030211100R BUTTON,LP1931 750030200000R SUB-ASSY,BACK,COVER,printing,LP1931 10 A 501020224101R BACK,COVER ,LP1931 701000010700R ASSY,CHASSIS,FOR LP1931 10 A 502090313100R CHASSIS,FOR LP1931...

  • Page 55: Contents

    Service Manual 1909Wf Schematic Diagram LVDS Interface 2 Layers PCB. Reversion of History 1909W SCHEMATIC sheet initial 1.0 contents 1.1 top level 2.0 VGA input 3.0 DVI input 4.0 Scalar 5.0 DC input 6.0 USB 7.0 keypad Title contents Size Document Number <Doc>...

  • Page 56: Top Level

    Service Manual 2.0 VGA input 4.0 Scalar 6.0 USB RED+ RED+ RED- RED- USB_EN USB_EN GREEN+ GREEN+ GREEN- GREEN- USB_DET USB_DET 6.0 USB BLUE+ BLUE+ 5.0 DC input BLUE- BLUE- HSY NC HSY NC +1.8V +1.8V VSY NC VSY NC BRIGHTNESS BRIGHTNESS VGA_DET...

  • Page 57: Vga Input

    Service Manual CN102 Note 1 DZ11AA1-H5W6-4F RB101 R114 75 1% C113 0.047u/16V R0603 RB102 R115 75 1% C114 0.047u/16V R0603 RB103 R116 75 1% C115 0.047u/16V R0603 VGA5V Note 1 C116 C117 C118 R122 75 1% C119 0.047u/16V R123 75 1% C120 0.047u/16V R124 75 1%...

  • Page 58: Dvi Input

    Service Manual CN201 DVI-D_CON VCC5V DVI5V DVI_RX2- R201 RX2- RX2- DVI_RX2+ R202 RX2+ RX2+ DVI_RX1- R203 RX1- RX1- D201 DVI_RX1+ R204 C201 BAV70 RX1+ RX1+ 0.1/16V DVI_RX0- R205 RX0- RX0- DVI_RX0+ R206 RX0+ RX0+ R211 R212 R213 DVI_RXC+ R207 U201 RXC+ RXC+ DVI_RXC-...

  • Page 59: Scalar

    Service Manual +3.3V VCC5V AVDD_33 VDDC_18 AVDD_18 VDDP_33 R181 set 10K R182 set 20K when use to Vcc 5V detect C166 RED+ RIN0P VCC5V_DET R182 RED- RIN0M GPIO_P00/SAR0 R154 GREEN+ GIN0P GPIO_P01/SAR1 PLUS R155 GREEN- GIN0M GPIO_P02/SAR2 MINUS R159 C152 0.047u/16V SOGIN0 GPIO_P03/SAR3 SELECT...

  • Page 60: Dc Input

    Service Manual To Pow er/Inverter Board Note 1 Note 2 CN101 +3.3V +3.3V +1.8V 10P 2.0mm VCC5V D101 U101 U102 AP1084K33LA LD1117AL-1.8V VOUT VIN VOUT +1.8V R101 0 R1206 CCFL_ON/OFF C101 C104 C106 C103 C107 BRIGHTNESS 5 0.1/16V 22u/16V 0.1/16V/NC Audio_det 5 C102 C105...

  • Page 61: Usb

    Service Manual VCC5V 5V_USB USB_3.3V Q301 U301 LD1117AL-3.3V AP2305GN FB306 300Ω 2A VCC5V VIN VOUT FB301 P301 C302 C305 C306 C304 R321 0.1/16V 47u/16V COMM CHOCK 100u/16V R322 USB_DET 5 UC11123-LK1 USB_DET USB_EN USB_EN Q302 PMBT3904 C314 R302 10K Heigh Q303 PMBT3904 0.1/16V...

  • Page 62: Keypad

    LED_AMBER LED_A POWER POWER VCC5V VCC5V R176 R177 Q108 Q107 LED_A_EN 5 LED_B PMBT3906 PMBT3906 R169 R166 R168 R165 R0603 R0603 LED_A LED_B Title Keypad Size Document Number <Doc> Date: Wednesday , July 02, 2008 Sheet E:\1909W\proto3\dell 1909w qual if.pdf...
  • Page 63 Service Manual power board schematic Dell 1909Wf AIO Power/Inverter Schematic Diagram SEC/CMO PANEL Reversion of History SCHEMATIC SHEET REV1 1.1 Contents REV2 1.2 Inverter board INL836 1.3 Power board LD7575 FOXCONN Title 1.1 Content Size Document Number Date: Monday , August 25, 2008...
  • Page 64 Service Manual +16V 3.3V Lightest DIP EEL19 SPW-060 Brightness 0V of lightest 2.2uF/16V 0.1/50V NC/15pF/3KV 3pF/3KV R3 10K open 1500pF/50V X7R 470uF/35V 0.1/50V 1000pF/50V X7R 1000pF/50V X7R 3.3V Off SST_CMP ISEN CCFL_ON/OFF 1nF/50V/NC 1nF/50V/NC 0V On AP9971GD 3pF/3KV 2700pF/50V X7R GNDA VDDA ON/OFF...
  • Page 65 Signal_GND F850 2.2u/50V 1K 1% 0.22/50V 5A 250V I851 Signal_GND TL431 R860 3K3 1% CN850 HF-301PCB 7MM AC INPUT(90V~264V) Title 1.3 Power BD LD7575 Size Document Number Date: Monday , August 25, 2008 D:\DELL 1909Wf\ circuit\PVT\1909Wf AIO PI circuit .pdf...
  • Page 66 Service Manual Attachment 3- PCB Layout power/inverter bd: power/inverter board: Top Layer...
  • Page 67 Service Manual Bottom Layer...
  • Page 68 Service Manual...
  • Page 69 Service Manual I/F board: Top Layer Bottom Layer...
  • Page 70 Service Manual Keypad: USB convert board...
  • Page 71 Service Manual...

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