Page 2 - Service Manual Versions and Revision; No. Version Release; Initial Release; Copyright
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 o...
Page 3 - Service Manual; Table of Contents
Service Manual 2 Table of Contents CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ........................................................................................................... 3 1. SAFETY PRECAUTIONS.............................................................................................
Page 5 - Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED
Service Manual 4 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; Block Diagram; INVERTER
Service Manual 5 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, inverte...
Page 9 - Power PWM circuit
Service Manual 8 2.2 Power PWM circuit 2.2.1) Block diagram :( fig.4) 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. R850 and R851 are joined between two inputting mai...
Page 11 - I850 ,U850 will be in Auto Restart mode until the matter is got rid of .
Service Manual 10 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 ...
Page 13 - Standard; VESA
Service Manual 12 - +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 Resolution Horizontal Frequency (KHz) Vertical Frequency (Hz) 640 x 480 31.469 59.940 640 x 480 37.500 75.000 80...
Page 14 - AC input connector Pin Assignment; Line; Inner Connector Pin Assignment; Pin Symbol
Service Manual 13 Power supply for panel+5V V DD 90% 90% 10% 0V 10% T1 T2 T5 T6 T7 Signals Valid data (Digital RGB, HS, VS, DE, CLOCK) 0V T3 T4 Power supply for backlight T1 (ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms) T6 (ms) T7(ms) SPEC (Samsung) 0.3~10 0.0~50 >500 >200 0.0~50 NA >1000 SPEC (LPL)...
Page 19 - Description
Service Manual 18 8.2 U105 (Serial Flash) Pin Symbol I/O Description 1 CE# I The device is enabled by a high to low transition on CE#. CE# must remain low for the duration of any command sequence. 2 SO I/O To transfer commands, addresses, or data serially into the device. 3 WP# I/O The write protect...
Page 22 - LE19D5 DISASSEMBLY BLOCK; position after sample repaired.
Service Manual 21 2. S1909WX Disassembly Block Screw,P,Cross, T,T-2*3,BLK*1 (P,Cross,M4*10,BLACK-NL)*2 LE19D5 DISASSEMBLY BLOCK FINAL ASSY*1 PANEL ASSY *1 BACK COVER ASSY *1 FRONT BEZEL ASSY *1 Rubber Foot *2 For CMO front bezel *1 logo plate *1 Power -button *1 shield EMI LP2207* 5 chassis *1 CHASS...
Page 23 - LE19D5 ASSEMBLY BLOCK; Note: 1. The arrows point out the direction of assembly
Service Manual 22 3. S1909WX Assembly Block (P,Cross,M4*10,BLACK-NL)*2 LE19D5 ASSEMBLY BLOCK (I,Cross,M3*4,Zn-Cc)*4 (P,Cross,W/WAS,M3*6,Zn-Cc)*3 (B,Cross,W/W-SPR,M3*9,Zn)*1 (I,Cross,M3*6,Zn-Cc)*2 FFC-CABLE*1 (P,Cross,W/WAS,M3*6,Zn-Cc)*2(BOLT,#4-40,NI)*4 PANEL ASSY *1 BACK COVER ASSY*1 power-button k...
Page 24 - Chapter 5- TEST AND ADJUSTMENT; Function key Definitions; Every bottom function defining; Hot Key Operation; HOT KEY OPERATION; MENU; DESCRIPTION; POWER
Service Manual 23 Chapter 5- TEST AND ADJUSTMENT 1. Function key Definitions Every bottom function defining Power Switch with power LED indicator Power: On/Off, includes power indicator and Power ICON white- Active On Amber- DPMS Panel Controls 1. Menu: When OSD isn’t shown on screen, press [MENU] t...
Page 25 - Select the input source; OSD Control; 日本語; Factory Mode Introduction; Power
Service Manual 24 AUTO ADJUST ● Execute the AUTO ADJUST function Select Input ● Select the input source OSD Control OSD Control First Second Third Default VGA Input DVI Input Brightness 75 Yes Yes Brightness Contrast 75 Yes Yes Auto Adjust Yes No Auto Select VGA Input Source DVI-D Yes Yes RGB Input ...
Page 26 - Back: Exit from Factory mode and back to NO OSD Status.
Service Manual 25 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 t...
Page 27 - LCD supplier; Press “; Upgrade Firmware to Serial via Flash Cable by ISP_Tool V4.100.exe
Service Manual 26 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. Dell panel P/N LCD supplier Panel Supplier P/N Dell P/...
Page 28 - Fig 11
Service Manual 27 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 29 - Item Content; Menu
Service Manual 28 Item Content Equipment Test OSD function 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. Chroma Signal Generator Contrast Check 1. Set input mode to 1440×900@60...
Page 30 - Chapter 6- TROUBLE SHOOTING; Common Acknowledge; Please confirm the R/G/B color under 32gray scale pattern.; No Power and LED Off; Is the voltage at C854 in the
Service Manual 29 Chapter 6- TROUBLE SHOOTING Common Acknowledge 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. ...
Page 33 - Yes
Service Manual 32 Is the frequency 14.318MHz at #32 of IF Board U104? NO 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? Is the CN853 inserted CN103 OK? NO Yes Is the on-off co...
Page 35 - Color lost in some scale at 32-gray scale pattern
Service Manual 34 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 Change FFC Cable Change U104 OK, END OK, END NO NO
Page 36 - Chapter 7- RECOMMENDED PART LIST
Service Manual 35 Chapter 7- RECOMMENDED PART LIST Itm Category Component Type Location Supplier Component number Suppiler PN Object description Purpose 1 Function Power IC U830 SG 412000582020R SG5841JSZ IC SG5841JSZ SOP8(SG)RoHS PWM Control IC for Power 2 Function Inverter IC U1 O2 412000531630R O...
Page 37 - ATTACHMENT 1- Bill of Material; Interface board BOM
Service Manual 36 ATTACHMENT 1- Bill of Material 1. Interface board BOM 20080122 ITEM P/N Revision Description Supplier Usage Location 791431300800R PCBA,I/F BOARD,W/O SPK LE19D5-812 ROHS 10 629030015700R PROGRAM,W/O SPK LE19D5-812 ROHS 1 20 791431320800R PCBA,I/F BOARD,W/O SPK,MI LE19D5-812 ROH 1 3...
Page 46 - Attachment 2- Schematic
Service Manual 45 70 506380002612R TAPE,WRAPPING TYPE,50Mx82mm 佳普森 , 0 ROL A 20080626 ITEM P/N Description Supplier Usage Un Revision 714030016310R ASSY,FRONT BEZEL(For CMO panel)L,LE19D5 A 10 501010216310R FRONT BEZEL(For CMO panel)L,LE19D5 1 PC A 20 3C0702200-000-GX2 LOGO PLATE,DELL,LE19D5 1 PC 30...
Page 48 - DCIN
Service Manual 47 Adjus t_Brightness 4 H igh ON VCC 3. 3 + C137 4.7u/16V PAN EL_EN ABLE 4 + C130 100u/16V R 150 27K C133 0.1/16V VCC 1. 8 +5 V R 147 100K VCC 3. 3 R191 0 /NC C 170 1000p/50V R 142 0 High OF F U 108 LD1117 A L -1 .8 V 3 1 2 VI N ADJ VOU T VCC 1. 8 4 + C 135 100u/16V C 134 0. 1/ 16V VC...
