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 2009/02/16 Initial Release Copyright Copyright 2009 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; 錯誤
Service Manual 2 Table of Contents CHAPTER 1- PRECAUTIONS & SAFETY NOTICES ..................................................................................................................... 0 H 3 1. SAFETY PRECAUTIONS ..............................................................................
Page 4 - Use only the specified power cord that comes with this monitor.; PRODUCT SAFETY NOTICE; Adjustment of this product please refers to the user’ manual.
Service Manual 3 Chapter 1- PRECAUTIONS & SAFETY NOTICES 1. 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: z This monitor s...
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
Service Manual 5 Chapter 3- CIRCUIT THEORY 1. Block Diagram This Block is comprised of interface board and switching power supplier board which is included by inverter for CCFL 2. Electronic Circuit Theory 2.1 Inverter PWM circuit 2.1.1 Inverter Control circuit operations:(fig.2) Fig.2 DC_5V through...
Page 7 - voltage less than ~1.0V for longer than 20ms will disable the IC.
Service Manual 6 push-pull configuration.. SSTCMP(pin14) applys the soft-start function and the loop compensation funtion.C5 at SSTCMP compensates the feedback loop and provides good transient response to load changes. When the IC is enabled,it starts from the strinking mode and the TIMER(pin8) is a...
Page 8 - Power PWM circuit operations
Service Manual 7 2.2 Power PWM circuit operations 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 inputt...
Page 10 - when inrush current is too large.
Service Manual 9 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 current-mode PWM controller with excellent power-saving ...
Page 11 - and L852 are used to smooth the current waves that are from
Service Manual 10 D854 is used to rectify the inducted current. R862 and C861 are used to store energy when current is reversed. The parts including C862, C8 65 and L852 are used to smooth the current waves that are from D855, then 13V voltage is supplied. D856 and D857 are SCHTKY diodes used to rec...
Page 12 - Standard; VESA; Power On/Off Sequency; Software Power ON/OFF
Service Manual 11 - +5V is from switching mode power supply for panel and Regulater U601 - +3.3V generates from Regulater U601 supply for U401, U301, U402 used. - +1.8V generates from Regulater U602 through C603, C604 filtering which is output +1.8V for U401 used. 3. FACTORY PRESET TIMING TABLE Stan...
Page 13 - D-SUB Connector Pin Assignment; Pin Symbol
Service Manual 12 Power supply for 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 back light T1(ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms) T6 (ms) T7(ms) SPEC(LGD) 0.5~10 0.001~50 >200 >200 0.001~50 >500 SPEC(HSD) 0.5~10 0~50 &g...
Page 15 - Description
Service Manual 14 8. Key Parts Pin Assignments 8.1 U401 (gm2621-LF) I/O Legend: P=Power, G=Ground, O=Output, I=Input, A=Analog Pin Symbol I/O Description 1 AVSS_BIAS G Analog ground for LVDS PLL and Bandgap 2 VDD_OUT_33 P Digital 3.3V supply for LVDS output 3 RESERVED O Reserved; Do not connect 4 RE...
Page 20 - bezel assy 1PC; stand assy 1pc; DELL E190Sf DISASSEMBLY BLOCK
Service Manual 19 2. E198FPf Disassembly Block bezel assy 1PC LOGO 1PC front-bezel 1PC key button 1PC release-metal-button 1pc vesa-release-button 1pc stand assy 1pc release button assy 1pc chassis 1pc chassis assy 1pc slide 1pc fix-plate1 1pc fix-plate2 1pc spring 2pc screw,F(90 度 ),cross, M3*4,Zn-...
Page 21 - DELL E190Sf ASSEMBLY BLOCK
Service Manual 20 3. Assembly Block PCBA,P/I board,LE1966-7B0 1pc screw,p,cross,W/WAS,M3*8,Zn-Cc 2PCSscrew,B,cross,W/W(T),M4*6,Zn-Cc 1PC PCBA,I/F board,LE1966-8B0 1pc screw,p,cross,W/WAS,M3*8,Zn-Cc 2PCSBOLT,#4-40*12.5,Ni 2pcsscrew,I,M3*6,Zn-Cc 2PCS screw,F(90 度 ),cross, M3*4,Zn-Cc 2pcs SHELD EMI, LP...
Page 22 - Chapter 5- TEST AND ADJUSTMENT; Function key Definitions; First Second
Service Manual 21 Chapter 5- TEST AND ADJUSTMENT 1. Function key Definitions Power Switch Power: On/Off, includes power indicator and Power ICON Power LED Green- Active On Amber- DPMS Front Panel Controls Adjust Up: (+)symbol molded into button, move up the highlight bar Adjust Down: (-) symbol mold...
Page 24 - Upgrade Firmware to Serial via Flash Cable by Fox_VISP_Programmer; Connect the monitor and PC via a VGA cable.
Service Manual 23 6. EDID (Rewrite EDID data to EEPROM by Fox_VEDID_Programmer) The Write-Protect Pin of EEPROM is generally pulled up to enable EDID to be read only; EDID cannot be written at that status. The following steps enable EDID to be written: 6.1 Connect the monitor and PC via a VGA cable....
Page 26 - Chapter 6- TROUBLE SHOOTING; Common Acknowledge; Item; Menu
Service Manual 25 Chapter 6- TROUBLE SHOOTING 1. Common Acknowledge z If you change the M/B, be sure that the U301 and U402 these two components also changed to the Item Content Equipment Test OSD function 1.Signal is set as 1280×1024@60Hz under General-1 2. LCM button are from left to right, checki...
Page 27 - Is there DC1
Service Manual 26 new M/B because there was program inside. If not, please re-write EDID or upload firmware into serial flash(U402) via VGA Cable. How to do please refer to the Page 19. z If you adjust clock and phase, please do it at condition of Windows shut down pattern. z Please confirm the R/G/...
Page 29 - Yes
Service Manual 28 Change U105 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? Is the CN851 inserted CN101 OK? NO Yes Is the on-off control signal #109 of U105 high-low co...
Page 31 - Check for line defects from the gray color test screen.; Color lost in some scale at 32-gray scale pattern
Service Manual 30 6. At 32-gray scale pattern, color lost in some scale 7. Diagnostic Test Pattern 1. Press “menu”and “+”simultaneously and hold for 2 sec to enter to the diagnostic. Check for line defects from the gray color test screen. 2. Press “+”to advance to the next test pattern - Red color s...
Page 34 - Chapter 7- RECOMMENDED PART LIST
Service Manual 33 Chapter 7- RECOMMENDED PART LIST Critical Parts List E190S Critical Components List Content PN Description Supplier Usage Supplier Location 412040098880R IC GM2621-LF-BC,QFP-128(GENESI S)RoHS ST, Scaler U401, 430631050060R WFR. 5P 2.0MM 180° W/L ROHS FOXCONN, JOWLE, To Power Board ...
Page 35 - MNT BOM
Service Manual 34 410050114290R XSTR AP2764AI-A N-CH 650V/9A TO-220CFM APEC, 410050103050R XSTR FMA09N65GX N-CH TO-220F(FUJI) RoHS FUJI, 410050057280R XSTR STP8NK80ZFP N-CH TO220FP (ST) ST, Switch MOS Q850 492421400100H PCB,PCB,P/I ,1/OSP /CEM1/16,LE19S1,HF HUIHO, TATCHUN, PCB 492422200000H PCB,CRL-...
Page 41 - PCBA IF BOM
Service Manual 40 40 419314730060R C SMD (0603) X7R 0.047uF 50V,K RoHS DARFON,TDK,WALSIN,YAGEO, 1 C5, 50 419312720060R C SMD(0603) X7R 2700PF/50V K RoHS DARFON,TDK,WALSIN,YAGEO, 2 C7,C8, 60 419313320070R C SMD(0805) X7R 3300PF/50V K RoHS DARFON,TDK,WALSIN,YAGEO, 2 C9,C10, 70 411020047210R DIO BAV70 ...
Page 43 - PCBA KEYPAD BOM
Service Manual 42 180 414918010350R RES SMD (0402) 10K Ω J,RT,RoHS TA-I,UNIOHM,WALSIN,YAGEO, 11 R502,R429,R420,R419,R418,R415,R414,R424,R423,R422,R421, 190 414918100210R RES SMD (0402) 10K Ω F,RT,RoHS TA-I,UNIOHM,WALSIN,YAGEO, 1 R416, 200 414918200210R RES SMD (0402) 20K Ω F,RT,RoHS TA-I,UNIOHM,WALS...
Page 45 - Attachment 2- Schematic
Service Manual 44 Attachment 2- Schematic E190S ST gm2621 RevA
Page 56 - Attachment 3- PCB Layout; IF board Top Layer
Service Manual 55 Attachment 3- PCB Layout IF board Top Layer
