Dell E190Sf- Manuals

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

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...

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...

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...

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 ...

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...

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...

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...

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...

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-...

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...

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...

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....

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...

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/...

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...

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...

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 ...

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-...

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 ...

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...

Service Manual 44 Attachment 2- Schematic E190S ST gm2621 RevA

Service Manual 55 Attachment 3- PCB Layout IF board Top Layer

E190S   Pin Assignments VGA Connector   Flat Panel Specifications Switch off - - - Off Less than 0.5 W VESA Modes Horizontal Sync Vertical Sync Video Power Indicator Power Consumption Normal operation Active Active Active Green 25 W (maximum) 19 W (typical) Active-off mode Inactive Inactive Blanked ...

the user can select different settings, but in most cases monitor installation is automatic. LCD Monitor Quality & Pixel Policy During the LCD Monitor manufacturing process, it is not uncommon for one or more pixels to become fixed in an unchanging state. The visible result is a fixed pixel that...

Back to Contents Page   Appendix Dell™ E170S/E190S Flat Panel Monitor User's Guide     Safety Instructions    FCC Notice (U.S. Only) and Other Regulatory Information    Contacting Dell   CAUTION: Safety Instructions For information on safety instructions, see the Safety Information that ships with y...

Back to Contents Page   Setting Up Your Monitor Dell™ E170S/E190S Flat Panel Monitor  If you have a Dell ™ desktop or a Dell ™ portable computer with internet access 1. Go to http://support.dell.com ,  enter your service tag, and download the latest driver for your graphics card. 2. After installing...

Back to Contents Page   Setting Up Your Monitor Dell™ E170S/E190S Flat Panel Monitor  If you have a non Dell™ desktop, portable computer, or graphics card 1. Right-click on the desktop and click Properties . 2. Select the Settings tab. 3. Select Advanced . 4. Identify your graphics controller suppli...

Back to Contents Page   Operating the Monitor Dell™ E170S/E190S Flat Panel Monitor User's Guide    Using the Front Panel Controls    Using the On-Screen Display (OSD) Menu    Setting the Maximum Resolution    Using the Dell Soundbar (Optional)    Using the Tilt   Using the Front Panel Use the contro...

  OSD Warning Messages A warning message may appear on the screen indicating that the monitor is out of sync. This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either the signal is too high or too low for the monitor to use. See  Specifications  f...

¡ Go to the support site for your computer and download the latest graphic drivers. ¡ Go to your graphics card website and download the latest graphic drivers. Using the Dell Soundbar (Optional) The Dell Soundbar is a stereo two channel system mountable on Dell flat panel displays.   The Soundbar ha...

Dell™ E170S/E190S Flat Panel Monitor      Information in this document is subject to change without notice. © 2009 Dell Inc. All rights reserved. R e p r o d u c t i o n o f t h e s e m a t e r i a l s i n a n y m a n n e r w h a t s o e v e r w i t h o u t t h e w r i t t e n p e r m i s s i o n o ...

Back to Contents Page   Setting Up the Monitor Dell™ E170S/E190S Flat Panel Monitor  User's Guide    Attaching the Stand    Connecting the Monitor    Organizing Your Cables    Attaching the Soundbar (Optional)    Removing the Stand   Attaching the Stand Remove the monitor cover and place the monitor...

1. Plug the power cables for your computer and monitor into a nearby outlet. 2. Turn on the monitor and the computer. If your monitor displays an image, installation is complete. If it does not display an image, see Solving Problems . Organizing Your Cables   After attaching all necessary cables to ...

Back to Contents Page   Solving Problems Dell™ E170S/E190S Flat Panel Monitor User's Guide     Self-Test    Built-in Diagnostics    Common Problems    Product-Specific Problems    Troubleshooting the Dell™ Soundbar (Optional)      Self-Test Your monitor provides a self-test feature that allows you t...