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17" lcd color monitor dell E177FPC 1 service service service horizontal frequency 30 khz to 81 khz table of contents safety notice any person attempting to service this chassis must familiarize himself with the chassis and be aware of the necessary safety pr ecautions to be u sed when servicing electronic equipment cont aining high voltages. table of contents.......??.................??...........?........1 revision list.?......... ...............???.... ............ ??......2 ecn history.?........................???................??......3 important safety noti ce.????.?........... .......??......4 1.monitor specifications..............................???........5 2.lcd monitor descr iption???????????.......6 3.operation instructions????...............??...........7 3.1 general instructions??????????????.7 3.2.control buttons?????.?..............??...............7 3.3 on screen menu/display (osd).......?.??..........8 3.4 adjusting the pict ure...........??? ??.........?..10 4.input/output specific ation............??????......?10 4.1.input signal connector..... .......????..... ...........10 4.2.factory preset display modes.........................11 4.3.power supply requ irements................ ...............12 4.4.panel specification .....??????....... ...........12 4.5.definition of pixe l.....??????.... ...........???.12 5.block diagram??.?...................????................14 5.1.monitor exploded view?????????............14 5.2.software flow chart???..??????....?.......24 5.3.electrical block diagram??????..?..?.......27 6.schematic diagram???..................................?.....28 6.1main board......???......................................28 6.2 power board??..??.??....................................33 7.pcb layout..??...????.......... .................. ...........35 7.1.main board?????..?....... .................................35 7.2.power board?????........................................37 7.3.key board???????.....................................39 8.maintainability????.......................................40 8.1.equipments and tools requirement..??.?...........40 8.2.trouble shooting?????? ?.................. ...........41 9.white-balance, luminan ce adjustment...????......49 10.isp instruction?????.??.................................51 11.check list????? ????????????...55 12.bom list????........... ................ ................ ..........58 13.different parts list????..?????????? 93 caution: use a separate isolation tran sfomer for this unit when servicing page page description description http://www..net/ datasheet pdf - http://www..net/
17" lcd color monitor dell E177FPC 2 revision list revision release date revise histor y tpv model a00 may-26-2006 initial release t76cm5hka2dfnp a01 jun-28-2006 add new model in item 13 t76cm5hka2dznp t76cm9hka2dfncp t76gm5hka2dfnp t76gm5hka2dznp t76gm9hka2dfncp a02 aug-21-2006 add new model in item 13 t76cm9hka2dzncp t76cm9hma2dzncp t76gm9hma2dfncp a03 aug-28-2006 add new model in item 13 t76gm9hba2dfncp a04 sep-11-2006 add new model in item 13 t76am9hka2dfnp t76am9hka2dznp a05 sep-15-2006 add new model in item 13 t76sm9hka2dfnp t76sm9hka2dznp t76cm9hja2drncp a06 sep-21-2006 add new model in item 13 t76gm9hja2dlncp t76gm9hka2dzncp a07 oct-14-2006 add new model in item 13 t76cm9hma2dfncp t76cm9hma2dlncp t76gm9hba2dzncp t76gm9hma2drncp t76cm9hma2drncp a08 nov-14-2006 add new model in item 12 t76cm9hja2dlncp a09 nov-14-2006 add new model in item 13 t76cm9hba2dfncp t76gm9hja2drncp t76gm9hma2dzncp t76sm9hba2dfncp t76sm9hja2drncp t76sm9hma2dfncp t76sm9hma2dlncp t76sm9hma2drncp t76sm9hma2dzncp a10 dec.-08-2006 add new model in item 13 t76sm9hba2dzncp a11 may-14-2007 add new model in item 12 t76am9hmfdddn a12 may-20-2007 add new model in item 13 t76am9hmfddgn t76km9hka2dfn t76km9hka2dfnc t76sm9hmfdddn t76sm9hmfddgn a13 jun-17-2007 add new model in item 13 t76km9hja2dlnc t76km9hma2dfnc a14 dec.-05-2007 add ?ecn history? a15 dec.-20--2007 a dd the cbpc , pwpc version all http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 3 ecn history ecn no. change description service deposition cut-in date msr ecn-d-ee098 ecr02756 firmware revision change from v1c02 to v1c03 update the vista fw on vff return mfd before 2007-1-1 2006/12/29 a02 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 4 important safety notice proper service and repair is important to the safe, reli able operation of all aoc company equipment. the service procedures recommended by aoc and described in this service manual are effective methods of performing service operations. some of these se rvice operations require the use of t ools specially designed for the purpose. the special tools should be used when and as recommended. it is important to note that this manual contains va rious cautions and notices which should be carefully read in order to minimize the risk of perso nal injury to service pers onnel. the possibility exists that improper service methods may damage the equipment. it is also important to understand that these cautions and notices are not exhaustive. aoc could not possibly know, evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazard ous consequences of each way. consequently, aoc has not undertaken any such broad evaluation. accordingly, a servic er who uses a service procedure or tool which is not recommended by aoc must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected. hereafter throughout this manual, aoc company will be referred to as aoc. warning use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock, fire, or other hazards. under no circumstances should the original design be modi fied or altered without written permission from philips. aoc assumes no liability, express or implied, arisi ng out of any unauthorized modification of design. servicer assumes all liability. for products containing laser: danger-invisible laser ra diation when open. avoid direct exposure to beam. caution-use of controls or adjustments or performanc e of procedures other than those specified herein may result in hazardous radiation exposure. caution -the use of optical in struments with this product will increase eye hazard. to ensure the continued reliability of this product, use only original manufacturer's replacement parts, which are listed with th eir part numbers in the parts list section of this service manual. take care during handling the lcd module with backlight unit -must mount the module using mounting holes arranged in four corners. -do not press on the panel, edge of the frame strongly or elec tric shock as this will result in damage to the screen. -do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel. -protect the module from the esd as it ma y damage the electronic circuit (c-mos). -make certain that treatment person?s b ody is grounded through wristband. -do not leave the module in high temperature and in areas of high humidity for a long time. -avoid contact with water as it may a short circuit within the module. -if the surface of panel becomes dirty, please wipe it off with a soft material. (cleaning with a dirty or rough cloth may damage the panel.) http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 5 1. monitor specifications lcd panel screen type active matrix - tft lcd size 430mm(17.0") pixel pitch 0.264mm(h) x 0.264mm(v) response time 8ms(type) input video r, g, b analog interface separate sync h/v ttl h-frequency 30khz ? 81khz v-frequency 56 - 76hz display colors 16.2m colors dot clock 135mhz(max) max. resolution 1280 x 1024 plug & play vesa ddc epa energy star ? on mode maximum 40w; typical 34w power saving <=2w off mode <=1w input connector d-sub 15pin input video signal analog:0. 7vp-p(standard) 75 ohm, positive active display area horizontal : 337.92mm vertical: 270.336mm power source 100 v ~ 240 v 10 %vac, 50 3hz, 60 3hz environmental considerations operating temp: 5 to 35c operating humidity: 10% to 80% storage temp.: -20 to 60c weight monitor (stand and head): 5.2kg monitor flat panel only (vesa mode): 4.0 kg weight with packaging: 6.4 kg http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 6 2. lcd monitor description the lcd monitor will contain a main board, pwpc board, keypad board, which house the flat panel control logic, brightness control logic and ddc. the power board will provide ac to dc inverter voltage to drive the backlight of panel and the main board chips each voltage. monitor block diagram video signal, ddc power board flat panel and ccfl backlight main board keyboard rs232 connector for white balance adjustment in factory mode ccfl drive. ac-in 100-240v host computer http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 7 3. operation instructions 3.1 general instructions press the power button to turn the monitor on or off. the other control buttons are located at front panel of the monitor. by changing these settings, the picture can be adjusted to your personal preferences. - the power cord should be connected. - connect the video cable from the monitor to the video card. - press the power button to turn on the m onitor, the power indicator will light up. 3.2 control buttons a menu the 'menu' button is used to open t he on-screen display (osd), select function icons, exit from menus and sub-menus, and to exit the osd. see accessing the menu system. b brightness/contrast hot key use this button for direct access to the 'brightness ' and 'contrast ' control menu. b c - and + buttons use these buttons to adjust (decrease/ increase ranges) items in the osd. c auto adjust use this button to activate automatic setup and adjustment. the following dialog will appear on screen as the monitor self-adjusts to the current input: auto adjust in progress auto adjustment button allows the monitor to self-adjust to the incoming video signal. after using 'aut o adjustment', you can further tune your monitor by using the 'pixel cloc k' and 'phase' controls in the osd. d power button & indicator the green led indicates the monitor is on and fully functional. an amber led indicates dpms power save mode. the power button turns the monitor on and off. 1 menu selection button 2 brightness contrast / down (-) button 3 auto-adjust / up (+) button 4 power button on/off button with indicator http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 8 3.3 on screen menu/display (osd) direct-access functions function adjustment method auto adjustment use this button to activate automatic setup and adjustment. the following dialog will appear on screen as the monitor self-adjusts to the current input: auto adjust in progress auto adjustment button allows the monitor to self-adjust to the incoming video signal. after using 'auto adjustment', you can further tune your monitor by using the 'pixel clock' and 'phase' controls in the osd. note: auto adjust will not occur if you press the button while there are no active video input signals, or attached cables brightness / contrast with the menu off, push button to display the 'brightness' and 'contrast' adjustment menu. the 'brightness' function adjusts the luminance of the flat panel. adjust 'brightness' first, then adjust 'contrast' only if further adjustment is necessary. "+" increase 'brightness' " - "decrease 'brightness' the 'contrast' function adjusts the degree of difference between darkness and lightness on the display screen. "+" increase the 'contrast' "-" decrease the 'contrast' http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 9 3.4 adjusting the picture 1. with the menu off, push the 'menu' button to open the osd system and display the main features menu. a function icons b main menu c menu icon d sub-menu name e resolution 2. push the - and + buttons to move between the functi on icons. as you move from one icon to another, the function name is highlighted to reflect the function or group of functions (sub-menus) represented by that icon. see the table below for a complete list of all the functions available for the monitor. 3. push the 'menu' button once to activate the highlight ed function; push -/+ to select the desired parameter, push menu to enter the slide bar. then use the - and + buttons, according to the indicators on the menu, to make your changes. 4. push the 'menu' button once to return to the main menu to select another function or push the ?menu? button two or three times to exit from the osd. http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 10 icon menu name and sub-menus description exit this is used to exit out of the 'main menu'. positioning: horizontal vertical 'positioning' moves the viewing area around on the monitor screen. when making changes to eit her the 'horizontal' or 'verti cal' settings, no changes will occur to the size of the viewing area; the image will simply be shifted in response to your selection/change. minimum is '0' (-). maximum is '100' (+). image settings: auto adjust even though your computer system can recognize your new flat panel monitor on startup, the 'auto adjustment ' function will optimize the di splay settings for use with your particular setup. note: in most cases, 'auto adjust' will produce the best image for your configuration; this function can be di rectly access via auto adjustment hotkey. pixel clock the 'phase' and 'pixel clock' adjustments allow you to more closely adjust your monito r to your preference. these settings are accessed through the main osd menu, by selecting 'image settings'. use the - and + buttons to adjust away in terference. minimum: 0 ~ maximum: 100 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 11 phase if satisfactory results are not obtaine d using the 'phase' adjustment, use the 'pixel clock' adjustment and then use 'phase' again. note: this function may change the width of the display image. use the ' horizontal ' function of the ' position ' menu to center the display image on the screen. color settings: 'color settings' adjusts the color temperature and saturation. normal preset 'normal preset' is selected to obtain the default (factory) color settings. blue preset 'blue preset' is selected to obtain a bluish tint. this color setting is typically used for text based applications (spreadsheets, pr ogramming, text editors etc.). red preset 'red preset' is selected to obtain a r edder tint. this color setting is typically used for color intensive applications (photograph image editing, multimedia, movies etc.). http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 12 user preset 'user preset': use the plus and minu s buttons to increase or decrease each of the three colors (r, g, b) independently, in single digit increments, from '0' to '100'. note: ' color temperature ' is a measure of the 'warmth' of the image colors (red/green/blue). the two available presets ('blue' and 'red') favor blue and red accordingly. select each one to see how each range suits your eye; or utilize the 'user preset' option to customize the color settings to your exact choice. osd settings: each time the osd opens, it displays in the same location on the screen. 'osd settings' (horizontal/vertical) provides control over this location. horizontal position - and + buttons move osd to the left and right. vertical position - and + buttons move osd down and up. osd hold time: the osd stays active for as long as it is in use. 'osd hold time': sets the length of time the osd will remain active after the last time you pressed a button. use the - and + buttons to adjust the slider in 5 second increments, from 5 to 60 seconds. note: default 'osd hold time' is 20 seconds. osd lock 'osd lock': controls us er access to adjustments. when 'yes' (+) is selected, no user adjustments are allowed. all buttons are locked except the menu button. all buttons can be locked or unlocked press the 'menu' button for over 15 seconds. to unlock the osd 'menu'. note: when the osd is locked, pressing the ' menu ' button will take the user directly to the ' osd settings ' menu, with 'osd lock' preselected on entry. select ' no ' (-) to unlock and allow user access to all applicable settings. http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 13 language: language sets the osd to display in one of five languages (english, espa?ol, fran?ais, deutsch, japanese). note: the language chosen affects only the language of the osd. it has no effect on any software running on the computer. factory reset: 'factory reset' returns the settings to the factory preset values for the selected group of functions. 'exit' is used to ex it out of 'factory reset' menu. for 'all settings', all user adjustable settings are reset at one time except 'language settings'. osd warning messages a warning message may appear on the screen indi cating that the monitor is out of sync. cannot display this video mode optimum resolution 1280 x1024 60hz this means that the monitor cannot synchr onize with the signal that it is receiving from the computer. either the signal is too high or too low for the monitor to use. s ee specifications for the hori zontal and vertical frequency ranges addressable by this monitor. recommended mode is 1280 x 1024 @ 60hz. note: the floating 'dell - self-test feature check' dial og will appear on-screen if the monitor cannot sense a video signal. occasionally, no warning message appears, but the screen is bl ank. this could also indicate that the monitor is not synchronizing with the computer. see troubleshooting for more information. http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 14 4. input/output specification 4.1 input signal connector pin no. description pin no. description 1. red video 9. computer 5v/3.3v 2. green video 10. gnd-sync 3. blue video 11. gnd 4. gnd 12. ddc-serial data 5. self-test 13. h-sync 6. r-ground 14. v-sync 7. g-ground 15. ddc-serial clock 8. b-ground vga connector layout 15 6 10 11 15 4.2 factory preset display modes vesa modes horizontal vertical mode resolution total nominal frequency +/- 0.5khz sync polarit y nominal freq.+/- 1hz sync polarity nominal pixel clock (mhz) vga 640x480@60hz 800 x 525 31.469 n 59.940 n 25.175 640x480@75hz 840 x 500 37.500 n 75.00 n 31.500 800x600@60hz 1056 x 628 37.879 p 60.317 p 40.000 800x600@75hz 1056x625 46.875 p 75.000 p 49.500 xga 1024x768@60hz 1344x806 48.363 n 60.004 n 65.000 1024x768@75hz 1312x800 60.023 p 75.029 p 78.750 sxga 1152x864@75hz 1600x900 67.500 p 75.000 p 108.00 1280x1024@60hz 1688x1066 64.000 p 60.000 p 108.00 1280x1024@75hz 1688x1066 79.976 p 75.025 p 135.00 ibm modes mode resolution total nominal frequency +/- 0.5khz sync polarit y nominal freq. +/- 1 hz sync polarity nominal pixel clock (mhz) dos 720x400@70hz 900 x 449 31.469 n 70.087 p 28.322 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 15 4.3 power supply requirements a/c line voltage range 100 v ~ 240 v 10 % a/c line frequency range 50 3hz, 60 3hz input voltage transients 280 volts ac for 10 sec @40 current 0.6a max. at 100v, 0.35a max. at 240 v peak surge current < 60a peak at 240 vac and cold starting < 30a peak at 120vac and cold starting leakage current < 3.5ma power line surge no advance effects (no loss of information or defect) with a maximum of 1 half-wave missing per second http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 16 4.4 panel specification 4.4.1 display characteristics for lm170e01-tlb3 panel for lm170e01-tlb4 panel for claa170ea07q rev.373/3a3 panel http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 17 optical characteristics for lm170e01- tlb3/tlb4 panel http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 18 for claa170ea07q rev.373/3a3 panel http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 19 4.5 definition of pixel defects for lm170e01- tlb3/tlb4 panel dot defect bright dot dots (sub-pixels), which appeared brightly in the screen when the lcm displayed with dark pattern. - r, g or b 1 dot --------------------------------- 0 max - adjacent 2 dots -------------------------------- 0 max - total amount of bright dots -------------------- 0 max - minimum distance of bright dots --------------- na dark dot dots (sub-pixels) which appeared dark ly in the screen when the lcm displayed with bright pattern. - 1 dot -------------------------------------------- 4 max - adjacent 2 dots -------------------------------- 2 max - total amount of dark dot ---------------------- 4 max - minimum distance of dark dots --------------- 15mm total amount of dot defects -------------------- 5 max (combination) note) a. every dot herein means sub-pixe l (each red, green, or blue color) b. bright dot - red or blue dots smaller than half size of sub-pixel are not counted as a defect dots. - green dots smaller than 1 / 3 size of s ub-pixel are not counted as a defect dots. c. dark dots smaller than half size of sub-pixel are not counted as a defect dots. polarizer defects where, w: width l: length d: average diameter =(a+b)/2 a. extraneous substances, which can be wiped out, like finge r print, particles, are not considered as a defect. b. defects which are on the black matrix (outside of active area) are not considered as a defect. http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 20 foreign material where, w: width l: length d: average diameter =(a+b)/2 line defect all kinds of line defects such as vertic al, horizontal or cross are not allowed. bezel appearance scratches, minor bents, stain, particles on the bezel frame are not considered as a defect. others issues, which are not defined in these criteria, shall be discussed with bot h parties, customer and supplier, for better solution. http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 21 for claa170ea07q rev.373/3a3 panel http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 22 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 23 5. block diagram 5.1 monitor exploded view http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 24 5.2 software flow chart 1 2 n y 5 y n 10 y n 12 y n 7 y n 6 4 3 8 9 14 11 13 y n 15 y n 16 17 19 y n 18 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 25 1) mcu initializes. 2) is the eeprom blank? 3) program the eeprom by default values. 4) get the pwm value of brightness from eeprom. 5) is the power key pressed? 6) clear all global flags. 7) are the auto and select keys pressed? 8) enter factory mode. 9) save the power key status into eeprom. turn on the led and set it to green color. scalar initializes. 10) in standby mode? 11) update the lifetime of back light. 12) check the analog port, are there any signals coming? 13) does the scalar send out an interrupt request? 14) wake up the scalar. 15) are there any signals coming from analog port? 16) display "no connection check si gnal cable" message. and go into standby mode after the message disappears. 17) program the scalar to be able to show the coming mode. 18) process the osd display. 19) read the keyboard. is the power key pressed? http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 26 5.3 electrical block diagram 5.3.1 main board osd control interface (cn403) scalar tsum16al-lf (include mcu, adc, osd) (u401) flash memory sst25vf010a-33- 4c-sae (u402) d-sub connector (cn405) eeprom m24c02 (u404) r g b rxd txd db15_sda, db15_scl lcd interface (cn101) h v http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 27 5.3.2 inverter/power board http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 28 6. schematic diagram 6.1 main board b3 3.input rin gin bin vsync gndr gndg gndb det_vga hsync sog ddca_sda ddca_scl +5v ddc_wp pc5v vcc3.3 vcc1.8 top a aoc tsum16al a 15 tuesday, may 16, 2006 title size document number rev date: sheet of vcc1.8 lvds output pc5v xga/sxga vlcd b5 5.panel interface vlcd b[0..9] a[0..9] b4 4.scaler rin gin sog bin gndr gndg gndb hsync vsync adj_backlight vcc1.8 vcc3.3 vctrl a[0..9] b[0..9] ddca_sda ddca_scl det_vga on_backlight on_panel +5v ddc_wp +5v tsum16al schematic vlcd b2 2.power on_panel on_backlight adj_backlight vcc1.8 vlcd +5v vctrl vcc3.3 pc5v pc5v b[0..9] vcc3.3 +5v +5v vcc3.3 a[0..9] vcc3.3 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 29 vcc3.3 c714 0.1uf/16v r703 2k 1/16w cn701 conn 2 4 6 8 10 12 1 3 5 7 9 11 q706 pmbs3904 r706 gnd +5v gnd r712 4.7k 1/16w ` +5v r707 4.7k 1/16w ` r705 4.7k 1/16w ` q701 pmbs3904 c708 4k7 r706 nc gnd q703 pmbs3904 h2 tp 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 bl_adj vlcd 5 vcc3.3 3,4 pc5v q704 ao3401l on_panel 4 4.7k + c712 100uf/16v r725 4.7k 1/16w ` +5v gnd + c717 10uf/16v adj_backlight 4 1uf r704 100 1/16w 0v ~ 5v gnd h3 tp 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 r707 vlcd 4.7k 0v ~ 3.3v c715 0.1uf/16v c709 0.1uf/16v x c708 0.1uf/16v r709 nc x bl_on d703 nc/bat54c-gs08 3 1 2 bl_adj(dc) ftd9 fd mark r721 0 1/16w ` x ftd8 fd mark r710 nc d703(bat54) vf=0.53v (worst cauae) when if=100ma. so when system power off, the system loading is about 32ma, it is safe. +5v r701 1k 1/16w ` 1k vcc3.3 3,4 1uf 1uf u701 aic1084-33pm 3 1 2 4 vin adj vout vout q701 power a aoc tsum16al custom 25 tuesday, may 16, 2006 title size document number rev date: sheet of +5v d702 ll4148 r727 10k 1/16w ` 4.7k 47 r711 10k 1/16w ` ftd7 fd mark +5v +5v mmbt3904 0 pc5v 3 +5v c718 0.1uf/16v c708 d c +5v +5v d704 ssm12l r705 gnd +5v 3,4 p w m vcc3.3 r722 nc vcc3.3 r708 10k 1/16w ` + c705 1uf/16v r702 51 1/16w n.c r723 51k 1/16w ` + c702 4.7uf/16v r717 10k 1/16w ` bl_adj vcc1.8 r714 10k 1/16w ` vctrl 4 x vcc1.8 4 c713 0.1uf/16v r701 +5v d701 ll4148 q702 cht2907 c b e on_backlight 4 c711 nc + c710 100uf/16v +5v 3,4 r705 h1 tp 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 to-263 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 30 bin 4 red+ r434 56 1/16w ` hsi c442 22pf pc5v 2 r436 56 1/16w ` d408 ll5232b 5.6v 5% c434 0.047uf vsync 4 d404 bav99 3 1 2 r445 100 1/16w ` r453 100 1/16w ` gndr 4 vcc3.3 2,4 r454 100 1/16w ` scl_vga pc5v c440 0.1uf/16v vcc3.3 vsi c443 22pf r455 1k 1/16w ` green- fb409 120 ohm bead r435 56 1/16w ` r443 100 1/16w ` c441 0.1uf/16v d409 ll5232b 5.6v 5% c444 0.1uf/16v d406 ll5232b 5.6v 5% +5v r438 75 1/16w ` r447 1k 1/16w ` gin 4 c437 0.047uf r442 100 1/16w ` rin 4 sog 4 c439 0.1uf/16v d403 bav99 3 1 2 r452 10k 1/16w ` c438 0.047uf ddca_sda 4 r441 100 1/16w ` r448 2.2k 1/16w ` input a aoc tsum16al a 35 tuesday, may 16, 2006 title size document number rev date: sheet of r446 1k 1/16w ` gndg 4 d411 ll5232b 5.6v 5% c432 0.047uf d407 bat54c 3 1 2 green+ r451 10k 1/16w ` vga_con cn405 db15 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 17 16 r444 10k 1/16w ` d412 ll5232b 5.6v 5% r437 nc c436 0.047uf r439 75 1/16w ` fb411 0 1/16w ` blue+ pc5v gndb 4 ddca_scl 4 blue- det_vga 4 ddc_wp 4 d405 bav99 3 1 2 fb410 0 1/16w ` hsync 4 pc5v r450 10k 1/16w ` red- d413 ll5232b 5.6v 5% c433 0.047uf d410 ll5232b 5.6v 5% +5v 2,4 r440 75 1/16w ` r449 2.2k 1/16w ` +5v c435 0.001uf nc sda_vga fb412 0 1/16w ` u404 m24c02wmn6 1 2 3 4 5 6 7 8 a0 a1 a2 gnd sda scl wp vcc http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 31 r412 nc/10k 1/16w ` vcc3.3 2,3 r481 10k 1/16w ` r484 10k 1/16w ` c406 0.1uf/16v c409 0.1uf/16v r483 10k 1/16w ` gndr 3 vddp r425 10k 1/16w ` r405 20k 1/16w ` r475 1k 1/16w ` b3 b4 r414 470 1/16w ` r407 nc r477 1k 1/16w ` d414 ll4148 hsync 3 gin 3 vcc3.3 b[0..9] ddca_scl 3 d i b o h f d d d d u p q ' r403 390 1/16w ` key_power bin 3 + c403 10uf/16v r413 10k 1/16w ` vcc3.3 c422 0.1uf/16v r424 10k 1/16w ` rin 3 option a5 a2 r474 1k 1/16w ` c414 0.1uf/16v fb404 600 ohm vmpll x401 14.318mhz b7 avdd vpll c415 0.1uf/16v vcc5 c401 0.1uf/16v avdd power d415 ll5232b 5.6v 5% vpll a3 r419 470 1/16w ` q403 pmbs3906 c404 0.1uf/16v b0 right power c410 0.1uf/16v menu vcc3.3 vcc1.8 2 vcc3.3 c412 0.1uf/16v r415 10k 1/16w ` a1 r406 10k 1/16w ` r428 100 1/16w ` r421 470 1/16w ` a4 c417 0.1uf/16v c431 330pf/16v vcc3.3 c430 0.1uf/16v avdd left c425 0.1uf/16v u403 24c16 1 2 3 4 5 6 7 8 a0 a1 a2 gnd sda scl wp vcc r426 10k 1/16w ` vcc3.3 menu key_right c421 22pf cn403 conn 2 4 6 8 1 3 5 7 u401 tsum16al 23 20 21 18 22 19 17 27 28 15 26 25 37 39 38 40 47 86 59 96 97 60 61 62 63 64 65 67 68 69 70 71 72 73 74 77 78 58 55 54 2 5 8 11 29 33 24 56 53 52 81 51 30 31 93 14 75 35 48 85 88 89 90 91 92 94 95 99 43 44 84 41 42 98 16 32 49 66 82 34 50 57 76 79 83 80 87 36 45 46 rin0p gin0p sogin0 bin0p rin0n gin0n bin0n hsync0 vsync0 rext refp refm sdo sck scz sdi pwm2/gpio_p24 pwm1/gpio_p25 lvackm xin xout lva2p lva2m lva1p lva1m lva0p lva0m lvb3p lvb3m lvbckp lvbckm lvb2p lvb2m lvb1p lvb1m lvb0p lvb0m lvackp lva3m lva3p gnd gnd avdd_dvi gnd gnd gnd avdd_adc vddp mode[1] mode[0] vctrl vddc ddca_sda/rs232_tx ddca_scl/rs232_rx pwm0/gpio_p26 avdd_dvi vddp gpio_p15/pwm0 gpio_p27/pwm1 gpio_p12 gpio_p00/sar1 gpio_p01/sar2 gpio_p02/sar3 gpio_p06 gpio_p07 gpio_p13 gpio_p14 gpio_p16/pwm2 gpio_p11/i2c_mda gpio_p10/i2c_mcl rst gpio_p23 gpio_p22 avdd_mpll avdd_pll vddp vddp vddc vddc vddc gnd gnd gnd gnd gnd bypass rstn nc nc nc vcc3.3 2,3 c405 0.1uf/16v c426 330pf/16v u402 sst25vf010a-20-4c-sa 1 2 3 4 5 6 7 8 ce# so wp# vss si sck hold# vdd ddca_sda 3 b8 r408 10k 1/16w ` ddc_wp 3 fb402 600 ohm r479 10k 1/16w ` c424 nc/0.1uf/16v r482 10k 1/16w ` on_panel 2 r423 4.7k 1/16w ` +5v 2,3 r417 nc/20k 1/16w ` vddc +5v leda c402 0.1uf/16v c445 0.1uf/16v vmpll a9 left adj_backlight 2 q401 pmbs3906 vdvi + c408 10uf/16v r478 100 vcc3.3 2,3 b[0..9] 5 gndg 3 vcc3.3 r480 0nc ` vcc3.3 a6 + c418 10uf/16v vdvi c411 0.1uf/16v c427 330p/16v r429 100 1/16w ` c416 0.1uf/16v scaler a aoc tsum16al custom 45 tuesday, may 16, 2006 title size document number rev date: sheet of c429 330pf/16v on_backlight 2 a8 fb405 600 ohm a7 b6 ???? r416 10k 1/16w ` c419 0.1uf/16v vcc1.8 vcc3.3 2,3 c428 330pf/16v fb403 600 ohm a[0..9] 5 det_vga 3 vcc3.3 fb406 600 ohm reset circuit vctrl 2 sog 3 b1 r404 10k 1/16w ` a0 vddp r422 4.7k 1/16w ` fb401 600 ohm vcc3.3 ledg r427 100 1/16w ` vddc r410 nc vsync 3 c407 0.1uf/16v vcc3.3 vcc3.3 b5 c413 0.1uf/16v r476 1k 1/16w ` b2 b9 key_menu right r409 470 1/16w ` gndb 3 u405 max810str (nc) 1 2 3 gnd rst vcc a[0..9] c423 22pf q402 pmbs3904 vcc3.3 2,3 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 32 lva1m rxo3+ lvb3p b5 lva1p lvb1m rxe0+ lva3p b7 lvbckp lvb2m lvbckm rxec+ lvb2p rxo1- panel interface a aoc tsum16al a 55 tuesday, may 16, 2006 title size document number rev date: sheet of lva3p lvb2m lvb1m lva0m rxo2- lva2p lva2m lvb0p a2 rxe0- lvb0p rxe2+ rxe2- b1 lvb1m lva1p b2 lvackp lvb0m lvb3m a9 lvbckp b[0..9] lvb1p lvb2m lva1m vlcd b6 lva0m rxe1- cn101 conn 2 4 6 8 10 12 14 16 18 20 22 24 1 3 5 7 9 11 13 15 17 19 21 23 lvackm rxo0- lvb1p lvb1p rxe1+ cn102 il-fpc-30p-1mm 1 2 3 4 5 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 31 32 rxec- a4 a7 lva1p a8 a1 lvb3m lvb2p lvbckm rxo1+ lvb3p b0 lva2m lva1m a[0..9] 4 lva0p a3 lva3p a5 lva3m lva2p b9 lva0p lvb2p rxe3- lva3p lva3m vlcd 2 lva2m lvb0m lvackp b[0..9] 4 rxo0+ rxo2+ lvackm lvbckp rxe3+ lva3m lvbckm b8 vlcd rxoc+ lvb3p lvb0p lvackm lva0m lva3m lvb3m lva2p b3 a[0..9] rxoc- lvackp b4 lvb0m a0 a6 rxo3- lva0p http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 33 6.2 power board http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 34 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 35 7. pcb layout 7.1 main board http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 36 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 37 7.2 power board http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 38 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 39 7.3 key board http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 40 8. maintainability 8.1 equipments and tools requirement 1. voltage meter 2. oscilloscope 3. pattern generator 4. lcd color analyzer 5. service manual 6. user manual http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 41 8.2 trouble shooting no power measure u701 pin2= 3.3v u702 pin2= 1.8v x401 oscillating waveform is normal reset signal is normal replace u401 measure cn701 pin9/10= 5v check u701, u702, d704 check x401, c427, c428 check power section ok ok ok ng ng ng ok check r421, r422 ng replace u402 ng http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 42 check the voltage of c904 check f901, db901, c904, ic901 check ic902, ic903 etc 1.check r903, r904, d902, ic901 etc 2.check zd901, q902, d903 etc ok ng check power supply for the pin6 of ic901 ~dc13v lower hopping http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 43 no video, led orange hs/vs of input is normal measure u701 pin2= 3.3v u702 pin2= 1.8v x401 oscillating waveform is normal check u701, u702, d704 ok ng ng if voltage of u403 pin5/6 is normal check signal cable, d409, d408 check x401, c427, c428 replace u403 ok ok ok ng replace u401 replace u402 ng ng http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 44 no video, led green measure on/off voltage of cn701 pin2 if is normal replace u401 checkq201/q202 short pin2 and pin3 of q203 if the picture is normal replace ic201etc check zd201/l201/pt201/lamp etc ng ng ok ok ok http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 45 white screen check r725 whether there is a voltage of 3.3v, when the power is on if q704, q706 is broken or cn101 abnormally soldered replace q704, q706 or re-solder cn101 replace panel or fpc cable replace u401 check x401, c427, c428 ng ng x401 oscillating waveform is normal ok ok ng ok http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 46 video abnormal if u401 output voltage is normal (test pins of cn101 directly) if u401 output voltage is normal when disconnect fpc cable replace panel or fpc cable replace u401 ng ng ok ok http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 47 osd is unstable or not working ng if pin1 of ic201 has saw tooth wave no backlight connect pin15 of ic201 to the ground if the picture is normal check c207 and ic201 if q206/q207 waveforms are normal check zd201/ic201 etc replace q206/q207 check c209, flyback circuit and lamp ok ng ng ok ok ng http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 48 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 49 9. white balance, luminance adjustment approximately 2 hours should be allowed for warm up before proceeding white-balance adjustment. before started adjust white balance, please setting the chroma-7120 mem. channel 3 to 6500 0 k colors, mem. channel 4 to 9300 0 k colors, mem. channel 9 to 5700 0 k (our 9300 0 k parameter is x=28328, y=29728, y = 175 20 cd/m 2 , 6500 0 k parameter is x =31328, y=32928, y = 180 20 cd/m 2 , and 5700 0 k parameter is x = 328 28, y = 344 28, y = 180 20 cd/m 2 ) how to setting mem.channel you can reference to chroma 7120 user guide or simple use ? sc? key and ? next? key to modify xyy value and use ?id? key to modify the text description following is the procedure to do white-balance adjust. press menu and auto-adjust button during press po wer button will activate the factory mode, gain adjustment: move cursor to ?-factory setting-? and press menu key to enter this sub-menu. move cursor to ? factory? and press menu key. move cursor to ? auto level? and press menu key to adjust gain and offset automatically; a. adjust srgb (6500 0 k) color-temperature 1. switch the chroma-7120 to rgb-mode (with press ?mode? button) 2. switch the mem.channel to channel 3 (with up or down arrow on chroma 7120) 3.the lcd-indicator on chroma 7120 will show x = 313 28, y = 329 28, y = 180 20 cd/m 2 4. adjust the red on osd window until chroma 7120 indicator reached the value r=100 5. adjust the green on osd, until chroma 7120 indicator reached g=100 6. adjust the blue on osd, until chroma 7120 indicator reached b=100 7. repeat above procedure (item 5,6,7) until ch roma 7120 rgb value meet the tolerance =1002 b. adjust color1 (9300 0 k) color-temperature 8. switch the chroma-7120 to rgb-mode (with press ?mode? button) 9. switch the mem.channel to channel 4 (with up or down arrow on chroma 7120) 10. the lcd-indicator on chroma 7120 will show x = 283 28, y = 297 28, y = 175 20 cd/m 2 11. adjust the red on osd window until chroma 7120 indicator reached the value r=100 12. adjust the green on osd, until chroma 7120 indicator reached g=100 13. adjust the blue on osd, until chroma 7120 indicator reached b=100 14. repeat above procedure (item 5,6,7) until chroma 7120 rgb value meet the tolerance =1002 c. adjust color2 (5700 0 k) color-temperature 15. switch the chroma-7120 to rgb-mode (with press ?mode? button) 16. switch the mem.channel to channel 9 (with up or down arrow on chroma 7120) 17. the lcd-indicator on chroma 7120 will show x = 328 28, y = 344 28, y = 180 20 cd/m 2 18. adjust the red on osd window until chroma 7120 indicator reached the value r=100 19. adjust the green on osd, until chroma 7120 indicator reached g=100 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 50 20. adjust the blue on osd, until chroma 7120 indicator reached b=100 21. repeat above procedure (item 5,6,7) until chroma 7120 rgb value meet the tolerance =1002 22. move cursor to ? exit/save? sub-menu and press menu key to save adjust value and exit. turn the power-button off to on to quit from factory mode. max brightness measurement: a. switch to the full white pattern, in user mode main menu: 1. set 17" lcd color monitor dell E177FPC 51 10. isp instruction configure and procedure it is a windows-based program, which cannot be run in ms-dos. system and equipment requirements (1). an i486 (or above) personal comp uter or computer or compatible. (2). microsoft operation system window 95/98/2000/xp. (3). isp tool: isp board/printer cable/vga cable as shown in fig.1 fig.1 (4). isp software checklist (5). update the firmware step 1: double click the isp_tool v3.772.exe icon and click connect, bring up fig.2 fig.2 connect to pc lpt link to dell vga connector http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 52 step 2: click ok and click read, select program bin file, bring up fig.3 fig.3 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 53 step3: click open and ok, bring up fig.4 and fig.5 fig.4 fig.5 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 54 step 4: click auto and run, bring up fig.6 fig.6 step 5: when appear verify ok, writer finished as shown fig.7 fig.7 http://www..net/ datasheet pdf - http://www..net/ 17" lcd color monitor dell E177FPC 55 11. check list 1) after replacing lcd main board and panel, check if white-balance is within the specs, then re-writing ddc is necessary. the white-balance value for each common color temperature: 9300 parameter is x=28328, y=29728, y = 180 10 cd/m 2 , 6500 parameter is x =31328, y=32928, y = 180 10 cd/m 2 , 5700 parameter is x = 328 28, y = 344 28, y = 180 10 cd/m 2 ) the color temperature value above must be up to the sit uation of x |