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1. 9 8 3 Key 42 4 Input Output Specification 16 9 43 4 1 Input Signal 16 9 1 Equipments and Tools Requirement 43 4 2 Factory Preset Display 17 9 2 Trouble 44 10 White Balance Luminance adjustment 50 11 ISP Instr C HOD l pesca io 12 Monitor Exploded View 55 1 BOM LIS be 56 14 Different Parts 151 66 SAFETY NOTICE ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES CAUTION USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING 17 LCD Color Monitor Dell E178WFPC Revision List Revision Release Date Date Revise Revise history TPV TP mode T77GMRHKPWDLNN Jun 18 2007 Initial Release m 17 LCD Color Monitor Dell E178WFPC Important Safety Notice Proper service and repair is important to the safe reliable operation of all AOC Company Equipment The service procedures r
2. c e Program verify Mstar semiconductor Fig 2 51 17 LCD Color Monitor Dell E178WFPC Step 2 Click OK and click Read select program Bin file bring up Fig 3 ISP Wtility 7712 uet al Program service E17 Sw EL OW FPC ISPAE File Status Start Addr 0500000 Unused Bytes 000 C OxFF End Addr 0x3FFFF Checksum Elapse E1T 8WFPC Er E3 mr a HAIE Ae LN ACTES DELL 2 101 2007 a Binary File Fig 3 EZ 52 17 LCD Color Monitor Dell E178WFPC Step3 Click open and OK bring up Fig 4 and Fig 5 ISP 93 T T 2 Ns 27 IE Dor Blank Program verity Era config Connect Dis Con Unused Bytes Start Addr 00 C OxFF End Addr oxi FFFF Checksum Elapsed Time Flash Status 80 Dialog Fig 4 DT service manual sm FRC 444 E17 5 File Status Start Addr 000000 End Addr 0x3FFFF Unused Bytes 0x00 C OxFF Checksum 0x44F1 Elapsed Time Fig 5 53 17 LCD Color Monitor Dell E178WFPC Step 4 Click Auto an
3. C224 0 0b1uF 227 0 0P1uF 0 001uF F 070516 0 1uF 16V TPV Top Victory Electronics Co Ltd itle SCALAR ize Document Number Rev e G2659 1 DEL X 1 070530 ate Monday June 04 2007 Sheet 2 of 5 17 LCD Color Monitor PATO 2 PA O 9 gt PAO LVA3P 1 LVA3M PA4 LVA2P PAS LVA2M PA6 LVA1P LVA1M LVAOP PA9 LVAOM 2 PB 0 9 gt LVBCKM R303 4K7 1 16W 2006 11 7 Add pull up 4K7 to MVCC PPWR_ON 2 gt 100K 1 16W PANEL_VCC R302 330R 1 8W 5 AO3401 C302 0 1uF 16V PAO PA1 PB2 PB3 PA4 PAS PBO PB1 PB2 PB3 PB4 PBS PB6 PB7 PB8 PB9 1 G AO3401L LVA3P LVA3M LVBCKP LVBCKM LVA2P LVA2M LVA1P LVA1M LVAOP LVAOM LVB3P LVB3M LVBCKP LVBCKM LVB2P LVB2M LVB1P LVB1M LVBOP LVBOM 3D 2 PANEL_VCC CN301 CONN C303 T 100uF 16V 32 Dell E178WFPC TPV Top Victory Electronics Co Ltd OUTPUT itle ize Document Number G2659 1 DEL X 1 070530 Date Monday June 04 2007 Sheet 3 of 17 LCD Color Monitor VCC3 3 R405 12K 1 16W BKLT VBRI gt gt adj_BACKLIGHT 2 VCC3 3 VCC3 3 R401 R403 10K 1 16W BKLT EN BACKLIGHT 2 33 Dell E178WFPC ais VCC33 BAT54C IF 10mA VF 0 4V IF 10mA VF 0 855V drop voltage too
4. 6 The LCD indicator on Chroma 7120 will show x 283 30 y 297 30 c Adjust Color2 5700 K color temperature 7 Switch the Chroma 7120 to RGB mode with press MODE button 8 Switch the MEM channel to Channel 3 with up or down arrow on Chroma 7120 9 The LCD indicator on Chroma 7120 will show x 328 30 y 344 30 10 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 gt 230 cd m Test conditions a Switch to the full white pattern in user mode main menu 1 Set lt Color Settings gt Red Green and Blue to the max 2 Set lt Brightness gt Brightness Contrast to the max b The Minimum brightness is lt 40 of Max luminance max luminance max contrast max brightness Test conditions Set lt Brightness gt Brightness Contrast to the min 50 17 LCD Color Monitor Dell E178WFPC 11 ISP Instruction Configure and procedure It is wndows based program which cannot be run in MS DOS System and equipment requirements 1 An 1486 or above personal computer 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 Tool va TTZ 5 Update the firmware Step 1 Double click the ISP_ Tool v3 772 exe
5. 45 PB4 LVB2P 46 PB5 LVB2M 47 PB6 LVB1P 48 PB7 AVDDO 24 REXT 49 R204 5960 1716W PB9 i TSUM16AWR lt EDID_WP 3 VCC3 3 REFP VCC3 3 C20 Q406 16V 2N3904S RTK PS REFM CMVCC VCC3 3 R414 415 9 R205 C218 20 R232 10K 1 16W 10K 1 16W AUF 16V 10K 1 16W 0 1uF 16V GPIO_P15 PWMO 22 u 21 ives PWNGIGPIO P24 22 R230 A MOOR 1 16W lt lt PANEL_ID iun CE VDD SDO R210 2 5 22 E 9 on arco 6K8 1 16W 19 esse WP SCK SCK PWM1 GPIO_P25 adj BACKLIGHT 4 TOR AM W 4 215 24 SOI R211 10 1 16W 070522 R212 LED ORANGE i 9 SST25LF020A 33 4C SAE R207 100R ATEN A Ee R21 100R 1 16W KEY1 Q203 6208 OHM 1 16W 5 oe R218 1008 1 16W KEY2 219 PMBS3906 0 1uF 16V R216 LED GRN BLUE 54 6208 OHM 1 16W 5 CMVCG RST 60 R217 AKT 1 16 R219 P06 61 R218 4 7 1 16W TOUS AGW E a gt gt Volumett 4 R201 53 R22 100R 1 16W POWER TEE C221 0805 1 16W 221 R223 YOR 1M6W x201 222 14 318MHz gt XOUT 33pF GPIO_P10 I2C_MCL H ER TOOR TTEN So 3 GPIO P11 12C NAA SSDET CABLE 1 31 MODE 1 222 556 R226 R227 10K 4 6W 10K 1 16W VCC3 3 R228 R229 3 9KO 1 16W 3 9 1 16W 1 POWER KEY 2 KEY1 KEY LEFT R233 1K 116W 3 KEY RIGHT R234 2KO 1 16W 4 KEY2 6535 1 16W 31 3 12 LED ORANGE LED GRN BLUH
6. B On Screen Display OSD Horizontal Position Wertical Position OSD Hold Time OSD Lock 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 Language sets the OSD to display in one of five languages English Espa ol Francais Deutsch and Japanese English Espa ol Fran ais Deutsch NOTE The language chosen affects only the language of the OSD It has no effect on any software running on the computer Factory Reset returns the settings to the factory preset values for the selected group of functions 12 17 LCD Color Monitor Dell E178WFPC Reset to Factory Setting Exit Position Settings Only Color Settings Only All Settings Enable LCD Conditioning DDCICI Enable Disable Exit is used to exit out of Factory Reset menu For All settings all user adjustable settings are reset at one time except Language settings IR This feature will help reduce minor cases of image retention Enable LCD Conditioning an image appears to be stuck on the monitor select LCD Conditioning to help eliminate any image retention Using the LCD Conditioning feature may take several hours Severe cases of image retention are known as burn in the LCD Conditioning feature does not remove burn in NOTE Us
7. 17 LCD Color Monitor Dell E178WFPC 1 Monitor Specifications Screen type Active matrix TFT LCD Panel Type LM171WX3 TLA1 KR ZBD LPL 17 inches 17 inch diagonal viewable image size LCD Panel Pixel pitch 0 255 mm x 0 255 mm Viewable angle Viewing angle 160 vertical typ 150 horizontal typ 8 ms typical Black to White Analog RGB 0 7 Volts 5 75 ohm input impedance Separate Sync H V TTL Input H Frequency 30 kHz to 83 kHz automatic V Frequency 50 Hz to 75 Hz Display Colors 16 7M Dot Clock 135MHz Max Max Resolution 1440 x 900 at 60 Hz 15 pin D subminiature blue connector Horizontal 367 2 mm 14 46 inches Maximum Screen Size Vertical 229 5 mm 9 04 inches 100 to 240 50 60 Hz 0 6A 100V amp 0 35A 240V Max Operating Temp 5 to 35 Operating Humidity 10 to 80 Storage Temp 0 to 60 C Environmental Considerations Weight with packaging 4 85 kg 10 685 Ib Monitor Stand and Head 3 60 kg 7 93 Ib Monitor Flat panel only VESA Mode 2 70 kg 5 95 Ib 17 LCD Color Monitor Dell El78WFPC 2 LCD Monitor Description The LCD monitor will contain a main board power board key 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 Monitor Block Diagram each voltage CCFL Drive Flat Panel and CCFL backlight RS232 C
8. 3 2 5 5 Pog s R962 L _ 8935 3C 3 _ _ C916 7 O MUTE VOL ON OFF DIM 5V 5V GND GND O 605 J605 606 838 R855 856 Er 0802 sg _ C907 T Je C906 lt 0900 2 8938 y 5 CI 2 sO Ei C604 CI C605 C607 C606 40 J903 J902 Dell E178WFPC CN802 F901 NR901 VAR901 mo C903 L901 4901 L902 4909 O CN901 _ m C901 0902 C608 MIN CN602 Dell E178WFPC 17 LCD Color Monitor 10 061 10982 8082 809r 109 092 voor 09r 80901 mu LO6YN 600 3504 30 ONILVY ONY JAVS ANO 39 1434 343 30 ASIA 15 9 NOILO310Nd Q3nNIINO2 804 NOILNVO J602 4609 0601 20984 7082 909 609 0 6 Y S ar MH Vd C921 5060 ren ELET 2063 over 061 5162 JVAOSC Wr 806 soar 908r rier Wer 1081 clar 20889 JOVLIOA NOILAVO NZ 39V110A NOILNVO 10882 71562545 1 2 41 17 LCD Color Monitor Dell E178WFPC 8 3 Key Board 42 17 LCD Color Monitor Dell E1789WFPC 9 Maint
9. 4W 0 001uF 5V DIM O ON OFF O L904 C918 680uF 25V C940 C939 1000uF 16V 1000uH R941 R945 1K 1 4 1 4W Boy C922 ATOuF 25V 20902 C930 RLZ13B R946 0 1uF 1 4W R943 Er 1K 1 8W L Q903 ZD901 3904 NC F903 oN 0 0 0 16V C91 470uF 16V M R940 L 33K 1 10W 150R 1 8W ZD921 3B 1 1 10W LL4148WP R942 1 10W 1 R930 CN902 2 43K 1 1 10W CONNECTOR G2545 1 2 X 2 070524 Document Number Date Thursday May 24 2007 Sheet 17 LCD Color Monitor 12V ON OFF O DIMO C839 T801 1000pF POWER XFMR 6 7 R855 D805 er 33 1 4W LL4148WP F801 3 2 ccce 2 4 801 15pF 3KV ORO5 1 4W C802 R804 Q801 470uF 25V C824 R856 1 2 8 100 1 8W 53904 0810 0 1uF 33 1 4W NC Q802 AM9945N T1 PF 1 8 Q808 5 D PDTA144WK 2 7 C838 Q805 D 1000pF PDTC144WK R839 3 6 Q804 4 5 PMBS3906 G D C807 C825 0 1uF 25V 0 1uF 25V Q811 3904 R811 47 1 10W 0811 NC 0813 LL4148WP Es 5 Q812 DICE PMBS3906 4 0810 1 R850 RK7002 22R 1 8W R813 R827 1K 1K 1 10W 1 N N Q806 R853 PMBS3904 68K 1 10W 12 NC D817 LL4148WP R841 68K 1 1 10W C842 0 01uF R829 R851 gt R802 22R 1 8W 91K 1 10W 5 4K t 10W R825 228 1 8W R837 47K 1 10W R830 2892 R832
10. Dell E178WFPC 14 Different Parts List Location Part No Description 70560734170 ______ MAIN FRAME 55 17 CBPC7HMRDLQ1 MANBOARD 00040404 PWPC721HD1 POWER BOARD 044G3231 15571 EVA WASHER 25266025 13114 INSULATE SHEET 66
11. RST CHIPR 75 OHM 5 1 16W RST CHIPR 330 OHM 5 1 8W 58 17 LCD Color Monitor Dell E178WFPC C229 CHIP 0 1UF 50V X7R C228 06560402104 12 CHIP 0 1UF 50V X7R C219 CHIP 0 1UF 50V X7R C218 CHIP 0 1UF 50V X7R C212 CHIP 0 1UF 50V X7R C211 CHIP 0 1UF 50V X7R C207 CHIP 0 1UF 50V X7R C203 CHIP 0 1UF 50V X7R C201 CHIP 0 1UF 50V X7R C112 CHIP 0 1UF 50V X7R C102 CHIP 22PF 50V NPO C103 CHIP 22PF 50V NPO C414 CAP CER 0 22UF 20 80 C221 33PF 50 50V NPO C222 33PF 50 50V NPO C101 CHIP 0 047UF 16V X7R 1000PF 10 50V X7R 1000PF 10 50V X7R 1000PF 10 X7R 1000PF 10 X7R 1000PF 10 50V X7R 59 17 LCD Color Monitor Dell E178WFPC 20106 093G 39 34 UDZS5 6B 20105 093G 39 34 UDZS5 6B 20104 093G 39 34 UDZS5 6B 1 ZD103 UDZS5 6B ZD102 UDZS5 6B 70101 UDZS5 6B MAIN BOARD PCB SMALL TAPE SW DOME SWITCH 4PCS ARRAY CN1 FFC CABLE LEDO LED GPTD1210YGC3 HB GUANGPU KEY BOARD PCB POWER BOARD CN801 CONNECTOR ecua 15PF 5 CC45SL 60 17 LCD Color Monitor Dell E178WFPC 0905 09363006 1 1 31DQ06FC3 NIHON INTER 902 09568014 60655 WIRE HARNESS 090 STP9NK65ZFP HS3 HEAT SINK D906 DIODE MBRF10150CT 10A 150V ITO 220 Sore HS2 HEAT SINK IC801 IC SMPS KA7500CDTF SOIC 16 IC901 IC LD7552BPS SOP 8 Q801 PMBS3904 PHILIPS SMT 04 Q806 PMBS3904 PHILIPS SMT 04 0811 PMBS3904 PHILIPS SMT 04 Q903 PMBS3904 PHILIPS SMT 04 PMBS3906 PHILIPS SMT 06 PMBS3906 PHILIPS
12. SMT 06 RST CHIPR 0 OHM 5 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 1 KOHM 1 1 10W RST CHIPR 10 KOHM 1 1 10W RST CHIPR 10 KOHM 1 1 10W RST CHIPR 10 KOHM 1 1 10W RST CHIPR 10 KOHM 1 1 10W RST CHIPR 10 KOHM 1 1 10W RST CHIPR 10 KOHM 1 1 10W 61 17 LCD Color Monitor Dell E178WFPC R813 RST CHIP 1K 1 10W 5 R862 06160603105 RST 1 MOHM 5 1 10W R835 RST CHIPR 1 MOHM 5 1 10W R803 RST CHIPR 10 MOHM 5 1 10W R930 RST CHIPR 2 43 KOHM 1 1 10W R940 RST CHIPR 33 KOHM 1 1 10W R927 RST CHIPR 3 6 KOHM 1 1 10W R811 RST CHIPR 4 7KOHM 5 1 40W R851 RST CHIPR 5 1 KOHM 1 1 10W R841 RST CHIPR 68 KOHM 1 1 10W R853 RST CHIPR 68 KOHM 5 1 10W R802 RST CHIP 91K 1 10W 196 R831 RST CHIPR 1KOHM 1 1 8W R915 RST CHIPR 100KOHM 1 1 8W R804 RST CHIPR 100 OHM 4 596 1 8W R826 RST CHIPR 1KOHM 5 1 8W RST CHIPR 1KOHM 5 1 8W RST CHIPR 1KOHM 5 1 8W RST CHIPR 150 OHM 5 1 8W RST CHIPR 47 KOHM 5 1 8W RST CHIPR 51 KOHM 1 1 8W RST CHIPR 0 OHM 5 1 4W RST CHIPR 0 OHM 5 1 4W RST CHIPR 0 OHM 5 1 4W RST CHIPR 0 OHM 5 1 4W RST CHIPR 1 KOHM 5 1 4W RST CHIPR 1 KOHM 5 1 4W RST CHIPR 1 KOHM 4 596 1 4W 62 17 LCD Color Monitor
13. much BAT54C VCC1 8 0106 0702 C412 100uF 16V 0 1uF 16V C402 C413100uF 16V 0 1uF 16V 12 28 change to LDO due to internal ripple too big CMVCC MVCC VCC3 3 C408 100uF 16V C407 100uF 16V TPV Top Victory Electronics Co Ltd itle Power Size Document Number G2659 1 DEL X 1 070530 Date Monday June 04 2007 Sheet 4 of 17 LCD Color Monitor Dell E178WFPC 7 2 Power Board BD901 KBP208G gx R908 C907 100uF 450V 100K 2W C938 1500pF 1KV D900 107 N o o N O C905 D901 R909 0 1 FR103 5 1 1 4W C902 C901 C908 0 001uF 250V 0 001uF 250V 1 4W 22uF 50V NC i R907 0903 LL4148wP 0901 2SK2645 54MR RT NC CS COMP VCC GND OUT R915 LD7552BPS Ig 100K 1 8 FB901 BEAD N 220 1 4W NN NZ R914 0 47 2W C928 C909 TOREM 0 001uF 470pF 25V C903 AN XD 0 470 2 GND1 GND 1 4W 680K 1 4W 680K 4 AN VAR901 Varistor N C FGL HS2 HEAT SINK D906 HS3 HEAT SINK Q901 F904 FUSE NTC t N i CN901 SOCKET 1 0 1 4W R918 1 0 1 4W R919 1 0 1 4W R920 IC 904 KIA431A AT P C921 3300PF 250V d 34 R925 1K 1 8W R926 1K 1 10W 196 T901 4 9 R935 100 R961 100 14 10 A R962 100 1 4W C912 0 001uF 1 4W 91 680uF 25V C929 31DQ06FC 1
14. 1 1 00 14 32530 0 20 1 HIRO 55 17 LCD Color Monitor Dell E178WFPC 13 BOM List T77GMRHKPWDLNN Location Part Number Description 023G3178700 3A LOGO 026G 800700 6A S N LABEL PAPER BOARD CORNER PAPER CORNER PAPER SMALL TAPE SMALL TAPE SHIELD WIRE 20898 SIGNAL CABLE E089A POWER CORD Screw SCREW M3X6 Sore Sore 70560734168 MAIN FRAME ASS Y 17 Lewes i sm stan moon Pe TINTA ecra funes CHIPR 3 3 OHM 5 2W 100UF 20 16V 105 C 100UF 20 16V 105 C 100UF 20 16V 105 C 100UF 20 16V 105 C 100UF 20 16V 105 C 96 17 LCD Color Monitor Dell E178WFPC C202 067G305V479 3P 4 7UF 16V 105 C C209 067G305V479 3P 4 7UF 16V 105 C CN101 0886 35315F D SUB 15PIN 201 CRYSTAL 14 318MHZHC 49US 1401 TSUM16AWR LF 1 MSTAR U702 IC AIC1117A 18PYTR R SOT223 0701 AP1117E33LA U703 M24C02 WMN6TP U203 SST25LF020A 33 4C SAE Q403 PMBS3904 PHILIPS SMT 04 Q202 PMBS3906 PHILIPS SMT 06 Q203 PMBS3906 PHILIPS SMT 06 Q301 PMBS3906 PHILIPS SMT 06 Q406 KEC 2N3904S RTK PS Q302 A03401 SOT23 BY AOS A1 R101 RST CHIPR 0 OHM 5 1 16W RST CHIPR 0 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OH
15. 17 LCD Color Monitor Dell E178WFPC Service Service ENERGY STAR Service Manua Horizontal Frequency 30 kHz to 83 kHz Table of Contents Description Page Description Page Table Of CORBIS DIS ear 1 5 2 Electrical Block Diagram 23 Revision 5 2 6 Mechanical 25 Important Safety 3 7 Schematic 30 1 Monitor 4 7 1 30 2 LCD Monitor 5 7 2 Power 34 3 Operation 6 8 4 202 0 77 7 7211 00 10 l 36 3 1 General 5 8 1 Main 6 3 2 Control 2 7 8 2 Power 39 3 3 Adjusting the
16. Dell E178WFPC R946 RST CHIPR 1 KOHM 5 1 4W R912 061G1206221 RST CHIPR 220 OHM 5 1 4W R904 300 1 8W R933 300 KOHM 1 8W R932 300 KOHM 1 8W R855 RST CHIPR 33 OHM 5 1 4W R856 RST CHIPR 33 OHM 5 1 4W R909 RST CHIPR 5 1 OHM 5 1 4W R900 RST CHIPR 680 5 1 4W R901 RST CHIPR 680 KOHM 5 1 4W R902 RST CHIPR 680 KOHM 5 1 4W C842 0 01UF 10 50V X7R C807 CHIP 0 1UF 25V X7R C821 CHIP 0 1UF 25V X7R C825 CHIP 0 1UF 25V X7R C834 CHIP 0 1UF 25V X7R 63 17 LCD Color Monitor Dell E178WFPC D812 LL4148WP 0807 0936 6444 LL4148WP D806 LL4148WP D805 LL4148WP D813 LL4148WP ZD801 RLZ6 8B LLDS ZD906 RLZ22B LLDS ZD922 RLZ5 1B LLDS ZD921 RLZ 13B LLDS ZD902 RLZ 13B LLDS 70905 RLZ18B LLDS CN901 EYELET T901 1 5MM RIVET IC904 IC AZ431AZ AE1 TO 92 BY AAC C938 1 5NF 1KV Z5F 10 C906 1 5NF 1KV Z5F 10 ricas 12 2 smi omone eem timos recoveren mamo 7 7 Emo QMGme 1 o uns War fee oao cm 64 17 LCD Color Monitor Dell E178WFPC _____ Q45G 88606 8 R PE BAG FOR BASE SD ose BIO TAPEFORDELLCARTON ET NEN NEN 27061700700 CD MANUAL Q85G0051 1 INVERTER SHIELD 65 17 LCD Color Monitor
17. M 5 1 16 RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16W RST CHIPR 100 OHM 5 1 16 RST CHIPR 100 OHM 5 1 16 RST CHIPR 1 KOHM 5 1 16W RST CHIPR 1 KOHM 5 1 16W RST CHIPR 1 KOHM 5 1 16W RST 10 KOHM 5 1 16W RST CHIPR 10 KOHM 5 1 16W RST CHIPR 10 KOHM 5 1 16W RST CHIPR 10 KOHM 5 1 16W 57 17 LCD Color Monitor Dell E178WFPC R301 RST CHIPR 10 KOHM 5 1 16W R232 06160402103 RST 10 KOHM 5 1 16W R227 RST CHIPR 10 KOHM 5 1 16W R226 RST CHIPR 10 KOHM 5 1 16W R223 RST CHIPR 10 KOHM 5 1 16W R211 RST CHIPR 10 KOHM 5 1 16W R210 RST CHIPR 10 KOHM 5 1 16W R209 RST CHIPR 10 KOHM 5 1 16W R205 RST CHIPR 10 KOHM 5 1 16W R137 RST CHIPR 10 KOHM 5 1 16W R219 RST CHIPR 100 KOHM 5 1 16W R304 RST CHIPR 100 KOHM 5 1 16W R405 RST CHIPR 12KOHM 5 1 16W R234 RST CHIP 2K 1 16W 5 R105 RST CHIPR 2 2 KOHM 5 1 16W R106 RST CHIPR 2 2 5 1 16 RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 4 7 KOHM 5 1 16 RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 4 7 KOHM 5 1 16W RST CHIPR 75 OHM 5 1 16W RST CHIPR 75 OHM 5 1 16W
18. R807 NC 1uF 25V 10K 1 10W 10K 1 10W gt R818 D806 1K 1 10W 1 LL4148WP D812 LL4148WP R823 0 1 10W C821 0 1uF 25V R810 R865 Q809 51K 1 8 5 NC RK7002 R803 gt R826 R808 10M 1 10W C846 R820 C820 1K 1 8W R824 2 1K 1110W 1 NC 10K 1 10W R863 R831 220pF 10K 1 10W 1K 1 8W 1K 1 10W 1 C834 R835 C817 C845 R862 0 1uF 25V 1M 1 10W 5 NC 2 2uF 16V 1M 1 10W 5 D814 LL4148WP 35 Dell E178WFPC CN801 2 R817 R821 10K 1 10W 1K 1 10W 1 CONN C819 0 0022uF 3 1 0801 R801 BAV99 1K 1 10W 1 2 1 R828 R822 10K 1 10W 1K 1 10W 1 CN802 CONN C823 0 0022uF R814 1K 1 10W 1 mg 2545 1 2 2 070524 ize Document Number Custom 1 0 Thursday May 24 2007 Sheet 2 17 LCD Color Monitor Dell E178WFPC 17 LCD Color Monitor 20104 1402 0 R137 20103 37 17 LCD Color Monitor Dell E1 78WFPC m oF 58 E 5 rs 0409 O A LL gt L ooo E MM COW 38 17 LCD Color Monitor e P 88 55285 E d ERU x 8 m Z lz la sa 11 2 0 8 8 80 e LUI 001 iab iLi 28 5 304004 58858 88 sy Em Bn U D ge E M il 52 5 ch 4 F903 mo
19. UDZS5 6B 00255 68 a n el lt lt O O 5 FB101 gt gt EL 100R 1 16W C110 p402 p403 p404 CMVCC BEAD ee 22DSUBR 2 Q R116 5pF 50V 75R 1 16W C112 0 1uF 16V 117 1008 1 16W C113 0 047uF D gt DSUBR 2 GND POWER DGND CMVCC DSUB_5V VCC3 3 BAV70 D105 R137 1 16W R120 R121 VGA_PLUG lt DET_CABLE 2 0 22uF16V 4K7 1 16W 1 16W R413 10K 1 16W TPV Top Victory Electronics Co Ltd INPUT Size Document Number G2659 1 DEL X 1 070530 Monday June 04 2007 Sheet 1 30 17 LCD Color Monitor Dell E178WFPC CN201 VDDC AVDD VDDP VDDP VCC3 3 203 AVDD L 5 Sio 1 a 52 8 VCTRL s 202 203 C207 lt 33 ee 0 1uF 16V 16V 1 DSUB_R RINOP a LVA3M gt 1 DSUB R RINOM 2 L 1 DSUB_G 9 g GINOP 1 DSUB G GINOM LVA2P 1 DSUB SO SOGINO LVA2M 8 37 PA6 1 DSUB BINOP LVA1P 1 DSUB_B BINOM 38 39 PAS VCC1 8 VDDC 1 DSUB_H HSYNCO LVAOP 40 PA9 1 DSUB_V VSYNCO LVAOM 1 DDC1_SD DDCA_SDA RS232_TX 4 VCC18 1 DDC1_SC SCL rs232 211 c209 AUF 16 C212 9 Cara 4 7uF16 0 1uF 16V LvBaP 41 Pon lt PB 0 9 3 42 PB1 LVB3M L 43 PB2 LVBCKP 44 LVBCKM
20. ainability 9 1 Equipments and Tools Requirement 1 Voltage meter 2 Oscilloscope 3 Pattern Generator 4 LCD Color Analyzer 5 Service Manual 6 User Manual 43 17 LCD Color Monitor 9 2 Trouble shooting 9 2 1 Main Board No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100 240 is normal Measure 0701 PIN2 3 3V 0702 PIN2 1 8V X201 oscillate waveforms are normal Replace U401 44 Reinsert or check the Adapter Inverter section Replace X201 Dell E178WFPC Check CN401 or replace U701 U702 17 LCD Color Monitor Dell E1789WFPC No picture LED orange Measure 0701 PIN2 3 3V 0702 PIN2 1 8V Replace 0701 0702 X201 oscillate waveform is normal Replace X201 Whether the reset of the Scalar IC is useful Check C407 C227 R219 Check HS VS from CN101 is normal Check Correspondent OK component Replace 401 45 17 LCD Color Monitor White screen Measure Q301 base is low level Check Q302 is broken or CN301 solder Check Correspondent component OK Replace PANEL 46 Dell E178WFPC X201 oscillate waveform is normal OK Replace X201 Check reset circuit of 0401 is normal NG Check Correspondent component OK Replace 0401 17 LCD Color Monitor Dell E1789WFPC 9 2 2 Power Inverter Board No power Check CN902 pin3 4 5V NG Check AC lin
21. at 240 V lt 60A peak at 240 VAC and cold starting Peak surge current lt 30A peak at 120VAC and cold starting No advance effects no loss of information or defect Power line surge with a maximum of 1 half wave missing per second 17 17 LCD Color Monitor Dell E178WFPC 4 4 Panel Specification HSD170MGW1 B00 ZBD NJ HSD 4 4 1 Display Characteristics Active Screen Size 17 1 inches 43 3019cm diagonal Aspect ratio 16 10 Outline Dimension 389 2 H x254 5 V x11 5 D mm Typ Viewing Angle CR gt 10 R L 160 Typ U D 160 Typ Power Consumption Total 12 92 Watt Typ 2 6 Watt VLCD 10 32 Watt 250cd Lamp 8mA Surface Treatment Hard coating 3H Anti glare treatment of the front polarizer 18 17 LCD Color Monitor Dell E178WFEPC 4 4 2 Optical Characteristics The optical characteristics are measured under stable conditions at 25 C Room Temperature 25 2 Vicp 5 0V fV 60Hz Dclk 106 5MHz lLamp 8mA Contrast Ratio Rise Time Response Time Decay Time RED GREEN Color Coordinates CIE 1931 BLUE WHITE Viewing Angle gt 10 x axis right o 0 3 x axis left 180 3 y axis up 90 y axis down 270 6d 70 85 GrayScale 19 22 25 Foros tak ts 19 17 LCD Color Monitor Dell E178WFPC 4 5 Definition of Pixel Defects 4 5 1 Inspection environment conditions Room temperature 20 25 C Humidit
22. d arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure CAUTION The use of optical instruments 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 THEIR 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 electric 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 may damage the electronic circuit C MOS Make certain that treatment person s body 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 lf 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
23. d Run bring up Fig 6 NStar ISP Utility V3 7 7 2 Read File Checksum 0xC444 Exit ISP Erase Device File Area Erase Area 1 Time t Flash Status 80 Fig 6 Step 5 When appear Verify OK writer finished as shown Fig 7 Estar ISP Utility V3 T T 2 2 i Device Read Verity Contig ReConnect Blank Erase Blank Message Blanking Program Blank Read File Program Message Programing Checksum 0x0132 Verify Program Message Exit ISP Verify Erase Device File Area Erase rea Elapsed Time 54 17 LCD Color Monitor 12 Exploded View a T Cz to wanton Um mm A w mw gt hanan smm mna Cw semissem enam mm J m seem Powe ewm iY tree pan meme OESTE ed Ps retin row seers 2 amr 3 Pare wore e Dell E178WFPC Dell E178WFPc Explosion Flowchart TOLERANCE UNLESS OTHERWISE SPECIFIED RANGE OF um arum CARTON JE 3080
24. d to open the on screen display OSD select function icons exit from menus and sub menus and to exit the 1 OSD See Accessing the Menu System MENU Use this button for direct access to the Brightness and Contrast control menu Use these buttons to adjust decrease increase ranges items in the OSD 2 3 NOTE You can activate automatic scroll feature by pressing and holding either or button and buttons 17 LCD Color Monitor Dell E178WFPC Use this button to activate automatic setup and adjustment The following dialog will appear on screen as the monitor self adjusts to the Auto Adjust In Progress current input Auto Adjust 3 Auto 4 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 The green LED indicates the monitor is on and fully functional An amber LED indicates DPMS power save mode Power Button and Indicator Power button turns the monitor on and off 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 a
25. djusts 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 press x button to display the Brightness and Contrast Brightness Contrast Brightness The Brightness function adjusts the luminance of the flat panel adjustment menu Contrast 75 Adjust Brightness first and then adjust Contrast only if further adjustment is 17 LCD Color Monitor 3 3 Adjusting the Picture Icon Menu and Submenus Exit Positioning Horizontal Vertical Image settings Dell E178WFPC 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 Description This is used to exit out of the Main Menu Positioning moves the viewing area around on the monitor screen When making changes to either the Horizontal or Vertical settings no changes occur to the size of the viewing area the image gets shifted based on what you select M
26. e LCD Conditioning only when you experience a problem with image retention Below warning message appears once user select Enable LCD Conditioning This feature will help reduce minor cases of image retention Depending on the degree of image retention the program take some time to run Do you want to continue NOTE Press any button on the monitor to terminate LCD Conditioning at any time LCD Conditioning is currently in progress Press any button on the monitor to terminate LCD Conditioning at any time DDC CI Display Data Channel Command Interface allows you to adjust the monitor parameters brightness color balance etc via software applications on your PC 13 17 LCD Color Monitor Dell E178WFPC Select Disable to disable this feature For best user experience and optimum performance of your monitor keep this feature enabled The function of adjusting display settings using PC applications will be disabled Do you want to disable DDC CI NOTE If user select disable for DDC CI the warning message will appear on screen Then user can select Yes or No according to need Automatic Save With the OSD open if you make an adjustment and then either proceed to another menu or exit the OSD the monitor automatically saves any adjustments you have made If you make an adjustment and then wait for the OSD to disappear the adjustment will also be saved 14 17 LCD Col
27. e allowed for warm up before proceeding White Balance adjustment Before started adjust white balance please setting the Chroma 7120 MEM Channel 3 to 6500 K colors MEM Channel 3 to 9300 colors MEM Channel 3 to 5700 our 9300 parameter is 283 30 y 297 30 6500 parameter is x 313 30 329 30 Y 200 20 and 5700 parameter is x 328 30 344 30 How to setting MEM channel you can reference to Chroma 7120 user guide or simple use SC key and NEXT key to modify x y Y value and use ID key to modify the TEXT description Following is the procedure to do white balance adjust Enter into the factory mode Press MENU and button during press Power 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 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 30 y 329 30 Y 200 20 cd m b Adjust Color1 9300 K color temperature 4 Switch the Chroma 7120 to RGB mode with press MODE button 5 Switch the MEM channel to Channel 3 with up or down arrow on Chroma 7120
28. e volt 110V or 220V NG Check input Check the voltage of C907 NG OK Check bridge rectified circuit and F901 circut Check start voltage for the pin3 of IC901 Check R904 R932 R933 and Change 901 Check the auxiliary voltage is bigger than 10V and smaller than 20V 1 Check IC901 2 Check C909 D901 R909 OVP circuit Check IC901 pin8 PWM wave NG Check IC901 901 Check 0906 1904 20902 922 47 17 LCD Color Monitor Dell E1789WFPC No Backlight Check F801 12V OK Check ON OFF signal OK Check adapter and F801 Check Interface board or main board Check IC801 PIN12 5V OK NG Change on off circuit Check IC801 PIN1 have triangle wave OK NG Change 801 Check ZD801 has the output of square wave at short time OK NG Check Q805 Q806 Check the resonant wave of pin2 amp pind for T801 OK NG Check Q801 Q811 D810 D811 Check the output of T801 Change T801 OK Check connecter amp lamp 48 17 LCD Color Monitor Dell E178WFPC 9 2 3 Keypad Board OSD is unstable or not working Is Key Pad Board connecting normally N Connect Key Pad Board Replace Button Switch Is Button Switch normally Is Key Pad Board normally Replace Key Pad Board Check Main Board 49 17 LCD Color Monitor Dell E178WFPC 10 White balance Luminance adjustment Approximately 2 Hours should b
29. ecommended by AOC and described in this service manual are effective methods of performing service operations Some of these service operations require the use of tools specially designed for the purpose The special tools should be used when and as recommended It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel 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 hazardous consequences of each way Consequently AOC has not undertaken any such broad evaluation Accordingly a servicer 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 modified or altered without written permission from AOC AOC assumes no liability express or implie
30. inimum is O Maximum is 100 Horizontal Vertical Auto Adjust Even though your computer system can recognize your new flat panel monitor on startup the Auto Adjustment function will optimize the display settings for use with your particular setup NOTE In most cases Auto Adjust produces the best image for your configuration you can directly access this function via Auto Adjustment 17 LCD Color Monitor Pixel Clock Phase Color Settings Dell E1 8WFPC hotkey The Phase and Pixel Clock adjustments allow you to more closely adjust your monitor to your preference Select Image Settings in the main OSD to access these settings Use the and buttons to adjust interference Minimum 0 Maximum 100 If satisfactory results are not obtained using the Phase adjustment use the Pixel Clock adjustment and then use Phase again Image Settings Auto Adjust will produce best image Auto Adjust Pixel Clock Phase 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 Adjusts the color temperature and saturation Color Settings Graphics Color settings Mode Graphics Video Color Presets Normal Preset Red Preset Blue Preset User Preset Color Settings adjust the color temperature Color Settings has the following o
31. mp Feedback Over Circuit Voltage PWM ON OFF Protect gt Control IC Control CN902 DIM 24 17 LCD Color Monitor Dell E178WFPC 6 Mechanical Instructions Tools 2 Power screwdrivers 9 5mm L 60mm 1 small cross screwdriver turnbuckle driver Setting Power screwdriver torque A 11 kgF Cm torque B 6 kgF Cm Note Firstly put the monitor on a soft flat and clean surface wear gloves Remove stand 1 Rotate the stand to allow access to the stand release button 2 Press the Stand release button and lift up the Stand and away from the monitor Remove rear cover 1 Remove the 4 screws by torque A 2 Pry the monitor up then find out the hooks position use the tool like the picture or other card to insert into the gap of bezel and rear Cover 25 17 LCD Color Monitor Dell E178WFPC 3 Turn over the monitor as the Fig hold the rear cover and then slightly remove it Remove the small shield Remove the small shield as the arrowhead direction disconnects the keyboard connector and then remove the bezel Remove the shield 1 Remove the screw by Torque B or by manual and remove the small Tem m shield 26 17 LCD Color Monitor Dell E1 8WFPC Remove the two screws by Torque Remove the main frame Remove the 4 screws by manual or torque 3kgF Cm and remove the main frame Install Fix the FFC connector as
32. onnector Power board Main Board s o For white balance Key board Video signal DDC AC IN Host Computer 100 240V adjustment in factory mode 17 LCD Color Monitor Dell E178WFPC 3 Operation instructions 3 1 General Instructions 1 With the menu off press the MENU button to open the OSD system and display the main features menu E178WFP Positioning Image Settings Color Settings OSD Settings Language Factory Reset Resolution 1360 x 768 60 2 Optimum 1440 x 900 60Hz o sene emm ET 2 Press the and buttons to move between the function 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 Press the MENU button once to activate the highlighted function Press to select the desired parameter press menu to enter the slidebar then use the and buttons according to the indicators on the menu to make your changes 4 Press the MENU button once to return to the main menu to select another function or press the MENU button two or three times to exit from the OSD 17 LCD Color Monitor Dell E178WFPC 3 2 Control Buttons Menu selection button Brightness Contrast Down button Auto Adjust Up button Power On Off button with LED indicator The MENU button is use
33. or Monitor Dell E178WFPC OSD Warning Messages A warning message may appear on the screen indicating that the monitor is out of sync Cannot Display This Video Mode 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 for the Horizontal and Vertical frequency ranges addressable by this monitor Recommended mode 1 1440 X 900 60Hz Es NOTE The floating Dell self test Feature Check dialog appears on the screen if the monitor cannot sense a video signal D LL Self TestFeature Check Occasionally no warning message appears but the screen is blank This could also indicate that the monitor is not synchronizing with the computer See Troubleshooting for more information 15 17 Color Monitor Dell E178WFPC 4 Input Output Specification 4 1 Input Signal Connector Connector os L VGA Connector layout 16 17 LCD Color Monitor Dell E178WFPC 4 2 Factory Preset Display Modes Display Mode Horizontal Vertical Sync Polarity Frequency Frequency kHz Hz Horizontal Vertical 25 2 75 0 31 5 7 9 60 3 40 0 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 C 0 6A max at 100V 0 35A max
34. ptions Color Management Color Settings Mode You can choose between a Graphics and a Video mode If your computer is connected to your monitor choose Video Color Presets You can choose different color presets for different viewing modes 10 17 LCD Color Monitor OSD Settings Horizontal Position Vertical Position Dell E1 8WFPC As soon as choose Graphics you can choose Normal Preset Red Preset Blue Preset or User Preset Select Red Preset for a warm color Select Blue Preset for a cool color You can adjust the monitor color using User Preset R G B Normal Preset mean color temperature 6500K Select Blue Preset for a bluish tint This color setting is used for text based applications spreadsheets programming text editors etc Select Red Preset for a reddish tint This color setting is used for color intensive applications photograph image editing multimedia movies etc Select Normal Preset for default color settings This setting is also the SRGB standard default color space User Preset Use the plus and minus buttons to increase or decrease each of the three colors B independently in single digit increments from 0 to 100 There are three video modes Theater Preset Sports Preset and Nature Preset Color Settings Video Color settings Mode Graphics Video Color Presets Theatre Preset Sports Preset Nature Preset Hue 50 Saturation Select Theate
35. r Preset for playing a movie Select Sports Preset for viewing sports Select Nature Preset for general viewing For general picture or web or watch TV choose Nature Preset User can adjust the Hue Tint Saturation based on the preference 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 Each time the OSD opens it displays in the same location on the screen OSD Settings horizontal vertical provides control over this location and buttons move OSD to the left and right and buttons move OSD down and up 11 17 LCD Color Monitor OSD Hold Time OSD Lock Language Factory Reset Dell E1 8WFPC 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 1 20 seconds Controls user access to adjustments When Yes is selected no user adjustments are allowed All buttons except Menu are locked All buttons can be locked or unlocked Press the Menu button for over 15 seconds to unlock the OSD menu
36. rom Is the power key pressed Clear all global flags Are the AUTO and SELECT keys pressed Enter factory mode 9 Save the power key status into EEprom Turn on the LED and set it to green color Scalar initializes 10 11 12 13 14 15 16 17 18 In standby mode Update the lifetime of back light Check the analog port are there any signals coming Does the scalar send out an interrupt request Wake up the scalar Are there any signals coming from analog port Display No connection Check Signal Cable message And go into standby mode after the message disappears Program the scalar to be able to show the coming mode Process the OSD display 19 Read the keyboard Is the power key pressed 22 17 LCD Color Monitor 5 2 Electrical Block Diagram 5 2 1 Main Board Crystal 14 318MHZ 201 Flash Memory SST25LF020A 33 AC SAE U203 OSD Control Interface CN201 Dell E178WFPC LCD Interface CN301 Scalar TSUM16AWR LF 1 Include MCU ADC OSD 0401 R H RXD G DB15_SDA TXD B DB15 SCL D Sub Connector EEPROM M24C02 U703 CN101 23 17 LCD Color Monitor Dell E178WFPC 5 2 2 Inverter and Power Board AC input Bridge Rectifier Jin Transformer Rectifier diodes EMI filter and Filter Start Circuit R904 R932 R933 5V Over PWM Voltage Control Protect 12V ON OFF Output Circuit Transformer MOSFET La
37. the figure Note Make LVDS connector s metal side adown 27 17 LCD Color Monitor Dell E178WFPC HITA ve 11 AID Remove the Boards Remove the seven screws by Torque and remove the Power Board and Main Board Install The ground cable should be laid above the other two cables and below the screw pillar Install Note The pins can t touch the blue and purple lines 28 17 LCD Color Monitor Dell E1 8WFPC The end Install The angle between CCFL line and vertical direction should be 45 degree 29 17 LCD Color Monitor Dell E178WFPC 7 Schematic Diagram 7 1 Main Board 101 0805 1 16W 102 1008 1 16W DSUB H R103 MQOR 1 16W 1 5 FB102 7T5R 1 16W de de 2K2 1 16W 100R 1 16W 101 R105 R106 102 c103 BEAD 0 047uF gt gt DSUB_B 2102 2 2 1 16W UDZS5 6B 2pF 2 R107 C104 5pF 50V C105 0 047uF gt gt DSUB B 2 R10 100R 1 16W 101 10 R109 3900 1 16W C106 sci 40961 SCL 4169 5 VGA PLUG FB103 D gt DSUB_SOG 2 R110 9 DSUB 5V DSUB 5V 4 9 1008 1 46W 107 8 BEAD 0 047uF D gt DSUB_G 2 3 VGA 7 G 20103 20104 R112 DDC1 SDA 1Q0R 1 16 2 Gt UDZS5 6B UDZS5 6B 5pF 50V 2 DDC1 SDA R11 oe 6 758 1 16W 1 E 2 R11 100R 16 109 70105 70106 DB15 gt gt DSUB_G 2
38. y 65 5 RH 9 Illumination Fluorescent light Day Light Type display surface illumination to be 300 700 Lux standard o00Lux To be a distance about 35 5 cm in front of LCD unit viewing line should be perpendicular to the surface of the module judge the visual appearance with human s eyes Stand up the panel for judge and 30 viewing edge will be allowed Take off the protection film of polarizer while judging the display area If there is any question while judging check the panel again in operating mode 4 5 2 Display Defect Requirements 1 O red green or blue bright dots sub pixels 0 green dots 0 joined bright dot min distance between 2 bright dots 10 mm Bright dots are tested with full screen black pattern R G B 0 0 0 2 Max 4 black dots Max 2 joined 2 adjacent black dots no defect with 3 adjacent black dots Min distance between 2 black dots 10mm Black dots are tested with full screen white R G B 255 255 255 red R G B 255 0 R G B 0 255 O blue R G B 0 0 255 pattern 3 Total amount of Dot Defects are 5 Max Including bright and dark dot defects 20 17 LCD Color Monitor Dell E178WFPC 9 Block Diagram 5 1 Software Flow Chart 21 17 LCD Color Monitor Dell E178WFPC 1 2 3 4 9 6 1 8 MCU Initializes Is the EEprom blank Program the EEprom by default values Get the PWM value of brightness from EEp

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