Service Manual Service Manual LCD Monitor ST2010 - 0 -...
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Copyright 2007 InnoLux Display. Corp. Ltd All Rights Reserved This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to a electronic or machine readable form without prior written permission of Foxconn Tech. Corp. Ltd. Dell ST2010 Service Manual...
Service Manual Chapter 1- PRECAUTIONS & SAFETY NOTICES SAFETY PRECAUTIONS This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper used or installation may cause damage to the monitor as well as to the user. WARNINGS: This monitor should be operated only at the correct power sources indicated on the rating label on the rear cover of the monitor.
Chapter 3- CIRCUIT THEORY 1.Block Diagram Dell ST2010 consists of a main body and a stand (base). The main body contains a LCD module with 2 CCFL lamps, There are 4pcs PCBA in this monitor, one is power& inverter which is a single layer board, one is interface board, one is function keypad which is OSD control located on the right side back cover,one is power DC_on/off key.
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Service Manual Panel Interface Brightness /ON_OFF Control Panel Vcc on/off switch AP1117E33A LM1117M-3.3 AP1117E18 LM1117M-1.8 Scalar 1.8V OSD/KEY 24C16 XTAL TSUMU58EDJ-LF 14.318MHz dynamic contrast ratio Flash power saving control EDID EDID 24C02 24C02 HDMI Connector VGA Connector Fig.1...
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Service Manual power MOSFETs to regulate the CCFL current. 2.1.2 Output Circuit and Protection Circuit operations:(fig.3) DRV1 3pF/3KV 12pF/3KV +13V ISEN DRV2 680u/25V DIP EEL19 SPW-054 3pF/3KV PIN1 PIN2 PIN3 DIM/ON/OFF PIN4 PIN5 PIN6 PIN7 ISEN PIN8 PIN9 PIN10 DRV2 PIN11 PIN12 +13V...
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Service Manual Fig.4 2.2.2) AC Input and EMI Filter:(fig.5) Fig.5 CN850 is a connector for connecting AC Power. F850 is a fuse to protect all the circuit AC. Input voltage is from 90V to 264V. R850 and R851 are joined between two inputting main circuit to prevent man from shock.
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Service Manual D850 BL4-06 R853 C854 0.2R 100u/450V C875 R880 D853 4700p/250V TVS-P6KE170A 82K 2W Sign al_ GND D851 FR10-10-LF R856 D852 10 1% SF10-04 C855 10u/50V C872 Q850 CN852 AP2764 NC/100P/1KV G ate R855 Ise n se R869 Signal_GND 0R68 2W CON8PIN ZD881...
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Service Manual R849 220R C846 I sense CN852 220pF/50V NPO D849 Gate U850 LD7575 Signal_GND Isense R842 Signal_GND COMP R847 C847 R846 Open 100K/ 1% R843 C849 C848 100nF/50VX CON8PIN 1nF/50V NPO Signal_GND Signal_GND Signal_GND R848 R841 10K/NC Signal_GND Fig.6 D850 is a rectifier in which there are 4 build-in diodes, inverting AC to DC.
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Service Manual normal operating. The typical current mode PWM controller feedbacks both current signal and voltage signal to close the control loop and achieve ragulation.U850 detects the Q850 current from Isense pin which max voltage is set as 0.85V, then the Q850 current can be calculated as:I peak=0.85V/R869,When the sense voltage across the sense resistor R869, reaches the threshold voltage over 0.85V, the output GATE drive will be turned off.
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Service Manual energy when current is reversed. The parts including C862, C863 C864 andL852 are used to smooth the current waves that are from D855, then 13V voltage is supplied. D856 is a SCHTKY diode used to rectify the inducted current.C866 and R866 are used to store energy when current is reversed,The components including C867,C868andL851, C867 and C868 are used to smooth the current waves,then DC+5V voltage is supplied.
Service Manual HDMI cable the U105#3pin will receive a high signal and system enter self test mode when exit factory mode(the device must set at HDMI input mode ). - U204 is an EEPROM IC which is memory and HDMI input EDID data saved in it ,the U204 power is supplied by PC via CN201#18 through D201, or supplied by Monitor self via D201.
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Service Manual Software power On/Off - When press power key, U105 #119 receives low pulse, then U105(TSUM58EDJ-LF) will be wake up and send control signals(at U105#125pin and #73Pin) to on CCFL and switch 5.0v to panel module, at the same time,U105 make the VGA/HDMI cable input signal source display normal on panel if the VGA/HDMI cable input signal is active If power ON, U105 #123 (LED_blue) will send out low potential, and then LED blue on.
Service Manual Power supply for panel+5V V Signals Valid data (Digital RGB, HS, VS, DE, CLOCK) Power supply for backlight T1(ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms) T6 (ms) T7(ms) SPEC(Samsun 0.3~10 0.0~50 >500 >100 0.0~50 >1000 5. D-SUB Connector Pin Assignment Symbol Symbol Symbol...
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Service Manual Symbol Description Panel_Vcc Panel power supply (typ.5.0V) Panel_Vcc Panel power supply (typ. 5.0V) Panel_Vcc Panel power supply (typ. 5.0V) GND_LVDS LVDS Ground RXE3+ LVDS signal of even channel 3(-) RXE3- LVDS signal of even channel 3(+) RXEC+ LVDS signal of even channel clock (+) RXEC- LVDS signal of even channel clock (-) RXE2+...
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Service Manual 8.2 U108 (Serial Flash) Symbol Description The device is enabled by a high to low transition on CE#. CE# must remain low for the duration of any command sequence. To transfer commands, addresses, or data serially into the device. The write protect (WP#) pin is used to enable/disable BPL bit in the status register.
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Service Manual 8.3 U850 (LD7575, Power Controller) Symbol Description This pin is to program the switching frequency Voltage feedback pin,By connecting a COMP photo-coupler to close the control loop and achieve the regulation Current sence pin PWM output ,Gate drive output to drive the external MOSFET Power supply Unconnected pin...
Service Manual 2. ST2010 Disassembly Block LE20Q 5 DIS AS S EMBLY BLO CK ke ypa d boa rd*1 S cre w,P ,Cross, FINAL AS S Y*1 T,T-2*3,BLK* (P ,Cross,M4*8,BLACK-NL)*3 logo pla te *1 (I,Cross,M3*4,Zn-Cc)*4 Button powe r *1 P ANEL*1...
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Service Manual LE 20Q 5 AS S E MBLY BLO C K Chassis*1 Button_powe r *1 C HAS S IS AS S Y *1 E MI clip * front be ze l *1 MYLAR F O R C HAS S IS *1 logo pla te *1 I/F boa rd *1 Back cover*1...
Service Manual Chapter 5- TEST AND ADJUSTMENT 5.1 Function key Definitions Control buttons on the front bezel 5.1.1 Control buttons on the front bezel CONTROL KEY KEYS FUNCTION Personalize 1 Execute Personalize 1 function Personalize 2 Execute Personalize 2 function Menu Enter main menu Exit...
Service Manual [Ù] [Ú] MENU Exit POWER Ú [[Ù]] Press & [ ] at the same time, and power then press ● ● FACTORY MODE [POWER] for DC power on. Press the [Ù] key to enter factory menu 5.2 OSD control First Second Third...
Service Manual Menu Transparency Menu Timer Menu Lock Unlock Lock DDC/CI Enable Disable LCD Conditioning Disable Enable Factory Reset Personalize Shortcutkey1 Preset Modes Brightness /Contrast Auto Adjust Input Source Shortcutkey2 Preset Modes Brightness /Contrast Auto Adjust Input Source In OSD dialog box, should show current input video signal (1Auto select, 2 VGA, 3 HDMI ), current model resolution @ Ver.
Color Temp: The R, G, B of Blue Preset (9300K), Red Preset (5700K) and Normal Preset (6500K) are generated from scaling chip’s back-end white-balance program. Time: Turn-on time of the panel. DEBUG: Debug tool of scale IC U105. Dell panel P/N PANEL Supplier P/N CODE PANEL...
Service Manual 5.5 Auto Color Balance (Automatically calibrate chip ADC parameter by using chip internal DAC.) 5.1 If it is a new-built set, press “Auto/Plus” button to execute “Auto Color” at standard video pattern 5-MOSAIC pattern 5.2 Please confirm the following steps to perform “Auto Color Balance”: - Connect the VGA cable with the standard video pattern generator and display pattern on the monitor.
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Service Manual Fig 11 ※ The detailed reprogramming procedures will be described in ISP User's Guide. Edid 8.4.rar Edid.rar ISP User's Guide_20070312.rar ISP_Tool V4.100.rar After repair, to ensure the quality you should do the following test and adjustment.
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Service Manual Item Content Equipment Test OSD 1.Signal is set as 1280×1024@60Hz under General-1 Chroma function 2. LCM button are from left to right, checking whether each Signal Generator single function key and compound function key can be worked. Contrast Check 1.
Service Manual Chapter 6- TROUBLE SHOOTING Remark: Press the upper side of the round cover to remove it. The round cover (circle red) located in the cente the rear cover is design hid rear cover molding It’s required to remove repairing since under w there are screws.
Service Manual change panel. If the self-test pattern is moving on the screen, please check whether VGA Cable is plugged in the Monitor or PC if select analog model on OSD or check whether HDMI Cable is plugged in the Monitor or PC if select HDMI model on OSD .
Service Manual 3. Power (include IF +5Vand +3.3V) supply normal but LED off and no display Is the key function OK? Press power key to DC on the monitor,if d ok the process is end , if no display but LE function ok see the no backlight process Is the frequency 14.318MHz at #128 of Change crystal X101...
Service Manual 5. Power (include IF +5Vand +3.3V) supply normal but LED Amber Is Power LED Amber? Do the Hsync. & Vsync. Signals exist Insert VGA Cable correctly in CN102 #13& #14 separately when select VGA mode by OSD? Do the Hsync. & Vsync. Signals exist Check R135 &...
Service Manual 6. 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 Is the CN851 on-off control signal come from IF ok? inserted CN101 OK? Is the on-off control signal #109 of U105 high-low convertible when DC on/off Change U105 Is the...
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Service Manual 7. Backlight on,key function and LED accurate indication ok but no picture Backlight on,key function and LED accurate indication ok but no picture Is the panel enable signal at 73# of IS the display is white and cannot Check DC 5.0V on U105,if no check display OSD when press key?
Service Manual 8. At 32-gray scale pattern, color lost in some scale Color lost in some scale at 32-gray scale pattern Re-insert the FFC Cable Change FFC Cable Check crystal circuit, if the wave of 14.318MHz signal is normal change U105 else change X101...
Service Manual Chapter 7- RECOMMENDED PART LIST ST2010 Critical Parts List ST2010 Critical Parts List Component Component Itm Category Type Location Supplier number Suppiler PN Object description Purpose Power IC LD7575PS PWM Control Function U850 LEADTREND, 412000453820R LD7575 Control IC...
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Service Manual ITEM Phant.item P/N Description Supplier PCBA,P/I BOARD,W/O SPK,AI,LE20Q5-817 792821410800R 10 x 792821450800R PCBA,P/I BOARD,W/O SPK,AI/A,LE20Q5-817 20 x 792821460800R PCBA,P/I BOARD,W/O SPK,AI/R,LE20Q5-817 ITEM Phant.item P/N Description Supplier PCBA,P/I BOARD,W/O SPK,MI,LE20Q5-817 792821420800R 430637020030R WFR. 2P P=3.5mm 90°W/LOCK,RoHS CVILUX,FCN,FOXCONN, 440149000350R SKT AC 10A/250V U/C/V, H 1.0MM ROHS TECX, 418112051520R CAP CD NPO 12pF 3KV J,S7.5, RoHS...
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Service Manual ITEM Phant.item P/N Description Supplier PCBA,CONTROL/B(PWR 792552140B00R LD7575),SMD,LE20P9 R 419312210060R C SMD(0603) X7R 220PF/50V K RoHS DARFON,TDK,WALSIN,YAGEO, 419311040060R C SMD(0603) X7R 0.1uF/50V K RoHS DARFON,TDK,WALSIN,YAGEO, 419311020060R C SMD(0603) X7R 1000PF/50V K RoHS DARFON,TDK,WALSIN,YAGEO, 414904020350R RES SMD (1206) 20KΩ J,RT RoHS TA-I,UNIOHM,WALSIN,YAGEO, 414916010410R RES SMD (0603) 100K F,RT RoHS...
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Service Manual ITEM Phant.item P/N Description Supplier 792821450800R PCBA,P/I BOARD,W/O SPK,AI/A,LE20Q5-817 411032006020R DIO FR10-10-LF 1000V/1A AT(FRO NTIER)RoH FRONTIER, 411032006040R DIO FR107 1000V/1A DO-41(MOSPE C)RoHS MOSPEC, 411020053090R DIO PS1010R 1000V/1A DO-41(PAN JIT)RoHS PANJIT, 411020064090R DIO ER104 400V/1A DO-41(PANJIT RoHS PANJIT, 411032001020R DIO SF10-04-LF 400V/1A DO-41(F RONTIER)R FRONTIER, 411020080090R DIO P6KE170A 600W/100A DO-15(PANJIT)...
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Service Manual ITEM P/N Description Supplier Usage Un Location 792821300800R PCBA,I/F BOARD,W/O SPK,LE20Q5-817 10 792821320800R PCBA,I/F BOARD,W/O SPK,MI,LE20Q5 1 PC 20 792821340800R PCBA,I/F BOARD,W/O SPK,SMT,LE20Q5- 1 PC 30 629030029300R PROGRAM,W/O SPK,LE20Q5-817 ROHS 1 PC SOLDER 40 511130001200R TOMAS, 2.6 G BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0 ITEM P/N Description...
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Service Manual DARFON,MURATA, 100 419302200510R C SMD(0402) NPO 22PF/50V J,RoHS 2 PC C157,C158, TDK,WALSIN,YAGEO, 110 411020026210R DIO BAV99 350mW 70V SOT-23(PHI RoHS PHILIPS, 4 PC D102,D103,D104,D105, A 110 411020026090R DIO BAV99 350mW 75V SOT-23(PEC RoHS PANJIT, 0 PC 110 411020026440R DIO LBAV99LT1G SOT23(LRC)RoHS LRC, 0 PC 120 411090058090R SCHTKY BAT54C 30V/0.2A SOT-23(PEC) PANJIT,...
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Service Manual 330 412000330020R IC LD1117AL-1.8V-A SOT223(UTC) RoHS UTC, 1 PC U102, 330 412000599990H IC EC50117BBG 1.8V SOT223(E-CMOS) E-CMOS, 0 PC IC AS1117L-1.8/TR-LF,SOT223(A1 330 412000330830R A1SEMI, 0 PC SEMI)RoHS 330 412000330070R IC AZ1117H-1.8 SOT223(AAC)RoHS BCD, 0 PC 340 412000435481R IC AT24C02BN-SH-T 2K SOIC8(ATMEL)RoHS ATMEL, 2 PC U103,U204, 340 412000769830R IC AS24C02ID-18/TR-LF SOP8(A1SEMI)
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10 453070800150R PWR CORD 10A/125V BLK 6FT UL/CSA SVT 3Cx Foxconn,I-shen 1 PC Foxconn,JVE 20 453010100320R CABLE D-SUB 15P MALE 6FT BLACK/BLUE AB 8 1 PC HOTRON,廣宇 30 714074083001R ASSY,FINAL(B+S)W/O SPK,LE20Q5-817(ST2010 1 PC 40 713100015900R ASSY, PACKAGE, PACK, DAO,LE20Q5 1 PC ITEM Description Supplier...
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100 506060018000R Cushion EPS-TOP ,LE20Q5 東揚, 1 PC 110 506060018001R Cushion EPS-BOTTON ,LE20Q5 東揚, 1 PC 120 506340004700R LABEL BLANK 101X50mm DELL EMEA CARTON 高綺,鍵升, 1 PC 130 506380002622R TAPE, WRAPPING TYPE PRINTED(DELL), BLACK 佳普森, 0.0015 ROL A 140 713010008102R ASSY PACK,40HQ,LE20Q5...
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Supplier Usage Un 714030027600R FRONT-BEZEL-ASSY,LE20Q5 10 501010227000R FRONT-BEZEL,LE20Q5 MMP, 1 PC 20 751020200100R SUB,POWER BUTTON,,LASER ETCH,LE20Q5 PCM, 1 PC 30 501110500301R LOGO PALTE DELL Apollo 4 1 PC ITEM Description Supplier Usage Un 714077440700R BACK-COVER-ASSY,LE20Q5 10 501020233300R BACK COVER,LE20Q5 MMP,...
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Service Manual 60 502210100300R KENSINGTON LOCK LP1703 ROHS MMP, 1 PC ITEM Description Supplier Usage Un 714084083001R ASSY,PANEL,W/O SPK,LE20Q5-817(ST2010) 10 631102200530RD LCP 20.0"LTM200KT03-C02(A)(SAMSUNG)ROHS 1 PC 20 701000016500R CHASSIS-ASSY,LE20Q5 MMP, 1 PC 30 506380001730R TAPE ACE 85x20mm LE1913 久威, 1 PC 40 509146306202R SCREW,P,CROSS,W/WAS(7.8),M3*6,Zn-Cc,ROHS...
Service Manual Note: 1. Each bypass capacitor (0.1u/16V) must be respectively closed to pin that is DC power input of scaler IC. VDDP_33 AVDD_33 VDDC_18 AVDD_18 VCC_3.3V VCC_3.3V VDDP_33 Note AVDD_33 FB102 60Ω C150 47u/16V RED+ RIN0P R153 RED- RIN0M GPIO_P00/SAR0 R154 GREEN+...
C108 0.1/16V R109 C111 C104 0.1/16V C102 100u/16V 0.1/16V R107 PANEL_ENABLE Q104 PMBT3904 R108 C112 4.7u/16V BRIGHTNESS T-HOLESCREW T-HOLESCREW Title DC input Size Document Number <Doc> Date: Monday , February 09, 2009 E:\ST2010\proto3\ dell st2010 pvt.pdf 2. OSD keypad schematic...
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CON--JWT-A1258WR04PS DOWN MENU EXIT ZD04 ZD02 ZD06 ZD03 ZD05 ZD07 KEY ACTIVE STATUS ADC_KEY1 ADC_KEY2 DOWN 1.06V 1.06V EXIT 1.49V MENU(SELECT) 1.49V Title ST2010 Size Document Number Function keypad Date: Tuesday , December 30, 2008 Sheet 3. Power keypad schematic...
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Service Manual CN01 CON--JWT-A1258WV04PS LED01 ZD01 POWER Title ST2010 Size Document Number KEYPAD--POW ER Custom Date: Tuesday , December 30, 2008 Sheet...