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Dell E152FPc Service Manual
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Dell E152FPc Service Manual

15” lcd monitor
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DELL E152FPc

SERVICE MANUAL

15" LCD MONITOR
DELL E152FPc
THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT
HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE
ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE LIABILITY
FOR CHANGES, ERRORS OR OMISSIONS.
MANUFACTURE DATA: MAR.-20-2005
1

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Summary of Contents for Dell E152FPc

  • Page 1: Service Manual

    DELL E152FPc SERVICE MANUAL 15” LCD MONITOR DELL E152FPc THESE DOCUMENTS ARE FOR REPAIR SERVICE INFORMATION ONLY. EVERY REASONABLE EFFORT HAS BEEN MADE TO ENSURE THE ACCURACY OF THIS MANUAL; WE CANNOT GUARANTEE THE ACCURACY OF THIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RE LIABILITY FOR CHANGES, ERRORS OR OMISSIONS.

  • Page 2: Table Of Contents

    DELL E152FPc Table of Contents TABLE OF CONTENTS....................... 2 1. MONITOR SPECIFICATIONS ....................4 2. LCD MONITOR DESCRIPTION ....................5 3. OPERATING INSTRUCTIONS ....................6 3.1 GENERAL INSTRUCTIONS....................6 3.2 CONTROL BUTTONS ......................6 3.3 ADJUSTING THE PICTURE....................7 4. INPUT/OUTPUT SPECIFICATION ..................10 4.1 INPUT SIGNAL CONNECTOR..................
  • Page 3 DELL E152FPc Revision List Revision Date Revision History TPV model Mar-20-2005 Initial Release Add” Max Brightness measurement” on April-25-2006 Page36...

  • Page 4: Monitor Specifications

    DELL E152FPc 1. MONITOR SPECIFICATIONS Driving system TFT Color LCD Size 38.1mm(15.0") Pixel pitch 0.297mm(H) x 0.297mm(V) Flat Panel Viewable angle 120˚ (H) 100˚ (V) Response time (typ.) 25 ms Video Analog Only Sync. Type H/V TTL Separate and Composite Sync.

  • Page 5: Lcd Monitor Description

    DELL E152FPc 2. LCD MONITOR DESCRIPTION The LCD MONITOR will contain a main board, an internal PWPC board, keypad board, which house the flat panel control logic, brightness control logic and DDC.The internal PWPC board will drive the backlight of panel and the DC-DC conversion.

  • Page 6: Operating Instructions

    DELL E152FPc 3. OPERATING 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.

  • Page 7: Adjusting The Picture

    DELL E152FPc 3.3 ADJUSTING THE PICTURE To set the OSD menu, perform the following steps: Briefly press the SELCT / MENU button to activate the OSD menu. The main menu appears on the screen with icons for the setting functions.
  • Page 8 DELL E152FPc Adjusting the brightness and contrast Calling the Brightness / Contrast setting window using Brightness button. Brightness Setting the brightness of the display With this function you change the brightness of the background lighting. Contrast Setting the contrast of the display With this function you modify the contrast of bright colour tones.
  • Page 9 DELL E152FPc Vertical Setting the vertical position of the OSD menu Position With this function you move the OSD menu up or down. Setting the display duration of the OSD menu, the default value is 20s; Hold Time With this function you select a value from 0 to 60 seconds.

  • Page 10: Input/Output Specification

    DELL E152FPc 4. INPUT/OUTPUT SPECIFICATION 4.1 INPUT SIGNAL CONNECTOR 15-pin D-sub connector PIN NO. DESCRIPTION PI N NO. DESCRIPTION Green Detect Cable Blue Ground Ground DDC-Serial Data Ground H-Sync R-Ground V-Sync G-Ground DDC-Serial Clock B-Ground VGA Connector layout 4.2 FACTORY PRESET DISPLAY MODES...

  • Page 11: Power Supply Requirements

    DELL E152FPc 4.3 POWER SUPPLY REQUIREMENTS 4.3.1 INPUT REQUIREMENTS AC INPUT VOLTAGE: 100V ~ 240V AC INPUT FREQUENCY: 50 ~ 60 HZ AC INPUT CURRENT: 1.5A MAX INRUSH CURRENT: 50A MAX AT 220V LEAKAGE CURRENT: 3.5 mA Max. 4.3.2 OUTPUT REQUIREMENTS ITEM MIN.
  • Page 12 DELL E152FPc 4.4.3 OPTICAL CHARACTERISTICS...
  • Page 13 DELL E152FPc 4.4.4 PARAMETER GUIDE LINE FOR CCFL INVERTER BACKLIGHT...

  • Page 14: Block Diagram

    DELL E152FPc 5. BLOCK DIAGRAM 5.1 MONITOR EXPLODED VIEW...

  • Page 15: Software Flow Chart

    DELL E152FPc 5.2 SOFTWARE FLOW CHART...
  • Page 16 DELL E152FPc 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.

  • Page 17: Electrical Block Diagram

    DELL E152FPc 5.3 ELECTRICAL BLOCK DIAGRAM Main Board 12MHz Crystal LCD Interface (X200) (CN201) TCLK/XTAL LVDS Signal output Scalar GmZan3 (Include MCU, ADC, OSD) MTV312MV (U200) (U202) H-sync, V-sync R/G/B EPR_SDA EPR_SCL Control EEPROM D-Sub Interface M24C16 Connector (CN301) (U201)

  • Page 18: Schematic

    DELL E152FPc 6. SCHEMATIC 6.1 MAIN BOARD VGA_5V D100 C101 BAT54C 0.1uF/16V VGA_5V DDC_5V D101 D102 D103 C104 ZD101 BAV99 BAV99 BAV99 0.1uF/16V LL5232B 5.6V 5% 　 FB101 0 1/16W R101 　 1/16W C103 0.01uF RED+ RED+ C105 0.01uF R103...
  • Page 19 DELL E152FPc +3.3V 3.3V_DVDD +1.8V 1.8V_DVDD FB201 3.3V_DVDD 1.8V_DVDD FB200 120 OHM C201 120 OHM C210 10uF/16V 22uF/16V Close to respective power Pins 3.3V_AVDD 3.3V_AVDD U200 3.3V_DVDD 3.3V_AVDD 1.8V_AVDD 8/22 del C218 for DIP AVDD_BLUE_3.3 FB202 FB203 AVDD_GREEN_3.3 AVDD_3.3 120 OHM...
  • Page 20 DELL E152FPc 　 R310 4.7K 1/16W LED-GREEN Q302 　 Q301 PMBS3904 R311 4.7K 1/16W PMBS3904 LED-ORANGE RP301 　 4.7K 1/16W CN301 GRNLED 　 RP300 100 1/16W ORGLED AUTO KEY_AUTO ENTER KEY_MANU RIGHT KEY_RIGHT LEFT KEY_LEFT POWER KEY_ON/OFF 　 R304 1/16W...
  • Page 21 DELL E152FPc 1pin = 1A CN400 BLON/OFF BLON/OFF BRIGHTNESS BRIGHTNESS BLON/OFF BKLT_EN 　 R400 4.7K 1/16W R403 C408 C403 C402 2.2uF/16V 0.1uF/16V 47uF/16V +3.3V LCD_+3.3V FB402 TO252/TO263 　ノ U402 120 OHM Two types D401 AIC1084-33M VOUT SR24 FB401 C417 C404...

  • Page 22: Pwpc Board

    DELL E152FPc 6.2 PWPC BOARD Q203 SI4431 OR AO4411 L201 150UH C226 CON201 F201 L205 4A/63V +12V JUMP OPEN Q202 R224 R225 R226 R227 C202 C201 C230 33L8021-2D Q201 DTA144WKA D203 C227 CON203 0.1U/25V 150U/25V 1000P R212 R216 PT201 DTC144WKA 3.9K...
  • Page 23 DELL E152FPc C0N102 ON/OFF ON/OFF R920 C920 　 1/2W 0.001uF/500V 33A8009-12G-H T901 D910 L903 20A/100V DB901 R906 C922 　 2KBP06M 1/4W R904 C905 R903 1000uF/16V C924 C930 C926 　 　 1/4W 0.0015uF/2KV 100K R921 470uF/16V 1000P 0.1uF 　 C904 1/2W...

  • Page 24: Pcb Layout

    DELL E152FPc 7. PCB LAYOUT 7.1 MAIN BOARD...
  • Page 25 DELL E152FPc...

  • Page 26: Pwpc Board

    DELL E152FPc 7.2 PWPC BOARD...

  • Page 27: Keypad Board

    DELL E152FPc 7.3 KEYPAD BOARD 8. MAINTAINABILITY 8.1 EQUIPMENTS AND TOOLS REQUIREMENT Voltage meter. Oscilloscope. Pattern Generator. DDC Tool with a IBM Compatible Computer. Alignment Tool. LCD Color Analyzer. Service Manual. User Manual.

  • Page 28: Trouble Shooting

    DELL E152FPc 8.2 TROUBLE SHOOTING 8.2.1 MAIN BOARD 1.NO SCREEN APPEAR Check Power board, is there DC level output? Check Correspondent component. Measured U402 pin 3 = 5 V? No DC Level Is there any shortage or cold solder? Measured U402 pin 2= 3.3V? Measured U401pin 2 =1.8V?
  • Page 29 DELL E152FPc 2.PANEL-POWER CIRCUIT Check the PPWR panel power relative circuit, Check FB401 should have response from 0V to 3.3V Q300, Q303 In normal operation, when LED =green, When we switch the power switch from on to off R308 should =0 v,...
  • Page 30 DELL E152FPc 4.U200-DATA OUTPUT Measured DVS, DHS (pin 8,9 from U200) Is the waveform ok? DCLK around 48 MHZ, DVS=60.09Hz, DHS around 31 KHz? (Refer to input NG, no transition signal=640x480@60 Hz 31k, and LED is Green) Replace GMZan3 (U200) or replace MAINBOARD.
  • Page 31 DELL E152FPc 8.2.2 PWPC BOARD 1.) No power   Check to CN102 Pin10 = 5V Check Interface board Check AC line volt 120V or 220V Change F901 Check the voltage of C904(+) Check bridge rectified circuit Check start voltage for the pin3 of IC901...
  • Page 32 DELL E152FPc 2.) W / LED, No Backlight Check C201 (+) =12V Change F201 Check D201/Q206/Q207 Check ON/OFF signal Check Interface board Check U201 pin9=12V Change Q201 or Q202 Check the pin1 of U201 have saw tooth wave Change U201 Check D201 (-) have the output of square wave at short time.
  • Page 33 DELL E152FPc 8.2.3 Keypad Board OSD is unstable or not working Connect Keypad Board Is Keypad Board connecting normally? Replace Button Switch Is Button Switch normally? Replace Keypad Board Is Keypad Board Normally? Check Main Board...

  • Page 34: White-Balance, Luminance Adjustment

    DELL E152FPc 9.WHITE-BALANCE, LUMINANCE ADJUSTMENT Before started adjust white balance, please setting the Chroma-7120 MEM. Channel 3 to 6500 K colors, MEM. Channel 4 to 9300 K colors, MEM. Channel 9 to 5700 K (our 9300 parameter is x = 283 ±28, y = 297 ±28, Y = 175±20 cd/m , 6500 parameter is x = 313 ±28, y = 329 ±28, Y = 180 ±20 cd/m...

  • Page 35: Edit Content

    DELL E152FPc Max Brightness measurement: a. Switch to the full white pattern, in user mode main menu: 1. Set <Color Settings> Red, Green, and Blue to the max. 2. Set <Brightness> Brightness, Contrast to the max. b. The Minimum brightness is 200cd/m ±20...

  • Page 36: Bill Of Material List

    DELL E152FPc 11. BILL OF MATERIAL LIST CBPC560KSLDLN CONVERSION BOARD FOR DL KEPC560KDE1 KEY BOARD FOR T560K*DEL PWPC1542SED1 POWER BOARD 11G6036 1 SPACER SUPPORT SCC-24 15G5996 1 REAR COVER 23L3178700 1A LOGO 26L 800700 4A6444 BARCODE 33L4669 GV C POWER BUTTON...
  • Page 37 DELL E152FPc M1L1030 10128 SCREW M1L1430 6128 SCREW M3X6 Q1L 330 8120 SCREW 3X8mm 705L 560 87 02 CN901 ASS'Y 750LLS50 XH SEC 15" PANEL(XH-L01) CBPC560KSLDLN AIC560KCLDL MAIN BOARD 40L 457624 1B CPU LABEL 40L 45762412B CBPC LABEL C201 67L309V100 3...
  • Page 38 DELL E152FPc C205 65L0603104 12 0.1UF +-10% 16V X7R C206 65L0603104 12 0.1UF +-10% 16V X7R C207 65L0603104 12 0.1UF +-10% 16V X7R C208 65L0603104 12 0.1UF +-10% 16V X7R C209 65L0603104 12 0.1UF +-10% 16V X7R C211 65L0603104 12 0.1UF +-10% 16V X7R...
  • Page 39 DELL E152FPc FB203 71L 56K121 M CHIP BEAD FB401 71L 56K121 M CHIP BEAD Q101 57G 759 2 RK7002 Q102 57G 759 2 RK7002 Q300 57L 763 1 A03401 SOT23 BY AOS(A1) Q301 57G 417 4 PMBS3904/PHILIPS-SMT(04 Q302 57G 417 4...
  • Page 40 DELL E152FPc R207 61L0603101 CHIPR 100 OHM +-5% 1/10 R208 61L0603101 CHIPR 100 OHM +-5% 1/10 R210 61L0603101 CHIPR 100 OHM +-5% 1/10 R212 61L0603472 CHIPR 4.7K OHM +-5% 1/1 R213 61L0603472 CHIPR 4.7K OHM +-5% 1/1 R214 61L0603472 CHIPR 4.7K OHM +-5% 1/1...
  • Page 41 DELL E152FPc ZD101 93G 39147 TZMC5V6 ZD102 93G 39147 TZMC5V6 ZD103 93G 39147 TZMC5V6 ZD104 93G 39147 TZMC5V6 ZD105 93G 39147 TZMC5V6 ZD106 93G 39147 TZMC5V6 ZD107 93G 39147 TZMC5V6 KEPC560KDE1 715L1153 1A CN101 95G8014 8 6 HARNESS 28CM DP101...
  • Page 42 DELL E152FPc CON102 95G8014 6 19 WIRE HARNESS CON205 33L8021 2D AC CONN.2P R/A 87210-0236 CON206 33L8021 2D AC CONN.2P R/A 87210-0236 CON207 33L8021 2D AC CONN.2P R/A 87210-0236 CON208 33L8021 2D AC CONN.2P R/A 87210-0236 IC901 56G 379 32...
  • Page 43 DELL E152FPc C908 65L0805104 32 CHIP 0.1UF 50V X7R C909 65L0805104 32 CHIP 0.1UF 50V X7R C910 65L0805102 32 CHIP 1000P 50VX7R 0805 C926 65L0805104 32 CHIP 0.1UF 50V X7R C927 65L0805104 32 CHIP 0.1UF 50V X7R D201 93G2004 2A...
  • Page 44 DELL E152FPc R235 61L0603621 CHIPR 620 OHM+-5% 1/10W R236 61L0603511 CHIPR 510 OHM+-5% 1/10W R237 61L0603511 CHIPR 510 OHM+-5% 1/10W R238 61L0603123 CHIP 12K OHM 1/10W R239 61L0603123 CHIP 12K OHM 1/10W R240 61L0603513 CHIP 51K OHM 1/10W R241 61L0603513...
  • Page 45 DELL E152FPc D903 93L 64 1152T 1N4148 F901 84G 56 1 FUSE 2A 250V WICKMANN FB901 71L 55 29 FERRITE BEAD IC903 56L 158 4 T H431BA L902 6G 31502 1.5MM RIVET PT201 6G 31502 1.5MM RIVET PT202 6G 31502 1.5MM RIVET...
  • Page 46 DELL E152FPc 90L6064 1 HEAT SINK M1L1730 8128 SCREW M3x8 D910 93G 60245 SP10150 D911 93G 60217 FMB-29L 96L 29 6 SHRINK TUBE UL/CSA R917 61L 2J39858H 0.390OHM 5% 2W 96L 29 6 SHRINK TUBE UL/CSA R903 61L152M10458F 100K OHM 5% 2W...
  • Page 47 DELL E152FPc L203 73L 174 30YSA FILTER L204 73L 174 30YSA FILTER L902 73L 174 26 T1 LINE LILTER 0.45mm L903 73L 253 91 LS CHOKE BY LI SHIN L904 73L 253 91 LS CHOKE BY LI SHIN NR901 61L 58120 WT...
  • Page 48 DELL E152FPc F201 61L1206000 4 0 OHM 4A 1/4W Q201 57G 760 5B PDTC144WK SOT346 Q202 57G 760 4B PDTA144WK SOT346 Q203 57L 763 3 AO4411 SO-8 BY AOS SMT Q204 57L 763 3 AO4411 SO-8 BY AOS SMT Q205...
  • Page 49 DELL E152FPc R908 61L1206519 CHIPR 5.1OHM +-5% 1/4W R909 61L1206472 CHIP 4.7KOHM 5% 1/4W R910 61L1206472 CHIP 4.7KOHM 5% 1/4W R911 61L1206472 CHIP 4.7KOHM 5% 1/4W R912 61L1206101 CHIP 100 OHM 5% 1/4W R913 61L1206103 CHIP 10KOHM 5% 1/4W R914...
  • Page 50 DELL E152FPc R201 61L 60230352T 30KOHM 5% 1/6W R224 61L 17210252T 1K OHM 5% 1/4W R225 61L 17210252T 1K OHM 5% 1/4W R226 61L 17210252T 1K OHM 5% 1/4W R227 61L 17210252T 1K OHM 5% 1/4W R228 61L 17210252T 1K OHM 5% 1/4W...
  • Page 51 DELL E152FPc 95G 900 42 WIRE HARNESS 95L8021 2504 WIRE HARNESS 96L 29 6 SHRINK TUBE UL/CSA 15G5942 1 B BASE BRACKET 20L 008 1 BRACKET RISER 34L1230 Y2 T VESA COVER 34L1231 Y2 T RISER FRONT 34L1232 Y2 T...

  • Page 52: Definition Of Pixel Defects

    DELL E152FPc 12.DEFINITION OF PIXEL DEFECTS 12.1 VISUAL INSPECTION...
  • Page 53 DELL E152FPc 12.2 ELECTRICAL INSPECTION Definitions/ Notes: - A bright dot any Red, Green, or Blue pixel sucks in the “On” mode. - A dark dot any Red, Green, or Blue pixel sucks in the “Off ” mode. - Inspection pattern for electrical defect should be pure R, G, B, and Black and White.
  • Page 54 DELL E152FPc Fig. 1. Bright dot defect description (two adjacent) * Adjacent two dots in horizontal direction will be considered as one dot Fig. 2. Dark dot defect description (two adjacent)
  • Page 55 DELL E152FPc Fig. 3. Minimum distance between dot defects bright dot - to - bright dot dark dot - to - dark dot * Adjacent two dots in horizontal direction will be considered as one dot. * A minimum distance criterion is applied for dots defect only.

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