hit counter script
Dell E156FPc Service Manual
  1. Manuals
  2. Brands
  3. Dell Manuals
  4. Monitor
  5. E156FPc
  6. Service manual

Dell E156FPc Service Manual

15” lcd monitor
Hide thumbs
Table of Contents

Advertisement

Quick Links

Dell E156FPc

Service Manual

15" LCD MONITOR
DELL E156FPc
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 OFTHIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR
CHANGES, ERRORS OR OMISSIONS.
1

Advertisement

Table of Contents
loading

Related Manuals for Dell E156FPc

Summary of Contents for Dell E156FPc

  • Page 1: Service Manual

    Dell E156FPc Service Manual 15” LCD MONITOR DELL E156FPc 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 OFTHIS INFORMATION AFTER THE DATE OF PUBLICATION AND DISCLAIMS RELIABILITY FOR...

  • Page 2: Table Of Contents

    Dell E156FPc Revision List Revision Release Date Revise history TPV model T560KCDHK8DLNP Aug.-26-2005 Initial Release T560KGDHK8DZNP T560KGDHK8DENP Add” Definition Of Pixel Defects” Mar.-31-2006 Add” Max Brightness measurement” April-25-2006 on Page42 Mar.-30-2007 Add Mechanical Instruction in item 6...

  • Page 3: Table Of Contents

    Dell E156FPc Table of contents Table of contents ---------------------------------------------------------------------------------------------------------------- 02 1. Monitor Specifications ------------------------------------------------------------------------------------------------------04 2. LCD Monitor Description -------------------------------------------------------------------------------------------------- 05 3. Operation instructions --------------------------------------------------------------------------------------------------06 3.1 General Instructions ------------------------------------------------------------------------------------------------06 3.2 Control buttons --------------------------------------------------------------------------------------------------------06 3.3 On Screen Menu/Display (OSD) ---------------------------------------------------------------------------------------07 3.4 Adjusting the Picture -----------------------------------------------------------------------------------------------08 4.

  • Page 4: Monitor Specifications

    Dell E156FPc 1. Monitor Specifications Screen type Active matrix - TFT LCD LM150X08 - A5N1/TL01 (LPL) Panel Type CLAA150XP01 (CPT) Size 380mm(15.0") LCD Panel Pixel pitch 0.297mm(H) x 0.297mm(V) LM150X08 - A5N1/TL014: 65°/65° (H) 45°/55° (V) (typ.) (CR>10) Viewable angle CLAA150XP01: 70°/70°...

  • Page 5: Lcd Monitor Description

    Dell E156FPc 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.

  • Page 6: Operation Instructions

    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.

  • Page 7: On Screen Menu/Display (Osd)

    Dell E156FPc 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 Adjust Auto Adjustment button allows the monitor to self-adjust to the incoming video signal.

  • Page 8: Adjusting The Picture

    Dell E156FPc 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. Function icons Main Menu Menu icon Sub-Menu name Resolution 2. Push 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.
  • Page 9 Dell E156FPc Icon Menu Name Description and sub-menus EXIT This is used to exit out of the 'Main menu'. Positioning: 'Positioning' moves the viewing area around on the monitor screen. Horizontal When making changes to either the 'Horizontal' or 'Vertical' settings, no changes will Vertical occur to the size of the viewing area;...
  • Page 10 Dell E156FPc Phase If satisfactory results are not obtained 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.
  • Page 11 Dell E156FPc User Preset 'User Preset': Use the plus and minus 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).
  • Page 12 See Specifications for the Horizontal and Vertical frequency ranges addressable by this monitor. Recommended mode is 1024 X 768 @ 60Hz. Note: The floating 'Dell - self-test Feature Check' dialog will appear on-screen if the monitor cannot sense a video signal.

  • Page 13: Input/Output Specification

    Dell E156FPc 4. Input/Output Specification 4.1 Input Signal Connector Pin NO. Description Pin NO. Description Red Video Green Video Logic Ground Blue Video DDC-Serial Data Detector Pin H-Sync R-Ground V-Sync G-Ground DDC-Serial Clock B-Ground VGA Connector layout 4.2 Factory Preset Display Modes...

  • Page 14: Power Supply Requirements

    Dell E156FPc 4.3 Power Supply Requirements A/C Line voltage range 100 V ~ 240 V± 10 % 50 ± 3Hz, 60 ± 3Hz A/C Line frequency range Input Voltage transients 280 volts AC for 10 sec @40℃ Current 0.6A max, at 100V, 0.35A max, at 240 V <...

  • Page 15: Panel Specification

    Dell E156FPc 4.4 Panel Specification Display Characteristics (For LM150X08 - A5N1/TL01 panel) Display Characteristics (For CLAA150XP01 panel)
  • Page 16 Dell E156FPc 4.4.2 Optical Characteristics (For LM150X08 - A5N1/TL01 panel) Measured conditions as follows: Ta=25±2°C, VLCD=3.3V,Fv=60Hz,Dclk=65MHz,Llamp=8mA. Optical Characteristics (For CLAA150XP01 panel)

  • Page 17: Block Diagram

    Dell E156FPc 5. Block Diagram 5.1 Monitor Exploded View...

  • Page 18: Software Flow Chart

    Dell E156FPc 5.2 Software Flow Chart...
  • Page 19 Dell E156FPc 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 20: Electrical Block Diagram

    Dell E156FPc 5.3 Electrical Block Diagram 5.3.1 Main Board LCD Interface (CN101) Flash Memory Scalar GM2621 SST25VF020-20- 4C-SAE (Include MCU, ADC, OSD) (U402) (U401) EPR_SDA DB15_SDA, EPR_SCL DB15_SCL OSD Control Interface EEPROM D-Sub EEPROM (U404) (CN403) M24C16-MN6T Connector M24C02WMN6 (U403)
  • Page 21 Dell E156FPc 5.3.2 Inverter/Power Board...

  • Page 22: Mechanical Instruction

    Dell E156FPc 6. Disassembly Flow Chart Tools: 2 Power screwdrivers (φ=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.
  • Page 23 Dell E156FPc 3. Take off the bezel Remove rear cover : Turn over the monitor as the Fig, hold the rear cover, and then slightly remove it. Black tape Remove the two screws by Torque B Install: Fix the keyboard cable by black...
  • Page 24 Dell E156FPc Remove the shield : 1. Remove the screw by Torque B or by manual and remove the shield ,then remove the back light connector Remove the connector Remove the two screws by manual or torque = 3kgF.Cm remove the main frame...
  • Page 25 Dell E156FPc EVA washers Install: Fix the LVDS connector by black tape and EVA washers. Black tape LVDS Cable Remove the eight screws by Torque B and remove the power board and main board. Note: Magnetism ring should be laid at the right of power board...
  • Page 26 Dell E156FPc ground Screw AC ground line as the figure. Note: The green line can’t be pressed under the power board. Note: The pins can’t gore the blue and purple lines. The end...

  • Page 27: Schematic Diagram

    Dell E156FPc 7. Schematic Diagram 7.1 Main Board C448 C447 C439 0.1uF/16V SPI_3V3 D402 VGA_5V +3.3V_VDD D403 D404 D405 SPI_3V3 BAV99 BAV99 BAV99 (10 mil, ┰キ︽絬) FB410 VGA_5V 0.047uF R434 C432 RED+ 　 60 OHM 1/16W 0.047uF D407 R441 C436...
  • Page 28 Dell E156FPc 3.3V_PVDD 3.3V_AVDD 3.3V_LAVDD 3.3V_DVDD 1.8V_DVDD 1.8V_AVDD +3.3V_VDD 3.3V_DVDD +1.8V_VDD 1.8V_AVDD FB401 C402 C403 C404 C405 C406 C407 FB404 C410 C411 C412 C413 C414 120OHM 120OHM C409 C401 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 22uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V 0.1uF/16V...
  • Page 29 Dell E156FPc +3.3V_VDD +3.3V_VDD R457 R458 　 　 1/16W CN403 1/16W CONN 　 R459 47K 1/16W R460 　 LED_O LED_G Q401 Q403 1/16W LED_G LED_O (3) PMBS3904 PMBS3904 LED_GREEN LED_ORANGE KEY_AUTO 　 　 KEY_MENU R461 1/16W R462 1/16W KEY_RIGHT 　...

  • Page 30: Panel Interface

    Dell E156FPc LVDS_O[0..9] CN101 LVDS_O0 LVDS_O0 RXO0- RXO0+ LVDS_O1 LVDS_O1 LVDS_O2 RXO1- RXO1+ LVDS_O3 CN102 LVDS_O2 LVDS_O4 RXO2- RXO2+ LVDS_O5 LVDS_O3 LVDS_O6 RXOC- RXOC+ LVDS_O7 RXO0+ LVDS_O1 LVDS_O4 LVDS_O8 RXO3- RXO3+ LVDS_O9 RXO0- LVDS_O0 LVDS_O5 LVDS_E0 RXE0- RXE0+ LVDS_E1 RXO1+...
  • Page 31 Dell E156FPc +12V CN701 ON_OFF 　 R705 4.7K 1/16W PBIAS D704 +3.3V_VDD VCC12V VCC12V FB701 SR24 VCC5V VCC5V U701 AIC1084-33PM VOUT CON402(PITCH 2.00) C707 C706 C708 C702 C703 C701 C704 22uF/16V 0.1uF/16V 0.1uF/16V R708 　 1/16W R710 　 1/16W R707...

  • Page 32: Power Board

    Dell E156FPc 7.2 Power Board R921 C921 　 1/2W 0.001uF/500V DB901 KBP206G D921 FMB29L T901 L903 F902 　 1/8W +12V R908 C923 C931 C925 　 R903 R906 C905 100K 1000uF/25V 1000uF/25V 470uF/25V ZD903 5.1K 　 1/8W 0.0015uF/2KV R922 C922 PTZ7.5B 　...
  • Page 33 Dell E156FPc L201 +12V Q202 Q203 120UH R221 R222 R223 R224 CN201 　 　 　 　 C201 DTA144WKA R201 IRF5305S 2.4K 1/4W 2.4K 1/4W 2.4K 1/4W 2.4K 1/4W CONN 　 0.1uF/25V C203 C204 3.9K 1/10W PT201 ZD201 Q201 C202 470uF/25V...

  • Page 34: Layout

    Dell E156FPc 8. PCB Layout 8.1 Main Board...
  • Page 35 Dell E156FPc...

  • Page 36: Power Board

    Dell E156FPc 8.2 Inverter/Power Board...
  • Page 37 Dell E156FPc...
  • Page 38 Dell E156FPc...

  • Page 39: Key Board

    Dell E156FPc 8.3 Key Board 9. Maintainability 9.1 Equipments and Tools Requirement 1. Voltage meter 2. Oscilloscope 3. Pattern Generator 4. LCD Color Analyzer 5. Service Manual 6. User Manual...

  • Page 40: Trouble Shooting

    Dell E156FPc 9.2 Trouble shooting 9.2.1 Main Board No display Check main board Power; is there DC level output? Check U701 pin 2= 3.3V? U702 Measured CN701 pin5/6 = 12 V? pin 2= 1.8V? Is there any shortage or cold...
  • Page 41 Dell E156FPc Panel Power Circuit Check the PPWR panel power relative circuit, Q704, Q706; in normal operation, Check C101 should have response from When LED =green, V-R725 should =5V 0V to 5V when we switch the power If PPWR no-response when the power switch...
  • Page 42 Dell E156FPc U401-data Output Check GM2621 (U401) Replace GM2621 (U401) or Signal output (PIN 7 -16, PIN 31 - 40) replace Main board. Is the waveform ok? If Main Board being replaced, please Replace panel do the DDC – content reprogrammed,...
  • Page 43 Dell E156FPc 9.2.2 Inverter/Power Board No Power Check to CN701 Pin2=12V Check Interface board Check AC line volt 110V or 220V Check AC line Check the voltage of C904(+) Check F901, bridge rectified circuit Check start voltage for the pin8 of IC901...
  • Page 44 Dell E156FPc No Backlight Check C201 (+) =12V Check F902 Check ON/OFF signal Check Interface board Check IC201 pin9=12V ? Change Q201 or Q202 Check the pin1 of IC201 have saw tooth wave Change IC201 Check D201 (-) have the output of square wave at short time.
  • Page 45 Dell E156FPc 9.2.3 Key Board OSD is unstable or not working Is Keypad board connecting normally? Connect Keypad Board Is Button Switch normally? Replace Button Switch Is Keypad board normally? Replace Keypad Board Check main board...

  • Page 46: White Balance Adjustment

    Dell E156FPc 10.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 K colors, MEM. Channel 4 to 9300 K colors, MEM.

  • Page 47: Edid Content

    Dell E156FPc 21. Repeat above procedure (item 5,6,7) until chroma 7120 RGB value meet the tolerance =100±2 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.

  • Page 48: Isp User Manual

    Dell E156FPc 12. ISP (In System Program) User Manual (take E153FP for example) 12.1 Connect ISP Writer preparation action Connect RXD and TXD of PC to RXD (P3.0) and TXD (P3.1) of CPU through RS-232. a. There are two ways to entering Reboot Mode. The settings for Reboot Mode is as follow Both P2.6 P2.7 are LOW and RESET pin is HIGHT.

  • Page 49: To Use Isp Writer

    Dell E156FPc 12.2 To Use ISP Writer Press the “–“ key at front bezel and plug the AC power cord in, then the MCU enter ISP mode; a. You will enter the window as follow after executing the ispwriter.exe file.
  • Page 50 Dell E156FPc b. Click the “Select Chip” button, and choose the type you will program.
  • Page 51 Dell E156FPc c. Click the “Select Bank0” button and selecting a file which a binary Format required.
  • Page 52 Dell E156FPc d. Select the communication Setting: Port Name e. Click the “ConNect” button.

  • Page 53: Executing Isp

    Dell E156FPc f. Click “Program all” to start programming. 12.3. Executing ISP a. “Program All” button that will execute erase and program and verify. Then you can get the window as follow, and click “OK” to complete ISP process. b. Complete the ISP process, click“exit LD”button to reset monitor.

  • Page 54: Check List

    Dell E156FPc 13.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=283±28, y=297±28, Y = 180 ±10 cd/m 6500 parameter is x =313±28, y=329±28, Y = 180 ±10 cd/m...
  • Page 55 Dell E156FPc 7. Select Exit to the upper menu after completing the adjustment. Then press POWER OFF to exit and save 3) Steps for writing DDC： 1. Employ PC, and connect the DDC-writing instrument and the instrument that is ready for writing into DDC to the power of 12V.
  • Page 56 Dell E156FPc Notes: 1. Make sure the system time of PC is in accordance with the real time before writing. 2. The schematic picture is just as an example for description; the exact content of the DDC is dependent on the serial number of the BARCORD of this model.

  • Page 57: Bom List

    Dell E156FPc 14. BOM List Part NO Description Quantity Unit Remark CBPC560KCDDLP CONVERSION BOARD For CPT panel CBPC560KGDDLP CONVERSION BOARD For LPL panel PWPC1521CPD2P POWER BOARD For CPT panel PWPC1521LGD2P POWER BOARD For LPL panel 12G6105 1 PORON FOR PANEL...
  • Page 58 Dell E156FPc 44G3586700 1A CARTON 44G3586BRO 1 PAPER BLOCK 44G3586BRO 2 PAPER BLOCK 45G 88606 8 PE BAG FOR BASE 45G 88607DE8 PE BAG 1186 SMALL TAPE 52G6020 2DE8 PROTECT FILM 52G6022 1500 SMALL TAPE 52G6025 11845 MYLAR FOR POWER BOARD...
  • Page 59 Dell E156FPc CN701 33G8027 12 WAFER 2*6P 2.0MM R/A X401 93G 22 53 CRYSTAL 14.318MHzHC-49U 715G1565 1 MAIN BOARD C102 65G0603104 12 CER2 0603 X7R 16V 100N C402 65G0603104 12 CER2 0603 X7R 16V 100N C403 65G0603104 12 CER2 0603 X7R 16V 100N...
  • Page 60 Dell E156FPc C445 65G0603104 12 CER2 0603 X7R 16V 100N C446 65G0603104 12 CER2 0603 X7R 16V 100N C454 65G0603104 32 CHIP 0.1UF 50V X7R C455 65G0603104 32 CHIP 0.1UF 50V X7R C456 65G0603104 32 CHIP 0.1UF 50V X7R C457 65G0603104 32 CHIP 0.1UF 50V X7R...
  • Page 61 Dell E156FPc Q704 57G 763 1A AP2305N Q706 57G 417 4 PMBS3904/PHILIPS-SMT(04 R101 61L0603472 RST SM 0603 RC0603 4K7 R402 61L0603249 0F CHIP 249OHM 1/16W 1% R406 61L0603472 RST SM 0603 RC0603 4K7 R407 61L0603472 RST SM 0603 RC0603 4K7...
  • Page 62 Dell E156FPc R452 61L0603472 RST SM 0603 RC0603 4K7 R453 61L0603221 RST SM 0603 RC0603 220R R454 61L0603221 RST SM 0603 RC0603 220R R455 61L0603221 RST SM 0603 RC0603 220R R457 61L0603101 RST SM 0603 RC0603 100R R458 61L0603101 RST SM 0603 RC0603 100R...
  • Page 63 Dell E156FPc 89G176S 8 5 FFC CABLE LED01 81G 14501 KT CHIP LED SW01 77G 605 1 AL GP SMD SWITCH SW02 77G 605 1 AL GP SMD SWITCH SW03 77G 605 1 AL GP SMD SWITCH SW04 77G 605 1 AL GP...
  • Page 64 Dell E156FPc L902 73G 174 65 LS LINE FILTER BY LISHIN L903 73G 253 91 H CHOKE COIL L904 73G 253 91 H CHOKE COIL NR901 61G 58080 WT 8 OHM NCT PT201 80GL15T 22 YS X'FMR YSTDA200101G Q203 57G 763 12...
  • Page 65 Dell E156FPc J920 61L1206000 RST SM 1206 JUMP MAX 0R Q201 57G 760 5 DTC144WKA BY ROHM SMT Q202 57G 760 4 DTA144WKA BY ROHM SMT Q204 57G 417 4 PMBS3904/PHILIPS-SMT(04 Q205 57G 417 6 PMBS3906/PHILIPS-SMT(06 R201 61L0805240 1F CHIPR 2.4KOHM +-1% 1/8W...
  • Page 66 Dell E156FPc R919 61L0805203 CHIPR 20KOHM +-5% 1/8W R924 61L0805102 CHIPR 1K OHM +-5% 1/8W R925 61L0805000 CHIP O OHM 1/8W R929 61L0805330 2F CHIP 33KOHM 1/8W 1% R930 61L0805360 1F CHIP 3.6KOHM 1/8W 1% R931 61L0805102 CHIPR 1K OHM +-5% 1/8W...
  • Page 67 Dell E156FPc M1G1730 8128 SCREW M3x8 Q901 57G 600 35 STP8NK80ZFP 90G6084 1 HEAT SINK M1G1730 8128 SCREW M3x8 D921 93G 60239 FME-210B T0-220 90G 410 2 HEAT SINK 87G 501 14 RF AC SOCKET 95G 900595 WIRE 95G8021 3 11...

  • Page 68: Definition Of Pixel Defects

    Dell E156FPc 15. Definition of Pixel Defects 15.1CLAA150XP01...

  • Page 69: Lm150X08

    Dell E156FPc 15.2 LM150X08 15.2.1 Dot Defect 15.2.1.1 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...
  • Page 70 Dell E156FPc - Total amount of Dark dot ---------------------- 4 Max - Minimum distance of Dark dots --------------- 15mm 15.2.1.3. Total amount of Dot Defects -------------------- 4 Max (Combination) Note) a. Every dot herein means Sub-Pixel (Each Red, Green, or Blue Color) b.

Table of Contents

Save PDF