Samsung P2470HD Service Manual
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Samsung P2470HD Service Manual

Chassis : lem24ds
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SERVICE
TFT-LCD Monitor
P2470HD
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LEM24DS
Model
: P2470HD
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Contents

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Summary of Contents for Samsung P2470HD

  • Page 1 LCD-Monitor Chassis : LEM24DS Model : P2470HD SERVICE Manual TFT-LCD Monitor Contents 1. Precautions 2. Product specifications 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram P2470HD Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    4-10. White Ratio (Balance) Adjustment ................4-18 4-11. Servicing Information ....................4-19 5. Exploded View & Part List ..................5-1 5-1. Exploded View (P2470HD) ..................... 5-1 5-2. Parts List (P2470HD) ...................... 5-3 6. Wiring Diagram ......................6-1 6-1. Wiring Diagram - Main Board ..................6-1 6-2.
  • Page 3 Mideast & Africa http://mea.samsungportal.com © 2009 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.

  • Page 4: Precautions

    1. Precautions 1. Precautions 1-1. Safety Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.

  • Page 5: Servicing Precautions

    1. Precautions 1-2. Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.

  • Page 6: Installation Precautions

    1. Precautions 1-4. Installation Precautions For safety reasons, more than two people are required for carrying the product. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.
  • Page 7 1. Precautions Memo...

  • Page 8: Product Specifications

    -The TV utilizes the HDMI system to implement perfect digital sound and picture quality. Specifications Item Description Model P2470HD LCD Panel TFT-LCD Panel, RGB Vertical stripe, normally White, 24-Inch viewable, 0.2768(H) X 0.2768(V) mm Pixel Pitch Scanning Frequency Horizontal : 30 kHz ~ 81 kHz (Automatic)
  • Page 9 2. Product specifications Specifications Item Description Model P2470HD Environmental Operating Temperature: 50˚C ~ 104˚F(10˚C ~ 40˚C) Considerations Operating Humidity : 10% ~ 80% Storage Temperature: -4˚C ~ 113˚C(-20˚C ~ 45˚C) Storage Humidity: 5% ~ 95% Antenna Input 75Ω Sound Characteristic...

  • Page 10: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models Ecofit-MFM CREAM-MFM Model P2470HD 2333HD Design Screen Size 24” 23” Resolution 1920X1080 (FHD) 60Hz 1920X1080 (FHD) 60Hz Brightness 300cd/m2 300cd/m2 Contrast Ratio 1000:1 1000:1 Response Time Viewing Angle Left/Right/Up/Down : 80˚/80˚/80˚/80˚...

  • Page 11: Accessories

    Ccde. No Remark Remote Control & BN59-00865A Batteries (AAA x 2) Power Cord 3903-000452 Stand Body BN96-09628C Stand Base BN96-11315A Samsung Electronics Service center D-Sub Cable BN39-00244G User’s Guide, Monitor Driver, BN59-00910C Natural Color Pro Software Cleaning Cloth BN63-01798B Holder-Cable BN96-06529A...

  • Page 12: Disassembly And Assembly

    3. Disassembly and Assembly 3. Disassembly and Assembly This section describes the disassembly and reassembly sequences for this monitor. Warning: As this monitor has parts that are sensitive to static electricity, be careful when handling them. 3-1. Disassembly Caution: 1. Turn the monitor off before beginning the disassembly process. 2.
  • Page 13 3. Disassembly and Assembly Description Photo Screws 3. Hold the Front-Cover by its corners and push it downwards. In the same manner, push down on the other corners, lift the Rear-Cover, and disassemble it as shown in the picture below.
  • Page 14 3. Disassembly and Assembly Description Photo Screws 4. After disassembling the Rear-Cover, prepare for the internal disassembly as shown in the picture on the right. LVDS LAMP WIRE Function & SPK Wire 5. Remove the LVDS cable. 6. Remove the Lamp wire. 7.
  • Page 15 3. Disassembly and Assembly Description Photo Screws 8. Remove the SPK upwards. 9. Remove the Assy Shield-Cover. Disassemble the PCB inside the Assy. 10. Remove the Holder-Boss from the Assy Front- Cover. Caution : It is difficult disassembling the panel without removing the screws.

  • Page 16: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. First Checklist for Troubleshooting Self-Test Feature Check „ Your monitor provides a self test feature that allows you to check whether your monitor is functioning properly. Turn off both your computer and the monitor. Unplug the video cable from the back of the computer Turn on the monitor.

  • Page 17: No Power

    4. Troubleshooting 4-2. No Power The LED on the front panel of the monitor does not work when the power is connected and the Symptom Power button is pressed. Check if the Power switch on the rear panel of the monitor has been turned on. Check the SMPS fuse and the IP-Board output power.
  • Page 18 4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...
  • Page 19 4. Troubleshooting 4-2-2. Waveforms ① ② ③...

  • Page 20: Pc (Analog) No Screen

    4. Troubleshooting 4-3. PC (ANALOG) No Screen The LED power is on but no picture is displayed on the screen when the D-SUB cable is Symptom connected Even though the LED power turns on, the screen is blank when connecting the VGA cable. Check the D-sub cable connections.
  • Page 21 4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...
  • Page 22 4. Troubleshooting 4-3-2. Waveforms ④ ⑤...

  • Page 23: Dvi No Screen

    4. Troubleshooting 4-4. DVI No Screen The LED power is on but no picture is displayed on the screen when the DVI cable is Symptom connected. Check if the DVI cable has been connected. Major Check if the LVDS cable has been properly connected to the LCD panel. checkpoints Check if the Inverter board has been connected properly to the lamp connector of the LCD panel.
  • Page 24 4. Troubleshooting 4-4-1. Circuit diagrams and waveforms (DVI No Screen) when no screen is displayed on the monitor...

  • Page 25: Hdmi No Screen

    4. Troubleshooting 4-5. HDMI No Screen The LED power turns on but the screen is blank when the HDMI cable is connected. Symptom Check the HDMI cable connections. Check whether the LVDS cable is connected correctly to the panel. Major checkpoints Check whether the lamp connector of the panel is connected correctly to the IP board.
  • Page 26 4. Troubleshooting 4-5-1. Circuit diagrams and waveforms (HDMI No Screen) when no screen is displayed on the monitor 4-11...
  • Page 27 4. Troubleshooting 4-5-2. Waveforms ⑧ ⑨ 4-12...

  • Page 28: Faults And Corrective Actions

    4. Troubleshooting 4-6. Faults and Corrective Actions Fault Photo Symptoms and Corrective Actions Remarks Symptoms: DVI signals are not recognized. * Refer to the Training Manual for information on inputting the DVI DDC. Causes: This fault occurs when the PC does not recognize the mode information because the DVI DDC has not been input to the monitor.

  • Page 29: Adjustment

    4. Troubleshooting 4-7. Adjustment 4-7-1. Service Instruction 1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. 2. Use the specified test equipment or its equivalent. 3. Correct impedance matching is essential. 4.
  • Page 30 - Option - Advanced Factory Reset Type WB Movie Model EPA Standard Tuner ALPS ADJUST Region YC_Delay SAMSUNG SHARPNESS Light Effect Audio Amp PQ Others Local Set Other Color Space Exhibition Mode EEPROM RESET - Expert - ADC/WB N/D ADJ...

  • Page 31: White Balance -Calibration

    4. Troubleshooting 4-9. White Balance - Calibration 4-9-1 White Balance -Calibration 1. Calibration Comp Calibration PC Calibration HDMI Calibration 4-9-2 Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance. Color Calibration „ Adjust spec. 1.
  • Page 32 4. Troubleshooting Method of Color Calibration (Component) „ 1) Apply the 720p Lattice (N0. 6) pattern signal to the Component IN port 2) Press the Source key to switch to “Component” mode 3) Enter Service mode 4) Select the “Calibration” menu 5) Select the “Comp Calibration”...

  • Page 33: White Ratio (Balance) Adjustment

    4. Troubleshooting 4-9-3 White Balance - Adjustment (low light) (hight light) Sub Bright Sub Contrast 3. W/B R offset R gain G offset G gain B offset B gain (W/B adjustment Condition refer next page) 4-10. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).

  • Page 34: Servicing Information

    4-11. Servicing Information 4-11-1 USB Download Method Samsung may offer upgrades for TV’s firmware in the future. Upgrades will be possible by connecting a USB drive to the USB port located on your TV. Insert a USB drive containing the firmware upgrade into the USB port on the rear of the TV.
  • Page 35 4. Troubleshooting 4-12. Software Upgrade 4-12-1. Program Upgrading - MAIN 1. If you select MENU → Support → Software Upgrade on remote control, you’ll see below picture 2. Press ENTER, then you’ll see below picture. Select Yes 3. Micom program is now upgrading as below picture. After Software Upgrade is process by 100%, the monitor is automatically turn off and on.
  • Page 36 4. Troubleshooting 4-12-2. Micom Program Upgrade DDC Manager Connection „ 1. Prepare PC to Upgrade the Program. PC for MCU upgrading Connect to Parallel port 2. Prepare the DDC Manager 3. Connect D-sub cable to Target Monitor TV 4. Power on the Target Monitor TV winDDC_V2-39 Program installed Run winDDC 4-21...
  • Page 37 4. Troubleshooting Main MIcom Upgrade „ 1. Goto installed Program folder (winDDC_V2-39) 2. Run winDDC 3. Select WinISP Menu 4. Make same setting like picture. 5. Choose Flash memory type - ECOFIT-MFM(P2470HD):WT61P8 4-22...
  • Page 38 4. Troubleshooting 6. Load File ( Select file to download) 7. Set Option to load Binary Files 8. Select files (bin file) 9. Click button to load files 10. Select “Flash1” and “Flash2” 4-23...
  • Page 39 4. Troubleshooting 11. Check the OK message (Load) 12. Click Auto Program button 13. If you see OK message (Verify), program download is completed After Upgrading Firmware „ Factory mode 1. Factory remote control (SET POWER ON ) INFO -> Factory 2) Normal Remote control (SET POWER OFF) INFO ->...
  • Page 40 „ 1. Select WinISP Menu 2. Make same setting like picture. 3. Choose Device Type. - ECOFIT-MFM(P2470HD):WT61P8 4. Load File ( Select file to download) 5. Set Option to load Binary Files 6. Select files (hex file) 7. Click button to load files...
  • Page 41 4. Troubleshooting 8. Check the OK message (Load) 9. Click Auto Program button 10. If you see OK message (Verify), program download is completed 4-26...

  • Page 42: Exploded View & Part List

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS24EMDKU/EN - Exploded View (P2470HD)

  • Page 43: Parts List (P2470Hd)

    5. Exploded View & Part List 5-1-1. LS24EMDKU/EN - Parts List (P2470HD) Location No. Code No. Description & Specification Q’ty SA/SNA Remark M0006 BN96-11420K ASSY SHIELD P-COVER;LS24EM (P2470HD),EUR M0013 BN96-12247A ASSY COVER P-REAR;LS24EM(P2470HD),ABS HB M0014 BN96-12470A ASSY PCB P-MAIN;LS24EMDKU/EN,BN94-03179H M0027 BN96-11315A ASSY STAND P-BASE;ECOFIT,ROSE BLACK...
  • Page 44 5. Exploded View & Part List 5-2. LS24EMDKU/EN - Parts List (P2470HD) Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark BN90-02338A ASSY COVER FRONT;LS24EM (P2470HD) BN68-02302A LABEL-MONITOR-POP;ECOFIT-MFM(20/22/23),W T0175 BN96-06823H ASSY SPEAKER P;16ohm,4pin,3W,R:500 / L:5...
  • Page 45 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark CCMM1 BN73-00210A SILICON/RUBBER;UE40B7000WWXXC,SILICON+PO M0251 BN96-08740K ASSY CABLE P;ECOFIT-MFM 24.6,FFC,P1030-A M0014 BN96-12470A ASSY PCB P-MAIN;LS24EMDKU/EN,BN94-03179H ...3 3701-001385 CONNECTOR-DSUB;15P,3R,FEMALE,STRAIGHT,AU ...3 3701-001386 CONNECTOR-DVI;24P,3R,FEMALE,AU ...3 CN906 3707-001081 CONNECTOR-OPTICAL;STRAIGHT,SPDIF ...3 CN906...
  • Page 46 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 U309 1201-000166 IC-OP AMP;LM358,SOP,ST,8P,150MIL,DUAL,10 ..4 T0085 1201-002487 IC-AUDIO AMP;MAX9728A,QFN,12P,3x3mm,DUAL ..4 T0124 1201-002797 IC-POWER AMP;NTP-3200,QFN,56P,8x8mm,DUAL ..4 T0085 1201-002849 IC-AUDIO AMP;DRV603,TSSOP,14P,5x4.4mm,DU ..4 T0087 1203-001815 IC-POSI.FIXED REG.;78M09,TO-252,3P,PLAST ..4 T0087...
  • Page 47 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R509 2007-000170 R-CHIP;1Mohm,5%,1/16W,TP,1005 ..4 R111 2007-000171 R-CHIP;0ohm,5%,1/16W,TP,1005 ..4 HDR17 2007-000172 R-CHIP;10ohm,5%,1/16W,TP,1005 ..4 R338 2007-000173 R-CHIP;22ohm,5%,1/16W,TP,1005 ..4 UR23 2007-000174 R-CHIP;47ohm,5%,1/16W,TP,1005 ..4 2007-000640 R-CHIP;270ohm,1%,1/10W,TP,1608 ..4 R726 2007-000695...
  • Page 48 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 MR38 2011-001093 R-NETWORK;100ohm,5%,1/16W,L,CHIP,8P,TP,3 ..4 ZRN10 2011-001261 R-NETWORK;33ohm,5%,1/16W,L,CHIP,8P,TP,2..4 DAR09 2011-001262 R-NETWORK;22ohm,5%,1/16W,L,CHIP,8P,TP,2..4 2203-000125 C-CER,CHIP;1.2nF,10%,50V,X7R,TP,1608,- ..4 AD480 2203-000181 C-CER,CHIP;100nF,+80-20%,25V,Y5V,TP,2012 ..4 AC14 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 AD480 2203-000221...
  • Page 49 ..4 3701-001591 CONNECTOR-HDMI;19P,2ROW,FEMALE,SMD-S,AU ...3 T0066 BP62-00017A HEAT SINK-ES;SP-50L2HX,A6063S,T2.0,26.2, ...3 T0066 BP62-00047A HEAT SINK-ES;DLP,A6063S,T2.5,13,13,TAPE ...3 3709-001551 CONNECTOR-CARD SLOT;68P,1.27mm,DIP,AU50U M0006 BN96-11420K ASSY SHIELD P-COVER;LS24EM (P2470HD),EUR ...3 T0139 6502-000135 CABLE CLAMP;DAWS-2NA,ID10,NTR,NYLON66 ...3 T0069 AA63-00099E SPACER-FELT;L6,FELT,10,BLK,T0.5,20 ...3 BN61-02429C STUD-PEM;PNB,M2.8,D7,L10,ZPC(SIL),SUM24L ...3 BN61-02429D STUD-PEM;PNB,M2.8,D7,L20,ZPC(SIL),SUM24L ...3 T0073 BN63-03912A GASKET-EMI;50P9, Conductive Fabric,5mm,1...
  • Page 50 BN63-01798B CLOTH-CLEAN;cloth,180,200,sea blue,ToC ...3 BN68-00907D MANUAL FLYER-WEEE BATTERY;COMM,SAMSUNG,2 ...3 BN68-00907F MANUAL FLYER-00,WEE;comm,Samsung,23Lang, ...3 BN68-01925F MANUAL FLYER-WARRANTY CARD;comm,Samsung, ...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,10 L ...3 BN68-02214B MANUAL FLYER-01,QSG;P2270HD,SyncMaster,1 ...3 T0010 BN96-06529A ASSY HOLDER P-WIRE;MCKINLEY,ABS HB,BK23 ..4 6902-000336 BAG ZIPPER;LDPE,T0.05,W70,L80,TRP,0.500g ..4 M0114 BN61-03555A HOLDER-WIRE;MCKINLEY,ABS HB,BK26...
  • Page 51 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark T0527 BN68-00129A LABEL SHIPPING-00;LABEL SHIPPING,ART-PAP BN69-02114A PAD PACKING-EDGE;CB,B800,W200,L2200,YEL, BN69-03565A PAD-PLATE;P230S,CB,SW,YEL,W1300,D800,800 T0603 BN69-03644A PALLET;LE26A33,WOOD-OTH,W850,L1300,SEH BN69-03934A WRAP STRETCH FILM;All,HDPE,0.012,500,300 BN69-04161A CUSHION-01,SET;P2470HD,EPS,18.2/l,196g BN81-02321A BAG-AIR;LIGHT FLEX PLASTIK,PE WHITE,L120 HA83-00057B LP-TAPE-CELLULOSE;,HA02-030010,T0,046,W7 1.59 5-10...

  • Page 52: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board...
  • Page 53 6. Wiring Diagram 6-2. Wiring Diagram - Main Board LVDS Connector (Connect with panel) Power Connector Connect with IP board PC Analog PC Stereo Headphone RF ANT. HDMI Function Connector 8P (Connect with function Assy) Digital Audio Output (Optical) USB (Program Update) Speaker R (Red) Speaker L (Yellow) Audio R/ L, Component...

  • Page 54: Connector Functions

    6. Wiring Diagram 6-3. Connector Functions Connector Functions CN1005 Transmits LVDS signals from the Main board to the panel * When a problem occurs: The Blank Screen and No Power errors may occur. CN8003 VGA signal input terminal * When a problem occurs: The No RGB Output error may occur. CN901 DVI signal input terminal * When a problem occurs: The No DVI Output error may occur.
  • Page 55 6. Wiring Diagram Memo...

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