Samsung P2070H Service Manual
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Samsung P2070H Service Manual

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SERVICE
TFT-LCD Monitor
P2070H / P2270H
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LEF20VS
LEF22VS
Model
: P2070H
P2270H
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Contens

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Summary of Contents for Samsung P2070H

  • Page 1: Service Manual

    Contens 1. Precautions 2. Product specifications 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram P2070H / P2270H Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    4-6. Error Examples and Actions ..................4-13 4-7. Adjustment ........................4-14 5. Exploded View & Part List 5-1. Exploded View (P2070H) ....................5-1 5-2. Parts List (P2070H) ......................5-3 5-3. Exploded View (P2270H) ....................5-6 5-4. Parts List (P2270H) ......................5-8 6.
  • 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: Disassembly

    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 5 3. Disassembly and Assembly Description Photo Screws 3. Separate the other side in the same way. 4. Lift the REAR-COVER up to separate it. 5. Remove the FFC cable, the LED driver wire, the function wire and the two hex-head screws, and separate the DVI shield.
  • Page 6 3. Disassembly and Assembly Description Photo Screws 7. Separate the inverter and the main PBA from the PBA bracket. P2070H P2270H ※The assembly is in the reverse order of disassembly.
  • Page 7 3. Disassembly and Assembly Memo...

  • Page 8: Exploded View

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS22EFVKU/XF - Exploded View...
  • Page 9 5. Exploded View & Part List 5-1-1. LS22EFVKU/XF Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark M0006 BN96-11906C ASSY SHIELD P-COVER;P2370H,SECC,T0.8 M0013 BN96-12301A ASSY COVER P-REAR;Ecofit21.6,BLACK,HB,BK M0014 BN94-03157A ASSY PCB MAIN;LS22EFVKUU/EN M0020 BN96-10522B ASSY BOARD P;Ecofit,Function Assy,With H M0027 BN96-11315A ASSY STAND P-BASE;ECOFIT,ROSE BLACK...

  • Page 10: Ls22Efvku/Xf Parts List

    5. Exploded View & Part List 5-2. LS22EFVKU/XF Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark BN90-02324A ASSY COVER FRONT;P2270H,ECOFIT ASSY COVER T0003 BN96-09622J P-FRONT;LS22EF,PMMA+ABS,ROSE ...3 W392 6003-000282 SCREW-TAPTYPE;BH,+,-,B,M3,L8,ZPC(BLK),SW...
  • Page 11 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark M0215 BN07-00622A LCD-PANEL;M216H1-L01,CM21H11,6bit Hi-FRC BN91-03699B ASSY SHIELD;P2270H,ECOFIT CIS1 BN74-00021A TAPE-FILAMENT;Filament tape,clear,#8915, 0.12 M0017 BN91-04511A ASSY CHASSIS;LS22EFVKUU/EN SCREW-TAPTYPE;PWH,+,- M0081 6003-001023 ,B,M3,L10,ZPC(WHT), M0215 BN44-00308B INVERTER;Ecofit21.5,23"W,GH329B,60khz,14 ...3 M0014 BN94-03208U...
  • Page 12 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..5 BN81-02952A A/S-CHIP-RESISTOR;2007-000803 ..5 BN81-02954A A/S-CHIP-RESISTOR;2007-000633 ..5 BN81-02959A A/S-CHIP-RESISTOR;2007-000336 ..5 BN81-04507A A/S-R-CHIP;2007-000075 ..5 BN81-04508A A/S-R-CHIP;2007-000103 ..5 BN81-04509A A/S-R-CHIP;2007-000119 ..5 BN81-04510A A/S-R-CHIP;2007-000402 ..5 BN81-04511A A/S-R-CHIP;2007-000726 ..5 BN81-04512A...
  • Page 13 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8,SOP,8P,5x4mm ..4 IC112 1103-001310 IC-EEPROM;24LC02B,256X8BIT,SOIC,8P,3.91X ..4 IC112 1103-001410 IC-EEPROM;S-24CS08AFJ-TB-1GE,8Kbit,1Kx8, ..4 T0085 1201-002271 IC-AUDIO AMP;APA2068,SOP,16P,150MIL,DUAL ..4 1202-000104 IC-VOLTAGE COMP.;393,SOP,8P,150MIL,DUAL, ..4 T0087 1203-002835 IC-POSI.FIXED REG.;KIA7805AF,DPAK,3P,6.6 ..4...
  • Page 14 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 AAC14 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,TP,1608 ..4 6MC22 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..4 AC28 2203-001607 C-CER,CHIP;0.22nF,5%,50V,NP0,1608 ..4 C178 2203-002793 C-CER,CHIP;1000nF,+80-20%,25V,Y5V,2012 ..4 DC108 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C100 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 AD480...
  • Page 15 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark CCM1 BN68-01570A LABEL RATING;ALL,SS,PE,T0.05,90,45,Dark BN92-05387A ASSY P/MATERIAL;LS22EFVKUU/EN T0214 0203-001595 TAPE-OPP MASKING;OPP-2,0.075,75,800M,CLR 6902-000061 BAG AIR;LDPE,T0.2,W500,L1000,TRP,370.000 6902-000379 BAG AIR;LDPE,T0.2,W1000,L1800,TRP,1260.0 6902-000604 BAG WRAPPING;LDPE,T0.02,W500,L10000,TRP, 6902-000609 BAG ROLL;LDPE,T0.05,W2400,L1000,TRP,30.0 0.02 T0524 6902-001067...
  • Page 16 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 BN81-03062A A/S-INSULATION-SHEET;MB75-40001A ..4 BN81-03063A A/S-INSULATOR-RING;MB75-40012A ..4 BN81-04115A A/S-DIODE-SCH;0404-000016 ..4 BN81-04116A A/S-DIODE-UF;0409-000010 ..4 BN81-04117A A/S-FET-N MOS;0505-000010 ..4 BN81-04120A A/S-SCR;1401-000001 ..4 BN81-04121A A/S-VARISTOR;1405-000005 ..4 BN81-04122A A/S-RESISTOR-MOR;2001-100003 ..4...
  • Page 17 BN73-00077A ...3 BN68-02304C LABEL-STICKER;WW,T0.05,50,10,LAVERDER 19 M0045 BN96-12249V ASSY ACCESSORY;LS22EFVKU/XF ...3 T0268 3903-000455 CBF-POWER CORD;DT,CN,IP3/Y(A),IEC320 C13 ...3 T0524 6902-000110 BAG PE;LDPE,T0.05,W250,L400,TRP,28,2,9.2 LABEL-PASSING;SAMSUNG ALL,ART ...3 T0527 AA68-00764A PAPER,CLR, ...3 M9889 BN63-02368B CLOTH-CLEAN;cloth,120,160,sea blue,ToC ...3 T0527 BN68-00513A LABEL-E,PASS;ALL MODEL,YUPO(110G),50X15, MANUAL FLYER-WARRANTY CARD;Chinese,Art ...3...

  • Page 18: 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 19: 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 20: 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 21 1. Precautions Memo...

  • Page 22: Product Specifications

    P2070H / P2270H Feature Panel Specification : - P2070H : 250cd/m2 , 5ms (G to G 2ms), CR 1000:1 (DCR 50000:1), 170 / 160 ሪ - P2270H : 300cd/m2 , 5ms (G to G 2ms), CR 1000:1 (DCR 70000:1), 170 / 160 DPMS : - P2070H : <1.0W (Typical), <1.2W (Max)
  • Page 23 2. Product specifications Specifications Item Description Models Sync Master P2070H Sync Master P2270H Environmental Considerations Operating Temperature: 10˚C ~ 40˚C(50˚F ~ 104˚F) Operating Humidity : 10% ~ 80% , non-condensing Operating Temperature: -20˚C ~ 45˚C(-4˚F ~ 113˚F) Operating Humidity: 5% ~ 95% , non-condensing...

  • Page 24: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models Model P2070H / P2270H T (T240) Design 20” 250cd/m2 Brightness 300cd/m2 22” 300cd/m2 Contrast 1000:1 1000:1 20” 50,000:1 20,000:1 22” 70,000:1 Response Time 5ms ( W to B) & 2ms (G to G)

  • Page 25: Accessories

    2. Product specifications 2-3. Accessories Product Description Code. No Remark Quick Setup Guide BN68-02390A Warranty Card P2070H : BN68-02001A (Not available in all locations) P2270H : BN68-01925F User’s Guide, Monitor Driver, BN59-00967A Natural Color software, MagicTune™ software Stand Body BN96-09628C...

  • Page 26: Accessories (Sold Separately)

    2. Product specifications 2-4. Accessories (Sold separately) Product Description Ccde. No Remark DVI Cable BN39-00246L 1,500mm(1.5M) Samsung Electronics Service center HDMI Cable MD39-00116A...
  • Page 27 2. Product specifications Memo...

  • Page 28: Troubleshooting

    • When the raster does not appear: Function PBA, Main PBA, Inverter, Adapter • When 5V is generated but a blank screen is displayed : Main PBA • When 12V (P2070H) / 14V (P2270H) is not Generated : Adapter “Press the MENU button and hold down the, “...

  • Page 29: When The Power Does Not Turn On

    4. Troubleshooting 4-2. When the power does Not Turn on - When turning on the power button after connecting Adaptor, the LED at the front of the monitor Symptom does not operate. - Check the Adaptor power fuse and the Adaptor output power. - Check the connections for Adaptor and the Main board inside the monitor.
  • Page 30 4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...

  • Page 31: When The Screen Is Blank (Analog)

    4. Troubleshooting 4-3. When the screen is blank (Analog) - Even though the LED power turns on, the screen is blank when connecting the DVI-I to D-sub Symptom cable. - Check the DVI-I to D-sub cable connections. Major checkpoints - Check whether the LVDS(FFC) cable is connected correctly to the panel. - Check whether the lamp connector of the panel is connected correctly to the Inverter.
  • Page 32 4. Troubleshooting 4-3-1. When a blank screen is displayed (Analog)
  • Page 33 4. Troubleshooting 4-3-2. Waveforms when no screen is displayed (Analog) ① ③ ④...

  • Page 34: When A Blank Screen Is Displayed (Digital)

    4. Troubleshooting 4-4. When a blank screen is displayed (Digital) Symptom - Even though the LED power turns on, the screen is blank when connecting the DVI cable. - Check the DVI cable connections. Major checkpoints - Check whether the LVDS(FFC) cable is connected correctly to the panel. - Check whether the lamp connector of the panel is connected correctly to the Inverter.
  • Page 35 4. Troubleshooting 4-4-1. Circuit diagrams when a blank screen is displayed (Digital)
  • Page 36 4. Troubleshooting 4-4-2. Waveforms when a blank screen is displayed (Digital)

  • Page 37: When A Blank Screen Is Displayed (Hdmi)

    4. Troubleshooting 4-5. When a blank screen is displayed (HDMI) Symptom - Even though the LED power turns on, the screen is blank when connecting the HDMI cable. - Check the HDMI cable connections. Major checkpoints - Check whether the LVDS(FFC) cable is connected correctly to the panel. - Check whether the lamp connector of the panel is connected correctly to the Inverter.
  • Page 38 4. Troubleshooting 4-5-1. Circuit diagrams when a blank screen is displayed (HDMI) 4-11...
  • Page 39 4. Troubleshooting 4-5-2. Waveforms when a blank screen is displayed (HDMI) 4-12...

  • Page 40: Error Examples And Actions

    4. Troubleshooting 4-6. Error Examples and Actions Error Appearance Symptoms and Actions Remarks Symptom: DVI signals are not recognized. *On how to input DDC, refer to the training manual. Cause: This error occurs because the PC cannot recognize the mode information since the DVI DDC is not input to the monitor.

  • Page 41: Adjustment

    1) Use when updating the AD board code. 2) Download the WinDDC program, DDC Input program, and Hex and DDC files appropriate to the model through the Quality Control department of Samsung Electronics. Install the jig and input the data, as shown in the figure. Monitor needing...
  • Page 42 4. Troubleshooting 4-7-2. Service Function Specifications Checking the Code Version „ 1. Check the MCU code version and checksum after entering SVC Mode. 2. Entering SVC Mode - Adjust the Brightness and Contrast values to 0. - Hold down the Enter button for five (5) seconds. - The SVC Function OSD is displayed.
  • Page 43 4. Troubleshooting When replacing the panel „ After replacing the panel, select the Panel Ch. No. item and press the MENU key for five seconds. The Panel Ch. No. will then increment by one and the panel’s time information will be set to 0. At the same time, the panel cycle will be set to 0.
  • Page 44 DDC MANAGER Connect to MAIN board CN102 - Connect DDC Manager Jig to P2070H / P2270H with DVI-I to D-Sub cable and DVI cable. - Execute Winddc.exe Program on PC. - Click the Winddc icon. 1. Click the Open [F5] icon 2.
  • Page 45 4. Troubleshooting 5. Enter the serial number and then press the Enter button. If you using old version. -> When inputting digital data after inputting analog data, repeat steps 2 to 5. 4-18...
  • Page 46 4. Troubleshooting Inputting the MCU Data „ 1) Check the following options. - Manufacture : MSTAR - Device Type :TSUMxx - Communication Por t: DSUB15(Analog) - External Memory : PMC25LV020 2) Click the LoadFile button, select an MCU code file, and then click the Open [O] button. 4-19...
  • Page 47 4. Troubleshooting 3) Click the Auto Program button. 4) When programming and verification are complete, hard power the monitor off and then on again. 4-20...
  • Page 48 4. Troubleshooting Inputting the Code (HDCP) „ 1. Run the service.exe file. 2. Click the HDCP button. 4-21...
  • Page 49 4. Troubleshooting 3. Click the HDCP Write button and select MStar_HDCPKEY. 4. Inputting the HDCP key is completed. 4-22...

  • Page 50: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board...

  • Page 51: Wiring Diagram - Ip Board

    6. Wiring Diagram 6-2. Wiring Diagram - IP Board LVDS Connector (Connect to Panel) CN400 LVDS X201 IC200 Scaler IC101 TMDS Switch EEPROM EEPROM CN604 CN700 CN102 CN703 DVI - I HDMI Audio Adaptor Jack Jack...

  • Page 52: Connector Functions

    * Upon occurrence of a fault: No Digital Output (No TMDS output) error may occur. CN700 Supplies 14V (12V for P2070H) from the adapter to the main board. * Upon occurrence of a fault: No Power and Blank Screen errors may occur.
  • Page 53 6. Wiring Diagram Memo...

This manual is also suitable for:

P2270hP2270h lef20vsLef22vs

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