Samsung P2270HD Service Manual
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Samsung P2270HD Service Manual

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SERVICE
TFT-LCD Monitor
P2270HD / P2370HD
Refer to the service manual in the GSPN (see the rear cover) for the more information.
All manuals and user guides at all-guides.com
LCD-Monitor
Chassis
Model
: LEM22DS / LEM23DS
: P2270HD / P2370HD
Manual
Contents
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram

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Summary of Contents for Samsung P2270HD

  • Page 1 All manuals and user guides at all-guides.com LCD-Monitor Chassis : LEM22DS / LEM23DS Model : P2270HD / P2370HD 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 P2270HD / P2370HD Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    4-9. White Balance - Calibration ..................4-16 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 (P2270HD) ..................... 5-1 5-2. Parts List (P2270HD) ...................... 5-3 5-3. Exploded View (P2370HD) ..................... 5-6 5-2. Parts List (P2370HD) ..........................
  • Page 3 All manuals and user guides at all-guides.com GSPN (Global Service Partner Network) Area Web Site North America http://service.samsungportal.com Latin America http://latin.samsungportal.com http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com 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. P/N: BN82-00622A-00...

  • Page 4: Precautions

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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.

  • Page 6: Installation Precautions

    All manuals and user guides at all-guides.com 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.
  • Page 7 All manuals and user guides at all-guides.com 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 P2270HD P2370HD LCD Panel TFT-LCD Panel, RGB Vertical stripe, TFT-LCD Panel, RGB Vertical stripe, normally White, 22-Inch viewable, normally White, 23-Inch viewable, 0.24825(H) X 0.24825(V)mm Pixel Pitch...
  • Page 9 All manuals and user guides at all-guides.com 2. Product specifications Specifications Item Description Model P2270HD P2370HD 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...

  • Page 10: Spec Comparison To The Old Models

    All manuals and user guides at all-guides.com 2. Product specifications 2-2. Spec Comparison to the Old Models Ecofit-MFM CREAM-MFM Model P2270HD / P2370HD 2333HD Design Screen Size 22” / 23” 23” Resolution 1920X1080 (FHD) 60Hz 1920X1080 (FHD) 60Hz Brightness 300cd/m2...

  • Page 11: Accessories

    Ccde. No Remark Remote Control & BN59-00865A Batteries (AAA x 2) Power Cord 3903-000042 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

    All manuals and user guides at all-guides.com 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.
  • Page 13 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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.
  • Page 15 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...
  • Page 19 All manuals and user guides at all-guides.com 4. Troubleshooting 4-2-2. Waveforms ① ② ③...

  • Page 20: Pc (Analog) No Screen

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 4. Troubleshooting 4-3-1. Circuit diagrams and waveforms (Analog) when no screen is displayed on the monitor...
  • Page 22 All manuals and user guides at all-guides.com 4. Troubleshooting 4-3-2. Waveforms ④ ⑤...

  • Page 23: Dvi No Screen

    All manuals and user guides at all-guides.com 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. Check if the LVDS cable has been properly connected to the LCD panel.
  • Page 24 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 4. Troubleshooting 4-5-1. Circuit diagrams and waveforms (HDMI No Screen) when no screen is displayed on the monitor 4-11...
  • Page 27 All manuals and user guides at all-guides.com 4. Troubleshooting 4-5-2. Waveforms ⑧ ⑨ 4-12...

  • Page 28: Faults And Corrective Actions

    All manuals and user guides at all-guides.com 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...

  • Page 29: Adjustment

    All manuals and user guides at all-guides.com 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.
  • 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

    All manuals and user guides at all-guides.com 4. Troubleshooting 4-9. White Balance - Calibration 4-9-1 White Balance -Calibration 1. Calibration AV 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 ...
  • Page 32 All manuals and user guides at all-guides.com 4. Troubleshooting Method of Color Calibration (AV)  1) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN port 2) Press the Source key to switch to “AV” mode 3) Enter Service mode 4) Select the “Calibration”...

  • Page 33: White Ratio (Balance) Adjustment

    All manuals and user guides at all-guides.com 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.

  • 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 All manuals and user guides at all-guides.com 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.
  • Page 36 All manuals and user guides at all-guides.com 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.
  • Page 37 All manuals and user guides at all-guides.com 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(P2270HD/P2370HD):WT61P8 4-22...
  • Page 38 All manuals and user guides at all-guides.com 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 All manuals and user guides at all-guides.com 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 ->...
  • Page 40  1. Select WinISP Menu 2. Make same setting like picture. 3. Choose Device Type. - ECOFIT-MFM(P2270HD/P2370HD):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 All manuals and user guides at all-guides.com 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

    All manuals and user guides at all-guides.com 5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS23EMDKU/EN Exploded View (P2370HD)

  • Page 43: Parts List (P2370Hd)

    All manuals and user guides at all-guides.com 5. Exploded View & Part List 5-1-1. LS23EMDKU/EN Parts List (P2370HD) Location No. Code No. Description & Specification Q’ty SA/SNA Remark M0006 BN96-11420D ASSY SHIELD P-COVER;LS23EM (MFM),EUROPE, S.N.A M0013 BN96-11419E ASSY COVER P-REAR;ECOFIT 23(MFM),EUROPE, M0014 BN94-01893Y ASSY PCB MAIN;LS23EMDKU/EN...
  • Page 44 All manuals and user guides at all-guides.com 5. Exploded View & Part List 5-2. LS23EMDKU/EN Parts List (P2370HD) Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LS23EMDKU/EN P2370HD,WBJ2/S23D0-LEM,23,LCD-MO,NETHERL M0001 BN90-02252A ASSY COVER FRONT;LS23EM (P2370HD ),MFM...
  • Page 45 M0045 BN92-05345J ASSY ACCESSORY;LS23EMDKU/EN S.N.A T0268 3903-000452 CBF-POWER CORD;DT,EU/KR,CP3,IEC320 C13,2 M0114 BN39-00244G CBF SIGNAL;D-sub cable,15P/15P,20276N,15 T0074 BN59-00865A REMOCON;DLP,CRT,TM940,EUROPE,39,92g BN68-02341B MANUAL FLYER-PCT NOTICE;comm,Samsung,Eng S.N.A M0045 BN96-09352L ASSY ACCESSORY;LS23EMDKU/EN ...3 BH68-00633B MANUAL FLYER-03,WARRANTY CARD;comm,Samsu S.N.A ...3 BH68-70448A CARD-01;TFT LCD,SRC,RUSSIA,S/W,120,W210* S.N.A ...3 T0128 BN39-00061C CBF SIGNAL-STEREO;Mckinley,1,male,1.5m,B...
  • Page 46 Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 BN68-00907F MANUAL FLYER-00,WEE;comm,Samsung,23Lang, S.N.A ...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,10 L S.N.A ...3 BN68-02214B MANUAL FLYER-QSG;P2270HD,SyncMaster,19La S.N.A ...3 BN96-06529A ASSY HOLDER P-WIRE;MCKINLEY,ABS HB,BK23 S.N.A ..4 6902-000336 BAG ZIPPER;LDPE,T0.05,W70,L80,TRP,0.500g S.N.A ..4...

  • Page 47: Wiring Diagram

    All manuals and user guides at all-guides.com 6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board...
  • Page 48 All manuals and user guides at all-guides.com 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)

  • Page 49: Connector Functions

    * When a problem occurs: The No USB Download Operating error may occur. CN5002 Component Audio input terminal. * When a problem occurs: The No Speaker Output error may occur. CN3002 Headphone output terminal. 6-4. Cables LVDS 30P FFC cable Code P2270HD : BN96-08740H P2370HD : BN96-08740G Photo...
  • Page 50 All manuals and user guides at all-guides.com 6. Wiring Diagram Memo...

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