Samsung P2250(G) Service Manual
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Samsung P2250(G) Service Manual

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SERVICE
TFT-LCD Monitor
P2050(G) / P2250(G) / P2350(G)
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LLR20ZS
LLR22ZS
LLR23ZS
Model
: P2050(G)
P2250(G)
P2350(G)
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 P2250(G)

  • Page 1 LCD-Monitor Chassis : LLR20ZS LLR22ZS LLR23ZS Model : P2050(G) P2250(G) P2350(G) SERVICE Manual TFT-LCD Monitor Contens 1. Precautions 2. Product specifications 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram P2050(G) / P2250(G) / P2350(G) Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Static Electricity Precautions ..................1-2 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Spec Comparison to the Old Models ................2-2 2-3.
  • Page 3 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: BN82-00607A-00...

  • 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

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model P2050(G) / P2250(G) / P2350(G) Feature Panel Specifications: 300cd/m2, 2ms, CR 1000:1(DC), 170/160(CR>10) � DPMS : <1W � Magic Bright3, Magic Tune, Windows Vista authentication � DC 50,000: 1 applied �...

  • Page 9: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models T220 / T220(G) Model P2050(G) / P2250(G) / P2350(G) T200 / T200(G) Design 1600x900 (P2050) Resolution 1680 x 1050 1920x1080 (P2250/P2350) Input Analog / DVI Digital Analog / DVI Digital Response Time Viewing Angle 170/160(CR>10)

  • Page 10: Accessories

    Quick Setup Guide BN68-01925C Warranty Card BN68-00226R (Not available in all locations) User’s Guide, Monitor Driver, BN96-10917A Natural Color Pro Software Stand Body BN96-10575A Samsung Electronics Service center Stand Base BN96-09629A D-sub Cable BN39-00244G 1,500mm(1.5M) Power Cord 3903-000042 1,830mm(1.8M) Cleaning Cloth...
  • Page 11 2. Product specifications Memo...

  • 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. Turn the monitor over again and separate the rear cover. 4. Remove the Shield-Lamp using the jig. Caution : Take care when doing so as the Shield- Lamp has sharp edges.
  • Page 14 3. Disassembly and Assembly Description Photo Screws 5. Remove the Function, Lamp Wire and LVDS wires and remove the Shield-Cover. Caution : Take care when doing so as the Shield- Lamp has sharp edges. FUNCTION LAMP WIRE LVDS...
  • Page 15 3. Disassembly and Assembly Description Photo Screws 6. Separate the LCD panel. 7. Remove the 4 screws from the points marked in the figure. 8. Remove the 4 screws and separate the Bracket Support. ※The assembly is in the reverse order of disassembly.

  • Page 16: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting Set custom mode as follows before beginning a repair. P2050 P2250 / P2350 Resolution: 1600 x 900 Resolution: 1920 x 1080 V-frequency: 60Hz V-frequency: 60Hz H-frequency: 60kHz H-frequency: 66.7kHz If the screen is blank, check whether the power cord is connected correctly. The circuits to check: •...

  • Page 17: 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 the power cable, the LED at the front of the Symptom monitor does not operate. - When turning on the Power button after connecting the power cable, the LED at the front of the monitor does not operate.
  • Page 18 4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...

  • Page 19: When The Screen Is Blank (Analog)

    4. Troubleshooting 4-3. When the screen is blank (Analog) Symptom - Even though the LED power turns on, the screen is blank when connecting the VGA cable. - Even though the LED power turns on, the screen is blank when connecting the VGA cable. - Check the D-sub cable connections.
  • Page 20 4. Troubleshooting 4-3-1. When a blank screen is displayed (Analog) ② ①...
  • Page 21 4. Troubleshooting 4-3-2. Waveforms when no screen is displayed (Analog)

  • Page 22: 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. - Even though the LED power turns on, the screen is blank when connecting the DVI cable. - Check the DVI cable connections.
  • Page 23 4. Troubleshooting 4-4-1. Circuit diagrams when a blank screen is displayed (Digital)
  • Page 24 4. Troubleshooting 4-4-2. Waveforms when a blank screen is displayed (Digital)

  • Page 25: Error Examples And Actions

    4. Troubleshooting 4-5. 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 26: 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 27 4. Troubleshooting 4-6-2. 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 28 4. Troubleshooting 2. Press the - button to change the setting to On or Off. When replacing the panel  After replacing the panel, move to the Panel item and hold down the Menu button for five (5) seconds. The Ch. No is incremented by 1 and then both the On Time and Cycle are set to 0. This number is incremented by 1.
  • Page 29 4. Troubleshooting Inputting the DDC Data  Use the DDC Manager MTI-2050 version or later. 1) Click the Open [F5] icon. 2) Select a port. 3) Open a DDC file. 4) Select a date and click the OK [Save] button. 5) Click the Next [OK] button.
  • Page 30 4. Troubleshooting Inputting the MCU Data  1) Check the following options. - Manufacture: MSTAR - Device Type:TSUM16_ROM128K_ext_flash - Communication Port: DSUB15 (Analog) - External Memory: PMC25LV010E 2) Click the LoadFile button, select an MCU code file, and then click the Open [O] button. 4-15...
  • Page 31 4. Troubleshooting 3) Click the Auto Program button. 4) When programming and verification are complete, hard power the monitor off and then on again. 4-16...
  • Page 32 4. Troubleshooting Inputting the Code (HDCP)  1. Run the service.exe file. 2. Click the HDCP button. 4-17...
  • Page 33 4. Troubleshooting 3. Click the HDCP Write button and select MStar_HDCPKEY. 4. Inputting the HDCP key is completed. 4-18...

  • Page 34: Exploded View & Part List

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS22LRZKUV/EN Exploded View (P2250)

  • Page 35: Parts List (P2250)

    5. Exploded View & Part List 5-1-1. LS22LRZKUV/EN Parts List (P2250) Location No. Code No. Description & Specification Q’ty SA/SNA Remark M0006 BN96-10576A ASSY SHIELD P-COVER;LAVENDER 21.5”,SECC M0013 BN96-10571A ASSY COVER P-REAR;LAVENDER 21.5”,ABS HB, S.N.A M0014 BN94-02722M ASSY PCB MAIN-ATZ,W/W;LS22LRZKUV/EN M0027 BN96-09629A ASSY STAND P-BASE;ECOFIT,ABS HB,BK23(H/G...
  • Page 36 5. Exploded View & Part List 5-2 LS22LRZKUV/EN Parts List (P2250) Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark P2250,WBB4/S22B6-LLR,21.5,LCD- LS22LRZKUV/EN MO,NETHERL M0001 BN90-02210A ASSY COVER FRONT;LAVENDER 22 S.N.A ASSY COVER P-FRONT;LAVENDER T0003...
  • Page 37 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark BN91-02732C ASSY LCD-ATZ;LS22CM* S.N.A M0215 BN07-00594A LCD-PANEL;M215HW01 V0 M0017 BN91-03759V ASSY CHASSIS-ATZ,W/W;LS22LRZKUV/EN S.N.A SCREW-TAPTYPE;PWH,+,- 6003-000264 ,B,M3,L6,ZPC(WHT),S SCREW-TAPTYPE;BH,+,S,M4,L8,ZPC(WHT),S 6003-001439 S.N.A M0174 BN44-00296B IP BOARD;PWI2004SL(C),Lavender21.5”w,0.7 M0014 BN94-02722M ASSY PCB MAIN-ATZ,W/W;LS22LRZKUV/EN...
  • Page 38 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark TR-SMALL SIGNAL;KTC3875S- ..4 Q201 0501-000445 Y,NPN,150mW,SOT TR-SMALL SIGNAL;KTC3875S- ..4 Q203 0501-000445 Y,NPN,150mW,SOT TR-SMALL SIGNAL;KTC3875S- ..4 Q204 0501-000445 Y,NPN,150mW,SOT TR-SMALL SIGNAL;KTC3875S- ..4 Q601 0501-000445 Y,NPN,150mW,SOT TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC- ..4...
  • Page 39 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R108 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 S.N.A ..4 R123 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 S.N.A ..4 R270 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 S.N.A ..4 R218 2007-000083 R-CHIP;3Kohm,5%,1/10W,TP,1608 S.N.A ..4 R229 2007-000083 R-CHIP;3Kohm,5%,1/10W,TP,1608 S.N.A ..4...
  • Page 40 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R641 2007-002425 R-CHIP;1ohm,5%,1/10W,TP,1608 S.N.A ..4 R642 2007-002425 R-CHIP;1ohm,5%,1/10W,TP,1608 S.N.A ..4 C201 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 S.N.A ..4 C202 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 S.N.A ..4 C229 2203-000236 C-CER,CHIP;0.1nF,5%,50V,C0G,1608 S.N.A ..4...
  • Page 41 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C623 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C626 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C627 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C631 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C632 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C635 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C636...
  • Page 42 M0045 BN92-04866K ASSY ACCESSORY;LS20LRZKUV/EN S.N.A CBF-POWER CORD;DT,EU,FP3/YES,IEC320 T0268 3903-000042 C13/ M0114 BN39-00244G CBF SIGNAL;D-sub cable,15P/15P,20276N,15 MANUAL FLYER-WARRANTY T0238 BN68-01925B S.N.A CARD;comm,Samsung, ASSY STAND P-BASE;ECOFIT,ABS HB,BK23(H/ M0027 BN96-09629A SCREW-TAPTYPE;FH,+,B,M3,L8,ZPC(BLK),SW ...3 6003-001001 S.N.A ...3 T0524 6902-000109 BAG PE;HDPE,T0.015,W350,L430,TRP,28,2,4. S.N.A ...3 CIS4 BN61-01717A HOLDER-STAND;BIZET,NI PLT,CH,+,M4,L11(5)
  • Page 43 SA/SNA Remark MANUAL FLYER-03,WARRANTY ...3 BH68-00633B S.N.A CARD;comm,Samsu ...3 BH68-70448A CARD-01;TFT LCD,SRC,RUSSIA,S/W,120,W210* S.N.A ...3 M9889 BN63-02368B CLOTH-CLEAN;cloth,120,160,sea blue,ToC S.N.A MANUAL FLYER-00,WEE;comm,Samsung,23La ...3 BN68-00907F S.N.A MANUAL FLYER-TOC ...3 BN68-02186A S.N.A GUIDE;COMM,SAMSUNG,10 L ASSY HOLDER P-WIRE;MCKINLEY,ABS ...3 BN96-06529A S.N.A HB,BK23 ..4 6902-000336 BAG ZIPPER;LDPE,T0.05,W70,L80,TRP,-,-,-,...

  • Page 44: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board...
  • Page 45 6. Wiring Diagram Block Role Description Remarks Scaler The ADC, TMDS, Scaling and Controller are integrated on a SE859MRH IC200 single chip. FLASH MEMORY Stores the firmware for the Scaler. The information can be IC201 updated. EEPROM NVRAM Stores the OSD, Timing etc. IC203 24C08 EEPROM...

  • Page 46: Wiring Diagram - Ip Board

    6. Wiring Diagram 6-2. Wiring Diagram - IP Board LVDS Connector (Connect to Panel) IP board 3711-003847 3708-001150 Scaler SE859MRH 3701-001173 3701-001219 Function Connector (Connect to IP-Board) DVI Connector RGB Connector (Connect to PC) (Connect to PC)

  • Page 47: Connector Functions

    6. Wiring Diagram 6-3. Connector Functions Connector Functions CN101  CN600 Supplies 5V from the power board to the main board and transmits the PWM output from the power board to the inverter. *When a problem occurs: The No Power and Blank Screen errors may occur. CN1 ~ CN4 In Transmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel.

This manual is also suitable for:

P2050(g)P2350(g)

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