Samsung T220 Service Manual
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Samsung T220 Service Manual

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SERVICE
TFT-LCD Monitor
T220 / T220(G)
T200 / T200(G)
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LTW22HS / LTW22GS
LTW20HS / LTW20GS
Model
: T220 / T220(G)
T200 / T200(G)
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
7. Schematic Diagram
Contens

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Summary of Contents for Samsung T220

  • Page 1 LCD-Monitor Chassis : LTW22HS / LTW22GS LTW20HS / LTW20GS Model : T220 / T220(G) T200 / T200(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 7. Schematic Diagram T220 / T220(G) T200 / T200(G) Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    5. Exploded View & Part List ..................5-1 5-1. Exploded View-T200 / T200(G) ..................5-1 5-2. Parts List-T200 / T200(G) ....................5-3 5-3. Exploded View-T220 / T220(G) ..................5-4 5-4. Parts List-T220 / T220(G) ....................5-6 6. Wiring Diagram ......................6-1 6-1. Wiring Diagram - Main Board ..................6-1 6-2.
  • 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 © 2008 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: BN82-00357A-00...
  • Page 4 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 5. After disconnecting SHIELD-LAMP of left side, disassemble lamp wire between panel and IP Board. 6. Remove the four (4) screws shown in the figure and remove the Bracket support. 7. Remove the two (2) screws and then remove the holders from the four (4) snaps designated in the right figure using the provided jig.
  • Page 6 3. Disassembly and Assembly Description Photo Screws 8. Remove the connectors. Caution : Servicing is not supported for the PCB. ▶Assembly 9. The assembly is in the reverse order of the disassembly. 10. Connect the disassembled snap and the LED module again.
  • Page 7 3. Disassembly and Assembly Description Photo Screws 12. The assembly is in the reverse order of the disassembly. Insert the cover into the groove and then press both sides. ※The assembly is in the reverse order of disassembly.

  • Page 8: Exploded View & Part List

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LS20TWHSUV/XF Exploded View-T200 / T200(G)
  • Page 9 5. Exploded View & Part List 5-1-1. LS20TWHSUV/XF Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark T0003 BN96-07381J ASSY COVER P-FRONT;LS20TW,PMMA+ABS,TOC,R M0215 BN07-00402A LCD-PANEL;M201EW02 V8 BN61-02426A BRACKET-SHIELD;S/M 203B,SPTE,T0.3 S.N.A BN63-03953A SHIELD-LAMP;2043BW/NW[Mckinley],SPTE,T0. S.N.A M0006 BN96-07384A ASSY SHIELD P-COVER;LS20TW,SECC T0.8 S.N.A M0013 BN96-07382B...
  • Page 10 ...3 CCM1 BN63-02183D COVER-SHEET;Rhcm,PE Vinyl,T0.05,680mm,20 S.N.A ...3 M0112 BN63-04426A COVER-FRONT;T20W,PMMA+ABS-PMMA,TOC S.N.A KNOB-GUIDE;T220,PMMA+ABS,HB,BK26,H/ ...3 BN64-00842A S.N.A GLOSS KNOB CONTROL;T220,PMMA+ABS,HB,BK26,H/ ...3 T0022 BN64-00844A S.N.A ...3 M0102 BN96-07569A ASSY BLU P;T220D,MB-M0716,WHITE,BLU ..4 BN94-01893J ASSY PCB MAIN-BN96-07569A;T,ASSY BLU P S.N.A A/S-MOLD FRAME;SR- ..5 BN81-01709A S.N.A...
  • Page 11 BN41-01034A PCB-FUNCTION;T Function PCB,FR-4,2,MP 1. S.N.A ..4 BN94-01893B ASSY PCB MAIN-FUNCTION PCB;T S.N.A LEAD CONNECTOR;T220D,UL1571#30,UL,4P ..5 M2893 BN39-01051A ,#30 ..5 M0104 BN63-04673A EARTH-PLATE;T220,PBS SH,T0.15 S.N.A ..5 T0174 BN97-02297F ASSY SMD;T,W/W S.N.A DIODE-ZENER;-,5.49-5.73V,200mW,SOD- ..6 0403-001411 323,T DIODE-ZENER;-,5.49-5.73V,200mW,SOD- ..6 0403-001411 323,T DIODE-ZENER;-,5.49-5.73V,200mW,SOD- ..6...
  • Page 12 5. Exploded View & Part List KEY CODE-CERTIFICATE;(HDCP ..4 BN46-00018A S.N.A KEY)PPM42M5S, ...3 T0174 BN97-02132F ASSY SMD;LS20TWH* S.N.A SOLDER-CREAM;LST309-M,- ..4 SUB05 0202-001477 0.528 S.N.A ,D20~45##,96.5Sn/ DIODE-SWITCHING;MMBD4148SE,100V,200m ..4 D100 0401-001056 A,SO DIODE-SWITCHING;MMBD4148SE,100V,200m ..4 D101 0401-001056 A,SO DIODE-SWITCHING;MMBD4148SE,100V,200m ..4 D102 0401-001056 A,SO DIODE-SWITCHING;MMBD4148SE,100V,200m ..4 D103...
  • Page 13 5. Exploded View & Part List TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S ..4 Q202 0501-002080 C-59 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S ..4 Q205 0501-002080 C-59 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S ..4 Q207 0501-002080 C-59 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,S ..4 Q602 0501-002080 C-59 ..4 Q409 0505-001165 FET-SILICON;SI3443BDV,P,-20V,+-4.4A,65mo ..4 Q409 0505-001165 FET-SILICON;SI3443BDV,P,-20V,+-4.4A,65mo ..4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8Bit,SOP,8P,5x ..4...
  • Page 14 5. Exploded View & Part List ..4 R110 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000080 R-CHIP;2Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000082 R-CHIP;3.3Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000083 R-CHIP;3Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000083 R-CHIP;3Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4...
  • Page 15 5. Exploded View & Part List ..4 C120 2203-000257 C-CER,CHIP;10nF,10%,50V,X7R,TP,1608 ..4 C120 2203-000384 C-CER,CHIP;0.015nF,5%,50V,C0G,1608 ..4 C120 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 ..4 C120 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 ..4 C120 2203-000626 C-CER,CHIP;0.022nF,5%,50V,C0G,1608 ..4 C120 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,1608 ..4 C120 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,1608 ..4 C120 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,1608 ..4 C120 2203-000888 C-CER,CHIP;4.7nF,10%,50V,X7R,1608 ..4...
  • Page 16 5. Exploded View & Part List ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4...
  • Page 17 CARD,BH MANUAL FLYER-11,WARRANTY ..4 BH68-00297E S.N.A CARD;SAMSUNG BA MANUAL FLYER-10,WARRANTY ..4 BH68-00297F S.N.A CARD;ENVELOPE,S ...3 BN63-02368A CLOTH;LS07BTT,SUEDE,0.6,160,120 S.N.A ASSY MANUAL P-IB+QSG;T220,T200,T190,W/ ...3 M0215 BN96-07349A S.N.A MANUAL FLYER-06,QSG;LCDQUICK SETUP ..4 BH68-00376L S.N.A GUIDE ..4 BN59-00716A S/W DRIVER-01,IB;T220,T200,T190,Syncmast S.N.A ASSY STAND P-BASE;LS22TW,PMMA+ABS,...
  • Page 18 5. Exploded View & Part List ..4 BN60-00073A SPACER-WASHER;Mckinley,SK-5,6.0,12.0,T0. S.N.A ..4 BN61-03855A SPRING ETC-DISK;Mckinley,SK-5,6.0,12.0,T S.N.A BRACKET-STAND TILT;T- ..4 BN61-03904B S.N.A PROJECT(22W),SM50C, ..4 BN61-03905A BRACKET-STAND BODY;T22W,HGI,T 2.0 S.N.A ..4 BN66-00015A SHAFT-HINGE;Mckinley,S45C,12.0 S.N.A M0003 BN92-03363T ASSY BOX;LS20TWHSUV/XF S.N.A BOX-SET;T20,CB,A-01,SW- BN69-02640B 1.02 S.N.A 50,W547,D481,H110 ASSY MISC P-HANDLE PACKING;ALL T0081...

  • Page 19: 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 20: 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 21: 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 22 1. Precautions Memo...

  • Page 23: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model T220 / T220(G) T200 / T200(G) Feature Panel Specifications: 300cd/m2, 2ms, CR 1000:1(DC), 170/160(CR>10) � DPMS : <1W � Off-Timer function for reducing standby power usages � Magic Bright3, Magic Tune, Windows Vista authentication �...

  • Page 24: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models T220 / T220(G) Model Mckinley(943BW) T200 / T200(G) Design Resolution 1680 x 1050 1440 x 900 Input Analog / DVI Digital Analog / Digital with HDCP Response Time 5ms(W to B) Viewing Angle 170/160(CR>10)

  • Page 25: Accessories

    2-3. Accessories Product Description Ccde. No Remark Quick Setup Guide BH68-00907A Warranty Card BH68-00633B (Not available in all locations) Samsung Electronics User’s Guide, Service center Monitor Driver, BN59-00716A Natural Color Pro Software D-Sub(15 Pin) Cable BN39-00244G Power Cord 3903-000042 2-4. Accessories (Sold separately)
  • Page 26 2. Product specifications Memo...

  • Page 27: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting Set custom mode as follows before beginning a repair. • Resolution: 1680 x 1050 • H-frequency: 60 kHz • V-frequency: 65 Hz If the screen is blank, check whether the power cord is connected correctly. The circuits to check: •...

  • Page 28: 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 29: Circuit Diagrams When Power Not Turn On

    4. Troubleshooting 4-2-1. Circuit diagrams when the power does not turn on...

  • Page 30: When The Screen Is Blank (Analog)

    4. Troubleshooting 4-3. When the screen is blank (Analog) Symptom - LEven 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 31: Circuit Diagrams When Blank Screen Is Displayed

    4. Troubleshooting 4-3-1. When a blank screen is displayed (Analog) ② ① ③ ④...
  • Page 32 4. Troubleshooting 4-3-2. Waveforms when no screen is displayed (Analog) ① ③ ④...

  • Page 33: 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 34 4. Troubleshooting 4-4-1. Circuit diagrams when a blank screen is displayed (Digital)
  • Page 35 4. Troubleshooting 4-4-2. Waveforms when a blank screen is displayed (Digital) ② ①...

  • Page 36: 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 37: 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 38 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 39 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 40 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 41 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 42 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 43 4. Troubleshooting Inputting the Code (HDCP)  1. Run the service.exe file. 2. Click the HDCP button. 4-17...
  • Page 44 4. Troubleshooting 3. Click the HDCP Write button and select MStar_HDCPKEY. 4. Inputting the HDCP key is completed. 4-18...

  • Page 45: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board LVDS for Panel Lamp wire for Panel VGA Input...

  • Page 46: Wiring Diagram - Ip Board

    6. Wiring Diagram 6-2. Wiring Diagram - IP Board LVDS Connector (Connect to Panel) 3708-001150 Scaler SE758MRH 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.
  • Page 48 6. Wiring Diagram Memo...

  • Page 49: Schematic Diagram

    7. Schematic Diagram 7. Schematic Diagram 7-1. Circuit Descriptions Location Function Remark Scaler Besides the ADC, LVDS, and scaling part, an MCU is embedded as well. All of SE758MRH IC200 them are integrated into one chip. Flash Stores the MCU program embedded in the scaler. It is of a flash type and Memory MX25LV512 rewritable.

  • Page 50: Schematic Diagrams (Scaler Part)

    7. Schematic Diagram 7-2. Schematic Diagrams (Scaler Part) 7-3. Schematic Diagrams (Power Flowchart)

  • Page 51: Smps Part Schematic Diagram

    7. Schematic Diagram 7-4. Schematic Diagrams (IP Board) SMPS Part ...
  • Page 52 7. Schematic Diagram Inverter Part ...

  • Page 53: Schematic Diagrams (Main Pba)

    7. Schematic Diagrams 7-5. Schematic Diagrams (Main PBA) This Document can not be used without Samsungs authorization. DVI Part Scaler : SE758MRH Analgo Part Connector...
  • Page 54 7. Schematic Diagrams Memo...

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