Samsung T22A300 Service Manual
Hide thumbs Also See for T22A300:

Advertisement

www.freeservicemanuals.info
SERVICE
TFT-LCD TV Monitor
T22A300 / T27A300
LCD TV Monitor
Chassis : WDS2
Model
: T22A300
T27A300
1. Precautions
2. Product specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Wiring Diagram
Published in Heiloo, Holland.
Manual
Contents
5/22/16

Advertisement

Table of Contents
loading

Summary of Contents for Samsung T22A300

  • Page 1 5/22/16 LCD TV Monitor Chassis : WDS2 Model : T22A300 T27A300 SERVICE Manual TFT-LCD TV Monitor Contents 1. Precautions 2. Product specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Wiring Diagram T22A300 / T27A300 Published in Heiloo, Holland.
  • Page 2: Table Of Contents

    www.freeservicemanuals.info 5/22/16 Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Static Electricity Precautions ..................1-3 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Detail Factory Option ...................... 2-3 2-3.
  • Page 3: Precautions

    www.freeservicemanuals.info 5/22/16 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 4: Servicing Precautions

    www.freeservicemanuals.info 5/22/16 1. Precautions 1-1-4. Product Safety Notices Some electrical and mechanical parts have special safetyrelated characteristics which are often not evident from visual inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage, wattage, etc.
  • Page 5: Static Electricity Precautions

    www.freeservicemanuals.info 5/22/16 1. Precautions 1-3. Static Electricity Precautions Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly called Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-effect transistors. The following techniques will reduce the incidence of component damage caused by static electricity. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground.
  • Page 6: Product Specifications

    5/22/16 2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model T22A300 Feature DTV/ATV, 2-HDMI, 1-SCART, 1-USB2.0 CI slot ሪ Brightness : 250 cd/m ሪ High Contrast Ratio : 1,000:1 ሪ Response Time : 5ms ሪ Specifications Item...
  • Page 7 www.freeservicemanuals.info 5/22/16 2. Product specifications Model LT27A300 Feature DTV/ATV, 2-HDMI, 1-SCART, 1-USB2.0 CI slot ሪ Brightness : 300 cd/m2 ሪ High Contrast Ratio : 1,000:1 ሪ Response Time : 5ms ሪ Specifications Item Description LCD Panel 27inch FHD Scanning Frequency Horizontal : 54.2 kHz ~ 83.8 kHz (Automatic) Vertical : 49 Hz ~ 75 Hz (Automatic) Display Colors...
  • Page 8: Detail Factory Option

    2. Product specifications 2-2. Detail Factory Option If you replace the main board with new one, please change the factory option as well. The options you must change are "Type" and "Front Color". Model Name T22A300 T27A300 Vendor Panel CODE...
  • Page 9: Accessories

    2. Product specifications 2-3. Accessories Product Description Code. No Remark Remote Control & Batteries AA59-00496A (AAA x 2) 4301-000121 T22A300 : 3903-000603 Power Cord T27A300 : 3903-000525 T22A300 : BN96-12485J Stand Base T27A300 : BN96-20897A Stand Body BN96-12487D Samsung Electronics Service center...
  • Page 10: New Features Explanation

    • Before connecting your device to the TV, please back up your files to prevent them from damage or loss of data. SAMSUNG is not responsible for any data file damage or data loss. • Do not disconnect the USB device while it is loading.
  • Page 11: Screen Display

    www.freeservicemanuals.info 5/22/16 2. Product specifications • If a USB device connected to the TV is not recognized, the list of files on the device is corrupted or a file in the list is not played, connect the USB device to the PC, format the device and check the connection. •...
  • Page 12 www.freeservicemanuals.info 5/22/16 2. Product specifications Music „ Playing Music Press the ▲/▼/◄/► button to select the desired Music in the file list. Press the ENTER button. Only displays the files with MP3 and PCM file extension. Other file extensions are not displayed, even if they are saved on the same USB device.
  • Page 13 www.freeservicemanuals.info 5/22/16 2. Product specifications My Downloads - Additional Functions „ Music/Photos Play Option menu During playing a file, press the TOOLS button. Category Operation Music Photos Shuffle Mode You can play the music randomly. Repeat Mode You can play movie and music files repeatedly. Picture Mode You can adjust the picture setting.
  • Page 14: Disassembly And Reassembly

    www.freeservicemanuals.info 5/22/16 3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the Monitor. As this monitor has parts that are sensitive to static electricity, be careful when handling them. 3-1.
  • Page 15 www.freeservicemanuals.info 5/22/16 3. Disassembly and Reassembly Description Picture Description Screws Remove the screws of Rear-Cover. 22" : 5 screws 27" : 7 screws 6003-001782 Lift up the rear-cover. Remove the left and right speaker. Remove the 4 screws of main board. Remove the 3 screws of SMPS board.
  • Page 16 www.freeservicemanuals.info 5/22/16 3. Disassembly and Reassembly Description Picture Description Screws Lift up the panel. Reassembly procedures are in the reverse order of disassembly procedures. Published in Heiloo, Holland.
  • Page 17: Troubleshooting

    www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting 4-1-1. Previous check Check the various cable connections first. Check to see if any cables are damaged or burnt. Check to see if there is a disconnected or loose cable connection. Check to see if the cables are connected according to the connection diagram. Check the power input to the Main Board.
  • Page 18 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-2. No Power The LEDs on the front panel do not work when connecting the power cord. Symptom The SMPS relay does not work when connecting the power cord. The units appears to be dead. The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning.
  • Page 19 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts „ Main Board_Bottom Published in Heiloo, Holland.
  • Page 20 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-3. No Video (HDMI 1, 2 - Digital signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 21 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts „ Main Board_Top Published in Heiloo, Holland.
  • Page 22 www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS „ HDMI input (RX_Data, RX_Clk) LVDS output Published in Heiloo, Holland.
  • Page 23 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-4. No Video (Tuner_CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 24 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts „ Main Board_Top Published in Heiloo, Holland.
  • Page 25 www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS „ LVDS output Published in Heiloo, Holland.
  • Page 26 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-5. No Video (Tuner DTV) Symptom Audio is normal but no picture is displayed on the screen. Check the DTV source. Major Check the Tuner, Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 27 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts „ Main Board_Top 4-11 Published in Heiloo, Holland.
  • Page 28 www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS „ LVDS output 4-12 Published in Heiloo, Holland.
  • Page 29 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-6. No Video (Video CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the Main Chipset. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 30 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts „ Main Board_Top 4-14 Published in Heiloo, Holland.
  • Page 31 www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS „ CVBS OUT (Grey Bar) LVDS output 4-15 Published in Heiloo, Holland.
  • Page 32 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-1-7. No Sound Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Check the source and check the Input the sound source properly.
  • Page 33 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Location of Parts „ Main Board_Bottom 4-17 Published in Heiloo, Holland.
  • Page 34 www.freeservicemanuals.info 5/22/16 4. Troubleshooting WAVEFORMS „ Speaker out 4-18 Published in Heiloo, Holland.
  • Page 35: Alignments And Adjustments

    www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment Instuction Usually, a color LED/LCD TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. Use the specified test equipment or its equivalent. Correct impedance matching is essential.
  • Page 36: Factory Mode Adjustments

    www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-3. Factory Mode Adjustments 4-3-1. Entering Factory Mode To enter ‘Service Mode’ Press the remote -control keys in this sequence : If you do not have Factory remote - control Power OFF INFO MENU MUTE Power ON If you have Factory remot - control INFO FACTORY KEY...
  • Page 37 www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-3-3. Factory Data Option Factory Name Data Range Factory Reset Select Panel Type 12 : inch 3 : vendor 22D6TF0E / 22L6TF0E / 23A6TF0E 4 : refresh Type 24L6TF0E / 27A6TF0E / 27D6TF0E 5 : POL 6 : resolution 7 : multi 8 : BLU...
  • Page 38 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Control Factory Name Data Range EDID EDID ON/OFF EDID WRITE ALL … Download EDID data to EEPROM. EDID WRITE PC … Set "ON" of EDID ON/OFF Go EDID WRITE ALL and Push EDID WRITE HDMI … Enter or ►...
  • Page 39 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Control Factory Name Data Range Sound High Devi ON/OFF Carrier_Mute ON/OFF Speaker Delay Normal 0~255 Audio delay for Lipsync Control for ATV sound of stereo Pilot Level High Thld 0x28h 0x00~0xff /multiplex Control for ATV sound of stereo Pilot Level Low Thld 0x10h 0x00~0xff...
  • Page 40 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Factory Name Data Range LNA Status Not modified Not modified Modulation Not modified Code Rate Not modified Not modified Hier Modulation Not modified Frequency Offset Not modified Timing Offset Not modified Not modified Not modified PLL Type Not modified DEMOD Type Not modified...
  • Page 41 www.freeservicemanuals.info 5/22/16 4. Troubleshooting Factory Name Data Range C_BER_1 Not modified ADC WB Factory Name Data Range AV Calibration Success Success / Failure Comp Calibration Success Success / Failure PC Calibration Success Success / Failure HDMI Calibration Success Success / Failure ADC Target 1st_AV_Low 0 ~1020...
  • Page 42 www.freeservicemanuals.info 5/22/16 4. Troubleshooting ADC WB Factory Name Data Range 2nd_G_H 0 ~ 255 2nd_B_H 0 ~ 255 Mode Sub Brightness 0 ~ 255 R_Offset 0 ~ 255 G_Offset 0 ~ 255 B_Offset 0 ~ 255 Sub Contrast 0 ~ 255 R_Gain 0 ~ 255 G_Gain...
  • Page 43: White Balance -Calibration

    www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-4. White Balance - Calibration 4-4-1. White Balance -Calibration 1. Calibration AV Calibration Comp Calibration PC Calibration HDMI Calibration 4-4-2. White Balance - Adjustment (low light) (hight light) Sub Bright Sub Contrast 3. W/B R offset R gain G offset G gain...
  • Page 44: White Ratio (Balance) Adjustment

    www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-5. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance). Since the adjustment value and the data value vary depending on the input source, you have to adjust these in CVBS, Component 1 and HDMI 1 modes.
  • Page 45: Servicing Information

    4-6. Servicing Information 4-6-1. USB Download Method (Main SW) 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 (T-MSUMDEUC) upgrade into the USB port on the rear of the TV.
  • Page 46: How To Upgrade Sub Micom

    If message change from " off" to "wait", TV is upgrading Sub S/W. (It takes about 5 min.) If update completes, TV set will booting automatically. 4-8. Mechanical diagram T22A300 T27A300 Set with Stand 507.0 x 394.0 x 197.0 mm 642.1 x 473.7 x 217.3 mm...
  • Page 47: Pcb Diagram

    www.freeservicemanuals.info 5/22/16 4. Troubleshooting 4-9. PCB diagram 4-9-1. PCB layout Mian PCB „ Main PCB 4-31 Published in Heiloo, Holland.
  • Page 48 www.freeservicemanuals.info 5/22/16 4. Troubleshooting BOTTOM INNER 1 INNER 2 4-32 Published in Heiloo, Holland.
  • Page 49 www.freeservicemanuals.info 5/22/16 4. Troubleshooting SMPS PCB „ Model / Inch CODE 22” BN44-00467C PD22A0_BPNV Model / Inch CODE 27” BN44-00450A PD27A0_BDY 4-33 Published in Heiloo, Holland.
  • Page 50: Wiring Diagram

    www.freeservicemanuals.info 5/22/16 5. Wiring Diagram 5. Wiring Diagram 5-1. Wiring Diagram Published in Heiloo, Holland.
  • Page 51: Connector

    www.freeservicemanuals.info 5/22/16 5. Wiring Diagram 5-2. Connector POWER IN (CN201_LED/CN202_LCD) FUNCTION (CN901) MSDA SW_POWER FUNC_INTR SW_INVERTER 3.3V LED_STB B13V MSCL SPEAKER (CN302) B13V B12VS PWM_DIMMING LVDS OUT (CN1603_FHD) HEADPHONE (CN301) Panel_VCC EVEN[1]- Panel_VCC HP_R Panel_VCC EVEN[0]+ HP_L EVEN[0]- IDENT_HP ODD[3]+ HDMI (CN601~CN602) ODD[3]- RX2+...
  • Page 52 www.freeservicemanuals.info 5/22/16 5. Wiring Diagram • TUNER (option by sec code) TUNER (BN40-00221A) RF_AGC IF-AGC DIF 1 DIF 2 CVBS IF-TP Published in Heiloo, Holland.
  • Page 53: Connector Functions

    www.freeservicemanuals.info 5/22/16 5. Wiring Diagram 5-3. Connector Functions Connector Functions Main  IP (14p) Supply main power and dimming signal from IP Board to Main Board. The LVDS signal transfered from Main Board to Panel. Main  T-CON (30p LVDS) Supply power from IP board to Driver Board.
  • Page 54 5/22/16 Exploded Views and Parts List 1. Exploded View and Part List Exploded View Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 55 ASSY COVER P-REAR; TA300 27,EUROPE,HIPS, BN91-08354B P001A BN44-00450A DC VSS-LED TV PD BD; PD27A0_BDY,AC/DC,AC1 BN92-08501K SB01A BN96-12487D ASSY STAND P-BODY; TA300,EUROPE,PC+ABS, V BN92-08501K SB04A BN96-20897A ASSY STAND P-BASE; TA300 27,EUROPE,PC+ABS Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 56: Electrical Parts List

    ...4 0403-001797 DIODE-ZENER;NZH3V0B,2.85/3.15V,500mW,SOD ...4 D0254 0404-001404 DIODE-SCHOTTKY;BAT721C,40V,200mA,SOT-23, ...4 T0139 0406-001200 DIODE-TVS;RCLAMP0504F,6/-/-V,150W,SC-70 ...4 0407-000114 DIODE-SWITCHING;KDS184,80V,100mA,SOT-23, ...4 0501-000279 TR-SMALL SIGNAL;KSA1182-Y,PNP,150mW,SOT- ...4 Q101 0501-000445 TR-SMALL SIGNAL;KTC3875S-Y,NPN,150mW,SOT ...4 CEQ2 0505-000110 FET-SILICON;2N7002,N,60V,115mA,7.5ohm,0..4 0505-002893 FET-SILICON;AO4801AS,P,-30V,-5A,2W,SOIC- Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 57 MR13 2007-000157 R-CHIP;47Kohm,5%,1/16W,TP,1005 ...4 2007-000160 R-CHIP;68Kohm,5%,1/16W,TP,1005 ...4 DR39 2007-000162 R-CHIP;100Kohm,5%,1/16W,TP,1005 ...4 MR16 2007-000168 R-CHIP;470Kohm,5%,1/16W,TP,1005 ...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 Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 58 R-NETWORK;100ohm,5%,1/16W,L,CHIP,8P,TP,2 ...4 2011-001449 R-NETWORK;22ohm,5%,1/16W,L,4P,TP,1010 ...4 2011-001587 R-NETWORK;100ohm,5%,1/16W,L,CHIP-V,4P,TP ...4 PC43 2203-000233 C-CER,CHIP;0.1nF,5%,50V,C0G,TP,1005 ...4 2203-000359 C-CER,CHIP;0.15nF,5%,50V,C0G,TP,1005,0.5 ...4 C254 2203-000438 C-CER,CHIP;1nF,10%,50V,X7R,TP,1005 ...4 C507 2203-000489 C-CER,CHIP;2.2nF,10%,50V,X7R,TP,1005 ...4 AD480 2203-000530 C-CER,CHIP;2.7nF,10%,50V,X7R,TP,1005,- ...4 V1233 2203-000575 C-CER,CHIP;220nF,10%,25V,X7R,TP,2012 Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 59 3301-000314 BEAD-SMD;120ohm,1608,TP ...4 T0568 3301-002039 BEAD-SMD;26ohm,1608,TP ...4 T0313 3404-001209 SWITCH-TACT;12VDC,50mA,250gf,4.5x4.5x1.5 ...4 3701-001591 CONNECTOR-HDMI;19P,2ROW,FEMALE,SMD-S,AU ...4 AC510 3708-001150 CONNECTOR-FPC/FFC/PIC;30P,1mm,SMD-A,SN,Y ...4 3709-001673 CONNECTOR-CARD SLOT;68P,1.27mm,stmap,AU, ...4 HB01A 3711-005601 HEADER-BOARD TO CABLE;BOX,8P,1R,2mm,SMD- ...4 3711-007569 CONNECTOR-HEADER;BOX,14P,2R,2.0mm,DIP,SN Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 60 REMO2 AA59-00496A REMOCON;TM940,39,3V,EUROPE iDTV,400 SB01A BN96-12487D ASSY STAND P-BODY;TA300,EUROPE,PC+ABS, V BN61-05969C STAND-BAR;TA300,ABS+PC,BK0020,V0,H/GLOSS ...4 BN61-05970D STAND-BAR IN;TA300,ABS+PC,BK0020,V0,H/GL BN68-02466C LABEL-STICKER;PLUM,ALL,ART PAPER,50,10,S ACCE1 BN96-18406D ASSY ACCESSORY;LT22A300EW/EN EC11 3903-000525 CBF-POWER CORD;DT,CEE,LP-21L,250V,2.5A,B T0120 4301-000121 BATTERY-MN;1.5V,R03,10.5x44.5m,HOLDER,7. Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 61 PAD PACKING-EDGE;CB,T5,W80x80,L2200,YEL, BN69-03934A WRAP STRETCH FILM;All,HDPE,0.012,500,300 BN69-05783A PACKING INNER-PAD;LS23B3UV,CB,T3,700,800 BN69-06826A CUSHION-SET;TA300-27,EPS BN69-06840A PALLET-WOODEN;LC27A550,WOOD,740,940,130 BN81-02321A BAG-AIR;LIGHT FLEX PLASTIK,PE WHITE,L120 HA83-00057B LP-TAPE-CELLULOSE;,HA02-030010,T0,046,W7 BN92-09389B ASSY BOX;TA300 27,EUROPE T0527 BH68-00634A LABEL BOX-00;ALL MODEL,MOJO 90G,80,75,WH Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 62 5/22/16 Exploded Views and Parts List Level Loc. Part Code Description & Specification Qty. SA/SNA BN69-06860A BOX-SET;27TA300,CB,A-01,SW2,YEL,W703,D45 M0245 BN96-02895A ASSY MISC P-01,HANDLE PACKING;ALL MODEL, BN66-00007A LEVER-TOP;ALL MODEL,LDPE,WHITE,5.8g BN66-00008A LEVER-BOTTOM;ALL MODEL,LDPE,WHITE,4.01g Copyright© 1995-2011 SAMSUNG. All rights reserved. Published in Heiloo, Holland.
  • Page 63 5/22/16 This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2011 Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable All rights reserved. International and/or domestic law. Printed in Korea Published in Heiloo, Holland.

This manual is also suitable for:

T27a300

Table of Contents