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Samsung PS42D51SX/XEC Service Manual

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SERVICE
PLASMA DISPLAY TV
PLASMA DISPLAY TV
Chassis : D72A(P) Puccini_42D5
Model
: PS42D51SX/XEC
Manual
■
■
■ 2 Way 4 Speakers
■
■
■ Slim line design
■
■
■ 12 Bit image processing
PS-42D5S
FEATURES
DTV Ready PDP TV
1 HDMI input
Energy Saving
(687 billion color)

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Summary of Contents for Samsung PS42D51SX/XEC

  • Page 1 PLASMA DISPLAY TV Chassis : D72A(P) Puccini_42D5 Model : PS42D51SX/XEC SERVICE Manual PLASMA DISPLAY TV FEATURES DTV Ready PDP TV ■ ■ ■ 2 Way 4 Speakers 1 HDMI input ■ ■ ■ Slim line design Energy Saving ■ ■...

  • Page 2: Table Of Contents

    Table of Contents Chapter 1 Precaution ■ 1-1 Safety Precautions ............1-1 ■...
  • Page 3 Chapter 9 PCB Diagram ■ 9-1 PDP Module, SMPS ............9-1 ■...

  • Page 4: Chapter 1 Precaution

    When Check the AC power cord for possible damages. Keep voltage exceeds the specified limits, check each special the part or the lead away from any heat-emitting part. materials. Samsung Electronics...
  • Page 5 Critical safety parts should be bracketed with ( Use only regular parts for replacements (in particular, flame resistance and dielectric strength specifications). Irregular parts or materials may cause electric shock or fire. Samsung Electronics...

  • Page 6: Servicing Precautions

    AC source and turn the switch on. Connect the insu- lating resistance meter (500v) to the AC plug blade. The insulating resistance between the blade of the AC plug and that of the conductive material should be more than 1 ㏁. Samsung Electronics...

  • Page 7: Static Electricity Precautions

    These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Samsung Electronics...

  • Page 8: Installation Precautions

    5. Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric shock. Samsung Electronics...
  • Page 9 MEMO Samsung Electronics...

  • Page 10: Chapter 2 Product Specification

    - DNIe-Lite : Image Enhancer - Sii9993 : HDMI signal receiver - MSP4410G : SIF, Analog Audio Decoder - NSP6241A : Sound Output Control - TAS5122 : Sound Amp - M30620 : Main Micom - 3F8668 : Sub Micom Samsung Electronics...

  • Page 11: Key Features

    - Output resolution : 1024*768 - OSD : Smart user Interface Grade1 - Picture Enhancement : DNIe-L - Still picture, Noise reduction - Comb Filter : 3D comb filter - PIP : D/W, Large - Panorama : Wide Samsung Electronics...
  • Page 12 - TM76 ■ Power Supply - 100V ~ 240V ■ Power - Standy-by : 3W less - Max Power : 380W ■ HDMI - 640x480p @59.94/60Hz - 720x480p @59.94/60Hz - 720x576p @59.94/60Hz - 1280x720p @59.94/60Hz/50Hz - 1920x1080i @59.94/60Hz/50Hz Samsung Electronics...
  • Page 13 VESA GTF 75.029 60.023 VESA DMT ▶ The interlace mode is not supported. ▶ The television might operate abnormally if a non-standard video format is selected. ▶ 480i/p, 576i/p, 720p, or 1080i is not available in pc mode. Samsung Electronics...

  • Page 14: Specifications Analysis

    Anynet D-Net(IEEE1394 S.400) Gemstar (TV Guide On Screen) Screen Burn Protection Antenna 1Input 1Input 1Input CVBS S-Video 1Input 2Input 1Input Component(Y/PB/PR) 1Input 2Input 1Input PC(D-SUB) 1Input(15Pin D-Sub) 1Input(15Pin D-Sub) 1Input(15Pin D-Sub) Connections HDMI 1Input Sub Woofer Optical Coaxial Samsung Electronics...

  • Page 15: Accessories

    Product Specification 2-4 Accessories Accessories Item Item code Remark User Manual BN68-00866F Remote Control BN59-00492A Samsung Service center AAA Batteries 4301-000103 Power Cord 3903-000144 S-VIDEO Cable HDMI Cable HDMI/DVI cable Internet shopping mall Component Cables (RCA) PC Cable PC Audio Cable...

  • Page 16: Chapter 3 Alignment & Adjustment

    3. DC-DC SMPS Board replace : Output voltage check and adjust 4. Logic Board replace : Not adjustment 5. Y-Main Board replace : Not adjustment 6. X-Main Board replace : Not adjustment 7. Buffer Board replace : Not adjustment Samsung Electronics...

  • Page 17: How To Access Service Mode

    Full Menu Display / Move to Parent Menu Item Selection by Moving the Cursor Direction keys ▲ / ▼ Data Increase/Decrease for the Selected Item Direction keys ◀ / ▶ Source Cycles through the active input source that are connected to the unit Samsung Electronics...

  • Page 18: Factory Data

    14 TTX List Flop Flop/List 15 TTX TOP ON/OFF 16 TTX Group Auto Language TTX language 17 TTX Level Level 1.5 LEVEL 1.5 / 2.5 18 Shift Test ON/OFF 19 Sound Delay1 ON/OFF 20 Sound Delay2 ON/OFF 21 Debug ON/OFF Samsung Electronics...
  • Page 19 Praking f0 0 ~ 255 ③ NR Item Range Initial Value Remark Y-NR-Off 0 ~ 255 C-NR-Off 0 ~ 255 Y-NR-ON 0 ~ 255 C-NR-ON 0 ~ 255 ④ Deinterlace Item Range Initial Value Remark Motion 0 ~ 255 Samsung Electronics...
  • Page 20 00 ~ 255 NT-M-Prescale 00 ~ 255 SECAM-L-Prescale 00 ~ 255 AV-Prescale 00 ~ 255 I2S_1 Prescale 00 ~ 255 I2S_2 Prescale 00 ~ 255 Carrier Mute 00 ~ 255 Pilot High 00 ~ 255 Pilot Low 00 ~ 255 Samsung Electronics...
  • Page 21 13 Movie Contrast 0 ~ 100 14 Movie Brightness 0 ~ 100 15 Movie Color 0 ~ 100 16 Movie Sharpness 0 ~ 100 17 RF_dB_1 0 ~ 255 18 RF_dB_2 0 ~ 255 19 RF_dB_3 0 ~ 255 Samsung Electronics...
  • Page 22 12. Reset 13. Spread Spectrum 14. Logic Item Range Initial Value Int/Ext Sel Pat Sel FCRL CON Image Sticking Error Mode Check Error Code Table Vs Reference Vs Average Vs to D/A Va Reference Va Average Va to D/A Samsung Electronics...

  • Page 23: Service Adjustment

    ② Enter Factory mode, move to "White Balance" and click Select. ③ Set the coordinates of H/L and L/L by adjusting "Sub Contrast", "Sub Bright", "R Drive", "G Drive", "B Drive", "R Cutoff", "G Cutoff", and "B Cutoff". H/L Point L/L Point Samsung Electronics...
  • Page 24 Alignment & Adjustment Samsung Electronics...

  • Page 25: Software Upgrade

    1. Connect one end of the RS-232C cable to the PC COM port and the other end of the cable to the PDP Service port while the power of the PDP is off. 2. Rome Flash Downloader. 3-10 Samsung Electronics...
  • Page 26 Alignment & Adjustment 3. When the Flash Downloader is launched, click the Open button. 4. Select a file to be downloaded from the computer. Samsung Electronics 3-11...
  • Page 27 Alignment & Adjustment 5. After selecting a target file, click the Connect button and turn the power on. When the program is activated, Ready click. 6. Note that the power must not be turned off during the download. 3-12 Samsung Electronics...
  • Page 28 Alignment & Adjustment 7. After the download is finished, the Flash Download Completed popup window opens. That indicates S/W upgrade is completed. Samsung Electronics 3-13...

  • Page 29: Replacements & Calibration

    ※ When the SMPS is replaced, the Va, Vs voltages must be checked and adjusted to the proper levels indicated on the panel sticker. Vscan adjustment Vset adjustment Voltage Label adjustment VR514 Va VR432 Vs adjustment adjustment 3-14 Samsung Electronics...

  • Page 30: Chapter 4 Exploded View & Part List

    S.N.A T0073 AA63-01078A GASKET-EMI 42P5,AL POIL,T1.5,7,1006 S.N.A T0073 AA63-01079A GASKET-EMI 42P5,AL POIL,T1.5,W7,L614.5 S.N.A T0074 BN59-00492A REMOCON PL42P5H,TM77,SAMSUNG SIN,47,SILV T0079 BN94-00755B ASSY PCB MISC-MAIN PL-42P5H,D72A,BN41-00 T0152 T0079 T0091 BN94-00732A ASSY PCB MISC-SIDE A/V HPR4272X,D71A,SCH T0448 T0152 BN96-01774A ASSY BRACKET P-WALL RIGHT SPD-42P5HD,SEC S.N.A...

  • Page 31: Chapter 5 Electrical Part List

    BN39-00667C LEAD CONNECTOR-LVDS D71C/SPD-42S5HD,UL20 M2893 BN39-00675A LEAD CONNECTOR PUCCINI,UL1007#26,10PIN,1 M2893 BN39-00676A LEAD CONNECTOR PUCCINI,UL1007#26,12PIN,1 T0074 BN59-00492A REMOCON PL42P5H,TM77,SAMSUNG SIN,47,SILV T0091 BN94-00732A ASSY PCB MISC-SIDE A/V HPR4272X,D71A,SCH T0079 BN94-00755B ASSY PCB MISC-MAIN PL-42P5H,D72A,BN41-00 T0175 BN96-01737B ASSY SPEAKER P 8ohm,P5,42,15W,Urethan co M0013...
  • Page 32 MEMO Samsung Electronics...

  • Page 33: Chapter 6 Troubleshooting

    - Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board. 3. Check the voltage in and out between the SMPS ↔ Main Board, between the SMPS ↔ X, Y Drive Board, and between the Logic Boards. Samsung Electronics...

  • Page 34: Checkpoints By Error Mode

    Is the Fuse (F101) of the Main SMPS Replace Fuse (F101) Power Input Part blown? Main SMPS CN804-2 Pin 3: STB 5V Replace the Main SMPS Pin 5 PS-ON: Check to see if it is 0V Replace the Main Board Samsung Electronics...
  • Page 35 SMPS, CN of the X Drive Board, and CN of the Y Drive Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separating the power cord from the unit. Samsung Electronics...
  • Page 36 SMPS, CN of the X Drive Board, and CN of the Y Drive Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separ ating the power cord from the unit. Samsung Electronics...
  • Page 37 Troubleshooting Procedures Is the speaker output terminal Replace the DC-DC SMPS of the Main Board normal? Replace the Y Drive Board Replace the X Drive Board Replace the Logic Drive Board Replace the Y Buffer Drive Board Samsung Electronics...
  • Page 38 - Check the tuner output signal (CVBS). - Check the power input of the Main board. Is the antenna connection setting Troubleshooting Configure properly properly configured? Procedures Check CN0900 pin 2 for +33V Replace the Main SMPS Replace the Main Board Samsung Electronics...

  • Page 39: Troubleshooting Procedures By Ass'y

    The remote control does not work properly, LED does not work properly, function key 12 ASSY MISC P-INLET BN96-02369A Power mode does not work properly. 13 ASSY PCB MISC-SIDE AV BN94-00732A SIDE AV BOARD The side AV Board does not work properly. Samsung Electronics...
  • Page 40 MEMO Samsung Electronics...

  • Page 41: Chapter 7 Block Diagram

    Block Diagram 7. Block Diagram 7-1 Overall Block Diagram Samsung Electronics...

  • Page 42: Partial Block Diagram

    Block Diagram 7-2 Partial Block Diagram 7-2-1 Audio Signal Block Diagram 7-2-2 Video Signal Block Diagram Samsung Electronics...
  • Page 43 Block Diagram 7-2-3 Logic Board Block Diagram Samsung Electronics...
  • Page 44 Block Diagram 7-2-4 Module Driver Board Block Diagram 1. Y Main Board Power Input Part Logic Signal Input Part Logic Signal Buffer 2. X Main Board Power Input Part Logic Signal Input Part Logic Signal Buffer Samsung Electronics...

  • Page 45: Chapter 8 Wiring Diagram

    Wiring Diagram 8. Wiring Diagram 8-1 Overall Wiring Samsung Electronics...

  • Page 46: Partial Wiring

    ↔ CN2013(Logic B'D) Pin No Signal Pin No Signal Pin No Signal Pin No Signal Pin No Signal D5.3V D5.3V STD_5V 1 ■ 1 ■ 1 ■ 1■ 1 ■ VS_ON D5.3V PS_ON Vset D5.3V Vscan D5.3V D5.3V D5.3V Samsung Electronics...
  • Page 47 Pin No Signal Pin No Signal TXOUT3+ TXOUT1B- 5.3V 1 ■ 1 ■ TXOUT3- TXOUT1+ PW_SDA0 TXCLKOUTB+ TXOUT1- RTN_amp TXCLKOUTB- RTN_amp PW_SCL0 TXCLKOUT+ 18Vamp TXCLKOUT- TXOUT0+ 18Vamp TXOUT0- TXOUT0B+ PS_ON TXOUT0B- TXCLKOUT2+ I2C_READY TXCLKOUT- STD_5V 6.5V TXOUT1B+ FAN_ON FAN_D Samsung Electronics...
  • Page 48 CN0901(Main Board) CN1000(Main Board) CN0903(Main Board) ↔ CN001(Power Button) ↔ Speaker Out ↔ CN1(Function Key Board) Pin No Signal Pin No Signal Pin No Signal SPK_R+ FRONT_KEY1 1■ 1■ SPK_R- FRONT_KEY2 ST5V SPK_L+ SPK_L- FRONT_KEY2 PW_SDA3 PW_SCL3 FRONT_IR Samsung Electronics...

  • Page 49: Chapter 9 Pcb Diagram

    BN96-02216A Y Buffer Lower Board ⑤ ASSY PDP P-LOGIC BOARD BN96-02035A Logic Board ⑥ ASSY PDP P-LOGIC E BUFF BOARD BN96-02036A Logic E Buffer Board ⑦ ASSY PDP P-LOGIC F BUFF BOARD BN96-02037A Logic F Buffer Board ⑧ Samsung Electronics...

  • Page 50: Main Board, Function Key Board, Power Button Board

    9-2 Main Board, Function Key Board, Power Button Board Assy Name Code No. Description ASSY BOARD P-POWER & IR BN96-02050E Power Button Board ① ASSY PCB MISC-MAIN BN94-00755B Main Board ② ASSY BOARD P-FUNCTION BN96-02550A Function Key Board ③ Samsung Electronics...

  • Page 51: Chapter 10 Schematic Diagram

    Schematic Diagram 10. Schematic Diagram 10-1 MAIN 10-1-1 Scart Jack This Document can not be used without Samsung’s authorization. Power Signal NT TUNER Main : BN40-00038A Samsung Electronics 10-1...
  • Page 52 Schematic Diagram 10-1-2 Video switch This Document can not be used without Samsung’s authorization. Power Signal 10-2 Samsung Electronics...
  • Page 53 Schematic Diagram 10-1-3 SAA7119 This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-3...
  • Page 54 Schematic Diagram 10-1-4 HDMI_PC IN This Document can not be used without Samsung’s authorization. Power Signal 10-4 Samsung Electronics...
  • Page 55 Schematic Diagram 10-1-5 SVP EX This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-5...
  • Page 56 Schematic Diagram 10-1-6 MICOM This Document can not be used without Samsung’s authorization. Power Signal 10-6 Samsung Electronics...
  • Page 57 Schematic Diagram 10-1-7 DNIe Lite This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-7...
  • Page 58 Schematic Diagram 10-1-8 JACK IN/OUT This Document can not be used without Samsung’s authorization. Power Signal 10-8 Samsung Electronics...
  • Page 59 Schematic Diagram 10-1-9 CONTROL_POWER CONNECTOR This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-9...
  • Page 60 Schematic Diagram 10-1-10 AUDIO PART This Document can not be used without Samsung’s authorization. Power Signal 10-10 Samsung Electronics...
  • Page 61 Schematic Diagram 10-1-11 LVDS This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-11...
  • Page 62 Schematic Diagram 10-1-12 SOUND DELAY This Document can not be used without Samsung’s authorization. Power Signal 10-12 Samsung Electronics...
  • Page 63 Schematic Diagram 10-1-13 TUNER_DTV_POWER This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-13...

  • Page 64: Function

    Schematic Diagram 10-2 Function This Document can not be used without Samsung’s authorization. Samsung Electronics 10-14...

  • Page 65: Power/Ir

    Schematic Diagram 10-3 Power / IR This Document can not be used without Samsung’s authorization. 10-15 Samsung Electronics...

  • Page 66: Chapter 11 Operation Instruction & Installation

    Also used to select or adjust items on the Aim the remote control towards this spot on on-screen menu. the TV. ) buttons 8 Speakers Press CH or CH to change channels. Also used to move up or down in the on-screen menu. Samsung Electronics 11-1...
  • Page 67 Video input for external devices with an Connect to the DVI audio output jack of an S-Video output, such as a camcorder or VCR. external device. 5 PC IN Connect to the video output jack on your PC. 11-2 Samsung Electronics...
  • Page 68 Operation Instruction & Installation 11-1-3 Remote Control Samsung Electronics 11-3...
  • Page 69 Operation Instruction & Installation 11-4 Samsung Electronics...

  • Page 70: New Features

    The screen brightness is adjusted according to the brightness measured by the Ambient Light Sensor, using the Multi APC function (controls the number of sustain pulses according to the average signal levels) of the PDP panel, thus reducing power consumption. Samsung Electronics 11-5...
  • Page 71 ○ ○ ○ Component 1 Component 2 HDMI Note : This TV has only one tuner and does not allow you to watch one TV channel in the main screen and another channel in the PIP screen. 11-6 Samsung Electronics...

  • Page 72: Installation Notes And Precautions

    11-3-1 Installation Notes 1. Contact a technician for installing the wall bracket. 2. Samsung Electronics is not responsible for any damage to the product or injury to yourself or others if you elect to perform the wall installation. 3. This product is for installing on cement walls. The product may not stay in place when installed on plaster or wood.
  • Page 73 4 screws on the wall corresponding hole. bracket to adjust the length. Match each of the brackets and hinge holes to the corresponding anchor holes and insert and tighten the 11 screws . Length between the two locking holes 11-8 Samsung Electronics...
  • Page 74 ). Then place the product ( ) so that it is firmly fixed to the bracket. Make sure to reinsert and tighten the safety pin ( ) to securely hold the product to the bracket. Wall Bracket Wall Samsung Electronics 11-9...
  • Page 75 Be careful not to get your fingers caught during installation. • Make sure the wall attachment panel brackets are tightened. Otherwise, the TV panel may fall down. • Please secure the mounting bracket on the wall surface after setting its angle at 0°. 11-10 Samsung Electronics...
  • Page 76 TV before moving it, as the stand may fall and could cause serious injury. Two or more people should carry the TV. Never lay the TV on the floor because of possible damage to the screen. Always store the TV upright. Samsung Electronics 11-11...
  • Page 77 MEMO 11-12 Samsung Electronics...

  • Page 78: Chapter 12 Disassembly & Reassembly

    : Please lay the PDP unit face down on a soft surface when removing the stand. 12-1-2 Separation of ASSY COVER-STAND CABLE Part Name Description Description Photo Cover- ① Remove 4 screws on the SPEAKER-COVER Stand : BH,+,B,M4,L12,ZPC(BLK) ② Remove the SPEAKER-COVER. Samsung Electronics 12-1...
  • Page 79 : BH,+,B,M4,L12,ZPC(BLK) ② Remove the ASSY POWER IR Board. 12-1-5 Separation of ASSY COVER SPEAKER Part Name Description Description Photo Cover ① Remove the 18 screws on the speaker cover. Speaker : BH,+,B,M4,L12,ZPC(BLK) ② Remove the SPEAKER-COVER. 12-2 Samsung Electronics...
  • Page 80 ③ Remove the Main Board. 12-1-8 Separation of ASSY COVER P-REAR SUB Part Name Description Description Photo Cover P- ① Remove 4 screws. Rear Sub : BH,+,-,S,M4,L8,ZPC(BLK) ② Remove 2 screws. : BH,+,B,M4,L8,ZPC(BLK) ③ Remove the sub cover. Samsung Electronics 12-3...
  • Page 81 12-1-10 Separation of ASSY LOGIC BOARD Part Name Description Description Photo Flat Cable ① Take care when separating the Logic Board not to damage the Flat-Cable Connector Cover. Logic Board ① Remove 4 screws. : PH,+,WWP,M3,L8,NI PLT ② Remove the Logic Board. 12-4 Samsung Electronics...
  • Page 82 ① While pressing the connector, apply slight force toward the direction of the cable to release the connector. ① Remove the Flat cable. ① Remove 4 screws. : PH,+,WWP,M3,L8,NI PLT ② Detach all reamining connectors from the X-Drive Board. ③ Remove the X-Drive Board. Samsung Electronics 12-5...
  • Page 83 Connectors ① Separate the Scan Boards from the Y-Main Board by detaching the 2 connectors and remove the Scan Boards. Y Drive ① Remove 5 screws. : PH,+,WWP,M3,L8,NI PLT ② Detach all connectors from the Y-Main Board and remove the Y-Main Board. 12-6 Samsung Electronics...
  • Page 84 : Please lay the PDP panel face down on a soft surface when separating front cover. ③ Remove 16 screws. : BH,+,S,M4,L10,ZPC(BLK) TCP Cover ① Remove 3 screws. : PH,+,WWP,M3,L8,NI PLT ② Remove TCP covers. Buffer ① Remove 10 screws. : PH,+,WWP,M3,L8,NI PLT ② Remove the E-Board, F-Board. Samsung Electronics 12-7...
  • Page 85 MEMO 12-8 Samsung Electronics...

  • Page 86: Chapter 13 Circuit Description

    4. If the VS_ON signal from the Logic Board changes from Low to High, the Main SMPS supplies VS power to the X and Y Drive Board through the DC-DC SMPS, and the screen displays a picture on it. Samsung Electronics 13-1...

  • Page 87: Partial Block Descriptio

    SMPS on or off, handles the Caption signal, and controls the signal for the ⑥ LEDs on the front panel. MSP4410G Sound processor Sound Processing IC ⑦ NSP6241 Sound Effect chip Sound PWM IC ⑧ TMQZ6-405A Tuner Tuner CH Tuning and CVBS, SIF ⑨ 13-2 Samsung Electronics...
  • Page 88 It senses the illumination and automatically OP001 adjusts the screen brightness according to the surrounding brightness when the Power Saving Mode of the User menu is set to Auto. 13-2-3 Function Key Board Function Key. Located on the side of the unit. Samsung Electronics 13-3...
  • Page 89 Signal 5.3V 5.3V 1 ■ 1 ■ 1 ■ FAN-D 1 ■ VT(33V) 5.3V FAN-ON RTN_AMP STB5V RTN_AMP 18V_AMP 5.3V PS-ON 18V_AMP PS-ON VS-ON STB 5V 5.3V 5.3V ※ CN811, CN806, CN807 and CN808 are not used. 13-4 Samsung Electronics...
  • Page 90 (components, PCB traces,connectors,etc.) under the input conditions specified in Section 3 above. Current Protection as defined below. Output Over Current Limit Unit VS(210V) 20A, Constant Current.(TBD) VA(70V) 10A, Constant Current.(TBD) Output except Vs,Va No damage (Auto Recovery or Shut down.) Samsung Electronics 13-5...
  • Page 91 Pin No Signal CN2501(E-Buffer), Pin No Signal 1 ■ 1 ■ CN2701(G-Buffer) 5.3V 1 ■ Pin No Signal 1 ■ Vset 5.3V Vscan 5.3V 5.3V (6) D5.3V, Vg, Ve Test Point (7) Va, Vset, Vscan Test Point 13-6 Samsung Electronics...
  • Page 92 Feedback Switching Block Block DC DC SMPS receives Vs input (195~215V) from the Main SMPS and the necessary Vscan, Vset and Ve voltages are output to operate the PDP Module as shown in the block diagram above. Samsung Electronics 13-7...
  • Page 93 ④ ASSY PDP P-LOGIC BOARD Logic Board ⑤ ASSY PDP P-ADDRESS E BUFF BOARD Address E Buffer Board ⑥ ASSY PDP P-ADDRESS F BUFF BOARD Address f Buffer Board ⑦ 1. Logic Block ■ Logic Block Diagram 13-8 Samsung Electronics...
  • Page 94 - Outputs the XY Drive Board Control Signal E Buffer Board Outputs data and control signals to the bottom left TCP IC. Buffer Board F Buffer Board Outputs data and control signals to the bottom right TCP IC. Samsung Electronics 13-9...
  • Page 95 If the measured waveform is different from the following waveforms, the board must be replaced. To check the waveforms, refer to the following waveform patterns. Figure 2. Normal V-SYNC Output Waveform Figure 3. Normal Address Data Output Waveform 13-10 Samsung Electronics...
  • Page 96 In addition, a weak discharge is introduced, because the applied voltage is low. Samsung Electronics 13-11...
  • Page 97 Vsc_h : -70V - Scan high bias (Created by the DC-DC power block of the Y Drive board) g) Vdd : 5V - Logic signal buffer IC and IPM h) Vcc : 15V - Gate drive IC ¹× IPM - Logic Signal : Supplied by the Logic board. Gate signal of each switch 13-12 Samsung Electronics...
  • Page 98 This board supplies the Scan waveform to the Y port and consists of Upper and Lower boards. For an HD grade unit, 6 scan dri- ver ICs (TEXAS INSTRUMENT SN755867APZP: 64 outputs) are mounted on the board. Samsung Electronics 13-13...
  • Page 99 By floating the Odd line that caused the Sustain Discharge in the IDS section to the Vscan-h level, and introducing the Sustain Discharge only for Even lines, it compensates for the optical output difference between the Even and Odd lines. 6) CMS Pulse (ComMon Sustain Pulse) Actual optical is output during the common Sustain Discharge section. 13-14 Samsung Electronics...
  • Page 100 FET2 short circuits, GND is output via the output terminal. 2) When a signal is applied to G1, FET1 short cir cuits and when no signal is applied to G2, FET2 is opened, and 180V is output via the output terminal. Samsung Electronics 13-15...
  • Page 101 2. VCC 3. GND CN4004 4. NC CN4000 5. Ve - Power - Panel 6. NC 7. GND 8. GND 9. NC 10. Vs 11. Vs 310mm CN4002 - Panel CN4001 CN4003 - Panel - Signal 140mm 13-16 Samsung Electronics...
  • Page 102 - Panel 3. NC 310mm CN5003 4. GND 5. NC - Power 6. Vset 7. NC 8. GND 9. Vscan 10. GND CN5502 CN5004 11. VCC - Panel 12. VDD - Signal CN5005 CN5503 185mm - Panel Samsung Electronics 13-17...
  • Page 103 OU T L ( 3 5 ~ 3 8 ) OU T L ( 1 7 ~ 3 4 ) CN5404 Y - B u f f e r (L o w ) Y - B u f f e r (U P ) 13-18 Samsung Electronics...
  • Page 104 - Connect the Y Main and Y Buffer, and confirm that the output from TP (line4, line383) of the Y Buffer UP is the same as #Attachment 1 when the power is supplied. T P (l i n e 4 ) T P (l i n e 3 8 3 ) Samsung Electronics 13-19...
  • Page 105 DC-DC Power Falling Ramp variable resistor <Y-Main> ※ The Vsc_h and Vnf voltages are controlled by the DC-DC power part of the Y Main board. <Voltage Adjustment Specifications> Vset Vsc_l Vsc_h 195V 210V -190V -70V 100V -175 13-20 Samsung Electronics...
  • Page 106 - Check that the output of X-Out of the X board follows the waveform of #Attachment 2 when the power is supplied. CN4004 CN4000 - Power - Panel CN4002 X - OU T - Panel CN4001 CN4003 - Panel - Signal Samsung Electronics 13-21...
  • Page 107 Circuit Description ※ Attachment 1 ■ Y Output Waveform The Scan Waveform Must Be Observed Y Output Waveform (200us/div, 100V/div) 1us/div, 100V/div (Sustain Waveform) 13-22 Samsung Electronics...
  • Page 108 Circuit Description ※ Attachment 2 ■ X Output Waveform X Output Waveform (200us/div, 100V/div) 2us/div, 100V/div (Sustain Waveform) Samsung Electronics 13-23...

  • Page 109: New Circuit Description

    R_ASL_GAIN value by 5 per second according to the changed Lux 9 ~ 22 value. 23 ~ 35 - If more than 3 communication errors or saturation (count1>count0) is Else 128 (default) detected, the default value is set (R_ASL_GAIN=128). 13-24 Samsung Electronics...
  • Page 110 APC Table can be shifted by adjusting the R_P_Lower_Gain value only. Therefore, the sustain pulse is controllable for the white pattern, even though it was formerly not controllable. Number of Sustain Pulses ※ Caution: The Super Power Saving Mode screen is darker than that of Standard Mode. Samsung Electronics 13-25...
  • Page 111 MEMO 13-26 Samsung Electronics...

  • Page 112: Chapter 14 Reference Information

    SVP-XXL6HD have a size adjustment feature to 16:9, 4:3, Panorama, Zoom1, Zoom2 and Auto device: Wide. This is about the aspect ratio of the top and bottom boundaries to the overall screen and users can select their preference. Samsung Electronics 14-1...
  • Page 113 Ex: For LCD 15:9 devices, "Wide" is displayed on the OSD instead of "16:9". 4. The picture size can be changed even in the blue screen. However, the picture size should be controlled by the product specifications if the change is impossible due to hardware restrictions. 14-2 Samsung Electronics...

  • Page 114: Technical Terms

    While the aspect ratio of a normal TV is 4：3, that of a wide a single channel only. screen is 16：9. Through a mono interface, it is hard to experience stereophonic sound and the sound is played using only one speaker. Samsung Electronics 14-3...
  • Page 115 Anynet is an AV network system that enables an easy-to-use camcorder, DTV receiver, DVD, etc. as a video source. AV interface for users by controlling all connected AV devices through the Anynet menu when the AV devices of Samsung Satellite Broadcasting Electronics are connected.
  • Page 116 Therefore, if someone says that a 5000:1 contrast displays a color by 5000 levels, he is confusing Contrast with Gradation. Brightness Brightness is the brightness per unit screen area, the unit for brightness is candela (cd). For example, 1000cd/m2 means the brightness that is measured when 1000 candles are lit within 1 square meters area. Samsung Electronics 14-5...
  • Page 117 The Color reproductivity of a TV is a certain % of NTSC. This means the TV displays that particular % of the color coordinate area of the NTSC signal broadcast by the broadcasting station. In general, a CRT TV provides the highest functional color reproductivity. 14-6 Samsung Electronics...
  • Page 118 © Samsung Electronics Co., Ltd. Dec. 2006 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea Any unauthorized use of Manual can be punished under applicable AA82-04281A International and/or domestic law.

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