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Samsung PS42B451B2WXXU Service Manual
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Samsung PS42B451B2WXXU Service Manual

Plasma display tv. chassis : f65a(p_hd)_b450
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SERVICE
PLASMA DISPLAY TV
Refer to the service manual in the GSPN (see the rear cover) for the more information.
PLASMA DISPLAY TV
Chassis : F65A(P_HD)_B450
Model : PS42B451B2WXXU
PS50B451B2WXXU
Manual
PS42B451B2W
PS50B451B2W
CONTENTS
1. Precaution
2. Product Specification
3. Disassembly & Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram

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Summary of Contents for Samsung PS42B451B2WXXU

  • Page 1 PLASMA DISPLAY TV Chassis : F65A(P_HD)_B450 Model : PS42B451B2WXXU PS50B451B2WXXU SERVICE Manual PLASMA DISPLAY TV CONTENTS 1. Precaution 2. Product Specification 3. Disassembly & Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram PS42B451B2W PS50B451B2W Refer to the service manual in the GSPN (see the rear cover) for the more information.
  • Page 2 Mideast & Africa mea.samsungportal.com © Samsung Electronics Co., Ltd. Mar. 2009 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea Any unauthorized use of Manual can be punished under applicable AA82-05739A International and/or domestic law.

  • Page 3: Table Of Contents

    ■ 5-1 PS42B451B2WXXU Exploded View ........
  • Page 4 Part Name Description Description Photo Cover Remove 17 screws. ( Rear : BH,+,B,M4,L3,ZPC(BLK) Remove 6 screws. ( : PH,+,WSP,S,M4,L35,ZPC(BLK) Remove the rear cover. : Please lay the PDP unit face down on a soft surface when removing the stand. Samsung Electronics...
  • Page 5 50" is very similiar with 42". <50"> 3-1-3 Separation of FILTER-EMI AC LINE Part Name Description Description Photo FILTER- Detach connector from SMPS. AC LINE Remove 2 screw. ( : PH,+,WWP,M3,L8,NI PLT Remove 1 screws.( : BH,+,S,M4,L10,ZPC(BLK) Separate FILTER-EMI AC LINE from bracket. Samsung Electronics...
  • Page 6 Description Photo Bracket Remove screw.( ) : BH,+,B,M4,L3,ZPC(BLK) Remove the BRACKET-PCB. 3-1-5 Separation of ASSY BRACKET 42"/50" Part Name Description Description Photo Bracket Remove 2 screws. ( : BH,+,PT,S Tite,M4,L10,ZPC(BLK) Remove 2 screws. ( : BH,+,B,M4,L3,ZPC(BLK) Remove Bracket. Samsung Electronics...
  • Page 7 : BH,+,S,M4,L10,ZPC(BLK) Remove Wall Bracket. 3-1-7 Separation of ASSY SPEAKER P Part Name Description Description Photo Speaker Remove 4 screws.( ) : BH,+,WP,B,M4.0,L3,ZPC(BLK), SWRCH18A Remove the Speaker. The photo is for 42". 50" is very similiar with 42". Samsung Electronics...
  • Page 8 Remove the SMPS. 3-1-9 Separation of ASSY PDP MODULE P-LOGIC MAIN BOARD Part Name Description Description Photo Logic Detach all connectors from the Logic Board Main Board. Remove 2 screws. : WSP,PH,+,M3,L8,NI PLT Remove the Logic Main Board. Samsung Electronics...
  • Page 9 : Pinch the sides, but then push down in the ribbon, it should slide out after that. 42" Remove 7 screws. X-Main : PH,+,WWP,M3,L8,NI PLT Board Remove the X-Main Board. 50" Remove the X-Main Board. X-Main Board Samsung Electronics...
  • Page 10 Part Name Description Description Photo 42" Detach the scan board connectors from the panel . Flat Cable 50" Detach the scan board connectors from the panel . Flat Cable 42" Remove 2 screws. Y-Scan : PH,+,WWP,M3,L8,NI PLT Board Samsung Electronics...
  • Page 11 Before removing the still bar, you should lift up the panel a little. 50" Remove 3 screws. Buffer : PH,+,WWP,M3,L8,NI PLT board shield Remove the still bar. Before removing the still bar, you should lift up the panel a little. Samsung Electronics...
  • Page 12 Disassembly & Reassembly 3-1-13 Separation of ASSY PANEL BRACKETS Part Name Description Description Photo Panel Remove 7 screws. ( Brackets : BH,+,B,M4,L3,ZPC(BLK) Remove the Side Panel Brackets. Samsung Electronics...
  • Page 13 MEMO 3-10 Samsung Electronics...
  • Page 14 Exploded View & Part List 5. Exploded View & Part List Exploded View PS42B451B2WXXU Samsung Electronics...
  • Page 15 ASSY COVER P-FRONT PB450 42,ABS+PMMA,HB, S.N.A T0044 BN96-10452B ASSY PDP MODULE P SA42AX-YD11,PP42AB057B T0175 BN96-09464A ASSY SPEAKER P 8ohm,4pin,10W,R:850 / L:3 T0289 BN63-05298A COVER-AV 50PB550,ABS HB,BLK(BK500) T0456 BN67-00248A GLASS-FILTER EMI 42" P450,With AR, Witho T0603 BN64-01013A WINDOW-RMC 42PB450,PC,VIOLET S.N.A Samsung Electronics...
  • Page 16 Exploded View & Part List Exploded View PS50B451B2WXXU Samsung Electronics...
  • Page 17 ASSY COVER P-FRONT PB450 50,ABS+PMMA,HB, S.N.A T0044 BN96-09931A ASSY PDP MODULE P S50HW-YD11,PP50HB056B, T0175 BN96-09464B ASSY SPEAKER P 8ohm,4pin,10W,R:850 / L:3 T0289 BN63-05298A COVER-AV 50PB550,ABS HB,BLK(BK500) T0456 BN67-00251A GLASS-FILTER EMI 50" P550,With AR, Witho T0603 BN64-01013A WINDOW-RMC 42PB450,PC,VIOLET S.N.A Samsung Electronics...
  • Page 18 Exploded View & Part List Service Item PS42B451B2WXXU ※ This is the list which is available to repair the real material at the time of service. Loc. No. Code No. Description Specification Q'ty Remark M0013 BN96-10205D ASSY COVER P-REAR PB450 42,PCM,BKM-P703,...
  • Page 19 ASSY PDP P-X-MAIN BUFFER BOARD S50HW-YB0 T0074 BN59-00863A REMOCON LCD450,TM950,EUROPE,WHITE,48 T0175 BN96-09464B ASSY SPEAKER P 8ohm,4pin,10W,R:850 / L:3 T0262 BN96-09738A ASSY PDP P-Y-MAIN BOARD S50HW-YB04,PL50H T0764 BN44-00274B SMPS-PDP TV 50U1_DY,P0842A,AC/DC,439.03W T0937 BN96-09740A ASSY PDP P-ADDRESS E-BUFFER BO S50HW-YB0 Samsung Electronics...
  • Page 20 MEMO Samsung Electronics...

  • Page 21: 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 22 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 23: 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 24: 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 25: 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 26 MEMO Samsung Electronics...

  • Page 27: Chapter 2 Product Specification

    2. Product Specification 2-1 Product Specification Features Block Specification Major IC Remark Tuner Digital/Analog (DTV Built In) DNOQ403SH151A SAMSUNG PDP Module Samsung SDI U1P Module 42"HD/50"HD New Module Samsung/Dong-yang electro Power mechanics SMPS NTSC 3.58, ATSC Video HDMI SEMS12 Component, PC...
  • Page 28 Product Specification ■ ■ New Features explanation - Anynet+ : Anynet+ is an AV network system that enables you to control all connected Samsung AV devices with your Samsung TV's remote. Samsung Electronics...

  • Page 29: Specifications Analysis

    Digital Noise Reduction Low Noise Amplifier Sound Effect System SRS TruSurround XT SRS TruSurround XT SRS TruSurround XT SRS TruSurround XT Audio Speaker Sound output (RMS) 10W x 2 10W x 2 10W x 2 10W x 2 Samsung Electronics...

  • Page 30: Accessories

    Item code Remark Remote Control BN59-00863A Batteries 3301-001305 Power Cord 3903-000193 Owner's Instructions BN68-01936D Warranty Card BN68-01349A Registration Card Samsung Service center Safety Guide Manual Cloth-Clean BN63-01798A Ferrite Core for 3301-001305 Power Cord Cover-Bottom BN63-05300A Screws (2ea) 6003-001621 HDMI Cable BN39-00641A 9.843 feet...
  • Page 31 Product Specification Accessories Item Item code Remark Optical Cable None PC Cable BN39-00115A 6.004 feet Electronics Store/ Internal shopping mall PC Audio Cable BN39-00061B 6.562 feet Antenna Cable BN39-00333A 9.843 feet Samsung Electronics...
  • Page 32 MEMO Samsung Electronics...

  • Page 33: Chapter 4 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 Main Board, and between the Logic Boards. Samsung Electronics...
  • Page 34 Is the Fuse (F801S) of the SMPS ① Replace Fuse (F801S) Power Input Part blown? SMPS CN801 ② Pin 3 : STB 5V Replace the SMPS Pin 2 PS-ON : Check to see if it is 0V Replace the Main Board Samsung Electronics...
  • Page 35 Is the Fuse (F801S) of the SMPS ① Replace Fuse (F801S) Power Input Part blown? SMPS CN801 ② Pin 3 : STB 5V Replace the SMPS Pin 2 PS-ON : Check to see if it is 0V Replace the Main Board Samsung Electronics...
  • Page 36 X Main Board, and CN5707 of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after disconnecting the power cord from the unit. Samsung Electronics...
  • Page 37 X Main Board, and CN5707 of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after disconnecting the power cord from the unit. Samsung Electronics...
  • Page 38 When separating and connecting the cables such as CN810, CN809, CN807 of the Main SMPS, CN4701 of the Caution X Main Board, and CN5707 of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after disconnecting the power cord from the unit. Samsung Electronics...
  • Page 39 When separating and connecting the cables such as CN810, CN809, CN807 of the Main SMPS, CN4701 of the Caution X Main Board, and CN5707 of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after disconnecting the power cord from the unit. Samsung Electronics...
  • Page 40 Is the output voltage of SMPS normal? ② (CN801 #13) Replace the SMPS Is the speaker output terminal of the Main Board normal? Replace the Main Board ③ Replace the Speaker Samsung Electronics...
  • Page 41 Is the output voltage of SMPS normal? ② (CN801 #13) Replace the SMPS Is the speaker output terminal of the Main Board normal? Replace the Main Board ③ Replace the Speaker Samsung Electronics...
  • Page 42 - Check the CVBS cable connection. - Check the power input of the Main board. Troubleshooting Procedures Is the antenna connection setting properly configured? Configure properly ① Check CN1001 pin2 for +5V Replace the SMPS Replace the Main Board 4-10 Samsung Electronics...
  • Page 43 Some horizontal lines appear to be linked on screen Scan Buffer, FPC of X/Y Address Open Some vertical lines don't exist on screen Logic Main, Logic Buffer, TCP Address Short Some vertical lines appear to be linked on screen Logic Main, Logic Buffer, TCP Samsung Electronics 4-11...
  • Page 44 ① No Display ▶ No Display is related with Y-MAIN, X-MAIN, Logic Main and so on. This page shows you how to check the boards, and the following pages show you how to find the defective board. 4-12 Samsung Electronics...
  • Page 45 ② Abnormal Display(Abnormal Image is on Screen.(except abnormality in Sustain or Address)) ▶ Abnormal Display is related with Y-MAIN, X-MAIN, Logic Main and so on. This page shows you how to check the boards, and the following pages show you how to find the defective board. Samsung Electronics 4-13...
  • Page 46 ▶ Address Open and Short is related with Logic Main, Logic Buffer, FFC, TCP film and so on. This page shows you how to check the boards, and the following pages show you how to find the defective board. 4-14 Samsung Electronics...
  • Page 47 - Check the version of each program - Replace the Main board A blank upper (or lower) block Upper/Lower Y Buffer defect appears on the screen. - Replace the corresponding upper/lower buffers (E, F) Samsung Electronics 4-15...
  • Page 48 - Adjust the SMPS voltage according to the voltage printed on the module label Dim screen (blurred in red) X-Main board defect - Replace the X-Main board A blank screen appears - Replace the Y-Main board 4-16 Samsung Electronics...
  • Page 49 ASSY PDP MODULE P-ADDRESS F BUFFER Corresponding Buffer Board block screen is blank. ASSY PCB MISC-MAIN No Power, Abnormal screen for each input source, PIP screen trouble, Sound trouble ASSY BOARD P-FUNCTION The side function key does not work properly Samsung Electronics 4-17...
  • Page 50 ① Write down the value of HDMI White Balance of Factory Mode before replacing Board. ② PDP Option of Factory Mode → set the Factory Data Type item as the suitable value of relevant model. ③ Set the value of HDMI White Balance with the value written down before. 4-18 Samsung Electronics...
  • Page 51 ※ The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to change for the improvement of product functions. ※ If you have adjusted the settings in Service Mode, you have to reset the product. Samsung Electronics 4-19...
  • Page 52 EDID WRITE PC Failure wait/Success EDID WRITE DVI Failure wait/Success EDID WRITE HDMI1 Failure wait/Success EDID WRITE HDMI2 Failure wait/Success EDID WRITE HDMI3 Failure wait/Success EDID WRITE HDMI4 Failure wait/Success EDID VERSION HDMI 1.2 HDMI 1.3 4-20 Samsung Electronics...
  • Page 53 High Devi Volume Curve Hotplug Delay 0/63 HP Ident High PC Ident Language Chiha French/English Info Live Watchdog LVDS Format JEDIA VESA OSD Resolution 1024*768 Bus Stop OTA Code Panel Auto Setting OTA Duration Test Alternate Del Samsung Electronics 4-21...
  • Page 54 Video Mute Ch On/Off Music Mode (AV) Music Mode (PC) Music Mode (Comp) Music Mode Backlight Menu Display Power On Option Last Option Standby/Power On Auto PC Energy Saving Low/Mid/High/Auto Cloning : TV to USB Cloning : USB to TV 4-22 Samsung Electronics...
  • Page 55 Nicam Sig Error Off 0x14 0x7F Compression mode Dolby Test Mode DTV Level -12dB Master Vol 0/47 PWM Modulation 0/255 DRC1 Threshold 0x37 0xFF DRC2 Threshold 0x50 0xFF SPEAKER EQ SC1 Vol 0/40 SC2 Vol 0/40 Audio delay 60ms 0ms/150ms Samsung Electronics 4-23...
  • Page 56 Wait/Failure COMP Calibration PC Calibration HDMI Calibration ADC Target Item Default data Range 1st_AV_Low 0/255 1st_AV_High 0/255 1st_AV_Delta 0/255 1st_Comp_Low 0/255 1st_Comp_High 0/255 1st_Comp_Delta 0/255 1st_PC_Low 0/255 1st_PC_High 0/255 1st_PC_Delite 0/255 2nd_Low 0/255 2nd_High 0/255 2nd_Delta 0/255 4-24 Samsung Electronics...
  • Page 57 1st_PC_R_Offset 1st_PC_G_Offset 1st_PC_B_Offset 2nd_R_Offset 0/255 2nd_G_Offset 0/255 2nd_B_Offset 0/255 2nd_R_Gain 0/255 2nd_G_Gain 0/255 2nd_B_Gain 0/255 Item Default data Range Sub Brigntness 0/255 R_Offset 0/255 G_Offset 0/255 B_Offset 0/255 Sud Contrast 0/255 R_Gain 0/255 G_Gain 0/255 B_Gain 0/255 Samsung Electronics 4-25...
  • Page 58 W2_BGAIN 0/255 W2_ROFFS 0/255 W2_BOFFS 0/255 N_RGAIN 0/255 N_BGAIN 0/255 N_ROFFS 0/255 N_BOFFS 0/255 Movie Contr 0/100 Movie Brigh 0/100 Movie Color 0/100 Movie Sharp 0/100 Movie Tint 0/100 Move BkLight 0/10 M.Gamma 0.85/0.88/0.90/0.93/0.95/0.98/M1/M2/M3/M4 M_Sub Gamma 3/-3 4-26 Samsung Electronics...
  • Page 59 PDP FRC Visual Test Disable Enable Standby Mode Time 45 Min 2 Min Delete alt.ver 2 Flash OTA confirm Time 90Min 2 Min OTA limit Time 3 hour 3 Min Dynamic CE 1080p 48Hz PWM Max 1/100 Samsung Electronics 4-27...
  • Page 60 Range Skin_x 0x00 0x00/0x0A Skin_y 0x00 0x00/0x0A B_slope 0x90 0xA0/0x9F DLC_ML 0x70 0xA0/0x9F DLC_MH 0x70 0xA0/0x9F DLC_H 0xEB 0x00/0xFF Skin_SAT 0x00 0x00/0x0F Skin_HUE 0x40 0x00/0x7F M_Skin_HUE 0x40 0x00/0x7F M_Skin_X 0x00 0x00/0x0A M_Skin_Y 0x00 0x00/0x0A Mid_color_level 0xB4 0x00/0xFF 4-28 Samsung Electronics...
  • Page 61 Yellow Sat 0x15 0x00/0x1E Yellow Hue 0x10 0x00/0x7F FWC Blue 0x15 0x00/0x1E FWC Red 0x0F 0x00/0x1E EEPROM RESET Item Default data Range EEPROM RESET NVR ALL Clear Expert Item Default data Range N/D ADJ On/FIX SOURCE Current Samsung Electronics 4-29...
  • Page 62 Perform in NTSC B&W Pattern #24 Lattice Component IN (Model_#6) Perform in 720p B&W Pattern #24 Lattice Perform in VESA XGA (1024x768) PC Analog IN (Model_#21) Lattice B&W Pattern #24 HDMI IN Perform in 720p B&W Pattern #24 Lattice <Table 1> 4-30 Samsung Electronics...
  • Page 63 6) In "HDMI Calibration Off" status, press the "▶" key to perform Calibration. 7) When Calibration is complete, it returns to the high-level menu. 8) You can see the change of the "HDMI Calibration" status from Failure to Success. Samsung Electronics 4-31...
  • Page 64 3. Pattern : Pattern #92 4. Use Equipment : MIK-7256 (MSPG925L) ( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD ) 5. Work order ① Connect HDMI (DVI) output terminal of MIK-7256 (MSPG925L) to the HDMI input in main set ② Set the input to HDMI mode ③...
  • Page 65 10,500 (± 0) (Sub_CT:128) CVBS (NTSC) 10.5 cd/㎡ 11,000 (-3) (3.0 Ft) 10,500 (± 0) (Sub_CT:128) COMP (720P) 10.3 cd/㎡ 11,000 (-6) (3.0 Ft) 10,500 (± 0) (Sub_CT:128) HDMI (720P) 10.3 cd/㎡ 10,500 (± 0) (3.0 Ft) Samsung Electronics 4-33...
  • Page 66 ASSY PDP MODULE P-ADDRESS E BUFFER ASSY PDP MODULE P-ADDRESS F BUFFER ASSY BOARD P-SIDE HDMI A/V ※ When replacing the SMPS or PDP panel, you have to check the voltage printed on the panel sticker and adjust it. 4-34 Samsung Electronics...
  • Page 67 1. After replacing the SMPS or PDP panel, you must adjust the voltage referring to the voltage label printed on the panel. (If you do not adjust the voltage, an abnormal discharge symptom may appear.) Value Board Adjustment Vset SMPS Vscan -190 2. A point of adjusting SMPS-MAIN voltage. Samsung Electronics 4-35...
  • Page 68 Set the main reset (rising : 60usec, falling : 80usec) by change the value of variable resistor. Rising ramp variable resistor 60usec 80usec Falling ramp variable resistor ▶The picture is only for 50". 42" has only Falling ramp variable resistor. 4-36 Samsung Electronics...
  • Page 69 It takes about 30 sec. (Warning: Don't remove USB flash driver during upgrade.) ⑨ The banner OSD "Upgrade is completed" is displayed when the upgrade is completed. ⑩ Remove the USB flash driver from PDP TV and check the program version. Samsung Electronics 4-37...
  • Page 70 ② Place the cursor over the "SW Upgrade" of "Setup" and press the "info" key on the remote control. ③ The version of the program is displayed at the bottom of the Menu screen 2. How to check Program Version on factory mode. 4-38 Samsung Electronics...
  • Page 71 MEMO Samsung Electronics 4-39...

  • Page 72: Chapter 6 Wiring Diagram

    CN807 CN5501 CN4001 CN4004 CN5409 CN2006 CN2001 CN2000 CN5412 CN5502 CN5701 CN2002 CN2003 LOGIC BOARD CN2028 CN2004 AC-INLET CN5503 E-BUFFER F-BUFFER CN2509 CN2500 CN2600 CN2609 CN2610 CN2510 CN902 FUNCTION CN101 MAIN BOARD CN202P CN201 CN401 POWER SW SPEAKER Samsung Electronics...
  • Page 73 CN201 CN401 POWER SW SPEAKER ※ The code number of cable(Lead-connector) can be changed, see "5. Exploded View & Part List." ① LVDS ⑧ POWER CABLE ⑪ AC INLET 42" - BN96-07158K Code BN39-00827A BN96-07190A 50" - BN96-07158F Photo Samsung Electronics...
  • Page 74 CN5407_50"(Y B'D) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal D5.3V R+_OUT R-_OUT D5.3V L+_OUT L-_OUT LED_STB BUZZER KEY_INPUT1 ⑪ CN800(SMPS) KEY_INPUT2 ↔ AC INLET Pin No. Signal AC Neutral AC Live Samsung Electronics...
  • Page 75 Power SW input connect on Main Board CN1203 CN1203 Speak out connect on Main Board CN101 CN101 Video signal input connect on Side AV ass'y Function input(source,ch up/down...) connect to Main board Power SW input connect to Main Board Samsung Electronics...

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