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Samsung PS50Q97HDX/XEU Service Manual Download Page 34

Troubleshooting

Samsung Electronics

4-7

STD_5V

Normal

PS-ON

Abnormal

Check the ICB802, DB864, FB801, F801S

Power ON

VA

Multi

Abnormal

Abnormal

Normal

VS-ON

VS

Normal

Abnormal

Check the Other board (Image Board or Driver Board) or Cable.

Check the SUB2, QX801,QX802

Check the SUB1,QS801,QS802

Check the
5.3V 

: ICX808, QX806

12V : 

ICX803

VG : 

ICX805

18Vamp :  ICX804

■

SMPS Troubleshooting

Summary of Contents for PS50Q97HDX/XEU

Page 1: ...y 4 Troubleshooting 5 Exploded View Part List 6 Wiring Diagram 7 Schematic Diagram VHUYLFH Pdqxdo PS 42Q97HD PS 50Q97HD SGS0WHOHYLVLRQ Fkdvvlv I63D SbHxurshbKG bFdood Prgho SV75T KG 2 HX SV83T KG 2 HX...

Page 2: ...tic law Samsung Electronics Co Ltd Mar 2007 Printed in Korea AA82 04355A Area Web Site North America service samsungportal com Latin America latin samsungportal com CIS cis samsungportal com Europe eu...

Page 3: ...s 2 4 Chapter 3 Disassembly Reassembly 3 1 Overhaul Disassembly Reassembly 3 1 Chapter 4 Troubleshooting 4 1 Troubleshooting 4 1 4 2 Adjustment 4 16 4 3 Upgrade 4 32 Chapter 5 Exploded View Part List...

Page 4: ...nsulated transformers the product can only be repaired safely when the chassis is connected to the earth end of the AC power source To make sure the AC power cord is properly connected follow the inst...

Page 5: ...placed with another irregular one the safety or protective features will be lost even if the new one has a higher voltage or more watts Critical safety parts should be bracketed with Use only regular...

Page 6: ...stance between the blade of the AC plug and that of the conductive material should be more than 1 7 Any B interlock should not be damaged If the metal heat sink is not properly installed no connection...

Page 7: ...s for soldering purposes 6 Use only anti static solder removal devices Most solder removal devices do not support an anti static feature A solder removal device without an anti static feature can stor...

Page 8: ...sitioning 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 6 Keep the antenna far away from any high...

Page 9: ...1 6 Samsung Electronics MEMO...

Page 10: ...Screen Size 42 Inches 16 9 50 Inches 16 9 Dimensions WxHxD 1055 x 759 x 316 mm With Stand 1231 x 848 5 x 316 mm With Stand Weight 33 2 kg With Stand 44 kg With Stand Voltage AC 100 240V 50 60Hz Colou...

Page 11: ...onnect only one receiver You can listen to 5 1 channel sound through the home theater s speakers Otherwise you can only listen to 2 channel stereo sound in other cases Make sure to connect the Digital...

Page 12: ...Contrast Ratio 10000 1 10000 1 10000 1 Image Enhacer FBE2X FBE2X FBE Audio Equalizer O O O Auto Volume O O O Surround Sound SRS TruSurround SRS TruSurround SRS TruSurround Speaker Output 10 W 10 W 15...

Page 13: ...Card Safety Guide Manual BN68 00514D AA68 03575A AA68 03242E Cloth Clean BN63 01798A Ferrite Core for Earphone Power Cord 3301 001110 Ferrite Core for S VIDEO Power Cord 3301 001305 Cover Bottom Screw...

Page 14: ...lectronics 2 5 Accessories Item Item code Remark Accessories that can be purchased additionally PC Cable 1830mm BN39 00115A Electronics Store Internal shopping mall PC Audio Cable 2000mm BN39 00061B A...

Page 15: ...2 6 Samsung Electronics MEMO...

Page 16: ...e the capacitors first when separating PCB s with high capacity capacitors such as SMPS X Main Board Y Main Board etc A spark may be generated by the electric charge and there is danger of electronic...

Page 17: ...Description Photo FILTER EMI AC LINE Detach connector from Main SMPS Remove 2 screws PH WWP M3 L8 NI PLT Remove a screw BH S M4 L10 ZPC BLK Remove FILTER EMI AC LINE 3 1 4 Separation of BRACKET PCB Pa...

Page 18: ...s BH S M4 L10 ZPC BLK Remove 2 screws BH B M4 L3 ZPC BLK Remove Bracket 50 Bracket Remove 4 screws BH S M4 L10 ZPC BLK Remove 2 screws BH B M4 L3 ZPC BLK Remove Bracket 3 1 6 Separation of ASSY BOARD...

Page 19: ...screws BH B M4 L3 ZPC BLK Remove 6 screws BH S M4 L10 ZPC BLK Remove Wall Bracket Please lay the PDP panel face down on a soft surface when separating front cover 50 Wall Bracket Remove 2 screws BH B...

Page 20: ...move 4 screws BH WP B M4 0 L3 ZPC BLK SWRCH18A Remove the Speaker 50 Speaker Remove 4 screws BH WP B M4 0 L3 ZPC BLK SWRCH18A Remove the Speaker 3 1 9 Separation of ASSY BOARD P POWER IR Part Name Des...

Page 21: ...ar gloves when handling the power board as there may be some remaining electrical charge in the capacitor Specifically avoid touching any part of the capacitor 50 SMPS Detach all connectors from the S...

Page 22: ...OARD Part Name Description Description Photo 42 Logic Board Detach all connectors from the Logic Main Board Remove 4 screws WSP PH M3 L8 NI PLT Remove the Logic Main Board 50 Logic Board Detach all co...

Page 23: ...Description Photo Flat Cable Detach all Connectors from the X Main Board To separate the Flat Cable of the X Board press the upper and the lower sides of the connector 42 X Main Board Remove 4 screws...

Page 24: ...ULE P Y MAIN BOARD Part Name Description Description Photo Flat Cable Detach the 6 scan board connectors from the panel by pulling the holder from both the top and bottom ends 42 Y Scan Board Remove 3...

Page 25: ...tronics Part Name Description Description Photo 42 Y Main Board Remove 4 screws PH WWP M3 L8 NI PLT Detach all connectors from the Y Main Board 50 Y Main Board Remove 4 screws PH WWP M3 L8 NI PLT Deta...

Page 26: ...s PH WWP M3 L8 NI PLT Remove the Still Bar 50 Still Bar Remove 4 screws PH WWP M3 L8 NI PLT Remove the Still Bar 42 Buffer Board Detach the all connectors from the buffer board Remove 3 screws PH WWP...

Page 27: ...2 screws BH B M4 L3 ZPC BLK Remove the Function Board Disassembly Reassembly 3 12 Samsung Electronics 3 1 15 Separation of ASSY PANEL BRACKETS Part Name Description Description Photo Panel Brackets R...

Page 28: ...or damaged cable 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 2 Check the power input to the Main Boar...

Page 29: ...properly connected or the Main Board or SMPS is not functioning In this case check the following Check the internal cable connection status inside the unit Check the fuses of each part Check the outpu...

Page 30: ...defective assemblies by connecting the cables one by one Troubleshooting Procedures Caution WHEN SEPARATING AND CONNECTING THE CABLES SUCH AS CN810 CN809 CN808 CN807 OF THE MAIN SMPS CN4701 OF THE X M...

Page 31: ...PARATING AND CONNECTING THE CABLES SUCH AS CN810 CN809 CN808 CN807 OF THE MAIN SMPS CN4701 OF THE X MAIN BOARD AND CN5707 OF THE Y MAIN BOARD A SPARK MAY BE GENERATED BY THE ELECTRIC CHARGE OF THE HIG...

Page 32: ...the Main Board is not functioning Speaker defect Troubleshooting Procedures Is the cable connection between the Main Board and the speaker properly connected Connect the cable properly or replace the...

Page 33: ...OK Major Checklist Check the antenna connection settings Air NTSC ATSC Cable NTSC Check the CVBS cable connection Check the power input of the Main board Troubleshooting Procedures Is the antenna con...

Page 34: ...2 DB864 FB801 F801S Power ON VA Multi Abnormal Abnormal Normal VS ON VS Normal Abnormal Check the Other board Image Board or Driver Board or Cable Check the SUB2 QX801 QX802 Check the SUB1 QS801 QS802...

Page 35: ...Image not open or short is no screen Y MAIN X MAIN Logic Main Sustain Open Some horizontal lines don t exist on screen Scan Buffer FPC of X Y Sustain Short Some horizontal lines appear to be linked o...

Page 36: ...tes a PSU output error Check the FUSE Check the input voltage YES NO YES NO Y MAIN Check several points FUSE FET DIODE Y MAIN Normal State Replace the Board Replace the Board OK OPEN SHORT OK F5001 fo...

Page 37: ...ard Replace the Board OK OPEN SHORT OK F5001 for VDD F5002 for Vs F5004 for VCC F5005 for OUT_L Q5009 Q5021 X MAIN Check several points FUSE FET X MAIN Normal State Replace the Board Replace the Board...

Page 38: ...check the status Done Defect is from Y buffer Replace the Panel There is a defect on the FPC OK NG Sustain Short some horizontal lines appear to be linked on Video Y FPC Sustain Short Discharging in u...

Page 39: ...ternal mode screen is normal Reload the data onto the MICOM and recheck it Check if there is an open or short circuit on the Buffer Board and the Logic Main address data output section Check the FFC c...

Page 40: ...upper lower buffers E F COF defect burnt Replace the module A green screen appears when the TV is turned on The Scale is not reseting Replace the Main board The OSD box appears but there is no text In...

Page 41: ...cture does not appear Replace the Main board A vertical green line appears on the screen The SMPS voltage is incorrect Adjust the SMPS voltage according to the voltage printed on the module label Dim...

Page 42: ...AIN SCAN BUFFER Row Bar screen is blank 6 ASSY PDP MODULE P ADDRESS E BUFFER Corresponding Buffer Board block screen is blank 7 ASSY PDP MODULE P ADDRESS F BUFFER Corresponding Buffer Board block scre...

Page 43: ...placement of Board If adjustment equipment is available PDP Option of Factory Mode set the Factory Data Type item as the suitable value of relevant model Adjust Calibration of Factory Mode for each mo...

Page 44: ...evel mode Using the Numeric 0 9 keys you can select a channel Using the SOURCE key you can switch AV modes 5 Initial SERVICE MODE DISPLAY State The version of the firmware displayed at the bottom of t...

Page 45: ...nel Type Normal1 Normal1 Normal1 Normal2 Model Option Bord Plus Bord Plus Call Lily Brod Plus Jasmine Tuner SEMCO SEMCO SEMCO ALPS Tuner TOP 8 8 0 31 Auto Power ON ON ON OFF Nordic OFF OFF ON OFF LNA...

Page 46: ...ain 00H FFH 128 128 128 128 B Gain 00H FFH 128 128 128 128 Item Range Y Filter 00H FFH Item Range RF AV Comp 480i Comp 480p Comp 720p Comp 1080i HDMI PC iDTV H2Gain 00 1FH 05H 05H 05H 05H 04H 04H 0AH...

Page 47: ...00H 00H 00H 00H Analog Y Offset 00H FFH 40H 3DH 44H 40H Analog PB Offset 00H FFH 80H 80H 44H 80H Analog PR Offset 00H FFH 80H 80H 44H 80H Analog Y Gain 00H FFH D6H B3H A4H 80H Analog PB Gain 00H FFH...

Page 48: ...00H Color Management 5 Option Block FRC Micronas FRC2X Item Range Initial value OUTCON 1 3 0 GAMMA 1 7 0 OCC_MODE 0 1 0 FALLBACK 0 1 0 DBG_MARK 0 1 0 SPR_CBR 0 1 0 BIT_EXPAND 0 1 0 INV_BIT_EXPAND 0 1...

Page 49: ...225 225 225 Mean Slope 0 255 56 56 45 45 85 85 85 85 Input Offset 0 255 128 128 128 128 128 128 128 128 Input Gain 0 255 128 128 128 128 128 128 128 128 ACR Offset 0 128 15 15 15 15 15 15 15 15 ACR Th...

Page 50: ...TEM Range Initial value ID Tone Shift 1H FH 01H ID Tone Thresh 00H FFH 7FH Demod Prescaler 00H 20H 13H Master Volume 00H 30H 13H PWM Modulation 80H F2H F1H DRC Threshold 00H 7FH 06H Speaker EQ ON OFF...

Page 51: ...c Contrast ON OFF ON Dynamic Dimming ON OFF ON Dynamic CE ON OFF OFF LNA PLUS RFDB 1 Level 0 255 2 RFDB 2 Level 0 255 5 RFDB 3 Level 0 255 7 RFDB 4 Level 0 255 24 Magazine LNA ON OFF OFF PixelShift Te...

Page 52: ...7 93 51 48 W2_R_OFFS 0 255 129 127 124 128 129 W2_B_OFFS 0 255 143 145 110 143 143 NO_RGAIN 0 255 141 139 137 141 141 NO_BGAIN 0 255 104 102 123 104 104 NO_R_OFFS 0 255 126 125 126 121 126 NO_B_OFFS 0...

Page 53: ...Mode PAL Video MODE 2 3 Pattern Pattern 24 Chess Pattern 4 Use Equipment K 7256 or Equipment of equality level 5 Work order 1 Enter by Factory Mode select 1 CALIBRATION 2 Select AV CALIBRATION again...

Page 54: ...80 720 60Hz Test Pattern MSPG 945 Series Pattern 16 Color temperature 1500K 500 6 20 MPCD Color coordinate H L 270 280 2 L L 270 280 3 2 1 Ft 0 05 Ft SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD...

Page 55: ...control confirm the data c Adjust the low light Refer to table 1 2 in adjustment position by mode Adjust sub Brightness to set the Y value Adjust red offset x and blue offset y to the color coordinate...

Page 56: ...tems listed after changing each Replaced assembly items Check Items ASSY PCB MISC MAIN 1 Auto Program 2 White Balance Adjust SMPS PDP TV Vs Va voltage check and adjust ASSY PDP MODULE P LOGIC MAIN Not...

Page 57: ...a Adjustment Va Test point Vs Test point Value Board Adjustment Vs 210 SMPS Va 63 Vset Ve 94 Vscan 190 Voltage Adjustment 1 After replacing the SMPS or PDP panel you must adjust the voltage referring...

Page 58: ...sung Electronics 4 31 Y RR and Y FR controls 60usec 80usec Test Point Rising ramp variable resistor Falling ramp variable resistor Set the main reset rising 60usec falling 80usec by change the value o...

Page 59: ...1 Connect Set Service Jack and Jig Cable to execute Program Update 2 Turn Off On Stand by mode the Set Run Down load tool 1 Check 2 Select MOT file by Open 3 Click Connect Button 4 Turn On the Set 5...

Page 60: ...e is displayed at the bottom of the menu as described on page 4 17 Panel ON Time Hour 0002 C4A_RMA 1 Calibration 7 YC Delay 2 Option Table 8 Adjust 3 White Balance 9 I2C Check 4 SVP UX 10 W B MOVIE 5...

Page 61: ...xploded View Part List 5 Exploded View Part List 5 1 PS42Q97HDX XEU Exploded View T0074 T0268 T0175 T0456 M0146 M0105 M0149 T0044 M0412 T0079 T0915 M0020 M0013 M0027 T0003 M0146 M0150 M0112 T0023 T002...

Page 62: ...T P FILTER TOP 42Q9 AL6063 T1 1 S N A M0150 BN96 04686A ASSY BRACKET P FILTER BOTTOM 42Q9 AL6063 1 S N A M0150 BN96 04691B ASSY BRACKET P SUPPORT FILTER 42Q9 Al 60 1 S N A M0412 BN96 04903C ASSY BRACK...

Page 63: ...tronics 5 3 Exploded View Part List 5 2 PS50Q97HDX XEU Exploded View T0074 T0268 T0003 M0146 M0150 M0112 T0023 T0023 CIS7 T0056 M0105 M0145 T0175 T0456 M0146 M0105 M0149 T0044 M0013 T0915 T0079 M0412...

Page 64: ...KET P FILTER TOP 50Q9 AL6063 T1 1 S N A M0150 BN96 04692A ASSY BRACKET P SUPPORT FILTER 50Q9 AL606 1 S N A M0150 BN96 04689A ASSY BRACKET P FILTER BOTTOM 50Q9 AL6063 1 S N A M0412 BN96 04903C ASSY BRA...

Page 65: ...0074 BN59 00603A REMOCON BORDEAUX PLUS TM87C samsung 28p 1 T0079 BN94 01178C ASSY PCB MISC MAIN PS42Q96HD EU F30A BN4 1 T0175 BN96 04819A ASSY SPEAKER P 8ohm Q9 42inch 10W 4P con 1 T0764 BN44 00161A S...

Page 66: ...EAUX PLUS TM87C samsung 28p 1 T0079 BN94 01177C ASSY PCB MISC MAIN PS50Q96HD EU F30A BN4 1 T0175 BN96 04703A ASSY SPEAKER P 8ohm P9 Q9 15W 4P connect 1 T0764 BN44 00162A SMPS PDP TV HPS5053 SEM AC DC...

Page 67: ...Samsung Electronics 5 7 MEMO...

Page 68: ...809 CN808 CN810 CN4701 CN4002 CN4001 CN4004 CN2004 CN2600 CN2610 CN2510 CN1 CN3 CN800 LOGIC BOARD SMPS X DRIVE Y DRIVE Y MAIN SCAN AC INLET F BUFFER FUNCTION POWER SW CN101 SIDE AV CN2609 CN2000 CN200...

Page 69: ...2510 CN1 CN3 CN800 LOGIC BOARD SMPS X DRIVE Y DRIVE Y MAIN SCAN HIGH F BUFFER FUNCTION POWER SW CN101 SIDE AV Y MAIN SCAN LOW CN2609 CN2003 CN2000 CN2001 CN2006 CN2005 SPEAKER CN801 CN2002 MAIN BOARD...

Page 70: ...he code number of cable Lead connector can be changed see 5 Exploded View Part List Use LVDS 31P 30P POWER 24P Flat Cable Code BN39 00859A BN39 00827A 42 BN96 05164A 50 BN96 05176A Photo Use AC_INPUT...

Page 71: ...D_STBY 16 5V 5 GND_18V AMP 17 GND_12V 6 GND_18V AMP 18 GND_12V 7 18V AMP 19 12V 8 18V AMP 20 GND_12V 9 GND_5V 21 12V 10 GND_5V 22 12V 11 GND_5V 23 N C FAN_ON 12 GND_5V 24 N C FAN_DET CN1404 MAIN B D C...

Page 72: ...MAIN B D SPEAKER Pin No Signal 1 R _OUT 2 R _OUT 3 L _OUT 4 L _OUT CN1605 MAIN B D FUNCTION Pin No Signal 1 KEY_INPUT1 2 KEY_INPUT2 3 GND CN800 SMPS AC INLET Pin No Signal 1 AC Neutral 2 N C 3 AC Liv...

Page 73: ...input connect from AC inlet CN4002 CN4002 Horizontal X scan line of Module and X scan Connect first Block CN4001 CN4001 Horizontal X scan line of Module and X scan Connect second Block CN4000 Horizont...

Page 74: ...es the video signal encoded by the Video Board outputs the ADDRESS data signal for each pattern and generates X and Y drive signals The Address Buffer Board buffers and transfers the ADDRESS data outp...

Page 75: ...7 2 Samsung Electronics MEMO...

Page 76: ...Samsung Electronics Schematic Diagram 7 3 This Document can not be used without Samsung s authorization 7 2 Schematic Diagram 7 2 1 Power Power...

Page 77: ...Samsung Electronics Schematic Diagram 7 4 This Document can not be used without Samsung s authorization 7 2 2 Sound Processing Power...

Page 78: ...7 5 Schematic Diagram Samsung Electronics This Document can not be used without Samsung s authorization 7 2 3 Input Output Jack I Power...

Page 79: ...Samsung Electronics Schematic Diagram 7 6 This Document can not be used without Samsung s authorization 7 2 4 Input Output Jack II Power...

Page 80: ...7 7 Schematic Diagram Samsung Electronics This Document can not be used without Samsung s authorization 7 2 5 MICOM Power...

Page 81: ...Samsung Electronics Schematic Diagram 7 8 This Document can not be used without Samsung s authorization 7 2 6 SVP UX Scaler Power...

Page 82: ...7 9 Schematic Diagram Samsung Electronics This Document can not be used without Samsung s authorization 7 2 7 DDR Tuner Power...

Page 83: ...Samsung Electronics Schematic Diagram 7 10 This Document can not be used without Samsung s authorization 7 2 8 DTV Reset AV out Power...

Page 84: ...Schematic Diagram 7 11 Samsung Electronics This Document can not be used without Samsung s authorization 7 2 9 DTV Memory STi5105 Power...

Page 85: ...Samsung Electronics Schematic Diagram 7 12 This Document can not be used without Samsung s authorization 7 2 10 PCMCIA STi5105 Power...

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