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Samsung WF24W6VN3X/XEF Service Manual

Chassis: s51a.
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COLOR TELEVISION RECEIVER
COLOR TELEVISION RECEIVER
Chassis :
S51A
Model :
WF24W6VN3X/XEF WF28W6VN3X/XEF
WF32W6VN3X/XEF
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CONTENTS

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   Summary of Contents for Samsung WF24W6VN3X/XEF

  • Page 1: Table Of Contents

    COLOR TELEVISION RECEIVER Chassis : S51A Model : WF24W6VN3X/XEF WF28W6VN3X/XEF WF32W6VN3X/XEF COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications and IC Data Disassembly and Reassembly Alignment and Adjustment Troubleshooting Exploded View and Parts List Electric Parts List Block Diagram PCB Layout Diagram...
  • Page 2: Precautions

    Precautions 1. Precautions Follow these safety, servicing and ESD precautions to prevent damage and protect against potential hazards such as electrical shock and X-rays. 1-1 Safety Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing (READING SHOULD NOT BE ABOVE protective shields.
  • Page 3 Precautions 1-1 Safety Precautions (Continued) 9. High voltage is maintained within specified 15. Observe the original lead dress, especially limits by close-tolerance, safety-related near the following areas: Antenna wiring, components and adjustments. If the high sharp edges, and especially the AC and high voltage exceeds the specified limits, check voltage power supplies.
  • Page 4: Servicing Precautions

    Precautions 1-2 Servicing Precautions Warning1: First read the “Safety Precautions” section of this manual. If some unforeseen circumstance creates a conflict between the servicing and safety precautions, always follow the safety precautions. Warning2: An electrolytic capacitor installed with the wrong polarity might explode. 1.
  • Page 5 Precautions 1-3 Precautions for Electrostatically Sensitive Devices (ESDs) 1. Some semiconductor (“solid state”) devices 5. Use only a grounded-tip soldering iron when are easily damaged by static electricity. Such soldering or unsoldering ESDs. components are called Electrostatically Sensitive Devices (ESDs); examples include 6.
  • Page 6: Specifications And Ic Data

    Specifications and IC Data 2. Specifications and IC Data 2-1 Specifications T e le v is io n S y s te m : MO D E L S YS T E M P AL -I (U H F ) P AL -I (V H F /U H F ) P AL -B /G ,S E C AM-B/G P AL -B /G ,D /K ,S E C AM-B /G ,D /K...
  • Page 7 Specifications and IC Data 2-2 IC Line Up L O C NO S pe cification D escription R e m arks H IC 101 P AP 10 3T IF P R E -AMP T D A88 44 P AL /S E C AM/NTS C /S E C AM-L IC 20 1 T D A88 43 P AL /NT S C...
  • Page 8 Specifications and IC Data 2-3 Semiconductor Base Diagrams ELECTROLYTIC- CONDENSER DIODE TDA4665(Pin 16) TDA837X(Pin 56) Z8933112PSC(Pin 42) X24CO4P(Pin 8) TDA8395(Pin 16) TDA4665(Pin 16) TRANSISTOR SAW-FILTER TRANSISTOR G1962 2SD1651 UPC574J K2950M 2SD1650 K9253M KSD5072 KSA815-Y KA33V KSD5071 KSA539-Y KSD1711 E B C TRANSISTOR TRANSISTOR TDA8133...
  • Page 9: Disassembly And Reassembly

    Disassembly and reassembly 3. Disassembly and Reassembly 3-1 Back Cover Removal 1. After removing the 7 screws, pull the cabinet backwards.
  • Page 10 Disassembly and reassembly 3-2 Main Board Removal 1. Separate the TBC-wire 2P connector from GT501,GT502. 2. Separate the CRT Assay from the CRT socket. 3. Remove the Anode Cap from the CRT. 4. Separate the D-Coil Connector from CN802. 5. Separate the AC cord from CN801. 6.
  • Page 11: Speaker Removal

    Disassembly and reassembly 3-3 Speaker Removal 1. Remove the speaker by pressing the tension rib. 1. Separate the speaker wires from D-coil (located on the bottom to the right side). 2. Remove the screws.
  • Page 12 Disassembly and reassembly 3-4 CRT Removal 1. Remove the 4 nuts mounting the CRT to the front cabinet. Pull the CRT backwards. 2. Caution: Because of the high vacuum and large surface area of the picture tube, be careful while handling it: (1) Always lift the picture tube by grasping it firmly around the faceplate, (2) Never lift the tube by its neck.
  • Page 13: Alignment And Adjustment

    Alignment and Adjustments 4. Alignment and Adjustments 4-1 Preadjustment 4-1-1 Factory Mode 4-1-3 When CRT Is Replaced 1. Make the following adjustments AFTER set- 1. Do not attempt these adjustments in the Video ting up after setting up purity and conver- Mode.
  • Page 14 Alignment and Adjustments 4-2-2 Main Adjustment Parameters FUNCTION RANGE AUTO GAIN CONTROL 0 - 63 VOLTAGE CONTROLLED OSCILLATOR 0 - 127 SUB BRIGHTNESS 0 - 23 SUB CONTRAST 0 - 23 SUB COLOUR 0 - 23 S-CORRECTION 0 - 63 RED DRIVE GAIN 0 - 63 BLUE DRIVE GAIN...
  • Page 15 Alignment and Adjustments FACTORY MODE VALUE INITIAL INITIAL INITIAL 2 (CH) 1 (FIXED) 20(FIXED) 80(FIXED) 31(FIXED) 7(FIXED) 31(FIXED) 5(FIXED) 8(FIXED) 11(FIXED) 31(FIXED) 31(FIXED) 3 (FIXED) 0 (FIXED) 10(FIXED) 31(FIXED) 4-2-3 AGING Mode (Reference Only) This pattern is used for pre-heating the CRT during manufacturing--it is accessed in the factory by twice pressing the “FACTORY “...
  • Page 16 Alignment and Adjustments 4-2-4 Option Byte Table Option Byte 1.ZOOM MODE : NORMAL/ZOOM/16:9 2.AUDIO MODE : NICAM STEREO 3.ONE CHIP : TDA8844 4.LED OPTION : NORMAL 5.LANGUAGE : WEST ENG/GER/FRA/DUT/SPA/ITA/SWE 6.SYSTEM: CX 7.ATS OPTION : ON 8.FIELD POL : FIELD POS OPTION NOTE PLU/NOR/ZOOM/16:9...
  • Page 17: Other Adjustments

    Alignment and Adjustments Alignment and Adjustments 4-2-5 RESET The Reset Mode is used during factory inspection. Function Reset: Channels Add/Erase Language Last condition Station name Clear 4-3 Other Adjustments 4-3-1 General 4-3-2 Automatic Degaussing 1. Usually, a color TV needs only slight touch- A degaussing coil is mounted around the pic- up adjustment upon installation.
  • Page 18 Alignment and Adjustments Alignment and Adjustments 4-3-3 High Voltage Check 4-3-6 Purity Adjustment 1. Warm up the receiver for at least 20 minutes. CAUTION: There is no high voltage adjustment on this chassis. The B+ power supply must be set to +155 volts (Full color bar input and normal picture level).
  • Page 19: White Balance Adjustment

    Alignment and Adjustments Alignment and Adjustments 4 Pole Magnet 2 POLE PURITY 2 Pole Magnet 6 Pole Magnet Clamper Screw YOKE CLAMP SCREW 6 POLE CONVERGENCE 4 POLE CONVERGENCE Fig. 4-2 Convergence Magnet Assembly Vertical Green Belt 31m/m Fig. 4-3 Center Convergence Adjustment 4-3-7 White Balance Adjustment (a) Set up 1.
  • Page 20 Alignment and Adjustments Alignment and Adjustments 4-3-8 Center Convergence Adjustment 5. Turn the both tabs at the same time, keeping 1. Warm up the receiver for at least 20 minutes. the angle constant, and superimpose the red and blue horizontal line in the center of the 2.
  • Page 21 Alignment and Adjustments Alignment and Adjustments 4-3-10 Geometry Adjustment 1. Input a lion head pattern. 2. Adjus t PVS s o that the pic ture is vertically centered. 3. Adjus t with PVA s o that the top and bottom margins of the pic ture are 4. 4.
  • Page 22: Troubleshooting

    Troubleshooting 5. Troubleshooting 5-1 No Video (Raster On, No Sound) Measure the Check/Replace Voltage of each of, 8 pins TU101, HC101 of TU101 Check/Replace Check IC901 IC901,IC201,IC902 ,IC701, Pins 39, 40 Audio Module See "No Sound" See "No Video" (Video OK) (Sound OK)
  • Page 23 Troubleshooting 5-2 No Power Check/Replace Check the 130V, IC801, D802 12.7V B + Lines Check/Replace Check IC804 IC804(KA7630),DZ905,DZ804 Pin 9 (5V) Check IC901 Check/Replace Pin 8 (4V). IC901 Check IC901 Check/Replace Pin 18 ; Stand-by : 0V IC901(µ-com) Normal : 5V Check/Replace Check IC201, IC201, Q402, Q403...
  • Page 24 Troubleshooting 5-3 No Video (Sound OK) Check IC201 Check/Replace Pin 12,37 (8V) IC804 KA7630 Check IC201 Check/Replace Pin 6 (CVBS) IC201 2Vp-p Check IC201 Pins 19, 20, 21 (R/G/B-OUT) Check/Replace Check IC202 IC201,D205,DZ204 pin 27 (Y-IN) Check IC501, Check/Replace on the CRT PCB IC501 Check/Replace R505 (HEATER 6.3Vrms)
  • Page 25 Troubleshooting 5-4 No Sound (Video OK) CHECK/REPLACE CHECK IC701 Sound Module (MD701) Pin 3,5 CHECK/REPLACE CHECK IC701 IC701, C712, C719 Pin 15,18 CHECK IC601 Pin CHECK/REPLACE 14 15 IC601, R601, R602 Sound output CHECK/REPLACE A/V Front Assembly. 5-5 Power OFF/ON (Repeatedly) CHECK Q403 SEE "...
  • Page 26 Troubleshooting 5-6 SMPS (Power Supply) Does Not Function (1) W he n F 802 is op en : C he ck/Replace F 8 02 , IC 80 1 , D 80 2. (2) W he n F 802 is okay, but SMP S doe s n ot fu nction: C he ck/Replace D Z80 1 , D Z8 08 , IC 80 2 , D Z8 05 .
  • Page 27: Exploded View And Parts List

    SPRING-CS ;-,SUS304,0.6,OD12.2,H13,N4,-,- AA64-00191A INDICATOR-LED ;-,28C7,-,ACRYL,-,CLR,- HA60-020004 SCREW-TAPTITE ;RH,+,2S,M3,L6,ZPC(YEL),SWRCH18 HA94-01694A ASSY-CRT ;W76EGX023X215,+380MG,32,ITC,- AA65-30113A CLAMP-D,COIL ;NYLON 66,V2,BLK,TVI 25~29,-,- AA60-10051D SCREW-ASSY ;WC,HH,+,M5,30,SWRCH18A,ZPC,- 3704-001105 SOCKET-CRT ;11P,20PI,26.5PI,NI,- AA91-00150B ASSY-HOLDER,SPK ;DP,-,8OHM/15W,-,AA91-00150A DP AA60-10050A SCREW-ASSY ;WP,RH,+,M4,L25,SWRCH18A,-,ZPC HA64-00019A CABINET-BACK ;32W6,-,HIPS,V2,BLK,-,- 6003-001025 SCREW-TAPTITE ;RH,M4,L20,BLK AA96-20122A ASSY-POWER,CORD ;-,CP2/NO(4.0),H/C250,KKJ1004A Samsung Electronics...
  • Page 28: Electrical Parts List

    HA95-00120AASSY-PCB,CONTROL;-,-,S51A,WIDE,28W6 ASSY-POWER,CORD ASSY-PCB,CRT AA96-20122B ASSY-POWER,CORD;-,CP2/NO(4.0),H/C500MM,K HA95-00003B ASSY-PCB,CRT;-,S51A,30,ALL,INVAR CRT ASSY-PCB,MAIN ASSY-HOLDER,SPK HA94-100499 ASSY-PCB,MAIN;28W6VN3X/XEF,S51A,WIDE,THM AA91-60217AASSY-HOLDER,SPK;DP,-,-,-,AA91-60003A,- ASSY-CRT HA94-01700AASSY-CRT;W66EGV023X215,+380MG,28,ITC,-, 7-2 WF32W6VN3X/XEF (WF32W6VN3X/XEF and WF24W6VN3X/XEF Dissimilar Parts) Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY-PCB,MAIN(OPT) ASSY-PCB,CONTROL HA94-01802AASSY-PCB,MAIN(OPT);WF32W6VN,S51A,XEF,-...
  • Page 29 Electrical Parts List 7-3 WF24W6VN3X/XEF Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY-PCB,MAIN(OPT) C412 2201-000599 C-CERAMIC,DISC;560pF,10%,500V,Y5P,TP,7x4,5 C413 2401-000962 C-AL;22uF,20%,50V,GP,TP,5x11,5 C414 2306-000330 C-FILM,MPPF;7.7nF,3%,1.6KV,TP,28.5x18.5x12 * HA94-01725AASSY-PCB,MAIN(OPT);24W6VN,S51A,XEF,PHIL,INV C415 2306-000330 C-FILM,MPPF;7.7nF,3%,1.6KV,TP,28.5x18.5x12 C416 2303-001026 C-FILM,PPF;33nF,10%,400V,TP,20x15x8,7.5 24W6 2001-000273 R-CARBON;100KOHM,5%,1/8W,AA,TP,1.8X3.2M...
  • Page 30 0403-001322 DIODE-ZENER;MTZJ8.2B,7.78-8.19V,500mW,DO-3 CW01 2305-000665 C-FILM,MPEF;100NF,5%,63V,TP,7.5X4.0X5.0MM, DZ403 0403-000698 DIODE-ZENER;TZP12A,12V,11.4-12.6V,1W,DO-41 CW02 2305-000665 C-FILM,MPEF;100NF,5%,63V,TP,7.5X4.0X5.0MM, DZ601 0403-001329 DIODE-ZENER;MTZJ24B,22.61-23.77V,500mW,DO- CW03 2305-000665 C-FILM,MPEF;100NF,5%,63V,TP,7.5X4.0X5.0MM, DZ602 0403-001329 DIODE-ZENER;MTZJ24B,22.61-23.77V,500mW,DO- CW04 2305-000665 C-FILM,MPEF;100NF,5%,63V,TP,7.5X4.0X5.0MM, DZ603 0403-001329 DIODE-ZENER;MTZJ24B,22.61-23.77V,500mW,DO- CW05 2401-001495 C-AL;47uF,20%,16V,GP,5x11mm,5mm,TP DZ604 0403-001329 DIODE-ZENER;MTZJ24B,22.61-23.77V,500mW,DO- CW06 2301-000383 C-FILM,PEF;10nF,5%,50V,TP,6x7x3.2mm,5mm DZ701 0403-000720 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500mW Samsung Electronics...
  • Page 31 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM L802 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400G R248 2001-000793 R-CARBON;47OHM,5%,1/8W,AA,TP,1.8X3.2MM L803 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400G R249 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM L804 2901-000299 FILTER-EMI ON BOARD;-,6A,UL/CSA,-,9x7.5,TP,- R250 2001-000938 R-CARBON;68ohm,5%,1/8W,AA,TP,1.8x3.2mm L805 2701-001032 INDUCTOR-AXIAL;100UH,10%,5X14MM R251 2001-000563 R-CARBON;27KOHM,5%,1/8W,AA,TP,1.8X3.2MM L806 2901-000297 FILTER-EMI ON BOARD;-,3A,-,-,3.5X5,TP,- R253 2001-000591 R-CARBON;3.3KOHM,5%,1/8W,AA,TP,1.8X3.2M Samsung Electronics...
  • Page 32 2001-000628 R-CARBON;300OHM,5%,1/8W,AA,TP,1.8X3.2MM R709 2001-000969 R-CARBON;75OHM,5%,1/8W,AA,TP,1.8X3.2MM R932 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,1.8X3.2MM R712 2001-000331 R-CARBON;12KOHM,5%,1/8W,AA,TP,1.8X3.2MM R933 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M R713 2001-000969 R-CARBON;75OHM,5%,1/8W,AA,TP,1.8X3.2MM R934 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M R714 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM R935 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,1.8X3.2MM R715 2001-000969 R-CARBON;75OHM,5%,1/8W,AA,TP,1.8X3.2MM R936 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M R716 2001-000660 R-CARBON;33KOHM,5%,1/8W,AA,TP,1.8X3.2MM R937 2001-001062 R-CARBON(S);10Mohm,5%,1/2W,AA,TP,2.4x6.4mm Samsung Electronics...
  • Page 33 AA39-00011ALEAD CONNECTOR-ASSY;-,YBNH250-02,S,2P,100MM,1007#2 ASSY-CRT WIDE 2201-000558 C-CERAMIC,DISC;470pF,10%,50V,Y5P,TP,5x3,5 WIDE AA39-00046F LEAD CONNECTOR-ASSY;-,JUMPER,BLK,1P,200mm,1007#22 WIDE AA39-00046C LEAD CONNECTOR-ASSY;-,JUMPER,BLK,1P,100mm,1007#22 * HA94-500029ASSY-CRT;W56EGV023X015,THOMSON, 24,WID WRW01 2103-000667 VR-SEMI;50Kohm,25%,1/5W,SIDE X202 2801-003726 CRYSTAL-UNIT;4.433619MHz,20ppm,28-AAM,20pF, AA03-00158ACRT COLOR;W56EGV023X015 ,W56EGV023X015 X203 2801-000226 CRYSTAL-UNIT;3.579545MHz,20ppm,28-AAM,15pF, AA39-20519ALEAD CONNECTOR-ASSY;-,YFH806-06,-,6(4)P,500MM,1617 XT01 2801-003433 CRYSTAL-UNIT;12MHz,30ppm,28-AAA,30pF,30ohm, AA27-20002HCOIL-DEGAUSSING;-,24,24W6 Z208 2903-000181 FILTER-CERAMIC;TR,5.5MHz,-,-,-,TP,TPS5.5MB-TF Samsung Electronics...
  • Page 34 2001-000028 R-CARBON(S);100ohm,5%,1/2W,AA,TP,2.4x6.4mm RC03 2001-000924 R-CARBON;680OHM,5%,1/8W,AA,TP,1.8X3.2MM RC04 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM RC05 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M RC07 2001-000793 R-CARBON;47OHM,5%,1/8W,AA,TP,1.8X3.2MM RMC01 AA59-60001UMODULE-REMOCON;-,ORC-50VF/SR-12V,38KHz,940nm, SWC01 3404-000244 SWITCH-TACT;12V,50mA,100-160gf,8.4x22.6mm, SWC02 3404-000244 SWITCH-TACT;12V,50mA,100-160gf,8.4x22.6mm, SWC03 3404-000244 SWITCH-TACT;12V,50mA,100-160gf,8.4x22.6mm, SWC04 3404-000244 SWITCH-TACT;12V,50mA,100-160gf,8.4x22.6mm, SWC05 3404-000244 SWITCH-TACT;12V,50mA,100-160gf,8.4x22.6mm, SWC801 3403-000179 SWITCH-PUSH;250V,5A,DPST,-,JPW-2104B ASSY-R/G/B,SWITCHING MDT01 SA95-90009S ASSY-R/G/B,SWITCHING;S51A Samsung Electronics...
  • Page 35 MEMO Samsung Electronics...
  • Page 36: Block Diagram

    Block Diagram 8. Block Diagram 8-1 S51A SPEAKER 8Ω 10W X 2 AUDIO-MODULE AUDIO-PROCESSOR TDA9874 TDA9814T TDA7297 NICAM TDA9859 SIF SAW FILTER SIF-DETECTOR DECODER 2CH AUDIO AMP RGB-AMP TUNER VIF SAW FILTER FREE-AMP TDA6108 TELE4-108A G3956M PAP103 1 CHIP IF/VIDEO/CHROMA/DEFLECTION SPM-171EE TDA8844 VERTICAL AMP...
  • Page 37: Pcb Layout Diagram

    3S51A-4401-PDIAG-14 11/18/99 4:20 PM Page 10-1 PCB Layout 9. PCB Layout 9-1 PCB Main Loc. No. Loc. No. DIODE DZ503 DZ505 D101 DZ601 D201 DZ602 D202 DZ603 D203 DZ604 D204 DZ701 D205 DZ702 D206 DZ703 D209 DZ704 D210 DZ705 D217 DZ801 D301 DZ802...
  • Page 38: Wiring Diagram

    Wiring Diagram 10. Wiring Diagram 10-1 S51A ANODE C R T ASSY-PWB FRONT,A/V CN701A CN05A A S S Y -P W B M A IN CN501B CN06A FOCUS SOCKET SW801 SCR EE N S O U ND A MP CN602 P IP /T T X S MP S MO D U L E...
  • Page 39: Schematic Diagrams

    Schematic Diagrams 11. Schematic Diagrams 11-1 MAIN (Power) : Power Line : Signal Line Samsung Electronics 11-1...
  • Page 40 Schematic Diagrams 11-2 PWB MAIN (One-Chip) : Power Line : Signal Line 11-2 Samsung Electronics...
  • Page 41 Schematic Diagrams 11-3 PWB MAIN / CRT (u-COM) : Power Line : Signal Line Samsung Electronics 11-3...
  • Page 42 Schematic Diagrams 11-4 PWB MAIN (SUB) : Power Line : Signal Line 11-4 Samsung Electronics...
  • Page 43 Schematic Diagrams 11-5 PWB MAIN (Sound Module) Samsung Electronics 11-5...
  • Page 44 Schematic Diagrams 11-6 MICOM ( TTX ) / A/V SIDE 11-6 Samsung Electronics...
  • Page 45 Schematic Diagrams 11-7 PWB MAIN (SOUND MODULE STEREO) Samsung Electronics 11-7...
  • Page 46 Schematic Diagrams 11-8 PWB MAIN (SOUND MODULE NICAM) 11-8 Samsung Electronics...
  • Page 47 Schematic Diagrams 11-9 PWB MAIN (PIP-TTX) Samsung Electronics 11-9...
  • Page 48 Schematic Diagrams 11-10 PWB MAIN (PIP) 11-10 Samsung Electronics...
  • Page 49 ELECTRONICS © Samsung Electronics Co., Ltd. AUG.2000 Printed in Korea 3S51A-W3201...

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