Samsung CMF2710SX/KMT Service Manual
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Samsung CMF2710SX/KMT Service Manual

Samsung CMF2710SX/KMT Service Manual

Color television receiver chassis: k57a(n)
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COLOR TELEVISION RECEIVER
COLOR TELEVISION RECEIVER
Chassis :
K57A(N)
Model :
CMF2710SX/KMT
1.
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CONTENTS

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Summary of Contents for Samsung CMF2710SX/KMT

  • Page 1: Table Of Contents

    COLOR TELEVISION RECEIVER Chassis : K57A(N) Model : CMF2710SX/KMT COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications and IC Data Disassembly and Reassembly Alignment and Adjustment Troubleshooting Exploded View and Parts List Electrical Parts List Block Diagram Wiring Diagram Schematic Diagrams...
  • Page 2 ELECTRONICS Samsung Electronics Co., Ltd. SEP.2002 © Printed in Korea AA82- 00143A...

  • Page 3: Safety 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 4 14. Components, parts and wiring that appear to have overheated or that are otherwise damaged should be replaced with parts that meet the original specifications. Always determine the cause of damage or overheat- ing, and correct any potential hazards. Samsung Electronics...

  • Page 5: 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 6: Precautions For Electrostatically Sensitive Devices (Esds)

    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 7: Specifications And Ic Data

    Color Sub Carrier 42.18 Picture Tube: 29Inch Flat, +380MG 29 Inch A68QCP891X100 Power Requirements: AC 120V, 60Hz Antenna Input Impedance: VHF, UHF : Telescopic dipole antenna (75 ohm unbalanced type ) Speaker Impedance 8 ohm, 15W+15W (Dual Type) Samsung Electronics...
  • Page 8 CUSTOM REGULATOR (5V, 8V, 3.3V) FIAIR CHILD M24C08 IC202 EEPROM PC801S TCET1108 / LTV817B PHOTO COUPLER PC802S IC101 LA7510 TEMIC IF DETECTOR-IC IC601 MSP-3425G-B8 Sound Processor Micronas ICP01 VIPER12AD1P PWM CONTROCER-IC NJM2235D VIDEO Swiching-IC ICW01 ICG01 OP AMP-IC 4558 Samsung Electronics...
  • Page 9 LM393(Pin 8) VIPER12ADIP(Pin 8) M24C08(Pin 8) 4558(Pin 8) NJM2235D(Pin 8) TRANSISTOR SAW-FILTER TRANSISTOR M3953M M9370M KSD5703 KSA614 KSC815-Y KSA539-Y E B C TRANSISTOR LA7845(Pin 7) TDA6108Q(Pin 9) KA7632(Pin 10) KSC2331-Y E C B Fig. 2-1 Semiconductor Base Diagrams Samsung Electronics...
  • Page 10 MEMO...

  • Page 11: Disassembly And Reassembly

    Disassembly and reassembly 3. Disassembly and Reassembly 3-1 Back Cover Removal 1. After removing the screws, press the tension rib and pull the cabinet backwards. 2. To reassemble, press the tension rib (see diagram). Samsung Electronics...

  • Page 12: Main Board Removal

    Warning: The FBT is charged with high voltage. Before removing the Anode Cap, discharge the voltage through one of the heat sinks on the main board. 3-3 Speaker Removal 1. Remove the speaker by pressing the tension rib. Samsung Electronics...

  • Page 13: Crt Removal

    Always lift the picture tube by grasping it firmly around the faceplate, (2) Never lift the tube by its neck. (3) Do not scratch the picture tube or apply excessive pressure. Fractures of the glass may cause an implosion. Samsung Electronics...
  • Page 14 MEMO Samsung Electronics...

  • Page 15: Alignment And Adjustment

    “VOLUME” keys ( Up or Down). The adjust- is cancelled. ment parameters are listed in the accompany- ing table, and selected by pressing the CHAN- 6. Cancel the Adjustment Mode by re-pressing NEL keys ( the “FACTORY” or “Power OFF” keys. Samsung Electronics...
  • Page 16 Au tomat ic Gain Cont r ol 0 ~ 6 3 Ho ri zont al Par all elogr am 0 ~ 6 3 HPAR 0 ~ 6 3 Ho ri zont al Bow HBOW 0 ~ 6 3 EWID EW Widt h Samsung Electronics...
  • Page 17 CDL in DVD mode 0 ~ 1 6 DCDL 0 ~ 6 3 BL R in DVD mode DBLR 0 ~ 6 3 BL B in DVD mode DBLB Dy namic Ski n Tone Cont r ol 0 ~ 1 Samsung Electronics...
  • Page 18 - V-CHIP ON/OFF (U.S.A) V-CHIP - AV + S-V + DVD AV OPTION AV1/AV2/S-V/DVD - TILT ON/OFF TILT - DEMO ON/OFF DEMO - External 2H-COM ON/OFF EXT COMB V-Guard - Vertical Guard ON/OFF (*MAIN PCB A LOT : OFF) Samsung Electronics...

  • Page 19: Other Adjustments

    7. Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 8. To protect against shock hazard, use an isola- tion transformer. Samsung Electronics...
  • Page 20 1. Input a Toshiba pattern. 12. Tighten the deflection yoke. 2. Go to service mode and select ‘G2-Adjust. 3. Adjust bottom VR of FBT to display “SCREEN ADJUST : OK” 4. Use the Menu or Mute key to complete G2 adjustment. Samsung Electronics...
  • Page 21 Mode with using CA100. See Fig. 4-4. Fig. 4-4 2. Adjust RG,BG so that the levels are suitable to each local area. (c) High-Light Adjustment 1. Set SCT to 45 FL in the Factory Service Mode with using CA100. See Fig. 4-4 . Samsung Electronics...
  • Page 22 8. Since the 4-pole magnets and 6-pole magnets lines in the center area of the screen. interact, the dot movement is complex (Fig. 4-5). RED/BLUE GREEN BLUE BLUE RED/BLUE GREEN 6-Pole Magnet Movement 4-Pole Magnet Movement Fig. 4-5 Center Convergence Adjustment Samsung Electronics...
  • Page 23 4. Fig. 4-7 4. Adjust with VSL (Vertical-Slope) so that the bottom margin of the picture is 4. Fig. 4-8 5. Adjust with HS (Horizontal Shift) so that the lion-head pattern and CRT centers are aligned. Samsung Electronics...
  • Page 24 Alignment and Adjustments 8. Adjust EW Geometry EUCN (EW Upper Coner) HPAR (Horizontal Parallelogram) HBOW (Horizontal Bow) ELCN (EW Lower Coner) ETRP ( EW Trapezivm) EWID (EW Width) EPAR (EW Parabola) 4-10 Samsung Electronics...
  • Page 25 Alignment and Adjustments Samsung Electronics 4-11...
  • Page 26 MEMO 4-12 Samsung Electronics...

  • Page 27: Troubleshooting

    IC201 S Normal Check the 12.5V-A Line Check the (33)Pin (H-Drive) of IC201S Abnormal Abnormal Check/Replace IC802 Check the Normal FD802S, IC801S or AC-Fuse Abnormal Check the 130V- A Line Check the Normal FBT,D808 Check / Replace Q401 Samsung Electronics...
  • Page 28 D406,R414,D405,R413 Check/Replace Check the Abnormal resistance of R519 Check/Replace Nornal R418,R522,R523 Replace Nornal R519 Check CRT and FBT Abnormal Check IC201S Check/Replace Pin 51,52,53 D407,FBT (R.G.B) Check/Replace Nornal IC201S Check IC201S Pin50(IK,V-GUARD) Abnormal Nornal Check CRT and FBT Samsung Electronics...
  • Page 29 Normal Check IC602 Pin4,12 Abnormal Normal Check IC602 Abnormal Abnormal Replace Check IC601 IC602 Pin47(SIF) Abnormal Check FD801S Normal Check D805 IC101,TUNER Abnormal Normal Replace Check IC601 FD801S,D805 Normal No Power Check Check/Replace B+ Line IC601 5V-B, 8V-B Samsung Electronics...
  • Page 30 Troubleshooting 5-4 Horizontal Lines Appear or Screen Abnormal Check IC301 B+ 16V-C,-13.5V-C Normal Check R413,R414 D405,D406 Check IC201S Abnormal Pin 21,22 (VDN,VDP) Normal Check IC201S Check / Replace IC301 Samsung Electronics...

  • Page 31: Exploded View And Parts List

    Exploded View & Parts List 6. Exploded View & Parts List 6-1 CMF2710SX/KMT Code No Description;Specification Q’ty Remark AA64-02787A CABINET-FRONT;29K8,HIPS,V0,BLK AA64-02281A BADGE-BRAND;27V,AL FORGING,SILVER,C/MATH BADGE AA64-02791A KNOB-POWER;29K8,ABS,HB AA61-60003J SPRING-CS;-,-,SUS304,0.5,OD6,H SPRING AA96-00960A ASSY-PCB;A/V FRONT;KS3A,29 A/A-V 6006-001095 SCREW-ASS’Y TAPT;WP,BH,+,M4,L12,ZPC(YEL) AV+CF AA61-40113A STOPPER-PCB;-,ABS,HB,NTR. STOPPE AA64-02790A KNOB-CONTROL;29K8,ABS,HB...

  • Page 32: Electrical Parts List

    Loc. No. Code No. Description ; Specification Remark ASSY CHASSIS RG03 2004-001987 R-METAL;4.3KOHM,1%,1/2W,AA,TP, RG02 2004-002022 R-METAL,FILM;RM1/2T51K-F RG04 2004-002022 R-METAL,FILM;RM1/2T51K-F A/CHAS AA91-05511H ASSY CHASSIS;CMF2710SX/KMT R523 2008-001018 R-FUSIBLE(S);0.47OHM,10%,2W,AF R519 2008-000299 R-FUSIBLE;RF2RT470-J A/CRT AA96-01015A ASSY MISC P-CRT;TXM2792FX,K57A R522 2008-001129 R-FUSIBLE(S),1.5OHM,5%1/2W,AF,TP,2.5 DF01 0401-000005 DIODE;1N4148,100V,300mA,1V,8nS,TAPING...
  • Page 33 2301-000213 C-FILM,PEF;220NF,5%,250V,21.5X IC802 AA96-00245A ASSY H/S;-,-,AA62-00055A,KA7632,- JRWK AA39-20536G LEAD CONNECTOR ASSY;,1P,F,F,60MM,1617#22 1203-001939 IC-POSI.FIXED REG.;7632,SIP,10P,-,PLASTI TPRW 0203-001203 TAPE-DOUBLE FACE;#4016,T1.6,W10,L1000,NT 6003-000334 SCREW-TAPTITE;RH,+,2S,M3,L6,ZP A/MAIN AA94-12278A ASSY PCB MAIN;CMF2710SX/KMT,K57A AA62-00055A HEAT SINK-PS;-,-,T1.0,-,35*15*25,D1,-,-, 0202-000008 SOLDER-WIRE;S63S-D3.0,S63A,D3,63/37 IC301 AA96-50406A ASSY-H/S;LA62-30180K,LA7845 0202-000187 SOLDER-WIREFLUX;-,RS60S,D1.2,6 1204-000517 IC-LINEAR;LA7845SIPVERTICALAMP 0204-000442 SOLVENT;CH3-CH5H-CH396%IM-1000 6003-000333 SCREW-TAPTITE;RH,+,2S,M3,L10,ZPC(YEL),SW...
  • Page 34 2001-000012 R-CARBON;680Kohm,5%,1/8W,AA,TP,1.8x3.2m Q211 0501-000283 TRANSISTOR;KSA539-Y(TAPG)/YTAM R260 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP Q702 0501-000283 TRANSISTOR;KSA539-Y(TAPG)/YTAM R261 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP QR01S 0501-000283 TRANSISTOR;KSA539-Y(TAPG)/YTAM R907 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP Q951 0501-000369 TRANSISTOR;KSC2331-Y(TAPG) R908 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP Q203 0501-000389 TRANSISTOR;KSC815-Y(TAPG)/YTAM R901 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP Q204 0501-000389 TRANSISTOR;KSC815-Y(TAPG)/YTAM R904 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP Samsung Electronics...
  • Page 35 2301-000232 C-FILM,PEF;3.3NF,5%,50V,8.1X4. RP801S 2002-001010 R-COMPOSITION;1.8MOHM,5%,1/2W,AA,TP,3.7X C301 2301-000254 C-FILM,PEF;39NF,5%,50V,7.5X3.5X6.5MM,5MM RY801S 2002-001012 R-COMPOSITION;8.2MOhm,5%,1/2W,AA,TP,3.7X C235 2301-000342 C-FILM,PEF;2.2nF,5%,50V,TP,7.4x3.9x13mm, R408 2003-000540 R-METALOXIDE(S);1KOHM,5%,2W,AD CE03 2301-000342 C-FILM,PEF;2.2nF,5%,50V,TP,7.4x3.9x13mm, R830 2003-000586 R-METALOXIDE(S);22KOHM,5%,2W,A CP01 2301-000356 C-FILM,PEF;47nF,5%,50V,TP,7.5x4.0x6.5,5m R831 2003-000586 R-METALOXIDE(S);22KOHM,5%,2W,A C102 2301-000383 C-FILM,PEF;10nF,5%,50V,TP,6x7x3.2mm,5mm R818 2003-000998 R-METALOXIDE;300OHM,5%,2W,AF,T C401 2301-000383 C-FILM,PEF;10nF,5%,50V,TP,6x7x3.2mm,5mm Samsung Electronics...
  • Page 36 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A C234 2401-000660 C-ELECTROLYTIC;CE04WTAPG50V2.2 J202 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A C412 2401-000927 C-AL;22UF,20%,250V,GP,13X20MM, J203 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A C101 2401-000962 C-AL;22uF,20%,50V,GP,TP,5x11,5 J204 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A C212 2401-000962 C-AL;22uF,20%,50V,GP,TP,5x11,5 J205 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A C615 2401-001026 C-AL;3.3UF,20%,50V,GP,5X11MM,5 J207 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A C620 2401-001026 C-AL;3.3UF,20%,50V,GP,5X11MM,5 J208 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A Samsung Electronics...
  • Page 37 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST J635 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A EY436 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST J704 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A EY437 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST J705 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A EY438 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST J706 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A EY439 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST R715 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A EY440 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST J711 3812-000219 JUMPER-WIRE-SO,COPPER;TA0.6SN/52M/M(A EY441 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST Samsung Electronics...
  • Page 38 C-AL;100uF,20%,10V,GP,TP,5x11,5 EY302 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST EY303 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST EY304 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST ASSY COVER REAR EY601 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST EY602 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST A/REAR AA90-04228A ASSY COVER REAR;CMF2710SX/KMT,BLK EY603 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST EY604 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST CB+CF 6003-001026 SCREW-TAPTITE;RH,+,B,M4,L15,ZPC(BLK),SWR EY703 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST TER+RC 6003-001026 SCREW-TAPTITE;RH,+,B,M4,L15,ZPC(BLK),SWR EY704 AA60-40011A EYELET;-,ID2.0,OD2.8,-,-,BST...
  • Page 39 AA65-30018A CLAMP-WIRE;-,NYLON6.6,-,-,DATL A/P/MA AA92-06931A ASSY P/MATERIAL;29K8 BXTAPE 0203-001295 TAPE-OPP MASKING;1242,T0.06,W100,L91.4M, ASSY COVER FRONT STAPLE AA60-40006A PIN-STAPLE;-,-,-,H18,33X17.8X2 PE-BAG AA69-01209A BAG;SHEET,25-27,W54,L60,FOAM,OEM. A/FRON AA90-04227A ASSY COVER FRONT;CMF2710SX/KMT,29K8 C/SET AA69-01680A CUSHION-SET;29K8,PS FOAMED,C=0.02 AV+CF 6006-001095 SCREW-ASS’Y TAPT;WP,BH,+,M4,L12,ZPC(YEL) SPK+CF 6003-001026 SCREW-TAPTITE;RH,+,B,M4,L15,ZPC(BLK),SWR ASSY CPT CRT+CF AA60-10050V SCREW-ASSY;WC,HH,+,M6,L30,SWRCH18A,ZPC(S AA61-10054A BRACKET-CRATER;-,STS304,-,T0.5...

  • Page 40: Block Diagram

    Block Diagram 8. Block Diagram 8-1 K57A SOUND AMP SPEAKER ( TDA7297S 15W2CH ) TUNER VI F SAW SI F SAW S I F P I F S I GNAL SI GNAL 3. 3 V CRT DRI VE (TDA6108JF ) S I F - OUT REGUL ATOR I C VMC(C2344/ A1011)

  • Page 41: Wiring Diagram

    CN901 POWER CORD CRT PCB CN501 SVM-OUT TILT SENSE CN502 B- OUT B-13.5V G- OUT B+16.5V R- OUT HEATER B+ 210V CN701 V-OUT V- IN L -OUT R- OUT L- IN CN702 R- IN SY-OUT SC-OUT SY-IN SC-IN Samsung Electronics...
  • Page 42 MEMO...

  • Page 43: Schematic Diagrams

    Schematic Diagrams 10. Schematic Diagrams 10-1 MAIN(1/3) TP13 TP14 TP15 TP16 TP23 TP16 TP19 TP21 TP22 TP18 TP15 TP17 TP17 TP18 TP13 TP19 TP21 TP14 TP22 TP23 Samsung Electronics 10-1...
  • Page 44 Schematic Diagrams 10-2 MAIN(2/3) TP01 TP02 TP03 TP04 TP05 TP05 TP06 TP12 TP06 TP02 TP07 TP08 TP04 TP03 TP10 TP01 TP10 TP12 TP08 10-2 Samsung Electronics...
  • Page 45 Schematic Diagrams 10-3 MAIN(3/3) TP24 TP24 Samsung Electronics 10-3...
  • Page 46 Schematic Diagrams 10-4 CRT 10-4 Samsung Electronics...

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