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Samsung CT2088BL6X/XAP Service Manual

Samsung color television receiver service manual
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COLOR TELEVISION RECEIVER
COLOR TELEVISION RECEIVER
Chassis :
K15A (H)
Model:
CT2088BL6X/XAP
CT1488BL6X/XAP
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CONTENTS

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Summary of Contents for Samsung CT2088BL6X/XAP

  • Page 1: Table Of Contents

    COLOR TELEVISION RECEIVER Chassis : K15A (H) Model: CT2088BL6X/XAP CT1488BL6X/XAP COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications Alignment and Adjustments Troubleshooting Exploded Views and Parts List Electrical Parts List Block Diagram Wiring Diagrams Schematic Diagrams...
  • Page 2 ELECTRONICS © Samsung Electronics Co., Ltd. APR. 2000 Printed in Korea 3K15A-8801...

  • Page 3: Precautions

    The current measured should the X–ray Protection Specifications Label, and not exceed 0.5 milliamp. Reverse the power- the Product Safety and X-ray Warning Note on plug prongs in the AC outlet and repeat the the service data schematic. test. Samsung Electronics...
  • 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

    (except lamp) are damaged, replace the whole optical engine. 5. Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks). Samsung Electronics...
  • Page 6 4. Do not use freon-propelled chemicals. These unpackaged replacement ESDs. Motions such can generate electrical charges that damage as brushing clothes together, or lifting a foot ESDs. from a carpeted floor can generate enough static electricity to damage an ESD. Samsung Electronics...

  • Page 7: Specifications

    VHF CH : 2-13, UHF CH : 14-69, CABLE CH : 1,14-125 Antenna Input Impedance 75 ohm UNBALANCED TYPE FOR VHF/UHF Intermediate Frequency PICTURE 45.75MHz, SOUND 41.25MHz, COLOR SUB CARRIER 42.17MHz Speaker Impedance Dual : 8 ohm 6W x 2 Samsung Electronics...
  • Page 8 MEMO Samsung Electronics...

  • Page 9: Alignment And Adjustments

    SVC : MUTE Return to the Factory mode via the MENU Select a mode to be adjusted, using the chan- key. nel down key. Example: VCO. ADJUSTMENT PATTERN OPTION RESET Press POWER to enter the Stand-by mode. SVC : MUTE Samsung Electronics...

  • Page 10: Service Mode Adjustments

    VERTICAL SIZE Adjustment 0~63 Press volume + key. 14 VS VERTICAL CENTER Adjustment POWER 15 HS HORIZONTAL Phase Adjustment 0~31 16 SS SUB-SHARPNESS Adjustment 0~31 Note : The initial MICOM data values take effect when IC902 is replaced. Samsung Electronics...

  • Page 11: Alignment And Adjustment

    5. To recover picture and sound, temporarily turn off the TV and allow the failsafe circuit more than 30 seconds to reset. Then switch power ON to produce normal picture and sound. Samsung Electronics...
  • Page 12 2.4V 0.1Vpp 3-2-9 Sub-Tint Adjustment Input a rainbow pattern. Check CN201 B-OUT with an oscilloscope. 3. Adjust STT in the service mode until the 6th peak is the highest and the 5th and 7th peaks have equal heights. Samsung Electronics...
  • Page 13 3. Recheck in low light. 3-2-12 Sub-Brightness Adjustment 1. Input a Toshiba pattern. 2. Warm up the receiver for 10 minutes. 3. Enter the Service Mode and set SB to the point where the 5th point is brighter in the gray scale. Samsung Electronics...
  • Page 14 (after 15 minute) POWER OFF during no signal 1 for army CATV AIR/STD/HRC/IRC AIR/STD/HRC/AFN NT Only REMARK FUNCTION BYTE:1 NAME TURBO Turbo function exists No Turbo function No MTS function MTS function exists V-CHIP No V-CHIP function V-CHIP function exists Samsung Electronics...

  • Page 15: Troubleshooting

    D801S ~ D804S Oscillation. Abnormal Check Abnormal (0 ~ 15V) IC801S Pin 3 B + . Check/Replace Normal (15~20V) D806, Q401, Q801, D802, D814* Normal (0.5 ~ 3V) Abnormal (0V) Check IC801S* Pin 4 Voltage Check/Replace Check/Replace PC802 DZ802, D806 Samsung Electronics...

  • Page 16: No Sound

    Troubleshooting 4-2 No Sound Samsung Electronics...
  • Page 17 24V-C Voltage. Check Check Abnormal Waveform of IC201S FBT Pin 2 (24V) Pins 22,24. Oscillation. Normal Check Whether a horizontal line appears in Normal Check R409 Check/Replace the service mode.. Open. FBT. Open Check/Replace Check/Replace Check/Replace R409. IC301. IC201S. Samsung Electronics...
  • Page 18 Check Abnormal IC201S Pin 47 Normal (1Vp-p) waveform level. Check Normal (2Vp-p) Abnormal IC201S Pins 19,20, 21 waveform level. Check IC201S Pin 37 waveform Normal (3~5Vp-p) level. Check CRT PCB (180V) Replace IC201S. and heater Voltages. Normal (1Vp-p) Samsung Electronics...

  • Page 19: Exploded Views And Parts List

    Exploded Views & Parts List 5. Exploded Views & Parts List 5-1 CT2088BL6X/XAP Code No Description Specification Q’ty Remark AA91-00283B ASSY CABINET FRONT ;-,20S4,(SPK)SV704 EPG AA64-00704B WINDOW REMOCON ;-,20S4,-,PC,V0,VIOLET,-” AA64-00703D KNOB POWER ;-,20S4,T/S NO-SILK,ABS,HB,G36 AA61-60003J SPRING-CS ;-,SUS304,0.5,OD6,H12,N7,-,-,- AA64-00705B INDICATOR LED ;-,20S4,-,ACRYL,-,CLR,-...
  • Page 20 MEMO Samsung Electronics...

  • Page 21: Electrical Parts List

    Electrical Parts List 6. Electrical Parts List 6-1 CT1488BL6X/XAP (CT1488BL6X/XAP and CT2088BL6X/XAP Dissimilar parts) Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY PCB MAIN(OPT) AA64-00755B INDICATOR LED;-,14S4,-,ACRYL,-,CLR,- PA+CF AA60-10002A SCREW-TAPPING;RH,+,M4,L12,ZPC(YEL),-,OD14 SPRING AA61-60003J SPRING-CS;-,SUS304,0.5,OD6,H12,N7,-,-,-...
  • Page 22 Electrical Parts List 6-2 CT2088BL6X/XAP Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY PCB MAIN(OPT) C604 2401-000603 C-AL;1uF,20%,50V,GP,TP,5x11,5 C611 2202-000279 C-CERAMIC,MLC-AXIAL;47pF,5%,50V,SL,TP,3. C612 2202-000279 C-CERAMIC,MLC-AXIAL;47pF,5%,50V,SL,TP,3. * AA94-01968BASSY PCB MAIN(OPT);CT20S4Z6X/XAP,K15A-1, C701 2305-000665 C-FILM,MPEF;100nF,5%,63V,TP,7.5x4.0x5.0m...
  • Page 23 R252 2001-000591 R-CARBON;3.3KOHM,5%,1/8W,AA,TP,1.8X3.2M L804 3301-001223 CORE-FERRITE BEAD;AB,-,3.5X5X0.8MM,-,TP, R253 2001-000591 R-CARBON;3.3KOHM,5%,1/8W,AA,TP,1.8X3.2M L805 2901-000297 FILTER-EMI ON BOARD;-,3A,-,-,3.5x5,TP,- R257 2008-000252 R-FUSIBLE(S);0.47ohm,10%,1/2W,AF,TP,2.5x L810 2701-001032 INDUCTOR-AXIAL;100uH,10%,5x14mm R301 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM L811 2901-000297 FILTER-EMI ON BOARD;-,3A,-,-,3.5x5,TP,- R302 2001-000003 R-CARBON;330ohm,5%,1/8W,AA,TP,1.8x3.2mm L901 2701-000197 INDUCTOR-AXIAL;5.6uH,10%,2.5x3.4mm R303 2001-000908 R-CARBON;62KOHM,5%,1/8W,AA,TP,1.8X3.2MM Samsung Electronics...
  • Page 24 R854 2001-001125 R-CARBON(S);300KOHM,5%,1/2W,AA,TP,2.4X6. ASSY CABINET FRONT R901 2001-000793 R-CARBON;47OHM,5%,1/8W,AA,TP,1.8X3.2MM R902 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM * AA91-00283B ASSY CABINET FRONT;-,20S4,(SPK)SV704 EPG R903 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM * AA90-00244B ASSY CABINET;20S4,CT2088BL6X/XAP R904 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM R905 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM ASPK AA96-00287A ASSY SPEAKER;-,8ohm,15W,001115/001088,AA R906 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP,1.8X3.2M Samsung Electronics...
  • Page 25 STOPP AA61-40113A STOPPER-PCB;501H,HIPS,NTR,HB,-,- ASSY-POWER,CORD WRMC AA64-00704B WINDOW REMOCON;-,20S4,-,PC,V0,VIOLET,- * AA96-20109C ASSY-POWER,CORD;-,CP2/NO(4.0),H/C300,KKP ASSY ACCESSORY HDRP AA61-20284A HOLDER;-,P-CORD,PP,VO,BLK,KE-002 PCORD AA39-10006X POWER-CORD;-,KKP419C,KLCE-2F,2.286MT,3P, * AA94-02098AASSY ACCESSORY;CT2088BL6X/XAP,K15A,PANAM AA42-10001V ANT-ROD;-,3S,620mm,BRN,UL/CSA REMOCON BATT 4301-000120 BATTERY-MN;1.5V,-,AA,14.5x50mm,- AA68-00790A MANUAL USERS;K15A,W/P100(G),32PAGE,A5,1’ AA68-00791A MANUAL USERS;K15A,W/P100(G),32PAGE,A5,1’ * AA59-00077AREMOCON;-,TM59,SZM370PH,25,L/GRAY,SS,E AA68-30004A MANUAL-BOOK;-,W/P120(G),-,SEPA,-,- PLUG 3721-000136 PLUG-CONVERSION;2P,4.0mm,N,NI...
  • Page 26 MEMO Samsung Electronics...

  • Page 27: Block Diagram

    I C BUS KA2163B(TA1282N) SZM370TH IC301 VERTICAL-AMP IC KA2131 D801~D804 125V SWITCHING Q401 12.5V TRANS HORIZONTAL-TR POWER-CORD KSC5386 S:125V,12.5V CP2-NO(4.0) T444S IC801S T801S IC802 5V MICOM PC802 MULTI-REGULATOR SAPS CONTROL IC KA7631 9V 1-CHIP PHOTO KA3SO680 COULPER FSV20A001(S) Samsung Electronics...
  • Page 28 MEMO Samsung Electronics...

  • Page 29: Wiring Diagrams

    A/V L IN CN703 TV-SOUND TV-SOUND R-IN R-IN R-OUT R-OUT V-OUT V-OUT SDA2 SDA2 L - IN L - IN L- OUT L- OUT ASSY V - IN V - IN AV-L OUT AV-L OUT AV-L IN AV-L IN Samsung Electronics...
  • Page 30 MEMO Samsung Electronics...

  • Page 31: Schematic Diagrams

    Schematic Diagrams 9. Schematic Diagrams 9-1 MAIN 1/4 TP10 TP11 TP10 TP11 : Power Line : Signal Line Samsung Electronics...
  • Page 32 Schematic Diagrams 9-2 MAIN 2/4 TP18 TP12 TP19 TP13 TP12 TP20 TP14 TP15 TP13 TP16 TP18 TP14 TP17 TP21 TP15 TP19 TP21 TP22 TP16 TP20 TP23 TP22 TP17 TP23 : Power Line : Signal Line Samsung Electronics...
  • Page 33 Schematic Diagrams 9-3 MAIN 3/4 TP38 TP30 TP24 TP31 TP25 TP36 TP37 TP32 TP26 TP33 TP27 TP32 TP25 TP34 TP27 TP33 TP31 TP24 TP35 TP34 TP28 TP26 TP30 TP28 TP35 TP29 TP29 TP36 TP37 TP38 : Power Line Samsung Electronics...
  • Page 34 Schematic Diagrams 9-4 MAIN 4/4 : Power Line : Signal Line Samsung Electronics...

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