Samsung CS2551SX Service Manual
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Samsung CS2551SX Service Manual

Samsung CS2551SX Service Manual

Chassis: ks2a(p)
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COLOR TELEVISION RECEIVER
COLOR TELEVISION RECEIVER
Chassis :
KS2A(P) (REV.1)
Model :
CS2551SX/XTT
1.
2.
3.
4.
5.
6.
Exploded Views and Parts List
7.
8.
9.
10.
CONTENTS

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Summary of Contents for Samsung CS2551SX

  • Page 1: Table Of Contents

    COLOR TELEVISION RECEIVER Chassis : KS2A(P) (REV.1) Model : CS2551SX/XTT COLOR TELEVISION RECEIVER CONTENTS Precautions Reference Information Specifications Alignment and Adjustments Troubleshooting Exploded Views and Parts List Electrical Parts List Block Diagrams Wiring Diagram Schematic Diagrams...
  • Page 2 ELECTRONICS © Samsung Electronics Co., Ltd. JUN. 2001 Printed in Korea 3KS2A-CHA2551-01...

  • Page 3: Precautions

    Heed the high voltage limits. These include not exceed 0.5 milliamp. Reverse the power- the X–ray Protection Specifications Label, and plug prongs in the AC outlet and repeat the the Product Safety and X-ray Warning Note on test. the service data schematic. 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 overheating, and correct any potential hazards. Samsung Electronics...
  • Page 5 Make sure that the portion around 8. Always connect a test instrument’s ground the serviced part has not been damaged. lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last. 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: Reference Information

    Millimeter Hour Millisecond Inches Per Second Millivolt Kilowatt-hour Nanofarad Ω Kilogram Kilohertz Picofarad kΩ Kilohm Pound Kilometer Revolutions Per Minute km/h Kilometer Per Hour Revolutions Per Second Kilovolt Second (Time) Kilovolt-ampere Volt Kilowatt Volt-ampere Liter Watt Megahertz Watt-hour Samsung Electronics...
  • Page 8 Fail Safe Voltage Controlled Oscillator Ground VCXO Voltage Controlled Crystal Oscillator Green-Y Very High Frequency High Video Intermediate Frequency High-Frequency Variable Resistor HI-FI High Fidelity Video Tape Recorder Inductance-Capacitance VTVM Vacuum Tube Voltmeter Integrated Circuit Transistor Intermediate Frequency Samsung Electronics...
  • Page 9 KA7806 6V Regulator 8V Controlled Regulator IC803 KA78R08 IC903 KA78RM33 3.3V Regulator MICOM Reset IC IC904 KIA7025AP Q909 IIC Level Shifter 2N7000 Q910 TCPW3001PD09A(S) Refer to Table 2-3-4 Main Tuner with IF Block TU01 Rectifier Diode D813 FML-G12S Samsung Electronics...
  • Page 10 LOC. NO SPEC REMARK DESCRIPTION IC501 TDA6101Q Video Output AMP R.G.B Drive IC502 IC503 QF04 2SC2344 Option Push-Pull (VM) 2SA1011 QF05 Option V-S/W ICS01 TEA6425 Video Switching IC with Adder Output High-end Picture-In Picture IC Option SDA9488X ICP01 Samsung Electronics...
  • Page 11 FUNCTION TCPS3001PD09A(S) CS, Stereo IF IC = Sanyo CS, Stereo TCPS3001PD09D(S) IF IC = Philips TCPS3001PD09C(S) CS, Stereo, India Table 2-3-5 HORIZONTAL DRIVE IC (Q401) REMARK SPEC FUNCTION 50Hz, With EW Model KSD5703 KSC5386 50Hz, W/O EW Model Samsung Electronics...
  • Page 12 MEMO Samsung Electronics...

  • Page 13: Specifications

    AV1 : Scart I/O, RGB Input, RF Out 2Scart Input/Output Jacks AV2 : Scart I/O, Monitor Out Option DVD Input(YPbPr) Back AV1: Video/Audio-R/Audio-L AV2: Video/Audio-R/Audio-L RCA Input/Output Monitor Out : Video/Audio- R/Audio-L Option S-VHS Specifications are subject to change. Samsung Electronics...
  • Page 14 MEMO Samsung Electronics...

  • Page 15: Alignment And Adjustments

    2. Turn on the TV. Set the Brightness and Contrast controls to minimum (zero beam current). 3. Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 30 KV under any conditions. Samsung Electronics...
  • Page 16 29” 1.3R / SDI 5. Turn the SCREEN VR until “MRCR G B” and “MRWDG” are green and those value are about 100. (The incorrect SCREEN Voltage may result that “MRCR G B” and “MRWDG” should be red) Samsung Electronics...
  • Page 17 7. Adjust CA-100 so that the final adjustment value can be fixed. 8. Use the Channel Up/Down ( / ) buttons to move the cursor on the adjustment modes. 9. Use the Volume +/- buttons to change the adjustment value. Samsung Electronics...
  • Page 18 (ft) 15PF 21” 1.7R East South Asia 21PF 25PF 29” 1.3R 14” 21” 1.7R Middle East Asia & Africa 21PF 25PF 29” 1.3R 15PF 21” 1.7R 21PF 25PF 29” 1.3R 15PF 21” 1.7R 21PF Australia 25PF 29” 1.3R Samsung Electronics...
  • Page 19 PROM (sometimes MICOM) is replaced, the adjustment values should be controlled. - After the Service adjustment is completed, Do not select “Reset” in the service mode menu. (After above procedure is done, power is on initially and the “Plug and Play” will be operated.) Samsung Electronics...
  • Page 20 PIP PAL System Verical Position (PIP Box) PIP NTSC V.Pos 0 ~ 255 PIP NTSC System Vertical Position (PIP Box) PIP H.Pos 0 ~ 255 PIP Horizontal Position (PIP Box) PIP BLKLG 0 ~ 15 PIP BLanKing Level Green Samsung Electronics...
  • Page 21 Alignment and Adjustments 4-8-2(B) SCREEN CHANGE (I2C BUS GEOMETRIC ADJUSTMENT) V Shift V Amp V Slope V SC H Trapizium H EW H Symmetry H Parabola H Corner H Shift Samsung Electronics...
  • Page 22 Luminance vs Chrominance PAL System in Video mode 0 ~ 8 P.YC Delay Luminance vs Chrominance SECAM System in Video mode 0 ~ 8 S.YC Delay Luminance vs Chrominance NTSC System in Video mode 0 ~ 8 N.YC Delay Samsung Electronics...
  • Page 23 Alignment and Adjustments Note 1. Beam Control Limit Characteristic beam 1.8mA 1.6mA BCL GAIN BCL THESHOLD WDRGB Table 3. YC Delay Adjustment Table SECAM NTSC Delay Def. Def. Def. Value Samsung Electronics...
  • Page 24 Alignment and Adjustments Table 4. Variable Factory Item 4-10 Samsung Electronics...
  • Page 25 Alignment and Adjustments Samsung Electronics 4-11...
  • Page 26 0 ~ 63 SIM806EI, Delay 1(Video) svm Video model Delay 0 ~ 7 SIM806C Only 0 ~ 127 svm Limit Value Velocity Limit svm Delay for RGBout Velocity Delay 0 ~ 15 svm Coring Velocity Coring 0 ~ 15 4-12 Samsung Electronics...
  • Page 27 Slope 1 [0...15] “Soft Limit” is that Limitting Soft Limit Slope B the peak white without range=256...511 feed-back, but “Peak Limit” is Slope 2 [0...15] that with feed-back for white peak level tilt 1 [0...511] tilt 2 [0...511] 1023 Samsung Electronics 4-13...
  • Page 28 Built in LNA Tuner Built in Normal Tuner Include in Equalizer function ( MSP34X0D) Equalizer Without Equalizer function (MSP34X5D) High deviation mode on MSP34XX High deviate Normal mode on MSP34XX TTX Model TTX On/Off W/O - TTX Model 4-14 Samsung Electronics...
  • Page 29 Built in LNA Tuner Built in Normal Tuner Include in Equalizer function ( MSP34X0D) Equalizer Without Equalizer function (MSP34X5D) High deviation mode on MSP34XX High deviate Normal mode on MSP34XX TTX Model TTX On/Off W/O - TTX Model Samsung Electronics 4-15...
  • Page 30 Include in Equalizer function ( MSP34X0D) Equalizer Without Equalizer function (MSP34X5D) High deviation mode on MSP34XX High deviate Normal mode on MSP34XX AKB Function On AKB Function Off Without Video Pannel Key AV by CH Key With Video Pannel Key 4-16 Samsung Electronics...
  • Page 31 TTX List Mode Priority is higher than FLOF Mode On/Off TTX List Prior (SIM806EA Only) when TTX Mode Table 5. VDP Version Remark Description Chroma IC is VDP3108B Normal Version IC Chroma IC is VDP3130Y DVD Version IC Samsung Electronics 4-17...
  • Page 32 DVD Tint Contro “Y” Subtint value in DVD Mode DVD Subtint 0 ~ 100 Only Electronic High Tension Offset coefficient EHT Offset 0 ~ 535 Electronic High Tension Horizontal coefficient EHT Horizontal -128 ~ 127 H-BOW H-ANGLE 4-18 Samsung Electronics...
  • Page 33 OSD-B OSD-G OSD-R Scart1 Ident VDD 2.5V Scart2 Ident Key 1 X-TAL Out H-Sync X-TAL In V-Sync MICOM Reset Key 3 N.C. Key 2 N.C. X-Ray Protect VDD 3.3V IR Input Stand-By LED N.C. Time LED Relay Samsung Electronics 4-19...
  • Page 34 Scart1 Ident SC1-ID SC2-ID Scart2 Ident Key1 Input Key1 H-Sync Horizontal Sync Input Vertical Sync Input V-Sync Key3 Input Key3 Key2 Key2 Input X-Ray X-Ray Protection IR-In Remocon Signal Input STD-LED LED Drive Output(Red) TIM-LED LED Drive Output(Green) 4-20 Samsung Electronics...
  • Page 35 Fast Blank/Half Contrast Output OSD-B CORE VDD 2.5V VDD 3.3V PX.Y When The Caption Function Adopted, Used. PX.Y N.C. Not Used (Programmed Gound Level) N.C. Sound Amp Mute S-Mute High Picture On/Off Control Power Not Used (Programmed Gound Level) N.C. Samsung Electronics 4-21...
  • Page 36 MEMO 4-22 Samsung Electronics...

  • Page 37: Troubleshooting

    IC902 IC803, 805 IC804 Replace Check Normal Abnormal Check Q401 and IC803 IC902 Normal Horizontal Circuit Check FBT and B+(130V) Check Abnormal Check the resistance of SCL, SDA Line FD803 Replace FD803 Normal Check IC801, D801 FUSE Samsung Electronics...
  • Page 38 Abnormal Screen Voltage R.G.B Signal Output from IC201 Check Normal the signal output from IC201 Pin Check Normal Q202, Q203, Q204, Abnormal Q207, Q209, Q213, Q206, Q208, Q210 Check tuner B+ Check / Replace and Main CVBS IC201 Samsung Electronics...
  • Page 39 4 12 Check Normal Check the signal input IC602 B+ to IC601 Pin Abnormal Normal Abnormal Normal Check Check/Replace Replace Check IC601 B+ the resistance tuner B+ and SIF IC602 of FD802 Abnormal Check/Replace Check B+ Line (8V) IC601 Samsung Electronics...
  • Page 40 5-4 Horizontal Lines Appear on screen Horizontal Lines Apper on screen Check Normal Abnormal IC301 B+ (16V, -16V) Check B+ Line and the fusible Check resistance of R425, 424 Normal the VDP Signal output from IC201 Abnormal Check/Replace Check IC301 IC201 Samsung Electronics...
  • Page 41 Exploded View & Parts List 6. Exploded View & Parts List 6-1 CS2551SX/XTT Code No Description Specification Q’ty Remark AA90-00704A ASSY CABINET FRONT;-,CS2551S AA64-30951B CABINET-FRONT;-,2551,-,HIPS,-,BLK,3,- AA63-00188B GRILLE SHEET;CS2551N,PI0.5,PS,T0.4,SV-012P, ASSY-CHASSIS OPTION AA64-70117B BADGE-BRAND;AL,SS,SILVER,L65,R2000,-,- AA64-01645A KNOB POWER;CS2551N,ABS,-,SV-012P,-,HB,-,- AA61-00479E SPRING-CS;,0CR18NI9,0.5,N6,OD10,H18 ASSY-CHASSIS OPTION...

  • Page 42: Electrical Parts List

    Electrical Parts List 7. Electrical Parts List 7-1 CS2551SX/XTT Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY PCB MAIN(COM) ..2 C417 2305-000665 C-FILM,MPEF;100nF,5%,63V,TP,7.5x4.0x5.0mm, ..2 C418 2401-002597 C-AL;220uF,20%,35V,GP,TP,10x12.5,5 ..2 C419 2202-000796 C-CERAMIC,MLC-AXIAL;1NF,10%,50V,Y5P,TP,3.5X1.9MM,- 0.1 *...
  • Page 43 0402-000546 DIODE-RECTIFIER;TVR10G,400V,1.0A,DO-41,TP ..2 F801B 3602-000114 FUSE-HOLDER;-,-,30mohm ..2 D410 0402-000493 DIODE-RECTIFIER;1R5GU41,400V,1.5A,DO-15L,TP ..2 FD801S 3601-001086 FUSE-FERRULE;125V,5A,FA,GLASS,2.4x7.5mm ..2 D411 0402-000546 DIODE-RECTIFIER;TVR10G,400V,1.0A,DO-41,TP ..2 FD802S 3601-001228 FUSE-AXIAL LEAD;125V,10A,FAST-ACTING,EPOXY-COA ..2 D413 0402-000537 DIODE-RECTIFIER;RH1A,600V,0.6A,DO-204AC ..2 FD803S 3601-001086 FUSE-FERRULE;125V,5A,FA,GLASS,2.4x7.5mm ..2 D501 0401-000005 DIODE-SWITCHING;1N4148,100V,200MA,DO-35,TP ..2 FP801S 3601-000281 FUSE-FERRULE;250V,4A,TL,GLASS,5.2x20mm Samsung Electronics...
  • Page 44 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 L806 3301-000287 CORE-FERRITE BEAD;AA,3.5x1.0x6.0mm,1500,2400G ..2 R237 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 L807 2901-000297 FILTER-EMI ON BOARD;-,3A,-,-,3.5x5,TP,- ..2 R238 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 L808 AA27-00098ACOIL CHOKE;-,-,24uH,10%,-,0.1,3.0A,DR10X1 ..2 R241 2001-000362 R-CARBON;150OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 L809 3301-000287 CORE-FERRITE BEAD;AA,3.5x1.0x6.0mm,1500,2400G ..2 R243 2001-000405 R-CARBON;180OHM,5%,1/8W,AA,TP,1.8X3.2MM Samsung Electronics...
  • Page 45 2001-001065 R-CARBON(S);110KOHM,5%,1/2W,AA,TP,2.4X6.4M ..2 R836 2003-002211 R-METAL OXIDE(S);91Kohm,5%,2W,AG,TP,3.9x12mm ..2 R509 2001-000405 R-CARBON;180OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 R901 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M ..2 R510 2001-001065 R-CARBON(S);110KOHM,5%,1/2W,AA,TP,2.4X6.4M ..2 R902 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 R511 2001-000405 R-CARBON;180OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 R903 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M ..2 R512 2002-001008 R-COMPOSITION;1.8Kohm,10%,1/2W,AA,TP,3.7x9mm ..2 R904 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M Samsung Electronics...
  • Page 46 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M 0.1 * AA97-01271AASSY ACCESSORY;,CS2551S,KS2A ..2 R929 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 R930 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM AA68-00806ACARD WARRANTY;ALL,PAPER,95X210,CLR,CHINA,SAM ..2 R931 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,1.8X3.2MM AA68-01312E MANUAL USERS;KS2A SAMSUNG,CHINA,CHI,W/P100G ..2 R932 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM 4301-001017 BATTERY-ALKALINE;1.5V,-,AA,14.5X50.5MM,- ..2 R933 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,1.8X3.2MM ..2 R934 2001-000515 R-CARBON;220OHM,5%,1/8W,AA,TP,1.8X3.2MM REMOCON ..2 R935 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,1.8X3.2MM...

  • Page 47: Block Diagrams

    Schematic Diagrams 8. Block Diagrams 8-1 Power Diagram Samsung Electronics...
  • Page 48 Schematic Diagrams 8-2 Block Diagram Samsung Electronics...

  • Page 49: Wiring Diagram

    Wiring Diagram 9. Wiring Diagram FRONT AV PCB CN06A TO SPEAKER CN05A CN01A CN501B GT804 CN502B +16V Heater 180V CN501A CN602 B Out G Out R Out CN701 Sense CN502A +16V Heat 220V GT102 Samsung Electronics...
  • Page 50 MEMO Samsung Electronics...

  • Page 51: Schematic Diagrams

    J @ @ @ 7 @ @ 5 @ @ @ H ? @ f @ ? ? @ f @ ? ? @ f @ ? TP01 TP06 TP10 TP04 TP08 TP05 TP05 TP03 TP07 TP02 TP04 TP06 Samsung Electronics 10-1...
  • Page 52 @ @ e @ ? e @ @ @ @ @ @ @ @ ? @ @ @ @ @ e @ @ @ 5 @ ? e @ @ @ @ @ @ @ @ ? @ @ @ @ @ f @ H TP13 TP12 TP13 TP14 TP15 TP11 TP14 TP15 10-2 Samsung Electronics...
  • Page 53 ? @ @ @ @ @ @ @ @ @ 1 ? ? @ ? @ @ @ @ @ @ @ @ @ @ ? ? @ TP23 TP17 TP23 TP22 TP24 TP18 TP16 TP18 TP17 TP19 TP25 TP21 TP19 TP20 TP24 TP25 TP20 TP21 Samsung Electronics 10-3...
  • Page 54 @ @ @ @ @ @ @ @ @ @ @ @ ? h f ? @ @ ? f @ ? h e @ @ TP35 TP33 TP26 TP34 TP34 TP28 TP27 TP32 TP35 TP29 TP31 TP28 TP29 TP30 TP30 TP31 10-4 Samsung Electronics...
  • Page 55 Schematic Diagrams 10-5 POWER (W/O -EW) Samsung Electronics 10-5...
  • Page 56 Schematic Diagrams 10-6 PIP 10-6 Samsung Electronics...
  • Page 57 Schematic Diagrams 10-7 VIDEO SWITCH Samsung Electronics 10-7...

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