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Samsung CZ20F12TSXVXEH Service Manual

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COLOR TELEVISION RECEIVER
www.rtv-horvat-dj.hr
www.rtv-horvat-dj.hr
COLOR TELEVISION RECEIVER
Chassis :
KS1A(P)
CZ20F12TSXVXEH
RTV servis Horvat
Tel:
++385-31-856-842
Tel/fax: ++385-31-856-139
Mob:
098-788-319
www.rtv-horvat-dj.hr
CONTENTS
1.
Precautions
2.
3.
4.
5.
6.
7.
8.
9.
10.

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Summary of Contents for Samsung CZ20F12TSXVXEH

  • Page 1: Table Of Contents

    COLOR TELEVISION RECEIVER Chassis : KS1A(P) Model : CZ20F12TSXVXEH RTV servis Horvat Tel: ++385-31-856-842 Tel/fax: ++385-31-856-139 Mob: 098-788-319 www.rtv-horvat-dj.hr COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications and IC Data Disassembly and Reassembly Alignment and Adjustment Troubleshooting Exploded View and Parts List...
  • Page 2 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 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. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 4 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 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. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 6: Model

    21 Inch A51KQJ63X Power Requirements: AC 100~240V, 50/60Hz Antenna Input Impedance: VHF, UHF : Telescopic dipole antenna (75 ohm unbalanced type ) Speaker Impedance 8 ohm, 5W+5W (Dual Type) 16 ohm, 3W (Monitor Type & Dual Type) www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 7 SOUND-AMP (3W x 1CH or 3W x 2CH or 5W x 2CH) KA5Q0765R POWER IC (STR) IC801S CUSTOM REGULATOR (5V, 8V, 3.3V) IC802 KA7632 IC902 24C08/KS28C040 EEPROM PC801S TCET1108 / LTV817B PHOTO COUPLER SIF - IC IC101 U4468B TEMIC www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 8 U4468B(Pin 16) TRANSISTOR SAW-FILTER TRANSISTOR G3956M K9260M 2SD1651 UPC574J 2SD1650 2SD2499 KSC815-Y KA33V KSA614 KSA539-Y BC548 KTC9014 E B C TRANSISTOR LA7840 TDA6107Q KA7632 KSR1012 KSR1010 KSR2010 KTD863-Y KSC2331-Y E C B Fig. 2-1 Semiconductor Base Diagrams www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 9: 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). www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 10 3. Remove the main board by pulling it with both hands. 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. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 11 Disassembly and reassembly 3-3 Speaker Removal 1. Remove the speaker by pressing the tension rib. 1. Remove the screws. 2. Remove the speaker by pressing the tension rib. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 12 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. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 13: Alignment And Adjustment

    3. Access the Adjustment Mode by pressing the “VOLUME” keys ( Up or Down). The adjust- ment parameters are listed in the accompany- ing table, and selected by pressing the CHAN- NEL keys ( , ). www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 14 SE CAM - L V i s i o n I F 0 ~ 1 T XP T T X P o s i t i o n 0 ~ 1 5 NOTE : PVS,PVA, PHS, parameters must be aligned using the 50Hz vertical-field rates. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 15 Alignment and Adjustments 4-2-3 Option Bytes In the Service Mode, various can be selected via the Option Table. Example: Option Table : xx xx xx xx SYSTEM AUDIO MONO JACK ZOOM NOR/ZOOM/16:9 AUTO POWER 2nd SIF HOTEL MODE www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 16 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. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 17 STANDARD picture. 4. Adjust the Screen VR (on the FBT) so that the voltage on the oscilloscope becomes 120+2.5V (See Fig. 4-1). 120 2.5V 14" :120 2.5V 20, 21" : 120 2.5V Fig. 4-1 www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 18 2. Adjust RG,BG so that the levels are suitable to each local area. (c) High-Light Adjustment 1. Set SCT to 55 FL (20”. 21”), 65 FL(14”) in the Factory Service Mode with using CA100. See Fig. 4-4 www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 19 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 www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 20 Fig. 4-7 4. Adjust with VS (Vertical shift) so that the top 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. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 21: Troubleshooting

    Check/Replace Voltage of Each Pin TU01S of TU01S Check IC201S Check/Replace Pins 2,3 IC201S See "No Sound" (Video OK) Check IC201S Check/Replace Pins 40,49,50 IC501, IC201S See "No Sound" See "No Video" (Video OK) (Sound OK) www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 22 Pin 9 (9V) Pin 10 (5V) Check IC201S Check/Replace IC201S Pin 1 (3.3V) Check IC201S Check/Replace Pin 1 : Stand-by : 0V IC201S, (µ-com). Normal : 3.3V Check/Replace Check IC201S, Pin 33 (H-out) IC201S, Q401, Q402. www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 23 Check IC201S Pins 38/R214, R215 Check IC201S Pin 49 (V-GUARD) Check/Replace Pin 50 (Cut-off) IC201S Pin 51~53 (R,G,B-out) Check IC501 Check/Replace on the CRT PCB IC501 Check/Replace R421, R505 (HEATER 6.3Vrms) D503 (CRT G1 pin) CRT, V999S www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 24 IC201S Check/Replace Check IC601 Q904, IC201S Pins 6 (0V) Check IC601 Check/Replace Pin 3,13 (B+ 10-12.5V) R814, R815 Check/Replace Check IC601 IC601 Check/Replace A/V Front assembly. 5-5 No TTX Check/Replace Check IC201S IC201S See No Video www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 25: Exploded View And Parts List

    Exploded View & Parts List 6. Exploded View & Parts List 6-1 CZ20F12TSXVXEH Code No Description Specification Q’ty Remark AA64-02373A CABINET-FRONT;20F1,HIPS,HB,SV-012P-II,GR HA91-20005A ASSY-CABINET,FRONT;20F1,SV-012P-II AA64-70127F BADGE-BRAND;NEW,AL,-,-,L40,R800,SILVER,S AA64-40450B WINDOW-REMOCON;-,501F,-,PC,V0,VIOLET,- HA64-25011A KNOB-POWER;20F1,21F1,HIPS,SV-012P-II,SIL AA61-60003T SPRING-CS;-,SUS304,-,-,OD7,N5,OD7,-,-,-, AA64-40451B INDICATOR-LED;-,33.501F,-,ACRYL,-,CLR,- AA65-30105A CLAMP-WIRE;ALL MODEL,NYLON 66,V2,-,NTR,1 AA64-02599A KNOB CONTROL;20F1,21F1,HIPS,HB,SV-012P-I 6002-000515 SCREW-TAPPING;RH,+,2,M4,L15,ZPC,SWRCH18...

  • Page 26: Electrical Parts List

    Electrical Parts List 7. Electrical Parts List 7-1 CZ20F12TSXVXEH Level Loc. No. Code No. Description ; Specification Remark Level Loc. No. Code No. Description ; Specification Remark ASSY PCB MAIN(OPT) R218 2001-000008 R-CARBON;15KOHM,5%,1/8W,AA,TP,1.8X3.2MM R602 2001-000008 R-CARBON;15KOHM,5%,1/8W,AA,TP,1.8X3.2MM R205 2001-000011 R-CARBON;75Kohm,5%,1/8W,AA,TP,1.8x3.2mm AA94-05701A ASSY PCB MAIN(OPT);CZ501FT,KS1A,CH R301 2001-000016 R-CARBON(S);1OHM,5%,1/2W,AA,TP,2.4x6.4MM...
  • Page 27 C805 2301-000235 C-FILM,PEF;3.9nF,5%,50V,TP,6.5x3.0x5.5mm L902 2701-000180 INDUCTOR-AXIAL;33UH,5%,2.5X3.4MM C309 2301-000254 C-FILM,PEF;39nF,5%,50V,TP,7.5x3.5x6.5mm, L904 2701-000180 INDUCTOR-AXIAL;33UH,5%,2.5X3.4MM C606 2301-000111 C-FILM,PEF;1.8nF,5%,50V,TP,6.5x3.0x5.5mm L702 2701-000184 INDUCTOR-AXIAL;4.7UH,10%,2.5X3.4MM C217 2301-000342 C-FILM,PEF;2.2nF,5%,50V,TP,7.4x3.9x13mm, L703 2701-000184 INDUCTOR-AXIAL;4.7UH,10%,2.5X3.4MM C234 2301-000342 C-FILM,PEF;2.2nF,5%,50V,TP,7.4x3.9x13mm, L704 2701-000184 INDUCTOR-AXIAL;4.7UH,10%,2.5X3.4MM C407 2301-000383 C-FILM,PEF;10nF,5%,50V,TP,6x7x3.2mm,5mm L706 2701-000184 INDUCTOR-AXIAL;4.7UH,10%,2.5X3.4MM www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 28 3812-000219 WIRE-NO SHEATH CU;TCWA,300V,52mm(TAPING) EY421 AA60-40011A EYELET;ID2.0,OD2.8,-,-,BST,- J182 3812-000219 WIRE-NO SHEATH CU;TCWA,300V,52mm(TAPING) EY422 AA60-40011A EYELET;ID2.0,OD2.8,-,-,BST,- J185 3812-000219 WIRE-NO SHEATH CU;TCWA,300V,52mm(TAPING) EY423 AA60-40011A EYELET;ID2.0,OD2.8,-,-,BST,- J186 3812-000219 WIRE-NO SHEATH CU;TCWA,300V,52mm(TAPING) EY501 AA60-40011A EYELET;ID2.0,OD2.8,-,-,BST,- J187 3812-000219 WIRE-NO SHEATH CU;TCWA,300V,52mm(TAPING) EY802 AA60-40011A EYELET;ID2.0,OD2.8,-,-,BST,- www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 29 AA98-00079A ASSY-SUB,PART;KS1A,MAIN(OPT),PAL,- C604 2401-000480 C-AL;10uF,20%,50V,GP,TP,5x11,5 0202-000008 SOLDER-WIRE;S63S-W3.0,S63S,D3,SN63/PB37 HIC01 AA13-20004W IC-HYBRID;-,PAP103T,SIP,6P,PRE-AMP,TP 0202-000187 SOLDER-WIRE FLUX;-,RS60S,D1.2,63SN/37PB RW701 2011-001133 R-NETWORK;33K/24K/75x3,5%,1/8W,X,SIP,6P, 0204-000442 SOLVENT;1M-1000,C3H70H,96,- AA41-00131G PCB-MAIN;G,KS1A,FR-1,1L,C,1.6T,245 0204-001024 FLUX;DF-98TVS,-,20%,- C702 2202-000210 C-CERAMIC,MLC-AXIAL;270PF,10%,50V,Y5P,TP LR401S AA27-30001B COIL-LINEARLITY;-,195uH,QIC1010,PI0.4,4. R413 2003-001035 R-METAL OXIDE(S);27ohm,5%,2W,AF,TP,3.9x1 IC602 AA96-00848A ASSY H/S;,SOUND,AA62-30175D,TDA8943 www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...
  • Page 30 AA65-30009A CLAMP-FBT;ABS,V0,BLK,-,-,- AA65-30018A CLAMP-WIRE;DONG-A,NYLON-66,-,-,-,DATL-60 HA68-02179A LABEL-RATING;,58MM,54MM,WHITE HA83-00052A LP-TAPE-INK;,WIDTH 55 MM HA68-02177A LABEL-PQS;,135MM,35MM,WHITE HA83-00046A LP-TAPE INK;,WIDTH 105 MM ASSY CRT AA94-05858A ASSY CRT;A48KRD82X01(H),+380MG,20 AA03-10030G CRT COLOR;-,A48KRD82X01(H),+380mG,20,90 AA27-20003Y COIL-DEGAUSSING;-,20,15.2ohm,28T,L2170,E AA63-10002A BAND-TIE;-,NYLON66 V2,-,-,L100,NTR,-,- AA98-70031A ASSY-TBC,WIRE(P);DP,20,AA98-70014B,1P,TV AA65-30107A CLAMP-D,COIL;20~22 INCH,NYLON 66,V2,-,NT www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 31: Block Diagram

    Block Diagram 8. Block Diagram 8-1 KS1A T U NE R -F /S SI F SA W V E R T IC AL T A E L -G 2 5 3 D K9260M A M P S/ W V I F SA W G3956M L A7840 U4468B...

  • Page 32: Wiring Diagram

    SOUND L IN SOUND R OUT SOUND R IN CN603 FRONT AUDIO IN R + OUT R - OUT 21 PIN AUDIO IN L + OUT L - OUT 21 PIN VIDEO IN FRONT VIDEO IN www.rtv-horvat-dj.hr www.rtv-horvat-dj.hr Samsung Electronics...

  • Page 33: Schematic Diagrams

    10. Schematic Diagrams 10-1 ONECHIP & MICOM TP01 TP02 TP03 TP05 TP06 TP04 TP11 TP04 TP08 TP05 TP12 TP09 TP10 TP03 TP06 TP09 TP07 TP08 TP13 TP01 TP10 TP11 TP12 TP02 TP07 TP14 TP13 TP14 : Power Line Samsung Electronics 10-1...
  • Page 34 Schematic Diagrams 10-2 SOUND, EXT-A/V (RCA) TP01 TP01 TP02 TP02 : Power Line 10-2 Samsung Electronics...
  • Page 35 Schematic Diagrams 10-3 SOUND, EXT-A/V (SCART) TP01 TP01 TP02 TP02 : Power Line Samsung Electronics 10-3...
  • Page 36 Schematic Diagrams 10-4 POWER / CRT / VERTICAL / HORIZONTAL TP01 TP02 TP03 TP06 TP05 TP04 TP03 TP05 TP02 TP04 TP06 TP01 : Power Line 10-4 Samsung Electronics...

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