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TV - Conventional CRT, LCD Projectors, TFT, Plasma, Big Screen, HDTV, Home theater - Service manuals, repair tips

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File name:cz-21h42t.rar
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Extracted files:9
File name 01_Cover.pdf

COLOR TELEVISION RECEIVER Chassis : Model : KS1A(P)_Rev.1 CZ20F32TSXXEH CZ20F42ZSXXEH CZ20H42TSXXEH CZ21H42TSXXEH CZ21V53NSXXEH CZ20F32ZSXXEH CZ20H12TSXXEH CZ21F52TSXXEH CZ21S43NSXXEH COLOR TELEVISION RECEIVER CONTENTS 1. Precautions 2. Specifications and IC Data 3. Disassembly and Reassembly 4. Alignment and Adjustment 5. Troubleshooting 6. Exploded View and Parts List 7. Electrical Parts List 8. Block Diagram 9. Wiring Diagram 10. Schematic Diagrams ELECTRONICS © Samsung Electronics Co., Ltd. Nov. 2002 Printed in Korea 3KS1A-SEH-1109
File name 02_Precaution.pdf

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 protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including: nonmetallic control knobs and compartment covers. 3. Make sure that there are no cabinet openings through which people--particularly children--might insert fingers and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet mask, excessively wide cabinet ventilation slots, and improperly fitted back covers. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohms, an abnormality exists that must be corrected before the unit is returned to the customer. 4. Leakage Current Hot Check (Figure 1-1): Warning: Do not use an isolation transformer during this test. Use a leakagecurrent tester or a metering system that complies with American National Standards Institute (ANIS C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7). 5. With the unit completely reassembled, plug the AC line cord directly into the power outlet. With the unit's AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including: antennas, handle brackets, metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5 milliamp. Reverse the powerplug prongs in the AC outlet and repeat the test. DEVICE UNDER TEST TEST ALL EXPOSED METAL SURFACES 2-WIRE CORD ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED) LEAKAGE CURRENT TESTER (READING SHOULD NOT BE ABOVE 0.5mA) EARTH GROUND Fig. 1-1 AC Leakage Test 6. Antenna Cold Check: With the unit's AC plug disconnected from the AC source, connect an electrical jumper across the two AC prongs. Connect one lead of the ohmmeter to an AC prong. Connect the other lead to the coaxial connector. 7. X-ray Limits: The picture tube is especially designed to prohibit X-ray emissions. To ensure continued X-ray protection, replace the picture tube only with one that is the same type as the original. Carefully reinstall the picture tube shields and mounting hardware; these also provide X-ray protection. 8. High Voltage Limits: High voltage must be measured each time servicing is done on the B+, horizontal deflection or high voltage circuits. Correct operation of the X-ray protection circuits must be reconfirmed whenever they are serviced. (X-ray protection circuits also may be called "horizontal disable" or "hold-down".) Heed the high voltage limits. These include the X­ray Protection Specifications Label, and the Product Safety and X-ray Warning Note on the service data schematic. 1-1 Pr
File name 03_Product Specification.pdf

Specifications and IC Data 2. Specifications and IC Data 2-1 Specifications Television System: MODEL CI CII CX CK CW CS SYSTEM PAL-I (UHF) PAL-I (VHF/UHF) PAL-B/G, SECAM-B/G PAL-B/G, D/K, SECAM-B/G, D/K PAL-B/G, D/K, SECAM-B/G, D/K, NT 4.43 PAL-B/G, D/K, SECAM-B/G, D/K, NT4.43, NT3.58 PAL/SECAM- PAL, SECAM- D/K B/G,I 2 - 12 21 - 69 1 - 13 21 - 69 SECAM-K1, PAL-D 2-9 13 - 57 NTSC - M Channels: System Band VHF UHF 2 - 13 14-69 Intermediate Frequencies (MHz) : SYSTEM IF Carrier Frequency Picture IF Carrier Sound IF Carrier Color Sub Carrier PAL/SECAM-D/K, PAL/ SECAM- B/G SECAM-K1 38.90 33.40 34.47 38.90 32.40 34.47 Quick start, in-line-gun, PAL - I NTSC - M 38.90 32.90 34.47 38.90 34.40 35.32 Picture Tube: 14 Inch 20 Inch 21 Inch A34KQV42X A48KRD82X(H) A51KQJ63X Black stripe, 90 degree deflection Power Requirements: Antenna Input Impedance: Speaker Impedance AC 100~240V, 50/60Hz VHF, UHF : Telescopic dipole antenna (75 ohm unbalanced type ) 8 ohm, 5W+5W (Dual Type) 16 ohm, 3W (Monitor Type & Dual Type) Samsung Electronics 2-1 Specifications and IC Data 2-2 IC Line Up Table 2-1 IC Line-Up Loc. No HC101 Specification PAP103 SPM802ER Description IF PRE-AMP TTX, English/Croatian/Romanian/Hungarian/Polish/Czech/ Bulgarian/Russian/Portugal Remark IC201S SPM802ERN W/O TTX, English/Croatian/Romanian/Hungarian/Polish/Czech/ Bulgarian/Russian/Portugal VERTICAL OUTPUT RGB DRIVE AMP SOUND-AMP (3W x 1CH or 3W x 2CH or 5W x 2CH) POWER IC (STR) CUSTOM REGULATOR (5V, 8V, 3.3V) EEPROM PHOTO COUPLER SIF - IC Philips IC301 IC501 IC601 IC801S IC802 IC902 PC801S IC101 LA7840 TDA6107Q Sanyo Philips TDA7266S KA5Q0765R KA7632 24C08/KS28C040 TCET1108 / LTV817B U4468B TEMIC 2-2 Samsung Electronics Specifications and IC Data 2-3 Semiconductor Base Diagrams ELECTROLYTICCONDENSER DIODE IC SPM-802ERN(Pin 64) SPM-802ER(Pin 64) X24CO8P(Pin 8) KS24C080(Pin 8) U4468B(Pin 16) TRANSISTOR TRANSISTOR IC SAW-FILTER G3956M K9260M 2SD1651 2SD1650 2SD2499 KSA614 1 KSC815-Y KSA539-Y BC548 KTC9014 UPC574J or KA33V 11 B C E E B C IC LA7840 TDA6107Q KA7632 TRANSISTOR KSR1012 KSR1010 KSR2010 KTD863-Y KSC2331-Y E C B Fig. 2-1 Semiconductor Base Diagrams Samsung Electronics 2-3 MEMO 2-4
File name 05_Alignment & Adjustment.pdf

Alignment and Adjustments 4. Alignment and Adjustments 4-1 Preadjustment 4-1-1 Factory Mode 1. Do not attempt these adjustments in the Video Mode. 2. The Factory Mode adjustments are necessary when either the EEPROM (IC902) or the CRT is replaced. 3. Do not tamper with the "Adjustment" screen of the Factory Mode menu. This screen is intended only for factory use. 4-1-3 When CRT Is Replaced 1. Make the following adjustments AFTER setting up after setting up purity and convergence : White Balance Sub-Brightness Vertical Center Vertical Size Horizontal Size Fail Safe (This adjustment must be the last step). 2. If the EEPROM or CRT is replaced, set PVA to 40 (factory mode) and set SC as follows. 14 inch : 0 20 inch : 9 21 inch : 9 4-1-2 When EEPROM (IC902) Is Replaced 1. When IC902 is replaced all adjustment data revert to initial values. It is necessary to re-program this data. 2. After IC902 is replaced, warm up the TV for 10 seconds. 4-2 Factory/Service Mode 4-2-1 Procedure for the "Adjustment" Mode 4. Selection sequences for the all system: 1. This mode uses the standard remote control. The Service Mode is activated by entering the following remote-control sequence : (1) DISPLAYFACTORY. (2) STAND-BY DISPLAY MENU MUTE POWER ON. 2. The "SERVICE (FACTORY)" message will be displayed. The Service Mode has four components: ADJUST, OPTION and Reset. 3. Access the Adjustment Mode by pressing the "VOLUME" keys ( Up or Down). The adjustment parameters are listed in the accompanying table, and selected by pressing the CHANNEL keys (v ,w). DOWN or UP key: SCT>SBT>BLR>BLB>RG>GG>BG>VSL> VS>VA>HS>SC>SDL>STT>SSP>PDL> NDL>PSR>NSR>AGC>VOL>LCO>TXP 5. The VOLUME keys increase or decrease the adjustment values (stored in the non-volatile memory) when Adjustment Mode is cancelled. 6. Cancel the Adjustment Mode by re-pressing the "FACTORY" or "Power OFF" keys. Samsung Electronics 4-1 Alignment and Adjustments 4-2-2 Main Adjustment Parameter OSD SCT SBT BLR BLB RG GG BG VSL VS VA HS SC CD L ST T SSP PDL ND L PSR NSR AG C VO L L CO T XP F U N CT I ON Su b Co n t ra s t Su b Bri g h t n e s s Bl a c k Le v e l o f fse t Blu e Bl a c k Le v e l o f fse t Red R ed Gain G re e n G a i n Bl u e G a i n Ve r t i ca l S lo p e Ve r t i ca l Sh i f t Ve r t i ca l A m p l i tu d e H o r i z o n t a l Sh i f t S- Co r r e c t i o n Ca t h o d e Dri ve Le ve l Su b T i n t Su b Sh a rp n e s s P AL De l a y NT SC De l a y P A L Su b c o l o R N T SC Su b c o l o R A u to m a t i c G a i n Co n t r o l Vo l u m e p re s e t t i n g SE CAM - L V i s i o n I F TTX Pos it ion R AN GE 0 ~ 23 0 ~ 23 0 ~ 15 0 ~ 15 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 15 0 ~ 7 0 ~ 7 0 ~ 15 0 ~ 15 0 ~ 23 0 ~ 23 0 ~ 63 0 ~ 63 0 ~ 1 0 ~ 15 I N I T I A L D AT A 13 9 9 7 32 25(Fix) 31 19 38 40(Fix) 30 9 9 3 0 15(Fix) 10 2 5 23 10 0 9 RE MARK NOTE : PVS,PVA, PHS, parameters must be aligned using the 50Hz vertical-field rates. 4-2 Samsung Electronics Alignment and Adjustme
File name 06_Troubleshooting.pdf

Troubleshooting 5. Troubleshooting 5-1 No Video (Raster On, No Sound) Open the IF Pin of Tuner Measure the Voltage of Each Pin of TU01S No Check/Replace TU01S Yes Check IC201S Pins 2,3 Yes No Check/Replace IC201S See "No Sound" (Video OK) Check IC201S Pins 40,49,50 No Check/Replace IC501, IC201S See "No Video" (Sound OK) See "No Sound" (Video OK) Samsung Electronics 5-1 Troubleshooting 5-2 No Power Check the 125V, 13.0V B+ Lines No Check/Replace IC801S, D801S, D802S, D803S,D804S,FP801S Yes Check IC802 Pin 8 (8V) Pin 9 (9V) Pin 10 (5V) No Check/Replace IC802 (KA7632) Check IC201S Pin 1 (3.3V) No Check/Replace IC201S Yes Check IC201S Pin 1 : Stand-by : 0V Normal : 3.3V No Check/Replace IC201S, (µ-com). Check IC201S, Pin 33 (H-out) No Check/Replace IC201S, Q401, Q402. 5-2 Samsung Electronics Troubleshooting 5-3 No Video (Sound OK) Check IC201S Pin 40 (CVBS) No Check/Replace IC201S Yes Check IC201S Pins 38/R214, R215 No Check IC201S Pin 49 (V-GUARD) Pin 50 (Cut-off) Pin 51~53 (R,G,B-out) No Check/Replace IC201S Yes Check IC501 on the CRT PCB No Check/Replace IC501 Check/Replace R421, R505 (HEATER 6.3Vrms) D503 (CRT G1 pin) CRT, V999S Samsung Electronics 5-3 Troubleshooting 5-4 No Sound (Video OK) Check IC201S Pin 44 (Sound Out) No Check/Replace IC201S Yes Check IC601 Pins 6 (0V) Yes Check/Replace Q904, IC201S No Check IC601 Pin 3,13 (B+ 10-12.5V) No Check/Replace R814, R815 Yes Check IC601 No Check/Replace IC601 Yes Check/Replace A/V Front assembly. 5-5 No TTX Check IC201S No Check/Replace IC201S Yes See No Video 5-4 Samsung Electronics
File name 08_Electrical Part List.pdf

Electrical Parts List 7. Electrical Parts List 7-1 CZ20F32TSXXEH Level Loc. No. Code No. Description ; Specification Remark Level Loc. No. Code No. Description ; Specification Remark ASSY PCB MAIN(OPT) 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 AA94-05693A ASSY PCB MAIN(OPT);CZ501FT,KS1A HA68-02176A 0401-000005 0401-000005 0402-001111 0402-001111 0402-001111 0402-001111 0402-000254 0402-000254 0402-001105 0402-001105 0402-001105 0402-001105 0402-001105 0402-001105 0402-001105 0402-001352 0403-000508 0403-000508 0403-000508 0403-000508 0403-000508 0403-000508 0403-000508 0403-000700 0403-000700 0403-000700 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-000720 0403-001140 0403-001221 0403-001317 0403-001318 0403-001322 0403-001327 0403-001328 0403-001328 0501-000283 0501-000283 0501-000369 0501-000389 0501-000389 0501-000389 0501-000389 0501-000389 0501-000389 1405-000187 2001-000005 2001-000005 LABEL;LABEL DIODE-SWITCHING;1N4148,100V,200mA,DO-35, DIODE-SWITCHING;1N4148,100V,200mA,DO-35, DIODE-RECTIFIER;1N5397GP,600V,1.5A,DO-20 DIODE-RECTIFIER;1N5397GP,600V,1.5A,DO-20 DIODE-RECTIFIER;1N5397GP,600V,1.5A,DO-20 DIODE-RECTIFIER;1N5397GP,600V,1.5A,DO-20 DIODE-RECTIFIER;RGP10J,600V,1A,DO-41,TP DIODE-RECTIFIER;RGP10J,600V,1A,DO-41,TP DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;ERB43-04SV1,400V,1.0A,-, DIODE-RECTIFIER;GUF15G-20A,400V,1.5A,DODIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;MTZJ5.6B,5.6V,5.45-5.73V,500 DIODE-ZENER;TZP33A,33V,31-35V,1W,DO-41,T DIODE-ZENER;TZP33A,33V,31-35V,1W,DO-41,T DIODE-ZENER;TZP33A,33V,31-35V,1W,DO-41,T DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;MTZJ9.1B,9.1V,8.57-9.01V,500 DIODE-ZENER;RD10ESAB-T4,10V,9.19-10.30V, DIODE-ZENER;UZ39BSB,35.36-37.19V,500MW,D DIODE-ZENER;MTZJ3.0B,3.01-3.22V,500mW,DO DIODE-ZENER;MTZJ4.3B,4.17-4.43V,500mW,DO DIODE-ZENER;MTZJ8.2B,7.78-8.1
File name 09_Block Diagram.pdf

Block Diagram 8. Block Diagram 8-1 KS1A T U NE R -F /S T A E L -G 2 5 3 D SI F SA W K9260M V I F SA W G3956M 2 S/ W 2 V E R T IC AL AMP L A7840 I 2C P r e-A M P P A P 10 3T SY ST E M O PT IO N 23 24 U4468B (Option) S/W 11 1 12 32 21/ 22 8 RGB A M P T D A 6107 Q 50- 53 C R T 8R * 2E A 16R * 2E A 16R * 1E A 8R * 1E A IC -M C U S P M -8 0 2 X X X 2 -3 I 2C 33 45 - 48 38 28 42 35 AUDIO A M P 44 T DA 7266S AUDIO E 2P R OM 24C08 A V I N PU T V IDE O AUDIO AV OUT H -O UT TR 2SD 2499 V IDE O R /G / B / FB F B T ( 14",2 0",21") FS V - 14 A 0 0 4 C (S) 180V TO C RT ± 16.5V TO Ver . A M P Heat TO C RT 3.3V TO M CU 5V T O TUN ER 8V TO M CU 13V TO SOU ND AM P AC CHIP ON CH I P K A 5 Q 07 6 5 R S/W MULTI REGULATOR KA7632 8-1
File name 10_Wiring Diagram.pdf

Wiring Diagram 9. Wiring Diagram 9-1 KS1A POWER CORD CRT PCB CN501 1 2 3 4 5 6 7 8 CN501B 1 2 3 180V NC HEAT GND CUT-OFF B-OUT G-OUT R-OUT 180V GND HEAT CN603 R+ OUT R- OUT L+ OUT L- OUT 1 2 3 4 CN701 1 SOUND L OUT 2 SOUND L IN SOUND R OUT 3 SOUND R IN 4 FRONT AUDIO IN 5 6 GND 21 PIN AUDIO IN 7 GND 8 21 PIN VIDEO IN 9 GND 10 FRONT VIDEO IN 11 Samsung Electronics 9-1 MEMO 9-2
File name CZ-21H42T.pdf

Schematic Diagrams 10. Schematic Diagrams 10-1 IF & VIF/SIF & CHROMA TP07 TP03 TP04 TP05 TP06 TP12 TP13 TP11 TP10 TP08 TP09 TP14 TP01 TP02 Samsung Electronics 10-1 Schematic Diagrams 10-1-1 IF & VIF/SIF & CHROMA WAVEFORMS TP01 TP07 TP13 TP02 TP08 TP14 TP03 TP09 TP04 TP10 TP05 TP11 TP06 TP12 10-2 Samsung Electronics Schematic Diagrams 10-2 A/V(RCA)-SW & SUB ASSY TP15 TP15 TP16 TP16 Samsung Electronics 10-3 Schematic Diagrams 10-3 A/V(SCART)-SW & SUB-ASSY TP15 TP15 TP16 TP16 10-4 Samsung Electronics Schematic Diagrams 10-4 POWER & V/H-DEFLECTION & CRT TP17 TP22 TP18 TP19 TP21 TP20 TP20 TP19 TP21 TP18 TP17 TP22 Samsung Electronics 10-5



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