Samsung CS21K2DX/BWT, Service Manual

Page 1: ...X BWT VWT NWT 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 1 2 3 4 5 6 7 8 9 10 ...

Page 2: ...ELECTRONICS Samsung Electronics Co Ltd APR 2001 Printed in Korea 3KS1B 2101 ...

Page 3: ...dle brackets metal cabinets screwheads and control shafts The current measured should not exceed 0 5 milliamp Reverse the power plug prongs in the AC outlet and repeat the test 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 le...

Page 4: ...t 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 15 Observe the original lead dress especially near the following areas Antenna wiring sharp edges and especially the AC and high voltage power supplies Always inspect for pinched out of p...

Page 5: ...g and accessible conductive parts examples metal panels input terminals and earphone jacks 6 Insulation Checking Procedure Disconnect the power cord from the AC source and turn the power switch ON Connect an insulation resistance meter 500V to the blades of the AC plug The insulation resistance between each blade of the AC plug and accessible conductive parts see above should be greater than 1 meg...

Page 6: ...trical charges that damage ESDs 5 Use only a grounded tip soldering iron when soldering or unsoldering ESDs 6 Use only an anti static solder removal device Many solder removal devices are not rated as anti static these can accumulate sufficient electrical charge to damage ESDs 7 Do not remove a replacement ESD from its protective package until you are ready to install it Most replacement ESDs are ...

Page 7: ... Carrier Frequency Picture IF Carrier Sound IF Carrier Color Sub Carrier PAL SECAM D K 1 13 21 69 PAL SECAM D K SECAM K1 38 90 32 40 34 47 SECAM K1 PAL D 2 9 13 57 PAL I 38 90 32 90 34 47 MODEL CI CII CX CK CW CS 21 Inch AC 100 240V 50 60Hz VHF UHF Telescopic dipole antenna 75 ohm unbalanced type 8 ohm 5W 5W Dual Type 8 ohm 3W Monitor Type SYSTEM PAL I UHF PAL I VHF UHF PAL B G SECAM B G PAL B G D...

Page 8: ...B PHOTO COUPLER SPM802ER TTX English Croatian Romanian Hungarian Polish Czech Bulgarian Russian Portugal IC201S Philips Philips Philips SPM802ERN W O TTX English Croatian Romanian Hungarian Polish Czech Bulgarian Russian Portugal VERTICAL OUTPUT LA7845 TDA8943 TDA8944 IC301 IC602 IC603 SOUND AMP 5W x 2CH SOUND AMP 3W x 1CH IC801S KA5Q1265R POWER IC STR IC802 KA7632 CUSTOM REGULATOR 5V 8V 3 3V IC10...

Page 9: ...2ER Pin 64 X24CO8P Pin 8 KS24C080 Pin 8 U4468B Pin 16 IC TRANSISTOR LA7845 TDA6107Q KA7632 TRANSISTOR TRANSISTOR 2SD1651 2SD1650 2SD2499 KSA614 KSD5703Y B C E E B C KSC815 Y KSA539 Y BC548 KTC9014 IC UPC574J or KA33V SAW FILTER E C B KSR1012 KSR1010 KSR2010 KTD863 Y KSC2331 Y KTC3197 1 1 1 G3956M K9260M Fig 2 1 Semiconductor Base Diagrams ...

Page 10: ...2 4 MEMO ...

Page 11: ...ics 3 1 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 ...

Page 12: ...Separate the socket board from the CRT neck 2 Remove the Anode Cap from the CRT 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 ...

Page 13: ...3 3 Speaker Removal Disassembly and reassembly Samsung Electronics 3 3 1 Remove the speaker by pressing the tension rib 1 Remove the screws 2 Remove the speaker by pressing the tension rib ...

Page 14: ...RT to the front cabi net Lift the CRT 3 Caution Because of the high vacuum and large surface area of the picture tube be careful while handling it 1 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 ...

Page 15: ...ast 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 21 inch Flat 10 4 2 Factory Service Mode 4 2 1 Procedure for the Adjustment Mode 1 This mode uses the standard remote control The Service Mode is activated by entering the following remote control sequence 1 DISPLAY FACTORY 2 STAND BY DISPLAY MENU MUTE POWER ON 2 The SERVICE F...

Page 16: ...er t i cal S lope 0 63 VS Ver t i cal Shi f t 0 63 VA Ver t i cal Am pl i tud e 0 63 HS Hor i zont al Shi f t 0 63 SC S Cor r ec t i on 0 63 CDL Cat hode Dri ve Level 0 15 STT Sub Ti nt 0 7 SSP Sub Sharpnes s 0 7 PDL PAL Del ay 0 15 NDL NTSC Del ay 0 15 PSR PAL Sub c ol oR 0 23 NSR N TSC Sub c ol oR 0 23 AGC Autom at i c Gai n Cont r ol 0 63 VOL Vol ume pre s et t i ng 0 63 L CO SECAM L V i s i on...

Page 17: ...ption Bytes In the Service Mode various can be selected via the Option Table Example 1 2 3 4 5 6 7 8 9 10 11 Option Table xx xx xx xx LNA SYSTEM AUDIO JACK ZOOM AUTO POWER SBL 2nd SIF HOTEL MODE BKS HIGH DEVIA ON CZ MONO RCA NOR ZOOM 16 9 ON OFF ON OFF ON OFF ...

Page 18: ...e that the power cord is disconnected before replacing any parts 8 To protect against shock hazard use an isola tion transformer 4 3 2 Automatic Degaussing A degaussing coil is mounted around the pic ture tube so that external degaussing after moving the TV should be unnecessary But the receiver must be properly degaussed upon installation The degaussing coil operates for about 1 sec ond after the...

Page 19: ...lloscope probe 2 Input a gray scale pattern Use a pattern gen erator PM5518 3 Use the P mode key on the remote control for the STANDARD picture 4 Adjust the Screen VR on the FBT so that the voltage on the oscilloscope becomes 125 2 5V See Fig 4 1 4 3 6 Purity Adjustment 1 Warm up the receiver for at least 20 minutes 2 Plug in the CRT deflection yoke and tighten the clamp screw 3 Plug the convergen...

Page 20: ...tment 31m m Vertical Green Belt Fig 4 4 1 2 a Set up 1 Warm up the TV for at least 30 minutes in the Aging Mode OSD White This mode is dis played by entering the following sequence DISPLAY FACTORY FACTORY 2 Input a Toshiba pattern b Low Light Adjustment 1 Set SBT to 2 5 0 5 fL in the Factory Service Mode with using CA100 See Fig 4 4 2 Adjust RG BG so that the levels are suitable to each local area...

Page 21: ...and the blue vertical lines in the center area of the screen 5 Turn the both tabs at the same time keeping the angle constant and superimpose the red and blue horizontal line in the center of the screen 6 Adjust the two tab pairs of the 6 pole magnets to superimpose the red and blue line onto the green Changing the angle affects the vertical lines and rotating both magnets affects the horizontal l...

Page 22: ...0 so that the lion head circle becomes oval 3 Adjust with VS Vertical shift so that the top margin of the picture is 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 Fig 4 9 6 Adjust HS using the width coil so that the left and right margins of the picture are...

Page 23: ...al Abnormal Abnormal Abnormal Counect the Power code Check the Power LED Check the X tal SDA SCL port of IC201S Check the 33 Pin H Drive of IC201S Check the 130V A Line Check the 3 3V A 8V A Line of IC201S Check Replace IC802 Replace IC201 S Check the FBT D808 Check the 12 5V A Line Check the FD802S IC801S or AC Fuse Check Replace Q401 ...

Page 24: ...rmal Abnormal Check RK GK BK Signal Check R G B Signal into CRT PCB Check the resistance of R512 Check IC201S Pin 49 V GUARD Pin50 IK Check IC501 B 180V B Check the Voltage of heater Check CRT and FBT Check Replace D407 FBT Re Adjust Screen Voltage Replace R512 Check CRT and FBT Check Replace IC201S Check Replace R418 R513 D503 Check IC201S Pin 51 52 53 R G B ...

Page 25: ...ire Check Replace IC601 Check B Line 5V B 8V B Check IC101 TUNER Check Replace IC201S See No Power Check IC101 TUNER Replace IC602 Replace IC610 R611 Replace FD801S D805 Check IC602 Pin8 9 Check IC601 Pin47 SIF Check IC601 B Check IC201S Pin32 SIF Check IC602 B Check R610 R611 Check FD801S D805 Abnormal Abnormal Abnormal Abnormal Abnormal Abnormal Abnormal Abnormal MONO STEREO ...

Page 26: ... Lines Appear or Screen 5 5 No TTX Abnormal See No Video Sound ok Check IC201S Check Replace IC201S Normal Normal Normal Abnormal Abnormal Check R413 R414 D405 D406 Check IC201S Check IC201S Pin 21 22 VDN VDP Check IC301 B 16V C 13 5V C Check Replace IC301 ...

Page 27: ... NTR 1 1 9 AA96 00358E ASSY SPEAKER 8ohm 5W 3001 000274 400 6 2 1 10 6003 001019 SCREW TAPTITE RH B M4 L12 ZPC BLK SWR 8 SPK CF 1 11 AA64 01436B INDICATOR LED 29K3 ACRYL CLR 1 1 12 AA64 01435B WINDOW REMOCON 29K3 PC V0 VIOLET 1 1 13 6003 001026 SCREW TAPTITE RH B M4 L15 ZPC BLK SWR 1 CF WR 1 14 AA64 01437B KNOB CONTROL 21 29K3 ABS G3676 SV012P HB 1 1 15 6003 001026 SCREW TAPTITE RH B M4 L15 ZPC BL...

Page 28: ...663A ASSY SPEAKER 8OHM 3W 3001 001020 300M 2 1 7 6003 001019 SCREW TAPTITE RH B M4 L12 ZPC BLK SWR 4 SPK CF 1 8 AA64 01702B KNOB CONTROL 21K2 ABS G3676 SV104M W971 1 1 9 6003 001019 SCREW TAPTITE RH B M4 L12 ZPC BLK SWR 1 KC CF 1 10 AA64 01694B WINDOW REMOCON 15K2 ACRYL CLR 1 1 11 6003 001019 SCREW TAPTITE RH B M4 L12 ZPC BLK SWR 1 WIN CF 2 AA03 00257A CRT COLOR A51QDX991X101 380MG 1 85MH 18 1 2 1...

Page 29: ...L405 AA27 00159A COIL HORIZ WIDTH 140UH 140UH YL 81 DR 1 3 L808 AA27 00098A COIL CHOKE 24uH 10 0 1 3 0A DR10X 3 LD201 AA96 00555A ASSY LED GUIDE UEX LD 030 GREEN S N A 3 LX801S AA29 30002F FILTER LINE NOISE 6mH 2 45A 3 NT802S 1404 001045 THERMISTOR NTC 4 7ohm 15 2900K 35 0mW T 3 PC801S 0604 001038 PHOTO COUPLER TR 130 260 200mW DIP 4 ST 3 PT801S 1404 001156 THERMISTOR PTC 9OHM 30 20 220VRMS 27 3 R...

Page 30: ...5 0402 000534 DIODE RECTIFIER RG10V 400V 1 2A DO 201 T 4 D406 0402 000540 DIODE RECTIFIER RU20A 600V 1 5A TP 4 D407 0402 000546 DIODE RECTIFIER TVR10G 400V 1 0A DO 41 T 4 D501 0402 001105 DIODE RECTIFIER ERB43 04SV1 400V 1 0A 4 D502 0402 001105 DIODE RECTIFIER ERB43 04SV1 400V 1 0A 4 D503 0402 001105 DIODE RECTIFIER ERB43 04SV1 400V 1 0A 4 D504 0402 000010 DIODE RECTIFIER RGP15G 400V 1 5A DO 204A ...

Page 31: ...CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM 4 R272 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM 4 R273 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM 4 R274 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM 4 R275 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM 4 R276 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM 4 R277 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2MM 4 R279 2001 000...

Page 32: ...65 00011C CLAMP WIRE ALL MODEL NYLON 66 V2 NTR 25M S N A 2 AA96 00358E ASSY SPEAKER 8ohm 5W 3001 000274 400 6 3 3001 000274 SPEAKER 5W 8ohm 90dB 160Hz 3 AA39 00102S LEAD CONNECTOR ASSY 4P 35155 0400 REC 4 2 AA65 30105A CLAMP WIRE NYLON 66 V2 NTR 15MM ALL MODE S N A 2 AA64 01435B WINDOW REMOCON 29K3 PC V0 VIOLET 2 AA61 40113A STOPPER PCB 501H HIPS HB NTR 2 AA61 60003J SPRING CS SUS304 0 5 OD6 H12 N...

Page 33: ...02594 C AL 220uF 20 16V GP TP 8x11 5 5 4 C104 2401 000480 C AL 10uF 20 50V GP TP 5x11 5 4 C105 2305 000665 C FILM MPEF 100nF 5 63V TP 7 5x4 0x5 0m 4 C106 2401 002619 C AL 47uF 20 25V GP TP 5x11 5 4 C109 2202 000127 C CERAMIC MLC AXIAL 10nF 80 20 25V Y5V 4 C110 2202 000127 C CERAMIC MLC AXIAL 10nF 80 20 25V Y5V 4 C114 2401 001496 C AL 47uF 20 16V GP TP 5x7 5 4 C115 2305 000665 C FILM MPEF 100nF 5 6...

Page 34: ... 9 01V 500 4 DZ213 0403 000508 DIODE ZENER MTZJ5 6B 5 6V 5 45 5 73V 500 4 DZ214 0403 000508 DIODE ZENER MTZJ5 6B 5 6V 5 45 5 73V 500 4 DZ215 0403 000508 DIODE ZENER MTZJ5 6B 5 6V 5 45 5 73V 500 4 DZ216 0403 000720 DIODE ZENER MTZJ9 1B 9 1V 8 57 9 01V 500 4 DZ220 0403 000720 DIODE ZENER MTZJ9 1B 9 1V 8 57 9 01V 500 4 DZ221 0403 000720 DIODE ZENER MTZJ9 1B 9 1V 8 57 9 01V 500 4 DZ301 0403 001328 DIO...

Page 35: ...A TP 1 8X3 2MM 4 R305 2004 004097 R METAL 1 6Kohm 2 1 2W AA TP 6 5x2 5m 4 R306 2001 000016 R CARBON S 1OHM 5 1 2W AA TP 2 4X6 4MM 4 R307 2004 004097 R METAL 1 6Kohm 2 1 2W AA TP 6 5x2 5m 4 R308 2008 001013 R FUSIBLE S 1 2ohm 5 2W AF TP 3 9x10mm 4 R309 2003 002009 R METAL OXIDE S 390ohm 5 2W AF TP 3 9x 4 R310 2003 002009 R METAL OXIDE S 390ohm 5 2W AF TP 3 9x 4 R401 2001 000613 R CARBON 3 9KOHM 5 1...

Page 36: ...dB 140Hz 3 AA39 20501F LEAD CONNECTOR ASSY 3 2 P 67096 003 REC 2 AA61 40113A STOPPER PCB 501H HIPS HB NTR 2 AA64 01694B WINDOW REMOCON 15K2 ACRYL CLR 2 AA64 01697B DECORATION POWER 15K2 PC SEMI VIOLET 2 AA64 01699B CABINET FRONT 21K2 SV012P MPP HIPS HB G7 ASSY CABINET 1 AA90 00847B ASSY CABINET 21K2 CS21K2DX NWT 2 CB CF AA60 10050T SCREW TAPPING SWRCH18A M4 L20 RH 2S 2 CB RJ AA60 10050T SCREW TAPP...

Page 37: ...R S W MULTI REGULATOR 3 3V TO MCU 8V TO MCU I 2C AUDIO A M P TDA 8944J FBT 21 F 25 29 FUH S VIDEO AUDIO I 2C VIDEO SI F SA W K9260M U4468B AUDIO IC M C U SP M 802X X X 2 3 2 4 32 21 22 50 53 44 28 2 3 45 48 38 42 35 2 12 8 S W 2 S W 1 11 P r e A M P PAP103T SYSTEM OPTION R G B FB H OUT TR 3 3 16 5V TO Ver A M P 180V TO C RT Heat TO C RT 13V TO SOUND AMP 8R 2E A 8R 1E A KA7632 KSD 5703YD Option Q T...

Page 38: ...B Wiring Diagram CRT PCB POWER CORD 8 7 6 5 4 3 1 2 SOUND L IN SOUND R IN SOUND L OUT SOUND R OUT VIDEO IN GND VIDEO OUT GND 1 2 3 4 HEAT N C GND 180V CN501B 1 2 5 3 4 GND IK G OUT B OUT R OUT CN501A CN701 CN603 1 2 3 4 5 L OUT L OUT GND R OUT R OUT ...

Page 39: ...9 2 MEMO ...

Page 40: ...TP06 TP12 TP13 TP15 TP11 TP10 TP08 TP09 TP14 TP07 Schematic Diagrams 10 1 Samsung Electronics 10 Schematic Diagrams 10 1 MAIN 1 3 Power Line Signal Line TP01 TP02 TP04 TP05 TP07 TP08 TP10 TP11 TP13 TP14 TP03 TP06 TP09 TP12 TP15 ...

Page 41: ...Schematic Diagrams 10 2 Samsung Electronics 10 2 MAIN 2 3 TP02 TP01 TP06 TP05 TP04 TP03 TP01 TP02 Power Line Signal Line TP01 TP02 TP01 TP02 ...

Page 42: ...Schematic Diagrams 10 3 Samsung Electronics 10 3 MAIN 3 3 TP02 TP01 TP01 TP02 Power Line Signal Line ...

Page 43: ...Schematic Diagrams 10 4 Samsung Electronics 10 4 POWER ...

Page 44: ...www s manuals com ...