Samsung CK331FVR5X/BWT Service Manual Download | Manualshive

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Troubleshooting

Samsung Electronics

5-1

5. Troubleshooting

5-1 No Video (Raster On, No Sound)

Yes

No

Open the IF Pin of Tuner

Check/Replace

TU01,

No

Measure the

Voltage of Each Pin

of TU01

Check IC901

Pins 39, 40

See "No Video"

(Sound OK)

See "No Sound"

(Video OK)

Check/Replace

IC901, IC201

Yes

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Summary of Contents for CK331FVR5X/BWT

Page 1: ...501FVR5S NWT COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications and IC Data Disassembly and Reassembly Alignment and Adjustment Troubleshooting Exploded View and Parts List Electric Parts List Block Diagram PCB Layout Diagram Wiring Diagram Schematic Diagrams 1 2 3 4 5 6 7 8 9 10 11 ...

Page 2: ...ELECTRONICS Samsung Electronics Co Ltd FEB 1999 Printed in Korea 3S15A 3121 ...

Page 3: ...ts 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 lead to the ...

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: ...ssible 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 megohm 7 Neve...

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: ...ure 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 14 Inch 20 Inch 21 Inch AC 100 260V 50 60Hz VHF UHF Telescopic dipole antenna 75 ohm unbalanced type 8 ohm 5W 5W Dual Type 16 ohm 3W Monitor Type Dual Type SYSTEM PAL I UHF PAL I VHF UHF PAL B G SECAM B G PAL B...

Page 8: ...ZM173ET W O TTX English Thai SZM173EW W O TTX English German French Dutch Italian Spanish Swedish Yugo Greek Croatian SZM173EE W O TTX English Romanian Hungarian Polish Czech Bulgarian SZM173ER W O TTX English Russian SPM175EE TTX West English German French Dutch Italian Spanish Swedish East English Czech Croatian Romanian Hungarian Polish SZM173EV W O TTX English Vietnamese Indonesian Malay IC902...

Page 9: ...42 X24CO4P Pin 8 SAA5291 Pin 52 TDA9859 Pin 32 KS24C040 Pin 8 IC TRANSISTOR TDA8133 TDA8356 TDA6101Q KA7630 TRANSISTOR TRANSISTOR 2SD1651 2SD1650 KSD5072 KSD5071 KSD1711 KSC5386 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 1 1 1 K2971M K7252M Fig 2 1 Semiconductor Base Diagrams ...

Page 10: ...2 4 Samsung Electronics MEMO ...

Page 11: ...reassembly Samsung Electronics 3 1 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: ... last step 2 If the EEPROM or CRT is replaced set PVA to 45 factory mode and set SC as follows 14 16 inch 0 20 inch 10 21 inch 12 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 SLEEP FACTORY 2 STAND BY DISPLAY P STD MUTE POWER ON 2 The ÒSERVICE FACTORY Ó ...

Page 16: ... 23 STEP 1 13 STEP 0 128 STEP 0 1 STEP 1 For East Europe 0 63 STEP 0 63 STEP 16 Only TTX Model 0 7 STEP 0 3 STEP OSD ABBREVIATION AGC SBT SCT SCR RG GG BG PSL PVS PVA PHS NSR STT VCO SC TSS CDL BLU FUNCTION AUTO GAIN CONTROL SUB BRIGHT SUB CONTRAST SUB COLOR RED DRIVE GAIN GREEN DRIVE GAIN BLUE DRIVE GAIN PAL VERTICAL SLOPE PAL VERTICAL SHIFT PAL VERTICAL AMPLITUDE PAL HORIZONTAL SHIFT NTSC SUB CO...

Page 17: ...s accessed in the factory by twice pressing the ÒSLEEP FACTORY FACTORY Ò key then white pattern will be displayed Even if the TV power is cut off the Aging Mode is not cancelled The aging mode is cancelled by repressing the ÒFACTORYÓ key or pressing the local ÒCH UP DOWNÓ keys 4 2 4 Option Bytes In the Service Mode various can be selected via the Option Bytes 8 bits each Example NON TTX MICOM ONLY...

Page 18: ...07Q RGB AMP D3 No Auto Power On Auto Power On D2 NTSC 25K Hz NTSC TABLE PAL 50K Hz PAL TABLE NTSC 25KHz NTSC TABLE PAL 27KHz NTSC TABLE D1 NOT USED MUST LOW D0 D2 D1 COLOR SYSTEM SOUND SYSTEM Remark 0 0 CB NO OSD German Army CS 0 1 CW RF AUTO PAL SECAM NT4 43 A V AUTO PAL SECAM NT4 43 NT3 58 B G D K I 1 0 CD RF AUTO PAL NT4 43 A V AUTO PAL NT4 43 NT3 58 D K I 1 1 CS RF AUTO PAL SECAM NT4 43 NT3 58...

Page 19: ...p TDA6107Q MUST HIGH D3 No Auto Power On Auto Power On D2 NTSC 25 KHz NTSC TABLE PAL 50 KHz PAL TABLE NTSC 25KHz NTSC TABLE PAL 27KHz NTSC TABLE D1 PAL SECAM SECAM L France Swiss only HIGH D0 MUST LOW D2 D1 SOUND SYSTEM COLOR SYSTEM Destination 0 0 B G D K CK MODEL AUTO NO OSD Eastern Europe France Swiss 0 1 I ONLY NO OSD CI CII MDL United Kingdom 1 0 B G ONLY NO OSD CB CX MDL Western Europe 1 1 N...

Page 20: ...TDA6108 RGB AMP Sharpness level up when using the TDA6107Q AMP D3 No Auto Power On Auto Power On D2 NTSC 25 KHz NTSC TABLE PAL 50 KHz PAL TABLE NTSC 25 KHz NTSC TABLE PAL 27 KHz NTSC TABLE D1 D0 Function Required 1 PICTURE OFF after 15 minutes during no signal 2 AUDIO MUTE during no signal SCREEN available 4 TIMER available 5 P STD Classification CON BRI SHAR COL STANDARD MODE DYNAMIC MODE MOVIE M...

Page 21: ... z NTSC T A B LE P A L 50 KH z PAL T A B LE NTSC 25 KHz NTSC TABLE PAL 27 KHz NTSC TABLE D1 D0 D2 D1 COLOR SYSTEM SOUND SYSTEM 0 0 CK AUTO NO OSD B G D K 0 1 CW RF AUTO PAL SECAM NT4 43 A V AUTO PAL SECAM NT4 43 NT3 58 B G D K I 1 0 CB RF PAL ONLY A V AUTO PAL NT4 43 NT3 58 B G ONLY NO OSD 1 1 CS RF AUTO PAL SECAM NT4 43 NT3 58 A V AUTO PAL SECAM NT4 43 NT3 58 B G D K I NT M Destination BYTE 0 BYT...

Page 22: ...A V AUTO PAL NT4 43 NT3 58 B G ONLY NO OSD Indonesia Thailand India 1 1 CS RF AUTO PAL SECAM NT4 43 NT3 58 A V AUTO PAL SECAM NT4 43 NT3 58 B G D K I NT M Vietnam Malaysia SZM 173ET 16K Z90203 WITHOUT LINE STEREO SZM 173EV 24K Z90234 WITH LINE STEREO Function Required 1 PICTURE OFF after 15 minutes during no signal 2 AUDIO MUTE during no signal BLUE SCREEN ON OFF 4 TIMER CLOCK ON OFF 5 No CHILD LO...

Page 23: ... 50 KHz PAL TABLE NTSC 25 KHz NTSC TABLE PAL 27 KHz NTSC TABLE D1 MUST HIGH D0 D2 D1 COLOR SYSTEM SO U ND SY ST E M R emar k 0 0 CK AUTO NO OSD B G D K No sou nd system in the A V M O D E 0 1 CW RF AUTO PAL SECAM NT4 43 A V AUTO PAL SECAM NT4 43 NT3 58 B G D K I 1 0 CB RF PAL ONLY NO OSD A V AUTO PAL NT4 43 NT3 58 B G O NL Y NO O SD 1 1 CS RF AUTO PAL SECAM NT4 43 NT3 58 A V AUTO PAL SECAM NT4 43 ...

Page 24: ...C T A B LE P A L 50K H z P A L T A B LE NT SC 25K H z NT SC T A B LE P A L 27K H z NT SC T A B LE ALL RF VOL CURVE BASIC LOW D1 MUST LOW D0 D2 D1 SOUND SYSTEM COLOR SYSTEM Remark 0 0 B G D K CK MODEL AUTO NO OSD No SOUND SYSTEM in the A V Mode 0 1 I ONLY NO OSD CI CII MODEL 1 0 B G ONLY NO OSD CB CX MODEL 1 1 NOT USED Destination Application MICOM BYTE 0 BYTE 1 LANGUAGE MP OPTION BYTE United Kingd...

Page 25: ...isconnected 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 power is switched ON If t...

Page 26: ...tor 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 130 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 convergence yoke into the CRT and set in as shown in Fig 4 2 4 Input a bla...

Page 27: ...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 SLEEP FACTORY FACTORY 2 Input a Toshiba pattern b Low Light Adjustment 1 Set SBT to 1 3 0 2 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 c High ...

Page 28: ...tant 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 lines 7 Repeat adjustments 2 6 if necessary 8 Since the 4 pole magnets and 6 pole magnets interact the dot movement is com...

Page 29: ...Ó and PVA 40 so that the lion head circle becomes oval 3 Adjust with PVS Vertical shift so that the top margin of the picture is 4 Fig 4 7 4 Adjust with PSL Vertical Slope so that the bottom margin of the picture is 4 Fig 4 8 5 Adjust with PHS Horizontal Shift so that the lion head pattern and CRT centers are aligned Fig 4 9 6 Adjust PHS using the width coil so that the left and right margins of t...

Page 30: ...MEMO 4 16 Samsung Electronics ...

Page 31: ... 5 Troubleshooting 5 1 No Video Raster On No Sound Yes No Open the IF Pin of Tuner Check Replace TU01 No Measure the Voltage of Each Pin of TU01 Check IC901 Pins 39 40 See No Video Sound OK See No Sound Video OK Check Replace IC901 IC201 Yes ...

Page 32: ... No Check the 125V 13 0V B Lines Check IC802 Pin 9 5V Check Replace IC801 D801 F802 Check Replace IC802 KA7630 Check IC901 Pin 18 Stand by 0V Normal 5V Check Replace IC901 Check IC901 Pin 16 4V Check Replace IC901 µ com Check IC201 Pin 40 H out Check Replace IC201 Q401 Q402 ...

Page 33: ...eck IC201 Pin 6 CVBS Check Replace IC201 Check IC201 Pins 19 20 21 Check IC201 pin 27 Y IN Check Replace IC201 Q203 Check IC501 on the CRT PCB Check Replace IC501 Check Replace R417 R505 HEATER 6 3Vrms D503 CRT G1 pin CRT V999 Yes No Check IC201 Pin 12 37 8V Check Replace IC802 KA7630 ...

Page 34: ... IC201 Check IC602 Pin 4 B 10 12 5V Check Replace Q903 Q907 Check IC602 Check Replace IC602 Check IC602 Pins 1 7 0V Check Replace R812 R813 Yes Yes No Yes Yes 5 5 No TTX No No See No Video Check IC901 Pin 31 32 33 34 35 Check Replace QT02 IC901 Check IC201 Pin 23 24 25 26 Check Replace IC201 Check IC901 Pins 24 Check Replace IC901 Yes No Yes Yes ...

Page 35: ... 501F ABS HB 1 1 6 AA61 40007A STOPPER PCB 5038 5368 ABS HB NTR 1 1 7 AA65 30105A CLAMP WIRE NYLON 66 V2 NTR 15MM ALL MODEL 1 1 8 AA64 10705A KNOB CONTROL 501F ABS HB BLK 1 1 9 3001 000275 SPEAKER 2 5W 16ohm 90dB 105Hz 1 1 10 6002 000514 SCREW TAPPING RH 2 M4 L15 ZPC BLK SWRCH18 2 2 AA03 10001D CRT COLOR A34KQV42X 380MG 14 90DEG 5 1 2 1 AA65 30106A CLAMP D COIL NYLON 66 V2 NTR 14 INCH 2 2 2 AA27 2...

Page 36: ...814 2008 000267 R FUSIBLE S 2 4ohm 5 2W AA TP 3 9x10mm R815 2008 000267 R FUSIBLE S 2 4ohm 5 2W AA TP 3 9x10mm T444 AA26 30001YTRANS FLYBACK FSV 20A001 20 125V V999 3704 001090 SOCKET CRT 9P 15 24PI 26 5PI SN ASSY CRT AA03 10029WCRT COLOR A48KRD82X H 380mG 20 90de AA27 00002AMAGNET CONVERGENCE JH291 SC OB 29 1MM AA27 50004WDEFLECTION YOKE DSE 1992LL 1H 20 A48KRD82X ASSY SPEAKER 3001 000003 SPEAKER...

Page 37: ...202 000210 C CERAMIC MLC AXIAL 270pF 10 50V Y5P TP 1 9x3 5 7 C602 2401 000030 C AL 22uF 20 25V GP TP 5x11 5 C603 2301 000445 C FILM PEF 4 7nF 5 50V TP 5 5x7x3mm 5mm C604 2401 001323 C AL 470nF 20 50V BP TP 5x11 5mm C610 2401 001998 C AL 1000uF 20 25V GP TP 10x20 5mm C613 2202 000796 C CERAMIC MLC AXIAL 1NF 10 50V Y5P TP 3 5X1 9MM C614 2202 000210 C CERAMIC MLC AXIAL 270pF 10 50V Y5P TP 1 9x3 5 7 C...

Page 38: ... 4mm L702 2701 000184 INDUCTOR AXIAL 4 7uH 10 2 5x3 4mm L703 2701 000184 INDUCTOR AXIAL 4 7uH 10 2 5x3 4mm L704 2701 000184 INDUCTOR AXIAL 4 7uH 10 2 5x3 4mm L706 2701 000184 INDUCTOR AXIAL 4 7uH 10 2 5x3 4mm L801 AA29 30001BFILTER LINE 27mH L804 3301 000287 CORE FERRITE BEAD AA 3 5x1 0x6 0mm 1500 2400G L805 2901 000297 FILTER EMI ON BOARD 3A 3 5x5 TP L807 2901 000297 FILTER EMI ON BOARD 3A 3 5x5 ...

Page 39: ...R923 2001 000281 R CARBON 100OHM 5 1 8W AA TP R924 2001 000449 R CARBON 2 2KOHM 5 1 8W AA TP R925 2001 000449 R CARBON 2 2KOHM 5 1 8W AA TP R926 2001 000290 R CARBON 10KOHM 5 1 8W AA TP R927 2001 000290 R CARBON 10KOHM 5 1 8W AA TP R928 2001 000066 R CARBON S 10KOHM 5 1 2W AA TP R929 2004 000253 R METAL 11Kohm 1 1 8W AA TP 1 8x3 2mm R930 2004 000218 R METAL 10Kohm 1 1 8W AA TP 1 8x3 2mm R931 2004 ...

Page 40: ...UND IC B 12 5V TO µ COM B 5V FBT 20 FSV 20A001 21 14 FSV 14A001 SOUND AMP 1CH x 3W TDA7056B OPTION SPEAKER 16R x 1EA SOUND AMP TDA7057AQ 4W x 2CH TDA7056B 3WX2CH VERTICAL AMP TDA8356 RGB AMP TDA6107Q H OUT TR KSC5386YD CRT FBT B 125V SWITCH MULTI REGULATOR KA7630 TO 1CHIP B 8V SPEAKER 8R x 2EA or 16R x 2EA BPF 4 5MHz NTSC SIF NTSC PAL I2C BUS MONO SPEAKER DUAL SPEAKER CD CB CK MODEL DELETE Z90203 ...

Page 41: ...205 114 162 DZ208 154 189 DZ301 122 84 DZ302 54 81 DZ401 45 145 DZ501 34 221 DZ502 41 230 DZ503 48 238 DZ504 51 238 DZ701 35 118 DZ702 35 121 DZ703 25 125 DZ704 76 221 DZ705 46 118 DZ802 153 218 DZ803 107 57 DZ804 158 34 DZ806 142 211 DZ807 169 30 DZ808 175 17 DZ809 173 8 DZ901 117 200 DZ902 207 132 DZ903 232 179 DZ905 222 163 DZ907 201 100 DZ908 232 82 DZ909 127 113 HC101 59 172 IC201 86 141 IC30...

Page 42: ...2 3 4 5 6 7 8 SOUND L IN SOUND L OUT SOUND R OUT FRONT VIDEO IN GND 21 PIN VIDEO IN GND CRT PCB POWER CORD 1 2 3 4 5 CUT OFF G OUT R OUT B OUT GND 1 2 3 4 R OUT L OUT R OUT L OUT CN501B CN602 CN701 9 10 11 SOUND R IN GND FRONT AUDIO OUT 21 PIN AUDIO IN 6 7 8 HEAT 180V GND ...

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