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Troubleshooting

4-10

Samsung Electronics

4-1-4  Troubleshooting by Blocks

1.  Tuner Diagnosis

  If there is no signal measured even though the RF signal received by the external antenna is input to the Main Board Tuner.

-  Supplied Power: 5V, 8V, 33V

-  RF Trouble Check: Check CVBS output

-  AUDIO Trouble Check: Check SiF Signal output

B+5V

B+33V 

IF

Summary of Contents for CS21A530FLKXSV

Page 1: ...LKXSV FRORU WHOHYLVLRQ FRQWHQWV 1 Precaution 2 Product Specification 3 Disassembly Reassembly 4 Troubleshooting 5 Exploded View Part List 6 Wiring Diagram 7 Schematic Diagram Refer to the service manual in the GSPN see the rear cover for the more information CS21A530FL ...

Page 2: ...stic law GSPN Global Service Partner Network Area Web Site North America service samsungportal com Latin America latin samsungportal com CIS cis samsungportal com Europe europe samsungportal com China china samsungportal com Asia asia samsungportal com Mideast Africa mea samsungportal com Samsung Electronics Co Ltd Aug 2009 Printed in Korea AA82 06081A ...

Page 3: ... Specifications Analysis 2 2 2 3 Accessories 2 3 3 Disassembly Reassembly 3 1 Overall Disassembly Reassembly 3 1 4 Troubleshooting 4 1 Troubleshooting 4 1 4 2 Adjustment 4 14 5 Exploded View Part List 5 1 CS21A530FLKXSV Exploded View 5 1 5 2 CS21A530FLKXSV Electrical Part List 5 3 6 Wiring Diagram 6 1 Overall Wiring 6 1 6 2 Pin Connection 6 3 7 Schematic Diagram 7 1 Circuit Description 7 1 7 2 Sch...

Page 4: ...ever make any changes or additions to the circuit design or the internal part for this product Ex Do not add any audio or video accessory connectors This might cause physical damage Furthermore any changes or additions to the original design engineering will invalidate the warranty 6 Warning Hot Chassis Some TV chassis are directly connected to one end of the AC power cord for electrical reasons W...

Page 5: ...d away from any heat emitting materials 10 Safety Indication Some electrical circuits or device related materials require special attention to their safety features which cannot be viewed by the naked eye If an original part is replaced with another irregular one the safety or protective features will be lost even if the new one has a higher voltage or more watts Critical safety parts should be br...

Page 6: ...ir original position 4 After the repair make sure to check if the screws parts or cables are properly installed Make sure no damage is caused to the repaired part and its surroundings 5 Check for insulation between the blade of the AC plug and that of any conductive materials i e the metal panel input terminal earphone jack etc 6 Insulation Check Process Unplug the power cord from the AC source an...

Page 7: ...the ESD 5 Use only grounded tip irons for soldering purposes 6 Use only anti static solder removal devices Most solder removal devices do not support an anti static feature A solder removal device without an anti static feature can store enough static electricity to cause damage to the ESD 7 Do not remove the ESD from the protective box until the replacement is ready Most ESD replacements are cove...

Page 8: ... it to the product This is a measure to protect it from being exposed to moisture Otherwise it may cause a fire or electric shock 5 Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product Also check the antenna cable or the external connectors if they are fully unplugged Damage to the cord may cause fire or electric shock 6 Keep the antenna far aw...

Page 9: ...MEMO 1 6 Samsung Electronics ...

Page 10: ...3 00580A RF Part 1 TUNER F S TUNER EWT 5F6T2 EW Power Input Voltage SEA 220 240V MID ASIR 100 240V W6753F Video MULTI SYSTEM NT PAL SECAM UOC TOP 1H Comb Filter Sound Output 5Wx2 LA42032 Cabinet 21AF0 Cabinet AM0 Cabinet Specification Model CS21A530FJ Screen Size 21 Dimensions WxHxD 573 x 331 4 x 465 2 mm Weight 18 kg Voltage SEA 220 240V MID ASIR 100 240V Speaker Output 5W 5W ...

Page 11: ...igital Noise Reduction O O AKB O O DNle Jr O O 3 2 Pull Down Support X X Audio Base Treble Balance X X Equalizer X X AVL X X Surround X X Speaker System Direct Direct Sperker Output 5W 5W 5W 5W Function Dual Screen Function X X Double Screen X X TTX X X Still Picture X X Auto Jack Recognition X X EPG X X Network X X FM Radio O X Ports Antenna In Rear 1 Rear 1 Extermal In Rear 2 Rear 1 S Video X X ...

Page 12: ... BN59 00891A 4301 000121 Samsung Service center Power Cord AA39 10006X Owner s Instructions AA68 03999B Warranty Card Registration Card Safety Guide Manual AA68 03242M 2 3 2 Accessories that can be purchased additionally Accessories Item Item code Remark RF Cable Electronics Store Internal shopping mall Video Cable Audio Cable Component Cables RCA ...

Page 13: ...MEMO 2 4 Samsung Electronics ...

Page 14: ...le 4 1 2 Basic Troubleshooting LED Diagnosis on the Front Panel 3 In case of a power failure or abnormal screen check the following items Check that the power cord is correctly connected to a 90 264 wall outlet Check that the Master Switch has been pressed Ch eck that the transmitter is turned on Check that transmitter device selection is set to TV Check that the signal cable is properly connected...

Page 15: ... making sure the polarity is correct Check if the angle or the distance is sufficient or if there is any interference between the product and the remote control Make sure the user has pressed the correct button To avoid direct sunlight to the receiving panel of the TV remove any indoor lighting or change the location of the TV Check if the power switch at the back left of the TV is turned on Canno...

Page 16: ... the wind Check the antenna for its lifetime Normally 3 5 years 1 2 years near the coast Dotted or semi dotted lines are displayed on the screen Install the antenna as far away from the road as possible The screen is black and white Adjust the color density Check if the connector is properly installed The colors of the screen are odd strange Adjust the color tones Unusual lines appear on the scree...

Page 17: ...vity Boost feature Contact your local broadcasting service station Use the number keys to select a specific channel and press Store Clear to memorize it Only the UHF 14 69 channels are not available Check if the antenna is able to receive UHF signals 6 Others Problem Solution The TV makes a noise as if something is dropping inside This noise may occur when the plastic material inside the TV expand...

Page 18: ... Diagnosis of trouble by the checksum is neither reliable nor convenient You can only use the checksume of the current direct view TV to determine whether the software is corrupted or not The Checksum value is determined according to the version of the software loaded on the set Therefore you can determine whether the software has been properly downloaded if you know the correct checksum for that ...

Page 19: ...the power cord or the master switch out of order Yes Yes Check that the cables ard properly connected to Main Board No Connect the cable No Is the cable from the Main Board th the CRT Ass y properly innected Is CRT higi voltage been measured Does the TV work SOUND IC MICOM SMD IC INPUT JACK DY JACK VERTICAL IC MAIN TRANS SMPS TR OUTPUT TR Q401 BRIDGE DIODE TUNER FBT EW DRIVER ...

Page 20: ...ower part of the Main Board Check Is the power cord or the master switch out of order Complete Yes Yes Yes Check the FUSE FP801S Check the D801S 1 Check the IC801S 1 W6753F No Picture No Sound Change FP801S Change D801S Change IC801S Check the others part Yes Yes No No F801A SMPS TR BRIDGE DIODE ...

Page 21: ...ronics 2 No Sound when the power is normal Check the 14V line Complete Yes Check FD801S Check D809C Change IC601 No sound 1st power OK Check IC201 Pin 39 40 Yes Yes No Change FD801S Change D809C No No MICOM SMD IC D809C SOUND IC FD801S ...

Page 22: ...Check the 125V line Complete Yes D811 open and check T444 B Pin 3 Open and check CHECK CRT ASS Y No picture 1st power OK Check D407 Yes Yes No Change the D811 Check the Q401 No No Check the others B line Yes Change the Q401 Change D407 No No Yes MAIN TRANS FBT D407 OUTPUT TR Q401 ...

Page 23: ... Blocks 1 Tuner Diagnosis If there is no signal measured even though the RF signal received by the external antenna is input to the Main Board Tuner Supplied Power 5V 8V 33V RF Trouble Check Check CVBS output AUDIO Trouble Check Check SiF Signal output B 5V B 33V IF ...

Page 24: ...ugh the ports If the signal input change and output are to is not detected check the following Supplied Power UOC TOP IC 5V 3 3V 8V Input Problem Check Check the connecting jacks G MONITOR OUT L MONITOR OUT R AV2 IN R AV R IN AV L IN AV IN V MONITOR OUT V AV2 IN V AV2 IN V GND MONITOR OUT V MONITOR OUT L Monitor OUT R AV2 IN R AV1 IN R AV1 IN L AV2 IN L AV1 IN L AV1 IN V ...

Page 25: ...Troubleshooting 4 12 Samsung Electronics 3 TDA12156H N3 Diagnosis IF MICOM VIDEO ...

Page 26: ...Troubleshooting Samsung Electronics 4 13 4 LA42032 Diagnosis Supplied Power 11V Input Problem Check L R Output Problem Check L L R R ...

Page 27: ...uch as the vertical size horizontal size focus etc Display a black and white picture on the screen to check if the picture is clearly displayed If there are some spotted points on the screen when displaying a black and white picture degauss the screen using the degauss coil If the spotted points remain re adjust the purity and the convergence This completes the basic performance examination ...

Page 28: ...us Move the cursor to select an item Adjust the selected configuration value 4 W B Setting No Item Data Required Adjustment 1 White Balance x 265 5 y 265 5 Y 45 3 White Balance Standard Data x 265 5 y 265 5 Y 1 5 0 3 2 Screen Voltage Toshiba Pattern Same As KSCB Chassis G2 Adjust Info Menu POWER ON Mute Option 23 6B B9 80 09 Hotel Option Deflection Video Adjust 1 Video Adjust 2 Video Adjust 3 Vide...

Page 29: ...hailand Vietnam By country By country 8 Lang Group East Asia Singapore East Asia East Asia 9 V Guard On Off On On 10 LNA On Off Off Off 11 Sound Detect BG DK I BG BG 12 DNIe JR On Off On On 13 Indonesia Mode On Off Off On 14 Tact Key On Off ON ON 2 Hotel Option No Item Selection Initial Data Others Indonesia model 1 Hotel Mode On Off Off Off 2 Power On Channel 0 99 1 1 3 Power on volume 0 100 10 1...

Page 30: ...Troubleshooting Samsung Electronics 4 17 ...

Page 31: ...gin 10 H Parabola Adjust 35 11 Upper Corner Adjust 45 12 Lower Corner Adjust 40 13 H Trapezium Adjust 25 14 Bow Adjust 25 15 Angle Adjust 30 4 Video Adjust 1 No Item Data Initial value Remarks 1 R Cutoff Adjust 32 2 G Cutoff FIX 32 3 B Cutoff Adjust 32 4 R Drive Adjust 32 5 G Drive FIX 32 6 B Drive Adjust 32 7 Sub Bright Adjust 10 8 Sub Contrast Adjust 15 9 Bluescreen Contrast Adjust 15 10 G2 Adju...

Page 32: ...ak White Limit FIX 6 9 TR 9 SECAM B Y Offset FIX 1 10 Peaking CF0 Delay Mode FIX 0 11 Sub Sharpness FIX 23 12 Video Dependent Coring RF FIX 3 13 Video Dependent Coring AV FIX 3 6 Video Adjust 3 No Item Data Initial value Remarks 1 RF AGC Adjust 30 2 11 0 05V 2 IF AGC Speed FIX 1 3 IF Demodulator FIX 38 4 Fast Filter IF PLL FIX 0 5 RF FOA FOB FIX 0 VCR RF output 6 AV FOA FOB FIX 0 7 RF PAL Ident Se...

Page 33: ...T Tracking Mode FIX 1 0 only on vertical 1 on vertical and EW 8 Scart R cutoff FIX 32 Scart W B 9 Scart G cutoff FIX 32 Scart W B 10 Scart B cutoff FIX 32 Scart W B 11 RGB Blanking Mode FIX 1 Secam Blanking 12 Wide Blanking Front FIX 0 Secam Blanking 13 Wide Blanking Rear FIX 6 Secam Blanking 14 Cut Off Contorl Range FIX 0 8 YC Delay No Item Data Initial value Remarks 1 PAL Delay FIX 12 2 SECAM De...

Page 34: ... Reduction FIX 1 6 OSD Brightness FIX 15 7 PWL Active FIX 1 0 not active 1 active 8 Bypass Peaking Delay FIX 0 0 normai operation 1 peaking delay bypassed 9 Ratio Pre After Shoot FIX 2 10 Ratio posi Nega Peaks FIX 2 11 Dynamic Skin FIX 0 0 123 degree 1 117 degree 12 Gamma White Stretch FIX 1 0 3 13 DC Transfer Ratio FIX 1 0 No black level shift 1 black level shift 14 NTSC Matrix FIX 0 0 Japanese m...

Page 35: ...e Factory Data adjustments must be performed according to the following procedures when replacing the Main Board 1 Display the Lion pattern 2 Press Power Off Info Menu Mute Power On using the remote control and enter Factory Mode 3 Enter Deflection Mode 4 Adjust the V AMP V SHIFT H EW and H SHIFT items so that the width becomes 92 and the height becomes 92 ...

Page 36: ...ern and check that the picture size has not been changed If there is no change finish the adjustments 3 Adjust BOW and the Angle settings so that the center line becomes a straight line 5 Adjust the Upper Corner and the Low Corner settings so thatthe end of the lines become straight 4 Adjust the H Parabola and H Trapezium settings so thatthe left and right lines become straight 6 Adjust the V Line...

Page 37: ...rder for the KSCB chassis when replacing the CRT PCB FBT or CRT 1 Display the Cross Hatch pattern 2 Set the Screen Adjustment to OK 3 Turn the Focus VR so that the horizontal and vertical lines are clearly displayed 4 Check the Focus for the entire screen and adjust the Focus VR if necessary Adjusting the Screen Voltage 1 Select 2 Initialize all settings to the values appropriate to the correspond...

Page 38: ...nd adjust Screen VR until Screen Adjust OK like the picture Adjusting the White Balance 1 Select 2 Initialize all settings to the values appropriate to the corresponding model 3 Display the Toshiba pattern and adjust the White Balance using CA100 with the coordinates of the corresponding model Screen VR CA100 Info Menu POWER ON Mute Power OFF ...

Page 39: ...ta Required Adjustment 1 White Balance x 265 5 y 265 5 Y 45 3 White Balance Standard Data x 265 5 y 265 5 Y 1 5 0 3 Check List for the Screen Voltage and White Balance Adjustment 1 The Screen Voltage and White Balance are connected to each other and both of them have to be configured to the correct values 2 Adjust the White Balance after the Screen Voltage was adjusted and check if the Screen Volt...

Page 40: ...MEMO Samsung Electronics 4 27 ...

Page 41: ...Exploded View Part List Samsung Electronics 5 1 5 Exploded View Part List 5 1 CS21A530FLKXSV Exploded View M0112 T0022 T0299 T0607 T0023 CIS7 T0063 M0006 T0066 T0175 T0003 M0014 T0091 ...

Page 42: ...3 AA96 05174T ASSY COVER P FRONT 21AF0 HIPS HB BKN1576 1 S A T0022 AA64 04537A KNOB CONTROL 21Z60 SIEL ABS HB BKN1576 1 S N A T0023 AA64 04538A KNOB POWER 21Z60 SIEL ABS HB BKN1576 1 S N A T0063 AA03 00580A CRT COLOR A51QGZ 791X301 0mG 0 900 2 30 1 S A T0066 AA96 20109B ASSY POWER CORD CP2 NO 4 0 H C250 KKP 1 S A T0091 AA94 16001A ASSY PCB MISC A V CT 21Z45 KOREA NARNIA 1 S A T0175 AA96 04766A ASS...

Page 43: ... 9x 1 S A R517 2001 000515 R CARBON 220ohm 5 1 8W AA TP 1 8x3 2mm 1 S A R518 2002 001017 R COMPOSITION 1Kohm 10 1 2W AA TP 3 7x9 1 S A R519 2002 001017 R COMPOSITION 1Kohm 10 1 2W AA TP 3 7x9 1 S A R520 2003 001093 R METAL OXIDE S 12Kohm 5 2W AF TP 3 9x 1 S A R521 2001 000515 R CARBON 220ohm 5 1 8W AA TP 1 8x3 2mm 1 S A R522 2003 001093 R METAL OXIDE S 12Kohm 5 2W AF TP 3 9x 1 S A R523 2001 000515...

Page 44: ...OBOT2 A1050 T1 0 41 50 WH 1 S N A T0245 0202 001608 SOLDER WIRE FLUX LFC7 107 D0 8 99 3Sn 0 0 025 S N A T0245 AA39 20010D LEAD CONNECTOR ASSY 1P 400 YFH800 01 S 1 S A T0296 AA27 30003X COIL LINEARITY HL 1215 29uH DR1215 C 4 5 1 S A T0313 3404 001004 SWITCH TACT 12V 50mA 160gf 8 4x22 7mm SP 1 S A T0510 AA97 17823D ASSY SMD MAIN CS21A730ELKXSV KSBH 1 S N A T0522 0205 001153 GREASE SILICON SC102 JAPA...

Page 45: ... T0023 AA64 04538A KNOB POWER 21Z60 SIEL ABS HB BKN1576 1 S N A T0527 AA65 00011C CLAMPER CORE WIRE ALL MODEL NYLON 66 V2 1 S N A T0527 AA65 30105D CLAMPER CORE WIRE CS21T4MAVX XTL PP CP 1 1 S N A T0091 AA94 16001A ASSY PCB MISC A V CT 21Z45 KOREA NARNIA 1 S A JA330 3722 001061 JACK PHONE 1P 3 6PI AG BLK N 1 S A T0245 AA39 20068B LEAD CONNECTOR ASSY 8P 400 YBNH025 08 6 1 S A T0245 AA39 20069D LEAD...

Page 46: ... Schematic Diagram 7 1 Circuit Description 7 1 1 Overall Block Description KTA1505Y IC801S W6753F A 14V A 6 5V A 12V IC601 Sound AMP IC301 Vertical Drive AMP T444S Fly back Transformer 78R05 R3 VDN VDP LSL OUT LSR OUT SIDE A V Option JACK AV IN ...

Page 47: ...Schematic Diagram 7 2 Samsung Electronics 7 1 2 Power Signal ...

Page 48: ...ronics 7 3 7 1 3 Partial Block Diagram 1 Main Block Description KTA1505Y IC801S W6753F A 14V A 6 5V A 12V IC601 Sound AMP IC301 Vertical Drive AMP T444S Fly back Transformer 78R05 R3 VDN VDP LSL OUT LSR OUT SIDE A V Option JACK AV IN ...

Page 49: ...MEMO 7 4 Samsung Electronics ...

Page 50: ...Schematic Diagram Samsung Electronics 7 5 7 2 Schematic Diagram 7 2 1 Main Board This Document can not be used without Samsung s authorization Power Video Audio ...

Page 51: ...Schematic Diagram 7 6 Samsung Electronics 7 2 2 Sound This Document can not be used without Samsung s authorization Power Video Audio ...

Page 52: ...Schematic Diagram Samsung Electronics 7 7 7 2 3 Power This Document can not be used without Samsung s authorization Power Video Audio ...

Page 53: ...Schematic Diagram 7 8 Samsung Electronics 7 2 4 CRT This Document can not be used without Samsung s authorization Power Video Audio ...

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