LCD-TV Chassis : N88A Model : LA22C450E1 LA26C450E1 LA32C450E1 SERVICE TFT-LCD TV Manual Contents 1. Precautions 2. Product specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram LA22C450E1/LA26C450E1/LA32C450E1 Refer to the service manual in the GSPN (see the rear cover) for the more information.
Contents 1. Precautions............................................................................................................... 1-1 1-1. Safety Precautions.......................................................................................................... 1-1 1-2. Servicing Precautions...................................................................................................... 1-2 1-3. Electrostatically Sensitive Devices (ESD) Precautions................................................
GSPN (Global Service Partner Network) Area Web Site North America http://service.samsungportal.com Latin America http://latin.samsungportal.com CIS http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com Mideast & Africa http://mea.samsungportal.com This Service Manual is a property of Samsung Electronics Co.,Ltd.
3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LCD TV. WARNING: This LCD TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly (LA22C450) Cautions: 1. Disconnect the LCD TV from the power source before disassembly. 2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.
3. Disassembly and Reassembly Description Picture Description Screws 3. Lift up the rear-cover. 4. Remove the left and right speaker. 5. Remove the 4 screws of main board and 4 screws of IP board. 6003-001439 (M4 x L8, TAPTYPE) 6002-001294 (M4 x L16, Tapping) 6. Remove the bracket stand link.
3. Disassembly and Reassembly Description Picture Description Screws 7. Lift up the stand link. 8. Lift up the panel. ※※Reassembly procedures are in the reverse order of disassembly procedures.
3. Disassembly and Reassembly 3-2. Disassembly and Reassembly (LA32C450) Cautions: 1. Disconnect the LCD TV from the power source before disassembly. 2. Follow these directions carefully; never use metal instruments to pry apart the cabinet. Description Picture Description Screws 1. Place the TV face down on cushioned table. Remove 4 screws from the Stand. Remove stand. 6003-001003 2. Remove the 9 screws of rear-cover.
3. Disassembly and Reassembly Description Picture Description Screws 3. Lift up the rear-cover. 4. Remove the left and right speaker. 5. Remove the 5 screws of main board and 4 screws of IP Board.
3. Disassembly and Reassembly Description Picture Description Screws 6. Remove the 2screws of panel and front. Remove the 4 screws of bracket stand link. 6003-000337 6003-000337 ONLY 32"C5X0 6003-001003 7. Lift up the stand link. 8. Lift up the panel. ※※Reassembly procedures are in the reverse order of disassembly procedures. Screw Size Code No. A (mm) B (mm) C (mm) Q’ty 6001-002284 8.3±0.5 8.0±0.6 3.83~3.98 8(26"/32"/37"), 10(40"/46") 6003-000337 7.3~8.3 9.2~10.0 3.73~3.
5. Exploded View & Part List 5. Exploded View & Part List 5-1.
5. Exploded View & Part List 5-2. LA22C450E1 Parts List Location No. Code No. Description & Specification Q’ty SA/SNA CB06A BN96-12734D ASSY BRACKET P-PANEL;LC450 22,SO,T0.
5. Exploded View & Part List 5-2-1. LA22C450E1 Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. 0.1 ..2 F001A ...3 Code No. Description & Specification Q’ty SA/SNA BN90-02426C ASSY COVER FRONT;LC450 22 1 SNA BN96-12731C ASSY COVER P-FRONT;LC450 22,SO,ABS+PMMA, 1 SA BN61-04692A BOSS-PRIMER;#94,clear,35cps 0.001 SNA ...3 BN61-04731A BOSS-TAPE;AMBER,ACRYL,T1.1,W8.0mm,WHITE 0.35 SNA ...
5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty ....4 DS01A 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO 14 SA 0403-001164 DIODE-ZENER;MMSZ5232B,5.32-5.88V,500MW,S 1 SA ....4 ....4 SA/SNA 0403-001783 DIODE-ZENER;BZB84-C6V2,5.8/6.6V,300mW,SO 5 SNA ....4 D0254 0404-001404 DIODE-SCHOTTKY;BAT721C,40V,200mA,SOT-23, 1 SA ....4 T0139 0406-001271 DIODE-TVS;RCLAMP0524P,6/-/-V,150W,SLP251 3 SNA ....
5. Exploded View & Part List Level Description & Specification Q’ty 2007-000159 R-CHIP;56Kohm,5%,1/16W,TP,1005 1 SNA 2007-000162 R-CHIP;100Kohm,5%,1/16W,TP,1005 2 SNA Location No. Code No. ....4 R123 ....4 DR39 SA/SNA ....4 MR16 2007-000168 R-CHIP;470Kohm,5%,1/16W,TP,1005 2 SA ....4 R111 2007-000171 R-CHIP;0ohm,5%,1/16W,TP,1005 13 SNA ....4 HDR17 2007-000172 R-CHIP;10ohm,5%,1/16W,TP,1005 9 SNA ....4 R338 2007-000173 R-CHIP;22ohm,5%,1/16W,TP,1005 18 SNA ....
5. Exploded View & Part List Description & Specification Q’ty 2203-000838 C-CER,CHIP;0.39NF,5%,50V,C0G,TP,1608 1 SNA 2203-000872 C-CER,CHIP;0.0030nF,0.25pF,50V,C0G,1608 2 SNA AD480 2203-001428 C-CER,CHIP;470nF,10%,50V,X7R,TP,2012 3 SNA AD480 2203-002285 C-CER,CHIP;10nF,10%,50V,X7R,1005 15 SNA ....4 AD480 2203-002525 C-CER,CHIP;0.56nF,10%,50V,X7R,TP,1005 10 SNA ....4 AAC1 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,1608 12 SNA ....
5. Exploded View & Part List Level Location No. ..2 P001A ..2 FL06 ..2 CB06A ...3 Description & Specification Q’ty SA/SNA BN44-00370B AC VSS(I)-LIPS;PSIV680510B,EI22HD_ASM,6. 1 SA BN96-12447M ASSY CABLE P-FFC;LA22C450,FFC,1mm PITCH, 1 SA BN96-12734D ASSY BRACKET P-PANEL;LC450 22,SO,T0.8,HD 1 SNA BN61-02428K STUD-PEM;PNA,M4,D8,L24,ZPC(SIL),SUM24L 1 SNA Code No. ...3 AB258 BN61-06144D BRACKET-PANEL;LC450_22inch,SECC,0.8,HDLC 1 SNA ...
5. Exploded View & Part List 5. Exploded View & Part List 5-1.
5. Exploded View & Part List 5-2. LA26C450E1 Parts List Location No. Code No.
5. Exploded View & Part List 5-2-1. LA26C450E1 Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. 0.1 Code No. Description & Specification Q’ty SA/SNA BN90-02427C ASSY COVER FRONT;LC450 26 1 SNA ..2 F001A BN96-12732C ASSY COVER P-FRONT;LC450 26,SO,ABS+PMMA, 1 SA ...3 AB326 BN61-04661A BRACKET-STOPPER;L650,SK-5,T0.4,Plating,H 2 SNA ...3 BN61-04692A BOSS-PRIMER;#94,clear,35cps 0.3 SNA ...3 BN61-04731B BOSS-TAPE;AMBER,ACRYL,T1.1,W12.
5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA ....4 Q409 0505-002560 FET-SILICON;AO6415,P,-20V,-3.3A,0.15ohm, 1 SA ....4 T0596 0904-002554 IC-USC;AU6256-JBF,QFN,28P,5x5mm,12MHz,TP 1 SA ....4 IC106 1001-001573 IC-VIDEO SWITCH;SiI9287BCNUTR,QFN,72P,10 1 SNA 1006-001266 IC-LINE TRANSCEIVER;3232,TSSOP,16P,174MI 1 SA ....4 ....4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8,SOP,8P,5x4mm 2 SA ....
5. Exploded View & Part List Location No. Code No. Description & Specification Q’ty SA/SNA ....4 R124 2007-000775 R-CHIP;33Kohm,5%,1/16W,TP,1005 3 SNA ....4 DR37 2007-000932 R-CHIP;470ohm,5%,1/16W,TP,1005 4 SNA Level ....4 PR12 2007-000979 R-CHIP;5.6Kohm,1%,1/10W,TP,1608 1 SA ....4 AAR20 2007-001002 R-CHIP;510ohm,5%,1/10W,TP,1608 1 SNA ....4 2007-001237 R-CHIP;910ohm,1%,1/10W,TP,1608 1 SNA ....4 2007-001285 R-CHIP;5.6ohm,5%,1/16W,TP,1005 2 SA ....
5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA ....4 AD480 2203-006336 C-CER,CHIP;10000nF,10%,25V,X5R,3216 7 SA ....4 C125 2203-006361 C-CER,CHIP;10000nF,10%,10V,X5R,TP,2012 57 SC ....4 C234 2203-006378 C-CER,CHIP;4700nF,10%,6.3V,X5R,TP,1608 1 SNA ....4 HE4 2203-006474 C-CER,CHIP;22000nF,20%,6.3V,X5R,2012 1 SA ....4 HDC11 2203-006562 C-CER,CHIP;1000nF,10%,10V,X5R,TP,1005 20 SNA ....
5. Exploded View & Part List Description & Specification Q’ty SA/SNA BN39-01267L LEAD CONNECTOR;UC4Q,Flat Connector Ass'y 1 SA 6001-002604 SCREW-MACHINE;BH,+,M4,L10,ZPC(WHT),SWRCH 1 SA Level Location No. Code No. ..2 M2893 ..2 T0081 0.1 BN91-05061A ASSY LCD;BN07-00824A 1 SNA ..2 PANEL BN07-00824A LCD-PANEL;T260XW04 V2,AU26X42,8bit,26,16 1 SA ...
5. Exploded View & Part List 5. Exploded View & Part List 5-1.
5. Exploded View & Part List 5-2. LA32C450E1 Parts List Location No. Code No. Description & Specification Q’ty SA/SNA INVER BN90-02432R ASSY COVER REAR;LC450 32 1 SNA M0014 BN81-04166A A/S-INVERTER LTF320AP08;LTF320AP08 1 SA M0027 BN94-03485D ASSY PCB MAIN;MODEL 1 SA P001A BN96-12870A ASSY STAND P-BASE;LC350 32,ABS+PMMA,HB,B 1 SA PANEL BN44-00338C DC VSS-LCD TV;PI2632HD_ASM,PSLF121401A,A 1 SA R001A BN07-00807A LCD-PANEL;LTF320AP08,SSCYPZ,8bit,32,16.
5. Exploded View & Part List 5-2-1. LA32C450E1 Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. 0.1 Code No. Description & Specification Q’ty SA/SNA BN90-02428C ASSY COVER FRONT;LC450 32 1 SNA ..2 T0003 BN96-12733C ASSY COVER P-FRONT;LC450 32,SO,ABS+PMMA, 1 SA ...3 W391 6003-000275 SCREW-TAPTYPE;BH,+,B,M3,L10,ZPC(BLK),SWR 4 SA ...3 M0081 6003-001003 SCREW-TAPTYPE;BH,+,B,M4,L12,ZPC(BLK),SWR 4 SA ...
5. Exploded View & Part List Level Location No. 0.1 ACCE1 Code No. Description & Specification Q’ty SA/SNA BN92-05759X ASSY ACCESSORY;LA26C450E1LXL 1 SNA BN96-13181X ASSY ACCESSORY-MANUAL;LA26C450E1LXL 1 SNA 6801-001523 CARD-WARRANTY;INDIA,SIEL,ENGLISH,ARTPAPE 1 SNA 6902-000361 BAG PE;LDPE,T0.05,W400,L240,TRP,8,2,8.00 1 SNA AA68-03242M MANUAL FLYER-MANUAL FLYER-06,SAFETY GUID 1 SNA BN68-00968F MANUAL USERS;LA32R81BM/XTL,SIEL,ENGLISH, 1 SNA ...
5. Exploded View & Part List Description & Specification Q’ty SA/SNA 0202-001767 SOLDER-CREAM;LST-5710,D20~38,Sn-57Bi-1Ag 2.221 SNA 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO 21 SA ....4 0403-001164 DIODE-ZENER;MMSZ5232B,5.32-5.88V,500MW,S 1 SA ....4 0403-001783 DIODE-ZENER;BZB84-C6V2,5.8/6.6V,300mW,SO 8 SNA Level Location No. ....4 ....4 DS01A Code No. ....4 D0254 0404-001404 DIODE-SCHOTTKY;BAT721C,40V,200mA,SOT-23, 1 SA ....
5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA ....4 DR39 2007-000162 R-CHIP;100Kohm,5%,1/16W,TP,1005 2 SNA ....4 MR16 2007-000168 R-CHIP;470Kohm,5%,1/16W,TP,1005 2 SA ....4 R111 2007-000171 R-CHIP;0ohm,5%,1/16W,TP,1005 13 SNA ....4 HDR17 2007-000172 R-CHIP;10ohm,5%,1/16W,TP,1005 11 SNA ....4 R338 2007-000173 R-CHIP;22ohm,5%,1/16W,TP,1005 19 SNA ....4 MR9 2007-000455 R-CHIP;18Kohm,1%,1/10W,TP,1608 2 SA ....
5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA ....4 AD480 2203-002525 C-CER,CHIP;0.56nF,10%,50V,X7R,TP,1005 10 SNA ....4 AAC1 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,1608 14 SNA ....4 DC9 2203-005481 C-CER,CHIP;47nF,10%,10V,X7R,TP,1005 1 SA ....4 AD480 2203-005511 C-CER,CHIP;27nF,10%,10V,X7R,TP,1005 1 SA ....4 AD480 2203-005968 C-CER,CHIP;4.7NF,10%,50V,X7R,TP,1005 3 SNA ....
1. Precautions 1. Precautions 1-1. Safety Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. Warnings 1. For continued safety, do not attempt to modify the circuit board. 2. Disconnect the AC power and DC power jack before servicing. 1-1-2. Servicing the LCD TV 1. When servicing the LCD TV, Disconnect the AC line cord from the AC outlet. 2.
1. Precautions 1-2. Servicing Precautions WARNING: Caution: Note: An electrolytic capacitor installed with the wrong polarity might explode. Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions. 1-2-1 General Servicing Precautions 1.
1. Precautions 1-4. Installation Precautions 1. For safety reasons, more than a people are required for carrying the product. 2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. 3. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire. 4. Bend the external antenna cable when connecting it to the product.
1.
2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model LA22C450E1 Feature ሪሪ RF, 1-HDMI, 1-Component/AV, 1-AV, 1-USB2.0, D-SUB, Optical, Audio Out, Headphone ሪሪ Brightness : 500 cd/m2 ሪሪ Response Time : 6.5ms Specifications Item Description LCD Panel 22inch HD 50/60Hz Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.
2. Product specifications Model LA26C450E1 Feature ሪሪ RF, 3-HDMI, 2-Component/AV, 1-USB2.0, D-SUB, Optical, Audio Out, FM Transmitter ሪሪ Brightness : 500 cd/m2 ሪሪ Response Time : 6.5ms Specifications Item Description LCD Panel 26inch HD 50/60Hz Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.7M color Maximum resolution Horizontal : 1366 Pixels Vertical : 768 pixels Input Signal Analog 0.
2. Product specifications Model LA32C450E1 Feature ሪሪ RF, 3-HDMI, 2-Component/AV, 1-USB2.0, D-SUB, Optical, Audio Out, FM Transmitter ሪሪ Brightness : 500cd//m2 ሪሪ Response Time : 6.5 ms Specifications Item Description LCD Panel 32inch HD 50/60Hz Scanning Frequency Horizontal : 60 kHz ~ 73 kHz (Automatic) Vertical : 47 Hz ~ 63 Hz (Automatic) Display Colors 16.7M color Maximum resolution Horizontal : 1366 Pixels Vertical : 768 pixels Input Signal Analog 0.
2. Product specifications 2-2. Specification Comparison to Old Models ※※O : application, X : non-application Model LC4E(LA**C450E1) LB4B(LA**B450B1) Display Type LCD TV LCD TV Built-in Tuner O O Resolution 1366 x 768 1366 x 768 LCD Panel TFT LCD Panel 50/60Hz TFT LCD Panel 50/60Hz Screen Size 22"/26"/32" 26"/32"/37"/40" Picture ratio 16 : 9 16 : 9 Design Dimensions (W x H x D) Weight Brightness 22" 21.0 x 6.8 x 15.8 inches_with stand 26" 25.5 x 8.8 x 17.
2. Product specifications 2-3. Detail Factory Option ※※ If you replace the main board with new one, please change the factory option as well. The options you must change are “Type”.
2. Product specifications CHANNEL FREQUENCY TABLE 1. OUTPUT FREQUENCY : ANALOG fv:45.75MHz, fs:41.25MHz 2. TUNING STEP SIZE : FIRST PLL 250KHz DIGITAL Fc:44MHz SECOND PLL 62.5KHz (Unit : MHz) CH Number C00 C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 2-6 AREA ASIA W/EUROPE 46.25 48.25 55.25 62.25 175.
2. Product specifications (Unit : MHz) CH Number C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C86 C86 C86 C86 C86 C86 AREA ASIA W/EUROPE 791.25 799.25 807.25 815.25 823.25 831.25 839.25 847.25 855.25 69.75 76.25 83.25 90.25 97.25 59.25 49.75 77.25 85.25 183.25 191.25 199.25 207.25 215.25 223.25 BAND CIS E/EUROPE UHF UHF UHF UHF UHF UHF UHF UHF UHF V-L V-L V-L VHF VHF V-L VHF V-L V-L V-H V-H V-H V-H VHF VHF 791.25 799.25 807.25 815.25 823.
2. Product specifications (Unit : MHz) 2-8 AREA CH Number AUSTRALIA BAND CHINA BAND AMERICA BAND C00 C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 46.25 57.25 64.25 86.25 95.25 102.25 175.25 182.25 189.25 196.25 209.25 216.25 224.25 138.25 203.25 x x x x x x x 527.25 534.25 541.25 548.25 555.25 562.25 569.25 576.25 583.25 590.25 597.25 604.
2. Product specifications (Unit : MHz) AREA CH Number AUSTRALIA BAND CHINA BAND AMERICA BAND C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C86 C86 C86 C86 C86 C86 695.25 702.25 709.25 716.25 723.25 730.25 737.25 744.25 751.25 758.25 765.25 772.25 779.25 786.25 793.25 800.25 807.25 814.25 53.75 62.25 82.25 183.25 192.25 201.25 49.75 59.25 77.25 85.25 93.25 191.25 199.25 207.25 215.25 223.
2. Product specifications Cable CHANNEL CH Number S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 2-10 (Unit : MHz) AREA ASIA W/EUROPE 105.25 112.25 119.25 126.25 133.25 140.25 147.25 154.25 161.25 168.25 231.25 238.25 245.25 252.25 259.25 266.25 273.25 280.25 287.25 294.25 303.25 311.25 319.25 327.25 335.25 343.25 351.25 359.25 367.25 375.25 383.25 391.25 399.25 407.25 415.25 423.25 431.
2. Product specifications (Unit : MHz) CH Number S01 S02 S03 S04 S05 S06 S07 S08 S09 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 S53 S54 S55 S56 S57 S58 S59 S60 S61 S62 S63 S64 S65 AREA AUSTRALIA BAND CHINA BAND AMERICA BAND 105.25 112.25 119.25 126.25 133.25 140.25 147.25 154.25 161.25 168.25 231.25 238.25 245.25 252.25 259.25 266.25 273.25 280.25 287.25 294.25 303.25 311.
2. Product specifications (Unit : MHz) CH Number AREA AUSTRALIA BAND S66 S67 S68 S69 S70 S71 S72 S73 S74 S75 S76 S77 S78 S79 S80 S81 S82 S83 S84 S85 S86 S87 S88 S99 S90 S91 S92 S93 S94 S95 S96 S97 S98 S99 CATV CH mark (A row) : China area : attach ‘Z’ besides area : attach ‘S’ For example) China : Z10 besides area : S10 2-12 CHINA BAND AMERICA BAND 475.25 481.25 487.25 493.25 499.25 505.25 511.25 517.25 523.25 529.25 535.25 541.25 547.25 553.25 559.25 565.25 571.25 577.25 583.25 589.25 595.
2. Product specifications 2-4. Accessories Product Description Remote Control & Batteries (AAA x 2) Power Cord Stand Screw (for the stand - M4, L6) Owner’s Instructions Code.
4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting 4-1-1. Previous check 1. Check the various cable connections first. • Check to see if there is a burnt or damaged cable. • Check to see if there is a disconnected or loose cable connection. • Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board.
4. Troubleshooting 4-1-1. No Power (SX1) Symptom Major checkpoints -- The LEDs on the front panel do not work when connecting the power cord. -- The SMPS relay does not work when connecting the power cord. -- The units appears to be dead. The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning.
4. Troubleshooting 4-1-2. No Video (Analog PC signal) (SX1) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the PC source. -- Check the IC1102(SX1). -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off. Lamp on, no video. Yes Check a PC source and check the connection of DSUB cable? No Input a analog PC signal and connected cable(DPMS).
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4. Troubleshooting 4-1-3. No Video (HDMI - Digital Signal) (SX1) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the HDMI source. -- Check the IC1102(SX1) , Check the HDMI switch -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off. Lamp on, no video. Yes Check the connection of HDMI cable? No Input a HDMI cable. No Check HDMI cable. Check a IC1201 HDMI SWITCH IC.
4.
4. Troubleshooting 4-1-4. No Video (Tuner_CVBS) (SX1) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the Tuner CVBS source -- Check the M-star -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off. Lamp on, no picure. No Connect the RF cable and check RF signal. No Check a B+ voltage (IC801 DRXK IC) 3.3V,1.25V. Change a main PCB ass’y. No Change a main PCB ass’y.
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4. Troubleshooting 4-1-5. No Picture (Video_CVBS) (SX1) Symptom Major checkpoints Diagnostics -- Audio is normal but no picture is displayed on the screen. -- Check the Video Source -- Check the M-star -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off. Lamp on, no picture. No Check a A/V cable and video signal. Yes Does the signal appear at C507, C509 of IC1102? No Check a connection harness.
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4. Troubleshooting 4-1-6. No Sound (SX1) Symptom Major checkpoints -- Video is normal but there is no sound.. -- When the speaker connectors are disconnected or damaged. -- When the sound processing part of the Main Board is not functioning. -- Speaker defect. Picture is display, no sound. No Connect a sound cable. control a volume. No Check a connection harness and headphone jack./Side AV. Check Sound Processor IC1102(SX1). No Change a DRXK IC IC801. Change a main PCB ass’y.
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4. Troubleshooting 4-1-1. No Power (X4) Symptom Major checkpoints -- The LEDs on the front panel do not work when connecting the power cord. -- The SMPS relay does not work when connecting the power cord. -- The units appears to be dead. The IP relay or the LEDs on the front panel does not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is not functioning. In this case, check the following: -- Check the internal cable connection status inside the unit.
4. Troubleshooting Does proper DC B13V appear at LVDS connector Pin #1~5 of T-con b’d? No Change the LVDS cable. No Change the T-con b’d. Yes Does proper DC B13V appear at F1 of T-con b’d? Yes A power is supplied to set ? No Diagnostics Caution 4-14 Make sure to disconnect the power before working on the IP board. Check a other function. (No picture part) Replace a LCD Panel.
4. Troubleshooting 4-1-2. No Video_Analog PC signal (X4) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the PC source -- Check the Arsenal, Check the Chelsea. -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off. Lamp(Backlight) on, no video ? No Check a set in the 'Stand-by mode'. or 'DPMS mode'.
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4. Troubleshooting 4-1-3. No video_HDMI1, 2, 3, 4 - Digital signal (X4) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the HDMI source. -- Check the HDMI switch, Check the Chelsea. -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off. Lamp(Backlight) on, no video ? No Check a set in the 'Stand-by mode'.
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4. Troubleshooting 4-1-4. No Video_Tuner - CVBS (X4) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the Tuner CVBS source. -- Check the Tuner, Check the Chelsea. -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off. Lamp(Backlight) on, no video ? No Check a set in the 'Stand-by mode' Yes Check the RF source and check the connection of RF cable ? No Input the RF source properly.
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4. Troubleshooting 4-1-5. No Video_Video CVBS (X4) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the Video CVBS source -- Check the Chelsea. -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off. Lamp(Backlight) on, no video ? No Check a set in the 'Stand-by mode' Yes Check the video source and check the connection of video cable? No Input the video source properly.
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4. Troubleshooting 4-1-6. No Video_Component (X4) Symptom Major checkpoints -- Audio is normal but no picture is displayed on the screen. -- Check the Component source -- Check the chelsea. -- This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off. Lamp(Backlight) on, no video ? No Check a set in the 'Stand-by mode'.
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4. Troubleshooting 4-1-7. No Sound (X4) Symptom Major checkpoints -- Video is normal but there is no sound.. -- When the speaker connectors are disconnected or damaged. -- When the sound processing part of the Main Board is not functioning. -- Speaker defect.. Check the source and check the connection of sound cable (Comp/PC/DVI to HDMI) ? No Input the video source properly. No Check CN1101, CN1107_N22 (CN1107_22), CN1203. Change the Main Assy. No Check IC3002 (X4). Change the Main Assy.
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4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment Instuction 1. Usually, a color LCD-TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. 2. Use the specified test equipment or its equivalent. 3. Correct impedance matching is essential. 4. Avoid overload. Excessive signal from a sweep generator might overload the front-end of the TV.
4. Troubleshooting 4-3. Factory Mode Adjustments 4-3-1 Entering Factory Mode To enter ‘Service Mode’ Press the remote -control keys in this sequence : - If you do not have Factory remote - control Info Menu Mute POWER ON 4-3-2 How to Access Service Mode Using the Customer Remote 1. Turn the power off and set to stand-by mode 2. Press the remote buttons in this order to turn the set on. 3. The set turns on and enters service mode. This may take approximately 20 seconds. 4.
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4. Troubleshooting Control Control Factory Name EDID Sub Option PDP Option Hotel Option Shop Option Asia Option Sound Config Option SCC EDID 4-30 Factory Name Data EDID ON/OFF Off EDID WRITE ALL … EDID WRITE PC … EDID WRITE HDMI … EDID WRITE HDMI1 … EDID WRITE HDMI2 … EDID WRITE HDMI3 … EDID WRITE HDMI4 … EDID 1.
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4. Troubleshooting Expert Expert Factory Name Data Range N / D ADJ Off Off / On / FIX SOURCE ...
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4. Troubleshooting 4-3-5.
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4. Troubleshooting Hier Modulation fixed Frequency Offset fixed Timing Offset fixed AGC fixed UCB fixed PLL Type fixed DEMOD Type fixed TPS LOCK fixed RS Lock fixed SSI fixed SQI fixed ISDB-T Factory Name 4-44 SUB MENU Data Range FFT Size_1 fixed Guard Interval_1 fixed Freq.
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4. Troubleshooting 4-4. White Balance - Calibration 4-4-1 White Balance -Calibration 1. Calibration AV Calibration Comp Calibration PC Calibration HDMI Calibration 4-4-2 White Balance - Adjustment 3. W/B (low light) (hight light) Sub Bright R offset G offset B offset Sub Contrast R gain G gain B gain (W/B adjustment Condition refer next page) 4-5. White Ratio (Balance) Adjustment 1. You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance). 2.
4. Troubleshooting 4-6. Servicing Information 4-6-1 USB Download Method Software Upgrade upgrades can be performed via broadcasting signal or by downloading the new firmware from samsung.com to a USB memory device. Current Version is the software already installed in the TV. Note Software is represented as ‘Year/Month/Day_Version’. Installing the latest version is recommended. ሪሪ By USB: Insert a USB drive containing the firmware upgrade file downloaded from samsung.com into the TV.
6. Wiring Diagram 6. Wiring Diagram 6-1.
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6. Wiring Diagram 6-2.
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6. Wiring Diagram 6-3. Connector Functions Connector Functions Main CN201 IP CN802 Supply main power and dimming signal from IP board to Main Board. Main CN1302/ZCN1303_HD T-CON CNF1 The LVDS signal transfered from Main Board to Panel . IP CN803 Panel CN1 (14 Pin) Supply power from IP board to Driver Board. IP CNI802 Panel CN1 (2 Pin) Supply power from IP board to Driver Board. IP CNI801 Panel CN3 (7 Pin) Supply power from IP board to Driver Board. 6-4.