Samsung LA32C550J1R Service Manual
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Samsung LA32C550J1R Service Manual

Chassis: n94a
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SERVICE
TFT-LCD TV
LA32C550J1R/LA37C550J1R/
LA40C550J1R LA46C550J1R
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-TV
Chassis
: N94A
Model
: LA32C550J1R
LA37C550J1R
LA40C550J1R
LA46C550J1R
Manual
1. Precautions
2. Product specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. Exploded View & Part List
6. Wiring Diagram
Contents

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Summary of Contents for Samsung LA32C550J1R

  • Page 1 LCD-TV Chassis : N94A Model : LA32C550J1R LA37C550J1R LA40C550J1R LA46C550J1R SERVICE Manual TFT-LCD TV Contents 1. Precautions 2. Product specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram LA32C550J1R/LA37C550J1R/ LA40C550J1R LA46C550J1R Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    Contents 1. Precautions ......................1-1 1-1. Safety Precautions ......................1-1 1-2. Servicing Precautions ..................... 1-2 1-3. Electrostatically Sensitive Devices (ESD) Precautions ..........1-2 1-4. Installation Precautions ....................1-3 2. Product specifications .................... 2-1 2-1. Feature & Specifications ....................2-1 2-2. Detail Factory Option ...................... 2-5 2-3.
  • Page 3 Mideast & Africa http://mea.samsungportal.com © 2010 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law.

  • Page 4: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model LA32C550J1R Feature RF, 2_HDMI4(1-HDMI/DVI), 2-Component, 2-AV, D-Sub, LNA, 2USB ሪ Brightness : 500cd/m ሪ High Contrast Ratio : 60,000:1 ሪ Response Time : 6.5ms ሪ PIP(in HDMI 1, 2, 3,4, Component 1,2 PC Mode and Sub picture is available only in TV analog mode) ሪ...
  • Page 5 2. Product specifications Model LA37C550J1R Feature RF, 2_HDMI4(1-HDMI/DVI), 2-Component, 2-AV, D-Sub, LNA, 2USB ሪ Brightness : 500cd/m ሪ High Contrast Ratio : 60,000:1 ሪ Response Time : 6.5ms ሪ PIP(in HDMI 1, 2, 3,4, Component 1,2 PC Mode and Sub picture is available only in TV analog mode) ሪ...
  • Page 6 2. Product specifications Model LA40C550J1R Feature RF, 2_HDMI4(1-HDMI/DVI), 2-Component, 2-AV, D-Sub, LNA, 2USB ሪ Brightness : 500cd/m ሪ High Contrast Ratio : 60,000:1 ሪ Response Time : 6.5ms ሪ PIP(in HDMI 1, 2, 3,4, Component 1,2 PC Mode and Sub picture is available only in TV analog mode) ሪ...
  • Page 7 2. Product specifications Model LA46C550J1R Feature RF, 2_HDMI4(1-HDMI/DVI), 2-Component, 2-AV, D-Sub, LNA, 2USB ሪ Brightness : 500cd/m2 ሪ High Contrast Ratio : 60,000:1 ሪ Response Time : 6.5ms ሪ PIP(in HDMI 1, 2, 3,4, Component 1,2 PC Mode and Sub picture is available only in TV analog mode) ሪ...

  • Page 8: Detail Factory Option

    2. Product specifications 2-2. 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”.  LC550 Model Name LA32C550J1R*** LA37C550J1R*** LA40C550J1R*** LA46C550J1R*** Vendor AMLCD Code...

  • Page 9: Specification Comparison To Old Models

    2. Product specifications 2-3. Specification Comparison to Old Models Model C550(32/37/40/46) B550(32/40/46/52) Design Display Type LCD TV LCD TV Built-in Tuner Resolution 1920 X 1080 1920 X 1080 LCD Panel TFT LCD Panel 60Hz TFT LCD Panel 60Hz Screen Size 32"/37"/40"46"...
  • Page 10 2. Product specifications CHANNEL FREQUENCY TABLE „ OUTPUT FREQUENCY : ANALOG fv:45.75MHz, fs:41.25MHz DIGITAL Fc:44MHz TUNING STEP SIZE : FIRST PLL 250KHz SECOND PLL 62.5KHz (Unit : MHz) AREA ASIA HONG SOUTH Number BAND BAND BAND BAND BAND W/EUROPE E/EUROPE KONG U/K INDONESIA AFRICA...
  • Page 11 2. Product specifications (Unit : MHz) AREA ASIA HONG SOUTH Number BAND BAND BAND BAND BAND W/EUROPE E/EUROPE KONG U/K INDONESIA AFRICA 791.25 791.25 791.25 791.25 791.25 799.25 799.25 799.25 799.25 799.25 807.25 807.25 807.25 807.25 807.25 815.25 815.25 815.25 815.25 815.25 823.25...
  • Page 12 2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 46.25 57.25 49.75 64.25 57.75 55.25 86.25 65.75 61.25 95.25 77.25 67.25 102.25 85.25 77.25 175.25 168.25 83.25 182.25 176.25 175.25 189.25 184.25 181.25 196.25 192.25 187.25 209.25 200.25...
  • Page 13 2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 695.25 823.25 699.25 702.25 831.25 705.25 709.25 839.25 711.25 716.25 847.25 717.25 723.25 855.25 723.25 730.25 863.25 729.25 737.25 735.25 744.25 741.25 751.25 747.25 758.25 753.25 765.25 759.25 772.25...
  • Page 14 2. Product specifications Cable CHANNEL (Unit : MHz) AREA ASIA HONG SOUTH Number BAND BAND BAND BAND BAND W/EUROPE E/EUROPE KONG U/K INDONESIA AFRICA 105.25 103.25 103.25 105.25 105.25 112.25 111.25 111.25 112.25 112.25 119.25 119.25 119.25 119.25 119.25 126.25 127.25 127.25 126.25...
  • Page 15 2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 105.25 112.25 73.25 112.25 120.25 55.25 119.25 128.25 61.25 126.25 136.25 67.25 133.25 144.25 77.25 140.25 152.25 83.25 147.25 160.25 175.25 154.25 224.25 181.25 161.25 232.25 187.25 168.25 240.25...
  • Page 16 2. Product specifications (Unit : MHz) AREA Number AUSTRALIA BAND CHINA BAND AMERICA BAND 475.25 481.25 487.25 493.25 499.25 505.25 511.25 517.25 523.25 529.25 535.25 541.25 547.25 553.25 559.25 565.25 571.25 577.25 583.25 589.25 595.25 601.25 607.25 613.25 619.25 625.25 631.25 637.25 643.25...

  • Page 17: Accessories

    Remote Control & Batteries BN59-01019A (AAA x 2) BN59-01016A (China) Cleaning Cloth BN63-01798B Owner’s Instructions BN68-02739A ~ L Samsung Electronics Service center Power Cord 3903-000343 Warranty Card / Registration BN68-00774D Card / Safety Guide Manual AA68-03242M (Not available in all locations) BN90-02442B (32")

  • Page 18: Disassembly And Reassembly

    3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LA37C550J1R LCD TV. WARNING: This LCD TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly Cautions: 1.
  • Page 19 3. Disassembly and Reassembly Description Picture Description Screws 3. Remove the left and right speaker. 4. Remove Screw from the stand BRKT and lift up the stand BRKT. O x 3 O x 2 5. Remove 3 screws from the Panel. O x 3 6.
  • Page 20 3. Disassembly and Reassembly Description Picture Description Screws 7. Remove screws and Lift up the Lod panel. 8. Remove the screws on Panel. Reassembly procedures are in the reverse order of disassembly procedures. ※...

  • Page 21: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1. Troubleshooting 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. Check the power input to the Main Board.
  • Page 22 4. Troubleshooting 4-1-1. No Power 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. Symptom 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.
  • Page 23 Does the digital data appear at the IC11021. output of LVDS Cable? Change a main PCB ass’y. Check a LVDS cable? Replace a lcd panel? Please, Call to Samsung Co. LTD. Caution Make sure to disconnect the power before working on the IP board.
  • Page 24 4. Troubleshooting WAVEFORMS PC input (V-sink , H-sink , R/G/B ) LVDS output...
  • Page 25 4. Troubleshooting 4-1-3. No Video (HDMI - Digital Signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the IC1102(SX1) , Check the HDMI switch checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off.
  • Page 26 4. Troubleshooting WAVEFORMS HDMI input (RX_Data, RX_Clk) LVDS output...
  • Page 27 Does the Signal appear at Change a main PCB ass’y. R505 of IC1102? Check the LVDS cable? Replace the LCD panel? Please, Call to Samsung Co. LTD. Caution Make sure to disconnect the power before working on the IP board.
  • Page 28 4. Troubleshooting WAVEFORMS CVBS OUT (Grey Bar) LVDS output...
  • Page 29 Diagnostics Does the signal appear at Check a connection harness. C507, C509 of IC1102? Check a LVDS cable ? Replcelcd panel? Please, Call to Samsung Co. LTD. Caution Make sure to disconnect the power before working on the IP board.
  • Page 30 4. Troubleshooting WAVEFORMS LVDS output 4-10...
  • Page 31 4. Troubleshooting 4-1-6. No Sound Symptom Video is normal but there is no sound.. When the speaker connectors are disconnected or damaged. Major When the sound processing part of the Main Board is not functioning. checkpoints Speaker defect. Connect a sound cable. Picture is display, no sound.
  • Page 32 4. Troubleshooting WAVEFORMS I2S Data Speaker out 4-12...

  • Page 33: Alignments And Adjustments

    4. Troubleshooting 4-2. Alignments and Adjustments 4-2-1. General Alignment Instuction Usually, a color LCD-TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync. Use the specified test equipment or its equivalent. Correct impedance matching is essential.

  • Page 34: Factory Mode Adjustments

    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 - If you have Factory remote - control PICTURE ON DISPLAY FACTORY...
  • Page 35 Model LC530 UC6530/UC6540/UC6550/UC6600/UC6620/UC6630/ Select Model UC6700/UC6720/UC6730/UC6740/UC6800/UC6830/ UC6900/UC6900H/UC8000/ PC420/PC430/PC431/PC432/PC450/PC451/PC480/ PC520/PC530/PC531/PC540/PC541/PC550/PC551/ PC560/PC580/PC590/PC670/PC6100/PC6400/PC6500/ PC7000/PC7700/PC8000 EU : DRXKSEMCO DRXKSEMCO/S2Semco/T2CXD/DRXKSEM_E/ AU : TUNER DRXKSEMCO DRXKALPS/DRXKSEN_2/DRXKXG DRXKALPS satellite : S2Semco SAMSUNG / SAMSUNG SAMSUNG Etron NONE/W-MILKY/T-M-Brn/T-W-Brn/T-W-Gray/W-D- Select Design Front Color Gray/W-M-Whit/W-Violet/T-C-Gray/T-R-BLK/S-BLK/S- for Illuminance RBLK/S-C-Gray/ Sensor 4-15...
  • Page 36 4. Troubleshooting Control „ Factory Name Data Range Control EDID Sub Option Shop Option Sound Factory Name Data EDID EDID ON/OFF EDID WRITE ALL … EDID WRITE PC … EDID WRITE … HDMI EDID WRITE … Download EDID data to EEPROM. HDMI1 1.
  • Page 37 4. Troubleshooting Factory Name Data Range Hotel Option Hotel Mode SI Vender … Power On … Channel Channel Type … Power On Volume … Min Volume … Max Volume … Panel Button Lock … Power On Source … Factory Name Data Range Shop Option...
  • Page 38 4. Troubleshooting „ Factory Name Data Range Test Pattern Panel Auto Setting Panel Display fixed Time Logic Usb D/L Tuner Status Factory Name Data Range Test Pattern Test for Input of Scaler. OFF/ White/Grey/Black Pattern Sel If you can see pattern well, there is Red/Green/Blue problem at input of Scaler.
  • Page 39 4. Troubleshooting ISDB-T FFT Size_1 Not modified Guard Interval_1 Not modified Freq. Offset_1 Not modified SNR_1 Not modified IF AGC_1 Not modified TMCC Lock_1 Not modified TS Packet_1 Not modified Master Lock_1 Not modified A_Modulation_1 Not modified A_Code Rate_1 Not modified A_Timer Not modified InterLeave_1...
  • Page 40 4. Troubleshooting ADC/WB „ Factory Name Data Range ADC/WB ADC Target ADC RESULT Factory Name Data Range AV Calibration Success Success / Failure Comp Calibration Success Success / Failure PC Calibration Success Success / Failure HDMI Calibration Success Success / Failure Factory Name Data Range...
  • Page 41 4. Troubleshooting 1st_PC_B_Offset 0 ~ 255 2nd_R_Offset 0 ~ 255 2nd_G_Offset 0 ~ 255 2nd_B_Offset 0 ~ 255 2nd_R_Gain 0 ~ 255 2nd_G_Gain 0 ~ 255 2nd_B_Gain 0 ~ 255 Factory Name Data Range Sub Brightness 0 ~ 255 R_Offset 0 ~ 255 G_Offset 0 ~ 255...

  • Page 42: White Balance -Calibration

    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 Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance. Color Calibration „...
  • Page 43 4. Troubleshooting Method of Color Calibration (AV) „ 1) Apply the NTSC Lattice (N0. 3) pattern signal to the AV IN 1 port 2) Press the Source key to switch to “AV1” mode 3) Enter Service mode 4) Select the “Calibration” menu 5) Select the “AV Calibration”...

  • Page 44: Servicing Information

    4-5. Servicing Information 4-5-1 USB Download Method Samsung may offer upgrades for TV’s firmware in the future. Please contact the Samsung call center at 1-800- SAMSUNG (726-7864) to receive information about downloading upgrades and using a USB drive. Upgrades will be possible by connecting a USB drive to the USB port located on your TV.

  • Page 45: Exploded View & Part List

    5. Exploded View & Part List 5. Exploded View & Part List 5-1. LA32C550J1R Exploded View R001A T0101 T0101 INVER T0101 T0101 M0115 T0175 PANEL M0014 T0175 F001A T0920 TCON M0027...
  • Page 46 5. Exploded View & Part List 5-2. LA32C550J1R Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark F001A BN96-12806L ASSY COVER P-FRONT;32,LC550,SO,PMMA+PMMA PANEL BN07-00808A LCD-PANEL;LTF320HM01,SSCZMS,8bit,31.5,16 TCON BN81-04151A A/S-T CON LTF320HM01;LTF320HM01 INVER BN81-04167A A/S-INVERTER LTF320HM01;LTF320HM01 M0014 BN94-03456J ASSY PCB MAIN;NEW MODEL BN61-05990B HOLDER-SIDE AV;40,LC650,ABS+PMMA,BK0007,...
  • Page 47 5. Exploded View & Part List 5-2-1. LA32C550J1R Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LA32C550J1RXXM S001A BN90-02442B ASSY STAND;32,LC650,W/W,2COAT,ROSE BLACK SG03A BN96-12758B ASSY STAND P-GUIDE;32,LC650,W/W,PC+G/F,2 ...3...
  • Page 48 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 T0101 BN61-05996A BRACKET-WALL;LC650 40,SECC,T1.2 ...3 BN60-00188B SPACER-FOAM;LCD,FELT,20,3.0,20,Center : T0910 BN96-13341A ASSY BRACKET P-STAND LINK;LC530 32,SECC, ...3 BN61-02429K STUD-PEM;PNB,M3.8,D7,L14.9,ZPC(SIL),SUM2 ...3 M0115 BN61-06024A BRACKET-STAND LINK;LC550 32",SECC,T1.2 ...3 BN61-05281A HOLDER-CLAMP;LCD,NYLON 66,WHT...
  • Page 49 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..5 6042-000001 EYELET;ID2.2,OD2.7,L3.1,NI+SN,BSP3-1/2H ..5 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H ..5 M0125 BH39-40362W CBF-HARNESS;0.6PHI,ROLL-TYPE 596.4 ..5 BN97-04149A ASSY SMD-POWER;BN94-03213A ..6 0401-001099 DIODE-SWITCHING;1N4148WS,75V,150mA,SOD-3 ..6 DR01A 0402-001942 DIODE-RECTIFIER;STTH3L06S,600V,3A,SMC,TP ..6 0403-001454 DIODE-ZENER;MMSZ5245B,14.25/15.75V,500mW ..6...
  • Page 50 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..6 V1233 2203-000575 C-CER,CHIP;220nF,10%,25V,X7R,TP,2012 ..6 AD480 2203-000938 C-CER,CHIP;0.47nF,5%,50V,C0G,2012 ..6 6MC22 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..6 AD480 2203-000979 C-CER,CHIP;47nF,10%,50V,X7R,TP,2012 ..6 C371 2203-001071 C-CER,CHIP;0.056nF,5%,50V,C0G,TP,1608 ..6 2203-001132 C-CER,CHIP;0.68nF,5%,50V,NP0,2012 ..6 AD480 2203-002494...
  • Page 51 BAG PE;HDPE,T0.03,W240,L400,TRP,8,2,-,5..3 AA68-03242M MANUAL FLYER-MANUAL FLYER-06,SAFETY GUID ...3 BH68-00527B MANUAL FLYER-00,WARRANTY CARD;COMM,Samsu ...3 T0527 BH68-20009B LABEL-ACCESSORY;ART-PAPER 100G,15,100,SD ...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,11 L ...3 BN68-02739A MANUAL USERS-IB;Comm,Samsung,English,Asi BN92-05757G ASSY LABEL;LA32C550J1RSSK BN68-02550A LABEL-LCD-POP;L550(52/46/40/37/32),Asia, T0527 BP68-00052B LABEL-00,RATING;CCTV,TETRON PAPER,T0.05, AA68-03752D LABEL-STICKER;WW,ALL,Art Paper(90g),44.5 BN92-05854A ASSY P/MATERIAL;32,LC650...
  • Page 52 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 3711-007302 HEADER-BOARD TO BOARD;BOX,18P,2R,2mm,ANG ...3 3722-003037 JACK-USB;4P/1C W/L,AU/NI,BLK,ANGLE,A ...3 JA330 3722-003038 JACK-PHONE;7P/1C W/L,SN,BLK ...3 JA333 3722-003040 JACK-PIN;3P W/L,SN,BLK/YEL/WHT/RED,ANGLE ...3 JA333 3722-003052 JACK-PIN;5P+Shield W/L,NI/SN,GN/BL/RD/WH ...3 3722-003058 JACK-MODULAR;8P/8C W/L,Y,STRAIGHT,N,AU,1...
  • Page 53 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 AR49 2007-000140 R-CHIP;1Kohm,5%,1/16W,TP,1005 ..4 MR306 2007-000141 R-CHIP;2.2Kohm,5%,1/16W,TP,1005 ..4 R319 2007-000143 R-CHIP;4.7Kohm,5%,1/16W,TP,1005 ..4 2007-000146 R-CHIP;6.8Kohm,5%,1/16W,TP,1005 ..4 R104 2007-000148 R-CHIP;10Kohm,5%,1/16W,TP,1005 ..4 R102 2007-000149 R-CHIP;12Kohm,5%,1/16W,TP,1005 ..4 MR36 2007-000153...
  • Page 54 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 KFC6 2203-000872 C-CER,CHIP;0.0030nF,0.25pF,50V,C0G,1608 ..4 AD480 2203-001428 C-CER,CHIP;470nF,10%,50V,X7R,TP,2012 ..4 AD480 2203-002285 C-CER,CHIP;10nF,10%,50V,X7R,1005 ..4 AD480 2203-002525 C-CER,CHIP;0.56nF,10%,50V,X7R,TP,1005 ..4 AAC1 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,1608 ..4 AD480 2203-005511 C-CER,CHIP;27nF,10%,10V,X7R,TP,1005 ..4 AD480...
  • Page 55 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 T0052 2703-002268 INDUCTOR-SMD;8.2nH,5%,1005 ..4 AD480 2203-006824 C-CER,CHIP;4700nF,10%,10V,X5R,1608 ..4 AD480 2203-006841 C-CER,CHIP;1000nF,10%,16V,X5R,1005 ..4 L1103 2703-000403 INDUCTOR-SMD;22uH,10%,3225 ..4 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 JC31 2203-000715 C-CER,CHIP;3.3nF,10%,50V,X7R,1608 ..4 2203-005481 C-CER,CHIP;47nF,10%,10V,X7R,TP,1005...
  • Page 56 5. Exploded View & Part List 5. Exploded View & Part List 5-1. LA46C550J1R Exploded View R001A T0101 T0101 INVER T0101 T0101 T0175 T0175 M0115 M0174 PANEL M0014 T-CON F001A T0920 M0027...
  • Page 57 5. Exploded View & Part List 5-2. LA46C550J1R Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark F001A BN96-12809L ASSY COVER P-FRONT;46,LC550,SO,PMMA+PMMA PANEL BN07-00822A LCD-PANEL;V460H1-L08,CM46H18,8bits,46,16 INVER BN81-04449A A/S-BB-L;V460H1-L08 TCON BN81-04461A A/S-T CON V460H1-L08;V460H1-L08 M0174 BN44-00341A IP BOARD-TV;PSIV281510A,I46F1_ASM,14mA,1 M0014 BN94-03473P ASSY PCB MAIN;NEW MODEL...
  • Page 58 5. Exploded View & Part List 5-2-1. LA46C550J1R Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LA46C550J1RXXM S001A BN90-02444B ASSY STAND;46,LC650,W/W,2COAT,ROSE BLACK M0027 BN96-12763A ASSY STAND P-BASE;46,EXPORT,TEMPERED GLA ...3 M0081 6003-001003...
  • Page 59 BAG PE;HDPE,T0.03,W240,L400,TRP,8,2,-,5..3 AA68-03242M MANUAL FLYER-MANUAL FLYER-06,SAFETY GUID ...3 BH68-00527B MANUAL FLYER-00,WARRANTY CARD;COMM,Samsu ...3 T0527 BH68-20009B LABEL-ACCESSORY;ART-PAPER 100G,15,100,SD ...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,11 L ...3 BN68-02739A MANUAL USERS-IB;Comm,Samsung,English,Asi ACCE2 BN96-13648T ASSY ACCESSORY-CABLE;NEW MODEL ...3 T0268 3903-000461 CBF-POWER CORD;DT,GB,GP3/Y(A),IEC320 C13 ...3 T0120 4301-000121 BATTERY-MN;1.5V,R03,10.5x44.5m,HOLDER,7.
  • Page 60 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark BN90-02475L ASSY COVER FRONT;46,LC550,SO F001A BN96-12809L ASSY COVER P-FRONT;46,LC550,SO,PMMA+PMMA ...3 BN60-00163D SPACER-FOAM;LC650-46",FOAM,590,0.5,25,Bo ...3 BN60-00163J SPACER-FOAM;LC650-46",FOAM,1024,T 0.5,20 ...3 CCM1 BN63-02183H COVER-SHEET;Rhcm,PE Vinyl,T0.04,1300mm,2 0.84 ...3 CCM1 BN63-05199B COVER-SHEET;AMBER,PE,T0.08,W65mm,200M,CL...
  • Page 61 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 T0087 1203-002835 IC-POSI.FIXED REG.;KIA7805AF,DPAK,3P,6.6 ..4 T0087 1203-002898 IC-POSI.FIXED REG.;G950T45R,T0-252,3P,6..4 1203-004364 IC-VOL. DETECTOR;RT9818C-42PV,SOT-23,3P, ..4 T0087 1203-005134 IC-POSI.FIXED REG.;RT9167A-33PB,SOT-23-5 ..4 1203-005559 IC-BACKLIGHT DRIVER;MP3302DJ,TSOT23,5P,2 ..4 1203-006013 IC-DC/DC CONVERTER;AOZ1031AI,SO-8,8P,4.9...
  • Page 62 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 2007-007312 R-CHIP;20Kohm,1%,1/16W,TP,1005 ..4 2007-007318 R-CHIP;1Kohm,1%,1/16W,TP,1005 ..4 2007-007671 R-CHIP;11Kohm,1%,1/16W,TP,1005 ..4 MR11 2007-008015 R-CHIP;75ohm,1%,1/16W,TP,1005 ..4 2007-008134 R-CHIP;12.4Kohm,1%,1/16W,TP,1005 ..4 2007-008298 R-CHIP;49.9ohm,1%,1/16W,TP,1005 ..4 DRP29 2011-001396 R-NETWORK;4.7Kohm,5%,1/16W,L,CHIP,8P,TP, ..4 2011-001427 R-NETWORK;0ohm,5%,1/16W,L,CHIP,8P,TP,2.0...
  • Page 63 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 AC510 3708-002797 CONNECTOR-FPC/FFC/PIC;51P,0.50mm,SMD,AU, ..4 CON_US 3711-005616 HEADER-BOARD TO CABLE;BOX,10P,1R,2mm,SMD ..4 HB01A 3711-007336 HEADER-BOARD TO CABLE;B0X,4P,1R,2.5mm,SM ..4 T0077 BN41-01377A PCB MAIN;Trident SX1,FR-4,4,1.0,1.2,192x ..4 T0527 BN68-01075A LABEL;9mm,15mm,WHITE...
  • Page 64 5. Exploded View & Part List 5. Exploded View & Part List 5-1. LA32C550J1R Exploded View R001A T0101 T0101 INVER T0101 T0101 M0115 T0175 PANEL M0014 T0175 F001A T0920 TCON M0027...
  • Page 65 5. Exploded View & Part List 5-2. LA32C550J1R Parts List Location No. Code No. Description & Specification Q’ty SA/SNA Remark F001A BN96-12806L ASSY COVER P-FRONT;32,LC550,SO,PMMA+PMMA PANEL BN07-00808A LCD-PANEL;LTF320HM01,SSCZMS,8bit,31.5,16 TCON BN81-04151A A/S-T CON LTF320HM01;LTF320HM01 INVER BN81-04167A A/S-INVERTER LTF320HM01;LTF320HM01 M0014 BN94-03456J ASSY PCB MAIN;NEW MODEL BN61-05990B HOLDER-SIDE AV;40,LC650,ABS+PMMA,BK0007,...
  • Page 66 5. Exploded View & Part List 5-2-1. LA32C550J1R Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LA32C550J1RXXM S001A BN90-02442B ASSY STAND;32,LC650,W/W,2COAT,ROSE BLACK SG03A BN96-12758B ASSY STAND P-GUIDE;32,LC650,W/W,PC+G/F,2 ...3...
  • Page 67 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 T0101 BN61-05996A BRACKET-WALL;LC650 40,SECC,T1.2 ...3 BN60-00188B SPACER-FOAM;LCD,FELT,20,3.0,20,Center : T0910 BN96-13341A ASSY BRACKET P-STAND LINK;LC530 32,SECC, ...3 BN61-02429K STUD-PEM;PNB,M3.8,D7,L14.9,ZPC(SIL),SUM2 ...3 M0115 BN61-06024A BRACKET-STAND LINK;LC550 32",SECC,T1.2 ...3 BN61-05281A HOLDER-CLAMP;LCD,NYLON 66,WHT...
  • Page 68 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..5 6042-000001 EYELET;ID2.2,OD2.7,L3.1,NI+SN,BSP3-1/2H ..5 6042-000002 EYELET;ID1.5,OD2,L2.8,NI+SN,BSP3-1/2H ..5 M0125 BH39-40362W CBF-HARNESS;0.6PHI,ROLL-TYPE 596.4 ..5 BN97-04149A ASSY SMD-POWER;BN94-03213A ..6 0401-001099 DIODE-SWITCHING;1N4148WS,75V,150mA,SOD-3 ..6 DR01A 0402-001942 DIODE-RECTIFIER;STTH3L06S,600V,3A,SMC,TP ..6 0403-001454 DIODE-ZENER;MMSZ5245B,14.25/15.75V,500mW ..6...
  • Page 69 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..6 V1233 2203-000575 C-CER,CHIP;220nF,10%,25V,X7R,TP,2012 ..6 AD480 2203-000938 C-CER,CHIP;0.47nF,5%,50V,C0G,2012 ..6 6MC22 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- ..6 AD480 2203-000979 C-CER,CHIP;47nF,10%,50V,X7R,TP,2012 ..6 C371 2203-001071 C-CER,CHIP;0.056nF,5%,50V,C0G,TP,1608 ..6 2203-001132 C-CER,CHIP;0.68nF,5%,50V,NP0,2012 ..6 AD480 2203-002494...
  • Page 70 BAG PE;HDPE,T0.03,W240,L400,TRP,8,2,-,5..3 AA68-03242M MANUAL FLYER-MANUAL FLYER-06,SAFETY GUID ...3 BH68-00527B MANUAL FLYER-00,WARRANTY CARD;COMM,Samsu ...3 T0527 BH68-20009B LABEL-ACCESSORY;ART-PAPER 100G,15,100,SD ...3 BN68-02186A MANUAL FLYER-TOC GUIDE;COMM,SAMSUNG,11 L ...3 BN68-02739A MANUAL USERS-IB;Comm,Samsung,English,Asi BN92-05757G ASSY LABEL;LA32C550J1RSSK BN68-02550A LABEL-LCD-POP;L550(52/46/40/37/32),Asia, T0527 BP68-00052B LABEL-00,RATING;CCTV,TETRON PAPER,T0.05, AA68-03752D LABEL-STICKER;WW,ALL,Art Paper(90g),44.5 BN92-05854A ASSY P/MATERIAL;32,LC650...
  • Page 71 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 3711-007302 HEADER-BOARD TO BOARD;BOX,18P,2R,2mm,ANG ...3 3722-003037 JACK-USB;4P/1C W/L,AU/NI,BLK,ANGLE,A ...3 JA330 3722-003038 JACK-PHONE;7P/1C W/L,SN,BLK ...3 JA333 3722-003040 JACK-PIN;3P W/L,SN,BLK/YEL/WHT/RED,ANGLE ...3 JA333 3722-003052 JACK-PIN;5P+Shield W/L,NI/SN,GN/BL/RD/WH ...3 3722-003058 JACK-MODULAR;8P/8C W/L,Y,STRAIGHT,N,AU,1...
  • Page 72 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 AR49 2007-000140 R-CHIP;1Kohm,5%,1/16W,TP,1005 ..4 MR306 2007-000141 R-CHIP;2.2Kohm,5%,1/16W,TP,1005 ..4 R319 2007-000143 R-CHIP;4.7Kohm,5%,1/16W,TP,1005 ..4 2007-000146 R-CHIP;6.8Kohm,5%,1/16W,TP,1005 ..4 R104 2007-000148 R-CHIP;10Kohm,5%,1/16W,TP,1005 ..4 R102 2007-000149 R-CHIP;12Kohm,5%,1/16W,TP,1005 ..4 MR36 2007-000153...
  • Page 73 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 KFC6 2203-000872 C-CER,CHIP;0.0030nF,0.25pF,50V,C0G,1608 ..4 AD480 2203-001428 C-CER,CHIP;470nF,10%,50V,X7R,TP,2012 ..4 AD480 2203-002285 C-CER,CHIP;10nF,10%,50V,X7R,1005 ..4 AD480 2203-002525 C-CER,CHIP;0.56nF,10%,50V,X7R,TP,1005 ..4 AAC1 2203-005249 C-CER,CHIP;100nF,10%,50V,X7R,TP,1608 ..4 AD480 2203-005511 C-CER,CHIP;27nF,10%,10V,X7R,TP,1005 ..4 AD480...
  • Page 74 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 T0052 2703-002268 INDUCTOR-SMD;8.2nH,5%,1005 ..4 AD480 2203-006824 C-CER,CHIP;4700nF,10%,10V,X5R,1608 ..4 AD480 2203-006841 C-CER,CHIP;1000nF,10%,16V,X5R,1005 ..4 L1103 2703-000403 INDUCTOR-SMD;22uH,10%,3225 ..4 2007-000072 R-CHIP;47ohm,5%,1/10W,TP,1608 ..4 JC31 2203-000715 C-CER,CHIP;3.3nF,10%,50V,X7R,1608 ..4 2203-005481 C-CER,CHIP;47nF,10%,10V,X7R,TP,1005...

  • Page 75: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram LA32/37C550 „...
  • Page 76 6. Wiring Diagram LA40/46C550 „...

  • Page 77: Connector

    6. Wiring Diagram 6-2. Connector CN1502_FHD (LVDS) CN903_SU (USB) EVEN[0]- USB VCC USBP 2.0 USBN 2.0 ODD[4]+ CN705_SAV (SIDE _AV) ODD[4]- VIDEO_SL_IN ODD[3]+ VIDEO_IDENT LVDS opt ODD[3]- VIDEO_CVBS VIDEO_SL_IN SDA_Panel VIDEO_SR_IN W/P(T_Con) ODDCLK+ VIDEO_SR_IN ODDCLK- CN210 (POWER 18P) SDA_Panel B13VS1 SW_INVERTER SCL_Panel ODD[2]+...
  • Page 78 6. Wiring Diagram CN1310 (MONITOR SOUND OUT) CN701 (COMP1_AV1) COMP1_PB MON_R_OUT IDENT_AV1 MON_L_OUT COMP1_Y & AV1_CVBS COMP1_PR COMP1_PR IDENT_COMP1 CN702 (COMP_AV SOUND) COMP1_AV1_SR_IN COMP1_AV1_SL_IN COMP1_AV1_SL_IN COMP1_AV1_SR_IN...

  • Page 79: Wiring Picture

    6. Wiring Diagram 6-3. Wiring Picture...

  • Page 80: Connector Functions

    6. Wiring Diagram 6-4. Connector Functions Connector Functions ↔ Supply dimming power from SMPS to Main Board. CN201 SMPS * defective symptom : abnormal Picture ↔ Connection Main Board and Speaker. CN1405 SPEAKER * defective symptom : No picture ↔ Connection Main Board and Function &...

  • Page 81: Cables

    6. Wiring Diagram 6-5. Cables LA32/37/40/46C550 „ (1) LVDS CONNECTOR (2) CONNECTOR POWER 18P (3) ASSY-SPEAKER BN96-13171E (32") BN39-01267A (32") BN96-12871A (32") BN96-13171B (37") BN39-01267C (37") BN96-12871B (37") Code BN96-13171C (40") BN39-01267E (40") BN96-12837A (40") BN96-13171D (46") BN39-01267F (46") BN96-12837B (46") Photo (5) CONNECTOR INVERTOR (5) CONNECTOR INVERTOR...
  • Page 82 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 For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.
  • Page 83 1. Precautions 1-2. Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
  • Page 84 1. Precautions 1-4. Installation Precautions For safety reasons, more than a people are required for carrying the product. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.

This manual is also suitable for:

La37c550j1rLa40c550j1rLa46c550j1r

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