Samsung LA26B450C4H Service Manual
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Samsung LA26B450C4H Service Manual

Samsung LA26B450C4H Service Manual

Chassis: n66d
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SERVICE
TFT-LCD TV
LA26B450C4H/LA32B450C4H/LA37B450C4H/
LA26B457C6H/LA32B457C6H/
LA37B457C6H/LA40B457C6H
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-TV
Chassis
: N66D
Model
: LA26B450C4H
LA32B450C4H
LA37B450C4H
LA26B457C6H
LA32B457C6H
LA37B457C6H
LA40B457C6H
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 LA26B450C4H

  • Page 1 LCD-TV Chassis : N66D Model : LA26B450C4H LA32B450C4H LA37B450C4H LA26B457C6H LA32B457C6H LA37B457C6H LA40B457C6H 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 LA26B450C4H/LA32B450C4H/LA37B450C4H/ LA26B457C6H/LA32B457C6H/ LA37B457C6H/LA40B457C6H Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    4-7. White Ratio (Balance) Adjustment ................4-39 4-8. Servicing Information ....................4-40 5. Exploded View & Part List ..................5-1 5-1. LA26B450C4H / LA26B457C6H Exploded View ............5-1 5-2. LA32B450C4H / LA32B457C6H Exploded View ............5-3 5-3. LA37B450C4H / LA37B457C6H Exploded View ............5-5 5-4.
  • Page 3 Mideast & Africa http://mea.samsungportal.com © 2009 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 3. Disassembly and Reassembly 3. Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LA32B457C6H LCD TV. WARNING: This LCD TV contains electrostatically sensitive devices. Use caution when handling these components. 3-1. Disassembly and Reassembly Cautions: 1.
  • Page 5 3. Disassembly and Reassembly Description Picture Description Screws 4. Remove the 4 screws of main board and 5 screws of IP board. 5. Remove the left and right speaker.
  • Page 6 3. Disassembly and Reassembly Description Picture Description Screws 6. Remove the 6 screws of bottom bracket stand link. 7. Lift up the bracket stand link.(panel’s BKLT) 8. Lift up the panel. Reassembly procedures are in the reverse order of disassembly procedures. ※...
  • Page 7 5. Exploded View & Part List 5. Exploded View & Part List 5-1. LA37B457C6H Exploded View...
  • Page 8 5. Exploded View & Part List 5-1-1. LA37B457C6H Parts List Location No. Code No. Description & Specification Q’ty S.A/S.N.A Remark T0003 BN96-10020D ASSY COVER P-FRONT;LB457 37,SO(HOTEL),PC T0175 BN96-09463B ASSY SPEAKER P;8ohm,4pin,10W,R:200/ L:50 M0215 BN07-00642A LCD-PANEL;T370XW02 VF,AU37X2F,8bit,37.0i M0027 BN96-10071A ASSY STAND P-BASE;LB450 37,40,ABS+PMMA,H M0115 BN61-04918A BRACKET-STAND LINK;40, B610,SECC,T1.6...
  • Page 9 5. Exploded View & Part List 5-2. LA37B457C6H Parts List Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LA37B457C6HXXL BN90-02024D ASSY COVER FRONT;LB450 37 S.N.A T0175 BN96-09463B ASSY SPEAKER P;8ohm,4pin,10W,R:200/ L:50 T0003 BN96-10020D ASSY COVER P-FRONT;LB457 37,SO(HOTEL),PC...
  • Page 10 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 CCM1 BN63-02183E COVER-SHEET;Rhcm,PE Vinyl,T0.04,750mm,20 S.N.A BN91-03837A ASSY LCD-AUO;BN07-00642A,AMVA,72% S.N.A M0215 BN07-00642A LCD-PANEL;T370XW02 VF,AU37X2F,8bit,37.0i ...3 BN81-02367A A/S-T CON T370XW02_VF;T370XW02_VF BN91-04095G ASSY SHIELD;LA37B457C6HXZN S.N.A CIS1 0203-001586 TAPE-FILAMENT;#893,0.15,25,55...
  • Page 11 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ...3 T0174 BN97-03422A ASSY SMD;LA26B450C4HXZN,BN94-02871A S.N.A ..4 0401-001049 DIODE-SWITCHING;LS4148,75V,150mA,SOD-80, ..4 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 0401-001099 DIODE-SWITCHING;1N4148WS,75V,150mA,SOD-3 S.N.A ..4 0403-000002 DIODE-ZENER;VLZ5V6B,5.45/5.73V,500mW,SOD ..4 0403-000607 DIODE-ZENER;VLZ16C,15.69/16.51V,500mW,SO ..4 0403-000771 DIODE-ZENER;VLZ6V2B,5.96-6.27V,500mW,SOD ..4...
  • Page 12 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 MR36 2007-000153 R-CHIP;22Kohm,5%,1/16W,TP,1005 S.N.A ..4 MR13 2007-000157 R-CHIP;47Kohm,5%,1/16W,TP,1005 S.N.A ..4 DR39 2007-000162 R-CHIP;100Kohm,5%,1/16W,TP,1005 S.N.A ..4 R509 2007-000170 R-CHIP;1Mohm,5%,1/16W,TP,1005 S.N.A ..4 R111 2007-000171 R-CHIP;0ohm,5%,1/16W,TP,1005 S.N.A ..4...
  • Page 13 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 ZC165 2203-000815 C-CER,CHIP;0.033nF,5%,50V,C0G,1608 ..4 CK40B 2203-000838 C-CER,CHIP;0.39NF,5%,50V,C0G,TP,1608 S.N.A ..4 AAC45 2203-000925 C-CER,CHIP;470nF,+80-20%,50V,Y5V,2012 ..4 6MC22 2203-000975 C-CER,CHIP;47nF,10%,25V,X7R,TP,1608,- S.N.A ..4 AD480 2203-000995 C-CER,CHIP;.047nF,5%,50V,C0G,TP,1005 ..4 AD480 2203-001412 C-CER,CHIP;0.03nF,5%,50V,NP0,TP,1005...
  • Page 14 CBF IF-MODULAR/MODULAR;Bordeaux Plus HOT ...3 T0074 BN59-00901A REMOCON;L450H,L457H,L550H,TM950,SAMSUNG, ...3 M9889 BN63-01798B CLOTH-CLEAN;cloth,180,200,sea blue,ToC S.N.A ...3 T0531 BN63-05327A COVER-BOTTOM;40,37LB450,PS,V0,BK500 ...3 BN68-02225D MANUAL FLYER-QSG;B450,SAMSUNG,ENG,ASIA H S.N.A ...3 M0045 BN96-01800A ASSY ACCESSORY-SCREW ZIPPER;ROME32,SCREW S.N.A ..4 T0081 6002-001294 SCREW-TAPPING;BH,+,,M4,L16,ZPC(BLK) S.N.A ..4 T0524 6902-000341 BAG PE;LDPE,T0.05,L90,W70,TRP,,,PE MARK...

  • Page 15: Precautions

    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 16: Servicing Precautions

    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 17: Installation Precautions

    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.
  • Page 18 1. Precautions Memo...

  • Page 19: Product Specifications

    2. Product specifications 2. Product specifications 2-1. Feature & Specifications Model LA26B450C4H/LA26B457C6H Feature RF, 2_HDMI, 1-HDMI/DVI, 1-Component, 1-Scart, 2-AV, D-Sub ሪ Brightness : 450cd/m ሪ Contrast Ratio : 2000:1 ሪ Response time : 8ms ሪ Dynamic contrast, PVA, TN ሪ...
  • Page 20 2. Product specifications Model LA32B450C4H/LA32B457C6H Feature RF, 2_HDMI, 1-HDMI/DVI, 1-Component, 1-Scart, 2-AV, D-Sub ሪ Brightness : 450cd/m ሪ Contrast Ratio : 2000:1 ሪ Response time : 8ms ሪ Dynamic contrast, Super-PVA ሪ PIP(in HDMI 1, 2, 3, Component 1, PC Mode and Sub picture is available only in TV analog mode) ሪ...
  • Page 21 2. Product specifications Model LA37B450C4H/LA37B457C6H Feature RF, 2_HDMI, 1-HDMI/DVI, 1-Component, 1-Scart, 2-AV, D-Sub ሪ Brightness : 450cd/m ሪ Contrast Ratio : 2000:1 ሪ Response time : 8ms ሪ Dynamic contrast, Super-PVA ሪ PIP(in HDMI 1, 2, 3, Component 1, PC Mode and Sub picture is available only in TV analog mode) ሪ...
  • Page 22 2. Product specifications Model LA40B457C6H Feature RF, 2_HDMI, 1-HDMI/DVI, 1-Component, 1-Scart, 2-AV, D-Sub ሪ Brightness : 450cd/m ሪ Contrast Ratio : 2000:1 ሪ Response time : 8ms ሪ Dynamic contrast, Super-PVA ሪ PIP(in HDMI 1, 2, 3, Component 1, PC Mode and Sub picture is available only in TV analog mode) ሪ...
  • Page 23 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 OSD CH NO CH NO CH NO CH NO Air-DTV Air-NTSC BAND Cable STD BAND Cable HRC Cable IRC 72.
  • Page 24 2. Product specifications OSD CH NO CH NO CH NO CH NO Air-DTV Air-NTSC BAND Cable STD BAND Cable HRC Cable IRC 499.25 ULTRA 498.00 499.25 505.25 ULTRA 504.00 505.25 511.25 ULTRA 510.00 511.25 517.25 ULTRA 516.00 517.25 523.25 ULTRA 522.00 523.25 529.25...

  • Page 25: Specification Comparison To Old Models

    2. Product specifications 2-2. Specification Comparison to Old Models Model LA**B457C6H(26”/32”/37”/40”) LA**A450C1H(26”/32”/37”/40”) Design Display Type LCD TV LCD TV Built-in Tuner Resolution 1366 x 768 1366 x 768 LCD Panel TFT LCD Panel 60Hz TFT LCD Panel 60Hz Screen Size 22”/26”/32”/37”/40”...
  • Page 26 (AAA x 2) Power Cord 3903-00145 BN63-04269A (26”) Cover-Bottom BN63-05326A (32”) BN63-05327A (37”/40”) Owner’s Instructions Samsung Electronics Service center Cleaning Cloth BN63-01798B Warranty Card / Registration Card / Safety Guide Manual (Not available in all locations) Stand Screw x 4 6002-001294 BN90-01510A (26”)

  • Page 27: Troubleshooting

    4. Troubleshooting 4. 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 28 4. Troubleshooting 4-1-1. No Power The LEDs on the front panel do not work when connecting the power cord. Symptom The IP BOARD 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 IP BOARD is not functioning.
  • Page 29 4. Troubleshooting Power connector Power connector (30pin) CN1001 (30pin) CN1001 MICOM IC MICOM IC IC6003 IC6003...
  • Page 30 4. Troubleshooting 4-1-2. No Video (Analog PC signal) Symptom Audio is normal but no picture is displayed on the screen. Check the PC source Major Check the SEMS03. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Check a set in the Power indicator LED is off.
  • Page 31 4. Troubleshooting LVDS connector LVDS connector LVDS connector CN8001_HD CN8001_HD CN8001_HD MICOM IC MICOM IC MICOM IC IC6003 IC6003 IC6003 JA4005 JA4005 JA4005...
  • Page 32 4. Troubleshooting WAVEFORMS R,G,B Output Signal...
  • Page 33 4. Troubleshooting 4-1-3. No Video (HDMI 1, 2, 3 - Digital Signal) Symptom Audio is normal but no picture is displayed on the screen. Check the HDMI source. Major Check the HDMI switch, Check the SEMS03. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power Indicator is off.
  • Page 34 4. Troubleshooting LVDS connector LVDS connector LVDS connector CN8001_HD CN8001_HD CN8001_HD MICOM IC MICOM IC MICOM IC IC6003 IC6003 IC6003 JA3003 JA3003 JA3003 JA3002 JA3002 JA3002 JA3002 JA3002 JA3002 JA3001 JA3001 JA3001...
  • Page 35 4. Troubleshooting WAVEFORMS Digital Output Data Signal of HDMI(Data)
  • Page 36 4. Troubleshooting 4-1-4. No Video (Tuner_CVBS) Symptom Audio is normal but no picture is displayed on the screen. Check the Tuner CVBS source. Major Check the Tuner, Check the SEMS03. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 37 4. Troubleshooting LVDS connector LVDS connector LVDS connector CN8001_HD CN8001_HD CN8001_HD MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 TUNER TUNER TUNER 4-11...
  • Page 38 4. Troubleshooting WAVEFORMS CVBS Output Signal Tuner_CVBS Output Signal 4-12...
  • Page 39 4. Troubleshooting 4-1-5. No Video (Video CVBS 1, 2) Symptom Audio is normal but no picture is displayed on the screen. Check the Video CVBS source Major Check the SEMS03. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 40 4. Troubleshooting LVDS connector LVDS connector CN8001_HD CN8001_HD MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 JA5004(AV2) JA5004(AV2) JA5007(AV1) JA5007(AV1) 4-14...
  • Page 41 4. Troubleshooting WAVEFORMS CVBS Output Signal 4-15...
  • Page 42 4. Troubleshooting 4-1-6. No Video (Component) Symptom Audio is normal but no picture is displayed on the screen. Check the Component source Major Check the SEMS03. checkpoints This may happen when the LVDS cable connecting the Main Board and the Panel is disconnected. Power indicator LED is off.
  • Page 43 4. Troubleshooting LVDS connector LVDS connector CN8001_HD CN8001_HD MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 JA5007 JA5007 CN4007 CN4007 4-17...
  • Page 44 4. Troubleshooting WAVEFORMS Digital Output Data Analog Signal(Y,C) 4-18...
  • Page 45 4. Troubleshooting 4-1-7. 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.. Check the source and Input the sound source properly.
  • Page 46 4. Troubleshooting LVDS connector LVDS connector CN8001_HD CN8001_HD MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC MICOM IC IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 IC6003 SOUND IC SOUND IC IC2002 IC2002 JA4001 JA4001...
  • Page 47 4. Troubleshooting WAVEFORMS The Signal are Inputed to IC1201 The Signal are Inputed to IC1202 4-21...

  • Page 48: 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 49: 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 50 PB350, PB430, PB450, PB550, PB550_FBE, L_ BASIC, LB350, LB360, LB360_22, LB450, LB450_22, LB460, LB480, LB480_22, LB530, LB550, B550_FBE, LB622, LB550_FBE_NM Tuner Select SEMCO SEMCO, XUGUANG Samsung Samsung Ch Table SUWON SUWON, SESK, SHE, TTSEC, SEIN, SDMA, TSED, SAVINA, SIEL, TSE Local Set...
  • Page 51 4. Troubleshooting ADC Result 1st_AV_Gain 0 ~ 255 1st_AV_Offset 0 ~ 255 1st_Comp_Gain 0 ~ 255 1st_Comp_Gain_Cb 0 ~ 255 1st_Comp_Gain_Cr 0 ~ 255 1st_Comp_Offset 0 ~ 255 1st_Comp_Offset_Cb 0 ~ 255 1st_Comp_Offset_Cr 0 ~ 255 1st_PC_R_Gain 0 ~ 255 1st_PC_G_Gain 0 ~ 255 1st_PC_B_Gain...
  • Page 52 4. Troubleshooting „ Control EDID EDID Protect On/Off EDID Type L13_1920_1080 P12_1024_768, P13_1024_768, P12_1366_768, P13_1366_768, P12_1920_1080, P13_1920_1080, L12_1366_768, L13_1366_768, L12_1920_1080, L13_1920_1080 EDID Write(0x4D,0) L13_1920_1080 P12_1024_768, P13_1024_768, SUCCESS P12_1366_768, P13_1366_768, P12_1920_1080, P13_1920_1080, L12_1366_768, L13_1366_768, L12_1920_1080, L13_1920_1080 Video Mute Time 0~99 Sub Option Inch 32”...
  • Page 53 4. Troubleshooting „ Hotel Option Hotel Option Hotel Mode On/Off „ Shop Option Shop Option Shop Mode On/Off „ Sound Detection Threshold OPTION RANGE SOUND Pilot Threshold M2S Thr High 0~255 M2S Thr Low 0~255 S2M Thr High 0~255 S2M Thr Low 0~255 Carrier1 Threshold Amp On Thr High 0~255...
  • Page 54 4. Troubleshooting „ MST69A84HQ VDEC SYNC_LVL 0~255 HPLL_MD HPLL_SPD1 0~63 HPLL_SPD2 0~255 CBCRLP_MD YC_DLY IFCOMP 0~63 SAT_ADJ 0~255 YSEPFLT NOISE_LVL 0~255 Film Det Speed NT 0~255 IPC/MJC Film Det Speed PAL 0~255 Motion Hist Motion History Red Sat 0~30 Color Space 0~127 Red Hue Green Sat...
  • Page 55 4. Troubleshooting „ FBE Pattern Select 0~25 B-Slope Gain 0~255 B-Tilt Min 0~255 B-Tilt Max 0~255 LFuc-Basis 0~255 HFuc-Basis 0~255 Mean-Offset1 0~255 Mean-Offset2 0~255 Mean-Slope 0~255 ACR Offset 0~127 ACR Th1 0~255 ACR Th2 0~255 Skin Enable 0~255 Skin Uv 0~255 Mskin Uv 0~255...
  • Page 56 4. Troubleshooting „ EPA Standard Std Contr 0~100 EPA Standard Std Bright 0~100 Std Sharp 0~100 Std Color 0~100 Std Tint 0~100 Std Backlight 0~10 „ Adjust Adjust Dynamic Dimming On/Off Dynamic CE Dynamic CE On/Off B Slope On/Off LNA Plus RF Db 0 Level 0~255 RF Db 1 Level...
  • Page 57 4. Troubleshooting „ YC_Delay PAL BG YC Delay PAL DK PAL I SECAM BG SECAM DK SECAM L NTSC 358 NTSC 443 AV PAL AV SECAM AV NT358 AV NT443 AV PAL60 „ Sharpness Sharpness H1 Gain 0~63 H2 Gain 0~63 H3Gain 0~63...
  • Page 58 4. Troubleshooting „ PE Skin X 0~11 Skin Y 0~11 B Slope 0~255 DLC ML 0~255 DLC_MH 0~255 DLC_H 0~255 Skin_SAT 0~15 Skin_Hue 0~127 M_Skin_Hue M_Skin_X 0~11 M_Skin_Y 0~11 Mid_color_level 0~255 M_Mid_color_level 0~255 „ EEPROM Reset EEPROM Reset EEPROM Reset NVR All Clear On/Off „...

  • Page 59: Hotel Interactive Mode

    4. Troubleshooting 4-4. Hotel Interactive Mode 4-4-1. Entering Hotel Interactive Mode Under power on condition, INFO + MENU + 0 + 1 + EXIT 4-4-2. Hotel Interactive Mode Data ITEM Initial Value Description Hotel Mode Hotel mode(Stand alone) on/off SI Vendor Select the SI Vendor Power On Channel TV will switch on to this particular Channel in Stand alone Hotel Mode...
  • Page 60 4. Troubleshooting ITEM Initial Value Description DC Power Output Port control for DC power output jack (5V/12V) RJP AV Select RJP AV Source(AV1/AV2) If the jack priority is set, the corresponding source is automatically set when a RJP Priority(AV) jack is inserted according to the jack priority. If the jack priority is set, the corresponding source is automatically set when a RJP Priority(PC) jack is inserted according to the jack priority.

  • Page 61: Stand Alone Hotel Mode

    4. Troubleshooting 4-5. Stand Alone Hotel Mode 4-5-1. Entering Stand Alone Hotel Mode Under power on condition, MUTE + 1 + 1 + 9 + ENTER 4-5-2. Stand Alone Hotel Mode Data ITEM Initial Value Description Hotel Mode Hotel mode(Stand alone) on/off SI Vendor Select the SI Vendor Power On Channel...
  • Page 62 4. Troubleshooting ITEM Initial Value Description Power On(AC Power On) Option - STN-BY : Stand-By Mode Power On Option LAST OPT - Power On : Power On - LAST OPT : Last Power State In Stand-By mode, when PC source is connected to TV, TV should Auto PC automatically be Power On and Auto Ident PC Mode.

  • Page 63: White Balance -Calibration

    4. Troubleshooting 4-6. White Balance - Calibration 4-6-1 White Balance -Calibration 1. Calibration AV Calibration Comp Calibration PC Calibration HDMI Calibration 4-6-2 Service Adjustment - You must perform Calibration in the Lattice Pattern before adjusting the White Balance. „ Color Calibration Adjust spec.
  • Page 64 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 65: White Ratio (Balance) Adjustment

    4. Troubleshooting 4-6-3 White Balance - Adjustment (low light) (hight light) Sub Bright Sub Contrast 3. W/B R offset R gain G offset G gain B offset B gain (W/B adjustment Condition refer next page) 4-7. White Ratio (Balance) Adjustment You can adjust the white ratio in factory mode (1:Calibration, 3:White-Balance).

  • Page 66: Servicing Information

    4-8. Servicing Information 4-8-1 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 67 Interactive : When TV is powered-up initially it sends command to identify SBB/STB, if identified TV switches to ONLINE mode and full control is through SBB/STB. In ONLINE TV stops receiving IR(Samsung remote) commands and acts according to interface protocol.
  • Page 68 4. Troubleshooting Connecting the TV with STB (SBB) LA26B457C6H, LA32B457C6H, LA37B457C6H, LA40B457C6H TV Rear Panel FACTORY Hotel sever STB(Set Top Box) or SBB(Set Back Box) Data Cable Connect the [DATA] jack of the TV to the [ETH MODEM] jack of the STB(SBB) with the Data cable. - Use data communication.
  • Page 69 4. Troubleshooting Connecting the Bathroom Speakers You can connect the Bathroom Speakers in one of the following 2 methods. Connecting through the Variable Output (available without an external amplifier) 1. Connect the VARIABLE AUDIO [R-AUDIO-L] port of the TV to the Bathroom Wall Speakers of the hotel. Signal wire : Speaker + Shield wire : Speaker - 2.
  • Page 70 4. Troubleshooting Installing the Volume Control - If you configure the Volume Control Box as shown by the figure, you can control the volume of bathroom speakers. - The jack that is connected from the Volume Control Box to the TV is a normal Phone jack. - Volume Control Box switch consists of Tact switch.
  • Page 71 4. Troubleshooting Connect through the Fixed Output (available without an external amplifier) Connect the AUDIO OUT port of the TV and the Audio In port of the audio amplifier with a stereo cable. 4-45...
  • Page 72 Connect the [HDMI] port of the TV and the HDMI port of the RJP. Connect the RJP port of the TV and the RS/232 port of the RJP. - The RJP (Remote Jack Pack) compatible with this Samsung TV is TeleAdapt TA-7610. 4-46...
  • Page 73 4. Troubleshooting RJP(Remote Jack Pack) RJP stands for Remote Jack Pack. The RJP is a hardware module that has different Audio Video inputs (A/V, S-Video, Audio, PC and HDMI) and corresponding outputs. The corresponding output sources are connected from RJP to TV. The RJP communicates with the TV via RS232.
  • Page 74 4. Troubleshooting Welcome Message Welcome message is a feature to display custom message on TV, every time TV is turned on by Guest in Hotel room. - Welcome message settings are placed in Hotel Option Menu. - Welcome message can be of only 25 characters and it can be edited by changing its text in Hotel Service menu. - Following is the list of characters supported for Welcome message: - In alphabets from A to Z only in capital letters is allowed.
  • Page 75 - This function is useful in the place a large number of TV are provided like hospital Set ID number will be displayed in source osd or center. There might be different in location of Set ID number depending on product and model. - Samsung IR Signal Format - Initial ID code which is transmitted is fixed as 0.
  • Page 76 Hotel Plug & Play is a function that automatically performs the Hotel mode selection, Country Setup, Clock Setup and Picture mode Setup once, when power is first turned ON, after a Service Reset is executed. - Samsung IR Signal Format - Initial ID code which is transmitted is fixed as 0.
  • Page 77 4. Troubleshooting Setting the Time *The time is entered - Press the remote control button to select “Clock set” and set up the time. Menu Setup Time Clock Set - Once the time is set, the World Time is automatically updated.

  • Page 78: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram 6-1-1. LA26/32/37B450C4H_LA26/32/37/40B457C6H...
  • Page 79 6. Wiring Diagram Scart(JA5010_E) Power and Dimming (CN1001) SC1_SR_OUT HSYNC_OUT SC1_SR_IN SC1_SL_OUT SC1_R SC1_FB B13V SC1_SL_IN B13V SC1_B B13VS B13V IDENT_SC1 AV_SC1_CVBS_OUT B13VS ANA_DIMMING_OUT SC1_CVBS_IN INVERTER SC1_G PWM_DIMMING_OUT SIDE-AV SENSE_POWER IDENT_SIDE_AV2 AV2_CVBS_IN SIDE_AV_SR_IN SIDE_AV_SL_IN SIDE_AV_SL_IN SIDE_AV_SR_IN Component 1 VIDEO (JA5008) Component 1 SOUND (JA5007) FUNCTION &...
  • Page 80 6. Wiring Diagram FUNCTION & IR(CN4007) DVI & PC SOUND INPUT(JA4001) PC_SR_IN PC_SL_IN LED_STB PC_SL_IN BUZZER PC_SL_IN KEY_INPUT1 PC_SR_IN KEY_INPUT2 PC_SR_IN HDMI 1 Connection (JA3001) HDMI 2 Connection (JA3002) HDMI 3 Connection (JA3003_3H) HDMI1_RX2+ HDMI1_RX2+ HDMI1_RX2+ HDMI1_RX2- HDMI1_RX2- HDMI1_RX2- HDMI1_RX1+ HDMI1_RX1+ HDMI1_RX1+ HDMI1_RX1-...

  • Page 81: Connector Functions

    6. Wiring Diagram 6-2. Connector Functions Connector Functions CN1001 <-> SMPS Supply dimming power from SMPS to Main Board. * defective symptom : abnormal Picture CN2001 <-> SPEAKERS Connection Main Board and Speaker. * defective symptom : No picture CN4007 <-> Function & IR Connection Main Board and Function &...

  • Page 82: Cables

    6. Wiring Diagram 6-3. Cables 6-3-1. LA26/32/37B450C4H (1) LVDS CONNECTOR (2) CONNECTOR POWER 30P (3) ASSY-SPEAKER BN96-07611P(37”) BN39-01099B (37”) BN96-09463B (37”) Code BN96-07766K (32”) BN39-01099J (32”) BN96-09463A (32”) BN96-07766J (26”) BN39-01099H (26”) BN96-06822H (26”) Photo (4) IR to FUNCTION BN96-07640F (26”/32”) Code BN96-07640G (37”/40”) Photo...

This manual is also suitable for:

La32b450c4hLa37b450c4hLa26b457c6hLa32b457c6hLa37b457c6hLa40b457c6h

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