4-1 First Checklist for Troubleshooting ………………………………………………………………………………………………………4-1 4-2 Checkpoints by Error Mode ……………………………………………………………………………………………………………… 4-2 . Exploded View and Parts List …………………………………………………………………………………………………………………5 5-1 LN23R71BAX/LN23R71WAX Exploded View ………………………………………………………………………………………… 5-1 5-2 LN23R71BAX Parts list…………………………………………………………………………………………………………………… 5-2 5-3 LN23R71WAX Parts list ………………………………………………………………………………………………………………… 5-2 5-4 LN26R71BAX Exploded View …………………………………………………………………………………………………………… 5-3 5-5 LN26R71BAX Parts list……………………………………………………………………………………………………………………...
1 Precautions 1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 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.
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.
3 Alignments and Adjustments 3 Alignments and Adjustments 3-1 Service Instruction 1. Usually, a color TV-VCR 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.
3 Alignments and Adjustments 3-2 How to Access Service Mode 3-2-1 Entering Factory Mode 1. To enter "Service Mode" Press the remote -control keys in this sequence : - If you do not have Factory remote - control Power OFF MUTE Power On - If you have Factory remote - control...
2. Option Byte inch Option Carrier Mute Shop Mode Gamma Auto FM Debug Panel option AUO_AMVA High Dev. Dynamic Contrast 2HDMI V-Chip Brt,Sensor Dynamic CE EnergySave Dynamic Dimming LBE/FBE Color System Manual FRC(Micronas) Auto Power FRC(Samsung) Magazine LNA V-Chip Area...
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Inch Option 26" 32" 40" Gamma AMLCD Panel Option AUO_AMVA AMLCD_INT 2Hdmi Brt. Sensor EnergySave LBE/FBE FRC(Micronas) FRC(Samsung) Carrier Mute Auto FM High Deviation Dynamic CE Dynamic Dimming Color System Manual Manual Manual Auto Power Magazine LNA V-Chip Area Shop Mode...
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3 Alignments and Adjustments low high delta Calibration Target AV ADC 17H D5H COMP ADC 0FH EBH PC ADC 17H D5H ALL RGB 00H DDH Color Management Skin Direction Reddish Skin Enhane 5. Option block 6. STV8258/STA323W Ch1 Volume Ch2 Volume Stereo Pilot H Stereo Pilot L Sap Pilot H...
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3 Alignments and Adjustments 8. Adjust Video Mute Time Vol Curve Large Melody Volume Ana_Dimm_Max LNA PLUS RFDB-1 Level RFDB-2 Level RFDB-3 Level RFDB-4 Level Hotel Option Hotel Mode Power On Channel 1 Power On Volume Max Volume Local Key Lock Power On Source 9.
3 Alignments and Adjustments 3-4 Service Adjustment 3-4-1 White Balance - Calibration If picture color is wrong, do calibration first. Equipment : CA210, Patten : chess pattern Execute calibration in Factory Mode Source AV : PAL composite, Component : 1280*720/60Hz PC : 1024*768/60Hz ( chess patten ) 3-4-2 White Balance - Adjustment...
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3 Alignments and Adjustments 3-4-3 Conditions for Measurement 1. On the basis of toshiba ABL pattern : High Light level (57 IRE) - INPUT SIGNAL GENERATOR : MSPG-925LTH * Mode 1 : 744X484@60 Hz 2 : 744X484@60 Hz 6 : 1280X720@60 Hz NO 21 : 1024X768@60 Hz * Pattern NO 36 : 16 Color Pattern NO 16 : Toshiba ABL Pattern...
3 Alignments and Adjustments 3-5 Software Upgrade 3-5-1 How to Update Flash ROM (with RS-232C Cable) 1. Installthe Flash Downloader ConnectSet(Service Jack)and Jig Cable to execute Program Update. 2. Turn on the Set (or on Stand by mode) - Run "MTKtool" - Click Reset - Choose MT8202 (1) - Select Com Port (2) (Auto Detect)
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3 Alignments and Adjustments 3-5-2 How to Update Flash ROM (with UART JIG) ¡Ø In the usual cases, Update S/W by using RS-232C Cable. If some problems occur under this condition, update S/W by using UART JIG. You can use UART JIG with USB Connection. Install in your PC before using the JIG Connect 4P Lead connector to Main Board(CN501)
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3 Alignments and Adjustments * Pin Assignment Turn on the Set (or on Stand by mode) - Run "MTKtool" When you run "MTKtool", this Program can detect USB port automatically Choose USB interface and Update S/W as RS-232C case. 3-14...
4 Troubleshooting 4 Troubleshooting 4-1 First Checklist for Troubleshooting 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 cable connection or a connection is too loose. - Check to see if the cables are connected according to the connection diagram.
4 Troubleshooting 4-2 Checkpoints by Error Mode 4-2-1 No Power Check a connection a power cable. LAMP off, power indicator P/N : BN39-00802A LED red color? BN39-00802B(40") Does proper Satand-By DC A5V appear at C127 Change the Main Power Ass'y Does proper Main DC B12V, 23"...
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R916_FBE ~ Change the main PCB Ass'y. R921FBE? Does the digital data appearat Check IC 901_FBE output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel?
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4 Troubleshooting WAVEFORMS PC Input (V-Sync, H-Sync) LVDS Out (CLK +/-)
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R916_FBE ~ Change the main PCB Ass'y. R921FBE? Does the digital data appearat Check IC 901_FBE output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel?
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R916_FBE ~ Change the main PCB Ass'y. R921FBE? Does the digital data appearat Check IC 901_FBE output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel?
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R916_FBE ~ Change the main PCB Ass'y. R921FBE? Does the digital data appear Check IC 901_FBE at output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel?
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4 Troubleshooting WAVEFORMS TS DATA Out (CLK, DATA [0]) Eagle+ Out (CLK, H-Sync) 4-10...
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Change the main PCB Ass'y. R921FBE? Does the digital data appear Check IC 901_FBE at output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel? 4-11...
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Change the main PCB Ass'y. R921FBE? Does the digital data appear Check IC 901_FBE at output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel? 4-12...
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Change the main PCB Ass'y. R921FBE? Does the digital data appear Check IC 901_FBE at output of R1001_FBE ~ Change the main PCB Ass'y. R1017_FBE? Check the LVDS cable? Please, call to Samsung Co. LTD Replace the LCD panel? 4-14...
Does the digital data appear Check IC8002 at R8028, R8029? Change the main PCB Ass'y. Does the signal appear at Check IC8005 BD8003, BD8008, BD8010, Change the main PCB Ass'y. BD8011? Please, call to Samsung Co. LTD Replace the speaker Ass'y? 4-16...
5 Exploded View & Parts List 5 Exploded View and Parts List - You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 5-1 LN23R71BAX/LN23R71WAX Exploded View M0014 M0013 T0175 T0159 T0447 M0215 T0175 M0027 T0003...
6 Electrical Parts List 6 Electrical Parts List -You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 6-1 LN23R71BAX/LN23R71WAX Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LN23R71WAX/XAO LN23R71W,N33A/23R70-GNB,23,LCD-TV,COLOMB M0001 BN90-00911M ASSY COVER FRONT;23R71,LO,ABS+PMMA,HB,WH...
10 Operating Instructions and Installation 10 Operating Instructions and Installation 10-1 Front - The product color and shape may vary depending on the model. - The product color and shape may vary depending on the model. 1. SOURCE 5. SPEAKERS Toggles between all the available input sources (TV, AV1, AV2, S-Video, Component1, Component2, (Power)
10 Operating Instructions and Installation 10-2 Connection Panel 1. AV IN 1, 2 Headphone Video and audio inputs for external devices, such as Connect a set of external headphones for private listening. a camcorder or VCR. S-VIDEO Connect an S-Video signal from a camcorder or VCR. 6.
10 Operating Instructions and Installation 10-3 Remote Control 10-3...
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10 Operating Instructions and Installation 1. TV, DVD, STB, CABLE, VCR 19. SOURCE Press to operate your TV, DVD, STB, CABLE Press to display all of the available video (box), or VCR sources. 2. POWER 20. PRE-CH Turns the TV on and off. Turns to the previous channel.
11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the TFT-LCD TV. WARNING : This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions : 1.
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11 Disassembly and Reassembly Description Picture Description 2. Lift up the rear cover and remove the stand. 3. Remove Screws from the stand BRKT and lift up the stand BRKT. 11-2...
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11 Disassembly and Reassembly Description Picture Description 4. Remove screws from the shield and disconnect cable. 5. Lift up the shield and disonnect cables from the boards. 11-3...
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11 Disassembly and Reassembly Description Picture Description 6. Remove screws from the boards and remove screw from theside connector. 7. Lift up the speakers and remove screws from the panel BRKT. 11-4...
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11 Disassembly and Reassembly Description Picture Description 8. Remove screws and lift up the BRKT. 9. Lift up the panel. 11-5...
13 Circuit Descriptions 13 Circuit Descriptions 13-1 Block description 13-1-1 Block description with IP Board Signal Power IP Board RF In (Air, Cable) A/V 1, 2 S-Video Main Board Panel Component1, 2 T-con Board DVI-D Speaker IR/LED Bordeaux consists of three main blocks 1.
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13 Circuit Descriptions 13-1-2 Block description with SMPS Signal Power SMPS INVERTER RF In (Air, Cable) A/V 1, 2 S-Video Main Board Panel Component 1, 2 T-con Board DVI-D Speaker IR/LED Bordeaux consists of three main blocks 1. Main board : Video signal processing 2.
14 Reference Infomation 14 Reference Infomation 14-1 Technical Terms - TFT-LCD - Auto Configuration(Auto adjustment) (Thin film Transistor Liquid Crystal Display) This is an algorithm to adjust monitor to optimum ADC(Analog to Digital Converter) condition by pushing one key. This is a circuit that converts from analog signal to digital signals.
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14 Reference Infomation - T.M.D.S - Interlace and Non-Interlace Methods (Transition minimized Differential Signaling) Showing the horizontal lines of the screen from the a kind of transmission method for Digital. top to the bottom in order is called the Non- It can be used from Video card to Main PBA.
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Enables high picture quality and clear sound channel to obtain the best viewing conditions. The throughout the country regardless of the location of Samsung LCD TV has both automatic and manual the viewer. channel fine-tuning features to enable the viewer to adjust their desired settings.
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14 Reference Infomation 14-2-2 Component 14-2-3 S-Video Separate RCA Green Pb (Cb) RCA Blue Pr (Cr) RCA Red Audio L 14-2-5 D-SUB RCA White Separate Audio R RCA Red Green Blue 14-2-4 A/V GND Red GND Green GND Blue RCA Yellow CVBS DDC Input power(+5V) Audio L...
14 Reference Infomation 14-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer- generated video signals. 14-3-1 LCD Panel Mode1 mode 14-6...