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Samsung Electronics Co.,Ltd. - This Service Manual is a property of 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Samsung Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be Printed in Korea punished under applicable International P/N : BN82-00145G-00 and/or domestic law.
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.
1 Precautions 1-4 Installation Precautions 1. For safety reasons, more than two people are 6. Keep the antenna far away from any high-voltage required for carrying the product. cables and install it firmly. Contact with the high- voltage cable or the antenna falling over may 2.
Excellent Compatibility. SD/MMC/CF/MD/MS/MSPRO/XD/SM Smooth Motion Driver - No ghosting, No Smearing Edge in image powered by Smooth Motion Driver Engine of Samsung LCD TV Wide Color Gamut - More natural and vivid picture quality by WCG (127%) High Dynamic Contrast...
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 " " - If you have Factory remote - control - The buttons are active in the service mode. 1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left Arrow Right, Menu, Enter, Number Key(0~9) 2.
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...
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 2 : 744X484@60 Hz 6 : 1280X720@60 Hz NO 21 : 1024X768@60 Hz * Pattern NO 36 : 16 Color Pattern NO 16 : Toshiba ABL Pattern 2.
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3 Alignments and Adjustments d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode) - Adjust red gain ('x') and blue gain ('y') to the color coordinates. * Do not adjust the green gain and sub-contrast (Y) data. Picture 4-3 Toshiba ABL Pattern High light Measurement point...
3 Alignments and Adjustments 3-5 Software Upgrade 3-5-1 How to Update Flash ROM 1. Installthe Flash Downloader ConnectSet(Service Jack)and Jig Cable to execute Program Update. 2. Flash Downloader program update -Before Turning on the set,Click "connect"which is under of OSD Screen! -Turn on the Set.
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 LAMP off, power indicator Check a connection a power cable. LED blue color? Does proper DC 12V Change a Assy PCB Power. appear at CM801? Does proper DC A3.3V, Check a IC1008, IC1004. A5V appear at Change a main PCB ass'y.
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Change a main PCB ass'y. RA6005_FRC, RA6009_FRC, RA6016_FRC, RA6018_FRC)? Does the digital data appear Check IC6003,4 at the out of L6001~12? Change a main PCB ass'y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel?
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4 Troubleshooting WAVEFORMS R,G,B Output Signal of IC500...
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Change a main PCB ass'y. RA6005_FRC, RA6009_FRC, RA6016_FRC, RA6018_FRC)? Does the digital data appear Check IC6003,4 at the out of L6001~12? Change a main PCB ass'y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel?
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4 Troubleshooting Digital Output Data of IC500 Signal of HDMI(Data)
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Change a main PCB ass'y. RA6005_FRC, RA6009_FRC, RA6016_FRC, RA6018_FRC)? Does the digital data appear Check IC6003,4 at the out of L6001~12? Change a main PCB ass'y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel?
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Change a main PCB ass'y. RA6005_FRC, RA6009_FRC, RA6016_FRC, RA6018_FRC)? Does the digital data appear Check IC6003,4 at the out of L6001~12? Change a main PCB ass'y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel?
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4 Troubleshooting WAVEFORMS CVBS Output Signal 4-10...
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Change a main PCB ass'y. RA6005_FRC, RA6009_FRC, RA6016_FRC, RA6018_FRC)? Does the digital data appear Check IC6003,4 at the out of L6001~12? Change a main PCB ass'y. Check a LVDS cable? Please, Call to Samsung Co. LTD. Replace a lcd panel? 4-11...
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4 Troubleshooting WAVEFORMS Digital Output Data of IC500 Analog Signal(Y,C) to IC500 4-12...
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4 Troubleshooting 4-2-7 No Sound Connect a sound cable. Picture is display, no sound. control a volume. Does the signal appear at Pin #10, #16(CH1_L, R Sound) Check a connection harness and and Pin #3, #9 headphone jack / Side AV. (CH2_L, R Sound) of IC1015? Check the DC 12V...
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4 Troubleshooting WAVEFORMS The Signal are Inputed to IC1015 DC +12V 4-14...
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/ M0013 T0447 M0014 M0215 T0003 T0175 T0175 M0013...
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 LE40M91BX Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LE40M91BX/XEE LE40M91B,Q56A/40M90-GMD,40,LCD-TV,SWEDEN M0001 BN90-00935H ASSY COVER FRONT;40M91,EO,ABS+PMMA,HB,BK...
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6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ...3 CN330 3711-005607 HEADER-BOARD TO CABLE;BOX,32P,2R,2mm,STR ...3 CN330 3711-005841 HEADER-BOARD TO CABLE;BOX,20P,2R,2.0mm,S ...3 CN330 3711-005842 HEADER-BOARD TO CABLE;BOX,24P,2R,2.0mm,S ...3 JA2001_EU 3722-000498 JACK-SCART;21P,-,SN,BLK,NO ...3 JA2005_EU 3722-000498 JACK-SCART;21P,-,SN,BLK,NO ...3 JA330 3722-001061...
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8 Wiring Diagrams 8-2 Main Board Layout...
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8 Wiring Diagrams 8-3 PIN characteristic CN800 - Main Board power supply NAME SW GND GND GND GND GND B12VS B12VS GND POWER NAME GND GND GND B12V B12V B12V B12V GND Function Define - B12V B12V_CHN, B9V, B8V, B5V_VCCT - B5V B33V, B5V_VCCA, B3.3VD, B2.5V_VDD, B1.8VD, PX_VD1.8, PX_VA1.8, PX_VL1.8, B1.2VD - B12VS...
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8 Wiring Diagrams CN221 - Front control NAME SDA-T SCL-T GND GND IDENT HP-L HP-R INPUT1 INPUT1 INPUT2 Function Define - A5V Front control board poewr supply - KEY INPUT1,2 Key control, from the memu, change up/down Etc. - IR Remote control signal - LED Control the timing and stand by LED color...
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8 Wiring Diagrams 8-4 Power Board Layout...
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8 Wiring Diagrams CN801 - AC Input NAME Live Netural VOLTAGE Functing Define - Refer to : AC Input CN801 - Main Board power supply NAME 13V GND 5.4V 5.4V 5.4V GND GND GND GND ST7V PWR Functing Define - ST7V Stand-By Output - PWR Power On/Off Control - Refer to : CN801 function define CNM804 - Panel control...
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8 Wiring Diagrams CN802 - Inverter power supply NAME 24V GND GND GND GND Functing Define - AMLCD Panel Inverter Power - 24V LAMP INVERTER Voltage - B/L Brightness sensor power - A_D ANA_DIMMING - P_D PWM_DIMMING CN803 - Inverter power supply NAME 24V GND GND GND GND...
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8 Wiring Diagrams CN801 - AC Input NAME Live Netural VOLTAGE Functing Define - Refer to : AC Input CN801 - Main Board power supply NAME 13V GND 5.4V 5.4V 5.4V GND GND GND GND ST7V PWR Functing Define - ST7V Stand-By Output - PWR Power On/Off Control - Refer to : CN801 function define CNM804 - Panel control...
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8 Wiring Diagrams CN803 - Inverter power supply NAME 24V GND GND GND GND Functing Define - AMLCD Panel Inverter Power - 24V LAMP INVERTER Voltage - B/L Brightness sensor power - A_D ANA_DIMMING - P_D PWM_DIMMING CN804 - Inverter power supply NAME 24V GND GND GND GND...
9 Schematic Diagrams 9 Schematic Diagrams -This Document can not be used without Samsung's authorization. 9-1 POWER SOUND PROCESS Schematic Diagram B 9V B 12V B 8V C 1001 C 1003 10uF 100nF IC 1001 B A178M08F P G ND...
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10 Operating Instructions and Installation 10 Operating Instructions and Installation 10-1 Front - The product colour and shape may vary depending on the model. 1. SOURCE 5. Speakers Toggles between all the available input sources (TV, Ext.1 , Ext.2, AV, S-Video, Component, PC, (POWER) HDMI1, HDMI2).
10 Operating Instructions and Installation 10-2 Connection Panel - Whenever you connect an external device to your TV, make sure that power on the unit is turned off. - When connecting an external device, match the colour of the connection terminal to the cable. 10-2...
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10 Operating Instructions and Installation Connecting an Aerial or Cable Television Network To view television channels correctly, a signal must be received by the set from one of the following sources: - An outdoor aerial / A cable television network / A satellite network Connecting HDMI/DVI - Supports connections between HDMI-connection-enabled AV devices (Set-Top Boxes, DVD players, AV receivers and digital TVs).
10 Operating Instructions and Installation 10-3 Remote Control 1. Selects a target device to be controlled by the Samsung remote control (TV, DVD, STB, CABLE, VCR) 2. Television Standby button 3. Number buttons for direct channel access 4. One/Two-digit channel selection 5.
For detailed information on installing the wall mount, see the instructions provided with the Wall Mount items. Contact a technician for assistance when installing the wall mounted bracket. Samsung Electronics is not responsible for any damage to the product or injury to yourself or others if you elect to install the TV on your own.
11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the TFT-LCD WARNING : This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions : 1. Disconnect the monitor from the power source before disassembly. 2.
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11 Disassembly and Reassembly Description Picture Description 2. Remove screws from the rear-cover and lift up the rear-cover. 3. Disconnet cables from the main and power boards Remove screws from the side AV jack. 11-2...
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11 Disassembly and Reassembly Description Picture Description 4. Remove screws from the boards and stand BRKT. 5. Lift up the speakers. Remove screws from the BRKT. 11-3...
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11 Disassembly and Reassembly Description Picture Description 6. Lift up the Panel and remove screws. 7. Lift up the panel BRKT. 11-4...
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11 Disassembly and Reassembly 11-2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures. 11-5...
13 Circuit Descriptions 13 Circuit Descriptions 13-1 Block description Signal Power SMPS RF In (Air, Cable) Scart 1,2 S-Video Main Board Component Panel T-con HDMI1/2 Board Speaker IR/LED Mosel consists of three main blocks 1. Main board : Video signal processing 2.
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13 Circuit Descriptions Signal Power SMPS INVERTER RF In (Air, Cable) Scart 1,2 S-Video Main Component Board Panel T-con HDMI1/2 Board Speaker IR/LED Mosel consists of three main blocks 1. Main board : Video signal processing 2. SMPS : Power supply 3.
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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VHF indicates TV channels 2 to 13, and UHF indi- cates channels 14 through 69. - Channel Fine Tuning This feature allows the viewer to fine-tune the TV channel to obtain the best viewing conditions. The Samsung LCD TV has both automatic and manual 14-3...
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 14-2-7 Scart 1 Signal Signal Audio output R Audio input R Video GND (RGB red) Audio output L Audio common GND RGB red input Video GND (RGB blue) Fast Blanking signal (RGB switching) Audio input L Video output GND RGB blue input Video input GND Switching voltage...
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 Timing No. LTA400W2 Originator VESA Mode Name 1366/60Hz Resolution (H x V) 1366 x 768 HORIZONTAL...
14 Reference Infomation 14-3-2 Supported Modes (1) Timing No. Originator VESA VESA Mode Name VGA2 VGA3 640/72Hz 640/75Hz 640/67Hz Resolution (H x V) 720 x 400 640 x 480 720 x 400 720 x 400 640 x 480 HORIZONTAL Frequency 31.169kHz 31.469kHz 37.861kHz...
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14 Reference Infomation 14-3-3 Supported Modes (2) Timing No. Originator VESA VESA VESA Mode Name 800/60Hz 800/72Hz 800/75Hz Resolution (H x V) 800 x 600 800 x 600 800 x 600 HORIZONTAL Frequency 37.879kHz 48.077kHz 46.875kHz Total time 26.400 20.800 21.333 Active time 20.000...
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14 Reference Infomation 14-3-4 Supported Modes (3) Timing No. Originator VESA VESA VESA VESA Mode Name 1024/60Hz 1024/70Hz 1024/75Hz 1360/60Hz Resolution (H x V) 1024 x 768 1024 x 768 1024 x 768 1360 x 768 HORIZONTAL Frequency 48.363kHz 56.476kHz 60.023kHz 47.712kHz Total time...