TFT-LCD TV/MONITOR Chassis Model NF26SO LS26A33W SERVICE Manual TFT-LCD TV/MONITOR CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Alignment & Adjustments 5. Troubleshooting 6. Exploded View & Parts List 7. Parts List 8. Block Diagram 9. Wiring Diagram 10.
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Samsung Electronics Co.,Ltd. This Service Manual is a property of 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Kyungki-Do, Samsung Electronics Co., Ltd. Korea, 443-742 Any unauthorized use of Manual can be Printed in Korea punished under applicable International P/N : BN82-00109V-00 and/or domestic law.
A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and/or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate. LS26A33W...
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“anti-static” can replacement ESDs. Motions such as brushing clothes generate electrical charges sufficient to damage ESDs. together, or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD. LS26A33W...
– BASS Control Range : -8 dB ~ + 8dB – TREBLE Control Range : -8 dB ~ +8 dB – Headphone Out : 10 mW MAX – Output Frequency : RF : 80 Hz ~ 15 kHz A/V : 80 Hz ~ 20 kHz LS26A33W...
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2 Product Specifications 2-2 Pin Assignments 2-2-1 DVI-D (Digital) Ref) DVI-D : Digital only Signal Assignment Signal Assignment Signal Assignment RX2- RX2+ RXC+ RXC- DDC Input Power(+5V) IDENT_PC DDC Clock (SCL) RX0- DDC Data (SDA) RX0+ Analog Vertical Sync. RX1- RX1+ LS26A33W...
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Audio R 2-2-5 D-SUB RCA Red Separate Green Blue GND (DDC Return) 2-2-4 A/V GND-Red GND-Green RCA Yellow CVBS GND-Blue PC_5V Audio L IDENT_PC RCA White DDC Data Audio R H - Sync RCA Red V - Sync DDC Clock LS26A33W...
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2 Product Specifications 2-3 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. 2-3-1 LCD Panel Mode1 mode LS26A33W...
3 Disassembly and Reassembly 3 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LS26A33W LCD TV. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 3-1 Disassembly Cautions: 1.
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6. Remove 4 screws from the panel BRKT. (Top/Bottom) Disconnect BRKT from the panel. 7. Remove 4 screws from the panel BRKT. (Lelt/Right) Disconnect BRKT from the panel. 3-2 Reassembly Reassembly procedures are in the reverse order of dissasembly procedures. LS26A33W...
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6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 7. To protect aganist shock hazard, use an isolation transform. LS26A33W...
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1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left Arrow Right, Menu, Enter, Number Key(0~9) 2. Function - Control Key : Power, CH +, CH -, VOL +, VOL -, Menu, TV/VIDEO(Enter) 4-2-2 Factory Mode Tree LS26A33W...
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4 Alignments and Adjustments * Unless otherwise specifid, do not adjust data in Factory Mode. * Data may be changed for display improvement. LS26A33W...
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4. As the RF mode is applied with the same vlaues as for VIDEO and S-VIDEO, adjustment can be made in any of RF, VIDEO and S-VIDEO modes. Table 4-1. White Balance Setting Conditions Table 4-2. Color Control Default Vlaue Table 4-3. Color Control Default Vlaue 4-10 LS26A33W...
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* Input signal - VIDEO Mode : Model #1 (750*480 Mode), Pattern #16 - DTV Mode : Model #6 (1280*720 Mode), Pattern #16 - PC Mode : Model #21 (1024*768 Mode), Pattern #16 b) Enter factory color control, confirm the data. LS26A33W 4-11...
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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 4-12 LS26A33W...
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4 Alignments and Adjustments 4-3-3 Option Table * The default settings are most recommended for Option Data. Each data may be adjusted. 4-3-4 PW565 * Below figures are for contrast adjustment of PW565 (IC565). Do not change the data. LS26A33W 4-13...
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4 Alignments and Adjustments 4-3-5 VPC 3230-MAIN * Data may be adjusted. 4-3-6 ADC *Adjust the R(Pr), G(Y), B(Pb) gain and offset to the basic level of DTV and PC Input signals. 4-14 LS26A33W...
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(Varies depending on program update) 4-3-12 Reset * Initializes the data in the MICOM. (Set to default value) Use ‘Reset’ to restore adjustmints made in Factory Mode to the original settings. 4-3-13 T_NPL26PEA_1003 03/30/2004 9:19:40 * Displays the MICOM program version LS26A33W 4-15...
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3. After completing the JIG Cable connection, store Update practice program (hex file 3EA) in new folder. (guiR, romcode, factoryGui). 4. Click FlashupgradNT.exe icon 2 times and execute it. Picture 4-4 5. Select OFull.inf in Flash. (flaher, romcode, guir, factorygui items look in Files To) Picture 4-5 4-16 LS26A33W...
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(Connect only when you want to see PC screen.) 2. Connect with JIG Output (15 pins) and PC Input (PC/DVI 24 pins) terminal. 3. Connect with COM Port1 of PC (9 Pins). 4. Connect 14V 4.5A Adaptor Cable. LS26A33W 4-17...
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4 Alignments and Adjustments Memo 4-18 LS26A33W...
+2.5V_MD1, MDIN_APLL, FT411. MDIN_DPLL appear at C827, Change a main PCB ass'y. C865, C878, C551, C570, (BN41-00482C) C416, C429, C447, C451? Check a other function. (No picture part) A power is supplied to set? Replace a lcd panel. (BN07-00121A) LS26A33W...
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RA512, RA514, RA516,RA518, RA520, (BN41-00482C). RA521? Does the digital data Check a IC515. appear at Change a main PCB ass'y output of FT516~FT520? (BN41-00482C). Check a LVDS cable? Replace a lcd panel? Please, Call to Samsung Co. LTD. (BN07-00121A) LT-P266W...
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5 Troubleshooting WAVEFORMS R,G,B Intput Signal (#54,48,43) Of IC101 R,G,B Output Signal Of IC101 Output Digital Signal of IC602 Output Digital Signal of IC501 Digital Output Data of IC515 LS26A33W...
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Change a main PCB ass'y RA516, (BN41-00482C). RA518, RA520, RA521? Does the digital data Check a IC515. appear at Change a main PCB ass'y output of FT516~FT520? (BN41-00482C). Check a LVDS cable? Replacea lcd panel? Please, Call to Samsung Co. LTD. (BN07-00121A) LS26A33W...
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5 Troubleshooting WAVEFORMS Output Digital Signal of IC602 Output Digital Signal of IC501 Digital Output Data of IC515 Signal of DVI_RX 0~2 (Data) Signal of DVI_RXC (CLK) Digital Output Signal Of IC102 LS26A33W...
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Change a main PCB ass'y RA5116, (BN41-00482C). RA518, RA520 RA521? Does the digital data Check a IC515. appear at Change a main PCB ass'y output of FT516~FT520? (BN41-00482C). Check a LVDS cable? Replacea lcd panel? Please, Call to Samsung Co. LTD. (BN07-00121A) LS26A33W...
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5 Troubleshooting WAVEFORMS Output Digital Signal of IC602 Output Digital Signal of IC501 Digital Output Data of IC515 Tuner_CVBS Output Signal LS26A33W...
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5 Troubleshooting WAVEFORMS Analog Signal (Y,C) to IC201 3230 Y,C_OUT (0:7) Data Digital Output Y,C_OUT (0:7) Data Of IC405 LS26A33W...
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Change a main PCB ass'y RA516, (BN41-00482C). RA518, RA520, RA521? Does the digital data Check a IC515. appear at Change a main PCB ass'y output of FT516~FT520 ? (BN41-00482C). Check a LVDS cable? Replacea lcd panel? Please, Call to Samsung Co. LTD. (BN07-00121A) LS26A33W...
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5 Troubleshooting WAVEFORMS Output Digital Signal of IC602 Output Digital Signal of IC501 Digital Output Data of IC515 Tuner_CVBS Output Signal 5-10 LS26A33W...
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5 Troubleshooting WAVEFORMS Analog Signal (Y,C) to IC201 3230 Y,C_OUT (0:7) Data Digital Output Y,C_OUT (0:7) Data Of IC405 LS26A33W 5-11...
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Output of RA512, RA514, (BN41-00482C). RA516, RA518? Does the digital data Check a IC515. appear at Change a main PCB ass'y Output of FT516~FT520? (BN41-00482C). Check a LVDS cable? Replacea lcd panel? Please, Call to Samsung Co. LTD. (BN07-00121A) 5-12 LS26A33W...
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5 Troubleshooting WAVEFORMS Output Digital Signal of IC602 Output Digital Signal of IC501 Digital Output Data of IC515 Analog Signal (Y,C) to IC201 LS26A33W 5-13...
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5 Troubleshooting WAVEFORMS 3230 Y,C_OUT (0:7) Data Digital Output Y,C_OUT (0:7) Data Of IC405 SVHS_Y,C Input Signal to IC202 5-14 LT-P266W...
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RA512, RA514, (BN41-00482C). RA516, RA518? Does the digital data Check a IC515. appear at Change a main PCB ass'y output of FT516~FT520 ? (BN41-00482C). Check a LVDS cable? Replacea lcd panel? Please, Call to Samsung Co. LTD. (BN07-00121A) LS26A33W 5-15...
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5 Troubleshooting WAVEFORMS R,G,B Output Signal Of IC101 Output Digital Signal of IC602 Output Digital Signal of IC501 Digital Output Data of IC515 Output Signal of IC103 (Y,Pb,Pr) Input Signal (Y,Pb,Pr) to IC105 5-16 LS26A33W...
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Check the DC 8V, 9VS, 9V IC810. Change a main PCB ass'y of IC703, IC701? (BN41-00482C). Check a IC701. Does the signal appear at Change a main PCB ass'y L701 ~L704 ? (BN41-00482C). Replace the speaker ass'y? (BN96-01015A(L), BN96-01016A(R)) LS26A33W 5-17...
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5 Troubleshooting WAVEFORMS The Signal are Inputed to IC703 DC +8V Output WaveForm 5-18 LS26A33W...
6 Exploded View & Parts List 6 Exploded View and Parts List You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ LS26A33W...
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6 Exploded View & Parts List Memo LS26A33W...
7 Electrical Parts List 7 Electrical Parts List You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 7-1 LS26A33WX/XSA Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LS26A33WX/XSA LS26A33W,NF26S,26,LCD-TV,AUSTRALIA M0216 BN90-00486F ASSY STAND;VN32JO S.N.A...
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11 Schematic Diagrams 11 Schematic Diagrams 11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-1 AV INOUT SOUND DELAY Schematic Diagram COMP_V_IN(COMP1) R9783 U109 C777 CN002 C778 C779 R824 R742 FT701 jack9p_2 IDENT_COMP 100nF 100nF 100uF...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-2 ADC DVI VIDEO Schematic Diagram Analog Signal (Y,C) to IC201 R, G , B Out p ut Si g nal (#15, 1 9, 2 1) Of I C 102 3.3V...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-3 CAPTION, TTX DEINTERLACER, SUB_MICOM Schematic Diagram Tuner_CVBS Output Signal 3.3V 3.3V +3.3V_MD MCAD(0:7) MCAD(0:7) FT412 SGM32F1E104-2A MCA(0:19) MCA(0:19) FT406 SGM32F1E104-2A 3.3V C401 C402 C403 C404 C405 C406...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-4 PW565_SCALER Schematic Diagram Output Di g i t al Si g nal of IC602 A3.3VD_1 A3.3VD_2 47uF(2409-001409) Change after check!!! A1.8V A1.8VA A3.3V A3.3VD_1 6.3V FT602 100uF...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-5 POWER SOUND PROCESS Schematic Diagram The Si g nal are Inputed to IC703 POWER CN701 slcon5p R619 12VS 12VS R9740 TP624 IC606 3.6K BD701 1/16W TP701 AP1501-K5A...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-6 DNIE, LVDS Schematic Diagram Output Di g i t al Si g nal of IC501 3.3V 3.3V 5V_1 5V_1 FT510 FT511 C5144 C5102 C5145 C5103 100uF 100nF...
11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-7 MAIN POWER 1_INVERTER Schematic Diagram LS26A33W 11-7...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-8 MAIN POWER 2_PFC Schematic Diagram 11-8 LS26A33W...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-9 MAIN POWER 3_MULTI Schematic Diagram LS26A33W 11-9...
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11 Schematic Diagrams This Document can not be used without Samsung’s authorization. 11-10 SUB POWER Schematic Diagram 11-10 LS26A33W...