Samsung HCH551WX Service Manual
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Samsung HCH551WX Service Manual

Samsung HCH551WX Service Manual

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HDTV
Chassis :
Model:
H D T V
APT52A
HCH551WX//XAA
C O N T E N T S
1.
Precautions
2.
Specifications
3.
Alignment and Adjustments
4.
Troubleshooting
5.
Exploded View and Parts List
6.
Electric Parts List
7.
Block Diagrams
Wiring Diagram
8.
9.
Schematic Diagrams

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Summary of Contents for Samsung HCH551WX

  • Page 1 HDTV Chassis : APT52A Model: HCH551WX//XAA H D T V C O N T E N T S Precautions Specifications Alignment and Adjustments Troubleshooting Exploded View and Parts List Electric Parts List Block Diagrams Wiring Diagram Schematic Diagrams...
  • Page 2 ELECTRONICS © Samsung Electronics Co., Ltd. NOV. 1998 Printed in Korea 3APT52A-5501...

  • Page 3: Safety Precautions

    The current measured should the XÐray Protection Specifications Label, and not exceed 0.5 milliamp. Reverse the power- the Product Safety and X-ray Warning Note on plug prongs in the AC outlet and repeat the the service data schematic. test. Samsung Electronics...
  • Page 4 14. Components, parts and wiring that appear to have overheated or that are otherwise damaged should be replaced with parts that meet the original specifications. Always determine the cause of damage or overheat- ing, and correct any potential hazards. Samsung Electronics...

  • Page 5: Servicing Precautions

    (except lamp) are damaged, replace the whole optical engine. 5. Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks). Samsung Electronics...

  • Page 6: Precautions For Electrostatically Sensitive Devices (Esds)

    4. Do not use freon-propelled chemicals. These unpackaged replacement ESDs. Motions such can generate electrical charges that damage as brushing clothes together, or lifting a foot ESDs. from a carpeted floor can generate enough static electricity to damage an ESD. Samsung Electronics...

  • Page 7: Specifications

    Cable Tuner : 75W Unbalanced Coaxial Reverse AGC Consumption 245 Watts Power Requirement 120V/60Hz 15 Watt/CH x 3 Sound Output Dimensions (W x D x H) 1345 x 629 x 1448mm (55 x 25 x 57 incher) Weight 91 kg Samsung Electronics...

  • Page 8: Alignment And Adjustments

    ÒDisplayÓ ® "8" ® Ò2Ó ® Ò4Ó 3-2 Factory/Service Mode 3-2-1 Aging Mode The Aging Mode is activated by pressing the remote-control in the following sequence: Power OFF ® Mute ® 1 ® 8 ® 5 ® Power ON Samsung Electronics...
  • Page 9 2 R Y R 9)) 3 R Y B 8 )) 4 G Y R 8)) 1 SUB BRI 10 4. The Volume keys increase or decrease the adjustment values. 5. Cancel the Adjustment Mode by pressing the ÒMenuÓ key. Samsung Electronics...
  • Page 10 SIG SEL INPUT SIGNAL SELECT 0 ~ 3 FIXED SUB BRI1 SUB BRIGHT ADJUST 0 ~63 W/B ADJUSTMENT SYNC SEL SYNC SEPARATION SIGNAL SELECT 0 ~ 3 FIXED R DRIVE RED OUTPUT SIGNAL DRIVE ADJUST 0 ~63 W/B ADJUSTMENT Samsung Electronics...
  • Page 11 E -W CORNER 0~3.2V ADJUST TRAPEZIUM TRAPEZIUM 0~1.2V ADJUST H-COMPENSATION H-COMPENSATION ADJUSTMENT 1.6~7. 3V 8 FIXED V -F CORR V -F CORR FIXED 4 : 3 R 4:3 R SHIFT FIXED 4 : 3 L 4:3 L SHIFT FIXED Samsung Electronics...
  • Page 12 FIXED INPUT LEVEL ADJUSTMENT 0 ~15 FIXED STEREO ALIGNMENT DATA 0 ~31 FIXED FOR WIDEBAND EXPANDER STEREO ALIGNMENT DATA 0 ~31 FIXED FOR SPECTRAL EXPANDER TIMING CURRENT ALIGNMENT DATA 0 ~ 7 FIXED STEREO ADJUSTMENT ON/OFF ON/OFF FIXED Samsung Electronics...
  • Page 13 Alignment and Adjustments 3-3 Toshiba (TA8859P) Pin Name Waveform Screen Change 52 Pic Height ®Ÿ 53 -Linerity ®Ÿ ®Ÿ 54 V-S Correction ®Ÿ 57 Pic-Width ®Ÿ 58 E-W Parrbola 59 E-W Corner ®Ÿ ®Ÿ 60 Trapezium 60 V-F Correction ®Ÿ Samsung Electronics...

  • Page 14: Other Adjustments

    Channel and Volume keys (Up/Down), and line.) press the Tridimensional Sound key, and then adjust so that the top and bottom margins are equal. (Use the Volume +/- keys.) If necessary, readjust the top and bottom margins using a center magnet. Samsung Electronics...
  • Page 15 5. Press the Menu key to exit. 2. Input a crosshatch pattern. 3. Cover the lenses that are not being adjusted. 4. Connect a convergence jig and read data. 5. Adjust the lens for best focus. (See Fig, 3-1, next page) Samsung Electronics...
  • Page 16 1. Cover the Red and Blue lenses. Lens Color Aberration Change 2. Adjust VR49 (located on the deflection PCB, Orange - Crimson H-Parabola). Blue - Red Purple - Green 3. Balance the left and right sides of the dynamic focus lines. Samsung Electronics...
  • Page 17 3. Input a lion head pattern. convergence drift is seen, repeat the adjustments. 4. Enter the Convergence Mode by pressing the remote-control keys in the following sequence: 20. Press the Exit key to enter the TV mode. Factory ® Mute ® Display. 3-10 Samsung Electronics...

  • Page 18: Beam Alignment

    5. Adjust the Red lens using the same method as with the Green lens. 6. Note: The Blue lens is not adjusted because its focus varies little (VM-coil is installed). 7. After the adjustments are completed, disconnect the jig pin connector. Samsung Electronics 3-11...
  • Page 19 Cancel (Press to revert to FACTORY PLAY the previous values while Factory (Press to call the convergence adjustments are made.) the factory default values.) PAUSE STOP 3-Speed (Press for OSGM Inspection.) 3-SPEED S A M S U N G 3-12 Samsung Electronics...
  • Page 20 Alignment and Adjustments 3-7 Screen Jig 1. Center imposed (HD, NTSC, OSG). 2. NTSC Lionhead Pattern Signal (Horizontal : 6, Vertical : 4.5). (unit = mm) 23.5 45.5 680mm 45.5 19.5 96 32 SCREEN HOR.SIZE=1216mm Samsung Electronics 3-13...
  • Page 21 After selecting the cursor move button, press the F-Cursor Button and B-Cursor Button (See below) 3. Convergence Picture Move Button Use the Channel and Volume keys to move the cursor. (Continuous, Normal) The pattern looks like this: step step step step < HORIZONTAL > < VERTICAL > 3-14 Samsung Electronics...
  • Page 22 7. Cancel (S.STD) Press to revert to the previous data 8. Save (MTS) After the convergence adjustments are completed, press to save data. 9. Exit (S.SEL) After the convergence adjustments are completed, press to exit to TV mode. Samsung Electronics 3-15...
  • Page 23 MEMO 3-16 Samsung Electronics...

  • Page 24: Troubleshooting

    4-2 No Raster (No Picture, Sound Ok) On Power OFF, Open Check the CRT Output Check if R437A is open (210V line resistance) After Power ON, Replace IC471 Check IC471 Pin 9 and Check the high Voltage Outputs Samsung Electronics...
  • Page 25 4-4 No Picture (Power ON, Raster and Sound OK) Abnormal Check CN501 pins 1,3,5 (See the waveforms) Abnormal Check the circuitry near TDA6120Q and IC Abnormal Check Q212,Q213,Q214 Normal Replae Q212, Q213,Q214 Normal Check the circuitry near IC201, IC202 Abnormal Replace IC201,IC202 Check the digital board Samsung Electronics...
  • Page 26 Check the circuitry near of QN21,QN22,QN23 Normal Replace QN21, QN22,QN23 Abnormal Check the circuitry near of ICN05, ICN06, ICN07 Normal Replace ICN05, ICN06, ICN07 Check Abnormal the circuitry near of IC603,604,605,606,607 Normal Replace IC603, Check the Digital Board 604,605,606,607 Samsung Electronics...
  • Page 27 Check the Power Line (Def) High Check the Horizontal Check GT31 H-Drive Check the base of Q486 Oscillation Check the Horizontal Output Check the High Short CN201 pins 5,6 Voltage Output After connecting the wires for CN201, check Vertical Deflection Samsung Electronics...

  • Page 28: Exploded View And Parts List

    AA64 - 31213A CABINET - BACK , TOP - , SPT555JHD , - , HIPS , HB , GRY AA64 - 31214A CABINET - BACK , BOT - , SPT555JHD , - , HIPS , VO , GRY Samsung Electronics...

  • Page 29: Electric Parts List

    Electric Parts List 6. Electric Parts List 6-1 HCH551WX/XAA Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY-PCB,MAIN C167 2401-002594 C-AL;220uF,20%,16V,GP,TP,8x11.5,5 C170 2401-000302 C-AL;100uF,20%,25V,GP,TP,6.3x11,5 C171 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, AA94-10128R ASSY-PCB,MAIN(OPT);SPT-555JHD,APT52A,MVT C172 2401-001840 C-AL;100uF,20%,16V,GP,TP,6.3x11,5 C173 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP,...
  • Page 30 2203-000784 C-CERAMIC,CHIP;330pF,5%,50V,NPO,TP,2012, C664 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, CN01 2401-001363 C-AL;470uF,20%,16V,GP,TP,10x12.5,5 C665 2401-000471 C-AL;10uF,20%,50V,BP,TP,5x11,5mm CN02 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, C666 2203-000361 C-CERAMIC,CHIP;150pF,5%,50V,NPO,TP,2012, CN03 2401-002144 C-AL;47uF,20%,16V,GP,TP,5x11,5 C667 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, CN04 2401-000480 C-AL;10uF,20%,50V,GP,TP,5x11,5 C668 2401-002144 C-AL;47uF,20%,16V,GP,TP,5x11,5 CN05 2203-000938 C-CERAMIC,CHIP;470pF,5%,50V,NPO,TP,2012, C670 2203-000239 C-CERAMIC,CHIP;100pF,5%,50V,NPO,TP,2012, CN06 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, Samsung Electronics...
  • Page 31 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m CN85 2203-002442 C-CERAMIC,CHIP;330nF,+80-20%,25V,Y5V,TP, D709 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m CN901 3711-002642 CONNECTOR-HEADER;BOX,3P,1R,2.5MM,STRAIGH D710 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m CN902 3711-002647 CONNECTOR-HEADER;BOX,8P,1R,2.5mm,STRAIGH D711 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m CN904 3711-002646 CONNECTOR-HEADER;BOX,7P,1R,2.5mm,STRAIGH D712 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m CNW05 AA39-20010J LEAD CONNECTOR-ASSY;-,YFH800-01,S,1P,120 D713 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m CNW201 AA39-20071B LEAD-CONNECTOR,ASSY;-,YBNH025-12,67096-0 D714 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m Samsung Electronics...
  • Page 32 0501-000344 TR-SMALL SIGNAL;KSC1623-G,NPN,200MW,SOT- ICP04 1203-001419 IC-VOLTAGE REGULATOR;4931,TO-252,3P,6.6x QN18 0501-000344 TR-SMALL SIGNAL;KSC1623-G,NPN,200MW,SOT- JK01 3722-000120 JACK-VHS;4P,3.5mm,AG,BLK,NO QN19 0501-000344 TR-SMALL SIGNAL;KSC1623-G,NPN,200MW,SOT- JK02 3722-001305 JACK-RCA;12P,3.2mm,NI,BLK,NO QN20 0501-000344 TR-SMALL SIGNAL;KSC1623-G,NPN,200MW,SOT- JK03 3722-000120 JACK-VHS;4P,3.5mm,AG,BLK,NO QN21 0501-000344 TR-SMALL SIGNAL;KSC1623-G,NPN,200MW,SOT- JK05 3722-000401 JACK-RCA;2P/1C,3.5mm,SN,BLK,#16~22 QN22 0501-000344 TR-SMALL SIGNAL;KSC1623-G,NPN,200MW,SOT- Samsung Electronics...
  • Page 33 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 R236 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 R661 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 R237 2007-000686 R-CHIP;3.3KOHM,5%,1/10W,DA,TP,2012 R700 2001-000037 R-CARBON(S);330OHM,5%,1/2W,AA,TP,- R238 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 R701 2007-000766 R-CHIP;330OHM,5%,1/10W,DA,TP,2012 R239 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 R702 2001-000117 R-CARBON(S);68ohm,5%,1/2W,AA,TP,2.4x6.4m R240 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 R703 2007-000241 R-CHIP;1.5KOHM,5%,1/10W,DA,TP,2012 R246 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 R710 2001-001187 R-CARBON(S);75ohm,5%,1/2W,AA,TP,2.4x6.4m Samsung Electronics...
  • Page 34 2007-000030 R-CHIP;560OHM,5%,1/10W,DA,TP,2012 R785 2001-001187 R-CARBON(S);75ohm,5%,1/2W,AA,TP,2.4x6.4m RN23 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 R786 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 RN24 2007-000024 R-CHIP;1.3KOHM,5%,1/10W,DA,TP,2012 R787 2001-001187 R-CARBON(S);75ohm,5%,1/2W,AA,TP,2.4x6.4m RN25 2007-000766 R-CHIP;330OHM,5%,1/10W,DA,TP,2012 R788 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 RN26 2007-000686 R-CHIP;3.3KOHM,5%,1/10W,DA,TP,2012 R789 2001-001187 R-CARBON(S);75ohm,5%,1/2W,AA,TP,2.4x6.4m RN27 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 R791 2007-000355 R-CHIP;12KOHM,5%,1/10W,DA,TP,2012 RN28 2007-000931 R-CHIP;470OHM,5%,1/10W,DA,TP,2012 Samsung Electronics...
  • Page 35 ASSY-PCB,POWER RP09 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 RP10 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 RP13 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 AA95-10010NASSY-PCB,POWER;SPT-555JHD,APT52A,MVT,-,- RP14 2007-001055 R-CHIP;6.2KOHM,5%,1/10W,DA,TP,2012 RP15 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 C802 2306-000321 C-FILM,MPPF;470nF,5%,275V,TP,-,22.5mm RP17 2007-000964 R-CHIP;5.1KOHM,5%,1/10W,DA,TP,2012 C805 2306-000321 C-FILM,MPPF;470nF,5%,275V,TP,-,22.5mm RP19 2007-000267 R-CHIP;1.8KOHM,5%,1/10W,DA,TP,2012 C806 2201-000332 C-CERAMIC,DISC;2.2nF,20%,250VAC,Y5U,TP,1 RP20 2007-001039 R-CHIP;56KOHM,5%,1/10W,DA,TP,2012 C807 2201-000332 C-CERAMIC,DISC;2.2nF,20%,250VAC,Y5U,TP,1 Samsung Electronics...
  • Page 36 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 CS806 2201-000119 C-CERAMIC,DISC;100nF,+80-20%,50V,Y5V,TP, L812 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 CS807 2201-000119 C-CERAMIC,DISC;100nF,+80-20%,50V,Y5V,TP, L813 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 CS808 2401-002144 C-AL;47uF,20%,16V,GP,TP,5x11,5 L831 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 D801 1405-000152 VARISTOR;560V,2500A,14x8.5mm,TP L832 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 D804 0402-000549 DIODE-BRIDGE;RBV606,600V,6A,-,BK H/SINK L851 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 Samsung Electronics...
  • Page 37 2002-001012 R-COMPOSITION;8.2Mohm,10%,1/2W,AA,TP,3.7 DZ533 0403-000531 DIODE-ZENER;MTZ13B,13V,12.55-13.21V,500m RF802 2008-000294 R-FUSIBLE(S);33ohm,5%,2W,AF,TP,3.9x10mm DZ561 0403-000662 DIODE-ZENER;MTZ3.0B,3.0V,3.01-3.22V,500m RF851 2008-000250 R-FUSIBLE(S);0.27ohm,10%,2W,AA,TP,3.9x10 DZ562 0403-000563 DIODE-ZENER;MTZ9.1B,9.1V,8.57-9.01V,500m RL801 3501-001053 RELAY-POWER;5VDC,530MW,10A,1FORMA,15MS,5 DZ563 0403-000531 DIODE-ZENER;MTZ13B,13V,12.55-13.21V,500m RS801 2001-001187 R-CARBON(S);75ohm,5%,1/2W,AA,TP,2.4x6.4m FOCUS- AA39-20115ALEAD-CONNECTOR,ASSY;-,BUSHING,-,1P,500,3 T801 AA26-20007K TRANS-SWITCHING;-,90~260V,+-28/+-16.5/+- FOCUS- AA39-20115ALEAD-CONNECTOR,ASSY;-,BUSHING,-,1P,500,3 T802 AA26-20007J TRANS-SWITCHING;-,90~260V,110V/22V/15V,U FOCUS- AA39-20115ALEAD-CONNECTOR,ASSY;-,BUSHING,-,1P,500,3 Samsung Electronics...
  • Page 38 R559 2002-001015 R-COMPOSITION;47K,10%,1/2W,AA,TP,3.7x9.0 RY10 2001-000539 R-CARBON;24Kohm,5%,1/8W,AA,TP,1.8x3.2mm R561 2001-000302 R-CARBON;10ohm,5%,1/8W,AA,TP,1.8x3.2mm RY11 2001-000947 R-CARBON;7.5Kohm,5%,1/8W,AA,TP,1.8x3.2m R562 2001-000995 R-CARBON;820OHM,5%,1/8W,AA,TP,- RY12 2003-000471 R-METAL OXIDE(S);10ohm,5%,2W,AA,TP,4x12m R563 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- RY21 2004-000253 R-METAL;11Kohm,1%,1/8W,AA,TP,1.8x3.2mm R564 2001-000628 R-CARBON;300ohm,5%,1/8W,AA,TP,1.8x3.2mm RY22 2004-000218 R-METAL;10Kohm,1%,1/8W,AA,TP,1.8x3.2mm R565 2001-000527 R-CARBON;22ohm,5%,1/8W,AA,TP,1.8x3.2mm RY23 2001-000290 R-CARBON;10KOHM,5%,1/8W,AA,TP,- 6-10 Samsung Electronics...
  • Page 39 1201-000348 IC-POWER AMP;2052,HEPTAWA,7P,-,SINGLE,-, H/SINIK CZ103 2401-000689 C-AL;2200uF,20%,16V,GP,TP,13x25,5 ICZ103 1201-001225 IC-VIDEO AMP;392,SIP,22P,300MIL,THREE,-, CZ104 2401-000302 C-AL;100uF,20%,25V,GP,TP,6.3x11,5 ICZ104 1201-001225 IC-VIDEO AMP;392,SIP,22P,300MIL,THREE,-, CZ105 2401-000689 C-AL;2200uF,20%,16V,GP,TP,13x25,5 LZ101 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 CZ106 2201-000982 C-CERAMIC,DISC;10nF,+80-20%,50V,Y5V,TP,6 LZ102 3301-000287 CORE-FERRITE BEAD;AA,3.5x1x6mm,1500,2400 CZ107 2201-000982 C-CERAMIC,DISC;10nF,+80-20%,50V,Y5V,TP,6 LZ104 2701-000142 INDUCTOR-AXIAL;1uH,10%,2.5x3.4mm Samsung Electronics 6-11...
  • Page 40 2008-000261 R-FUSIBLE(S);150ohm,5%,1W,AF,TP,3.9x10mm RZ177 2001-000331 R-CARBON;12KOHM,5%,1/8W,AA,TP,- RFZ51 2008-000261 R-FUSIBLE(S);150ohm,5%,1W,AF,TP,3.9x10mm RZ178 2001-000221 R-CARBON;1.2KOHM,5%,1/8W,AA,TP,- RFZ52 2008-000261 R-FUSIBLE(S);150ohm,5%,1W,AF,TP,3.9x10mm RZ179 2003-000713 R-METAL OXIDE(S);47ohm,5%,2W,AF,TP,4x12m RFZ53 2008-000261 R-FUSIBLE(S);150ohm,5%,1W,AF,TP,3.9x10mm RZ180 2001-001100 R-CARBON(S);2.7ohm,5%,1/2W,AA,TP,2.4x6.4 RL665 3501-000332 RELAY-POWER;G2R-2-250V5A 12VDC,530MW,5A RZ181 2001-001100 R-CARBON(S);2.7ohm,5%,1/2W,AA,TP,2.4x6.4 RZ101 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- RZ182 2003-000713 R-METAL OXIDE(S);47ohm,5%,2W,AF,TP,4x12m 6-12 Samsung Electronics...
  • Page 41 0402-000546 DIODE-RECTIFIER;TVR10G,400V,1.0A,DO-41,T C416 2201-000234 C-CERAMIC,DISC;150pF,5%,50V,CH,TP,9.5x3, D326 0403-001039 DIODE-ZENER;MA2560,56V,52-60V,1W,DO-41,T C417 2401-001363 C-AL;470uF,20%,16V,GP,TP,10x12.5,5 D328 0402-000546 DIODE-RECTIFIER;TVR10G,400V,1.0A,DO-41,T C418 2401-001840 C-AL;100uF,20%,16V,GP,TP,6.3x11,5 D342 0401-000005 DIODE-SWITCHING;1N4148,75V,300mA,DO-35,T C419 2201-000982 C-CERAMIC,DISC;10nF,+80-20%,50V,Y5V,TP,6 D343 0401-000005 DIODE-SWITCHING;1N4148,75V,300mA,DO-35,T C421 2401-000302 C-AL;100uF,20%,25V,GP,TP,6.3x11,5 D344 0401-000005 DIODE-SWITCHING;1N4148,75V,300mA,DO-35,T C422 2301-000289 C-FILM,PEF;5.6nF,5%,50V,TP,7x6x3,5 D352 0401-000005 DIODE-SWITCHING;1N4148,75V,300mA,DO-35,T Samsung Electronics 6-13...
  • Page 42 R368 2001-001081 R-CARBON(S);160Kohm,5%,1/2W,AA,TP,2.4x6. Q382 0501-000389 TR-SMALL SIGNAL;KSC815,NPN,400mW,TO-92,T R369 2001-001081 R-CARBON(S);160Kohm,5%,1/2W,AA,TP,2.4x6. Q401 0501-000389 TR-SMALL SIGNAL;KSC815,NPN,400mW,TO-92,T R370 2001-001065 R-CARBON(S);110Kohm,5%,1/2W,AA,TP,2.4x6. Q402 0501-000389 TR-SMALL SIGNAL;KSC815,NPN,400mW,TO-92,T R371 2001-001065 R-CARBON(S);110Kohm,5%,1/2W,AA,TP,2.4x6. Q421 0501-000389 TR-SMALL SIGNAL;KSC815,NPN,400mW,TO-92,T R372 2001-001110 R-CARBON(S);240Kohm,5%,1/2W,AA,TP,2.4x6. Q422 0502-001118 TR-POWER;KSC2335,NPN,40W,TO-220,ST,30-6 R373 2001-001110 R-CARBON(S);240Kohm,5%,1/2W,AA,TP,2.4x6. 6-14 Samsung Electronics...
  • Page 43 R444 2003-000586 R-METAL OXIDE(S);22Kohm,5%,2W,AF,TP,4x12 WIRE AA65-30105B CLAMP-WIRE;NYLON 66,V2,NTR,25MM,ALL MODE R444A 2001-001129 R-CARBON(S);330Kohm,5%,1/2W,AA,TP,2.4x6. WIRE AA65-30104B CLAMP-WIRE;NYLON 66,V2,BLK,W2 Z5,ALL MOD R445 2001-000258 R-CARBON;1.8KOHM,5%,1/8W,AA,TP,- ASSY-PCB,DOOR SUB R446 2001-000522 R-CARBON;22Kohm,5%,1/8W,AA,TP,1.8x3.2mm R447 2001-000812 R-CARBON;5.6Kohm,5%,1/8W,AA,TP,1.8x3.2m R448 2001-000411 R-CARBON;18KOHM,5%,1/8W,AA,TP,- AA95-90029AASSY-PCB,DOOR SUB;-,SPT-555JHD,APT52A,-, R449 2001-000660 R-CARBON;33Kohm,5%,1/8W,AA,TP,1.8x3.2mm Samsung Electronics 6-15...
  • Page 44 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC215 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC314 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC216 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC315 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC217 2203-000239 C-CERAMIC,CHIP;100pF,5%,50V,NPO,TP,2012, DC316 2203-000239 C-CERAMIC,CHIP;100pF,5%,50V,NPO,TP,2012, DC218 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC317 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC219 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC318 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC220 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC319 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, 6-16 Samsung Electronics...
  • Page 45 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC412 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC708 2203-000239 C-CERAMIC,CHIP;100pF,5%,50V,NPO,TP,2012, DC413 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC709 2203-000239 C-CERAMIC,CHIP;100pF,5%,50V,NPO,TP,2012, DC414 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC710 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC415 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC900 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC416 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC902 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC417 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, DC903 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, Samsung Electronics 6-17...
  • Page 46 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DE725 2901-001120 FILTER-EMI SMD;25V,100mA,-,-,3.2x1.6x1,T DR122 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DE726 2901-001119 FILTER-EMI SMD;25V,100mA,-,-,3.2x1.6x1,T DR123 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 DE727 2901-001119 FILTER-EMI SMD;25V,100mA,-,-,3.2x1.6x1,T DR124 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 DE728 2901-001119 FILTER-EMI SMD;25V,100mA,-,-,3.2x1.6x1,T DR125 2007-000781 R-CHIP;33OHM,5%,1/10W,DA,TP,2012 DE729 2901-001119 FILTER-EMI SMD;25V,100mA,-,-,3.2x1.6x1,T DR126 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 6-18 Samsung Electronics...
  • Page 47 DX101 2806-001178 OSCILLATOR-VCXO;43.048951MHz,25ppm,2TTL, DR903 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DX331 2801-003316 CRYSTAL-UNIT;24.576MHZ,30PPM,28-AAM,20PF DR904 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DX500 2806-001177 OSCILLATOR-VCXO;27MHz,25ppm,2TTL,ST,5V,2 DR905 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DX900 2804-001229 OSCILLATOR-CLOCK;32MHz,50ppm,10TTL & CMO DR906 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 3722-000143 JACK-PHONE;1P(VER),3.4mm,AG,BLK,NO DR907 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DR908 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 DR909 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 Samsung Electronics 6-19...
  • Page 48 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 C173 2401-002235 C-AL;10uF,20%,16V,GP,TP,5x11mm,5mm R118 2001-001140 R-CARBON(S);39ohm,5%,1/2W,AA,TP,2.4x6.4m C174 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, R119 2007-000686 R-CHIP;3.3KOHM,5%,1/10W,DA,TP,2012 C175 2401-002235 C-AL;10uF,20%,16V,GP,TP,5x11mm,5mm R120 2007-001177 R-CHIP;8.2KOHM,5%,1/10W,DA,TP,2012 C177 2401-002462 C-AL;33uF,20%,16V,GP,TP,5x11,5 R121 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 C178 2203-000260 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,2012, R123 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 C181 2401-002235 C-AL;10uF,20%,16V,GP,TP,5x11mm,5mm R124 2007-001043 R-CHIP;56ohm,5%,1/10W,DA,TP,2012 6-20 Samsung Electronics...
  • Page 49 2001-001043 R-CARBON(S);0ohm,5%,1/2W,AA,TP,2.4x6.4mm LL803 AA29-30002P FILTER-LINE NOISE;-,4mH,5A,AC100~260V,35 R146 2007-000321 R-CHIP;110OHM,5%,1/10W,DA,TP,2012 R147 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 ASSY-PCB,COMB FILTER R148 2007-000710 R-CHIP;3.9KOHM,5%,1/10W,DA,TP,2012 R149 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 AA95-90035MASSY-PCB,COMB FILTER;-,HCH551WX/XAA,APT5 R150 2007-000964 R-CHIP;5.1KOHM,5%,1/10W,DA,TP,2012 R151 2007-000328 R-CHIP;11KOHM,5%,1/10W,DA,TP,2012 CD10 2401-001496 C-AL;47uF,20%,16V,GP,TP,5x7,5 R152 2007-000518 R-CHIP;2.7KOHM,5%,1/10W,DA,TP,2012 CD11 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, R154 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 CD12 2401-002464 C-AL;47uF,20%,16V,BP,TP,8x11.5,5...
  • Page 50 2203-000260 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,2012, RD34 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 C126 2203-000260 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,2012, RD35 2007-000572 R-CHIP;220OHM,5%,1/10W,DA,TP,2012 C127 2203-001680 C-CERAMIC,CHIP;68nF,20%,50V,Y5V,TP,2012, RD36 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 C128 2203-001680 C-CERAMIC,CHIP;68nF,20%,50V,Y5V,TP,2012, RD37 2007-000572 R-CHIP;220OHM,5%,1/10W,DA,TP,2012 C129 2203-001680 C-CERAMIC,CHIP;68nF,20%,50V,Y5V,TP,2012, RD40 2007-000493 R-CHIP;2.2KOHM,5%,1/10W,DA,TP,2012 C130 2203-001680 C-CERAMIC,CHIP;68nF,20%,50V,Y5V,TP,2012, RD41 2007-000931 R-CHIP;470OHM,5%,1/10W,DA,TP,2012 C131 2404-000275 C-TA,CHIP;100uF,10%,10V,-,TP,7343,7.3mm 6-22 Samsung Electronics...
  • Page 51 2203-000683 C-CERAMIC,CHIP;27pF,5%,50V,NPO,TP,2012,- L111 2703-000395 INDUCTOR-SMD;470uH,5%,4.5x3.2x2.2mm C203 2203-000429 C-CERAMIC,CHIP;18pF,5%,50V,NPO,TP,2012,- L112 2703-000395 INDUCTOR-SMD;470uH,5%,4.5x3.2x2.2mm C207 2203-001680 C-CERAMIC,CHIP;68nF,20%,50V,Y5V,TP,2012, L113 2703-000395 INDUCTOR-SMD;470uH,5%,4.5x3.2x2.2mm C208 2203-000444 C-CERAMIC,CHIP;1nF,10%,50V,X7R,TP,2012,- L121 2901-000297 FILTER-EMI ON BOARD;-,3A,-,-,3.5x5,TP,- C209 2203-000260 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,2012, L123 2703-000392 INDUCTOR-SMD;10uH,5%,4.5x3.2x2.2mm C210 2404-000123 C-TA,CHIP;10uF,20%,16V,-,TP,6032,2.9mm L124 2703-000392 INDUCTOR-SMD;10uH,5%,4.5x3.2x2.2mm Samsung Electronics 6-23...
  • Page 52 2007-000981 R-CHIP;5.6KOHM,5%,1/10W,DA,TP,2012 R118 2007-000830 R-CHIP;39KOHM,5%,1/10W,DA,TP,2012 R227 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 R119 2007-000586 R-CHIP;22KOHM,5%,1/10W,DA,TP,2012 R228 2007-000030 R-CHIP;560OHM,5%,1/10W,DA,TP,2012 R120 2007-000415 R-CHIP;15OHM,5%,1/10W,DA,TP,2012 R229 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 R121 2007-001071 R-CHIP;6.8KOHM,5%,1/10W,DA,TP,2012 R230 2007-000981 R-CHIP;5.6KOHM,5%,1/10W,DA,TP,2012 R122 2007-000586 R-CHIP;22KOHM,5%,1/10W,DA,TP,2012 R231 2007-000872 R-CHIP;4.7KOHM,5%,1/10W,DA,TP,2012 R123 2007-000282 R-CHIP;100KOHM,5%,1/10W,DA,TP,2012 R232 2007-000030 R-CHIP;560OHM,5%,1/10W,DA,TP,2012 6-24 Samsung Electronics...
  • Page 53 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 AA64-50253ADOOR-AL;-,SVP-555JHD,T1.0,AL,-,TITAN,- R297 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 AA64-50249ADOOR-CASE;-,-,-,ABS,HB,BLACK,-,- R310 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 AA61-40112AHINGE-DOOR;-,ABS,HB,BLACK,-,- R311 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 6003-000333 SCREW-TAPTITE;RH,+,2S,M3,L10,ZPC(YEL),SW R312 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 AA61-60115ASPRING-PLATE;PS,SK-5,-,-,-,-,T0.25,SPT55 R313 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 R314 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 R315 2007-000290 R-CHIP;100OHM,5%,1/10W,DA,TP,2012 R317 2007-000029 R-CHIP;0OHM,5%,1/10W,DA,TP,2012 R320 2007-000029 R-CHIP;0OHM,5%,1/10W,DA,TP,2012 R321 2007-000029 R-CHIP;0OHM,5%,1/10W,DA,TP,2012 Samsung Electronics 6-25...
  • Page 54 6003-001023 SCREW-TAPTITE;RWH,+,B,M3,L10,ZPC(YEL),SW FOCUS+ 6003-001023 SCREW-TAPTITE;RWH,+,B,M3,L10,ZPC(YEL),SW HV+BHV 6003-001023 SCREW-TAPTITE;RWH,+,B,M3,L10,ZPC(YEL),SW CBT+CW AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A CF+CW AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A CM+CW AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A DOOR+C AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A LF+CW AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A CBB+CW AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A CW+CW AA60-10050WSCREW-WOOD;W/H,+,M4,20,ZPC(BLK),SWRCH18A AA63-60119ASPACER-COVER,BRACKET;FELT,T0.5,BLK,630X3 AA67-70052ASUN-SCREEN;DNP,55W,H/C , A/S,PMMA,T=82%, ASSY-CABINET,BOTTOM AA91-10404AASSY-CABINET,BOTTOM;-,HCH551W,JERSEY SP0 AA64-31212ACABINET-FRONT,BOT;-,SPT555JHD,SACHUL,HIP AA61-20295AHOLDER-PIN;-,SPT555JHD,ABS,HB,BLK,- AA60-40009APIN-MASK;-,-,-,-,NYLON66,- ASSY-CABINET,WOOD AA91-10405AASSY-CABINET,WOOD;-,SPT555JHD,WOOD,-,- AA61-40019ABOSS-WOOD;-,ABS,V0,GRY,-,- AA61-11003ABRACKET-BACK;-,PROJ,SECC,T1.0,-,-,- AA61-10247ABRACKET-FOCUS;-,S46DS,SECC,T1.0,-,-,- AA61-10387ABRACKET-GRILLE;-,SVP-462J,SECC-1,T0.5,-, 6-26 Samsung Electronics...

  • Page 55: Block Diagram

    Tone Ctrl Switching TA8851AN TDA8425 Audio Amp STR-6709 STR-6709 Audio Amp Convergence Chroma STK400-020 Module TDA9141 RECTIFIER 3D-Comb EXT. Y/R-Y/B-Y 5V/0.2A Stand-By RBV-1506 EXT. A/V INPUT Speaker mPD6488 H,V-BLK SPDIF INPUT Video : 3, S-video : 3 R,L,Cent Samsung Electronics...
  • Page 56 Tone Ctrl VOL Ctrl CS4226 TDA8425 L/R/C/LS/RS/W Audio Data 0/1/2 SSM2160 AMP BOARD Digital Board LS/RS/W External Digital Audio IN TO OUTPUT JACK Digital Audio Out R.G.B R/G/B CRT BOARD Interface CXA2011Q 2H/2V SYNC Y/U/V R/G/B R,G,B Controller CXA1839Q Samsung Electronics...
  • Page 57 Q472,T451 Q473 H-Blk POWER 12v Regulator IC421 TO HV CRT PWM Output Sync Lock TO FOCUS R487,C487 Q485,T481 TO ABL T444 X-Ray Pro PWM Generator Q483,IC481 IC471 : DL494C Error Feedback PCB : SIZE 330 x 245MM R471,VR471 Samsung Electronics...
  • Page 58 STAND - BY CONV SWITCHING IC STR-6709 7806 CONV LINE FILTER 7V / 0.2A 1mH/5A PHOTO - COUPLER ERROR AMP SE012N PS2561 - 8.5V/-0.2A 7805 STAND BY P i = 3 2 0 W AC120V ONLY / MORE THAN 8A Samsung Electronics...
  • Page 59 VM COIL B +130V VM OUT VCC 13.5V SOUND RELAY, VM conv module +5V REG IC SI3050C +6.5V conv module -5V REG IC KA7806 -7.5V conv amp +30V POWER SUPPLY -30V conv amp sound amp +15V sound amp -15V Samsung Electronics...
  • Page 60 Y/C Separation Y Noise Reduce Bust-Lock 8bit Vertical peaking TMS4C1060BDJ Clock Generator 9bit 1 Mbit(4x256K) Field Memory DATA CLOCK Y OUT L.P.F 2Vp-p 3.3V Amp. Regulator 6MHz VIDEO IN 2Vp-p L.P.F Amp. 6MHz C OUT B.P.F Amp. Regulator 3.58MHz Samsung Electronics...

  • Page 61: Wiring Diagram

    CN904 CN204 CN902 CN604 CN205 POWER CN602 SPEAKER MAIN CN805 CN202 CN603 CONVERGENCE AMP , CN601 CN402 SOUND AMP CN804 CN403 CN802 CN404 CN803 CN206 CNZ01 CNZ02 HV- block CN201 DEFLECTION FOCUS- CONVERGENCE block MODULE CN502 CN503 CN401 Samsung Electronics...
  • Page 62 MEMO Samsung Electronics...

  • Page 63: Schematic Diagrams

    Schematic Diagrams 9. Schematic Diagrams 9-1 MAIN (1/4) IF CVBS OUT Cable Tuner IF DG Tuner IF : Power Line : Signal Line Samsung Electronics...
  • Page 64 Schematic Diagrams 9-2 MAIN 2/4 D-Bd B-out D-Bd R-out D-Bd G-out SSCP VM Y Out : Power Line : Signal Line Samsung Electronics...
  • Page 65 Schematic Diagrams 9-3 MAIN 3/4 TP10 3D-COMB Input Video TP13 TP12 TP11 TP11 3d COMB Y-out TP10 3D-COMB C-out TP12 TP14 TP13 V-Y-out TP14 SYNC : Power Line : Signal Line Samsung Electronics...
  • Page 66 TDA9141 #14 U out TP18 TP22 TP17 TP18 TP15 TP16 TP19,20 Panorama #43 TP23 TP21 Panorama - Y Panorama - V TP22 TP23 Panorama - U TP24 TP24 NTSC-Y out TP25 TP26 : Power Line : Signal Line Samsung Electronics...
  • Page 67 Schematic Diagrams 9-5 3DCOMB1 : Power Line : Signal Line Samsung Electronics...
  • Page 68 Schematic Diagrams 9-6 IF_MODULE : Power Line : Signal Line Samsung Electronics...
  • Page 69 TS23 H-SYNC TP31 TP29 TS47 VM OUTPUT TP30 TP30 TS12 RV TP32 TP31 TS10 RH TP27 TP28 TP33 TP34 TP32 TS15 GH TP35 TP33 TS17 GV TP34 TS19 BH TP29 TP35 TS20 BV : Power Line : Signal Line Samsung Electronics...
  • Page 70 TP37 TP35 TP36 TP36 DEF TS2 2V-SY TP37 DEF TS3 V-BLK TP43 Q422 C H-DRIVE TP42 TP40 TP41 TP39 TP44 DEF TS9 H-OUT DEF TS10 E/W OUT TP45 TP46 DEF TS14 DE-OUT : Power Line : Signal Line Samsung Electronics...
  • Page 71 Schematic Diagrams 9-9 CRT TP51 CRT R-IN TP47 TP48 CRT G-IN TP49 DRT B-IN TP52 TP47 TP48 TP50 TP49 TP51 TP50 TP52 TP53 TP53 : Power Line : Signal Line Samsung Electronics...
  • Page 72 TP55 TP54 TP57 IC802 #3 TP58 IC802 #4 TP59 IC802 #5 TP60 IC802 #6 TP61 IC802 #7 TP56 TP57 IC802 #8 TP62 TP58 TP59 TP60 TP63 IC802 #9 TP61 TP63 TP62 : Power Line : Signal Line 9-10 Samsung Electronics...
  • Page 73 Schematic Diagrams 9-11 CONTROL & SUB : Power Line Samsung Electronics 9-11...

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