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Samsung CK20F1VR5X/BWT Service Manual
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Samsung CK20F1VR5X/BWT Service Manual

Samsung CK20F1VR5X/BWT Service Manual

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COLOR TELEVISION RECEIVER
COLOR TELEVISION RECEIVER
Chassis :
S15A
Model :
CK20F1VR5X/BWT
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CONTENTS
Exploded View and Parts List

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Summary of Contents for Samsung CK20F1VR5X/BWT

  • Page 1: Table Of Contents

    COLOR TELEVISION RECEIVER Chassis : S15A Model : CK20F1VR5X/BWT COLOR TELEVISION RECEIVER CONTENTS Precautions Specifications and IC Data Disassembly and Reassembly Alignment and Adjustment Troubleshooting Exploded View and Parts List Electrical Parts List Block Diagram PCB Layout Diagram Wiring Diagram...
  • Page 2 ELECTRONICS © Samsung Electronics Co., Ltd. FEB.2000 Printed in Korea 3S15A-0149...

  • Page 3: Precautions

    The current measured should the X–ray 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 Make sure that the portion around the serviced part has not been damaged. 8. Always connect a test instrument’s ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument’s ground lead last. Samsung Electronics...
  • Page 6 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 And Ic Data

    Black stripe, 90 degree deflection 21 Inch A51KQJ63X Power Requirements: AC 100~260V, 50/60Hz Antenna Input Impedance: VHF, UHF : Telescopic dipole antenna (75 ohm unbalanced type ) Speaker Impedance 8 ohm, 5W+5W (Dual Type) 16 ohm, 3W (Monitor Type & Dual Type) Samsung Electronics...
  • Page 8 SZM173ER W/O TTX, English/Russian SPM175EE TTX, West : English/German/French/Dutch/Italian/Spanish/Swedish East : English/Czech/Croatian/Romanian/Hungarian/Polish SPM175E TTX, English/French/Swiss SPM175ER TTX, English/Russian/Bulgarian Philips SPM175EP TTX, English/Iranian (TTX) SPM175EA TTX, English/French/Arabian SPM175EG TTX, English/Greek/Yugo IC902 24C04/KS24C040 EEPROM PC801 TCET1108 / LTV817B PHOTO COUPLER Samsung Electronics...
  • Page 9 KS24C040(Pin 8) TRANSISTOR SAW-FILTER TRANSISTOR K2971M K7252M 2SD1651 UPC574J 2SD1650 KSD5072 KSC815-Y KA33V KSD5071 KSA539-Y KSD1711 BC548 KSC5386 KTC9014 E B C TRANSISTOR TDA8133 TDA8356 KSR1012 TDA6101Q KSR1010 KA7630 KSR2010 KTD863-Y E C B Fig. 2-1 Semiconductor Base Diagrams Samsung Electronics...
  • Page 10 MEMO Samsung Electronics...
  • Page 11 Disassembly and reassembly 3. Disassembly and Reassembly 3-1 Back Cover Removal 1. After removing the screws, press the tension rib and pull the cabinet backwards. 2. To reassemble, press the tension rib (see diagram). Samsung Electronics...

  • Page 12: Disassembly And Reassembly

    2. Remove the Anode Cap from the CRT. 3. Remove the main board by pulling it with both hands. Warning: The FBT is charged with high voltage. Before removing the Anode Cap, discharge the voltage through one of the heat sinks on the main board. Samsung Electronics...
  • Page 13 Disassembly and reassembly 3-3 Speaker Removal 1. Remove the speaker by pressing the tension rib. 1. Remove the screws. 2. Remove the speaker by pressing the tension rib. Samsung Electronics...
  • Page 14 Always lift the picture tube by grasping it firmly around the faceplate, (2) Never lift the tube by its neck. (3) Do not scratch the picture tube or apply excessive pressure. Fractures of the glass may cause an implosion. Samsung Electronics...

  • Page 15: Alignment And Adjustment

    “FACTORY” or “Power OFF” keys. 3. Access the Adjustment Mode by pressing the “VOLUME” keys ( Up or Down). The adjust- ment parameters are listed in the accompany- ing table, and selected by pressing the CHAN- NEL keys ( , ). Samsung Electronics...
  • Page 16 0 ~ 63 STEP NTSC SUB COLOR 0 ~ 23 STEP SUB TINT 1 ~ 13 STEP TTX SUB-CONTRAST 0 ~ 63 STEP 16 (Only TTX Model) NOTE : PVS,PVA, PHS, parameters must be aligned using the 50Hz vertical-field rates. Samsung Electronics...
  • Page 17 L (BIT : 0) L (BIT : 0) TDA8842, CK SYSTEM, RCA JACK SYSTEM OSD DISPLAY BYTE 0 : 11 L (BIT : 1) H (BIT : 0) L (BIT : 0) H (BIT : 0) L (BIT : 1) Samsung Electronics...
  • Page 18 PAL : 27KHz (NTSC TABLE) NOT USED (D1 D0 = MUST 00) Function Required : 1. PICTURE OFF (after 15 minutes) during no signal 2. AUDIO MUTE during no signal 3. BLUE SCREEN ON/OFF 4. TIMER CLOCK ON/OFF 5. No CHILD LOCK Samsung Electronics...
  • Page 19 Function Required: 1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE during no signal. 3. No BLUE SCREEN during no RF signal (Blue Screen during AV). 4. No TIMER. 5. No CHILD LOCK. 6. See "Detailed functions of CF". Samsung Electronics...
  • Page 20 MILD MODE CUSTOM MODE MODE MODE 90/50/50/50 100/50/75/50 90/50/75/50 60/50/50/50 90/50/50/50 Function Required : 1. PICTURE OFF (after 15 minutes) during no signal 2. AUDIO MUTE during no signal SCREEN available 3. BLUE 4. TIMER available No CHILD LOCK Samsung Electronics...
  • Page 21 PAL : 27 KHz (NTSC TABLE) MUST : DO D1 = 00 Function Required : 1. PICTURE OFF (after 15 minutes) during no signal 2. AUDIO MUTE during no signal. SCREEN ON/OFF 3. BLUE 4. TIMER (CLOCK ON/OFF) CHILD LOCK ON (always) Samsung Electronics...
  • Page 22 Function Required : 1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE during no signal. BLUE SCREEN ON/OFF. 4. TIMER (CLOCK ON/OFF). 5. No CHILD LOCK → SZM -173ET (16K) : Z90203 WITHOUT LINE STEREO → SZM -173EV (24K) : Z90234 WITH LINE STEREO Samsung Electronics...
  • Page 23 2. Arab (Middle East, Africa) : SPM-175EA : English/French/Arabian Function Required : 1. PICTURE OFF (after 15 minutes) during no signal 2. AUDIO MUTE (during no signal) 3. No BLUE SCREEN 4. No TIMER 5. No CHILD LOCK Samsung Electronics...
  • Page 24 CUSTOM MODE 90/50/50/50 100/50/50/50 75/55/50/50 60/50/50/50 90/55/25/50 Function Required :1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE (during no signal). 3. No BLUE SCREEN. 4. No TIMER (CLOCK /OFF). 5. No CHILD LOCK 4-10 Samsung Electronics...
  • Page 25 7. Do not attempt to connect or disconnect any wires while the TV is turned on. Make sure that the power cord is disconnected before replacing any parts. 8. To protect against shock hazard, use an isola- tion transformer. Samsung Electronics 4-11...
  • Page 26 STANDARD picture. 4. Adjust the Screen VR (on the FBT) so that the voltage on the oscilloscope becomes 130+2.5V (See Fig. 4-1). 130 2.5V 14, 16" :120 2.5V 20, 21" : 130 2.5V Fig. 4-1 4-12 Samsung Electronics...
  • Page 27 2. Adjust RG,BG so that the levels are suitable to each local area. (c) High-Light Adjustment 1. Set SCT to 55 FL (20”. 21”), 65 FL(14”.16”) in the Factory Service Mode with using CA100. See Fig. 4-4 Samsung Electronics 4-13...
  • Page 28 6-Pole Magnet Movement 4-Pole Magnet Movement Fig. 4-5 Center Convergence Adjustment 4-3-9 VCO Adjustment Set the vco data to 80 (Factory Mode). NOTE : For SZM-173EW and SPM-175E (Western Europe remote control), set the VCO data to 1. 4-14 Samsung Electronics...
  • Page 29 4. Fig. 4-7 4. Adjust with PSL (Vertical-Slope) so that the bottom margin of the picture is 4. Fig. 4-8 5. Adjust with PHS (Horizontal Shift) so that the lion-head pattern and CRT centers are aligned. Samsung Electronics 4-15...
  • Page 30 MEMO 4-16 Samsung Electronics...

  • Page 31: Troubleshooting

    5-1 No Video (Raster On, No Sound) Open the IF Pin of Tuner Measure the Check/Replace Voltage of Each Pin TU01, of TU01 Check IC901 Check/Replace Pins 39, 40 IC901, IC201 See "No Sound" See "No Video" (Video OK) (Sound OK) Samsung Electronics...
  • Page 32 Check/Replace Check IC802 IC802 (KA7630) Pin 9 (5V) Check IC901 Check/Replace Pin 16 (4V). IC901 Check IC901 Check/Replace Pin 18 ; Stand-by : 0V IC901, (µ-com). Normal : 5V Check/Replace Check IC201, IC201, Q401, Q402. Pin 40 (H-out) Samsung Electronics...
  • Page 33 Check/Replace Pin 6 (CVBS) IC201 Check IC201 Pins 19, 20, 21 Check/Replace Check IC201 IC201, Q203 pin 27 (Y-IN) Check IC501 Check/Replace on the CRT PCB IC501 Check/Replace R417, R505 (HEATER 6.3Vrms) D503 (CRT G1 pin) CRT, V999 Samsung Electronics...
  • Page 34 R812, R813 Check/Replace Check IC602 IC602 Check/Replace A/V Front assembly. 5-5 No TTX Check/Replace Check IC901 QT02, IC901 Pins 24 Check IC901 Check/Replace Pin 31,32,33,34,35 IC901 Check IC201 Check/Replace Pin 23, 24, 25, 26 IC201 See No Video Samsung Electronics...
  • Page 35 Exploded View & Parts List 6. Exploded View & Parts List 6-1 CK20F1VR5X/BWT Code No Description;Specification Q’ty Remark AA91-10359R ASSY-CABINET,FRONT;-,501F,BK708 RUS NEW AA64-31093T CABINET-FRONT;-,501F,BK708 ML CIS TVI,HI AA64-70127F BADGE-BRAND;AL,SAMSUNG,SILVER,L40,R800,N AA64-40450B WINDOW-REMOCON;-,501F,-,PC,V0,VIOLET,- AA64-10704C KNOB-POWER;-,501F,-,ABS,HB,BLK AA61-60003Q SPRING-CS;-,SUS304,0.5,OD8,H10,N5,-,-,- AA64-40451B INDICATOR-LED;-,33.501F,-,ACRYL,-,CLR,- AA61-40113A STOPPER-PCB;501H,HIPS,NTR,HB,-,- AA65-30105A CLAMP-WIRE;NYLON 66,V2,NTR,15MM,ALL MODE...

  • Page 36: Electrical Parts List

    Electrical Parts List 7. Electrical Parts List 7-1 CK20F1VR5X/BWT Loc. No. Code No. Description ; Specification Remark Loc. No. Code No. Description ; Specification Remark ASSY-PCB,MAIN(OPT) C419 2201-000984 C-CERAMIC,DISC;0.68nF,10%,2kV,Y5P,TP,9x5 C502 2301-000213 C-FILM,PEF;220nF,5%,250V,TP,21.5x11,7.5 C503 2201-002063 C-CERAMIC,DISC;10nF,+80-20%,3KV,Y5V,TP,1 AA94-00762AASSY-PCB,MAIN(OPT);CK20F1VR5X/BWT,S15A,R C504 2401-001232 C-AL;4.7uF,20%,250V,GP,TP,10x12.5,5 C506 2401-000430 C-AL;10uF,20%,250V,GP,TP,10x16mm,5m...
  • Page 37 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM L206 2701-000114 INDUCTOR-AXIAL;10uH,10%,2.5x3.4mm R301 2004-001983 R-METAL(S);2.49Kohm,1%,1/2W,AA,TP,2.4x6. L301 2701-000114 INDUCTOR-AXIAL;10uH,10%,2.5x3.4mm R302 2008-001033 R-FUSIBLE(S);10ohm,5%,2W,AF,TP,3.9x10mm L302 2701-000114 INDUCTOR-AXIAL;10uH,10%,2.5x3.4mm R303 2001-000273 R-CARBON;100KOHM,5%,1/8W,AA,TP,1.8X3.2M L304 2701-000159 INDUCTOR-AXIAL;22uH,10%,4.2x9.8mm R305 2004-001370 R-METAL(S);1.3ohm,1%,1/2W,AA,TP,2.4x6.4m L305 2701-000116 INDUCTOR-AXIAL;10uH,10%,4.2x9.8mm R306 2008-000254 R-FUSIBLE(S);0.68ohm,5%,2W,AF,TP,3.9x10m L306 2701-000115 INDUCTOR-AXIAL;10uH,10%,3x7mm R307 2003-000649 R-METAL OXIDE(S);330ohm,5%,1W,AF,TP,3.3x Samsung Electronics...
  • Page 38 R819 2004-001390 R-METAL(S);1Kohm,2%,1/2W,AA,TP,2.4x6.4mm R820 2008-000299 R-FUSIBLE(S);47ohm,5%,2W,AF,TP,3.9x10mm ASSY-CABINET,FRONT R821 2008-000266 R-FUSIBLE(S);1ohm,5%,2W,AF,TP,3.9x10mm R822 2001-001150 R-CARBON(S);470KOHM,5%,1/2W,AA,TP,2.4X6. AA91-10359R ASSY-CABINET,FRONT;-,501F,BK708 RUS NEW R823 2001-001150 R-CARBON(S);470KOHM,5%,1/2W,AA,TP,2.4X6. AA90-70097WASSY-CABINET;501F,CK20F1VR5X/BWT R824 2001-001134 R-CARBON(S);360ohm,5%,1/2W,AA,TP,2.4x6.4 R825 2003-001040 R-METAL OXIDE(S);47Kohm,5%,2W,AF,TP,3.9x ASPK AA96-10140B ASSY-SPEAKER;-,16OHM,3W,3001-001039,AA39 R901 2001-000832 R-CARBON;510OHM,5%,1/8W,AA,TP,1.8X3.2MM BACK AA64-31094B CABINET-BACK;-,501F,-,HIPS,V2,BLK,-,- R902 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M BADGE AA64-70127F BADGE-BRAND;AL,SAMSUNG,SILVER,L40,R800,N...
  • Page 39 Description ; Specification Remark WINRMC AA64-40450B WINDOW-REMOCON;-,501F,-,PC,V0,VIOLET,- WIRE AA65-30105ACLAMP-WIRE;NYLON 66,V2,NTR,15MM,ALL MODE ASSY-POWER,CORD HOLDCO AA61-20284AHOLDER;-,P-CORD,PP,VO,BLK,KE-002 POWCO AA39-10001GPOWER-CORD;-,KKP-419C,KLCE-2F,2.286M,HOU ASSY-CRT CRTCO AA03-10029WCRT-COLOR;-,A48KRD82X(H),+380mG,20,90de AA27-50004WDEFLECTION-YOKE;-,DSE-1992LL(1H),20’/A48 MAGNCO AA27-00002AMAGNET-CONVERGENCE;-,JH291-SC-OB,29.1MM SPADY AA63-60028ASPACER-DY;NEOPRENE,-,BLK,V0 W12,-,- REMOCON AA59-10107NREMOCON;-,TM59,SS,SZM173EA,24,-,-,L/GR ASSY-ACCESSORY AA42-10001V ANT-ROD;-,3S,620mm,BRN,UL/CSA BATTY 4301-000120 BATTERY-MN;1.5V,-,AA,14.5x50mm,- AA68-11259C MANUAL-USERS;S15A,RUSSIAN,1 COLOR,B5,W/P TRANS AA26-90001C TRANS-MATCHING;-,300ohm/75ohm,PAL,40-890 Samsung Electronics...

  • Page 40: Block Diagram

    TO µ-COM B + 5V HEAT TO CRT 14" FSV-14A001 POWER-CORD DIODE-BRIDGE TO 1CHIP B + 8V D2SB60 TO B + 5V TUNER PRE AMP SAW SWITCHING SWITCH MULTI TO TTX B + 5V REGULATOR U-COM KA7630 16.5V TO TDA8356 HDT B Samsung Electronics...

  • Page 41: Pcb Layout Diagram

    PCB Layout 9. PCB Layout 9-1 PCB Main Loc. No. Loc. No. DIODE DZ705 DZ802 D201 DZ803 D202 DZ804 D204 DZ806 D205 DZ807 D208 DZ808 D209 DZ809 D210 DZ901 D211 DZ902 D212 DZ903 D213 DZ905 D214 DZ907 D401 DZ908 D402 DZ909 D403 D404...

  • Page 42: Wiring Diagram

    SOUND L IN SOUND L OUT SOUND R IN SOUND R OUT CN602 FRONT VIDEO IN L + OUT L - OUT 21 PIN VIDEO IN R - OUT R + OUT 21 PIN AUDIO IN FRONT AUDIO OUT Samsung Electronics 10-1...

  • Page 43: Schematic Diagrams

    @ @ @ @ @ ? ? @ @ @ @ @ ? ) X ? g @ ? ? @ e ? @ ) X g @ ? ? @ e ? @ @ ) : Power Line : Signal Line Samsung Electronics 11-1...
  • Page 44 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ ? : Power Line : Signal Line 11-2 Samsung Electronics...
  • Page 45 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ ? : Power Line : Signal Line Samsung Electronics 11-3...
  • Page 46 : Power Line p a ng h ompon n ad a u y h PRODUCT SAFETY NOT CE n manua Do no d g ad y o h h ough mp op v ng : Signal Line 11-4 Samsung Electronics...
  • Page 47 @ ? e @ ? h f @ @ e ? @ @ ? @ ? e @ ? h f @ @ e ? @ @ ? @ ? e @ ? h f @ @ e ? @ @ ? : Power Line : Signal Line Samsung Electronics 11-5...
  • Page 48 @ @ L ? V 4 @ @ e V 4 @ @ 0 Y e @ @ f @ @ ? @ @ ? ? @ @ ? ? @ @ ? @ @ ? @ @ @ @ @ @ ? V 4 @ @ @ H ? V 4 @ @ 0 Y ? @ @ ? V 4 ) ? V 4 @ @ @ 0 Y e 7 @ H ? e ? V 4 @ @ 0 Y ? h e @ ? : Power Line : Signal Line 11-6 Samsung Electronics...

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