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CT-20D11E, CT-20D11DE

A Board Schematic, Left Portion - Diagrama Eléctrico de la Tarjeta A, Sección Izquierda

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Содержание CT-20R6CE

Страница 1: ...s of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death Chassis CT 20R6E AP359 CT 20R6CE AP359 CT 20D11E EP360 CT 20D11DE EP360 CT 2006SE FP360 ...

Страница 2: ...n as well as implosion The magnetic shield limits the X ray radiation around the bell of the picture tube in addition to the restricting magnetic effects When using a picture tube test jig for service ensure that the jig is capable of handling 35kV without causing X ray radiation Before returning a serviced receiver to the owner the service technician must thoroughly test the unit to ensure that i...

Страница 3: ...ervice Mode 19 Sub Data Adjustment 20 Cut Off Adjustment 20 MTS Adjustment 21 Options Adjustments 21 VCJ Adjustments 22 AFC Adjustments 23 To Check Purity 24 Helpful Hints 24 Instructional Flow Chart for Service Mode 25 Service Adjustments Electronic Control 27 Sub Contrast 27 Tint Color Adjustment 27 Color Temperature Adjustment 28 Sub Brightness 28 Horizontal Centering 29 Vertical Size 29 MTS Ci...

Страница 4: ...il solder flows Do not apply heat for more than 3 seconds How to Replace Flat IC Required Tools 1 Cut the pins of the defective IC with the wire cutters pliers and remove it completely away from the board If the IC is glued to the board apply hot air to complete the removal CAUTION Do not pull or twist the pliers it may damage the soldering pads in the board 2 Using the Soldering Iron and the long...

Страница 5: ...returned to the customer If Voltage is out of tolerance immediate service and correction is required to insure safe operation and to prevent the possibility of premature component failure Equipment needed to check the protection circuit 1 Isolator transformer 2 High voltage meter 3 Short jumper 4 Diode connection jumper Use similar diode than D823 refer to parts list for part No Diode should suppo...

Страница 6: ... tube Supplier SAMSUNG AMEC AMEC SAMSUNG AMEC Comb Filter 2 Dig V A norm V FM Radio X MTS SAP DBX X Built in audio power 1 5W x 2 10 of speakers 2 AI Sound X A V in rear front 2 1 1 Audio Out F FAO V VAO F V S VHS In rear front 1 0 EPJ HPJ MISC HPJ Dimensions mm WxDxH in 515 7x490 5x461 7 20 30x19 31x18 17 Weight kg lbs 18 39 6 20 44 09 18 39 6 19 41 8 Power source V Hz 120 60 Anode voltage 26 60 ...

Страница 7: ...hannels Press to highlight desired features when menus are displayed Also use to select Cable Converter box channels after programming Remote Control Infra red codes the TV AUX CABLE switch must be set in CABLE position Action Button Press to display Main Menu and access On Screen feature and Adjustment Menus TV Video Button Press to select TV or Video Input 1 2 4 5 3 POWER VOLUME CHANNEL ACTION T...

Страница 8: ...nnel Buttons Press to select channels Use with volume buttons to navigate in menus Action Button Press to display Main Menu and access or exit On Screen features and Adjustment Menus Keypad Buttons Press desired channel number to randomly access any channel R Tune Rapid Tune Button Press to switch to the previous channel Recall Button Press to display Time status of Sleep Timer Channel Video mode ...

Страница 9: ...vel Use with Channel buttons to navigate in menus Channel Buttons Press to select channels Use with volume buttons to navigate in menus Action Button Press to display Main Menu and access or exit On Screen features and Adjustment Menus Keypad Buttons Press desired channel number to randomly access any channel R Tune Rapid Tune Button Press to switch to the previous channel Recall Button Press to d...

Страница 10: ...assis rail on the cabinet then place the main chassis be sure is in the rails at both sides then push all the way to the front Figure 5 Chassis Rail Detail C Board CRT Output Plugs into the socket on the CRT neck To release the Focus wire use a flat tool to release the tab in the socket See Fig 6 A pull the wire look up and remove the wire by pulling away the socket B To re insert close the wire l...

Страница 11: ...stic ties fastened to the CRT corner ears To remove Coil cut the plastic ties 4 plastic ties are included in the Degaussing coil installation Kit Refer to Parts List for correct Part No To re mount place the two smaller plastic ties in the upper corners holding the Coil use the two bigger plastic ties to hold the Coil to the lower corners Confirm the Coil is tense and fasten to the CRT body To rem...

Страница 12: ...ure 8 Back Cover Removal 2 Screw at the top edge 1 Screw in each lower corner 1 Screw by the A V Jacks 1 Screw by the Flyback Assembly IMPORTANT Screw number and configuration A V jacks and connectors may vary according to the model ...

Страница 13: ...T by 4 Screws on Corners Secured to Cabinet DY Deflection Yoke CY Convergence Yoke Degaussing Coil Speakers Secured by 2 Screws A Board Main Chassis Tuner S VHS Input A V JACKS Chassis Rail some models C Board CRT Panel Flyback Dag Ground Yoke Wedge IMPORTANT After servicing the receiver remember to dress the cables a shown above ...

Страница 14: ...CJ IC001 IC050 HALF TONE CRT Socket GROUND Q351 Q352 Q353 JK3002 IC002 EEPROM IC552 5V REG IC551 9V REG IC801 VCO Q501 H DRIVE Q551 H OUT RELAY RL801 RED OUT GREEN OUT BLUE OUT TNR001 TUNER IC2301 AUDIO AMP R IC2302 AUDIO AMP L JK3001 REAR A V JACKS F801 FUSE 6 3A 125 250V D801 RECT BRIDGE ...

Страница 15: ...line input Set the Bright and the Picture to Minimum by using the Picture Menu Use cold ground for the lead of the DVM Adjust Picture Menu for normalized video adjustments High Voltage Check 1 Select an active TV channel and confirm that horizontal is in sync 2 Adjust Brightness and Picture using Picture Icon menu so video just disappears 3 Confirm B 130V is within limit 4 Using a high voltage met...

Страница 16: ...lection yoke back and forth on the neck of the CRT until it produces a near white uniform raster Vertical Raster Shift Adjustment Only for Models with Purity Convergence Assembly with 4 Pairs of Rings Apply a green pattern with a horizontal line adjust the Deflection Yoke so that has no tilt then secure it Adjust center line of the pattern with the mechanical center of the CRT this center is deter...

Страница 17: ...n until Purity check white screen appears Observe the screen for uniform white If purity has not been achieved repeat the above procedure Final Convergence Procedure see Fig 17 through Fig 19 Note Vertical size and focus adjustments must be completed prior to performing the convergence adjustment Connect a dot pattern generator to the Receiver The Brightness level should not be higher than necessa...

Страница 18: ...ce As the yoke is tilted horizontally one raster gets larger while the other gets smaller Figure 18 Horizontal Yoke Movement 11 o clock Position Double sided adhesive tape 3 o clock Position 7 o clock Position Converges R B with G Converges R with B Purity Convergence Assembly Clamp Purity Rings Adj on Green Raster Static Convergence Magnets Yoke Positioning Wedges for Dynamic Convergence Figure 1...

Страница 19: ...r Red CHK appears in upper corner 7 Press the Power Button on the Remote Control to select one of Service Adjustment Modes 1 B Service VCJ SUB DATA adjustments 2 C Service VCJ CUT OFF adjustments 3 S Service OPTIONS PICTURE adjustments 4 M Service MTS adjustments 5 P Service VCJ adjustments 6 X Service AFC adjustments 6 CHK Normal operation of CHANNEL and VOLUME Exiting the Service Mode Press the ...

Страница 20: ...55 1 255 0 255 C1 CUT OFF G 0 255 1 255 0 255 C2 CUT OFF B 0 255 1 255 0 255 C3 DRIVE R 0 127 80 C4 DRIVE B 0 127 80 C5 DRIVE G 0 127 80 C6 VERTICAL SIZE 0 255 127 C7 NOT USED N A N A C8 NOT USED N A N A C9 HORIZONTAL CENTER 0 31 16 Ca BEAM LIMIT 0 1 1 Cb HHS 0 7 0 Cc OSD SHIFT FIXED 88 Cd ACL REF FIXED 74 1 Press Channel Up Down on the Remote Control to select one of the available Service Adjustm...

Страница 21: ... 1C KILLER OFF FIXED 20 1D KILLER TIMER FIXED 3 1E ACC THRESH FIXED 17 1F ACC OFF FIXED 7 20 MUTE TIME FIXED 11 MTS Adjustment Adj Range Default Level M0 INPUT LEVEL 0 63 33 M1 HIGH LEVEL SEPARATION 0 63 25 M2 LOW LEVEL SEPARATION 0 15 6 M3 AGC FIXED 0 OPTIONS PICTURE Adjustment Adj Range Default Level S0 SHARPNESS PW FIXED 3 S1 SHARPNESS OW FIXED 3 S2 HALFTONE FIXED 0 S3 TV C FIXED 0 S4 TV Y FIXE...

Страница 22: ... FIXED 30 15 NOISE KILLER TIME FIXED 5 16 NOISE KILLER FIXED 50 17 HV TIMING FIXED 2 VCJ Adjustment Adj Range Default Level P0 FORCE BS FIXED 1 P1 DET ON OFF FIXED 1 P2 ROM SEL FIXED 3 P3 ROM CURVE FIXED 2 P4 BS ON OFF FIXED 1 P5 BS TIME CONST FIXED 5 P6 TH V FIXED 4 P7 TH F1 FIXED 129 P8 TH F1 FIXED 1 P9 TH OFF1 FIXED 35 PA TH F2 FIXED 99 PB TH F2 FIXED 1 PC TH OFF2 FIXED 30 PD TH F3 FIXED 80 PE ...

Страница 23: ...IO3 FIXED 3 AFC Adj Default Level Adjustment Range W FM WO FM X0 AFC T 0 127 83 60 X1 AFC B 0 127 44 29 X2 AFC C 0 127 64 42 X3 CLOCK 0 255 128 128 VCJ Adjustment Adj Range Default Level Note Some adjustments modes may not be available in some models depending on available options IMPORTANT NOTE Always Exit the Service Mode Following Adjustments To Item P00 CH PW To B Items CH ...

Страница 24: ...elect desired field NORMAL SCREEN WHITE SCREEN RED SCREEN GRN SCREEN BLUE SCREEN Figure 21 Purity Check Field Mode Helpful Hints Entering Service Mode Back Open Method 1 While the Receiver is ON and operating in Normal Mode momentarily short test point FA1 TP8 to Cold Ground FA2 TP3 A Board The Receiver enters the Aging Mode Yellow letters CHK appear in the upper left corner of the CRT The Volume ...

Страница 25: ...t to nominal level SERVICE MODE CHK turns red Volume Up Down operate normally Customer Controls are set to nominal level SUB DATA ADJUSTMENTS B ITEMS A QUICK ENTRY TO SERVICE MODE Select CABLE Mode Set SLEEP time for 30 Min Tune to Channel 124 Adjust Volume to minimum Press VOL DOWN On Receiver CH CH EXIT EXIT Figure 22 Flow Chart for Serviceman Mode N Y N Y N Y B IMPORTANT NOTE Always Exit the Se...

Страница 26: ... ON REMOTE POWER ON REMOTE POWER ON REMOTE C ITEMS CUT OFF ADJUSTMENTS ON REMOTE CH CH ON REMOTE CH CH S ITEMS OPTIONS PICTURE ON REMOTE CH CH M ITEMS MTS CIRCUIT ADJUSTMENTS VCJ ADJUSTMENTS P ITEMS ON REMOTE CH CH P ITEMS VCJ ON REMOTE CH CH X ITEMS AFC ADJUSTMENTS Figure 23 Flow Chart for Serviceman Mode Continued USE VOL TOSET THE VALUE USE VOL TO SETTHE VALUE USE VOL TO SET THE VALUE ACTION VO...

Страница 27: ...t Off Remove all connections from chassis Sub Brightness Service DAC B2 Due the characteristics of this chassis Sub Brightness adjustment is no required To obtain a good brightness level in the picture set the Service Register to the default level 127 Perform Final Sub brightness adjustment only if prefer different level of brightness in the picture Tint Color Adjustment Service DACs B1 B0 Prepara...

Страница 28: ...he vertical and see the yellow line Increase C2 volume until line just becomes white mixing Green Red and Blue 12 Press R Tune to open the vertical 13 Confirm that a good gray scale is established by viewing Black White pattern White Balance High Lights 1 Using a Black White pattern and White screen adjust Red Drive C3 and Blue Drive C5 to obtain correct white level on the screen Observe High ligh...

Страница 29: ... be same than B Figure 29 Horizontal Centering 2 Exit Service Mode Vertical Size Service DAC C6 Preparation Connect a monoscope pattern Procedure 1 In the Service Mode select Vertical Size Adjustment DAC C6 and adjust until obtain a perfect round picture Upper and lower section of the pattern may go out of the visible are Figure 30 Vertical Size 2 Exit the Service Mode MTS Circuit Adjustments Ster...

Страница 30: ...t above steps 2 through 5 until the amplitude is at minimum for both signals 7 Exit Service Mode Turn off the set Remove all connections from chassis Clock Adjustment Service DAC X3 Preparation Connect the frequency counter from TP5 TPs port close to tuner to cold ground Note Frequency Counter probe capacitance should be 8pF or less Procedure 1 Measure TP5 for the frequency of the waveform and rec...

Страница 31: ... LEFT RIGHT RIGHT LEFT IN RIGHT IN MPX IN FRONT A V JK3001 REAR A V JK3002 IC001 MPU VCJ M65580MAP10 22 21 LEFT RIGHT LEFT OUT RIGHT OUT 64 LEFT CHANNEL AUDIO AMP 3 6 RIGHT CHANNEL AUDIO AMP 3 6 9 9 TV IN 67 VOL SP SW VOL TV IN VOL SP SW SP CP REAR A V JK3002 LEFT SPEAKER RIGHT SPEAKER 5 5 10 10 LEFT OUT RIGHT OUT A BOARD LEFT OUT RIGHT OUT VAO VAO AUDIO OUT ...

Страница 32: ...1 REAR A V JK3002 IC001 MPU VCJ M65580MAP10 A BOARD 20 EXT 59 6 2 3 9 4 1 8 Q006 Q007 Q008 32 28 30 HALF TONE R OUT G OUT B OUT 5 13 IC050 HALFTONE 3 3V Q053 Q054 Q055 28 FB A11 1 2 3 C1 1 2 3 Q354 R Q355 G Q356 B Q351 R Q352 G Q353 B C BOARD V IDEO IN V IDEO IN 48 49 51 Q050 Q053 Q053 OSD R R G B 22 24 72 JK3001 Y IN C IN SSW ...

Страница 33: ...CAP E 47UF 35V C040 ECA1CM470B CAP E 47UF 16V C041 ECA1HM2R2B CAP E 2 2UF 50V C042 ECJ2VF1H104Z CAP C 1UF Z 50V C043 ECA1CM470B CAP E 47UF 16V C044 ECJ2VC1H471J CAP C 470PF J 50V C045 ECA1HM0R1B CAP E 0 1UF 50V C046 ECJ2VB1C104K CAP C 1UF K 16V C047 ECJ2VC1H220J CAP C 22PF J 50V C048 ECJ2VC1H220J CAP C 22PF J 50V C050 ECA1CM101B CAP E 100UF 16V C051 ECJ2VF1H104Z CAP C 1UF Z 50V C054 ECJ2VF1H103Z C...

Страница 34: ...CAP E 220UF 6 3V C801 ECKWAE472ZED CAP C 4700PF Z 500V C802 ECKWAE472ZED CAP C 4700PF Z 500V C803 ECKWAE472ZED CAP C 4700PF Z 500V C805 EC0S2DA221BB CAP E 220UF 200V C806 ECQM4103KZW CAP P 01UF K 400V C807 ECKR3A821KBP CAP C 820PF K 1KV REF NO PART NO DESCRIPTION C808 ECA1VM101B CAP E 100UF 35V C809 ECKR1H101KB5 CAP C 100PF K 50V C810 ECKR1H471KB5 CAP C 470PF K 50V C812 ECQU2A224MVA CAP P 22UF M 2...

Страница 35: ...04 ECA1EM100B CAP E 10UF 25V CT 20G6E CT 20G6DE CT 2006SE CT 2016SE CT 20D11E CT 20D11DE C2307 ECA1CM102B CAP E 1000UF 16V CT 20G6E CT 20G6DE CT 2006SE CT 2016SE CT 20D11E CT 20D11DE C2309 ECA1HM010B CAP E 1UF 50V CT 20D11CT 20D11DE C2311 ECA1VM102E CAP E 1000UF 35V C2312 ECEA1HN010UB CAP E 1UF 50V C2313 ECA1EM101B CAP E 100UF 25V REF NO PART NO DESCRIPTION C2314 ECA1CM100B CAP E 10UF 16V C2315 EC...

Страница 36: ...E ZENER CT 20D11E CT 20D11DE D2308 MA3110MTX DIODE ZENER CT 20D11E CT 20D11DE D2350 MA4068MTA DIODE ZENER D2351 MA165TA5VT DIODE SWITCHING D2352 MA165TA5VT DIODE SWITCHING CT 20G6DE CT 2016SE D2353 MA165TA5VT DIODE SWITCHING REF NO PART NO DESCRIPTION D2354 MA4091MTA DIODE CT 20G6DE CT 2016SE D3001 MA3110MTX DIODE ZENER D3003 MA3110MTX DIODE ZENER D3004 MA3110MTX DIODE ZENER D3005 MA3110MTX DIODE ...

Страница 37: ... FERRITE BEAD L010 ELESN330JA COIL PEAKING 33UH L011 ELESN330JA COIL PEAKING 33UH L013 EXCELSA35V FERRITE BEAD CT 20D11DE L014 ELESN180KA COIL PEAKING 18UH L015 EXCELSA35T FERRITE BEAD L016 EXCELSA35V FERRITE BEAD L017 TLUABTA100K COIL PEAKING 10UH L018 TLUABTA150K COIL PEAKING 15UH REF NO PART NO DESCRIPTION L090 EXCELSA24T FERRITE BEAD L108 EXCELSA35V FERRITE BEAD L306 TLUABTA2R2K COIL PEAKING 2...

Страница 38: ...6GEYJ681V RES M 680 J 1 10W R019 ERJ6GEYJ681V RES M 680 J 1 10W R021 ERJ6GEYJ101V RES M 100 J 1 10W R022 ERJ6GEYJ101V RES M 100 J 1 10W REF NO PART NO DESCRIPTION R023 ERJ6GEYJ102V RES M 1K J 1 10W R024 ERJ6GEYJ562V RES M 5 6K J 1 10W R028 ERJ6GEYJ472V RES M 4 7K J 1 10W R029 ERJ6GEYJ472V RES M 4 7K J 1 10W R032 ERJ6ENF1002V RES M 10K F 1 10W R033 ERJ6GEYJ222V RES M 2 2K J 1 10W R034 ERJ6GEYJ222V ...

Страница 39: ...M 100 J 1 10W R382 ERJ6GEYJ101V RES M 100 J 1 10W R383 ERJ6GEYJ101V RES M 100 J 1 10W R384 ERJ6ENF2701V RES M 2 7K F 1 10W R385 ERJ6ENF4421V RES M 4 42K F 1 10W R386 ERJ6ENF1201V RES M 1 2K F 1 10W R387 ERJ6ENF2701V RES M 2 7K F 1 10W REF NO PART NO DESCRIPTION R388 ERJ6ENF4421V RES M 4 42K F 1 10W R389 ERJ6ENF1201V RES M 1 2K F 1 10W R390 ERJ6ENF2701V RES M 2 7K F 1 10W R391 ERJ6ENF4421V RES M 4 ...

Страница 40: ... R607 ERJ6GEYJ102V RES M 1K J 1 10W R608 ERJ6GEYJ104V RES M 100K J 1 10W R801 ERF7ZK1R5 RES W 1 5 K 7W R802 ERDS2TJ684T RES C 680K J 1 4W R803 ERG2FJ100H RES M 10K J 1 2W R804 ERG2FJ104H RES M 100K J 2W REF NO PART NO DESCRIPTION R805 ERX2FJR18H RES M 18 J 2W CT 20G6E CT 20R6E CT 20R6CE CT 2006SE CT 20D11E CT 20D11DE R805 ERX2FZJR18H RES M 18 J 2W CT 20G6DE CT 2016SE R806 ERX2FJR56H RES M 56 J 2W ...

Страница 41: ...1 10W R2417 ERJ6GEYJ104V RES M 100K J 1 10W CT 20D11E CT 20D11DE R3001 ERDS2TJ101T RES C 100 J 1 4W R3005 ERJ6GEYJ334V RES M 330K J 1 10W CT 20G6E CT 20G6DE CT 2006SE CT 2016SE CT 20D11E CT 20D11DE R3007 ERDS2TJ151T RES C 150 J 1 4W R3008 ERJ6GEYJ151V RES M 75 0 F 1 10W R3009 ERJ6GEYJ682V RES M 6 8K J 1 10W R3010 ERJ6GEYJ334V RES M 330K J 1 10W REF NO PART NO DESCRIPTION R3011 ERJ6GEYJ682V RES M 6...

Страница 42: ...ties 2 Large plastic ties 2 M015 TXF3A011DB2 ASSY DAG GROUND M016 TXFKY04ESER ASSY CABINET FRONT Panasonic Badge 1 Smoked sheet 1 IR guide 1 Front Cabinet 1 Felt CT 2006SE CT 2016SE REF NO PART NO DESCRIPTION M017 TXFKY06ESER ASSY CABINET FRONT Panasonic Badge 1 IRguide 1 Front Cabinet 1 CT 20G6E CT 20G6DE M018 TXFKY07ESER ASSY CABINET FRONT Panasonic Badge 1 IRguide 1 Front Cabinet 1 CT 20D11E CT...

Страница 43: ...AA0046 TERMINAL FRONT A V CT 20G6E CT 20G6DE CT 2006SE CT 2016SE CT 20D11E CT 20D11DE JK3002 TJB2AA0048 TERMINAL FRONT A V CT 20R6E CT 20R6CE JK3003 TJB2AA0171 TERMINAL S VHS CT 20D11E CT 20D11DE M031 TQB2AA0388 MANUAL OWNERS CT 20G6E CT 20R6E CT 2006SE CT 2016SE CT 20D11E REF NO PART NO DESCRIPTION M032 TQB2AA0396 MANUAL OWNERS CT 20R6CE CT 20G6DE CT 20D11DE M033 TQB2AA7057 REMOTE GUIDE CT 20R6E ...

Страница 44: ...S C 270 J 1 4 CAP P 068UF K 50V RESISTOR TYPE TOLERANCE C Carbon F 1 F Fuse J 5 M Metal Oxide K 10 S Solid M 20 W Wire Wound G 2 CAPACITOR TYPE TOLERANCE C Ceramic C 0 25pF E Electrolytic D 0 5pF P Polyester F 1pF S Styrol J 5 T Tantalum K 10 L 15 M 20 P 10 0 Z 80 20 ...

Страница 45: ...as de alimentación de los Voltajes B 7 Los diagramas eléctricos están sujetos a cambio sin previo aviso 8 El símbolo indica que es una conexión a Tierra Caliente y el símbolo indica conexión a Tierra Fría NOTA Los demas símbolos de componentes incluidos son usados con fines de diseño Schematic Notes 1 Resistors are carbon 1 4W unless noted otherwise 2 Capacitors are ceramic 50V unless noted otherw...

Страница 46: ... 46 CT 20R6E CE A Board Schematic Left Portion Diagrama Eléctrico de la Tarjeta A Sección Izquierda 1 2 3 5 4 10 11 ...

Страница 47: ...ignal generator is connected to the antenna of the Receiver Color bar pattern of 100 IRE white and 7 5 IRE black All Picture and Audio adjustments are set to Normalize TV ANT CABLE Set Up Menu in TV ANT Mode Volume Min TV Video SW TV position Audio Mode Stereo strength and picture c 2 Ground symbol i ground lead connection o Incorrect ground connec result in erroneous readin CAUTION connection of ...

Страница 48: ... 48 CT 2016SE CT 2006SE CT 20G6E DE A Board Schematic Left Portion Diagrama Eléctrico de la Tarjeta A Sección Izquierda 1 2 3 4 5 10 11 6 3A 125V ...

Страница 49: ...tage readings are nominal and may vary 10 on active devices Some voltage reading will vary with signal strength and picture content Supply voltages are nominal 2 Ground symbol indicates ground lead connection of meter Incorrect ground connection will result in erroneous readings CAUTION Incorrect ground connection of the test equipment will result in erroneous readings Medición de Voltajes 1 Medic...

Страница 50: ... 50 CT 20D11E CT 20D11DE A Board Schematic Left Portion Diagrama Eléctrico de la Tarjeta A Sección Izquierda 1 2 3 4 5 11 10 14 15 6 3A 125V ...

Страница 51: ...age readings are nominal and may vary 10 on active devices Some voltage reading will vary with signal strength and picture content Supply voltages are nominal 2 Ground symbol indicates ground lead connection of meter Incorrect ground connection will result in erroneous readings CAUTION Incorrect ground connection of the test equipment will result in erroneous readings Medición de Voltajes 1 Medici...

Страница 52: ...LUYEN CARACTERÍSTICAS ESPECIALES MUY IMPORTANTES PARA LA PROTECCIÓN CONTRA RAYOS X QUEMADURAS Y DESCARGAS ELÉCTRICAS CUANDO SE DE SERVICIO ES IMPORTANTE USAR PARA REEMPLAZO DE COMPONENTES CRITICOS SOLO PARTES ESPECIFICADAS POR EL FABRICANTES LOS COMPONENTES CRITICOS ESTAN SEÑALADOS EN LOS DIAGRAMAS POR EL SIMBOLO ...

Страница 53: ...Un generador de patrones con formato NTSC se conecta a la entrada de la antena Patrón de Barras de Colores con 100 IREs para el Blanco y 7 5 IREs para el Negro Los ajustes de los Menus Picture y Audio se normalizan En el Menú Set Up en la opción ANTENA se selecciona el modo de CABLE El nivel de Volumen se minimiza De los modos TV y Video seleccionar el modo TV Seleccionar modo Estereo del Audio La...

Страница 54: ...za la conexión a la tierra adecuada se obtendrán mediciones equivocadas y podría dañar el equipo de medición Waveform Measurements 1 indicates waveform measurement Measurement can be taken at the best accessible location in common to the indicated point 2 Taken with an NTSC signal generator connected to the antenna terminal NTSC color bar pattern of 8 bars of EIA colors 100 IRE white and 7 5 IRE b...

Страница 55: ... 55 ...

Страница 56: ...Printed in USA K01032593CM0319 ...

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