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Panasonic CT2017F - 20" COLOR TV, Service Manual, Page: 34 / 36

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Panasonic CT2017F - 20

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A-C Boards

Summary of Contents for CT2017F - 20" COLOR TV

Page 1: ...dvise non technical individuals of potential dangers in attempting to service a product Productspoweredbyelectricityshouldbeservicedorrepairedonlybyexperiencedprofessionaltechnicians Anyattempttoservice or repair the product or products dealt with in this Service Manual by anyone else could result in serious injury or death Chassis CT 2017F AP391 Model ORDER NO MTNC020410A1 B1 Sim plified This Sim...

Page 2: ...be viewing area against X ray radiation 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 tho...

Page 3: ...ally the melting point is 50 70 F 30 40 C higher Please use a high temperature soldering iron and set it to 700 20 F 370 10 C Pb free solder will tend to splash when heated too high about 1100 F or 600 C If you must use Pb solder please completely remove all of the Pb free solder on the pins or solder area before applying Pb solder If this is not practical be sure to heat the Pb free solder until ...

Page 4: ...ure Table 7 Location of Controls Receiver Receiver Front Control Panel 8 Disassembly for Service 9 Main Components Location 11 Audio Signal Path Block Diagram 13 Video Signal Path Block Diagram 14 Parts List 16 Schematic Notes 22 Schematics A Board 24 C Board 32 Voltages and Waveforms Voltages A C Boards 29 Waveforms 31 Layouts A C Boards 34 ...

Page 5: ...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 may damage the soldering pads in the board 2 Using the Soldering Iron and the long no...

Page 6: ...test must be performed as final check before the Receiver is 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...

Page 7: ...e tube Type PANABLACK Picture tube Supplier SAMSUNG Comb Filter 2 DIG V A norm V MTS SAP DBX X Built in audio power 1 5Wx2 10 of speakers 2 AI Sound X A V in rear front 1 1 1 EPJ HPJ MISC HPJ Dimensions mm WxDxH in 515 7x490 5x461 7 20 30x19 31x18 17 Weight kg lbs 20 44 09 Power source V Hz 120 60 Anode voltage 26 6 1 25 kV Video input jack 1Vp p 75Ω phono Audio input jack 500mV rms 47KΩ A Board T...

Page 8: ...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...

Page 9: ...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 3 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 4 Focus Wire Release on page 9 A pull the wire look up and remove the wire by pulling away the socket B ...

Page 10: ... 10 Back Cover Disassembly Figure 5 Back Cover Removal 2 Screws at the top edge 1 Screw in each lower corner 1 Screw by the A V Jacks 1 Screw by the Flyback Assembly ...

Page 11: ...ar View ANODE HIGH VOLTAGE CRT 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 A V JACKS C Board CRT Panel Flyback Dag Ground Yoke Wedge ...

Page 12: ...U VCJ 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 IC2302 AUDIO AMP L IC2301 AUDIO AMP R JK3001 REAR A V JACKS F801 FUSE 6 3A 125 250V D801 RECT BRIDGE ...

Page 13: ...LS 14 2 3 A V 1 LEFT LEFT RIGHT RIGHT LEFT IN RIGHT IN MPX IN FRONT A JK3001 REAR A 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 LEFT SPEAKER RIGHT SPEAKER 10 10 LEFT OUT RIGHT OUT A BOARD LEFT OUT RIGHT OUT ...

Page 14: ...N FRONT V JK3001 REAR 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 ...

Page 15: ... 15 Notes ...

Page 16: ...1B CAP E 100UF 6 3V C350 ECA1CM101B CAP E 100UF 16V C351 TCJ2VB1H391K CAP C 390PF K 50V C352 TCJ2VB1H391K CAP C 390PF K 50V C353 TCJ2VB1H471K CAP C 470PF K 50V C354 ECKW3D102KBN CAP C 001UF K 2KVDC C357 EEANA1E1R0B CAP E 1 0UF 25V C361 TCJ2VC1H151J CAP C 150PF J 50V C362 TCJ2VC1H151J CAP C 150PF J 50V C363 TCJ2VC1H151J CAP C 150PF J 50V C451 ECA1CHG470B CAP E 47UF 16V C452 ECSF1EE105VB CAP E 1 0UF...

Page 17: ... C2317 ECA1CM102B CAP E 1000UF 16V C2320 ECA1CM100B CAP E 10UF 16V C2330 ECA1CM100B CAP E 10UF 16V C2350 ECA1HM100B CAP E 10UF 50V C3001 ECA1HM0R1B CAP E 0 1UF 50V C3012 ECA1HM010B CAP E 1UF 50V C3018 ECA1HM010B CAP E 1UF 50V DIODES D002 MA165TA5VT DIODE SWITCHING D006 MA4330HTA DIODE D052 MA4068MTA DIODE ZENER D053 MA4056MTA DIODE D055 MA4056MTA DIODE D451 ERA15 01V3 DIODE RECTIFIER REF NO PART N...

Page 18: ...FERRITE BEAD L805 TALL08T220KA TRANSFORMER LINE FILTER L2305 EXCELSA35V FERRITE BEAD L2308 EXCELSA24V FERRITE BEAD L2350 ELESN4R7JA COIL PEAKING 4 7UH TRANSISTORS Q001 2SD601ARTX TRANSISTOR Q006 2SB709ARTX TRANSISTOR REF NO PART NO DESCRIPTION Q007 2SB709ARTX TRANSISTOR Q008 2SB709ARTX TRANSISTOR Q009 2SC1473A TRANSISTOR Q050 2SB709ARTX TRANSISTOR Q051 2SB709ARTX TRANSISTOR Q052 2SB709ARTX TRANSIS...

Page 19: ...J6ENF5100V RES M 510 F 1 10W R361 ERJ6ENF5100V RES M 510 F 1 10W R362 ERJ6ENF5100V RES M 510 F 1 10W R363 ERJ6GEYJ101V RES M 100 J 1 10W R364 ERJ6GEYJ101V RES M 100 J 1 10W R365 ERJ6GEYJ101V RES M 100 J 1 10W REF NO PART NO DESCRIPTION R381 ERJ6GEYJ101V RES 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 R...

Page 20: ...EYJ123V RES M 12K J 1 10W R2355 ERJ6GEYJ222V RES M 2 2K J 1 10W R2356 ERJ6GEYJ101V RES M 100 J 1 10W R2357 ERJ6GEYJ472V RES M 4 7K J 1 10W R2365 ERDS2TJ102T RES C 1K J 1 4W R2370 ERJ6GEYJ103V RES M 10K J 1 10W R3001 ERDS2TJ101T RES C 100 J 1 4W R3005 ERJ6GEYJ334V RES M 330K J 1 10W R3007 ERJ6GEYJ151V RES M 150 J 1 10W R3008 ERJ6GEYJ151V RES M 150 J 1 10W R3009 ERJ6GEYJ682V RES M 6 8K J 1 10W R3010...

Page 21: ... RES 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 ...

Page 22: ... shown on waveform number indicates Hot ground lead connection of the Oscilloscope CAUTION Incorrect ground connection of the test equipment will result in erroneous readings 3 VOLTAGE MEASUREMENTS 1 Voltage measurement AC input to the Receiver is 120V NTSC HD 1125i 525P when applicable signal generator is connected to the antenna of the Receiver Color bar pattern of 100 IRE white and 7 5 IRE blac...

Page 23: ... tierra que se utiliza en la conexión del medidor PRECAUCION SI no se utiliza la conexión a la tierra adecuada se obtendrán mediciones equivocadas y podría dañar el equipo de medición MEDICIÓN DE FORMAS DE ONDA 1 Un símbolo como indica el punto para medir una señal La medición puede hacerse en el punto con mayor accesibilidad siempre que sea común al indicado 2 Se midieron utilizando un generador ...

Page 24: ... 24 A Board ...

Page 25: ... 25 A Board ...

Page 26: ... 26 A Board ...

Page 27: ... 27 A Board ...

Page 28: ... 28 TNP2AH040DH A A Board ...

Page 29: ...0 00 3 10 0 00 3 40 0 00 0 43 N C 0 00 N C 1 69 0 00 4 96 4 97 4 97 0 00 4 95 2 05 0 18 2 17 0 00 2 17 2 11 IC050 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2 78 3 27 3 27 2 87 0 00 0 00 GND 2 87 3 27 N C N C N C 0 00 4 97 IC451 1 2 3 4 5 6 7 8 9 10 11 12 13 8 23 8 68 4 11 4 17 GND 3 98 3 98 24 35 1 77 1 31 GND 13 96 24 72 IC002 1 2 3 4 5 6 7 8 GND GND GND GND 3 39 3 10 GND 4 98 IC005 1 2 3 4 5 4 98 GND 4 9...

Page 30: ...7 2 87 GND 3 52 Q052 4 96 GND 2 87 Q092 8 92 2 47 4 97 Q505 2 44 4 96 2 31 Q820 130 80 0 00 131 10 Q008 2 87 GND 3 51 Q053 0 00 4 98 2 78 Q451 0 60 0 00 GND Q520 1 74 4 96 1 65 Q830 130 20 130 00 130 80 Q009 0 58 0 00 GND Q054 0 00 4 98 2 87 Q452 0 00 2 48 GND Q551 0 00 24 02 GND Q2350 5 20 GND 0 70 Q352 6 06 156 40 5 58 Q353 6 30 156 70 5 55 Q354 3 40 6 31 2 83 B C E Q355 3 52 6 06 2 93 Q356 3 50...

Page 31: ...l IC001 PIN 35 ADC OSC 6 9 28 Vp p 5ms IC451 PIN 2 VERT IN 10 5 28 Vp p 20µs IC001 PIN 44 H PULSE 14 276 0 Vp p 5µs IC801 PIN 1 3 1 6 Vp p 20µs R OUT A11 1 7 1 46 Vp p 5ms IC451 PIN 7 DRIVE 11 3 2 Vp p 20µs IC001 PIN 43 FB PULSE 15 2 90 Vp p 5µs IC801 PIN 5 4 1 4 Vp p 20µs G OUT A11 2 8 48 0 Vp p 5ms IC451 PIN 12 VERT OUT 12 172 0 Vp p 20µs Q501 Collector H DRIVE A Board ...

Page 32: ... 32 C Board ...

Page 33: ... 33 C Board ...

Page 34: ... 34 A C Boards ...

Page 35: ... 35 A Board A C Boards ...

Page 36: ...Printed in USA K02042597MR0423 ...

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