Panasonic CT-20G7DF-1 Service Manual Download Page 29 | Manualshive

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A & C PCB BOARD

ALL MODELS

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Summary of Contents for CT-20G7DF-1

Page 1: ...ians 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 20G7DF 1 DP391 CT 20D12DF 1 EP391 CT 2017F 1 DP391 Models ORDER NO MTNC021096A1 B1 This supplement service manual is issued to ADD the models of the NA7DM family listed above to the simplified service manual order No MTNC020515A1 CT 20D12...

Page 2: ... tube 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 ...

Page 3: ...gh voltage CRT anode 2 Service notes 4 Leadless chip component surface mount 4 Component removal 4 Chip component Installation 4 How to replace Flat IC 4 X ray protection circuit check 5 Receiver feature table 6 Boards designation 7 Parts list 8 Foldouts notes 14 A Board TNP2AH048DR 16 C Board TNP2AA124AF 21 A Board TNP2AH048DS 22 A C PCB Board 28 ...

Page 4: ...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 nose ...

Page 5: ... 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 than D823 refer to pa...

Page 6: ...lter 2 DIG V A norm V MTS SAP DBX X Built in audio power 1 5Wx2 10 Number of speakers 2 AI Sound X A V in rear front 1 1 1 Audio Out F FAO V VAO F V S VHS In rear front 1 0 FM Radio X EPJ HPJ MISC HPJ Dimensions mm WxDxH in 515 7x490 5x461 7 20 30x19 31x18 17 Weight kg lbs 18 39 6 Anode voltage 26 60 1 25 kV Video input jack 1Vp p 75Ω phono Audio input jack 500mV rms 47KΩ Table 1 Receiver features...

Page 7: ... 20G7DF 1 A Board TNP2AH048DR MAIN BOARD C Board TNP2AA124AF CRT BOARD Table 1 Boards designation MODELS BOARD PART NUMBER BOARD DESCRIPTION CT 20D12DF 1 A Board TNP2AH048DS MAIN BOARD C Board TNP2AA124AF CRT BOARD Table 2 Boards designation Since 1 and non dash models have different PCB layouts and parts When servicing any of these models please confirm the model number before starting service so...

Page 8: ...VC1H560J CAP C 56PF J 50V C057 TCJ2VC1H471J CAP C 470PF J 50V CT 20D12DF 1 C103 ECA0JM331B CAP E 330UF 6 3V C104 TCJ2VB1H103K CAP C 01UF K 50V C105 ECA0JM101B 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 TCJ2VC1H...

Page 9: ...E 1000UF 25V C2302 ECEA1HN010UB CAP E 1UF 50V C2303 ECA1EM101B CAP E 100UF 25V C2304 ECA1CM100B CAP E 10UF 16V C2307 ECA1CM102B CAP E 1000UF 16V C2309 ECA1HM010B CAP E 1UF 50V CT 20D12DF 1 C2311 ECA1EM102E CAP E 1000UF 25V C2312 ECEA1HN010UB CAP E 1UF 50V C2313 ECA1EM101B CAP E 100UF 25V C2314 ECA1CM100B CAP E 10UF 16V C2317 ECA1CM102B CAP E 1000UF 16V C2319 ECA1HM010B CAP E 1UF 50V CT 20D12DF 1 R...

Page 10: ...L007 EXCELDR35V FERRITE BEAD L008 G0C470KA0029 COIL PEAKING 47UH L009 EXCELSA35V FERRITE BEAD L010 ELESN330JA COIL PEAKING 33UH L011 ELESN330JA COIL PEAKING 33UH L013 EXCELDR35V FERRITE BEAD L014 ELESN180KA COIL PEAKING 18UH REF NO PART NO DESCRIPTION L015 EXCELSA35V FERRITE BEAD L016 EXCELSA35V FERRITE BEAD L017 G0C100KA0029 COIL PEAKING 10UH L019 EXCELDR35V FERRITE BEAD L021 G0C470KA0029 COIL PE...

Page 11: ...03V RES M 10K J 1 10W CT 20D12DF 1 R078 ERJ6GEYJ103V RES M 10K J 1 10W R081 ERJ6GEYJ103V RES M 10K J 1 10W R090 ERJ6GEYJ471V RES M 470 J 1 10W R091 ERJ6GEYJ185V RES M 1 8MEG J 1 10W REF NO PART NO DESCRIPTION R092 ERJ6GEYJ473V RES M 47K J 1 10W R093 ERJ6GEYJ331V RES M 330 J 1 10W R201 ERJ6GEYJ182V RES M 1 8K J 1 10W CT 20D12DF 1 R202 ERJ6GEYJ102V RES M 1K J 1 10W CT 20D12DF 1 R202 ERJ6GEYJ751V RES...

Page 12: ...4W R808 ERDS2TJ4R7T RES C 4 7 J 1 4W R809 ERDS2TJ472T RES C 4 7K J 1 4 R815 ERC12ZGM825D RES S 8 2MEG M 1 2 R817 ERX3FJ6R8 RES F 6 8 J 3W R821 ERDS1FJ1R5T RES C 1 5 J 1 2W R822 ERDS1FJ1R5T RES C 1 5 J 1 2W R823 ERDS1FJ272T RES C 2 7K J 1 2W REF NO PART NO DESCRIPTION R824 ERDS2TJ223T RES C 22K J 1 4W R825 ERDS2TJ272T RES C 2 7K J 1 4W R828 ERJ6GEYJ104V RES M 100K J 1 10W R830 ERDS2TJ104T RES C 100...

Page 13: ...12 TXFKU06ESER ASSY CABINET BACK CT 20D12DF 1 REF NO PART NO DESCRIPTION M013 TBM2A10141 BADGE PANASONIC M014 TBX2AA0121 BUTTON 7 KEY CT 20G7DF 1 CT 20D12DF 1 M015 TBX2AA1701GS BUTTOM 7 KEY CT 2017F 1 M016 TKX2AA00401 IR GUIDE CT 2017F 1 M017 TKX2AA00404 IR GUIDE CT 20G7DF 1 CT 20D12DF 1 M018 TXFKY06ESER ASSY CABINET FRONT CT 2017F 1 M019 TXFKY09FSER ASSY CABINET FORNT CT 20G7DF 1 CT 20D12DF 1 JK3...

Page 14: ...vary depending on the type of Oscilloscope used and its settings 5 Ground symbol 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...

Page 15: ... de la señal y el contenido de la imagen Las fuentes de voltajes son nominales 2 El símbolo indica el tipo de 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...

Page 16: ... 16 TNP2AH048DR CT 2017F 1 CT 20G7DF 1 ...

Page 17: ... 17 TNP2AH048DR CT 2017F 1 CT 20G7DF 1 ...

Page 18: ... 18 TNP2AH048DR CT 2017F 1 CT 20G7DF 1 ...

Page 19: ... 19 TNP2AH048DR CT 2017F 1 CT 20G7DF 1 ...

Page 20: ... 20 TNP2AH048DR CT 2017F 1 CT 20G7DF 1 ...

Page 21: ... 21 TNP2AA124AF CT 2017F 1 CT 20G7DF 1 CT 20D12DF 1 ...

Page 22: ... 22 TNP2AH048DS CT 20D12DF 1 ...

Page 23: ... 23 TNP2AH048DS CT 20D12DF 1 ...

Page 24: ... 24 TNP2AH048DS CT 20D12DF 1 ...

Page 25: ... 25 TNP2AH048DS CT 20D12DF 1 ...

Page 26: ... 26 TNP2AH048DS CT 20D12DF 1 ...

Page 27: ... 27 NOTES NOTES ...

Page 28: ... 28 A C PCB BOARD ALL MODELS ...

Page 29: ... 29 A C PCB BOARD ALL MODELS ...

Page 30: ...Printed in USA K02102597PL1113 ...

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