Panasonic TX-28SL20F Service Manual Download Page 25 | Manualshive

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Summary of Contents for TX-28SL20F

Page 1: ... shown are approximate NOTE This Service Manual should be used in conjunction with the EURO 4H technical guide TECHNISCHE DATEN Netzpannung 220 240V a c 50Hz Leistungsaufnahme 121W Standby Leistungsaufnahme 1 4W Antennenimpedanz 75Ω asymmetrisch Koaxial Typ Empfangssystem PAL B G H I D K PAL 525 60 SECAM B G D K L L M NTSC NTSC nur AV Eingang Empfangsbereiche VHF E2 E12 VHF H1 H2 ITALY VHF A H ITA...

Page 2: ...uld be between 4M ohm and 20M ohm When the exposed metal does not have a return path to the chassis the reading must be infinite SICHERHEITSVORKEHRUNGEN ALLGEMEINE RICHTLINIEN 1 Es ist empfehlenswert einen Trenntransformator in die Stromversorgung zu schalten bevor Reparaturen an einem Gerät vorgenommen werden dessen Chassis unter Spannung steht 2 Bei der Durchführung von Servicearbeiten dürfen di...

Page 3: ...t failure 3 To prevent any X Radiation possibility it is essential to use the specified tube MESSUNG DES KRIECHSTROMS IM EINGESCHALTETEN ZUSTAND 1 Den Netzstecker direkt in eine Netsteckdose stecken Für diese Messung keinen Trenntransformator verwenden 2 Einen 2kΩ 10W Widerstand in Serie mit einem von außen zugänglichen Metallteil am Fernsehgerät und einer guten Erdung z B Wasserleitung anschließe...

Page 4: ...2 SERVICE HINWEISE ENTFERNEN DER GERÄTERÜCKWAND 1 Die 11 Schrauben entfernen siehe Abb 2 LOCATION OF CONTROLS LAGE DER EINSTELLREGLER 4 Fig 2 Abb 2 SCREWS SCHRAUBEN SCREWS SCHRAUBEN N Board Y Board P Board E Board F Board Focus Fokusregler Screen Schirmgitteregler W Board Fig 3 Abb 3 ...

Page 5: ...ng erweitertes interaktives Training bereitstellt ermöglicht es einen noch schnelleren Zugang zu technischen Informationen Um Servicearbeiten auf dem F Bord durchzuführen steht ein Satz Verlängerungskabel unter der Bestellnummer TZS9EK008 zur Verfügung 5 Service Aids To aid in the service of our current chassis there are a number of Service Aids which have been made available LUCI interface kit Li...

Page 6: ...cilloscope Select Ug2 adjustment and adjust the screen VR until the display shows O K ABGLEICH Vorbereitungen Abgleich B Abgleich 1 Testbild empfangen Helligkeit auf Minimum Kontrast auf Minimum Lautstärke Minimum 1 Mit R811 muß die B2 auf 148V 1V eingestellt werden 2 Folgende Spannungen sind zu überprüfen B9 5 0 25V B10 5 0 25V B5 12 0 5V B11 33 1 5V B4 16 1V B7 8 0 5V B12 26 2V B8 6 0 5V B3 36 1...

Page 7: ... Pin 39 275mV 64µs 64µs 3V H Out IC601 Pin 50 Vert Out IC601 Pin 31 20ms 0 7V 13µs 3 7V SCL IC1201 Pin 3 R Out E8 Pin 5 64µs 4 6V HFLB IC601 Pin 13 64µs 6 2V R Out IC601 Pin 37 64µs 275mV G Out IC601 Pin 38 275mV 64µs Vert Drive IC451 Pin 2 20ms 57V HFLB IC701 Pin 8 64µs 1 5V G Out E8 Pin 3 64µs 4 4V SVM Out IC601 Pin 34 88mV 64µs H Out IC701 Pin 5 30mV 64µs ...

Page 8: ...mplitude H Amp 055 Optimum setting Vert Amplitude V Amp 054 Optimum setting EW amplitude E W Amp1 128 Optimum setting EW amplitude E W Amp2 006 Optimum setting Trapezium comp Trapez 1 047 Optimum setting Trapezium comp Trapez 2 128 Optimum setting Vertical Linearity V Lin 006 Optimum setting Vertical Symmetry V Sym 002 Optimum setting DVCO DVCO 005 Receive a PAL Colour Bar Pattern For DVCO alignme...

Page 9: ...stellung Horizontale Amplitude H Amp 055 Optimale Einstellung Vertikale Amplitude V Amp 054 Optimale Einstellung OW amplitude E W Amp1 128 Optimale Einstellung OW amplitude E W Amp2 006 Optimale Einstellung Trapez Kompensation Trapez 1 047 Optimale Einstellung Trapez Kompensation Trapez 2 128 Optimale Einstellung Vertikale linearität V Lin 006 Optimale Einstellung Vertikale Symmetrie V Sym 002 Opt...

Page 10: ...9 IC351 R OUT 27 33 34 35 28 29 26 30 25 3 2 1 6 7 8 9 E70 27 33 34 35 28 29 26 30 25 3 2 1 6 7 8 9 F1 Q1502 Q1503 Q1504 Q1508 Q1509 Q1510 Q1505 Q1506 Q1507 Q1511 Q1512 Q1513 3 9 IC371 B OUT 3 9 IC361 G OUT F BOARD 25 26 24 23 33 31 32 Q1501 64 61 60 63 62 IC1504 IC1501 IC1502 67 65 63 IC1101 R 37 CVBS 68 G 38 B 39 MICRO PROCESSOR IC601 AV VIDEO SWITCH 6 3 C I P VIDEO PROCESSOR DEFLECTION PROCESSO...

Page 11: ... 1 R OUT 3 L OUT 2 R IN 6 L IN 2 R IN 6 L IN 47 ANA_IN1 DACM_L 25 SC3_IN_R 38 SC1_IN_R 42 SC1_IN_L 41 SC2_OUT_R 27 SC2_OUT_L 28 SC2_IN_R 40 SC2_IN_L 39 E BOARD AUDIO PROCESSOR Q2303 Q2301 Q2302 22 DACA_L Q2304 21 DACA_R AV3 R 6 R 4 L HEADPHONE 7 R 5 L E6 1 E7 3 IC251 Q2102 Q2103 5 R R 7 Q252 Q251 2 L L 11 AUDIO OUTPUT L 49 ANA_IN2 Q103 44 MONO IN X101 X102 ...

Page 12: ...SDA 48 49 SCL SDA E BOARD IC2101 4 8 7 AUDIO PROCESSOR MICRO PROCESSOR IC1103 6 5 EAROM AFC 61 AFC IC601 5 VIDEO PROCESSOR IC601 5 AV VIDEO SWITCH RC E18 7 6 5 4 3 SDA 1 SCL 1 SDA 2 SCL 2 SERVICE TEST N1 E19 4 8 4 8 IC1071 REMOTE CONTROL RECEIVER F1 13 21 22 E70 13 21 22 SCL 1 SDA 1 E8 6 SENSE CONVERTER 68 54 17 20 29 62 IC1504 IC1503 67 21 DEFLECTION PROCESSOR IC1501 VIDEO PROCESSOR IC1502 C I P ...

Page 13: ... EAROM IC1105 2 RESET REG REG REG IC1501 31 C I P IC701 6 EW CORRECTION POWER SUPPLY IC451 7 9 2 V OUTPUT AUDIO OUTPUT D801 E BOARD Y BOARD E3 2 Y3 2 E1 4 1 E2 2 1 R802 Line Filter IC351 6 R OUT 12V E19 2 N1 2 IC1071 REMOTE CONTROL RECEIVER Degauss Coil W1 4 1 Line Filter Mains In W BOARD E70 11 18 19 20 F1 11 18 19 20 IC1502 53 IC1503 VIDEO PROCESSOR IC1504 1 Deflection Processor CONVERTER HOUT5V...

Page 14: ...ers on the exploded view below refer to the mechanical section of the Replacement Parts List Anmerking Die Nummer auf den mechanischen Teilen Zeigt die Bezugsnummer der Ersatzteilliste an 20 9 18 11 23 1 10 6 5 22 4 19 12 2 8 14 13 21 25 16 7 3 17 15 24 ...

Page 15: ...BM8E1840 LID CATCH TEK6940 POWER BUTTON SPRING TES8E015 LED HOLDER TMW8E027 OUTER CARTON TPC8E4813 TOP CUSHION TPD8E655 BOTTOM CUSHION TPD8E656 BATTERY PACK UM 3DJ 2P PCB BRACKET PCH2 TMX8E041 PCB BRACKET PCH3 TMX8E041 THERMISTOR R802 232266296706 INSTRUCTION BOOKS GERMAN TQB8E2838A 1 ITALIAN TQB8E2838C 1 FRENCH TQB8E2838D 1 I C s AUDIO OUTPUT IC251 LA4282 RGB OUTPUT IC351 TDA6111Q N4 RGB OUTPUT I...

Page 16: ... D2103 MA723TA5 DIODE D2104 MA723TA5 DIODE D2105 MTZJT 778 2C DIODE D2303 MA723TA5 DIODE D2304 MA723TA5 DIODE D3351 1SS254T 77 DIODE D3352 MA165TA5 DIODE D3353 MA165TA5 DIODE D3354 MA165TA5 TRANSISTORS TRANSISTOR Q101 BC847B TRANSISTOR Q102 BC847B TRANSISTOR Q103 BC847B TRANSISTOR Q104 BC847B TRANSISTOR Q105 BC847B TRANSISTOR Q251 2SD1328STX TRANSISTOR Q252 2SD1328STX TRANSISTOR Q253 BC847B TRANSI...

Page 17: ...KA COIL L1530 EXCELDR35V COIL L2101 TLTACT100K COIL L2103 EXCELSA35T COIL L2104 TLTACT4R7K COIL L3001 ELEMV1R5MA COIL L3002 ELEMV1R5MA COIL L3003 ELEMV1R5MA COIL L3004 ELEMV1R5MA FILTERS LINE FILTER L802 ELF18N012A LINE FILTER L804 ELF18N012A FILTER X101 EFCT6504BF CERAMIC FILTER X102 EFCT7004BF CRYSTALS CRYSTAL X1101 TSSA121 CRYSTAL X1501 4730007267 CRYSTAL X1502 4730007341 CRYSTAL X2101 47300071...

Page 18: ...RJ6GEYJ202 0 1W 5 2K METAL R355 ERG1ANJ683 1W 5 68K S M CARB R356 ERJ6GEYJ181 0 1W 5 180 S M CARB R357 ERJ6GEYJ822 0 1W 5 8K2 CARBON R358 ERDS1TJ821 0 5W 5 820 CARBON R359 ERD25TC0T 0 25W 5 0 METAL R360 ERO50PKF8251 0 5W 5 8M2 S M CARB R362 ERJ6GEYJ202 0 1W 5 2K METAL R365 ERG1ANJ683 1W 5 68K S M CARB R366 ERJ6GEYJ181 0 1W 5 180 S M CARB R367 ERJ6GEYJ822 0 1W 5 8K2 CARBON R368 ERDS1TJ821 0 5W 5 82...

Page 19: ...J6GEYJ221 0 1W 5 220 S M CARB R917 ERJ6GEYJ121 0 1W 5 120 S M CARB R918 ERJ6GEY0R00 0 1W 5 0 FUSIBLE R919 ERQ14AJW390 0 25W 5 39 FUSIBLE R920 ERQ14AJW390 0 25W 5 39 CARBON R922 ERD25TJ683 0 25W 5 68K CARBON R923 ERD25TJ683 0 25W 5 68K CARBON R924 ERDS1FYJ390 0 5W 5 39 S M CARB R925 ERJ6GEY0R00 0 1W 5 0 S M CARB R926 ERJ6GEY0R00 0 1W 5 0 CARBON R927 ERD25TJ122 0 25W 5 1K2 CARBON R928 ERD25TJ5R6 0 2...

Page 20: ... 1W 5 100 S M CARB R1546 ERJ6GEYJ101 0 1W 5 100 S M CARB R1547 ERJ6GEYJ101 0 1W 5 100 S M CARB R1548 ERJ6GEYJ101 0 1W 5 100 S M CARB R1549 ERJ6GEYJ101 0 1W 5 100 S M CARB R1550 ERJ6GEYJ101 0 1W 5 100 S M CARB R1551 ERJ6GEYJ101 0 1W 5 100 S M CARB R1552 ERJ6GEYJ101 0 1W 5 100 S M CARB R1553 ERJ6GEYJ101 0 1W 5 100 S M CARB R1554 ERJ6GEYJ101 0 1W 5 100 S M CARB R1555 ERJ6GEYJ101 0 1W 5 100 S M CARB R...

Page 21: ... Q ELECT C251 ECA1EM330B 25V S M CAP C252 ECUV1H472KBX 50V Q ELECT C253 ECA1HM4R7GB 50V FILM C254 ECQM1H684J 50V Q ELECT C255 ECA1EM101GB 25V S M CAP C256 ECUV1H472KBX 50V Q ELECT C257 ECA1HM4R7GB 50V ELECT C258 ECA1EM330B 25V FILM C259 ECQM1H684J 50V Q ELECT C260 ECA1VM102GB 35V Q ELECT C261 ECA1VM102GB 35V Q FILM C262 ECQM1H334J 50V Q ELECT C263 ECA1HM010GB 50V ELECT C264 ECA1HHG222E 50V FILM C2...

Page 22: ...250V ELECT C913 ECA1HM101GB 50V ELECT C914 ECA1HM101GB 50V ELECT C916 ECA2EM220B 250V ELECT C917 ECA1HM100GB 50V ELECT C918 ECJ2VF1H103Z 350V Q CERAMIC C919 ECCR2H270J 500V S S M CAP C1071 ECUV1H331JCX 50V S S M CAP C1072 ECUV1H103KBX 50V Q ELECT C1073 ECA1HM101GB 50V ELECT C1101 ECJ2VF1H104Z 350V Q ELECT C1102 ECA0JM101G 6 3V S M CAP C1103 ECUV1H220JCX 50V S S M CAP C1104 ECUV1H220JCX 50V S S M C...

Page 23: ...02JCX 50V Q ELECT C2111 ECA1CM100GB 16V ELECT C2112 ECA1CM100GB 16V ELECT C2113 ECA1HM3R3GB 50V ELECT C2114 ECJ2VF1H104Z 350V Q S M CAP C2117 ECUV1H221JCX 50V S S M CAP C2118 ECUV1H221JCX 50V S S M CAP C2119 ECUV1H221JCX 50V S S M CAP C2120 ECUV1H221JCX 50V S ELECT C2121 ECA1CM100GB 16V ELECT C2122 ECJ2VF1H104Z 350V Q S M CAP C2123 ECUV1H221JCX 50V S S M CAP C2124 ECUV1H070DTX 50V S S M CAP C2125 ...

Page 24: ...Power Supply Circuit contains a circuit area which uses a separate power supply to isolate the earth connection The circuit is defined by HOT and COLD indications in the schematic diagram All circuits except the Power Circuit are COLD Take the following precautions 1 Das Schaltnetzteil enthält Bereiche die direkt mit dem Netz verbunden sind Diese Bereiche sind im Schaltplan mit HOT gekennzeichnet ...

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Page 31: ... F9 D609 M5 TPs Q857 J4 D620 J9 TPE1 M4 Q1051 C8 D701 K5 TPE2 I5 Q1052 A9 D702 K8 TPE3 E5 Q1101 F7 D703 K8 TPE4 G5 Q1104 D6 D704 K5 TPE5 G5 Q1105 C6 D705 K5 TPE6 J10 Q1106 D7 D706 K5 TPE7 I9 Q1107 C7 D707 J4 TPE8 F5 Q1108 F9 D708 M5 TPE9 F5 Q2101 G10 D709 M5 TPE10 B5 Q2102 I8 D710 J5 TPE11 N5 Q2103 I8 D801 E1 TPE12 K4 Q2301 M6 D802 G2 TPE13 M4 Q2302 I7 D803 H1 TPE14 L4 Q2303 M6 D804 H1 Q2304 I7 D8...

Page 32: ... DIODES D351 C3 D352 C3 D361 B3 D362 A4 D371 B1 D372 B2 D373 C2 D374 A4 D375 B3 D376 C3 D377 B4 D378 B2 D387 A3 D901 A2 D902 A2 D903 A2 D910 A2 D911 B1 D912 A1 D3351 B4 D3352 C4 D3353 A4 D3354 C2 T P S TPY1 C3 TPY2 B4 TPY3 B2 TPKR C3 TPKG B3 TPKB B2 I C S IC351 B3 IC361 A4 IC371 C2 IC381 C2 A B C 4 3 2 1 28 ...

Page 33: ...N BOARD TNP8EN016 DIODES D1071 B3 D1072 A6 IC S IC1071 B2 C B A 1 2 3 4 5 6 7 8 29 ...

Page 34: ...P BOARD TNP8EP017 DIODES D580 A3 D581 A3 A B C 30 5 4 3 2 1 ...

Page 35: ...W BOARD TNP8EW002 I C S IC1901 A2 31 1 2 3 A C B ...

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