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Service Support

Service and repair of

this product is

supported by

Panasonic's LUCI

interface.

This interface provides a

link between the TV and

a standard PC to allow a

number of diagnostic

and control functions to

be performed.

For more details contact

your local Panasonic

company.

BACK

EXIT

TX-28/25SL1F Service Manual

Safety

Specifications

Block Diagrams

Schematic Diagrams

PCB Views

Self Check

Service

Information

Parts List

Service Hints

Disassembly

Location of

Controls

Waveforms

Mechanical

View

Adjustments

Summary of Contents for TX-28SL1F / TX-25SL1?

Page 1: ...C to allow a number of diagnostic and control functions to be performed For more details contact your local Panasonic company BACK EXIT TX 28 25SL1F Service Manual Safety Specifications Block Diagrams...

Page 2: ...BACK BACK BACK E Schematic N Schematic H Schematic Y Schematic E PCB Y PCB Audio Power supply Control Video...

Page 3: ...ons shown are approximate NOTE This Service Manual should be used in conjunction with the EURO4 technical guide TECHNISCHE DATEN Werte in klammern gelten nur fur TX 25SL1F Netzpannung 220 240V AC 50Hz...

Page 4: ...is the reading should 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 i...

Page 5: ...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 F...

Page 6: ...the 12 screws as shown in Fig 2 SERVICE HINWEISE ENTFERNEN DER GER TER CKWAND 1 Die 12 Schrauben entfernen siehe Abb 2 LOCATION OF CONTROLS LAGE DER EINSTELLREGLER Screws Schrauben Fig 2 Abb 2 N Board...

Page 7: ...Mode as explained above The screen will show 3 Press the BLUE button on the remote control The screen will show 4 Press the STR button on the remote control The screen will show 5 All the tuning info...

Page 8: ...uf Service Modus umschalten Auf dem Bildschirm erscheint 3 Nun die BLAUE Taste an der Fernbedienung bet tigen Auf dem Bildschirm erscheint 4 Nun die STR Taste an der Fernbedienung bet tigen Der Bildsc...

Page 9: ...eraktive Multimedia Hinweise und Notizen Genauso wie dieses Produkt einen ersten Schritt in Richtung erweitertes interaktives Training bereitstellt erm glicht es einen noch schnelleren Zugang zu techn...

Page 10: ...e oscilloscope 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 L...

Page 11: ...Pin 39 275mV 64 S 64 S 3V H Out IC601 Pin 50 Vert Out IC601 Pin 31 20mS 0 7V 13 S 3 7V SCL IC1201 Pin 3 R Out E8 Pin 5 64 S 4 6V HFLB IC601 Pin 13 64 S 6 2V R Out IC601 Pin 37 64 S 275mV G Out IC601 P...

Page 12: ...Linearity V Lin 006 Optimum setting Vertical Symmetry V Sym 002 Optimum setting DVCO DVCO 005 Receive a PAL Colour Bar Pattern For DVCO alignment press Blue button wait until the colours are changing...

Page 13: ...t t V Lin 006 Optimale Einstellung Vertikale Symmetrie V Sym 002 Optimale Einstellung DVCO DVCO 005 Ein Farbbalken Testbild empfangen Zum Abgleich des Farboszillators DVCO die blau Taste dr cken Nachd...

Page 14: ...59 B IN 47 B OUT 39 Q305 Q303 Q301 E8 4 3 5 Q353 Q352 Q351 CRT 3 2 1 7 8 9 Y2 4 3 5 IC351 TUNER Q104 5HG OXH UHHQ 9LGHR Q 9 9LGHR 2XW G OUT 38 R OUT 37 G IN 46 R IN 45 Q306 Q304 Q302 Q354 7 7 VM COIL...

Page 15: ...1 R OUT 3 L OUT 1 R OUT 3 L OUT 2 R IN 6 L IN 2 R IN 6 L IN 47 ANA_IN1 44 MONO IN 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 Q252 Q251 2 L L 11 4...

Page 16: ...AL KEYS SWITCH MATRIX 60 Q854 52 Q853 74 IC1071 Q1052 81 AV2 8 10 AV1 8 10 12 Q856 75 Q851 Q1106 Q1105 Q1107 Q1104 51 72 73 AV LINK SLOW 2 SLOW 1 SCL 1 SDA 1 59 58 Q3006 Q3007 55 VPROT KEYSCAN ON OFF...

Page 17: ...1 3 1 S4 B1 P2 P1 S5 S2 S7 10 9 6 8 5 6 2 6 3 1 6 12V 200V 33V 14V 14V 27V 150V 29V 7V 15V 5V D867 Q852 Q854 Q855 1 D805 R805 R814 IC850 1 2 D862 R854 33V 16 REMOTE CONTROL RECEIVER N BOARD RESET MICR...

Page 18: ...e numbers 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 11...

Page 19: ...0330550049 INSTRUCTION BOOKS GERMAN TQB8E2618A 1 DUTCH FRENCH TQB8E2618BD1 ITALIAN SPANISH TQB8E2618CE1 SWEDISH NORG TQB8E2618FG1 SUOMI DANISH TQB8E2618HK1 I C s AUDIO OUTPUT IC251 LA4282 R G B OUTPU...

Page 20: ...1767 TRANSISTOR Q352 2SA1767 TRANSISTOR Q353 2SA1767 TRANSISTOR Q354 BC857B TRANSISTOR Q451 BC857B TRANSISTOR Q503 2SD2398 M2 TRANSISTOR Q551 BU2508AXLB TRANSISTOR Q552 2SC1473 RN TRANSISTOR Q701 BC85...

Page 21: ...J8GEY0R00 125W 5 0 S M CARB JA30 ERJ8GEY0R00 125W 5 0 S M CARB JA32 ERJ8GEY0R00 125W 5 0 S M CARB JA33 ERJ8GEY0R00 125W 5 0 S M CARB JA34 ERJ8GEY0R00 125W 5 0 S M CARB JA1 ERJ8GEY0R00 125W 5 0 S M CAR...

Page 22: ...ERJ6GEYJ101 0 1W 5 100 CARBON R605 ERD25TJ331 0 25W 5 330 CARBON R606 ERD25TJ331 0 25W 5 330 S M CARB R607 ERJ6GEYJ821 0 1W 5 820 S M CARB R608 ERJ6GEYJ271 0 1W 5 270 S M CARB R609 ERJ6GEYJ122 0 1W 5...

Page 23: ...32 0 1W 5 3K3 S M CARB R1165 ERJ6GEYJ512 0 1W 5 5K1 S M CARB R1166 ERJ6GEYJ912 0 1W 5 9K1 S M CARB R1167 ERJ6GEYJ100 0 1W 5 10 S M CARB R1168 ERJ6GEYJ473 0 1W 5 47K S M CARB R1169 ERJ6GEYJ472 0 1W 5 4...

Page 24: ...684J 50V 680nF ELECT C260 ECA1VM102GB 35V 1nF ELECT C261 ECA1VM102GB 35V 1nF FILM C262 ECQM1H394J 50V 390nF ELECT C263 ECA1HM010GB 50V 1 F ELECT C264 ECA1HHG222E 50V 1 F FILM C265 ECQM1H394J 50V 390nF...

Page 25: ...JCX 50V 330pF S M CAP C1072 ECUV1H103KBX 50V 10nF ELECT C1073 ECA1HM101GB 50V 100 F ELECT C1101 ECJ2VF1H104Z 350V 100nF ELECT C1102 ECA0JM101G 6 3V 100 F S M CAP C1103 ECUV1H220JCX 50V 22pF S M CAP C1...

Page 26: ...50V 220nF S M CAP C3402 ECUV1H101JCX 50V 100pF ELECT C3403 ECA1HM101GB 50V 100 F FILM C3404 ECQM1H224J 50V 220nF S M CAP C3405 ECUV1H180JCX 50V 18pF S M CAP C3406 ECUV1H271JCX 50V 270pF S M CAP C3407...

Page 27: ...NOTES 25...

Page 28: ...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 circuit...

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Page 33: ...I9 IC1104 C9 Q855 J5 D864 I10 IC1103 F8 Q854 B4 D863 G9 IC1102 D10 Q853 B4 D862 N10 IC1101 D8 Q852 B5 D861 J9 IC1051 A10 Q850 F5 D860 I10 IC852 I10 Q701 J5 D859 H5 IC851 G5 Q552 N3 D858 E5 IC850 H4 Q5...

Page 34: ...54 A7 Q353 G6 Q352 F6 Q351 F6 DIODES D906 F1 D905 G4 D904 D3 D902 G4 D901 G3 D364 C9 D363 C8 D362 B9 D361 B7 D360 D8 D359 G6 D358 E7 D357 F7 D356 G7 D355 F7 D354 G7 TEST POINTS TPY6 B8 TPY5 D5 TPY4 E5...

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