Panasonic TX-28LD90F Service Manual

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TX-28/25LD90F Service Manual

Safety

Specifications

Parts List

Service

Information

Adjustments

Self Check

Service Hints

Mechanical

View

Disassembly

Location of

Controls

Waveforms

Block Diagrams

Schematic Diagrams

PCB Views

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.

EXIT

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Summary of Contents for Panasonic TX-28LD90F

Page 1 PC to allow a Schematic Diagrams Self Check number of diagnostic and control functions to Service Hints be performed. Mechanical For more details contact View your local Panasonic company. Disassembly PCB Views Location of Controls EXIT BACK Waveforms...
Page 2 Audio Control Power supply Video BACK D - PCB E - PCB D - Schematic E - Schematics F - PCBs H - PCB F - Schematic H - Schematic N - PCB Y - PCB N - Schematic Y - Schematic BACK BACK...
Page 3 ORDER No. SM-98069 TELEVISORE A COLORI TX-28LD90F TX-25LD90F Telaio EURO - 5 Specificazione (I numeri tra parentesi { } si riferiscono al modello TX-25LD90F) Alimentazione: 220-240V a.c., 50Hz INGRESSO AV2 Video (21 pin) 1V p-p 75Ω Audio (21 pin) 500mV rms 10kΩ...
Page 4 Indice Norme di sicurezza..................................2 Consigli per l’asistenza................................3 Posizione di Servizio .................................4 Procedura di taratura.................................5 Forma D’onda....................................6 Valori di allineamento ................................7 Schema a blocchi ..................................8 Ubicazione Dei Componenti ..............................12 Elenco Parti Di Ricambio.................................13 Schema Elettrico ..................................28 Vista Lato Componenti ................................35 Norme di sicurezza Precauzioni E’Consigliabile utilizzare un trasformatore di Verificare ogni parte metallica esterna misurando la...
Page 5 Consigli per l’assistenza Come rimuovere il pannello posteriore 1. Rimuovere le 11 viti (A) come indicato in Fig.2. Viti A Fig.2. Ubicazione dei Controlli Scheda Y Fuoco Schermo Scheda E Scheda D Scheda N Scheda F Scheda H Fig.3.
Page 6 Come collocare il telaio nella Posizione di Servizio 1. Sfilare il telaio come in Fig.4. 2. Rilasciare le clip dei cavi di collegamento, e ruotare il telaio come in figura. 3. Posizionare la base del telaio nel foro (B), come in Fig.6. 4.
Page 7 Procedura di taratura TARATURE/PREPARAZIONE REGOLAZIONE REGOLAZIONE +B Confermare le seguenti alimentazioni D-Board E-Board Ricevere un segnale a barre colori. PIN5 147V ± 3V E19-PIN8 ± 0,5V Predisporre I controlli :- D12 PIN5 5V ± 0,3V IC3801-PIN3 9V ± 0,5V Luminosita’ minimo D13 PIN1 40V ±...
Page 8 FORMA D’ONDA NOTA: Tutte le forme d’onda sono state orese usando un segnale a barre colori standard. Vert Drive VFLB Vert Out IC451 Pin 2 IC451 Pin 5 IC601 Pin 1 8.6mS 8.6mS H - Out HFLB Video In IC601 Pin 8 IC601 Pin 13 IC1101 Pin 68 64µS...
Page 9 Valori di allineamento, esempi: (N.B. I valori indicati sullo schermo sono approssimative.) 1. Regolare I toni bassi nella massima posizione, regolare I toni alti nella minima posizione, premere il tasto volume meno sulla testiera del TV, e nello stesso tempo premere il tasto "INDEX" sul telecomando. 2.
Page 10 6&+(0$ $ %/2&&+, 6(*1$/, 9,'(2...
Page 11 6&+(0$ $ %/2&&+, 6(*1$/, $8',2...
Page 12 6&+(0$ $ %/2&&+, /,1(( ', &21752//2...
Page 13 6&+(0$ $ %/2&&+, 327(1=$ $/,0(17$=,21(...
Page 14 UBICAZIONE DEI COMPONENTI NOTA: In questa pagina numberi all’ interno di un cherchio corrispondono ai numeri riportanti nell’elenco parti di ricambio.
Page 15 EASG15S506A2 SPEAKER IC1103 M5M51008BP SRAM ENG29505G TUNER IC1104 27C2001-H07 EPROM * EUR511211 REMOTE CONTROL IC1105 MN1381-T(TA) RESET TBM8E1728 PANASONIC BADGE IC1106 MN1381-R(TA) RESET TBX8E050 POWER BUTTON IC1502 VPC3215CB4TP TKP8E1223 DOOR LID IC1503 MB87F1720 TKP8E1262 REAR AV PANEL IC1504 FJB007S TMX8E033-1...
Page 16 Cct Ref Parts Number Description Cct Ref Parts Number Description D502 1SS254T-77 DIODE D1107 MA165TA5 DIODE D503 EU02 DIODE D1109 MA165TA5 DIODE D504 EU02 DIODE D1110 MA165TA5 DIODE D505 ERA81004V3 DIODE D1112 MA165TA5 DIODE D556 AU02V0 DIODE D1501 MA151ATX DIODE D559 MTZJT-7736A DIODE...
Page 17 Cct Ref Parts Number Description Cct Ref Parts Number Description Q1106 BC847B TRANSISTOR L005 TLT100K991R COIL Q1107 BC847B TRANSISTOR L007 EXCELDR35V COIL Q1108 BC847B TRANSISTOR L008 ELJFC2R2KF COIL Q1109 BC847B TRANSISTOR L009 ELJFC2R2KF COIL Q1110 BC847B TRANSISTOR L251 EXCELSA35T COIL Q1111 BC847B TRANSISTOR...
Page 18 Cct Ref Parts Number Description Cct Ref Parts Number Description L1532 EXCELDR35V COIL JA16 ERJ8GEY0R00 S.M.CARB .125W L1533 EXCELDR35V COIL JA18 ERJ6GEY0R00 S.M.CARB 0.1W L1534 EXCELDR35V COIL JA19 ERJ6GEY0R00 S.M.CARB 0.1W L1535 EXCELDR35V COIL JA20 ERJ8GEY0R00 S.M.CARB .125W L1536 EXCELDR35V COIL JA21 ERJ6GEY0R00...
Page 19 Cct Ref Parts Number Description Cct Ref Parts Number Description R109 ERJ6GEYJ103 S.M.CARB 0.1W R420 ERJ6GEYJ563 S.M.CARB 0.1W R110 ERJ6GEYJ222 S.M.CARB 0.1W R421 ERJ6GEYJ224 S.M.CARB 0.1W 220K R111 ERJ6GEYJ331 S.M.CARB 0.1W R441 ERJ6GEYJ393 S.M.CARB 0.1W R251 ERJ6GEYJ331 S.M.CARB 0.1W R442 ERJ6GEYJ123 S.M.CARB 0.1W...
Page 20 Cct Ref Parts Number Description Cct Ref Parts Number Description R657 ERJ6GEYJ750 S.M.CARB 0.1W R886 ERX3SJR56 METAL R658 ERJ6ENF2212 S.M. CAR 0.1W R888 ERDS1TJ393 CARBON 0.5W R663 ERJ6GEYJ334 S.M.CARB 0.1W 330K R889 ERD25TJ392 CARBON 0.25W R664 ERJ6GEYJ562 S.M.CARB 0.1W R891 ERD25TJ103 CARBON 0.25W...
Page 21 Cct Ref Parts Number Description Cct Ref Parts Number Description R1122 ERJ6GEYJ472 S.M.CARB 0.1W R1200 ERJ6GEYJ472 S.M.CARB 0.1W R1123 ERJ6GEYJ823 S.M.CARB 0.1W R1237 ERJ6GEY0R00 S.M.CARB 0.1W R1124 ERJ6GEYJ101 S.M.CARB 0.1W R1238 ERJ6GEYJ102 S.M.CARB 0.1W R1125 ERJ6GEYJ101 S.M.CARB 0.1W R1239 ERJ6GEYJ560 S.M.CARB 0.1W R1126...
Page 22 Cct Ref Parts Number Description Cct Ref Parts Number Description R1570 ERJ6ENF2701 S.M.CARB 0.1W R1643 ERJ6GEYJ473 S.M.CARB 0.1W R1571 ERJ6GEYJ103 S.M.CARB 0.1W R1644 ERJ6GEYJ183 S.M.CARB 0.1W R1572 ERJ6GEYJ103 S.M.CARB 0.1W R1645 ERJ6GEYJ473 S.M.CARB 0.1W R1573 ERJ6ENF1500 S.M. CAR 0.1W R1646 ERJ6GEYJ183 S.M.CARB 0.1W...
Page 23 Cct Ref Parts Number Description Cct Ref Parts Number Description R2320 ERJ6GEYJ101 S.M.CARB 0.1W R3048 ERJ6GEYJ102 S.M.CARB 0.1W R2321 ERJ6GEYJ101 S.M.CARB 0.1W R3053 ERJ6GEYJ220 S.M.CARB 0.1W R2351 ERJ6GEYJ102 S.M.CARB 0.1W R3057 ERJ6GEYJ151 S.M.CARB 0.1W R2352 ERJ6GEYJ102 S.M.CARB 0.1W R3058 ERJ6GEYJ104 S.M.CARB 0.1W 100K...
Page 24 Cct Ref Parts Number Description Cct Ref Parts Number Description 220nF R3424 ERJ6GEYJ101 S.M.CARB 0.1W C271 ECQM1H224J FILM R3425 ERJ6GEYJ221 S.M.CARB 0.1W C277 ECUV1H102JCX S.M. CAP R3426 ERJ6GEYJ680 S.M.CARB 0.1W C278 ECUV1H102JCX S.M. CAP 220nF R3427 ERJ6GEYJ102 S.M.CARB 0.1W C352 ECUV1H224ZFX S.M.
Page 25 Cct Ref Parts Number Description Cct Ref Parts Number Description 100nF 470pF C613 ECUV1H104ZFX S.M. CAP C859 ECKC2H471J CERAMIC 500V 100nF 220µF C614 ECUV1H104ZFX S.M. CAP C861 ECOS2EA221AB ELECT 250V 100nF 220µF C615 ECJ2VB1C104K ELECT 350V C863 ECA1EM332E ELECT 100nF 220µF C616 ECQM1H104J...
Page 26 Cct Ref Parts Number Description Cct Ref Parts Number Description 100nF 100nF C1511 ECUV1H104ZFX S.M. CAP C1581 ECUV1H104ZFX S.M. CAP 30pF 100nF C1512 ECUV1H030CCX S.M. CAP C1582 ECUV1H104ZFX S.M. CAP 10µF 100nF C1513 ECA1HM100GB ELECT C1583 ECUV1H104ZFX S.M. CAP 100nF 100nF C1514 ECUV1H104ZFX...
Page 27 Cct Ref Parts Number Description Cct Ref Parts Number Description 100nF 220pF C1653 ECUV1H104ZFX S.M. CAP C2128 ECUV1H221JCX S.M. CAP 100nF 10µF C1654 ECUV1H104ZFX S.M. CAP C2129 ECA1CM100GB ELECT 47µF 220pF C1655 ECA1VM470B ELECT C2130 ECUV1H221JCX S.M. CAP 100nF 330nF C1656 ECUV1H104ZFX S.M.
Page 28 COIL C3427 ECUV1H102JCX S.M. CAP RESISTORS C3428 ECEA1HKA4R7 ELECT R419 ERG3FJ471 METAL C3429 ECEA1CKA220 ELECT C3430 ECEA1HKA4R7 ELECT DIFFERENCES FOR MODEL TX-28LD90F 47µF C3431 ECEA1CN470 ELECT 100nF C3432 ECUV1H104ZFX S.M. CAP 220µF C3433 ECA1CM221GB ELECT MECHANICAL PARTS 560pF C3460 ECUV1H561JCX S.M.
Page 29 Cct Ref Parts Number Description Cct Ref Parts Number Description RESISTORS R419 ERG3FJ151 METAL...
Page 30 SCHEMA ELETTRICO TX-28LD90F TX-25LD90F (TELAIO EURO-5) IMPORTANTI INFORMAZIONI DI SICUREZZA I componenti indicati con hanno caratteristiche speciali ed importante per la sicurezza. Qualore tali componenti vengano sostituity, devono essere usati solo quelli specificati dal costruttore. Nota RESISTENZE Tutte le resistenze sono al carbone da 1/8W se sono contrassegnate come segue : I valori sono esspressi in OHM W k=1,000 M= 1,000,000.
Page 38 VISTA LATO COMPONENTI SCHEDA - E TNPH0176 TRAN’S DIODE’S Q101 D001 D2364 A6 Q103 D002 D3005 B1 Q104 D252 D3006 B2 Q251 D253 D3008 B4 Q252 D254 D3009 A3 Q253 D255 D3010 A3 Q254 D256 D3011 B1 Q281 D281 D3803 A5 Q282 D282 D3804 A5...
Page 39 SCHEDA - Y TNPA1353 TRAN’S Q901 Q902 Q903 Q904 Q906 Q908 Q909 Q3351 A2 Q3352 A2 DIODE’S D351 D352 D361 D362 D371 D372 D373 D374 D375 D387 D901 D902 D903 D910 D911 D3351 A2 D3352 A3 D3353 A1 D3354 C3 T.P.’S TPY1 TPY2...
Page 40 SCHEDA - D TNPA1014 DIODE’S TRAN’S D503 Q502 D504 Q552 D505 Q553 D551 Q554 D556 Q701 D559 Q801 D560 Q803 D561 Q804 D563 Q845 D565 Q846 D566 Q847 D571 Q848 D575 Q849 D701 Q850 D803 Q852 D807 Q853 D808 Q854 D809 D810 I.C.’S...
Page 41 SCHEDA - H TNPA1047 TRAN’S Q2401 A2 Q2407 A3 Q2408 A3 Q2409 A3 Q2410 A3 Q2411 A3 Q2412 A3 Q3401 B1 Q3402 C1 Q3403 B1 Q3404 C1 Q3405 C3 Q3406 C3 DIODE’S D2401 A2 D2403 A3 D2404 A3 D2405 A3 D2406 A3 D2407 A3 D2408 A3...
Page 42 SCHEDA - F TNPA1068 TRAN’S Q1663 B2 Q1664 B2 Q1665 B2 Q1666 C1 Q1667 C1 I.C.’S IC1502 B3 IC1503 C3 IC1504 D1 IC1505 D2 IC1506 C2 IC1509 C1 IC1510 C1...
Page 43 SCHEDA - F TNPA1068 TRAN’S Q1501 D3 Q1502 C3 Q1503 B2 Q1504 C1 Q1505 C1 Q1506 C1 Q1507 C1 Q1508 C1 Q1509 C1 Q1510 D1 Q1511 D1 Q1519 D1 Q1660 C2 Q1661 C2 Q1662 C2 I.C.’S IC1507 B2...
Page 44 SCHEDA - N TNPA1072 TRAN’S Q1081 A3 DIODE’S D1081 B3 I.C.’S IC1081 B2...

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Tx-25ld90f