User manual SANYO C28EH76NF SERVICE MANUAL

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Manual abstract: user guide SANYO C28EH76NFSERVICE MANUAL

Detailed instructions for use are in the User's Guide.

[. . . ] oppure le forme di onda di immagine nor2. Tutte le resistenze nominali watt sono di male furono prese usando un oscillatore a 1/6 a meno che sia specificato altrimenti. larga banda ed una sonda bassa capasità. Eccetto per i condensatori elettrolitici, tutti 8. [. . . ] 0V CVBS 15 EXT(1V) 3. 9V SHARP- 14 NESS 3. 2V 6 T451-5 2. 1Vp-p 64µs 40Vp-p 64µs 1000Vp-p 64µs L231 L2B94R7KN C235 CD 10CA D431 RD9. 1EB1 :RD9. 1EB2 :UZ-9. 1BCA :UZ-9. 1BCB :MTZ9. 1A :MTZ9. 1B R436 DJ15K D432 EM01Z C438 FK0. 01 (D:BE) Q432-1 0HA0015--Q432 2SD 1651YB --V Q432-C C441-1 C441 200NJ 0. 36 5 HV TER1 X TER1 X IC3451 FOCUS SCREEN 3 C425 C421 3000KK330 1500MJ (AHH:CRD 8200XE :CTB:CTD) C421-3 C421-2 T451-10 IC3401 C234 CJ150CA R218 1/10GJ 56K C215 63GK 0. 47V :HJ 0. 47G C136 16EM 470CD C233 25KZ0. 1FA :KZ0. 1FA R232 1/10GJ 100 L232 L2B94R7KN CVBS 13 INT(2V) 4. 4V CAL 12 DEC GND 11 VCC 10 GND 9 DIS DEC 3. 6V 0V 4 T451-1 T451A-11 1 11 10 R435-3 T451-2 Q151/Q153/Q154 B6 12V 0V 0V Z10 J214 J T3401 K34A K34B IC3431 Q152 2SC536 (E-NP:F-NP :G-NP) :QT0378(A:B) L151 L2B9 100KN R151 DJ 680 R152 220 0V 2SA608 (ECNP:FCNP :GCNP) :QT0379(A:B) R153 1/10 GJ1K R156 1/10 GJ1K 9. 3V R433 1/2DJ 470 R159 DJ680 R432 1/10 GJ330 10. 8V 0V C432 500KK 1000A T431 AD0001 :AD0001A Q432-B L431 ZZ0008 7 T451-7 Q432-E 8. 0V 0. 3V L432 Z21B 0040N C421-1 Z09 Z08 Z07 R435 7WK 8. 2I R435-1 2 C437 250GJ 0. 47 B1 130V R225 J1 D135 MTZJ11C :UZ-11BSC 0V C137 25KZ0. 1FA :KZ0. 1FA R154 1/10 GJ3. 3K Q152 8. 7V C151 CJ39CA 8 1. 6V C135 25KZ0. 1FA :KZ0. 1FA V-OUT 7 (2V) R150 3. 1V 1K A-IN 6 4. 0V Q151 3. 8V 3. 2V L152 8. 7V L2B9 220KN R155 1/10 GJ1K Q431 2SC1627 (O:Y) :2SC2274 (E:F) 2. 4V 3. 1V C433 500KK 3900A R434 2SJ 390 B4 24V C434 35EM 47CD J213 J C430 500KK 1000A R224 1K R223 DJ150K C222 PM2. 2X 0V X151 F32B3. 2V 0140N Q153 2. 3V X152 F32B0090N R157 1/10 GJ 910 R158 1/10 GJ1K R431 1/10 GJ330 0V Q154 D221 1SS133 :1SS176 C226 100EM1AE R226 39K . SIF-IN 5 IDENT 4 (T. B) IF C/R IF C/R 0V 6. 1V R227 D222 10K DS442X :1S1553 :1S2076A :1S2471 D481 EU1 C481 500KK 2700A R481 180K PRO TECT X161 F31B0030N C141 R141 1/10GJ CJ 56RA 6. 8K R161 330 C161 CJ100CA L141 L2B9 6. 0V 100KN 3 C146 CJ12CA 6. 0V 2 3. 1V C142 25KZ0. 1FA :KZ0. 1FA C144 KZ 0. 01FA C140 CJ 15CA D141 1SS265 T141 SL0005XV R143 5. 6K R144 1/10 GJ1K L' R149 1/10 GJ22K Q141 2SC536 (E-NP:F-NP :G-NP) :QT0378(A:B) R147 47K D445 1SS133 :1SS176 R448 1/2DJ 330 D442 1S1553 :1S2076A :1S2471 :DS442X D446 UZ-7. 5BCC :UZ-8. 2BCA C445 EM10 Circuit side/ Lato del Circuito 1. 8Vp-p 64µs C482 250GK 0. 1P R482 5. 6K D482 1SS133 :1SS176 R447 4. 7K C3842 SCART 1 OUT VC141 C143 C3C2 1000N KK 3900BA R142 1/10 GJ5. 6K R145 1/10 GJ 22K POS /NEG Q142 2SA608 (ECNP:FCNP :GCNP) :QT0379(A:B) C3842 C3842 C145 KZ0. 01FA 8. This circuit diagram covers a basic or representative chassis only. There may be some components or partial circuit differences between the actual chassis and the circuit diagram. s Diode 1S1555 may be replaced with 1S2473, 1S2076 or DS472 unless otherwise noted. sTransistor 2SC536(Q, R, S), 2SC1740(Q, R, S), 2SC945A(Q, R, P) or 2SC1815(G, O, Y) unless otherwise noted. s Transistor 2SA608(E, F) may be replaced with 2SA933(Q, R), 2SA564(QA, RA), or 2SA1015(O, Y) unless otherwise noted. Expression of capacitance and resistance in circuit diagram. Capacitance (Example) 1000 C M 2000 D Characteristic Capacitance value (220pF) Tolerance (±20%) Kind(Ceramic) Rated voltage (1, 000V) Resistance (Example) 1/2 N J 1. 2 Resistance value (1. 2) Tolerance (±5%) Kind (M. carbon) Rated wattage(1/2W) J= ± 5% K= ± 10% M= ± 20% T, A, U, D : Electrolytic C, K, B : Ceramic F : Mylar film M, N : Polypropylene Z : Metallized paper D : Carbon N : Metallized carbon S : Oxide metallized W : Wire wounding C : Solid Terminal guide E B C B E C Chip Components N/2 N/2 + 1 1 A K B E 8 NC C3814 Transistor C EC B N A K Diode K A B C E B C E K 9 Resistor 10 C3805 6 G C3843 0V A Part No. SKP20190 F3JLY (SHEET 2/2) C : Collector B : Base E : Emitter A : Anode K : Kathode 3 12 1 2 3 4 5 67 123 12 x 103= 12k C3802 R3802 D161 1SS133 :1SS176 B R3815 8 R3841 C3841 R3842 R3841 X3801 TEST 7 OUT R X3801 C3806 0V R3805 R3803 R165 1/10 GJ1. 5K 1 C3813 X3811 R3841 C3803 TEST 8 IN 0V Q162 2SA608 (ECNP:FCNP :GCNP) :QT0379(A:B) C3812 R3841 Q3831 IC3801 Q3801 Q161 2SC536 (E-NP:F-NP :G-NP) :QT0378(A:B) C164 J1 J3806 C3831 X3815 Q3831 R3804 16 R164 1/10 GJ4. 7K R166 4. 7K 1 X3812 C3834 J3802 X3801 B6 12V J3807 J3831 Main Board /Pannello Principal Component Location/Lato del Componente SW1901 SW1902 SW1903 SW1904 Prog. Prog. + Vol. Vol. + Video- Audio- Audioinput input-R input-L Headphones RC Pre. amp 47 GENERAL BLOCK DIAGRAM FOR EB4 CHASSIS IC801 CPU Control Keys 10 2 3 4 5 17 18 24 51 52 1 7 L/L' T141/VC141 VIF ADJUST X131 SAW Filter 45/46 14 16 3 2 24 23 22 21 15 13 Q151 7 R-Y/B-Y 28/29 R-Y/B-Y 30/31 CVBS In Q2601 Q2611 20 19 R-Y/B-Y 32 18 R Q2621 G B Q431 1 37 41 48 H-Drive Q432 H-Outpit HV Q152/Q154 B G R BLK External CVBS in Internal CVBS in 2: Bright 3: Contranst 4: Colour 5: Sharpness V-In Functuin In(AV1/AV2) V-In CVBS In RGB/BLK In 6 1 8 Out 3 4 Out 7 2 V-In Audio I/O Video I/O Video I/O Audio I/O 21P Scart: AV1 21P Scart: AV2 Audio In Video In LR T481 RC Transformer Q681 SW601 Main switch 6 SCL SDA 49 50 IC801 CPU 5 IC001 Audio-output Audio Board VR641 +B ADJ. Q641 IC802 Memory IC810 Band sw. VL VH U TU IF IC802 Memory D615 Photo-coupler Q171 IC1202 CVBS int/ext sw. IC1201 CVBS AV2 sw. F601 Fuse Q611 Q613 Q612 IC651 +12V TP-D IC652 +8V VC141 T141 Tuner T611 Converter Transformer CRT Unit SIF Board Q462 VR462 H-Width TP-B IC810 Band SW. IC201 IF/Video/Croma/Def. Audio I/O SIF In IC271 1H Delay 11/12 14/16 Q461 Q501 IC271 1H Delay VR361 H-Centre VR131 AGC IC501 V-Outout VR501 V-Size SIF Unit Audio Unit IC281 SECAM 9/10 Q432 H-Output IC281 SW501 V-Centre TP-E T101 T102 L/L' Power Supply Circuit T451 Flyback Transformer A101 Tuner IC1202 Int. /Ext. J213 IC1201 AV2 SW. Audio Out L, R IC201 IF/Video/Chroma/Def. Output V-Drive 4 2 T611 Converter Transformer B6: 12V B8: 5V B7: 8V FBT Scart 2 Scart 1 R224 AC In Q612 Q613 IC651 IC652 B1: 150V B2: 25V B3: 15V B4: 24V V-Feedback H V Audio In L, R IC001 Audio Output 1/ 5 10/ 8 L, R Speakers C512 VR501 DY CRT Board /Pannello Cinescopio Circuit side/Lato del Circuito SERVICE REF NO: C21ES56NF-04 SERVICE REF NO: C21ES56NF-07 Component Location/Lato del Componente REGOLAZIONI DI SERVIZIO TECNICO REGOLAZIONE DELL'ALIMENTATORE B1 1. Regolare VR641 in modo che sia centro meccanico, prima di premere l'interruttore principale. Sintonizzare il ricevitore sull'oscillogramma circolare PAL. Regolare i comandi di luminosità e contrasto sui livelli normali. Collegare il misuratore V digitale su "TP-B". Servendosi di VR641, regolare il voltaggio su 130 ± 0, 5 V (per 21 pollici). Servendosi di VR641, regolare il voltaggio su 150 ± 0, 5 V (per 25 pollici). Per regolar il livelli, premere il tasto livello. ALLINEAMENTO DI CIRCUITO + 10k 0. 002µF 75 1k a b SERVICE REF NO: C21ES56NF-04 VR611 R-BIAS VR621 G-BIAS Q621 VR601 B-BIAS Q601 VR612 R-DRIVE VR602 B-DRIVE Q611 Q641 8. Regolare VR di schermo per un solo colore in modo che sia ben visibile. Allineamento VIF IMPOSTAZIONE DC 15. 5V Tensione AGC (4. 3-4. 5V) Sonda di uscita Sonda di ingresso Marker frequency Sweep ATT 0dB=176mVrms/75 C644 + IC201-pin48 IC201-pin45 (Side b) IC201-pin7 38. 9MHz 20dB Regolazione Sonda di ingresso Sonda di uscita [REGOLAZIONE VR DEL BIAS (POLARIZZAZIONE)] 7. Servendosi di VR602, VR612 o VR622, regolare la linea in modo che sia bianca. Per tornare al modo di funzionament TV, premere il tasto Richiamo. Forma d'onda VIF P REGOLAZIONE AFT 1. Sintonizzare il ricevitore sulla stazione più chiara. Servendosi di T141, regolare AFT per ottenere l'immagine migliore. Servendosi di T141, regolare "P" in modo che sia di ampiezza massima. REGOLAZIONE AGC NOTA: Non tentare questa regolazione con un segnale debole. [. . . ] Riconfermare l'alto voltaggio. Allineamento Pilot IMPOSTAZIONE Oscilloscopio Ingresso di desidera SW di sistema Deviazione Modo IC3401-pin5 Sistema B/G 27kHz Stereo Regolazione Servendosi di T3401, regolare "P" in modo che sia di ampiezza massima. Forma d'onda REGOLAZIONE DI CENTRO-H 1. Sintonizzare il ricevitore sull'oscillogramma circolare. Regolare il centro-H servendosi di VR361. 6. [. . . ]

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