Dicas Reparação SAMSUNG





Pesquisa: SAMSUNG

Resultados 3888

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
Samsung W124W6VNPicture darkens and lightens continuallyThis was due to a faulty first anode potentiometer, as its part of the l.o.p transformer a new l.o.p.t had to be fitted
Samsung TXB1940Red led blinks on / off, TV does not turn via power button and/or remote but after 20 minutes or so it turns on and works fineReplace R902, R901, R905, R903, R900A, Q902, and possibly the two one small and one large capacitors in the section labeled as the power supply. The board will be black under the components that are bad. Q902 is an NPN transistor and is hard to find.
Samsung SV-2303 SV633 Intermittent functionsCheck for dry joints on mode switch and clean off any grease inside the switch
Samsung CB7230WTHigh pitch frequency squeal from transformerFix, by replacing the main transformer which costs up to $350 Australian Dollars or doing it the cheaper way covering the capacitors around the Transformer in glue as they cause frequency to run through to the main transformer which make this noise
Samsung CT566 K51A No powerVoltage not changing on pin 18 IC901 SZM-368ET2
Samsung 20A5Partial field collapseCheck IC301 TDA8350Q and the 2 associated unmarked capacitors 10uF and 100uF, 63v and the 10ohms,5w ceramic resistor across pins 3/5 of the above chip
Samsung CB7230WTVertical failure common faultThe reason for the failure is because the yoke is low impedance. The TDA3654Q i.c. has been designed to handle 12 ohms and over. Heat is the reason it destroys itself, the best cure is to place a small cpu fan on the heatsink
Samsung CB7230WTPower supply flutters and standby light dims outReplace mains filter capacitor 220uF 400v, also make sure the 4 capacitors in the primary are replaced if they havent already been
Samsung CZ-21D83NSDouble picture or raster shiftedCheck R414 15K
SAMSUNG793VLiga após 30 segundos desligaTR 7461
SAMSUNG793VLed pisca, não oscilaR626 10k aberto
SamsungZ68top foldoverTDA8350 field/EW output chip IC301
SamsungZ68DeadAudio o/p chip IC603 TDA2616A s/c
SamsungWS32W8VDEXNo G & flaring or R/B similarly affectedReplace R508, R503 or R513 82k.
SamsungWI28W6VNDeadreplace processor chip SAA5553PS/M3/0069 probably caused by dry joint on chopperTX



Assistência TécnicaAs dicas apresentadas destinam-se a técnicos de eletrónica, a tentativa de reparação ou assistência sem ter conhecimentos de eletricidade e eletrónica, podem provocar danos mais graves aos equipamentos e, devido a tensões muito elevadas em alguns circuitos, graves danos fisicos que podem constituir um risco em determinadas reparações.

Não arrisque reparar equipamentos com tensões elevadas se não tiver conhecimentos técnicos para o fazer em segurança.

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