Dicas Reparação Sharp







Pesquisa: sharp

Resultados 1461

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
Sharp51DS02GREEN PATCHES AND STRANGE COLOURS ON BRIGHT SCENEENTER SERVICE MODE (HOLD VOL- AND CH+ AND SWITCH ON) SELECT PAGE 00 AND SET POS 04 TO 24 POS 05 TO 2C AND POS 06 TO 4B
Sharp51CS-05H CSDead with short between C & E of LOPTrC602 1nF 2000v was causing it - leaky
Sharp51CS03H 59CS03HStuck in StBy .If no 300v across C708 check for continuity from D704 cathode to L703 . PCB sometimes damaged in transit .
Sharp51CS03H 59CS03HInt flyback lines ( may be red , greeen or blue )Flux becoming conductive on Q870 , 871 , 872 . remove transistors , clean pcb and transistors and replace .
Sharp51CS03H 59CS03HInt bleep from speakers or int no sound ( when hotAdd wire link from pin 22 IC301and pins 28 , 29 ( Gnd )
Sharp51CS03H 59CS03HField fault , or general modification .Add 1N4148 from emitter Q509 to cathode D513 ( cathode to E Q509 . Pt No RH-DX0045BMZZ ) . Change R534 for 390R ( Pt No VRS-T
Sharp51CS03HNo / int field collapseResolder L501 ( joints on body )
Sharp51CS03Slow start up then st/by onlyC712 220µ 25v
Sharp51CSDeadR643 22R 1/2w fusible had risen in value to 50R
Sharp51CSDeadC714 1000µ 10v slightly hi esr (0.8), R643 10R (22R?) looks burnt - replaced with 10R ½w
Sharp51AM-12Gred raster with flyback lines then shuts offQ875 on crt base - measured ok out of cct
Sharp4BSC DV6632Hvery faint colour lines on the topC501 VCEAGA1HW107M, C506 VCEAGA1VW107M leaky
Sharp4BSC DV6632Hrepeated failure of LOPTrresolder scan coil connections
Sharp4BSC DV6632Hline pulling, bent verticalsC623 4.7uF 50V next to Q603 regulator
Sharp4BSC DV6632Hframe foldover at the topC505 100uF 40V



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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