Dicas Reparação







Pesquisa: KV9200

Resultados 6

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV9200RETRACE LINES ON DARK SCREEN This unit had retrace lines with brightness control turneddown.
SonyKV9200130V WOULD NOT REGULATE 130V would not regulate. All components in power supplychecked good.
SonyKV9200PARTS INFORMATION MISSING I need assistance with the above unit. It seems that thecircuit was modified or changed during production and this was not shownon the S/M or the two existing supplements. This particular set has adiode D402 and Q410, Q411 added to the base of Q402.
SonyKV9200INCORRECT BRIGHTNESS OPERATION Right side of the screen is brighter than left.
SonyKV9200PART MISMOUNT On printed circuit board W, capacitor C524, the marks forpositive and negative connection are incorrectly placed.
SonyKV9200RETRACE LINES Customer objected to three-four vertical retrace lines onlyvisible while watching two channels 9 and 32. Lines appeared to sparkleas if they were being modulated with information. Scoping verticalblanking pulse, noticed excessive pulse width. Working



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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