Dicas Reparação




Modelo - Chassis KV20XBR


Pesquisa: KV20XBR Enviar Dica Resolvida
Resultados 23
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV20XBR
UNIT STAYED IN RGB MODE AND SLEEP Unit stayed in RGB mode and sleep. Remote inoperative, frontpanel controls inoperative except for power on/off. Screen black.
SonyKV20XBR
DEAD UNIT Dead. F601 was opened.
SonyKV20XBR
P/N FOR M BRACKET AND SHIELD CASE POWER SUPPLY BLOCK I need the part numbers for 1) the plastic frame that the Mand D boards are mounted to, and 2) the metal cage that the GA and GBboards slid into. -HQ COMMENTS: The part numbers you asked for are as follows: 1) M. Bracket: 4-374-217-1
SonyKV20XBR
WILL NOT POWER OFF MANUALLY All functions worked except for manual power on/off. Whentrying to power off manually, the screen would blank and all the presetswould change (pix, color, hue).
SonyKV20XBR
CHANGING PURITY, CRT The purity would change when the unit heated up. Also itwould change when the set was vibrated/shocked.
SonyKV20XBR
FLASHING CHANGE IN VIDEO LEVEL AT TURN ON, IC101 When set first turned on, there would be a rapid flicker andchange in video level for about 5 or 6 sec, then pix was OK. This problemwas noted at base of Q403. At turn on, this voltage was very low andpulsating. Further checks revealed the problem to
SonyKV20XBR
UNIT WILL NOT COME OUT OF RGB MODE Unit stayed in RGB mode. Remote inoperative, front panelcontrols inoperative except for power on/off. Screen black.
SonyKV20XBR
NO COLOR AND HUE DISPLAY, REPLACED IC107 No color and hue display.


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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