Dicas Reparação

Modelo - Chassis KV5000

Pesquisa: KV5000 Enviar Dica Resolvida
Resultados 4
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NO START This unit int. would not start up. C611 was leaky andchanged in value. Also, whistle and develop severe pie crust effect.This was caused by C608/PR Bd, the cap had changed in value.
VIDEO DETECTOR ASSEMBLY PART NUMBER Video detector diode (D201) is enclosed in a can with R270and C225. Servicer claims that he cannot disassemble the can and wantsto know if part number for the assembly is available. -HQ COMMENTS: There should be no problem with disassembling the can an
DEAD Days to weeks after repair unit blows 2SC1034 chopper andfuse. Original service was chopper transistor and fuse replacement.Servicer did not find cause of this failure.
NO OPERATION WITH AC Set would not work on AC. All DC checks which we could thinkwere performed. Power supply simply would not start. Found waveform 27would appear for just an instant and die away. Transformer T606 checkedgood so C611 must be culprit.

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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