Dicas Reparação

Modelo - Chassis KV2644R

Pesquisa: KV2644R Enviar Dica Resolvida
Resultados 7
Pedir dica reparação
EXCESSIVE G2 - CAN'T ADJUST Excessive G2 would not adjust with G2 control. One side ofresistor has B+ the other side had no voltage. Measured and found R-749open causing no ground return for G2.
DISTORED PICTURE, REPLACED C3004 Distorted picture: Two lines approximately 1/4 inch thick andspaced approximately 5 inches apart moving upward. They are mostlyvisible on channel 2 and 7 and radiates on nearby TVs on channel 2. Theylook similar to the lines seen when a VCR is put into
RETRACE LINES, REPLACED R749 Retrace lines in pix.
INTERMITTENT TIME DISPLAY, REPLACED NEON TUBE ND3051 Time indicator display would go out intermittently. Found bytapping the neon tube when the set was cold, I could cause the problem tohappen. But after the set warmed up, could not produce the problem.
INCORRECT TUNING, REPLACED IC2002 Set would stay in address position A at all times. I foundwhen I turned channel set switch on and programmed set, it would work OK.But if I shut the set off, and turned it back on again, it would come onin position A and could not be addressed again.
NO OPERATION, REPLACED L001 Although remote and manual controls did not work, unit wouldcome on with master on/off switch (intermittently).
NO TUNING LOCK, REPLACED C219 Would not lock on to any channel in program. AFT voltage pin#10, IC201 down to 0.4V.

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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