Dicas Reparação




Modelo - Chassis KV2601


Pesquisa: KV2601 Enviar Dica Resolvida
Resultados 11
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV2601
DARK VERTICAL BARS IN PICTURE, REPLACED R812 AND C539 Dark vertical bars in pix, most prominent at left of screen.
SonyKV2601
NO AUDIO, REPLACED IC2001 No sound.
SonyKV2601
SUB PART Kansas City is supplying a 2SC3559 (P/N 8-729-204-94) perthe latest microfische. The new part is a T047 case style instead of theT060 original. Installation of the new part requires use of spaghettiinsulation on the leads, and looks terrible. -HQ COMM
SonyKV2601
INTERMITTENT ALL CHANNEL DISPLAY Intermittently unit would go to all channel display lightslit. Could not tune in any station when all lights locked in. Foundnegative line off flyback OK but after going through coil L511 found thatthe negative voltage sometimes missing. Also serial n
SonyKV2601
NO COLOR, REPLACED 3.58MHZ CRYSTAL No color.
SonyKV2601
PART NUMBER MISSING Servicer has KV-2601 with spark gap on C board shorted -schematic designation SG. The part number was omitted from the servicemanual of all the above listed models. -HQ COMMENTS: The spark gap in question is not available as a separatepart. It comes w
SonyKV2601
SNOW PICTURE, REPLACE C209 Snowy picture on all channels. Uncontrollable RF, AGC:measuring DC potential at Pin 5 of IC201 (CX555) netted approx. 2.5VDCwith no change upon varying RF AGC potentiometers. Measuring C209 outof circuit yielded approx. 20 microamperes leakage.
SonyKV2601
NO COLOR, REPLACED SHORTED CV301 After about 2-3 minutes of playing time color disappeared.Found CV301 actually physically shorted to 0 ohms.
SonyKV2601
NO UHF, REPLACED Q203 During programming unit would skip UHF band. 12V B+ was low(10.5V), Q203 was bad.
SonyKV2601
NO SOUND, REPLACED IC033 This customer has a lot of static from carpets in the home.A spark jumps from her finger each time she touched the channel selectionbuttons. This time it took out IC033. The last time IC2001 failedcausing no sound. On the IC033 Pin 10, ch. bias voltag
SonyKV2601
PICTURE DRIFT, REPLACED C516 Dealer expressed concern over the fact that although thevertical was normal and the vertical hold was OK, the position where thepicture locked in was not in the mechanical center of the control infact it was to one end of the control.


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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