Dicas Reparação




Modelo - Chassis P7


Pesquisa: P7 Enviar Dica Resolvida
Resultados 252
Pedir dica reparação
MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySTP7
DEFECTIVE IC603 AND FD701 This unit would not tune or display the proper characters.We found the uPC and display to be defective.
SonyTAP7F
DEFECTIVE IC101/102 This unit was locked in the tape position.
SonyKP7225
DEAD, YOKE CONNECTOR LOOSE CAUSED OTHER PARTS TO FAIL Initial problem - dead. Replaced IC301 and Q202 on a boardplus F602, 1.6A fuse on board. This restored sound and Hi voltage.CRT's were blanked out. Further examination disclosed Q601, regulatordriver, Q609, regulator, R609 150 ohm at 1/8W open which d
SonyKP7225
POOR CONVERGENCE Poor convergence with some controls such as tilt and key stonenear limit of their range.
SonyKP7220
KEYSTONE, REPLACED D5313, D5312, Q5537 Keystone effect on all three tubes. Pix normal at top butnarrow at bottom.
SonyKP7220
PICTURE DISTORTION, REPLACED D5319 Overscan.
SonyKP7220
NO PICTURE, CONNECTOR DA-5 INTERMITTENT Connector DA-5 gets loose and causes picture tubes to blankout, can also cause a line on green tube which burns to mark in tube.
SonyKP7220
PICTURE DISTORTION Set had about 8 inch overscan. Found set-up cord was18 inches too long.
SonyKP7220
INSUFFICIENT VERT HEIGHT, REPLACED C5521 Insufficient vertical height on all three CRTs: about 3inches short top and bottom of the screen. Found vertical sawtooth atbase of Q5510 (on DA board) reading 2.4Vpp, should have read 3Vpp.
SonyKP7220
INSUFFICIENT WIDTH, REPLACED IC-2003 "K" BOARD Unit suddenly had insufficient width to fill the screen.Voltage on 115V regulator on K board was about 10 volts low.
SonyKP7220
INCORRECT BLUE CONVERGENCE, REPLACED D5320 This unit had a blue convergence problem. The blue verticallines were wider than the red or green.
SonyKP7200
INCORRECT TUNING OPERATION TV would scan but would not stop on stations.


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.

Verifique se o esquema está disponível na área de downloads