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Resultados 81729

MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKPR41DS2
SHUTDOWN - LOW VOLTAGE POWER SUPPLY, REPLACED C-5080 At turn on, B+ and HV would come up and shutdown immediately.
SonyKV19TR10
VERTICAL FOLDOVER ON TOP OF PICTURE WHEN COLD, LEAKY C-534 When unit is first turned on, unit has foldover on top ofpicture. Once it warms up, it disappears.
SonyKV10FMR20
NO HIGH VOLTAGE - HAD SOUND IN RADIO MODE No high voltage.
SonyKV10FMR20
WILL NOT HOLD ANY MEMORY Will not hold any memory. Must reset all channels, volume andall secondary controls everytime you turn unit on. These controls are allin max position upon turn on.
SonySTRAV880
NO DISPLAY (PARTIAL) No graphic display of tone balance, volume, muting. Functionswould work and other parts of display would work.
SonySLHFT7
INTERMITTENT POOR FAST FORWARD AND REWIND During Fast Forward and Rewind brake solenoid would come oncausing poor Fast Forward and Rewind.
SonyKV27XBR10
VIDEO BLANKS, OPEN FOIL PATTERN BETWEEN Q-707 & Q-708 Video blanks: observed voltage at base of Q-707 but it was notcontinuous at collector of Q-708 on C board. Y signal observed at pin 3of IC-301 but no RGB output.
SonyKV1215
HORIZONTAL BENDING TOWARD THE TOP, REPLACED C525 Horizontal bending toward the top. I observed that thewaveform on the base of Q-501 looked fine, but at the anode side of D-502,distorted. Also, the horizontal hold locked at one end of its travel.
SonyKV27TW71
REPLACEMENT BOARD WITH SNOW, IC-303 REVERSED No picture only snow.
SonyDTC75ES
DOOR WILL NOT FULLY OPEN Plastic of front panel was interfering with opening of door.Unit worked fine without front panel.
SonyCCDTR7
NO RECORD/PLAY AUDIO No audio Playback/Record. AU-86 board comes off from theAU-85 board.
SonyTAE1000ESD
INTERMITTENT POPPING NOISE IN REAR SPEAKERS Intermittent popping noise in rear speakers.
SonyCCDV101
COLOR SHIFTS AND LINE IN PICTURE FROM CAMERA Colors shift and changes to the right.
SonyCDXA30
UNIT WILL NOT LOAD DISC Unit will not load disc, elevator will not come down. E-99shows on display.
SonyCDX7580
CLICKING NOISE AND WON'T ACCEPT DISK Unit comes in with complaint of clicking noise and won'taccept a disk. This gear meshes with worm gear No. 423 and the gear No.412 is plastic and doesn't seem to be holding up very well. ASC reportsseeing two or three units with the same problem.



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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