Dicas Reparação SONY




Modelo - Chassis


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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonySTRVX200
LEAKY DIODE D302 This unit would intermittently lose station (preset) memory.
SonySTRVX4
THERMALLY INTERMITTENT IC201 The AM or FM would periodically become distorted and sometimesmute.
SonySTRVX4
OPEN C854 There was no reset pulse for the microprocessor. Therefore,the unit acted very strange. For example, memory scan does not go up tomemory 8.
SonyMTL10
SLIDE PLATE STICKS Intermittently the cass. will not retrack back from themechanism to the cass. slider. After unit is unjammed, it will work upto 3 hrs. before failing again.
SonyCFSF11
GEAR ON RPH SHAFT CRACKS The gear on RPH shaft cracks and prevents the head fromturning. If the head turns only part way around, the mechanism will jamand destroy other parts. -HQ COMMENTS: Although the gear is mounted onto the head, the gearcomes with the part as illustrated
SonyCDP701ES
RF PLL AND CLV PLL OUT OF ADJUSTMENT Unit will not track discs with visible defect in program area.Some discs track on CDP-101 and CDP-200 with no problem. Possible causeof this could be the AUTO ANTISKATE circuit in the CDP-400 and CDP-701ES. -HQ COMMENTS: Careful electrical alignment, p
SonyCDP200
RF PLL OUT OF ADJUSTMENT The unit skipped in play mode.
SonyCDP200
FOCUS OFFSET AND RF PLL OUT OF ADJUSTMENT Although the objective lens searches for the focus point andthere is laser light coming out, the disc motor does not turn.
SonyCDP101
RF PLL AND CLV PLL OUT OF ADJUSTMENT The unit does not accept the customer's disc. Decca, Verdi,La Travia (400057-2). It worked fine with YEDS-1.
SonyCDP101
MALFUNCTIONING D/A CONVERTER IC507 The unit had an intermittent low pitched buzz in bothchannels. We found IC507 D/A converter to have an intermittent clock.
SonyWMF10
INTERMITTENT AUDIO Ground becomes discontinuous due to excessive lubricant onhead ground plate surfaces. Remove lubricant. Use Sony P-401G to Relube. -HQ COMMENTS: We will issue a bulletin on WM-10 lubrication pointsshortly.
SonyTCFX7
EXCESSIVE WOW AND FLUTTER PLUS MOTOR NOISE Motor comes with plastic clutch, which in time will comeflush against motor bearing, causing a grinding noise and wow and flutter.One solution is to put a small plastic washer at clutch shaft assy tostop it from going inwards against motor bearing. -HQ
SonySRF5
INTERMITTENT AUDIO - HOW TO SERVICE When the plastic interconnecting strip is removed, you cannothear audio (because the audio-tuner parts are separated). What is therecommended troubleshooting procedure? -HQ COMMENTS: 1) Complete B+ and ground connections for the tuner asoutlined on Pag
SonySPP11
NO VOICE SIGNAL THROUGH THE HANDSET SPEAKER The hand unit and the base unit communicate with each otheras indicated by an operational key pad and dial tone, but there was novoice through the speaker. Found C53 (0.047uF) was shorted inside.Replaced it.
SonyPSX55
PART NUMBER - DET SW CONTACT SLIDER A servicer tried to order the contact slider. Since the partnumber is not listed in the service manual, he thought it is included inthe cam control (#4-869-957-00) and he ordered it. But the contact sliderdid not come with it.


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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