Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SONYKV 2970 T
AA-2B
Tem todas as tensões mas,ñ liga.R 539 (o,47) Mesmo c/esta R alterada o +B fica normal mas,a TV ñ liga.CuidadoEsper
SONYMHC-EC68USB
SEM SOM, CD INOPERANTE.RELÊ RY002 NÃO ARMA. Q619 COM FUGA DE EMISSOR PARA COLETORTROCA DO Q619 (SMD).PIMENTA
SONYHCD-EX8
Em proteçãoIC 690 , Regulador de 9VTroca do mesmo ! Obs: so funciona com o cooler (ventoinha)VITALTEC
SONYKV29FS100
BA5D
Ao liga o power ela aciona o rele mas não tem alta, sem +bR630 (330K) fonteVerifique as R's 627, 629 e 630 de 330k.joaomvjr
SONYKLV32S300A
Não funciona (Fonte em curto)Fusível estourado e Q 6103 (Fet) 2SK3683- Substituir por 2sk2996, pois o original não se encontra no mercado. Funcionou beleza.Adilson - Maceió/AL.
SonyKV20EXR20
HORIZONTAL SWEEP KV20EXR20 Insufficient horizontal sweep IC603 is the wrong IC for this chassis. On the G"" board all the B+ on the supply. IC503 is defective SEC135. ""Muller
SonyKP61XBR200
RA4
RASTER KP61XBR200. Unit has a symptom Unit has an intermittent symptom of loosing raster every hour or so. When the raster disappears the stand by LED in front blinks on and off. In about 15 minutes or so the set will replace CR CG CB, and A boards under the SAYES Muller
SonyKP53XBR200
RA4
OSD KP53XBR200. Unit will not loose the on screen display data that shows the program material, length of time, type or program, rating, ? etc. This is the XDS (extended data services) information that is broadcast in the VBI. It is selected of the customer has the XDS feature turned on. We could not turn this unit off. Suggest tech to enter the tech menu and initialize the EPROM by pressing ""8"" the ""Enter"". This corrected the symptom. ""Muller
SonyKP61XBR200
RA4
NO RASTER KP61XBR200. No Raster but has sound. Unit will operate for several days then loose raster. During the episode the Timer Led will blink as it does during the warm up sequence The LED is blinking 5 times. This is an indication of a IK error. Since it is so intermittent I suggested that he could replace the A, CB, CG, & CR boards. These are covered by the S.A.Y.S program. It is possible that a tube is causing this trouble but we cannot confirm it unless we see the symptom. The replacement of the boards is an attempt to eliminate 4 possibilities of the IK generating and sensing circuit. Muller
SonyKP53XBR200
RA4
Lines KP53XBR200 serial 9008681. Unit has a faint vertical line in the picture lines in the picture. Only shows up on tuner video. Unit needs KIT T-9986-0653 per bulletin # CSV-1 #402. Kit consists of 9 resistors, 4 capacitors, a 22 inch wire connector, a wire tie, and instructions. Muller
SonyKP61XBR200
RA4
CRT Unit has all three CRT burned from running at the store. Unit was sold as a open box item with the tubes already burned. Once all the tubes were installed the tech could not set the Green. Green. During the setup of the Green CRT the unit gave an Error 80. This error code is an indication the GREEN SKEW is off. There are no electrical adjustments for green skew. What need to be moved is the mechanical rotation of the deflection yoke. The auto convergence is an very unforgiving if the yoke has any tilt at all. Muller
SonyKP53V80
RA3
shutdown KP53V80 serial 9001172 Unit will turn on and a picture will appear but it will periodically arc and shut down. Blue CRT defective. Arcing in neck. Visual arcing. Muller
SonyKP53V80
RA3
rster KP53V80 After the set is turned on the raster will appear as a bright screen with video. The brightness is intense and lacks contrast. The OSD menu is also missing. This phenomena is caused by one of the IK buffers on the CRT driver boards. The condition should be treated by replacing All IK buffers and replacing the Spark Gaps The following transistors are the IK buffers Q733{CG board} Q764{CB board} & Q706{CR board). They are hidden by a heat sink for the Video output transistor. Tech needs to order the spark gaps for each CRT module and replace the defective IK buffer. IK buffer number is 8-729-200-17 and the spark gap is 1-517-729-31 Locations for Spark gaps are Muller
SonyKV53V80
RA3
RETRACE LINES KV53V80 serial 9001186. After the set is turned on the raster will appear as a bright red screen with video. Pulling the red CRT socket and turning on the set we measured the Collector of Q706 The red IK buffer. It should have been ""0"" but it was 9 volts. Replaced Q7056 and did the factory upgrade on the all the CRT modules corrected the problem.Tech replaced the spark gaps for each CRT module and replaced the defective IK buffer. IK buffer number is 8-729-200-17. The spark gap Pn# 1-517-729-31 with locations of SG702, SG732, SG762. ""Muller
SonyKP53V80
RA3
raster KP53V80 After the set is turned on the raster will appear as a bright screen with video. The brightness is intense and lacks contrast. The OSD menu is also missing. This phenomena is caused by one of the IK buffers on the CRT driver boards. The condition should be treated by replacing All IK buffers and replacing the Spark Gaps The following transistors are the IK buffers Q733{CG board} Q764{CB board} & Q706{CR board). They are hidden by a heat sink for the Video output transistor. Tech needs to order the spark gaps for each CRT module and replace the defective IK buffer. IK buffer number is 8-729-200-17 and the spark gap is 1-517-729-31 Locations for Spark gaps are Muller


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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