Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18945
Pedir dica reparação
MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKP53V75
RA2
intermittent no raster unit will run for days then it will go to no raster and no sound with Stereo Led flashing.The stereo led flashing is not the typical LED is to indicate the system control is waiting for a acknowledgement from the Jungle IC. When this set goes into the failure mode it kills raster and sound but High voltage remains. Closer inspection also finds the set has high voltage with horizontal and vertical deflection. Tracing the SDA & CLK signals finds the CLK is running 3.5 volts pp and the SDA runs at 5.1 volts pp. While the tech was working on TV the picture came back on again and the CLK line climbed to 3.9 volts pp. It never climbed to 5.1 v pp like the SDA line. Tech isolated all the plug in boards to try to get the CLK to rise to 5.1. Only when the TU101 was disconnected the CLK Line went to 5.1 volts Muller
SonyKP41T35
RA2
Ghost KP41T35 serial 9102191 Unit has ghost line across the screen. Tech will need the ""PT"" board. Noise artifacts are seen while looking at the Y signal out from this board. ""Muller
SonyKP53V75
RA2
Dead Unit is dead. Will not start up. Just has the flashing red LED on the front of the set. Disconnecting the connector CN501( which removes the 200 vdc load created by all 3 CRT drive modules) does not allow the set to turn on. Tech did not measure any voltages on the ""G"" board. These must be confirmed before we can possibly know where to go looking for what might be wrong. It is possible nothing is shorted in the power supply and we has an open start up resistor in the base circuits of IC601. Tech needs to check R609, R610, R611, R612. all are 220K and have been known to open causing a ""Dead Set"" condition. ""Muller
SonyKP53V75
RA2
dead KP53V75. Unit is dead. Will not start up. Just has the flashing red LED on the front of the set. Disconnecting the connector CN501( which removes the 200 vdc load created by all 3 CRT drive modules does not allow the set to turn on. Tech did not measure any voltages on the ""G"" board. These must be confirmed before we can possibly know where to go looking for what might be wrong. It is possible nothing is shorted in the power supply and we has an open start up resistor in the base circuits of IC601. Tech needs to check R609, R610, R611, R612. all are 220K and have been known to open causing a ""Dead Set"" condition. ""Muller
SonyKP46C36
RA2
DEAD KP46C36 serial 9002356. Unit is dead. C608 the main raw B+ filter capacitor is vented along with IC6601 shorted. It apparent the television either had a significant A.C. line voltage surge or C608 just took this time to blow. Either way the tech should replace C607, & C608 along with IC601. Muller
SonyKP46C36
RA2
DEAD KP46C36 serial 9010238. Unit has shorted horizontal output transistor for the third time. All three CRT's have been replaced two months ago. All has been well up to this point. The set failed again now we are faced with changing the CRTs again but we are at this point are going to replace the ""G"" board in its entirety ""Unit has shorted horizontal output transistor. ""G: board must be replaced as a complete assembly. Also all three CRTs are burned again. ""Muller
SonyKP53S35
RA2
DEAD SONY KP53S35 RA-2 chassis. Unit is dead. Tech ordered Q601 in the ""G"" board power supply section. No change in the symptom. ""After replacement, voltage checks indicated the E2, and B2 voltages at IC601 were 340 volts. E1 and B1 were always ""0"". One of the soft start resistors, R614 was open. R612, R613, R614, & R615 are responsible for the initial start up of this power supply. ""Muller
SonyKP46S25
RA2
CRT Unit has no output from the blue CRT. Swapping the green to the blue socket does not transfer the trouble. Unit will need the Blue CRT. G2 voltage running at 33 vdc on Blue CRT Muller
SonyKP53S35
RA2
CRT KP53S35 Unit has a LOGO of Bugs life burned into the red CRT. Unit will need the Red CRT. This should be an ICB to the store since this was damage caused by leaving a DVD player connect to the set with the Bugs Life CD in side. When not playing, and in the standby mode the logo will appear. Since the logo never moves and over a prolonged period of time the CRT's can be permanently damaged with an image burn in the phosphor Muller
SonyKP53S25
RA2
CRT KP53S25 serial 90222755 Tubes are burned from the PIP screen being on the screen for an excessive period of time OK for CRT replacement Muller
SonyKP46C36
RA2
CRT KP46C36 Serial 9005538 . Unit has a burn in the blue CRT. The unit has an excessive afterglow once the television is turned off. The after glow is only blue. No other colors have this afterglow. Tech will need Replacement CRT07MAC02B Muller
SonyKP41T65
RA2
CRT KP41T65. The tech is trying to replace the Red CRT but has received the wrong tube. Tech ordered from the service manual a 8-733-539-05. But it is the wrong mounting structure, and will not fit in the opening of the. Called Sony World Parts center and obtained the correct part number for the tube. Currently there is no way to find out what tube is in the set by simply looking up the number in the manual. The generic number must be compared to a new list the Sony Part has. We were lucky to find the part number on the original CRT of A-1501-367-A Muller
SonyKP41T65
RA2
CRT KP41T65 serial Needs blue CRT. Tech originally ordered the blue CRT by using the part number from service bulletin # 359R1 . What he ordered is a 8-733-539-05. is a A-1501-373-A which is a blue CRT. The correct part number is the A-1501-373-A. According to Sony World Parts center they have them in stock and can be shipped anytime Muller
SonyKP41T65
RA2
CRT KP41T65 9515238 Needs Green CRT. Tech originally ordered the Green CRT by using the tag on the original tube which is A-1501-372-A . What he received is a A-1501-373-A which is a blue CRT. I'm not sure who subbed the part but the correct part number is the A-1501-372-A. There are no subs for this tube at this time. According to Sony World Parts center they have them in stock and can be shipped anytime Muller
SonyKP41T65
RA2
CRT KP41T65 serial9515238 Tech needs CRT CRT...Tech is receiving the wrong tube the most recent tube to be received is A-1501-369-A which is a blue CRT The first wrong tube was A-1501-373-A also a blue CRT. Tech is getting the part number off of the tube frame and not out of the service manual. As long has he is using that number he will always get a -blue CRT. 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.

Verifique se o esquema está disponível na área de downloads