Dicas Reparação




Modelo - Chassis XR15


Pesquisa: XR15 Enviar Dica Resolvida
Resultados 40
Pedir dica reparação
MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKPR46EXR15
MECHANICAL SEALED TUBE INFOMATION Some of these units are using the Mechanical sealed type CRT's. -HQ COMMENTS: Serial numbers approximately between 9,002,601and 9,002,660 are using the Mechanical type CRT. All others are theSilicon type.
SonyKPR53EXR15
FREEZE MODE IS ACTIVATED BY VCR (SLV595HF) REMOTE RMTV1121 Using the remote(RMTV112A) from SLV696HF and activiting therewind function causes the KPR53EXR15 to go to the freeze mode. -HQ COMMENTS: We check a KPR46EXR15 in PR along with the RMT-V112A andhad no trouble. We feel the problem is in the micro or ROM.
SonyKPR53EXR15
VERY DARK MAIN PICTURE, CHILD PIX OK.,REPLACED IC2301 (E2)
SonyKPR46EXR15
DEAD/AUTO SHUT DOWN MODE, REPLACED C1712, AND F602 The unit is in shutdown mode. Temporarily taken out ofprotection mode. Found no vertical deflection. The negative 18V (F602)was open. Vert. Output chip okay. Found C1712 leaky. Reconnect theprotection circuit.
SonyKPR46EXR15
NO PIX, REPLACE CRT Previously out of focus on W.O. 0698093. Now, no pix - shortin CRT.
SonyKV27EXR15
PICTURE GETS DARK INTERMITTENTLY, RESOLDERED R-739 Picture gets very dark intermittently. It shows color only.
SonyKPR53EXR15
SPOT ON THE PHOSPHOR OF THE CRT, OPEN R-898 (N BOARD) Spot on the CRT phosphor.
SonyKPR46EXR15
SPOT ON THE PHOSPHOR OF THE CRT, OPEN R-898 (N BOARD) Spot on the CRT phosphor.
SonyKV27EXR15
NO PICTURE AFTER REPLACING IC-102 (MEMORY CHIP), SEE SB 99 After replacing IC-102 picture would blank. The same wouldoccur in the service mode. Thus, how do we adjust the unit if we can'tsee the adjustments? -HQ COMMENTS: Follow these simple steps: (Also see SB No. TVP0099).1. Before replacing IC-102, chart d
SonyKV27EXR15
NO POWER WITH REMOTE, REPLACED Q-604 Unable to activate power using the remote. I was able to getmomentary power on via the manual power button. Observed the voltage atbase of Q-601 the relay driver and it went to 1.2 volts then dropped to .4volts. The OVP line was low at 1.4V instead of
SonyKV27EXR15
LOSS OF COLOR IN UPPER HALF OF PICTURE, REPLACE D-308 Very intermittent (location G-13) there would be a loss ofcolor in upper half of picture, especially when program change occurred.
SonyKV27EXR15
DARK PICTURE, REPLACE Q-711 ON "C" BOARD Unit had very low luminance chroma present and predominatelyred. Looked very much like a low screen voltage problem. Troubleshootingthe C board showed 200V on R, G and B output collectors. They werenot turned on. Found Q-711 Base at .22V and Emitter
SonyKV27EXR15
DOES NOT RETAIN, OR ERASE SOME MEMORY SETTINGS, ROM IC-102 Channels 80 through 87 cannot be erased. Trapezoid lookingpicture and top screen sides reduced. When adjusting pincushion phase inservice mode, correction will be achieved but ROM won't retain new settingin memory when unit is unplugged.
SonyKV27EXR15
CRT BLINKS OFF WHEN SET IS WARM, REPLACE Q-711 ON "C" BOARD Transistor leaky E-C.
SonyKV27EXR15
NO PICTURE/NO DISPLAY, REPLACE CRT No picture and no display. Y/S inputs to IC-301 (pins 3 and 5ok). No RGB outputs. IC-301 pin 7 at 0.2vdc confirming IC-301 has pic-ture muted. G-2 voltage ok. IC-301 pins 19, 21, 23 all at 3.8vdc (shouldbe 4.2 - 7vdc), indicating missing cathode sam


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