Dicas Reparação




Modelo - Chassis XR15


Pesquisa: XR15 Enviar Dica Resolvida
Resultados 40
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SonyKV27EXR15
NO SOUND ON ONE CHANNEL, REPLACE C-466 No Sound on one channel. Speaker actualy got hot from internalshort. Replaced the speaker and unit returned to normal. Several monthslater unit returned with the same exact problem however this time C-466was found shorted. -HQ COMMENTS: C-466 is the DC
SonyKV27EXR15
NO PICTURE SLEEP LIGHT ON, REPLACE C-500 Set has high voltage. Sleep light is on, but set has nopicture. Found .7Vpp on pin 31 of IC-301 (should be 2 volts). ReplacedIC-500 and IC-301 still not working properly. Found shorted C-500. -HQ COMMENTS: When C-500 (on pin 1 of IC-500) shorts, ver
SonyKV27EXR15
BUZZING SOUND, REMOVED SHIELD ON T-602 Buzzing noise coming from the set. Replaced T-602 stillbuzzes. Used RTV on the metal shield of T-602 - still buzzes. Removedmetal shield and customer is satisfied. -HQ COMMENTS: We will send your report to Tokyo. Please continue toreport to us infor
SonyKV27EXR15
NO SOUND - PICTURE OK, REPLACE IC-405 AND F-602 No sound - picture is ok. The 22 volts is missing from pin 9of IC-405.
SonyKV27EXR15
NO SOUND, REPLACE IC-405 No sound. Signal input to IC is ok however, there isno output. DC bias voltages are all near normal.
SonyKV27EXR15
HORIZONTAL LINES IN PICTURE, RESOLDER C-546 Horizontal lines in picture sometimes on top sometimeson the bottom. Looks like retrace but in reality it is ringing.
SonyKV27EXR15
NO PICTURE, IK RELATED TROUBLESHOOTING As you may have noticed, when servicing this and other unitsusing this particular IC-301, RGB lines at the IC level are blanked any-time the C board is disconnected. The main reason for this blanking isa cathode current detect line (IK). When the unit
SonyKV27EXR15
CLOCK GAINS TIME, SEE SB TVP087R1 Unit would gain two hours a day. The home tech at Costa Mesainstalled the modification (Tech Flash No. 39). Home tech informed meit resolved the problem.
SonyXR15
WIRING DIAGRAM OF FRONT END BLOCK IS INCORRECT Wiring diagram of front end block as shown on Page 16 of theS/M is incorrect. Pin numbers are backwards: i.e. #1 is actually #6.Diagram attached to original. -HQ COMMENTS: We will issue a S/B.
SonyXR15
POOR CONTACT AT CONNECTOR Intermittent audio (FM only). This was present w/radio andtape modes. I have seen two XR-15s with this 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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