Dicas Reparação




Modelo - Chassis


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(Chassis)
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SonyKV10FMR20
SHUT DOWN, REPLACED THE FLYBACK TRANSFORMER Set will shut down when it gets really hot. When you removedall the case cover, the set will run forever.
SonyTAAV521
NO AUDIO FROM CENTER CHANNEL - IC851 FAULTY 8-759-502-33 There was no sound from the center channel, the display willlight. By removing CNJ803 (7 pin flat cable), the unit will work.
SonyCPD1304S
NO PICTURE, ADJ SCREEN DISPLAYS A RASTER WITH RETRACE There was no picture, but if you adjusted the screen voltage,you had raster with retrace lines.
SonyCCDTR81
NO VIDEO/REPLACE Q304, VS-76 BOARD The unit did not have any video in playback or record. Thevideo signal was coming out of pin 28 of IC401, but it did not returnthrough pin 38. I found Q304 was biased properly but did not pass thevideo signal.
SonyKV27EXR25
BUZZING IN AUDIO, GROUND OPEN There was a constant buzzing in the audio. After extensivetrouble shooting, the servicer found the ground pattern from connectorA-23 pins 3 and 4 to connector A-24 pins 3, 4 and 5 were rubbed loose fromthe board for about three inches. Since it was und
SonyKV13EXR91
HUM FROM SPEAKER AT LOW OR NO VOLUME, SEE SB TVP0131 I have had two complaints on this model as well as othersabout when the volume is low or off, you can hear a slight hum from thespeaker. I assume this is normal since it seems to be on all units.Please give advice. -HQ COMMENTS: Please refer to TV Serv
SonyKV1380R
NO PURITY MAGNETS ON YOKE, T-9985-214-1 When these sets were set up, they used a purity strip aroundthe neck of the tube. There are no magnets on the yoke. When CRT wasreplaced there is no way to perform purity. Any ideas? -HQ COMMENTS: According to Supplement-1 (9-963-570-81) when a new C
SonyKV32XBR35
DIFFERENT E1 BOARD IN SET, ORIGINAL E1 CAN BE INSTALLED The set came in with an A-1346-132-A board in it instead of anA-1346-051-A as indicated in the service manual. Can we use 051-A since132-A is new and not available? -HQ COMMENTS: 132-A is used for FN with Closed Caption models this year. You can instal
SonyCDPC305
ROLLERS SHOWN IN S.B. #327 INCOMPATIBLE, ORDER X-4924-409-1 The servicer ordered a disc roller table part numberX-4924-457-1 per service bulletin 327 to replace rollers and only receivedthe rubber part of roller. The shaft did not come with it nor would therubber part fit on the old shaft. Should they come with
SonyCCDV5
IRREGULAR TAPE MOTION/HARDENED GREASE ON TENSION ARM The unit showed several problems such as eating tapes, tapepath problems and sometimes eject problems. The grease on the tensionregulator arm hardened and caused the arm to hang up at differenttensions. This caused different back tensions which caused
SonyGDM1936
PART NUMBER FOR FUSE LINKS PS-101 AND PS401 INCORRECT IN S/M The part number in the Service Manual for fuse links PS-101and PS-401 (1-532-839-21) is incorrect.- HQ COMMENTS: The correct part number is: 1-532-839-11Please correct your service manual.
SonyGDM2036S
NO OPERATION, SCREACHING SOUND FROM THE POWER SUPPLY.
SonyGDM1936
NO OPERATION, SCREACHING SOUND FROM THE POWER SUPPLY.
SonySLVR5UC
INTERMITTENT SNOWY PICTURE: SOLDER SHIELD OF RP76 BOARD The picture quality will intermittently degrade, turning tosnow, just like clogged heads. The picture would sometimes return tonormal by tapping on either rear corner.
SonyCCDTR9
UPPER DRUM DOES NOT FIT ON LOWER DRUM ASSEMBLY Upper drum assembly supplied by NPC will not fit on drummount. The replacement upper drum and the original drum are being sentfor your inspection. -HQ COMMENTS: Judging by the samples sent in, there may have been amachining problem with the new upper d


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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