Dicas Reparação SONY




Modelo - Chassis


Pesquisa: SONY Enviar Dica Resolvida
Resultados 18940
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MarcaModelo
(Chassis)
SintomaCausaSoluçãoPor:
SonyKV21VSK
Dead - lightning stikeTOP223 on st/by psu, fuse o/c, s/c bridge rect & chopper tfmr of st/by psu had burned off wire - able to repair
SonyKV21V6U
No pic- screen blank - OSD okIC401 CXA1855Q vi switching chip
SonyKV21V6U
Error message - asking to be reset all the timeEEPROM chip ST24C16FM6TR IC002
SonyKV21T3U
Dead - brief rustle of EHT & LED repeatedly flashes 6 timesLOPTx - will not run on dummy load (still trips) HT = 145v in fault condition - when LOP stage isolated with no dummy load, LED flashes X4
SonyKV21T3
VOLUME GOES TO MAX, NO REMOTE OR FRONT CONTROLREPLACE MICRO
SonyKV21T1U
No Txt, excess width/height, poor contrastReset eeprom - press on the remote on screen display key No 5 vol up key tv set will come on with TT on screen press menu
SonyKV21LS30U
Bright raster with fb linesAdj A1 or focus resets pic - until next time - new LOPTx reqd 1-453-345-11
SonyKV21LS30
Dead - LED flashes 11 timesR648 (330K) O/C in power supply.
SonyKV2184-34
Won't start/ loud audible buzz.Sometimes starts and switches off after a while.If stby pin(41) of Mp desoldered,all okReplace Str50115.
SonyKV2184-34
Won't start. Nothing heard upon switch-on.Diode D604 short circuited
SonyKV2184-34
Won't start, pin 41 (stby) of microcontroller is high.Replace Q003. No leak or any other defect was detected with a VOM.
SonyKV2184
Switches off on bright scenesR621 1R in psu slightly hi (1R4)
SonyKV2184
Dead - STR50115 overheatingReplaced chip (s/c pins 2 & 3) but still dead; D608 R2M diode s/c & PS801 800mA cct prot o/c
SonyKV2184
Chans won't lock when tuning & garbled OSDLA78LR05 5 legged 5v reg with µ reset built in faulty
SonyKV2170
Dead - PS603 o/cReplace the 1.0A IC Link [ICP-N25] PS603 (1-532-637-11) by the 2.5A IC Link [ICP-N75] (1-532-686-21). Add the MTZJ-T-77-5.6B Diode D613 (8-719-923-38) between pins 1 (cathode) and 9 of IC603. Add the MTZJ-T-77-5.6B Diode D614 (8-719-923-38) between pin 9 (cathode) of IC603 & ground.


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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