Service manuals, schematics, eproms for electrical technicians
SONY D-E440 X
Type: 
(PDF)
(PDF)Size
765.9 KB
765.9 KB
Page
6
6
Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar sony manual?
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- Also known:
SONY DE-440 DE440 DE 440 E440 D-E440
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Relevant AUDIO forum topics:
Üdv! SA-EX100 aktív hangfalról van szó, a magassugárzója alig szól, szoktak ezek az elektrosztatikus hangszórók így megdögleni?
Tisztelt Fórumtársak!
A Sony ST-S120 tunerem monóban szól,de nincs sztereó jel.Automata hangoláskor,nem áll meg,annak ellenére,hogy a jelszint kijelző maximális jelet mutat. Fórumokat kutatva,azok tanácsát követve,kicseréltem a következő kondenzátorokat(rajzon piros pamaccsal jelölve)
C23=47uF 50v,C24=3.3uF 63V,C28=1uF 50V,C30=1uF 50V,C31=0.47uF 50V,C32=0.1uF 50V,C37=10uF 50V,C38=10uF 50V,C38=10uF 50V,C38=10uF 50V,C41=4.7uF 50V,C43=220uF 16V,C51=47uF 50V.
Így sincs sztereó jel. Egy lengyel oldalon azt írta valaki,hogy a LA1851N-ben a sztereódekóder rész tönkrement cserélni kell.Kicseréltem,mégse lett jó..Az IC-én a feszültségek rendben vannak.Az LC7218-as IC-nek kellene leállítani a VCO-t,de nem teszi.A két tranzisztoron(Q23,24) még nem ellenőriztem a jelet,arra gyanakszom talán azok,vagy a LC7218-as IC környékén kell keresni a problémát? Ha az a hiba,akkor lesz sztereó jel is? Előre is köszönöm a tanácsotokat,javaslatotokat!
Üdvözlettel: Feri
Sziasztok!
Került hozzám egy ismeretlen előéletű Sony TA-F317R típusú erősítő "javításra" de úgy néz ki, hogy nem is volt neki semmi baja azt leszámítva, hogy hiányoznak róla a hangerő, mély, magas, balansz szabályzó gombok. Ez speciel így néz ki, de nem hiszem, hogy ezek a gombok nagyon típus specifikusak volnának, jól jönne, ha volna valakinek rávaló gombok.
Hello, I got a problem with my Sony Receiver STR-DE 225.
There´s a sudden interruption of Audio in non defined intervalls - may be once ore 6 times during appr. 5hrs operation.
Interruption does not depend on Volume. Connection cables and speakers I´ve checked.
There´s a loud crack in both speakers, display shows for short time "PROTECTION".
After switching off and on again, everything operates normal until next interruption.
I removed from the inside of the receiver a lot of dust with a vacuum cleaner, but this didn´t help.
Unfortunately Sony has no documents for this device, as it is To "old" (1996), or could give me a hint,
in what cases "PROTECTION" might appear.
Is there anyone to give me a clue? Thanks
There´s a sudden interruption of Audio in non defined intervalls - may be once ore 6 times during appr. 5hrs operation.
Interruption does not depend on Volume. Connection cables and speakers I´ve checked.
There´s a loud crack in both speakers, display shows for short time "PROTECTION".
After switching off and on again, everything operates normal until next interruption.
I removed from the inside of the receiver a lot of dust with a vacuum cleaner, but this didn´t help.
Unfortunately Sony has no documents for this device, as it is To "old" (1996), or could give me a hint,
in what cases "PROTECTION" might appear.
Is there anyone to give me a clue? Thanks
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