Service manuals, schematics, eproms for electrical technicians
ARISTONA V432D-V432D 1962 SCH
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Category
AUDIO
SERVICE MANUAL
AUDIO
SERVICE MANUAL
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Looking for similar aristona manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar aristona manual?
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ARISTONA V432DV432D 1962 432 DV V432D
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Relevant AUDIO forum topics:
Sziasztok!
Szükségem lenne akár bontásból is egy Philips FR-732/00 erősítő fluoreszcens kijelzőjére (törött). Tudnátok segíteni?
Köszönettel
Attila
Egészítsd ki a címet!
Kalex
Hiya
I am repairing a Dynacord Powermate 1000-2 mixer/amp and have a question about DC blocking capacitors in the signal path.
I am getting a slowly dropping DC on the DISP1 node (output of I6AA op-amp) on switch-on. This is causing the green "signal present" LED to come on on that channel which takes about 30 seconds to turn off. It seems to be caused by a charge on C35A that dissipates slowly through R54A (1M Ohm).
It seems to me, it would have been better to put the C35A on the output of I5AA with a resistor to ground. Is there a reason why this would not work.
I have checked all relevant components and power supplies and I cannot find any faults but I'm sure this is not normal behaviour.
Any help greatly appreciated.
I already replaced the TDA 2030A audio output transistor and the sound returned but it is very noisy I didn't find any other faulty components, I suspect it's the speaker that burned out. The problem is that I don't have another speaker to test here
Sziasztok!
Nem javított valaki Pioneer VSX-452 rádióerősítőt? Elfelejti a beállításokat, állomásokat. Van ebben valami backup elem? A szervízkönyvet letöltöttem, átböngésztem, de lehet, hogy elnéztem valamit? Semmi elemet vagy akkut nem látok a rajzokon.
Nem javított valaki Pioneer VSX-452 rádióerősítőt? Elfelejti a beállításokat, állomásokat. Van ebben valami backup elem? A szervízkönyvet letöltöttem, átböngésztem, de lehet, hogy elnéztem valamit? Semmi elemet vagy akkut nem látok a rajzokon.
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