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Forum Elektroniczne • Wzmacniacz WS-315
Strona 1 z 1

Wzmacniacz WS-315

: wt 22 mar 2005, 19:12
autor: ARTURRO
[ARTURRO]Mam mały problem z WS-315, jeden z konałów gra troszkę ciszej od drugiego (wytłumiony dżwięk). Zmierzyłem napięcie na wyjściach i jeden kanał LEWY ma -73mV ,a PRAWY ma +32mV. Czy może to być tego :?: przyczyną Czy jest to normalne taka różnica napięcia pomiędzy kanałami :?:
POMOCY :!: :!:

: wt 22 mar 2005, 19:42
autor: Tomi3108
Witam: Na wyjściu każdego wzmacniacza mocy w stanie jałowym (bez sygnału) powinno być ok 0V tolerancja ok +,- 50mV. Ale to nie od tego jeden kanał gra ciszej poszukaj potencjometrów którymi można ustawić sygnał jaki idzie na poszczególne kanały może idzie trochę podrególować i wyrównać głośność obu sygnałów. Jeżeli to nie pomoże trzeba szukać przyczyny w elementach tego ciszej grającego kanału .Jakieś rezystory bądź małe tranzystorki sterujące. Powodzenia 8) 8) 8) 8) 8) 8) 8) 8) 8)

wzmacniacz WS315

: wt 22 mar 2005, 20:09
autor: quiqek
To są objawy starego kondensatora elektrolicznego / może byc również uszkodzony / w regulatorze barwy dzwieku na wejsciu lub wyjściu. Dołącz równolegle np. 1 uF/16 V do któregoś z nich. Powodzenia! [różnica dziesiątych Volta w końcówce mocy nie ma wpływu na czystość dzwieku]

: czw 24 mar 2005, 0:08
autor: MarekM
Porównaj napięcia na tranzystorach przedwzmacniacza kanał L i P. Może być któryś padnięty, ale bardziej bym się skłaniał do wyschniętego kondziołka (elektrol.) sprzęgającego. Łatwo sprawdzić, 4uF7 i dokładać równolegle do elektrolitków w przedwzmacniaczu uszkodzonego kanału. Jak zaskoczy to go masz.

ws-315

: wt 05 kwie 2005, 16:34
autor: ARTURRO

ws-315

: wt 05 kwie 2005, 16:36
autor: ARTURRO

: czw 07 kwie 2005, 11:31
autor: ALTON_

WS315

: czw 07 kwie 2005, 23:47
autor: PI

WS-315

: wt 12 kwie 2005, 16:28
autor: ARTURRO
Wielkie dzięki za wyczerpujące odpowiedzi :!: :!: :!: :D
Niedawno udało mi się pozyskać schemat tego wzmachola, więc łącząc te wiadomości może mi się uda a raczej napewno powinno :wink:

: ndz 05 lut 2006, 18:29
autor: mam problem:(

Abo co zrobic

: pn 06 lut 2006, 16:37
autor: Gość

: pn 06 lut 2006, 21:10
autor: Gośció

: pn 06 lut 2006, 23:05
autor: Gość
niby czemu mommom problem wczorej zem podlonczyl glosnik 60vat do wzmacniacza niewiem jakie parametry mo wzmacniacz ale na nim mi tuba lazi tramezm 240vat i potym zem wsadzil ta wtyczka z tuby i mi nielazi a ta dolno mi lazi mogla ta na gurze sie spolic abo cos abo jak to naprawic niewiem