Jump to content
ELFORUM - Forumul electronistilor

pioneer sa-750


Recommended Posts

Salut,am un amplificator pioneer sa-750,caruia un amic (meserias) i-a montat puntea redresoare invers(plus la minus).Pana sa-mi dau eu seama,mi-a fiert 2 condensatori ,arsi  finali,in fine am inversat puntea ,am gasit prefinalii si o mana de piese arse.Am tensiune de alimentare peste tot.Am verificat tranz.,rezistentele,nu mai stiu.Atasez schema cu tensiunile gasite,si piesele schimbate(cele incercuite)Tensiunile sunt masurate acum fara preuri si fara finali.Ceva pareri?

post-180901-0-09941300-1438591425_thumb.jpg

Edited by nelugavrila
Link to comment
  • Replies 5
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Posted Images

Inseriaza pe alimentari rezistente de limitare de 100Ω/10w sau chiar si 2 becuri de 100w/230v si monteaza si preurile si finalii.

Mai fa (temporar) si scurt intre bazele la prefinali pt a-i proteja la curenti pre mari.

 

Altfel nu vei putea sa masori nimic concludent.

Link to comment

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.Terms of Use si Guidelines