Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
Jules00

Probleme amp. DOGGED SX1000

Recommended Posts

Salutare. As vrea sa stiu daca exista pe undeva pe lumea asta vreo schema electronica de la amp-u asta. Treaba e ca am 2 de reparat cam cu acelasi defect si nu prea stiu de unde sa pornesc. Din cate am vazut ampu are masa flotanta. Treaba e ca un cond de filtrare (cel pus intre -Vcc si masa) pocane dupa cateva secunde de la alimentare. Am verificat finalii si-s ok. Si inca o questie care pe mine m-a uimit. NU exista izolatie intre C tranzistorilor si radiator (care e pus la masa flotanta). Cum D-zeu functioneaza ampu asta, nu stiu....Mersi pt. raspunsuri. Salut.

Share this post


Link to post
Share on other sites

Chiar nu stie nimeni macar cum functioneaza ampu? O idee....ca sincer, nu am vazut concept din asta... :axe:

Share this post


Link to post
Share on other sites

Mi-am facut eu o parte din schema. Treaba e ca la drive+ si drive- mergeau niste zennere care (cred ca premeditat) s-au ars si mai erau inca vreo 2 zennere si 2 tz smd care s-au ars, bineinteles. Dupa cum se vede, "chinejii" au gasit o solutie sa nu mai puna 8 amarate de foi de mica pentru izolatie...M-apu ca fac o comanda pentru prefinali.....va zic daca iese ceva!

Share this post


Link to post
Share on other sites

Treaba asta cu masa flotanta nu e inventata de "chineji" din fericire. Majoritatea amplificatoarelor profesionale (in special cele care folosesc MJ-uri in finali ) au colectorul la masa . Cauta ceva scheme de qsc (seria one) si electrovoice-uri mai vechi . De acolo sunt inspirate ampurile Dodge.si... dodge nu sunt facute in china

Share this post


Link to post
Share on other sites

MERSI mult.....mi-ai salvat pielea :tonqe: ...Intr-adevar am vazut pe ele ca scrie "Made in EU".....Chiar asa sa fie??

Share this post


Link to post
Share on other sites

din cate stiu eu, dodge sunt facute in tarile sovietice

Share this post


Link to post
Share on other sites

Are cumva cineva vreo schema de la acest amplificator ? O schema completa vreau sa spun.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • 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.