Problem s pojačalom - protect

Sve o pojačalima
Post Reply
LaCroix
Registered user
Registered user
Posts: 803
Joined: Sat Jul 28, 2007 2:59 pm
Location: ZG

Problem s pojačalom - protect

Post by LaCroix »

Dakle ovako, pojačalo je Rockford Fosgate X7, http://www.epinions.com/review/pr-X7_A_Rockford_Fosgate_RF_Series_Mono_Channel_Car_Amplifier_1500_Watts_Car_Audio_Amplifier/content_308332105348?sb=1

Spojena na 4ohma, tjera dva Alpine Type R suba, 1242d, u kompresijama po preporuci proizvođača.
Naponski 50mm2, masa isto, probali smo i sa masom direkt na akumulator i opet isto.
Gain jako blizu minimumu, volume na pola i ode u protect, do tog svira uredno.
Poslije opet upali i opet isto.

Ima li tko ideju, do čega je i što još probati prije nego ga se odnese na popravak? Da li je tko imao dotičnog i ima li kakva caka što se spajanja tiče?

Imam i neke slike iznutra i shemu spajanja, ako treba stavim tu.
Last edited by LaCroix on Wed Sep 26, 2012 2:26 pm, edited 1 time in total.
LaCroix
Registered user
Registered user
Posts: 803
Joined: Sat Jul 28, 2007 2:59 pm
Location: ZG

Odg: Problem s pojačalom - protect

Post by LaCroix »

Image
Joke
Registered User
Registered User
Posts: 2062
Joined: Tue Jan 29, 2008 11:19 am
Location: Zagreb

Odg: Problem s pojačalom - protect

Post by Joke »

Jesi mjerio otpore na wooferima???
Image
2XSWR1021+ SPL DYN D8S=152,0db

Prodajem 2 komada SPL DYN SPL-300D1A 600€
LaCroix
Registered user
Registered user
Posts: 803
Joined: Sat Jul 28, 2007 2:59 pm
Location: ZG

Odg: Problem s pojačalom - protect

Post by LaCroix »

Ne, zašto?
marko_v
Registered User
Registered User
Posts: 2583
Joined: Fri Jan 15, 2010 9:00 pm
Location: BL - BiH

Odg: Problem s pojačalom - protect

Post by marko_v »

pa koje sad woofere imaš? 1222 ili 1242  ::)
Joke
Registered User
Registered User
Posts: 2062
Joined: Tue Jan 29, 2008 11:19 am
Location: Zagreb

Odg: Problem s pojačalom - protect

Post by Joke »

Pa čisto da otkloniš mogućnosta da neki ne radi :???:
Image
2XSWR1021+ SPL DYN D8S=152,0db

Prodajem 2 komada SPL DYN SPL-300D1A 600€
LaCroix
Registered user
Registered user
Posts: 803
Joined: Sat Jul 28, 2007 2:59 pm
Location: ZG

Odg: Problem s pojačalom - protect

Post by LaCroix »

1242, otpori izmjereni, u redu su.
Last edited by LaCroix on Wed Sep 26, 2012 3:28 pm, edited 1 time in total.
marko_v
Registered User
Registered User
Posts: 2583
Joined: Fri Jan 15, 2010 9:00 pm
Location: BL - BiH

Odg: Problem s pojačalom - protect

Post by marko_v »

pa onda ti je konačni otpor 1 ohm a to pojačalo čini mi se ima zaštitu i neće radit ispod 2  ;)

edit: greška! onda je 4 ohm i sigurno nije do toga :lol:
Last edited by marko_v on Wed Sep 26, 2012 3:14 pm, edited 1 time in total.
Joke
Registered User
Registered User
Posts: 2062
Joined: Tue Jan 29, 2008 11:19 am
Location: Zagreb

Odg: Problem s pojačalom - protect

Post by Joke »

Protect zbog previsokog otpora :lol:

Nosi ga na popravak, moja preporuka sedici, rockforde jako dobro zna ;)
Last edited by Joke on Wed Sep 26, 2012 4:08 pm, edited 1 time in total.
Image
2XSWR1021+ SPL DYN D8S=152,0db

Prodajem 2 komada SPL DYN SPL-300D1A 600€
mario328i
Newbie
Newbie
Posts: 23
Joined: Tue May 29, 2012 11:35 am
Location: Zagreb

Odg: Problem s pojačalom - protect

Post by mario328i »

joke,ova tema je jako poznata  8)
User avatar
davor-ri
Registered User
Registered User
Posts: 10345
Joined: Fri Mar 10, 2006 7:11 pm
Location: Rijeka

Odg: Problem s pojačalom - protect

Post by davor-ri »

kada je upaljen auto isto? da nije kod akua osigurač raskliman/izgoren pa gubi kontakt? Jel padne napon na ampu?
PB: 152,9dB     
Državni prvak: Street B 2012
Team Broken Windshield
http://www.akomisalj.hr/board/index.php/
LaCroix
Registered user
Registered user
Posts: 803
Joined: Sat Jul 28, 2007 2:59 pm
Location: ZG

Odg: Problem s pojačalom - protect

Post by LaCroix »

Nije do toga, mjeren je napon dok radi muzika i na upaljeno i ugašeno auto i u redu je..

Evo i slika na što se sumnja, tranzistori:
Image
Image
Image
Image

Jel zna netko gdje se mogu nabaviti i koja je cijena?
Last edited by LaCroix on Wed Sep 26, 2012 7:23 pm, edited 1 time in total.
User avatar
davor-ri
Registered User
Registered User
Posts: 10345
Joined: Fri Mar 10, 2006 7:11 pm
Location: Rijeka

Odg: Problem s pojačalom - protect

Post by davor-ri »

samo prije slanja na popravak probajte amp na drugoj instalaciji i wooferu, čisto da ne ispadne nešto drugo a amp ispravan :D
PB: 152,9dB     
Državni prvak: Street B 2012
Team Broken Windshield
http://www.akomisalj.hr/board/index.php/
LaCroix
Registered user
Registered user
Posts: 803
Joined: Sat Jul 28, 2007 2:59 pm
Location: ZG

Odg: Problem s pojačalom - protect

Post by LaCroix »

Jel ima kandidata da se sutra pozabave s tim? Plaćam cugu, čevape/što god.. netko sa već sprovedenom instalacijom, da može plug and play i vidjeti o čemu se radi.. auto se nalazi na po puta između Dugog sela i Sesveta.
Joke
Registered User
Registered User
Posts: 2062
Joined: Tue Jan 29, 2008 11:19 am
Location: Zagreb

Odg: Problem s pojačalom - protect

Post by Joke »

Daj im moj broj pa nek se jave, ja sam na žitnjaku doma.
Image
2XSWR1021+ SPL DYN D8S=152,0db

Prodajem 2 komada SPL DYN SPL-300D1A 600€
Post Reply

Return to “Pojačala”