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B&W Zeppelin Air Random shutdown.
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Sajtisajti [ 03 дек 2019, 12:39 ]
Заголовок сообщения:  B&W Zeppelin Air Random shutdown.
привет! Greetings from Hungary. Sorry i need to write in english cos my Russian skills are way to low atm. : D

Is there a B and W Zeppelin air veteran here?
Its did not turn on. I replaced the psu caps and then its started, but its only working for 5 to 10 minutes, than its shut down or restart. (Sometimes shut down and never turn on again)

Can you give me any advice, where i start? Its a common problem i think. Some soldering gave up maybe on the motherboard?

Спасибо!
Rigata [ 03 дек 2019, 21:04 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
prijezhaiti k nam v zauralskoe ja vse vam pochinu.pirikataim proz
Sajtisajti [ 04 дек 2019, 14:29 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
Спасибо. Мы были там тысячи лет назад с некоторыми скифами. Климат в Карпатском бассейне для меня лучше. : D
mia [ 04 дек 2019, 14:36 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
Good photo's of cover with marking label and both sides of all PCB's ?
Sajtisajti [ 04 дек 2019, 16:16 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
mia писал(а):
Good photo's of cover with marking label and both sides of all PCB's ?

Thanks for the help!
They all looks good. Sadly there are no burned components. I hope these pics will fine.

https://ibb.co/j8Y8WX5
https://ibb.co/jfwY0xZ
https://ibb.co/T2q5Z7B
https://ibb.co/vxSRpZW
https://ibb.co/tqk3zPd
mia [ 04 дек 2019, 16:44 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
U7 on photo https://ibb.co/vxSRpZW was replacement by you ?
The boards could vibrate to the beat with loud sounds. Therefore, check with a magnifying glass if some solders are broken.
Sajtisajti [ 04 дек 2019, 18:38 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
mia писал(а):
U7 on photo https://ibb.co/vxSRpZW was replacement by you ?
The boards could vibrate to the beat with loud sounds. Therefore, check with a magnifying glass if some solders are broken.


Nope U7 was there like that when i "arrived". I only replaced capacitors.
Yes, i suspected that too. After the change of the caps i tested with high bass music with almost full volume and its worked. After 5-10 minutes its turn off if the volume high or low too.Спасибо за помощь!
I think its heat related problem. I inspected that two board with m.scope and sadly everything looked good. : /
In the end i'll resolder everything (too)..

(For the twist i got another zeppelin today with burned transistors on PSU and MOBO too, so i can't do a swap for test.. : D)

большое спасибо вам!
mia [ 04 дек 2019, 20:48 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.
May be needed https://www.abcelectronique.com/forum/s ... 915&page=1
Sajtisajti [ 05 дек 2019, 12:24 ]
Заголовок сообщения:  Re: B&W Zeppelin Air Random shutdown.  [РЕШЕНО]
mia писал(а):
May be needed https://www.abcelectronique.com/forum/s ... 915&page=1


Это отличная помощь! Спасибо!
Posted after 4 hours 30 minutes 24 seconds:
Oh my god.. Someone brought in a third Zeppelin today. At the moment we do a cross swap test. Its look a like i managed to repair the first PSU ant there are some problem with the main motherboard. (10-15min reset)

I'll report back shortly.

Try my best with this : )
Боже мой! Кто-то сегодня привел третьего оратора. На данный момент мы проводим перекрестный своп-тест. Похоже, мне удалось отремонтировать первый блок питания и возникли проблемы с основной материнской платой. (Сброс 10-15 минут)

Я сообщу в ближайшее время.
Posted after 3 hours 39 minutes 30 seconds:
YES!

I inspected the motherboard very closely. There was a bad soldering point! Its working now. Two more left.

ДА!

Я очень внимательно осмотрел материнскую плату. Была плохая точка пайки! Теперь работает. Еще два осталось.
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