Re: Apple Cinema Display 27" No TBolt - Buzzing and then dead

Hi I bought a new psu, put it in and test it for a while.
and yes it works.

So i sold the display and everything worked great.

But after 3 months the buyer of the display told me, that de display now begins to flicker or went black. if he starts his mac mini (2009) sometimes.

Re: Apple Cinema Display 27" No TBolt - Buzzing and then dead

So, I managed to connect the Psu outside the display and took 5x12V (80mAH)motors to strain the PSU.
after couple of hours the orange film caps begann to buzz, louder and louder.

If u touch the orange with an isolated screw driver the buzz gets different.

I i decided to replaced those orange film Caps 2x 1uF 450V and 1x 470nF 450v.
hard to get those here in Germany. had to order those.

Psu for around 2 hours in Use. Let's see.
I give u an update

...

Re: Apple Cinema Display 27" No TBolt - Buzzing and then dead

exactly the same with mine. i could buy i new psu for around 150€, but there have to be the possibility to fix the old one.

no idea so far. pls let me know if something works.

Re: Apple Cinema Display 27" No TBolt - Buzzing and then dead

.. And? everything fine?

i got mine in the ofen and glued every cap to the board.
this worked for me for 2 weeks.

But now. the same its buzzing all the time and loud, very loud.

again. i put this in the often and resolder some parts.
let's see

Re: Apple Cinema Display 27" No TBolt - Buzzing and then dead

HI. i Got every Got damn Cap replaced. (twice)
the first 10-15 hours i hear nothing. then it starts to buzz really quit and gets louder.

it gets louder with brightness and macbook plugged. I run this with a mac mini and my macbook gets charged over the display.


anyone knows wich component also needs to replaced?