Hi

Im no prob on BC9300 but it seems to have same problem with dead capacitors as my Beogram 7000, this is just one of the threads about that:

http://forum.beoworld.org/forums/p/12146/90048.aspx#90048

I cant tell you tho IF this is really your problem tho... hope any other can tell you more...

Cheers

Jesper

Sweden

Clive wrote:

The cd doesn't spin after accepting a disk and the door then reopens.  I've tried a very light clean of the laser lens to no avail.  Are there any common faults or simple checks I could do with a meter for example before admitting defeat and taking it to the local store for a mechanism change out? 9300 is a type 2520, SW1.3, serial number 11684776.

Hope someone can help, Regards, Clive

 

Bumping this question in the hope that someone can help.  Do the capacitor problems that seem to crop up on other 9xxx Beocenters apply to the 9300?  I have been advised that because the 9300 has the later cd mechanism fitted then the infamous cap problem doesn't apply.  Hope someone can confirm this. 

Clive wrote:

I have been advised that because the 9300 has the later cd mechanism fitted then the infamous cap problem doesn't apply.

That was likely me.

It wasn't meant that the problem was NOT caps, just not the same.

From your other thread... It may be a different cap: C2815 causing the problem(s).

At least a place to start... anyone else?

I've got one coming in for repair in about 2 weeks with exactly the same fault - so the customer says.

I'll post back my findings on this after I have it repaired, but C2815 will be the first port of call.

Menahem

Hi Menahem,

I have attached a photo of the board in my 9300, Martin thought it may have been replaced at some time in the past as it was a recent type.  Be interested to know what is fitted to the one you get in.

Regards, Clive

And the reverse side of the board.

I dont know who told you that the cap problem doesn't apply.
It certainly does, though I obviously cannot guarantee that caps are at fault in your machine.
The SMD type caps will need replacing.
If you don't have the tools and/or skills to replace surface mounted devices, they can usually
be replaced by conventional through-hole components if you are handy with a soldering iron.

Martin

Hi Clive,

Thanks for the pics - that's a new one on me. The ones I've had in, in the past, have all been with regular TTH (Through-the-Hole) capacitors. I've not seen one yet with the SMD's. In general, SMD caps are far more failure-prone than regular TTH capacitors.

IIRC, it's got something to do with the extremely high temperatures when doing "reflow soldering" during production, something which was never done in the old days....

I learnt that through hard experience on my Tek oscilloscope - Tek used SMD's on one of the PCB's, and they leaked their corrosive electrolyte all over the fine traces - what a disaster. The other PCB's with TTH caps are still going strong.

When replacing the SMD caps, replace them with regular TTH caps, just soldered onto the SMD bases - the machine will have a longer trouble-free lifetime.

Menahem

These smd caps on the picture are definitly gone, defect. It's visible, that the top of the cap is already round and deformed, not flat any more. At least the two bigger ones have got pressure inside.

Replace them with quite normal caps and it will work again. 90% will do it... :)