BeoGram

Re: Beogram 3000 light bulb

Dillen — Tue, 29 Dec 2009 16:46:07 GMT

You're welcome

Martin

Re: Beogram 3000 light bulb

Leslie — Tue, 29 Dec 2009 15:23:56 GMT

Oh man, am I stupid. Took the whole thing apart, measured all the related parts and guess what, the light switches on only when the "lifting up" button is pressed.

Sorry for all the inconvenience (Martin)!

Thanks, I'm happy

Leslie

Re: Beogram 3000 light bulb

Dillen — Tue, 29 Dec 2009 08:13:56 GMT

The lamp lights up when the lid is opened if I remember correctly.
Anyway, the motor will spin nicely even with no platter and subplatter
and you should be able to operate the search buttons.

Martin

Re: Beogram 3000 light bulb

Leslie — Tue, 29 Dec 2009 03:46:08 GMT

How can I measure a voltage when both platters has to be removed to get access to the board. I presume that only voltage can be measured (bulb lights up) when the platter is spinning?

Re: Beogram 3000 light bulb

Dillen — Tue, 29 Dec 2009 03:36:23 GMT

Try measuring voltage from ground (transistor TR3 emitter or similar) to
each of the leads of the lamp holder.

Martin

Beogram 3000 light bulb

Leslie — Tue, 29 Dec 2009 03:31:57 GMT

Hi,

Anybody who can help me solving this fault with my Beogram 3000 type 5903?

Small issue though, but still, as a Beo perfectionist!

The bulb doesn't work. Initially I thought the bulb (12V) had to be replaced but it wasn't.

Checked both leads with a multimeter that runs to the connector on the board and they're okay, however no 12V.

I have some electronic basic skills but my skills in this case stops at the PCB board.

Is there a possibilty (stupid question?) that the transistor TR3 as shown on the picture is faulty, or could there be another reason why the bulb is not having the 12V?