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ARCHIVED FORUM -- April 2007 to March 2012
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This is the first Archived Forum which was active between 17th April 2007 and 1st March February 2012

 

Latest post 11-19-2010 1:48 PM by Paul. 4 replies.
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  • 11-19-2010 7:41 AM

    • Paul
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    laser unit wanted for beogram cd 3500/4500 CDM4

    Please PM me for offers

     

    Thanks

     

    Paul

  • 11-19-2010 10:23 AM In reply to

    Re: laser unit wanted for beogram cd 3500/4500 CDM4

    Are you sure that your original laser is faulty??

    Who diagnosed the fault??

    Regards Graham

  • 11-19-2010 11:02 AM In reply to

    • Paul
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    Re: laser unit wanted for beogram cd 3500/4500 CDM4

    well the symptom was that the cd spun and went on standby after a couple of seconds and then shuts off in standby. So I replaced all of the caps on the filterboard. The result is that the cd spins much longer 10-15 seconds and then shuts off in standby mode. I looked at the laser and i do not see any glow. That is why my diagnose is a faulty laser. If you have any ideas what (and where to measure) tht put my in a way to solve this i am gratefull

  • 11-19-2010 12:47 PM In reply to

    • Dillen
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    Re: laser unit wanted for beogram cd 3500/4500 CDM4

    Whatever you do, DON'T get tempted into adjusting laser current etc.
    You can easily measure the laser current but don't touch any adjustments.
    The majority of faults in these decks are exactly capacitors and the ones on the
    servo board in particular.
    C2103 needs to be a blue Philips. Forget low-ESR and other "hype" types.

    Martin

  • 11-19-2010 1:48 PM In reply to

    • Paul
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    Re: laser unit wanted for beogram cd 3500/4500 CDM4

    Dillen:

    Whatever you do, DON'T get tempted into adjusting laser current etc.
    You can easily measure the laser current but don't touch any adjustments.
    The majority of faults in these decks are exactly capacitors and the ones on the
    servo board in particular.
    C2103 needs to be a blue Philips. Forget low-ESR and other "hype" types.

    Martin

    I know. I replaced all the caps including the c2103 by a blue philips 47uF  I have done this also on a CD 5500 and that one works like a charm.  I will measure the current and if i got current my diagnose will be a faulty laser. Any other suggestions?

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