Philips CDM4pro laser activation

i-s · 16th November 2003, 12:42 PM

Hi everyone...

I've recently purchased a Marantz CD16, which I'm using as a transport, and will be making various modifications.

The previous owner replaced the mech once, and reckons that the CDM4 keeps the laser powered up the whole time the player is switched on, and thus that the player will live longer if left switched off except when in use.

Is this indeed the case? Is there anything else that can be done to prolong the laser life?

EDUM · 16th November 2003, 01:19 PM

Hello Isaac,

To switch the laser permanently on does not matter if the lifespan of the laser is not critical. If it is critical the manufacturer would switch it on only during playback. So it is not a problem anyway.

For safety reasons I could imagine the laser to be switched of when not in use.

Ward

Bricolo · 16th November 2003, 02:14 PM

Maybe keeping it powered is better for the laser, than switching if on/off/on/off/on...

Cobra2 · 30th November 2003, 10:38 AM

-when the player is stopped.

Just checked, after changing laser in my own CD-16.

http://www.diyaudio.com/forums/showt...043#post273043

Arne K

16th November 2003, 12:42 PM	#1
i-s diyAudio Member Join Date: Nov 2003 Location: UK	Philips CDM4pro laser activation Hi everyone... I've recently purchased a Marantz CD16, which I'm using as a transport, and will be making various modifications. The previous owner replaced the mech once, and reckons that the CDM4 keeps the laser powered up the whole time the player is switched on, and thus that the player will live longer if left switched off except when in use. Is this indeed the case? Is there anything else that can be done to prolong the laser life?

16th November 2003, 01:19 PM	#2
EDUM diyAudio Member Join Date: Oct 2003 Location: Almere	Hello Isaac, To switch the laser permanently on does not matter if the lifespan of the laser is not critical. If it is critical the manufacturer would switch it on only during playback. So it is not a problem anyway. For safety reasons I could imagine the laser to be switched of when not in use. Ward __________________ The vast number of parameters involved in human hearing make imperfect designs certain.

30th November 2003, 10:38 AM	#4
Cobra2 DIY ! diyAudio Member Join Date: Apr 2002 Location: Stavanger, Norway	Laser is off -when the player is stopped. Just checked, after changing laser in my own CD-16. http://www.diyaudio.com/forums/showt...043#post273043 Arne K __________________ Ars longa, vita brevis

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16th November 2003, 02:14 PM	#3
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	Maybe keeping it powered is better for the laser, than switching if on/off/on/off/on...

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