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23rd August 2011, 09:09 AM
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#1 |
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diyAudio Member
Join Date: Dec 2005
Location: West Yorks
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CDM 4/11
Its a long shot, but does anyone know of a source of a CDM 4/11 mech?
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Nick |
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23rd August 2011, 09:11 AM
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#2 |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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EBAY !
Either as a complete cd player or as a part Andy .
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If it ain't broke, break it !! Then fix it again. It's called DIY ! |
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23rd August 2011, 09:20 AM
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#3 |
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diyAudio Member
Join Date: Dec 2005
Location: West Yorks
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Yep, I am looking there, but I wondered is any of the folk here knew of anyone with a stash.
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Nick |
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23rd August 2011, 12:09 PM
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#4 |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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Are you sure the laser is gone?
They usually last for ever unless someone tweaks the laser current controls. The turntable motor can be changed. Andy .
__________________
If it ain't broke, break it !! Then fix it again. It's called DIY ! |
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23rd August 2011, 12:25 PM
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#5 |
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diyAudio Member
Join Date: Dec 2005
Location: West Yorks
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Not certain, but I have tried cleaning the outer and inner lens. I will try replacing the caps on the driver board.
Trying to track down which resistor to measure the laser current across.
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Nick |
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30th August 2011, 02:02 PM
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#6 |
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diyAudio Member
Join Date: Dec 2005
Location: West Yorks
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I have replaced the laser/swing arm with one from a CDM4/19 unit. I think with some success. The laser current has been set to the stated 50mv across the 4k7 resistor. And its working well with some disks, not at all with others.
I think (suggestions welcome) the problem now is the focus servo setting needs checking. In the absense of the official test disk I plan to use the error LED (Cambridge CD2) to try and find at least the center position. Not knowing how to put this player into service mode, I think setting with a normal disk playing is my best bet.
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Nick |
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