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
.
They usually last for ever unless someone tweaks the laser current controls.
The turntable motor can be changed.
Andy
.
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.
Trying to track down which resistor to measure the laser current across.
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.
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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