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MaccaAu
19-06-2016, 03:37
I put the CD74 back together, after testing the spare CDM1 laser from the CD84 which was working.

The CD74 mech is a philips CDM1, i load a shop (bought disc) it goes to read, but before that it ejects?

Wiring around wrong way? what are the possible causes.

The CDM1 jumper to the Power Supply PCB - there are 4 wires, leading to a 5 pin pcb, ? i have the wiring correct i took note, but is it possible the the - pin (hole) nearest to rca is blank?

Maybe the CDM1 tray is the issue?

** update - disconnected tray power and belt and manually loaded a disc - disc didnt read - maybe laser mech is not getting power? - hope cleaning the class lens didnt hurt it, i toook the whole unit apart and stored the laser mech on the table while i de-dusted the chasis **