Post by justgreg on Mar 7, 2015 20:07:58 GMT -5
I had this BR player given to me because it locks up. If just plugged in and turned on it will be fine indefinately and you can scroll through menus. Insert a disc and the laser carriage homes just fine and the player waits for the next command.
Within 5 seconds or so of pressing Play the heat sinked processor on the control board heats up and the player locks up and won't do anything. I sprayed freeze on the processor heatsink to verify this and watched it very rapidly melt and thaw within seconds. I gently tried to move the laser carriage while it was locked up and to me it seemed to put up a fight. I took the drive apart and didn't see any signs of broken parts or over travel.
Not being able to find a service manual I can only guess so here's guess number one. I think the laser is drawing too much current or has a dead short.
So a couple questions:
1) Should the laser emit light when observing it when the unit is powered up and the carriage aligns?
2) Are laser voltages adjustable?
3) If so, what are the average nominal voltages?
It isn't that I don't have other better players...I've just run out of things to work on so dragged this out of the Someday Corner.
Within 5 seconds or so of pressing Play the heat sinked processor on the control board heats up and the player locks up and won't do anything. I sprayed freeze on the processor heatsink to verify this and watched it very rapidly melt and thaw within seconds. I gently tried to move the laser carriage while it was locked up and to me it seemed to put up a fight. I took the drive apart and didn't see any signs of broken parts or over travel.
Not being able to find a service manual I can only guess so here's guess number one. I think the laser is drawing too much current or has a dead short.
So a couple questions:
1) Should the laser emit light when observing it when the unit is powered up and the carriage aligns?
2) Are laser voltages adjustable?
3) If so, what are the average nominal voltages?
It isn't that I don't have other better players...I've just run out of things to work on so dragged this out of the Someday Corner.
