Originally Posted by JimLely
Everything proceeds normally for the first few seconds of recording and then on the screen:Recording Error
Can not record on this disc
E 3 54040990
'Protect Disc' is not on.
P.S. What do you think of the 'double fix' solution (assuming the firmware resides on the companion PCB)?
ok, i presume that this thing DOES read and play a store bought re-recorded DVD.
regarding the error being displayed, it does indicate that you've most likely got a Write Laser issue, be it a weak laser, or insufficient write current due to a bad passive component responsible for providing that current ( ok, possibly a transistor as well ) ...
while write current originates in raw form from the unit's power supply, it is passed to the burner unit VIA electronics on the companion PCB, and the companion PCB does whatever switching and conditioning might be necessary to supply that current to the burner unit's laser. the small pcb on the burner unit, itself, may also participate ( either passively or actively ) in the supply of write current to the laser.
again, for our purposes, it boils down to either cleaning a lens or replacing the burner unit. in the unlikely event that a component on the companion PCB is bad, the worst case scenario would be replacing the companion PCB.
i would await a possible confirmation from 234 that i am correct on the firmware issue, but assuming that i am, i believe you would probably fix the 2160 with the replacement burner unit, and your 513 with the replacement main PCB.
again, this presumes that the 513 DVD burner unit is a correct physical fit in the 2160 chassis. you should be able to tell by just removing the top cover. additionally, you should check the 2 ribbons connecting the DVD to the main pcb to ensure that these are the same.
in my case, i replaced my 3576 burner unit with a 513 burner unit and it worked flawlessly. note here that one of the ribbons was NOT identical, but was the same size. it was just missing an ' unused ' trace in the middle of the ribbon. i did not need to modify anything to implement the 513 burner in the 3576.
if you're handy with a screwdriver, you could confirm 2160 repair by temporarily swapping the burner unit from your 513 into the 2160 and doing a test burn before you go through an actual purchase.
it's pretty unlikely that you would damage anything by doing a quick test, as long as you're careful...