Originally Posted by JimLely
Is it likely that the FW really is on this PCB?
based upon what i've done so far with both my 3576 and my 513 units, i would say that the majority of the smarts, including the firmware, are located on the main pcb that is shipped as a companion with the DVD burner unit.
the small PCB located on the DVD burner unit, itself, is esentially a ' dumb ' interface for the optics, the spindle motor, and the stepper, etc....
the ' motherboard ', appears to be the primary component interfacing the front panel, the tuner electronics, the power supply, etc, however, it does not appear to have much in the way of ' mainstream ' intelligence.
the companion PCB that comes with the DVD burner unit interfaces to the DVD burner unit, the HDD unit, and the motherboard, and possibly even the front panel ( i haven't fully disassembled either of these machines )...
perhaps 234 could confirm that the firmware is resident on the DVD burner's companion PCB. i would bet that it is. i do know that the 513's DVD burner unit, itself, is indeed compatible with my 3576 ( through testing ), and would bet that it's also compatble with the 2160, assuming that it is a good physical fit.