Today 11/20/12 (12/11/20) un-soldered IR diode from 532 driver, attached 1 ohm resistor. 2 AA alky @ 3.6v, 3.29 across resistor. No reading on PD pad. As suspected the PD is not being used even though the circuitry appears to be on the board. Attached LD from Samsung DVD burner. Three pin flat w/red and IR. Red lases weakly on 2 AAs. Modified CPU PSU (http://laserpointerforums.com/f42/computer-psu-power-lds-46354.html) on the 3v rail it lases brighter but flickers. On the 5v rail it is bright and hot. Uncollimated beam will burn paper up close! Need to scrounge up some lenses.