I bought a broken Scientech 364 laser power meter from LaserBen at a very fair price in one of his sale-threads on the forum recently.
I replaced a missing fuse-socket and got a red ON-light but the meter jumps up to maximum value and stays there.
I could propably trace the circuit, there isn't that many components but since laser-playtime is scarce it would help me very much to find a schematic!
I bought this meter and a 100W detector to use with my CO2 laser to tweak alignment when I put it in my CNC-machine.