I have no Idea whats wrong

[nickel525]

I am a beginner...second time around - the first one i lost because I completely forgot to water it for a month or so....don't ask.
Since then I've purchased another Phal orchid...white petals w/ magenta lip, and an orchid book. I bought it when it was in bloom discovered that it was planted in a potting mixture so once the flowers fell off (naturally) I cut back the spike to the last (newest) node, thinking that since it was only march/april it would grow and bloom again. I had it positioned about 10' away from a south facing window...and i live in north FL right now...so it's usually still pretty bright. My best friend in south fla was having much better luck with her phal orchid outside...so I figured I would move mine there too, after i repotted it in spahg moss. Now one of the big leaves has started to turn yellow...and there's even an area within the yellow part that is transparent...is this some kind of leaf fungus. the other leaves seem ok.
Also the spike when i initially cut it turned mushy and brown so i recut it with sterile scissors and now the spike has started to ooze "sap". I don't know what's going on. I've since joining the orchidboard and reading some tips sprinkled cinnamon on the leaf and the spike. I hope this helps.

How long should I wait to see if this is helping?
Should I cut out the yellow part of the leaf?
Is it fungus or a sunburn?
I hope the pictures help...the speckled brown stuff is the cinnamon.