Turns on for split second

switch off.wait for 5 mins.
press & hold power button till it turns on then off.
ifno luck try this-
switch on by pressing power button while holding volume + and -.
keep hold of both until powers on.
can take few mins.
good luck!!!

Try to switch it on with the battery removed. If it works, then you will have to replace the battery.

Try this link "http://esupport.sony.com/US/perl/model-documents.pl?mdl=MVC-FD200&region_id=1" then click on Operating Instructions. hope this helps.

http://www.steves-digicams.com/2002_reviews/fd200.html
select the information you need in the left ...its not a user guide...but it salmost what you need

You know I would probably invest in your knowledge if you steped to the plate as you said and givin a satisfied answer to my FIRST inquiry Without trying to Get somethine for it! You would have gained my confidence.
Sincerly;
Richard T. Moorhouse
Charleston, Mo.

replace the power suply unit the 5v stand by is not working
if youhave good hands buy a 5 volt power supply and connect it to the same output (but remember to remove the transformer for that power )
check it with a dvm
hope i helped

Have you tried another battery?
Even the lithium ions will eventually not hold a re-charge.
If the unit stays on with external power, there is a good possibility that a new battery will solve the issue

I was just trying to solve this exact same problem on my girlfriends A345 and upon inspecting the battery door I noticed a small tab had been broken off. I lined up the tab and just above the memory card where it says push to eject there is a slot. In that slot is a tiny black pressure switch that the broken off tab used to depress. I stuffed a small piece of wire in there and hit power and it works just as it did :) hope this solves your problem as I'm sure these tiny tabs break off without people noticing since the battery door closes and locks without them

THE CARD PROBLBLY HAS NOT BEEN FORMATTED...ARE YOU SURE IT IS A MEMORY STICK PRO "DUO" THERE ARE DIFFERNT KINDS OF MEMORY STICKS (PRO DUO, PRO, QUAL, ETC.)

try this link

www.mccombs.utexas.edu/media/DriversManuals/SonyMavicaMVC-FD100.pdf -

is the manual for the FD200