Vl1918 it poweres on and shuts off.repeat

Hello,
I have 1500 Princeston monitors in my labs.
the 1700 series need a high rated cap. the company used Caps that could not react to constant on off abuse.
The 19s are about the same If you only have two caps.
the Larger cap is25V at 1000uf replace with a higher grade cap at 1000mF at 25Volts
the smaller of the two is 1000uF at 10 V
replaced again with a higher grade Cap vauled at 1000mF at 10Volts.
Belive me after 300 of these it's the caps. if they are buldging or not.
If you have a VL2018w the kind I just repaired today and one that i am using at this very moment.
It uses 4 caps on an a seperate inverter board. all four must be replaced. and use the good stuff.
all four are 1000mF at 10volts.I use Nichicon Capacitors only.About 3.50 for the average joe.
I get them for .45 but I buy like 1000 at a time.
I just repaired 4 1708's and will be repairing 11 of them tomorow.
Like I've said when they work, they work well and we keep ours on 24/7/365.
for the money I'd go with a Philips 17" or 19" they make them better than thier plasma TV's.
Hope this helped.
44Hink

First of all I'm not an electronics guy at all. I had a Philips 170S5B/27 monitor (3 actually for a triple monitor setup.) One was taking longer and longer to come on. So I was watching a eBay auction for another one for $70 ending in 90 min. Read on here about replacing the caps. Found 9, 470uf 25vt caps on the power bd with some bulging. (I think thats what it is) Radio Shack had 8, 470uf but 35vt ones. My Dad thought it would probably be ok to use them. (???) Replaced them and couldnt believe I got the monitor working like new 5 min before the auction ended! So I let it go. Only cost me $11. So thanks!!!

PS. Is this problem because of turning it on and off? I only use it a few times a week and for just a few hours (iRacing.com) so I figured I'd save energy and life by turning them off. Should I leave them on all the time?