I have a mitshubishi Diamond Pro 900u. When you press the power button the monitor turns on and off. It makes a clicking noise inside and the green light blinks in succession. I am told this is overvoltage protection. I would like to know what would cause this condition and how to check the components.
Thanks.

I have similar problem.I am trying to repair same monitor.Monitor is working 5 minut and than just switch off.I push on/off buton, and works 2 minut, and still turn off. I suspect ET453? Any idea?
Tnx!

BTW: Hi to all i am new here!

Check C903 by replacement must be 450V.

Then check C963, C972, C955, C956.

These all assume that overvoltage is the fault.

Rich

thank you. I changed all of them. Maybe a few more... :)Anyway monitor is working!

best regards,
miha

I've had this monitor for five years and then it started flicking every so often like a screen refresh but not from the computer. The flicking became more frequent then the monitor died. I've googled it and quite a few others had the same thing happen. I found this link on an indeprh google search. Do any of you know what the fault might be and can it be repairable.